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Matlock DN, Ratcliffe SJ, Courtney SE, Kirpalani H, Firestone K, Stein H, Dysart K, Warren K, Goldstein MR, Lund KC, Natarajan A, Demissie E, Foglia EE. The Diaphragmatic Initiated Ventilatory Assist (DIVA) trial: study protocol for a randomized controlled trial comparing rates of extubation failure in extremely premature infants undergoing extubation to non-invasive neurally adjusted ventilatory assist versus non-synchronized nasal intermittent positive pressure ventilation. Trials 2024; 25:201. [PMID: 38509583 PMCID: PMC10953115 DOI: 10.1186/s13063-024-08038-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/07/2023] [Accepted: 03/06/2024] [Indexed: 03/22/2024] Open
Abstract
BACKGROUND Invasive mechanical ventilation contributes to bronchopulmonary dysplasia (BPD), the most common complication of prematurity and the leading respiratory cause of childhood morbidity. Non-invasive ventilation (NIV) may limit invasive ventilation exposure and can be either synchronized or non-synchronized (NS). Pooled data suggest synchronized forms may be superior. Non-invasive neurally adjusted ventilatory assist (NIV-NAVA) delivers NIV synchronized to the neural signal for breathing, which is detected with a specialized catheter. The DIVA (Diaphragmatic Initiated Ventilatory Assist) trial aims to determine in infants born 240/7-276/7 weeks' gestation undergoing extubation whether NIV-NAVA compared to non-synchronized nasal intermittent positive pressure ventilation (NS-NIPPV) reduces the incidence of extubation failure within 5 days of extubation. METHODS This is a prospective, unblinded, pragmatic, multicenter phase III randomized clinical trial. Inclusion criteria are preterm infants 24-276/7 weeks gestational age who were intubated within the first 7 days of life for at least 12 h and are undergoing extubation in the first 28 postnatal days. All sites will enter an initial run-in phase, where all infants are allocated to NIV-NAVA, and an independent technical committee assesses site performance. Subsequently, all enrolled infants are randomized to NIV-NAVA or NS-NIPPV at extubation. The primary outcome is extubation failure within 5 days of extubation, defined as any of the following: (1) rise in FiO2 at least 20% from pre-extubation for > 2 h, (2) pH ≤ 7.20 or pCO2 ≥ 70 mmHg; (3) > 1 apnea requiring positive pressure ventilation (PPV) or ≥ 6 apneas requiring stimulation within 6 h; (4) emergent intubation for cardiovascular instability or surgery. Our sample size of 478 provides 90% power to detect a 15% absolute reduction in the primary outcome. Enrolled infants will be followed for safety and secondary outcomes through 36 weeks' postmenstrual age, discharge, death, or transfer. DISCUSSION The DIVA trial is the first large multicenter trial designed to assess the impact of NIV-NAVA on relevant clinical outcomes for preterm infants. The DIVA trial design incorporates input from clinical NAVA experts and includes innovative features, such as a run-in phase, to ensure consistent technical performance across sites. TRIAL REGISTRATION www. CLINICALTRIALS gov , trial identifier NCT05446272 , registered July 6, 2022.
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Affiliation(s)
- David N Matlock
- University of Arkansas for Medical Sciences, 4301 W. Markham St., Slot 512-5B, Little Rock, AR, 72205, USA.
- University of Arkansas for Medical Sciences, Little Rock, AR, USA.
| | | | | | - Haresh Kirpalani
- University of Pennsylvania Perelman School of Medicine, Philadelphia, PA, USA
- McMaster University, Hamilton, ON, Canada
| | | | | | - Kevin Dysart
- Nemours Children's Health Wilmington, Philadelphia, PA, USA
| | - Karen Warren
- The Children's Hospital of Philadelphia, Philadelphia, PA, USA
| | | | | | - Aruna Natarajan
- National Heart, Lung and Blood Institute, National Institutes of Health, Bethesda, MD, USA
| | - Ejigayehu Demissie
- National Heart, Lung and Blood Institute, National Institutes of Health, Bethesda, MD, USA
| | - Elizabeth E Foglia
- University of Pennsylvania Perelman School of Medicine, Philadelphia, PA, USA
- The Children's Hospital of Philadelphia, Philadelphia, PA, USA
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Norman AV, Smolkin ME, Farivar BS, Tracci MC, Weaver ML, Kern JA, Ratcliffe SJ, Clouse WD. Current Transthoracic Supra-Aortic Trunk Surgical Reconstruction Has Similar 30-Day Cardiovascular Outcomes Compared to Extra-Anatomic Revascularization but With Higher Morbidity Burden. Ann Vasc Surg 2024; 100:155-164. [PMID: 37852366 DOI: 10.1016/j.avsg.2023.08.032] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/08/2023] [Revised: 08/16/2023] [Accepted: 08/17/2023] [Indexed: 10/20/2023]
Abstract
BACKGROUND Operative risk for supra-aortic trunk (SAT) surgical revascularization for occlusive disease, particularly transthoracic reconstruction (TR), remains ill-defined. This study sought to describe and compare 30-day outcomes of TR and extra-anatomic (ER) SAT surgical reconstruction for an occlusive indication across the United States over a contemporary 15-year period. METHODS Using the National Surgical Quality Improvement Program, TR and ER performed during 2005-2019 were identified. Procedures performed for nonocclusive indications and those concomitant with coronary or valve operations were excluded. Rates of stroke, death, myocardial infarction (MI) and these as composite outcome (S/D/M) were compared. Logistic regression with stabilized inverse probability weighting (IPW) was used to compare groups via average treatment effect (ATE) while adjusting for covariate imbalances. RESULTS Over the 15-year period, 166 TR and 1,900 ER patients were identified. The majority of ERs were carotid-subclavian bypass (n = 1,344; 70.7%) followed by carotid-carotid bypass (n = 261; 13.7%) and subclavian/carotid transpositions (n = 123; 6.5%). TR consisted of aorto-SAT bypass (n = 120; 72.3%) and endarterectomy (n = 46; 27.7%). The median age was 64 years for TR and 65 years in ER (P = 0.039). Those undergoing TR were more often women (69.0% vs. 56.9%; P = 0.001) and less likely to have undergone previous cardiac surgery (9.2% vs. 20.8%; P = 0.006). TR were also less frequently hypertensive (68.1% vs. 75.4%; P = 0.038) and had statistically lower preoperative creatinine levels (0.86 vs 0.91; P = 0.002). Unadjusted rates of MI (0.6% vs. 1.3%; P = 0.72) and stroke (3.6% vs. 1.9%; P = 0.15) were similar between groups with mortality (3.6% vs. 1.5%; P = 0.05) and S/D/M (6.6% vs. 3.9%; P = 0.10) trending higher with TR. IPWs could be calculated for 1,754 patients (148 TR; 1,606 ER). The estimated probability of S/D/M was 3.8% in the ER group and 6.2% in TR; no difference was seen in ATE (2.4%; 95% confidence interval [CI]: -1.5 to 6.2; P = 0.23). No differences were seen in individual component ATEs (stroke: 3.0% vs. 1.7%; ATE = 1.3%; 95% CI: -3.9 to 1.3; P = 0.32; mortality: 3.8% vs. 1.4%; ATE = 2.4%; 95% CI: -5.6 to 0.7; P = 0.13). Secondary outcomes showed TR patients were more likely to have non-home discharge (18.7% vs. 6.6%; ATE = 12.1%; 95% CI: 5.0-19.2; P < 0.001) and longer lengths of stay (6.1 vs. 4.0; ATE = 2.2 days; 95% CI: 0.9-3.4; P < 0.001). Moreover, TR patients were more likely to require transfusion (22.7% vs. 5.0%; ATE = 17.7%; 95% CI: 10.2-25.2; P < 0.001) and develop sepsis (2.7% vs. 0.2%; ATE = 2.5%; 95% CI: 0.1-5.0; P = 0.04). CONCLUSIONS Transthoracic and extra-anatomic surgical reconstruction of the SATs for occlusive disease have similar operative cardiovascular risk. However, morbidity tends to be higher with TR due to higher transfusion requirements, sepsis risk, and need for facility stay. These results suggest ER as a first-line approach in those with proper disease anatomy is reasonable with lower morbidity, while TR remains justified in appropriate patients.
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Affiliation(s)
- Anthony V Norman
- Division of Vascular and Endovascular Surgery, Department of Surgery, University of Virginia, Charlottesville, VA
| | - Mark E Smolkin
- Division of Biostatistics, Department of Public Health Sciences, Old Med School, University of Virginia, Charlottesville, VA
| | - Behzad S Farivar
- Division of Vascular and Endovascular Surgery, Department of Surgery, University of Virginia, Charlottesville, VA
| | - Margaret C Tracci
- Division of Vascular and Endovascular Surgery, Department of Surgery, University of Virginia, Charlottesville, VA
| | - M Libby Weaver
- Division of Vascular and Endovascular Surgery, Department of Surgery, University of Virginia, Charlottesville, VA
| | - John A Kern
- Division of Vascular and Endovascular Surgery, Department of Surgery, University of Virginia, Charlottesville, VA
| | - Sarah J Ratcliffe
- Division of Biostatistics, Department of Public Health Sciences, Old Med School, University of Virginia, Charlottesville, VA
| | - W Darrin Clouse
- Division of Vascular and Endovascular Surgery, Department of Surgery, University of Virginia, Charlottesville, VA.
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Weese-Mayer DE, Di Fiore JM, Lake DE, Hibbs AM, Claure N, Qiu J, Ambalavanan N, Bancalari E, Kemp JS, Zimmet AM, Carroll JL, Martin RJ, Krahn KN, Hamvas A, Ratcliffe SJ, Krishnamurthi N, Indic P, Dormishian A, Dennery PA, Moorman JR. Maturation of cardioventilatory physiological trajectories in extremely preterm infants. Pediatr Res 2024; 95:1060-1069. [PMID: 37857848 DOI: 10.1038/s41390-023-02839-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/13/2023] [Revised: 08/14/2023] [Accepted: 09/27/2023] [Indexed: 10/21/2023]
Abstract
BACKGROUND In extremely preterm infants, persistence of cardioventilatory events is associated with long-term morbidity. Therefore, the objective was to characterize physiologic growth curves of apnea, periodic breathing, intermittent hypoxemia, and bradycardia in extremely preterm infants during the first few months of life. METHODS The Prematurity-Related Ventilatory Control study included 717 preterm infants <29 weeks gestation. Waveforms were downloaded from bedside monitors with a novel sharing analytics strategy utilized to run software locally, with summary data sent to the Data Coordinating Center for compilation. RESULTS Apnea, periodic breathing, and intermittent hypoxemia events rose from day 3 of life then fell to near-resolution by 8-12 weeks of age. Apnea/intermittent hypoxemia were inversely correlated with gestational age, peaking at 3-4 weeks of age. Periodic breathing was positively correlated with gestational age peaking at 31-33 weeks postmenstrual age. Females had more periodic breathing but less intermittent hypoxemia/bradycardia. White infants had more apnea/periodic breathing/intermittent hypoxemia. Infants never receiving mechanical ventilation followed similar postnatal trajectories but with less apnea and intermittent hypoxemia, and more periodic breathing. CONCLUSIONS Cardioventilatory events peak during the first month of life but the actual postnatal trajectory is dependent on the type of event, race, sex and use of mechanical ventilation. IMPACT Physiologic curves of cardiorespiratory events in extremely preterm-born infants offer (1) objective measures to assess individual patient courses and (2) guides for research into control of ventilation, biomarkers and outcomes. Presented are updated maturational trajectories of apnea, periodic breathing, intermittent hypoxemia, and bradycardia in 717 infants born <29 weeks gestation from the multi-site NHLBI-funded Pre-Vent study. Cardioventilatory events peak during the first month of life but the actual postnatal trajectory is dependent on the type of event, race, sex and use of mechanical ventilation. Different time courses for apnea and periodic breathing suggest different maturational mechanisms.
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Affiliation(s)
- Debra E Weese-Mayer
- Department of Pediatrics, Northwestern University Feinberg School of Medicine, Chicago, IL, USA.
- Division of Autonomic Medicine, Department of Pediatrics, Ann & Robert H Lurie Children's Hospital of Chicago and Stanley Manne Children's Research Institute, Chicago, IL, USA.
| | - Juliann M Di Fiore
- Department of Pediatrics, Case Western Reserve University, School of Medicine, Cleveland, OH, USA.
- Department of Pediatrics, Division of Neonatology, UH Rainbow Babies & Children's Hospital, Cleveland, OH, USA.
| | - Douglas E Lake
- Division of Cardiovascular Medicine, Center for Advanced Medical Analytics and Department of Internal Medicine, University of Virginia School of Medicine, Charlottesville, VA, USA
| | - Anna Maria Hibbs
- Department of Pediatrics, Case Western Reserve University, School of Medicine, Cleveland, OH, USA
- Department of Pediatrics, Division of Neonatology, UH Rainbow Babies & Children's Hospital, Cleveland, OH, USA
| | - Nelson Claure
- Division of Neonatology, Department of Pediatrics, Holtz Children's Hospital - Jackson Memorial Medical Center, University of Miami Miller School of Medicine, Miami, FL, USA
| | - Jiaxing Qiu
- Division of Cardiovascular Medicine, Center for Advanced Medical Analytics and Department of Internal Medicine, University of Virginia School of Medicine, Charlottesville, VA, USA
| | - Namasivayam Ambalavanan
- Division of Neonatology, Department of Pediatrics, University of Alabama at Birmingham School of Medicine, Birmingham, AL, USA
| | - Eduardo Bancalari
- Division of Neonatology, Department of Pediatrics, Holtz Children's Hospital - Jackson Memorial Medical Center, University of Miami Miller School of Medicine, Miami, FL, USA
| | - James S Kemp
- Department of Pediatrics, Washington University School of Medicine in St. Louis, St. Louis, MO, USA
| | - Amanda M Zimmet
- Division of Cardiovascular Medicine, Center for Advanced Medical Analytics and Department of Internal Medicine, University of Virginia School of Medicine, Charlottesville, VA, USA
| | - John L Carroll
- Department of Pediatrics, University of Arkansas for Medical Sciences, Little Rock, AR, USA
| | - Richard J Martin
- Department of Pediatrics, Case Western Reserve University, School of Medicine, Cleveland, OH, USA
- Department of Pediatrics, Division of Neonatology, UH Rainbow Babies & Children's Hospital, Cleveland, OH, USA
| | - Katy N Krahn
- Division of Cardiovascular Medicine, Center for Advanced Medical Analytics and Department of Internal Medicine, University of Virginia School of Medicine, Charlottesville, VA, USA
| | - Aaron Hamvas
- Department of Pediatrics, Northwestern University Feinberg School of Medicine, Chicago, IL, USA
- Division of Neonatology, Department of Pediatrics, Ann & Robert H Lurie Children's Hospital of Chicago and Stanley Manne Children's Research Institute, Chicago, IL, USA
| | - Sarah J Ratcliffe
- Public Health Sciences, University of Virginia School of Medicine, Charlottesville, VA, USA
| | - Narayanan Krishnamurthi
- Division of Autonomic Medicine, Department of Pediatrics, Ann & Robert H Lurie Children's Hospital of Chicago and Stanley Manne Children's Research Institute, Chicago, IL, USA
| | - Premananda Indic
- Department of Electrical Engineering, University of Texas Tyler, Tyler, TX, USA
| | - Alaleh Dormishian
- Division of Neonatology, Department of Pediatrics, Holtz Children's Hospital - Jackson Memorial Medical Center, University of Miami Miller School of Medicine, Miami, FL, USA
| | - Phyllis A Dennery
- Hasbro Children's Hospital, Brown University, Warren Alpert School of Medicine, Providence, RI, USA
| | - J Randall Moorman
- Division of Cardiovascular Medicine, Center for Advanced Medical Analytics and Department of Internal Medicine, University of Virginia School of Medicine, Charlottesville, VA, USA
- Public Health Sciences, University of Virginia School of Medicine, Charlottesville, VA, USA
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Scott EJ, Young S, Ratcliffe SJ, Wang XQ, Mehaffey JH, Sharma A, Rycus P, Tonna J, Yarboro L, Bryner B, Collins M, Teman NR. Venoarterial Extracorporeal Life Support Use in Acute Pulmonary Embolism Shows Favorable Outcomes. Ann Thorac Surg 2024:S0003-4975(24)00109-7. [PMID: 38360341 DOI: 10.1016/j.athoracsur.2024.02.008] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/13/2023] [Revised: 01/04/2024] [Accepted: 02/04/2024] [Indexed: 02/17/2024]
Abstract
BACKGROUND Differences in outcomes by indication for venoarterial extracorporeal life support (VA-ECLS) are poorly described. We hypothesized that patients on VA-ECLS for acute pulmonary embolism (PE) have fewer complications and better survival than patients on VA-ECLS for other indications. METHODS All patients ≥18 years on VA-ECLS from the Extracorporeal Life Support Organization global registry (2010-2019) were evaluated (n = 29,842). After excluding patients aged >79 years (n = 729) and those with incomplete indication data (n = 2530), patients were stratified by VA-ECLS indication for PE vs all other indications. The association between being discharged alive and each type of complication with VA-ECLS indication was assessed. RESULTS Of 26,583 patients included in the analysis, 978 (3.7%) were on VA-ECLS for a primary diagnosis of acute PE. Acute PE patients were younger (53.1 vs 56.7 years, P < .001) and were more likely to be women (52.1% vs 32.3%, P < .001). Patients who underwent VA-ECLS for acute PE were 78% more likely to be discharged alive vs patients supported with VA-ECLS for other reasons (P < .001). Acute PE patients had fewer cardiovascular and renal complications (26.6% vs 38.0% and 31.1% vs 39.4%, respectively; adjusted P < .001). Acute PE patients had higher odds of having clots and mechanical complications (8.7% vs 7.9% and 16.7% vs 14.6%, respectively; adjusted P < .001). CONCLUSIONS Patients undergoing VA-ECLS for acute PE have higher odds of survival to hospital discharge compared with those supported for other indications. Additionally, VA-ECLS in this population is associated with fewer cardiovascular and renal complications but higher mechanical complications.
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Affiliation(s)
- Erik J Scott
- Division of Cardiac Surgery, Department of Surgery, University of Virginia, Charlottesville, Virginia
| | - Steven Young
- Division of Cardiac Surgery, Department of Surgery, University of Virginia, Charlottesville, Virginia
| | - Sarah J Ratcliffe
- Division of Biostatistics, Department of Public Health Sciences, University of Virginia, Charlottesville, Virginia
| | - Xin-Qun Wang
- Division of Biostatistics, Department of Public Health Sciences, University of Virginia, Charlottesville, Virginia
| | - J Hunter Mehaffey
- Division of Cardiac Surgery, Department of Surgery, University of Virginia, Charlottesville, Virginia
| | - Aditya Sharma
- Division of Vascular Medicine, Department of Medicine, University of Virginia, Charlottesville, Virginia
| | - Peter Rycus
- Extracorporeal Life Support Organization, Ann Arbor, Michigan
| | - Joseph Tonna
- Division of Cardiothoracic Surgery, Department of Surgery, University of Utah, Salt Lake City, Utah
| | - Leora Yarboro
- Division of Cardiac Surgery, Department of Surgery, University of Virginia, Charlottesville, Virginia
| | - Ben Bryner
- Division of Cardiovascular Surgery, Department of Surgery, Duke University, Durham, North Carolina
| | - Michael Collins
- Department of Thoracic and Cardiovascular Surgery, Allegheny Health Network, Pittsburgh, Pennsylvania
| | - Nicholas R Teman
- Division of Cardiac Surgery, Department of Surgery, University of Virginia, Charlottesville, Virginia.
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Ulrich CM, Ratcliffe SJ, Hochheimer CJ, Zhou Q, Huang L, Gordon T, Knafl K, Richmond T, Schapira MM, Miller V, Mao JJ, Naylor M, Grady C. Informed Consent among Clinical Trial Participants with Different Cancer Diagnoses. AJOB Empir Bioeth 2023:1-13. [PMID: 37921867 DOI: 10.1080/23294515.2023.2262992] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2023]
Abstract
IMPORTANCE Informed consent is essential to ethical, rigorous research and is important to recruitment and retention in cancer trials. OBJECTIVE To examine cancer clinical trial (CCT) participants' perceptions of informed consent processes and variations in perceptions by cancer type. DESIGN AND SETTING AND PARTICIPANTS Cross-sectional survey from mixed-methods study at National Cancer Institute-designated Northeast comprehensive cancer center. Open-ended and forced-choice items addressed: (1) enrollment and informed consent experiences and (2) decision-making processes, including risk-benefit assessment. Eligibility: CCT participant with gastro-intestinal or genitourinary, hematologic-lymphatic malignancies, lung cancer, and breast or gynecological cancer (N = 334). MAIN OUTCOME MEASURES Percentages satisfied with consent process and information provided; and assessing participation's perceptions of risks/benefits. Multivariable logistic or ordinal regression examined differences by cancer type. RESULTS Most patient-participants felt well informed by the consent process (more than 90% overall and by cancer type) and. most (87.4%) reported that the consent form provided all the information they wanted, although nearly half (44.8%) reported that they read the form somewhat carefully or less. More than half (57.9%) said that talking to research staff (i.e., the consent process) had a greater impact on participation decisions than reading the consent form (2.1%). A third (31.1%) were very sure of joining in research studies before the informed consent process (almost half of lung cancer patients did-47.1%). Most patients personally assessed the risks and benefits before consenting. However, trust in physicians played an important role in the decision to enroll in CCT. CONCLUSIONS AND RELEVANCE Cancer patients rely less on written features of the informed consent process than on information obtained from the research staff and their own physicians. Research should focus on information and communication strategies that support informed consent from referring physicians, researchers, and others to improve patient risk-benefit assessment and decision-making.
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Affiliation(s)
- Connie M Ulrich
- University of Pennsylvania School of Nursing, Philadelphia, Pennsylvania, USA
- University of Pennsylvania Perelman School of Medicine, Philadelphia, Pennsylvania, USA
| | | | | | - Qiuping Zhou
- George Washington University, Washington, District of Columbia, USA
| | - Liming Huang
- University of Pennsylvania School of Nursing, Philadelphia, Pennsylvania, USA
| | - Thomas Gordon
- University of Massachusetts Lowell, Lowell, Massachusetts, USA
| | - Kathleen Knafl
- University of North Carolina at Chapel Hill, Chapel Hill, North Carolina, USA
| | - Therese Richmond
- University of Pennsylvania School of Nursing, Philadelphia, Pennsylvania, USA
| | - Marilyn M Schapira
- University of Pennsylvania Perelman School of Medicine, Philadelphia, Pennsylvania, USA
| | - Victoria Miller
- Children's Hospital of Philadelphia, Philadelphia, Pennsylvania, USA
| | - Jun J Mao
- Memorial Sloan Kettering Cancer Center, New York, New York, USA
| | - Mary Naylor
- University of Pennsylvania School of Nursing, Philadelphia, Pennsylvania, USA
| | - Christine Grady
- National Institutes of Health, Clinical Center Department of Bioethics, Bethesda, Maryland, USA
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Turrentine FE, Charles EJ, Marsh KM, Wang XQ, Ratcliffe SJ, Behrman SW, Clarke C, Reines HD, Jones RS, Zaydfudim VM. Impact of Medicaid Expansion on Abdominal Surgery Morbidity, Mortality, and Hospital Readmission. J Surg Res 2023; 291:586-595. [PMID: 37540976 PMCID: PMC10529060 DOI: 10.1016/j.jss.2023.06.047] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/26/2023] [Revised: 06/14/2023] [Accepted: 06/27/2023] [Indexed: 08/06/2023]
Abstract
INTRODUCTION Medicaid expansion's (ME) impact on postoperative outcomes after abdominal surgery remains poorly defined. We aimed to evaluate ME's effect on surgical morbidity, mortality, and readmissions in a state that expanded Medicaid (Virginia) compared to a state that did not (Tennessee) over the same time period. METHODS Virginia Surgical Quality Collaborative (VSQC) American College of Surgeons National Surgical Quality Improvement Program data for Medicaid, uninsured, and private insurance patients undergoing abdominal procedures before Virginia's ME (3/22/18-12/31/18) were compared with post-ME (1/1/19-12/31/19), as were corresponding non-ME state Tennessee Surgical Quality Collaborative (TSQC) data for the same 2018 and 2019 time periods. Postexpansion odds ratios for 30-d morbidity, 30-d mortality, and 30-d unplanned readmission were estimated using propensity score-adjusted logistic regression models. RESULTS In Virginia, 4753 abdominal procedures, 2097 pre-ME were compared to 2656 post-ME. In Tennessee, 5956 procedures, 2484 in 2018 were compared to 3472 in 2019. VSQC's proportion of Medicaid population increased following ME (8.9% versus 18.8%, P < 0.001) while uninsured patients decreased (20.4% versus 6.4%, P < 0.001). Post-ME VSQC had fewer 30-d readmissions (12.2% versus 6.0%, P = 0.013). Post-ME VSQC Medicaid patients had significantly lower probability of morbidity (-8.18, 95% confidence interval: -15.52 ∼ -0.84, P = 0.029) and readmission (-6.92, 95% confidence interval: -12.56 ∼ -1.27, P = 0.016) compared to pre-ME. There were no differences in probability of morbidity or readmission in the TSQC Medicaid population between study periods (both P > 0.05); there were no differences in mortality between study periods in VSQC and TSQC patient populations (both P > 0.05). CONCLUSIONS ME was associated with decreased 30-d morbidity and unplanned readmissions in the VSQC. Data-driven policies accounting for ME benefits should be considered.
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Affiliation(s)
- Florence E Turrentine
- Department of Surgery, University of Virginia, Charlottesville, Virginia; Department of Surgery, Surgical Outcomes Research Center, University of Virginia, Charlottesville, Virginia; Virginia Surgical Quality Collaborative, Charlottesville, Virginia
| | - Eric J Charles
- Department of Surgery, University of Virginia, Charlottesville, Virginia
| | - Katherine M Marsh
- Department of Surgery, University of Virginia, Charlottesville, Virginia; Department of Surgery, Surgical Outcomes Research Center, University of Virginia, Charlottesville, Virginia
| | - Xin-Qun Wang
- Department of Public Health Science, University of Virginia, Charlottesville, Virginia
| | - Sarah J Ratcliffe
- Department of Surgery, Surgical Outcomes Research Center, University of Virginia, Charlottesville, Virginia; Department of Public Health Science, University of Virginia, Charlottesville, Virginia
| | - Stephen W Behrman
- Tennessee Surgical Quality Collaborative, Brentwood, Tennessee; Department of Surgery, Baptist Memorial Medical Education, Memphis, Tennessee
| | - Chris Clarke
- Tennessee Hospital Association, Brentwood, Tennessee
| | - H David Reines
- Virginia Surgical Quality Collaborative, Charlottesville, Virginia; Department of Surgery, Virginia Commonwealth University, InovaFairfax Medical Campus, Falls Church, Virginia
| | - R Scott Jones
- Department of Surgery, University of Virginia, Charlottesville, Virginia; Department of Surgery, Surgical Outcomes Research Center, University of Virginia, Charlottesville, Virginia; Virginia Surgical Quality Collaborative, Charlottesville, Virginia
| | - Victor M Zaydfudim
- Department of Surgery, University of Virginia, Charlottesville, Virginia; Department of Surgery, Surgical Outcomes Research Center, University of Virginia, Charlottesville, Virginia.
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7
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Hawkins AD, Scott EJ, De Guzman J, Ratcliffe SJ, Mehaffey JH, Hawkins RB, Strobel RJ, Speir A, Joseph M, Yarboro LT, Teman NR. Temporal Cluster Analysis of Deep Sternal Wound Infection in a Regional Quality Collaborative. J Surg Res 2023; 291:67-72. [PMID: 37352738 DOI: 10.1016/j.jss.2023.05.023] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/01/2023] [Revised: 03/31/2023] [Accepted: 05/15/2023] [Indexed: 06/25/2023]
Abstract
INTRODUCTION Deep sternal wound infection (DSWI) is a rare complication associated with high mortality. Seasonal variability in surgical site infections has been demonstrated, however, these patterns have not been applied to DSWI. The purpose of this study was to assess temporal clustering of DSWIs. METHODS All cardiac surgery patients who underwent sternotomy were queried from a regional Society of Thoracic Surgeons database from 17 centers from 2001 to 2019. All patients with the diagnosis of DSWI were then identified. Cluster analysis was performed at varying time intervals (monthly, quarterly, and yearly) at the hospital and regional level. DSWI rates were calculated by year and month, and compared using mixed-effects negative binomial regression. RESULTS A total of 134,959 patients underwent a sternotomy for cardiac surgery, of whom 469 (0.35%) developed a DSWI. Rates of DSWI per hospital across all years ranged from 0.12% to 0.69%. Collaborative-level rates of DSWIs were the greatest in September (0.44%) and the lowest in January (0.30%). Temporal clustering was not seen across seasonal quarters (high rate in preceeding quarter was not associated with a high rate in the next quarter) (P = 0.39). There were yearly differences across all institutions in the DSWI rates. A downward trend in DSWI rates was seen from 2001 to 2019 (P < 0.001). A difference among hospitals in the cohort was observed (P < 0.001). CONCLUSIONS DSWI are a rare event within our region. Unlike other surgical site infection, there does not appear to be a seasonal pattern associated with DSWI.
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Affiliation(s)
- Andrew D Hawkins
- Division of Cardiac Surgery, Department of Surgery, University of Virginia, Charlottesville, Virginia
| | - Erik J Scott
- Division of Cardiac Surgery, Department of Surgery, University of Virginia, Charlottesville, Virginia
| | - Jeison De Guzman
- Division of Cardiac Surgery, Department of Surgery, University of Virginia, Charlottesville, Virginia
| | - Sarah J Ratcliffe
- Division of Biostatistics, Department of Public Health Sciences, University of Virginia, Charlottesville, Virginia
| | - J Hunter Mehaffey
- Department of Cardiovascular and Thoracic Surgery, West Virginia University, Morgantown, West Virginia
| | - Robert B Hawkins
- Department of Cardiac Surgery, University of Michigan, Ann Arbor, Michigan
| | - Raymond J Strobel
- Division of Cardiac Surgery, Department of Surgery, University of Virginia, Charlottesville, Virginia
| | - Alan Speir
- Division of Cardiothoracic Surgery, Virginia Commonwealth University, Richmond, Virginia
| | - Mark Joseph
- Division of Cardiothoracic Surgery, Virginia Tech Carillion School of Medicine, Roanoke, Virginia
| | - Leora T Yarboro
- Division of Cardiac Surgery, Department of Surgery, University of Virginia, Charlottesville, Virginia
| | - Nicholas R Teman
- Division of Cardiac Surgery, Department of Surgery, University of Virginia, Charlottesville, Virginia.
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Jones SE, Bradwell KR, Chan LE, McMurry JA, Olson-Chen C, Tarleton J, Wilkins KJ, Ly V, Ljazouli S, Qin Q, Faherty EG, Lau YK, Xie C, Kao YH, Liebman MN, Mariona F, Challa AP, Li L, Ratcliffe SJ, Haendel MA, Patel RC, Hill EL. Who is pregnant? Defining real-world data-based pregnancy episodes in the National COVID Cohort Collaborative (N3C). JAMIA Open 2023; 6:ooad067. [PMID: 37600074 PMCID: PMC10432357 DOI: 10.1093/jamiaopen/ooad067] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/03/2023] [Revised: 05/12/2023] [Accepted: 08/08/2023] [Indexed: 08/22/2023] Open
Abstract
Objectives To define pregnancy episodes and estimate gestational age within electronic health record (EHR) data from the National COVID Cohort Collaborative (N3C). Materials and Methods We developed a comprehensive approach, named Hierarchy and rule-based pregnancy episode Inference integrated with Pregnancy Progression Signatures (HIPPS), and applied it to EHR data in the N3C (January 1, 2018-April 7, 2022). HIPPS combines: (1) an extension of a previously published pregnancy episode algorithm, (2) a novel algorithm to detect gestational age-specific signatures of a progressing pregnancy for further episode support, and (3) pregnancy start date inference. Clinicians performed validation of HIPPS on a subset of episodes. We then generated pregnancy cohorts based on gestational age precision and pregnancy outcomes for assessment of accuracy and comparison of COVID-19 and other characteristics. Results We identified 628 165 pregnant persons with 816 471 pregnancy episodes, of which 52.3% were live births, 24.4% were other outcomes (stillbirth, ectopic pregnancy, abortions), and 23.3% had unknown outcomes. Clinician validation agreed 98.8% with HIPPS-identified episodes. We were able to estimate start dates within 1 week of precision for 475 433 (58.2%) episodes. 62 540 (7.7%) episodes had incident COVID-19 during pregnancy. Discussion HIPPS provides measures of support for pregnancy-related variables such as gestational age and pregnancy outcomes based on N3C data. Gestational age precision allows researchers to find time to events with reasonable confidence. Conclusion We have developed a novel and robust approach for inferring pregnancy episodes and gestational age that addresses data inconsistency and missingness in EHR data.
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Affiliation(s)
- Sara E Jones
- Office of Data Science and Emerging Technologies, National Institute of Allergy and Infectious Diseases, National Institutes of Health, Rockville, MD 20852, United States
| | | | - Lauren E Chan
- College of Public Health and Human Sciences, Oregon State University, Corvallis, OR 97331, United States
| | - Julie A McMurry
- Department of Biomedical Informatics, University of Colorado, Anschutz Medical Campus, Aurora, CO 80045, United States
| | - Courtney Olson-Chen
- Department of Obstetrics and Gynecology, University of Rochester Medical Center, Rochester, NY 14620, United States
| | - Jessica Tarleton
- Department of Obstetrics and Gynecology, Medical University of South Carolina, Charleston, SC 29425, United States
| | - Kenneth J Wilkins
- Biostatistics Program, Office of the Director, National Institute of Diabetes and Digestive and Kidney Diseases, National Institutes of Health, Bethesda, MD 20892, United States
| | - Victoria Ly
- Department of Obstetrics and Gynecology, University of Rochester Medical Center, Rochester, NY 14620, United States
| | - Saad Ljazouli
- Palantir Technologies, Denver, CO 80202, United States
| | - Qiuyuan Qin
- Department of Public Health Sciences, University of Rochester Medical Center, Rochester, NY 14618, United States
| | - Emily Groene Faherty
- School of Public Health, University of Minnesota, Minneapolis, MN 55455, United States
| | | | - Catherine Xie
- Department of Public Health Sciences, University of Rochester Medical Center, Rochester, NY 14618, United States
| | - Yu-Han Kao
- Sema4, Stamford, CT 06902, United States
| | | | - Federico Mariona
- Beaumont Hospital, Dearborn, MI 48124, United States
- Wayne State University, Detroit, MI 48202, United States
| | - Anup P Challa
- Department of Chemical and Biomolecular Engineering, Vanderbilt University, Nashville, TN 37212, United States
| | - Li Li
- Sema4, Stamford, CT 06902, United States
| | - Sarah J Ratcliffe
- Department of Public Health Sciences, University of Virginia, Charlottesville, VA 22903, United States
| | - Melissa A Haendel
- College of Public Health and Human Sciences, Oregon State University, Corvallis, OR 97331, United States
| | - Rena C Patel
- Department of Medicine and Global Health, University of Washington, Seattle, WA 98105, United States
| | - Elaine L Hill
- Department of Obstetrics and Gynecology, University of Rochester Medical Center, Rochester, NY 14620, United States
- Department of Public Health Sciences, University of Rochester Medical Center, Rochester, NY 14618, United States
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9
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Kennady EH, Bryk DJ, Ali MM, Ratcliffe SJ, Mallawaarachchi IV, Ostad BJ, Beano HM, Ballantyne CC, Krzastek SC, Clements MB, Gray ML, Rapp DE, Ortiz NM, Smith RP. Low-intensity shockwave therapy improves baseline erectile function: a randomized sham-controlled crossover trial. Sex Med 2023; 11:qfad053. [PMID: 37965376 PMCID: PMC10642534 DOI: 10.1093/sexmed/qfad053] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/03/2023] [Revised: 08/19/2023] [Accepted: 09/27/2023] [Indexed: 11/16/2023] Open
Abstract
Background Low-intensity shockwave therapy for erectile dysfunction is emerging as a promising treatment option. Aim This randomized sham-controlled crossover trial assessed the efficacy of low-intensity shockwave therapy in the treatment of erectile dysfunction. Methods Thirty-three participants with organic erectile dysfunction were enrolled and randomized to shockwave therapy (n = 17) or sham (n = 16). The sham group was allowed to cross over to receive shockwave therapy after 1 month. Outcomes Primary outcomes were the changes in Sexual Health Inventory for Men (SHIM) score and Erection Hardness Score at 1 month following shockwave therapy vs sham, and secondary outcomes were erectile function measurements at 1, 3, and 6 months following shockwave therapy. Results At 1 month, mean SHIM scores were significantly increased in the shockwave therapy arm as compared with the sham arm (+3.0 vs -0.7, P = .024). Participants at 6 months posttreatment (n = 33) showed a mean increase of 5.5 points vs baseline (P < .001), with 20 (54.6%) having an increase ≥5. Of the 25 men with an initial Erection Hardness Score <3, 68% improved to a score ≥3 at 6 months. When compared with baseline, the entire cohort demonstrated significant increases in erectile function outcomes at 1, 3, and 6 months after treatment. Clinical Implications In this randomized sham-controlled crossover trial, we showed that 54.6% of participants with organic erectile dysfunction met the minimal clinically important difference in SHIM scores after treatment with low-intensity shockwave therapy. Strengths and Limitations Strengths of this study include a sham-controlled group that crossed over to treatment. Limitations include a modest sample size at a single institution. Conclusions Low-intensity shockwave therapy improves erectile function in men with erectile dysfunction as compared with sham treatment, which persists even 6 months after treatment. Clinical Trial Registration ClinicalTrials.gov NCT04434352.
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Affiliation(s)
- Emmett H Kennady
- Department of Urology, University of Virginia, Charlottesville, VA 22903, United States
| | - Darren J Bryk
- Department of Urology, University of Virginia, Charlottesville, VA 22903, United States
| | - Marwan M Ali
- Department of Urology, University of Virginia, Charlottesville, VA 22903, United States
| | - Sarah J Ratcliffe
- Department of Public Health Sciences, School of Medicine, University of Virginia, Charlottesville, VA 22903, United States
| | - Indika V Mallawaarachchi
- Department of Public Health Sciences, School of Medicine, University of Virginia, Charlottesville, VA 22903, United States
| | - Bahrom J Ostad
- Department of Urology, University of Virginia, Charlottesville, VA 22903, United States
| | - Hamza M Beano
- Department of Urology, University of Virginia, Charlottesville, VA 22903, United States
| | | | - Sarah C Krzastek
- Department of Urology, University of Virginia, Charlottesville, VA 22903, United States
| | - Matthew B Clements
- Department of Urology, University of Virginia, Charlottesville, VA 22903, United States
| | - Mikel L Gray
- Department of Urology, University of Virginia, Charlottesville, VA 22903, United States
| | - David E Rapp
- Department of Urology, University of Virginia, Charlottesville, VA 22903, United States
| | - Nicolas M Ortiz
- Department of Urology, University of Virginia, Charlottesville, VA 22903, United States
| | - Ryan P Smith
- Department of Urology, University of Virginia, Charlottesville, VA 22903, United States
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10
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Rapp DE, Farhi J, DeNovio A, Barquin D, Mallawaarachchi I, Ratcliffe SJ, Hutchison D, Greene KL. Comparison of In-person FPMRS-directed Pelvic Floor Therapy Program Versus Unsupervised Pelvic Floor Exercises Following Prostatectomy. Urology 2023; 178:54-60. [PMID: 37353089 DOI: 10.1016/j.urology.2023.06.007] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/01/2023] [Revised: 06/02/2023] [Accepted: 06/07/2023] [Indexed: 06/25/2023]
Abstract
OBJECTIVE To compare comprehensive continence outcomes in patients receiving pelvic floor muscle training (PFMT) vs standard unsupervised home pelvic floor exercise therapy (UPFE). METHODS As part of the UVA prostatectomy functional outcomes program, participating patients complete a 12-month PFMT program under FPMRS specialist supervision. We performed a retrospective review of prospectively collected longitudinal outcomes in patients receiving PFMT vs UPFE through 12-month follow-up. Primary study outcome was ICIQ-MLUTS SUI domain score (SDS). Secondary outcomes included daily pad use (PPD), SUI Cure (SDS=0), and quality of life score (IIQ-7). Multilevel mixed effects linear regression was used to model SDS over time. RESULTS Analysis included 40 men. No difference in patient characteristics was seen in comparison of PFMT vs UPFE cohorts (P = NS, all comparisons). Mean predicted SDS was significantly better in the PFMT vs UPFE cohorts at 6-month (0.81 ± 0.21 vs 1.75 ± 0.34, respectively) (P = .014) and 12-month (0.72 ± 0.17 vs 1.67 ± 0.30, respectively) (P = .004) time points. At 12-month follow-up, 11 (55%) vs 4 (20%) patients reported absence of SUI in PFMT vs UPFE cohorts, respectively. Predicted probabilities of SUI cure in PFMT vs UPFE cohorts at 12months were 0.52 ± 0.14 vs 0.23 ± 0.13, respectively (P = .14). At 12-month follow-up, the mean predicted PPD and IIQ score was 0.19 ± 0.10 vs 0.79 ± 0.33 and 2.86 ± 0.86 vs 2.55 ± 1.07 in PFMT vs UPFE cohorts, respectively (P = NS). CONCLUSION In-person, FMPRS-directed PFMT is associated with improved SUI domain scores following robotic-assisted laparoscopic prostatectomy, a finding durable through 12-month follow-up.
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Affiliation(s)
- David E Rapp
- Department of Urology, University of Virginia, Charlottesville, VA.
| | - Jacques Farhi
- Department of Urology, University of Virginia, Charlottesville, VA
| | - Anthony DeNovio
- University of Virginia School of Medicine, Charlottesville, VA
| | - David Barquin
- University of Virginia School of Medicine, Charlottesville, VA
| | | | - Sarah J Ratcliffe
- Department of Public Health Sciences, University of Virginia, Charlottesville, VA
| | - Dylan Hutchison
- Department of Urology, University of Virginia, Charlottesville, VA
| | - Kirsten L Greene
- Department of Urology, University of Virginia, Charlottesville, VA
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11
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Ambalavanan N, Weese-Mayer DE, Hibbs AM, Claure N, Carroll JL, Moorman JR, Bancalari E, Hamvas A, Martin RJ, Di Fiore JM, Indic P, Kemp JS, Dormishian A, Krahn KN, Qiu J, Dennery PA, Ratcliffe SJ, Troendle JF, Lake DE. Cardiorespiratory Monitoring Data to Predict Respiratory Outcomes in Extremely Preterm Infants. Am J Respir Crit Care Med 2023; 208:79-97. [PMID: 37219236 PMCID: PMC10870840 DOI: 10.1164/rccm.202210-1971oc] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/24/2022] [Accepted: 05/01/2023] [Indexed: 05/24/2023] Open
Abstract
Rationale: Immature control of breathing is associated with apnea, periodic breathing, intermittent hypoxemia, and bradycardia in extremely preterm infants. However, it is not clear if such events independently predict worse respiratory outcome. Objectives: To determine if analysis of cardiorespiratory monitoring data can predict unfavorable respiratory outcomes at 40 weeks postmenstrual age (PMA) and other outcomes, such as bronchopulmonary dysplasia at 36 weeks PMA. Methods: The Prematurity-related Ventilatory Control (Pre-Vent) study was an observational multicenter prospective cohort study including infants born at <29 weeks of gestation with continuous cardiorespiratory monitoring. The primary outcome was either "favorable" (alive and previously discharged or inpatient and off respiratory medications/O2/support at 40 wk PMA) or "unfavorable" (either deceased or inpatient/previously discharged on respiratory medications/O2/support at 40 wk PMA). Measurements and Main Results: A total of 717 infants were evaluated (median birth weight, 850 g; gestation, 26.4 wk), 53.7% of whom had a favorable outcome and 46.3% of whom had an unfavorable outcome. Physiologic data predicted unfavorable outcome, with accuracy improving with advancing age (area under the curve, 0.79 at Day 7, 0.85 at Day 28 and 32 wk PMA). The physiologic variable that contributed most to prediction was intermittent hypoxemia with oxygen saturation as measured by pulse oximetry <90%. Models with clinical data alone or combining physiologic and clinical data also had good accuracy, with areas under the curve of 0.84-0.85 at Days 7 and 14 and 0.86-0.88 at Day 28 and 32 weeks PMA. Intermittent hypoxemia with oxygen saturation as measured by pulse oximetry <80% was the major physiologic predictor of severe bronchopulmonary dysplasia and death or mechanical ventilation at 40 weeks PMA. Conclusions: Physiologic data are independently associated with unfavorable respiratory outcome in extremely preterm infants.
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Affiliation(s)
| | - Debra E. Weese-Mayer
- Ann & Robert H. Lurie Children’s Hospital of Chicago, Stanley Manne Research Institute, Northwestern University Feinberg School of Medicine, Chicago, Illinois
| | - Anna Maria Hibbs
- University Hospitals Rainbow Babies & Children’s Hospital, Case Western Reserve University, Cleveland, Ohio
| | | | - John L. Carroll
- University of Arkansas for Medical Sciences, Little Rock, Arkansas
| | | | | | - Aaron Hamvas
- Ann & Robert H. Lurie Children’s Hospital of Chicago, Stanley Manne Research Institute, Northwestern University Feinberg School of Medicine, Chicago, Illinois
| | - Richard J. Martin
- University Hospitals Rainbow Babies & Children’s Hospital, Case Western Reserve University, Cleveland, Ohio
| | - Juliann M. Di Fiore
- University Hospitals Rainbow Babies & Children’s Hospital, Case Western Reserve University, Cleveland, Ohio
| | | | - James S. Kemp
- Washington University School of Medicine in St. Louis, St. Louis, Missouri
| | | | | | - Jiaxing Qiu
- University of Virginia, Charlottesville, Virginia
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12
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Haywood NS, Ratcliffe SJ, Zheng X, Mao J, Farivar BS, Tracci MC, Malas MB, Goodney PP, Clouse WD. Operative and long-term outcomes of combined and staged carotid endarterectomy and coronary bypass. J Vasc Surg 2023; 77:1424-1433.e1. [PMID: 36681256 PMCID: PMC10353412 DOI: 10.1016/j.jvs.2023.01.015] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/23/2022] [Revised: 12/31/2022] [Accepted: 01/10/2023] [Indexed: 01/19/2023]
Abstract
OBJECTIVE Optimal temporal surgical management of significant carotid stenosis and coronary artery disease remains unknown. Carotid endarterectomy (CEA) and coronary artery bypass (CABG) are performed concurrently (CCAB) or in a staged (CEA-CABG or CABG-CEA) approach. Using the Vascular Quality Initiative-Vascular Implant Surveillance and Interventional Outcomes Coordinated Registry Network-Medicare-linked dataset, this study compared operative and long-term outcomes after CCAB and staged approaches. METHODS The Vascular Quality Initiative-Vascular Implant Surveillance and Interventional Outcomes Coordinated Registry Network dataset was used to identify CEAs from 2011 to 2018 with combined CABG or CABG within 45 days preceding or after CEA. Patients were stratified based on concurrent or staged approach. Primary outcomes were stroke, myocardial infarction (MI), all-cause mortality, stroke and death as composite (SD) and all as composite within 30 days from the last procedure as well as in the long term. Univariate analysis and risk-adjusted analysis using inverse propensity weighting were performed. Kaplan-Meier curves of stroke, MI, and death were created and compared. RESULTS There were 1058 patients included: 643 CCAB and 415 staged (309 CEA-CABG and 106 CABG-CEA). Compared with staged patients, those undergoing CCAB had a higher preoperative rate of congestive heart failure (24.8% vs 18.4%; P = .01) and decreased renal function (14.9% vs 8.5%; P < .01), as well as fewer prior neurological events (23.5% vs 31.4%; P < .01). Patients undergoing CCAB had similar weighted rate of 30-day stroke (4.6% vs 4.1%; P = .72), death (7.0% vs 5.0%; P = .32), and composite outcomes (stroke and death, 9.8% vs 8.5%; P = .56; stroke, death, and MI, 14.7% vs 17.4%; P = .31), but a lower weighted rate of MI (5.5% vs 11.5%; P < .01) vs the staged cohort. Long-term adjusted risks of stroke (hazard ratio [HR], 0.85; 95% confidence interval [CI], 0.54-1.36; P = .51) and mortality (HR, 1.02; 95% CI, 0.76-1.36; P=.91) were similar between groups, but higher risk of MI long-term was seen in those staged (HR, 1.49; 95% CI, 1.07-2.08; P = .02). CONCLUSIONS In patients undergoing CCAB or staged open revascularization for carotid stenosis and coronary artery disease, the staged approach had an increased risk of postoperative cardiac event, but the short- and long-term rates of stroke and mortality seem to be comparable. Adverse cardiovascular event risk is high between operations when staged and should be a consideration when selecting an approach. Although factors leading to staged sequencing performance need further clarity, CCAB seems to be safe and should be considered an equally reasonable option.
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Affiliation(s)
- Nathan S Haywood
- Department of Vascular and Endovascular Surgery, University of Virginia, Charlottesville, VA
| | - Sarah J Ratcliffe
- Department of Biostatistics, University of Virginia, Charlottesville, VA
| | - Xinyan Zheng
- Population Health Sciences, Weill Cornell Medicine, New York, NY
| | - Jialin Mao
- Population Health Sciences, Weill Cornell Medicine, New York, NY
| | - Behzad S Farivar
- Department of Vascular and Endovascular Surgery, University of Virginia, Charlottesville, VA
| | - Margaret C Tracci
- Department of Vascular and Endovascular Surgery, University of Virginia, Charlottesville, VA
| | - Mahmoud B Malas
- Department of Vascular and Endovascular Surgery, University of California San Diego, San Diego, CA
| | - Philip P Goodney
- Department of Vascular and Endovascular Surgery, Dartmouth-Hitchcock Medical Center, Lebanon, NH
| | - W Darrin Clouse
- Department of Vascular and Endovascular Surgery, University of Virginia, Charlottesville, VA.
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13
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Jash A, Howie HL, Hay AM, Luckey CJ, Hudson KE, Thomson PC, Ratcliffe SJ, Smolkin M, Zimring JC. Identification of multiple genetic loci associated with red blood cell alloimmunization in mice. Haematologica 2023; 108:905-908. [PMID: 36373252 PMCID: PMC9973466 DOI: 10.3324/haematol.2022.281767] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/10/2020] [Indexed: 11/11/2022] Open
Affiliation(s)
- Arijita Jash
- University of Virginia School of Medicine, Charlottesville VA; Carter Immunology Center, University of Virginia
| | | | - Ariel M Hay
- University of Virginia School of Medicine, Charlottesville VA; Carter Immunology Center, University of Virginia
| | | | - Krystalyn E Hudson
- Department of Pathology and Cell Biology, Columbia University Irving Medical Center, New York
| | - Peter C Thomson
- Sydney School of Veterinary Science, University of Sydney, Sydney, NSW
| | - Sarah J Ratcliffe
- University of Virginia, Public Health Sciences, Division of Biostatistics
| | - Mark Smolkin
- University of Virginia, Public Health Sciences, Division of Biostatistics
| | - James C Zimring
- University of Virginia School of Medicine, Charlottesville VA; Carter Immunology Center, University of Virginia.
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14
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Meyer MJ, Jameson SA, Gillig EJ, Aggarwal A, Ratcliffe SJ, Baldwin M, Singh KE, Clouse WD, Blank RS. Clinical implications of preoperative echocardiographic findings on cardiovascular outcomes following vascular surgery: An observational trial. PLoS One 2023; 18:e0280531. [PMID: 36656845 PMCID: PMC9851553 DOI: 10.1371/journal.pone.0280531] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/21/2022] [Accepted: 12/29/2022] [Indexed: 01/20/2023] Open
Abstract
INTRODUCTION Peripheral artery disease and cardiac disease are often comorbid conditions. Echocardiography is a diagnostic tool that can be performed preoperatively to risk stratify patients by a functional cardiac test. We hypothesized that ventricular dysfunction and valvular lesions were associated with an increased incidence of expanded major adverse cardiac events (Expanded MACE). METHODS AND MATERIALS Retrospective cohort study from 2011 to 2020 including all patients from a major academic center who had vascular surgery and an echocardiographic study within two years of the index procedure. RESULTS 813 patients were included in the study; a majority had a history of smoking (86%), an ASA score of 3 (65%), and were male (68%). Carotid endarterectomy was the most common surgery (24%) and the least common surgery was open abdominal aortic aneurysm repair (5%). We found no significant association between the echocardiographic findings of left ventricular dysfunction, right ventricular dysfunction, or valvular lesions and the postoperative development of Expanded MACE. CONCLUSIONS The preoperative echocardiographic findings of left ventricular dysfunction, right ventricular dysfunction and moderate to severe valvular lesions were not predictive of an increased incidence of postoperative Expanded MACE. We identified a significant association between RV dysfunction and post-operative dialysis that should be interpreted carefully due to the small number of outcomes. The transition from open to endovascular surgery and advances in perioperative management may have led to improved cardiovascular outcomes. TRIAL REGISTRATION Trial Registration: NCT04836702 (clinicaltrials.gov). https://www.google.com/search?client=firefox-b-d&q=NCT04836702.
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Affiliation(s)
- Matthew J. Meyer
- Department of Anesthesiology, University of Virginia School of Medicine, Charlottesville, VA, United States of America
- * E-mail:
| | - Slater A. Jameson
- Department of Anesthesiology, University of Virginia School of Medicine, Charlottesville, VA, United States of America
| | - Edward J. Gillig
- Department of Anesthesiology, Newton Wellesley Hospital, Newton, MA, United States of America
| | - Ankur Aggarwal
- Department of Surgery, Franciscan Physicians Network Vascular Surgeons, Indianapolis, IN, United States of America
| | - Sarah J. Ratcliffe
- Department of Public Health Sciences, University of Virginia School of Medicine, Charlottesville, VA, United States of America
| | - Mary Baldwin
- Department of Surgery, University of Virginia School of Medicine, Charlottesville, VA, United States of America
| | - Karen E. Singh
- Department of Anesthesiology, University of Virginia School of Medicine, Charlottesville, VA, United States of America
| | - W. Darrin Clouse
- Department of Surgery, University of Virginia School of Medicine, Charlottesville, VA, United States of America
| | - Randal S. Blank
- Department of Anesthesiology, University of Virginia School of Medicine, Charlottesville, VA, United States of America
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15
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Adkins BD, Mehta A, Selesky M, Vittitow S, Smolkin ME, Ratcliffe SJ, Luckey CJ. Somatic mutations show no clear association with red blood cell or human leukocyte antigen alloimmunization in de novo or therapy-related myelodysplastic syndrome. Transfusion 2022; 62:2470-2479. [PMID: 36278434 PMCID: PMC10866154 DOI: 10.1111/trf.17155] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/02/2022] [Revised: 09/23/2022] [Accepted: 09/25/2022] [Indexed: 12/13/2022]
Abstract
BACKGROUND Myelodysplastic syndrome (MDS) is a marrow failure disease. As patients often require chronic transfusion, many develop red blood cell (RBC) alloimmunization or immune-mediated platelet refractoriness. MDS represents a spectrum of diseases with specific categorizations and genetic abnormalities, and we set out to determine if these characteristics predispose patients to antibody formation. STUDY DESIGN AND METHODS A natural language search identified MDS patients with pre-transfusion testing from 2015 to 2020. Marrow reports, cytogenetic results, and next-generation sequencing panels were gathered. Transfusion history and testing were collected from the laboratory information system. RESULTS The group consisted of 226 biopsy-proven MDS patients. The prevalence of RBC alloimmunization was 11.1% (25 of 226). Half (23 of 46) of all RBC alloantibodies were against Rh (C, c, E, e) and Kell (K) antigens. There was a relative enrichment for JAK2 positivity among the RBC alloimmunized group. A total of 7.1% (16 of 226) of patients had immune-mediated platelet refractoriness and had increased transfusion requirements (p ≤ 0.01). No disease type or genetic abnormality was significantly associated with alloimmunization or immune-mediated platelet refractoriness. DISCUSSION While JAK2 specific mutations were enriched among RBC alloimmunized patients, this association failed to reach statistical significance in our single-center cohort. Further study using larger patient cohorts is warranted. Overall, this cohort of MDS patients had very similar RBC alloimmunization prevalence and anti-RBC antibody specificities as other recent literature. Our data reinforce the finding that MDS patients are at greater risk for alloimmunization and support the use of extended phenotype matching for these at-risk patients.
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Affiliation(s)
- Brian D Adkins
- University of Virginia Health System, Charlottesville, Virginia, USA
| | - Ajay Mehta
- University of Virginia Health System, Charlottesville, Virginia, USA
| | - Margaret Selesky
- University of Virginia Health System, Charlottesville, Virginia, USA
| | - Stephany Vittitow
- University of Virginia Health System, Charlottesville, Virginia, USA
| | - Mark E Smolkin
- University of Virginia Health System, Charlottesville, Virginia, USA
| | - Sarah J Ratcliffe
- University of Virginia Health System, Charlottesville, Virginia, USA
| | - Chance J Luckey
- University of Virginia Health System, Charlottesville, Virginia, USA
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Ulrich CM, Ratcliffe SJ, Zhou Q, Huang L, Hochheimer C, Gordon T, Knafl K, Miller V, Naylor MD, Schapira MM, Richmond TS, Grady C, Mao JJ. Association of Perceived Benefit or Burden of Research Participation With Participants' Withdrawal From Cancer Clinical Trials. JAMA Netw Open 2022; 5:e2244412. [PMID: 36449287 PMCID: PMC9713607 DOI: 10.1001/jamanetworkopen.2022.44412] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/03/2022] Open
Abstract
IMPORTANCE Attrition in cancer clinical trials (CCTs) can lead to systematic bias, underpowered analyses, and a loss of scientific knowledge to improve treatments. Little attention has focused on retention, especially the role of perceived benefits and burdens, after participants have experienced the trial. OBJECTIVES To examine the association between patients' perceived benefits and burdens of research participation and CCT retention. DESIGN, SETTING, AND PARTICIPANTS This survey study was conducted at a National Cancer Institute-designated comprehensive cancer center in the Northeast region of the US. The sample included adult patients with a cancer diagnosis participating in cancer therapeutic trials. Data were collected from September 2015 to June 2019. Analysis of study data was ongoing since November 2019 through October 2022. EXPOSURES Self-reported validated survey instrument with a list of 22 benefits and 23 burdens of research participation that can be rated by patients with a 5-point Likert scale ranging from 1 (strongly disagree) to 5 (strongly agree). MAIN OUTCOMES AND MEASURES A primary outcome was actual withdrawal from the CCT, and a composite outcome was composite withdrawal that included both actual withdrawal and thoughts of withdrawing. Bivariate and multivariable logistic regressions were used. RESULTS Among the 334 participants in the sample, the mean (SD) age was 61.9 (11.5) years and 174 women (52.1%) were included. Top-cited benefits included both aspirational and action-oriented goals, including helping others (94.2%), contributing to society (90.3%), being treated respectfully (86.2%), and hoping for a cure (86.0%). Worry over receiving a placebo (61.3%), rearranging one's life (41.9%), and experiencing bothersome adverse effects (41.6%) were notable burdens. An increased burden score was associated with a higher probability of actual withdrawal (adjusted odds ratio [OR], 1.86; 95% CI, 1.1-3.17; P = .02) or composite withdrawal (adjusted OR, 3.44; 95% CI, 2.09-5.67; P < .001). An increased benefit score was associated with lower composite withdrawal (adjusted OR, 0.40; 95% CI, 0.24-0.66; P < .001). For participants who reported the benefits as being equal to or greater than the burdens, 13.4% withdrew. For those who perceived the benefits as being less than the burdens, 33.3% withdrew (adjusted OR, 3.38; 95% CI, 1.13-10.14; P = .03). The risk of withdrawal was even higher for the composite outcome (adjusted OR, 7.70; 95% CI, 2.76-21.48; P < .001). CONCLUSIONS AND RELEVANCE This survey study found that patients perceived important benefits from CCT participation, and this perception was associated with trial retention, even among those who also perceived substantial burdens. A broader dialogue among stakeholders can inform an ethical and patient-centric focus on benefits throughout the course of a CCT to increase retention.
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Affiliation(s)
- Connie M. Ulrich
- Department of Biobehavioral Health Sciences, University of Pennsylvania School of Nursing, Philadelphia
| | | | - Qiuping Zhou
- Department of Policy, Population and Systems Community, The George Washington University, Washington, DC
| | - Liming Huang
- Office of Nursing Research, University of Pennsylvania School of Nursing, Philadelphia
| | - Camille Hochheimer
- Center for Innovative Design and Analysis, Colorado School of Public Health, Aurora
| | - Thomas Gordon
- Department of Psychology, University of Massachusetts Lowell, Lowell
| | - Kathleen Knafl
- University of North Carolina at Chapel Hill, Chapel Hill
| | - Victoria Miller
- Department of Pediatrics, Children’s Hospital of Philadelphia, Philadelphia, Pennsylvania
| | - Mary D. Naylor
- Department of Biobehavioral Health Sciences, University of Pennsylvania School of Nursing, Philadelphia
| | - Marilyn M. Schapira
- Perelman School of Medicine, University of Pennsylvania, Philadelphia
- Center for Health Equity Research and Promotion, Philadelphia Veterans Affairs Medical Center, Philadelphia, PA
| | - Therese S. Richmond
- Department of Biobehavioral Health Sciences, University of Pennsylvania School of Nursing, Philadelphia
| | - Christine Grady
- Department of Bioethics, National Institutes of Health, Bethesda, Maryland
| | - Jun J. Mao
- Integrative Medicine, Bendheim Integrative Medicine Center, Memorial Sloan Kettering, New York, New York
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17
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Englund EK, Langham MC, Wehrli FW, Fanning MJ, Khan Z, Schmitz KH, Ratcliffe SJ, Floyd TF, Mohler ER. Impact of supervised exercise on skeletal muscle blood flow and vascular function measured with MRI in patients with peripheral artery disease. Am J Physiol Heart Circ Physiol 2022; 323:H388-H396. [PMID: 35802515 PMCID: PMC9359664 DOI: 10.1152/ajpheart.00633.2021] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/29/2021] [Revised: 06/21/2022] [Accepted: 07/07/2022] [Indexed: 11/22/2022]
Abstract
Supervised exercise is a common therapeutic intervention for patients with peripheral artery disease (PAD), however, the mechanism underlying the improvement in claudication symptomatology is not completely understood. The hypothesis that exercise improves microvascular blood flow is herein tested via temporally resolved magnetic resonance imaging (MRI) measurement of blood flow and oxygenation dynamics during reactive hyperemia in the leg with the lower ankle-brachial index. One hundred and forty-eight subjects with PAD were prospectively assigned to standard medical care or 3 mo of supervised exercise therapy. Before and after the intervention period, subjects performed a graded treadmill walking test, and MRI data were collected with Perfusion, Intravascular Venous Oxygen saturation, and T2* (PIVOT), a method that simultaneously quantifies microvascular perfusion, as well as relative oxygenation changes in skeletal muscle and venous oxygen saturation in a large draining vein. The 3-mo exercise intervention was associated with an improvement in peak walking time (64% greater in those randomized to the exercise group at follow-up, P < 0.001). Significant differences were not observed in the MRI measures between the subjects randomized to exercise therapy versus standard medical care based on an intention-to-treat analysis. However, the peak postischemia perfusion averaged across the leg between baseline and follow-up visits increased by 10% (P = 0.021) in participants that were adherent to the exercise protocol (completed >80% of prescribed exercise visits). In this cohort of adherent exercisers, there was no difference in the time to peak perfusion or oxygenation metrics, suggesting that there was no improvement in microvascular function nor changes in tissue metabolism in response to the 3-mo exercise intervention.NEW & NOTEWORTHY Supervised exercise interventions can improve symptomatology in patients with peripheral artery disease, but the underlying mechanism remains unclear. Here, MRI was used to evaluate perfusion, relative tissue oxygenation, and venous oxygen saturation in response to cuff-induced ischemia. Reactive hyperemia responses were measured before and after 3 mo of randomized supervised exercise therapy or standard medical care. Those participants who were adherent to the exercise regimen had a significant improvement in peak perfusion.
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Affiliation(s)
- Erin K Englund
- Department of Radiology, University of Pennsylvania, Philadelphia, Pennsylvania
- Department of Radiology, University of Colorado Anschutz Medical Campus, Aurora, Colorado
| | - Michael C Langham
- Department of Radiology, University of Pennsylvania, Philadelphia, Pennsylvania
| | - Felix W Wehrli
- Department of Radiology, University of Pennsylvania, Philadelphia, Pennsylvania
| | - Molly J Fanning
- Department of Medicine, University of Pennsylvania, Philadelphia, Pennsylvania
| | - Zeeshan Khan
- Department of Medicine, University of Pennsylvania, Philadelphia, Pennsylvania
| | - Kathryn H Schmitz
- Department of Public Health Sciences, Penn State University, University Park, Pennsylvania
| | - Sarah J Ratcliffe
- Department of Biostatistics, University of Virginia, Charlottesville, Virginia
| | - Thomas F Floyd
- Department of Anesthesiology and Pain Management, University of Texas Southwestern, Dallas, Texas
| | - Emile R Mohler
- Department of Medicine, University of Pennsylvania, Philadelphia, Pennsylvania
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18
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Jones S, Bradwell KR, Chan LE, Olson-Chen C, Tarleton J, Wilkins KJ, Qin Q, Faherty EG, Lau YK, Xie C, Kao YH, Liebman MN, Mariona F, Challa A, Li L, Ratcliffe SJ, McMurry JA, Haendel MA, Patel RC, Hill EL. Who is pregnant? defining real-world data-based pregnancy episodes in the National COVID Cohort Collaborative (N3C). medRxiv 2022:2022.08.04.22278439. [PMID: 35982668 PMCID: PMC9387155 DOI: 10.1101/2022.08.04.22278439] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
Abstract
Objective To define pregnancy episodes and estimate gestational aging within electronic health record (EHR) data from the National COVID Cohort Collaborative (N3C). Materials and Methods We developed a comprehensive approach, named H ierarchy and rule-based pregnancy episode I nference integrated with P regnancy P rogression S ignatures (HIPPS) and applied it to EHR data in the N3C from 1 January 2018 to 7 April 2022. HIPPS combines: 1) an extension of a previously published pregnancy episode algorithm, 2) a novel algorithm to detect gestational aging-specific signatures of a progressing pregnancy for further episode support, and 3) pregnancy start date inference. Clinicians performed validation of HIPPS on a subset of episodes. We then generated three types of pregnancy cohorts based on the level of precision for gestational aging and pregnancy outcomes for comparison of COVID-19 and other characteristics. Results We identified 628,165 pregnant persons with 816,471 pregnancy episodes, of which 52.3% were live births, 24.4% were other outcomes (stillbirth, ectopic pregnancy, spontaneous abortions), and 23.3% had unknown outcomes. We were able to estimate start dates within one week of precision for 431,173 (52.8%) episodes. 66,019 (8.1%) episodes had incident COVID-19 during pregnancy. Across varying COVID-19 cohorts, patient characteristics were generally similar though pregnancy outcomes differed. Discussion HIPPS provides support for pregnancy-related variables based on EHR data for researchers to define pregnancy cohorts. Our approach performed well based on clinician validation. Conclusion We have developed a novel and robust approach for inferring pregnancy episodes and gestational aging that addresses data inconsistency and missingness in EHR data.
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Affiliation(s)
- Sara Jones
- Office of Data Science and Emerging Technologies, National Institute of Allergy and Infectious Diseases, National Institutes of Health, Rockville, MD
| | | | - Lauren E Chan
- College of Public Health and Human Sciences, Oregon State University, Corvallis, OR
| | - Courtney Olson-Chen
- Department of Obstetrics and Gynecology, University of Rochester Medical Center, Rochester, NY
| | - Jessica Tarleton
- Department of Obstetrics and Gynecology, Medical University of South Carolina, Charleston, SC
| | - Kenneth J Wilkins
- Biostatistics Program, Office of the Director, National Institute of Diabetes and Digestive and Kidney Diseases, National Institutes of Health, Bethesda, MD
| | - Qiuyuan Qin
- Department of Public Health Sciences, University of Rochester Medical Center, Rochester, NY
| | | | | | - Catherine Xie
- Department of Public Health Sciences, University of Rochester Medical Center, Rochester, NY
| | | | | | - Federico Mariona
- Beaumont Hospital, Dearborn, MI
- Wayne State University, Detroit, MI
| | - Anup Challa
- Department of Chemical and Biomolecular Engineering, Vanderbilt University, Nashville, TN
| | | | - Sarah J Ratcliffe
- Department of Public Health Sciences, University of Virginia, Charlottesville, VA
| | - Julie A McMurry
- Department of Biomedical Informatics, University of Colorado, Anschutz Medical Campus, Aurora, CO
| | - Melissa A Haendel
- Department of Biomedical Informatics, University of Colorado, Anschutz Medical Campus, Aurora, CO
| | - Rena C Patel
- Department of Medicine and Global Health, University of Washington, Seattle, WA
| | - Elaine L Hill
- Department of Obstetrics and Gynecology, University of Rochester Medical Center, Rochester, NY
- Department of Public Health Sciences, University of Rochester Medical Center, Rochester, NY
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19
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Gadrey SM, Mohanty P, Haughey SP, Jacobsen BA, Dubester KJ, Webb KM, Kowalski RL, Dreicer JJ, Andris RT, Clark MT, Moore CC, Holder A, Kamaleswaran R, Ratcliffe SJ, Moorman JR. Overt and occult hypoxemia in patients hospitalized with novel coronavirus disease 2019. medRxiv 2022:2022.06.14.22276166. [PMID: 35734082 PMCID: PMC9216725 DOI: 10.1101/2022.06.14.22276166] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 02/04/2023]
Abstract
Background Progressive hypoxemia is the predominant mode of deterioration in COVID-19. Among hypoxemia measures, the ratio of the partial pressure of arterial oxygen to the fraction of inspired oxygen (P/F ratio) has optimal construct validity but poor availability because it requires arterial blood sampling. Pulse oximetry reports oxygenation continuously, but occult hypoxemia can occur in Black patients because the technique is affected by skin color. Oxygen dissociation curves allow non-invasive estimation of P/F ratios (ePFR) but this approach remains unproven. Research Question Can ePFRs measure overt and occult hypoxemia? Study Design and methods We retrospectively studied COVID-19 hospital encounters (n=5319) at two academic centers (University of Virginia [UVA] and Emory University). We measured primary outcomes (death or ICU transfer within 24 hours), ePFR, conventional hypoxemia measures, baseline predictors (age, sex, race, comorbidity), and acute predictors (National Early Warning Score (NEWS) and Sepsis-3). We updated predictors every 15 minutes. We assessed predictive validity using adjusted odds ratios (AOR) and area under receiver operating characteristics curves (AUROC). We quantified disparities (Black vs non-Black) in empirical cumulative distributions using the Kolmogorov-Smirnov (K-S) two-sample test. Results Overt hypoxemia (low ePFR) predicted bad outcomes (AOR for a 100-point ePFR drop: 2.7 [UVA]; 1.7 [Emory]; p<0.01) with better discrimination (AUROC: 0.76 [UVA]; 0.71 [Emory]) than NEWS (AUROC: 0.70 [UVA]; 0.70 [Emory]) or Sepsis-3 (AUROC: 0.68 [UVA]; 0.65 [Emory]). We found racial differences consistent with occult hypoxemia. Black patients had better apparent oxygenation (K-S distance: 0.17 [both sites]; p<0.01) but, for comparable ePFRs, worse outcomes than other patients (AOR: 2.2 [UVA]; 1.2 [Emory], p<0.01). Interpretation The ePFR was a valid measure of overt hypoxemia. In COVID-19, it may outperform multi-organ dysfunction models like NEWS and Sepsis-3. By accounting for biased oximetry as well as clinicians’ real-time responses to it (supplemental oxygen adjustment), ePFRs may enable statistical modelling of racial disparities in outcomes attributable to occult hypoxemia.
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Affiliation(s)
- Shrirang M Gadrey
- University of Virginia School of Medicine, Charlottesville; and Emory University, Atlanta, USA
| | - Piyus Mohanty
- University of Virginia School of Medicine, Charlottesville; and Emory University, Atlanta, USA
| | - Sean P Haughey
- University of Virginia School of Medicine, Charlottesville; and Emory University, Atlanta, USA
| | - Beck A Jacobsen
- University of Virginia School of Medicine, Charlottesville; and Emory University, Atlanta, USA
| | - Kira J Dubester
- University of Virginia School of Medicine, Charlottesville; and Emory University, Atlanta, USA
| | - Katherine M Webb
- University of Virginia School of Medicine, Charlottesville; and Emory University, Atlanta, USA
| | - Rebecca L Kowalski
- University of Virginia School of Medicine, Charlottesville; and Emory University, Atlanta, USA
| | - Jessica J Dreicer
- University of Virginia School of Medicine, Charlottesville; and Emory University, Atlanta, USA
| | - Robert T Andris
- University of Virginia School of Medicine, Charlottesville; and Emory University, Atlanta, USA
| | - Matthew T Clark
- University of Virginia School of Medicine, Charlottesville; and Emory University, Atlanta, USA
| | - Christopher C Moore
- University of Virginia School of Medicine, Charlottesville; and Emory University, Atlanta, USA
| | - Andre Holder
- University of Virginia School of Medicine, Charlottesville; and Emory University, Atlanta, USA
| | - Rishi Kamaleswaran
- University of Virginia School of Medicine, Charlottesville; and Emory University, Atlanta, USA
| | - Sarah J Ratcliffe
- University of Virginia School of Medicine, Charlottesville; and Emory University, Atlanta, USA
| | - J Randall Moorman
- University of Virginia School of Medicine, Charlottesville; and Emory University, Atlanta, USA
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20
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Haywood NS, Ratcliffe SJ, Zheng X, Mao J, Farivar B, Tracci MC, Malas MB, Goodney PP, Clouse WD. Operative and Long-term Outcomes of Combined and Staged Carotid Endarterectomy and Coronary Bypass: A Medicare-linked VQI/VISION Analysis. J Vasc Surg 2022. [DOI: 10.1016/j.jvs.2022.03.789] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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21
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Wang T, Ratcliffe SJ, Guo W. Time-to-Event Analysis with Unknown Time Origins via Longitudinal Biomarker Registration. J Am Stat Assoc 2022; 118:1968-1983. [PMID: 37771511 PMCID: PMC10530746 DOI: 10.1080/01621459.2021.2023552] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/11/2020] [Accepted: 12/22/2021] [Indexed: 10/19/2022]
Abstract
In observational studies, the time origin of interest for time-to-event analysis is often unknown, such as the time of disease onset. Existing approaches to estimating the time origins are commonly built on extrapolating a parametric longitudinal model, which rely on rigid assumptions that can lead to biased inferences. In this paper, we introduce a flexible semiparametric curve registration model. It assumes the longitudinal trajectories follow a flexible common shape function with person-specific disease progression pattern characterized by a random curve registration function, which is further used to model the unknown time origin as a random start time. This random time is used as a link to jointly model the longitudinal and survival data where the unknown time origins are integrated out in the joint likelihood function, which facilitates unbiased and consistent estimation. Since the disease progression pattern naturally predicts time-to-event, we further propose a new functional survival model using the registration function as a predictor of the time-to-event. The asymptotic consistency and semiparametric efficiency of the proposed models are proved. Simulation studies and two real data applications demonstrate the effectiveness of this new approach.
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Affiliation(s)
- Tianhao Wang
- Department of Neurological Sciences, and Faculty Statistician, Rush Alzheimer's Disease Center, Rush University Medical Center, Chicago, IL 60612
| | - Sarah J Ratcliffe
- Division of Biostatistics, Department of Public Health Sciences, University of Virginia School of Medicine, Charlottesville, VA 22908
| | - Wensheng Guo
- Department of Biostatistics, Epidemiology and Informatics, University of Pennsylvania Perelman School of Medicine, Philadelphia, PA 19104
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22
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Homewood LN, Dave ED, Ali R, Mallawaarachchi IV, Ratcliffe SJ, Balasubramani G, Lee TT. Risk Factors Associated with Adnexal Torsion after Hysterectomy. J Minim Invasive Gynecol 2022; 29:250-256. [PMID: 34400354 PMCID: PMC8837652 DOI: 10.1016/j.jmig.2021.08.006] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/18/2021] [Revised: 07/22/2021] [Accepted: 08/09/2021] [Indexed: 02/03/2023]
Abstract
STUDY OBJECTIVE To identify preoperative and intraoperative risk factors for adnexal torsion after hysterectomy, and to estimate the incidence of the disease in the modern-day era of laparoscopic surgery. DESIGN Retrospective nested case-control study. SETTING Large urban medical system. PATIENTS Eighty-nine female patients ages 17 to 51. INTERVENTIONS Patients underwent ovarian-sparing hysterectomy. MEASUREMENTS AND MAIN RESULTS The estimated incidence of ovarian torsion after hysterectomy was 0.5% (46/8538 ovarian-sparing hysterectomies). The following variables were found to be associated with adnexal torsion after hysterectomy in an adjusted logistic regression: laparoscopic or laparoscopic-assisted approach to hysterectomy vs any other approach (odds ratio [OR], 3.36; 95% confidence interval [CI], 0.86-13.23); younger age at the time of hysterectomy (17-40 years) vs older age (41-51 years) (OR, 3.45; 95% CI, 1.33-8.97); and a gynecologic history significant for endometriosis (OR, 4.07; 95% CI, 1.04-15.88). CONCLUSION There is an association between laparoscopic approach to hysterectomy, younger age at time of hysterectomy, and a history of endometriosis with subsequent risk of adnexal torsion. Providers should have a heightened index of suspicion for adnexal torsion after hysterectomy in patients presenting with acute-onset abdominal pain who underwent laparoscopic hysterectomy at a younger age.
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Affiliation(s)
- Laura N. Homewood
- Department of Obstetrics and Gynecology, University of Virginia Health, Charlottesville, VA
| | - Eesha D. Dave
- Department of Obstetrics, Gynecology and Reproductive Sciences, University of Pittsburgh Medical Center, Pittsburgh, PA
| | - Riyas Ali
- Department of Obstetrics, Gynecology and Reproductive Sciences, University of Pittsburgh Medical Center, Pittsburgh, PA
| | - Indika V. Mallawaarachchi
- Division of Biostatistics, Department of Public Health Sciences, School of Medicine, University of Virginia, Charlottesville, VA
| | - Sarah J. Ratcliffe
- Division of Biostatistics, Department of Public Health Sciences, School of Medicine, University of Virginia, Charlottesville, VA
| | - Goundappa.K Balasubramani
- Department of Epidemiology, and Clinical and Translational Science Institute, Graduate School of Public Health, University of Pittsburgh, Pittsburgh, PA
| | - Ted T.M. Lee
- Department of Obstetrics, Gynecology and Reproductive Sciences, University of Pittsburgh Medical Center, Pittsburgh, PA
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23
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Foglia EE, Kirpalani H, Ratcliffe SJ, Davis PG, Thio M, Hummler H, Lista G, Cavigioli F, Schmölzer GM, Keszler M, Te Pas AB. Sustained Inflation Versus Intermittent Positive Pressure Ventilation for Preterm Infants at Birth: Respiratory Function and Vital Sign Measurements. J Pediatr 2021; 239:150-154.e1. [PMID: 34453917 PMCID: PMC8604776 DOI: 10.1016/j.jpeds.2021.08.038] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/30/2021] [Revised: 07/30/2021] [Accepted: 08/19/2021] [Indexed: 11/18/2022]
Abstract
OBJECTIVE To characterize respiratory function monitor (RFM) measurements of sustained inflations and intermittent positive pressure ventilation (IPPV) delivered noninvasively to infants in the Sustained Aeration of Infant Lungs (SAIL) trial and to compare vital sign measurements between treatment arms. STUDY DESIGN We analyzed RFM data from SAIL participants at 5 trial sites. We assessed tidal volumes, rates of airway obstruction, and mask leak among infants allocated to sustained inflations and IPPV, and we compared pulse rate and oxygen saturation measurements between treatment groups. RESULTS Among 70 SAIL participants (36 sustained inflations, 34 IPPV) with RFM measurements, 40 (57%) were spontaneously breathing prior to the randomized intervention. The median expiratory tidal volume of sustained inflations administered was 5.3 mL/kg (IQR 1.1-9.2). Significant mask leak occurred in 15% and airway obstruction occurred during 17% of sustained inflations. Among 34 control infants, the median expiratory tidal volume of IPPV inflations was 4.3 mL/kg (IQR 1.3-6.6). Mask leak was present in 3%, and airway obstruction was present in 17% of IPPV inflations. There were no significant differences in pulse rate or oxygen saturation measurements between groups at any point during resuscitation. CONCLUSION Expiratory tidal volumes of sustained inflations and IPPV inflations administered in the SAIL trial were highly variable in both treatment arms. Vital sign values were similar between groups throughout resuscitation. Sustained inflation as operationalized in the SAIL trial was not superior to IPPV to promote lung aeration after birth in this study subgroup. TRIAL REGISTRATION Clinicaltrials.gov: NCT02139800.
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Affiliation(s)
- Elizabeth E Foglia
- Division of Neonatology, Department of Pediatrics, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA.
| | - Haresh Kirpalani
- Division of Neonatology, Department of Pediatrics, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA
| | - Sarah J Ratcliffe
- Division of Biostatistics, Department of Public Health Sciences, University of Virginia, Charlottesville, VA
| | - Peter G Davis
- Newborn Research Center, The Royal Women's Hospital and The University of Melbourne, Victoria, Australia
| | - Marta Thio
- Newborn Research Center, The Royal Women's Hospital and The University of Melbourne, Victoria, Australia
| | | | - Gianluca Lista
- Department of Pediatrics, NICU, Ospedale dei Bambini V.Buzzi ASST-FBF-Sacco, Milan, Italy
| | - Francesco Cavigioli
- Department of Pediatrics, NICU, Ospedale dei Bambini V.Buzzi ASST-FBF-Sacco, Milan, Italy
| | - Georg M Schmölzer
- Department of Pediatrics, University of Alberta, Edmonton, Alberta, Canada
| | - Martin Keszler
- Department of Pediatrics, Alpert Medical School of Brown University, Women and Infants Hospital of Rhode Island, Providence, RI
| | - Arjan B Te Pas
- Department of Pediatrics, Leiden University Medical Center, Leiden, The Netherlands
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24
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Marasini B, Vyas HK, Lakhashe SK, Hariraju D, Akhtar A, Ratcliffe SJ, Ruprecht RM. Mucosal AIDS virus transmission is enhanced by antiviral IgG isolated early in infection. AIDS 2021; 35:2423-2432. [PMID: 34402452 PMCID: PMC8631165 DOI: 10.1097/qad.0000000000003050] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/29/2021] [Revised: 07/01/2021] [Accepted: 08/03/2021] [Indexed: 11/25/2022]
Abstract
OBJECTIVE Antibody-dependent enhancement (ADE) affects host-virus dynamics in fundamentally different ways: i) enhancement of initial virus acquisition, and/or ii) increased disease progression/severity. Here we address the question whether anti-HIV-1 antibodies can enhance initial infection. While cell-culture experiments hinted at this possibility, in-vivo proof remained elusive. DESIGN We used passive immunization in nonhuman primates challenged with simian-human immunodeficiency virus (SHIV), a chimera expressing HIV-1 envelope. We purified IgG from rhesus monkeys with early-stage SHIV infection - before cross-neutralizing anti-HIV-1 antibodies had developed - and screened for maximal complement-mediated antibody-dependent enhancement (C'-ADE) of viral replication with a SHIV strain phylogenetically distinct from that harbored by IgG donor macaques. IgG fractions with maximal C'-ADE but lacking neutralization were combined to yield enhancing anti-SHIV IgG (enSHIVIG). RESULTS We serially enrolled naive macaques (Group 1) to determine the minimal and 50% animal infectious doses required to establish persistent infection after intrarectal SHIV challenge. The first animal was inoculated with a 1 : 10 virus-stock dilution; after this animal's viral RNA load was >104copies/ml, the next macaque was challenged with 10x less virus, a process repeated until viremia no longer ensued. Group 2 was pretreated intravenously with enSHIVIG 24 h before SHIV challenge. Overall, Group 2 macaques required 3.4-fold less virus compared to controls (P = 0.002). This finding is consistent with enhanced susceptibility of the passively immunized animals to mucosal SHIV challenge. CONCLUSION These passive immunization data give proof of IgG-mediated enhanced virus acquisition after mucosal exposure - a potential concern for antibody-based AIDS vaccine development.
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Affiliation(s)
- Bishal Marasini
- University of Louisiana at Lafayette, New Iberia Research Center, New Iberia
- Department of Biology, University of Louisiana at Lafayette, Lafayette, Louisiana
- Texas Biomedical Research Institute, San Antonio, Texas
| | | | | | - Dinesh Hariraju
- University of Louisiana at Lafayette, New Iberia Research Center, New Iberia
- Texas Biomedical Research Institute, San Antonio, Texas
| | - Akil Akhtar
- Texas Biomedical Research Institute, San Antonio, Texas
| | | | - Ruth M. Ruprecht
- University of Louisiana at Lafayette, New Iberia Research Center, New Iberia
- Department of Biology, University of Louisiana at Lafayette, Lafayette, Louisiana
- Texas Biomedical Research Institute, San Antonio, Texas
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Lattimore CM, Kane WJ, Fleming MA, Martin AN, Mehaffey JH, Smolkin ME, Ratcliffe SJ, Zaydfudim VM, Showalter SL, Hedrick TL. Disparities in telemedicine utilization among surgical patients during COVID-19. PLoS One 2021; 16:e0258452. [PMID: 34624059 PMCID: PMC8500431 DOI: 10.1371/journal.pone.0258452] [Citation(s) in RCA: 21] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/23/2021] [Accepted: 09/27/2021] [Indexed: 11/19/2022] Open
Abstract
Background Telemedicine has been rapidly adopted in the wake of the COVID-19 pandemic. There is limited work surrounding demographic and socioeconomic disparities that may exist in telemedicine utilization. This study aimed to examine demographic and socioeconomic differences in surgical patient telemedicine usage during the COVID-19 pandemic. Methods Department of Surgery outpatients seen from July 1, 2019 to May 31, 2020 were stratified into three visit groups: pre-COVID-19 in-person, COVID-19 in-person, or COVID-19 telemedicine. Generalized linear models were used to examine associations of sex, race/ethnicity, Distressed Communities Index (DCI) scores, MyChart activation, and insurance status with telemedicine usage during the COVID-19 pandemic. Results 14,792 patients (median age 60, female [57.0%], non-Hispanic White [76.4%]) contributed to 21,980 visits. Compared to visits before the pandemic, telemedicine visits during COVID-19 were more likely to be with patients from the least socioeconomically distressed communities (OR, 1.31; 95% CI, 1.08,1.58; P = 0.005), with an activated MyChart (OR, 1.38; 95% CI, 1.17–1.64; P < .001), and with non-government or commercial insurance (OR, 2.33; 95% CI, 1.84–2.94; P < .001). Adjusted comparison of telemedicine visits to in person visits during COVID-19 revealed telemedicine users were more likely to be female (OR, 1.38, 95% CI, 1.10–1.73; P = 0.005) and pay with non-government or commercial insurance (OR, 2.77; 95% CI, 1.85–4.16; P < .001). Conclusions During the first three months of the COVID-19 pandemic, telemedicine was more likely utilized by female patients and those without government or commercial insurance compared to patients who used in-person visits. Interventions using telemedicine to improve health care access might consider such differences in utilization.
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Affiliation(s)
- Courtney M. Lattimore
- Department of Surgery, University of Virginia Health System, Charlottesville, Virginia, United States of America
| | - William J. Kane
- Department of Surgery, University of Virginia Health System, Charlottesville, Virginia, United States of America
| | - Mark A. Fleming
- Department of Surgery, University of Virginia Health System, Charlottesville, Virginia, United States of America
| | - Allison N. Martin
- Department of Surgical Oncology, The University of Texas MD Anderson Cancer Center, Houston, Texas, United States of America
| | - J. Hunter Mehaffey
- Department of Surgery, University of Virginia Health System, Charlottesville, Virginia, United States of America
| | - Mark E. Smolkin
- Division of Biostatistics, Department of Public Health Sciences, School of Medicine, University of Virginia, Charlottesville, Virginia, United States of America
| | - Sarah J. Ratcliffe
- Division of Biostatistics, Department of Public Health Sciences, School of Medicine, University of Virginia, Charlottesville, Virginia, United States of America
| | - Victor M. Zaydfudim
- Department of Surgery, University of Virginia Health System, Charlottesville, Virginia, United States of America
| | - Shayna L. Showalter
- Department of Surgery, University of Virginia Health System, Charlottesville, Virginia, United States of America
| | - Traci L. Hedrick
- Department of Surgery, University of Virginia Health System, Charlottesville, Virginia, United States of America
- * E-mail:
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Vargas PA, McCracken EKE, Mallawaarachchi I, Ratcliffe SJ, Argo C, Pelletier S, Zaydfudim VM, Oberholzer J, Goldaracena N. Donor Morbidity Is Equivalent Between Right and Left Hepatectomy for Living Liver Donation: A Meta-Analysis. Liver Transpl 2021; 27:1412-1423. [PMID: 34053171 DOI: 10.1002/lt.26183] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/30/2020] [Revised: 04/15/2021] [Accepted: 05/14/2021] [Indexed: 12/14/2022]
Abstract
Maximizing liver graft volume benefits the living donor liver recipient. Whether maximizing graft volume negatively impacts living donor recovery and outcomes remains controversial. Patient randomization between right and left hepatectomy has not been possible due to anatomic constraints; however, a number of published, nonrandomized observational studies summarize donor outcomes between 2 anatomic living donor hepatectomies. This meta-analysis compares donor-specific outcomes after right versus left living donor hepatectomy. Systematic searches were performed via PubMed, Cochrane, ResearchGate, and Google Scholar databases to identify relevant studies between January 2005 and November 2019. The primary outcomes compared overall morbidity and incidence of severe complications (Clavien-Dindo >III) between right and left hepatectomy in donors after liver donation. Random effects meta-analysis was performed to derive summary risk estimates of outcomes. A total of 33 studies (3 prospective and 30 retrospective cohort) were used to identify 7649 pooled patients (5993 right hepatectomy and 1027 left hepatectomy). Proportion of donors who developed postoperative complications did not significantly differ after right hepatectomy (0.33; 95% confidence interval [CI], 0.27-0.40) and left hepatectomy (0.23; 95% CI, 0.17-0.29; P = 0.19). The overall risk ratio (RR) did not differ between right and left hepatectomy (RR, 1.16; 95% CI, 0.83-1.63; P = 0.36). The relative risk for a donor to develop severe complications showed no differences by hepatectomy side (Incidence rate ratio, 0.97; 95% CI, 0.67-1.40; P = 0.86). There is no evidence that the overall morbidity differs between right and left lobe donors. Publication bias reflects institutional and surgeon variation. A prospective, standardized, multi-institutional study would help quantify the burden of donor complications after liver donation.
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Affiliation(s)
- Paola A Vargas
- Division of Transplant Surgery, Department of Surgery, University of Virginia Health System, Charlottesville, VA
| | - Emily K E McCracken
- Division of Transplant Surgery, Department of Surgery, University of Virginia Health System, Charlottesville, VA
| | - Indika Mallawaarachchi
- Division of Biostatistics, Department of Public Health Sciences, University of Virginia, School of Medicine, Charlottesville, VA
| | - Sarah J Ratcliffe
- Division of Biostatistics, Department of Public Health Sciences, University of Virginia, School of Medicine, Charlottesville, VA
| | - Curtis Argo
- Division of Gastroenterology, Department of Medicine, University of Virginia Health System, Charlottesville, VA
| | - Shawn Pelletier
- Division of Transplant Surgery, Department of Surgery, University of Virginia Health System, Charlottesville, VA
| | - Victor M Zaydfudim
- Division of Surgical Oncology, Department of Surgery, University of Virginia Health System, Charlottesville, VA
| | - Jose Oberholzer
- Division of Transplant Surgery, Department of Surgery, University of Virginia Health System, Charlottesville, VA
| | - Nicolas Goldaracena
- Division of Transplant Surgery, Department of Surgery, University of Virginia Health System, Charlottesville, VA
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Yadav A, Kossenkov AV, Showe LC, Ratcliffe SJ, Choi GH, Montaner LJ, Tebas P, Shaw PA, Collman RG. Lack of Atorvastatin Effect on Monocyte Gene Expression and Inflammatory Markers in HIV-1-infected ART-suppressed Individuals at Risk of non-AIDS Comorbidities. Pathog Immun 2021; 6:1-26. [PMID: 34447895 PMCID: PMC8382234 DOI: 10.20411/pai.v6i2.461] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/19/2021] [Accepted: 07/17/2021] [Indexed: 11/23/2022] Open
Abstract
BACKGROUND Many people living with HIV have persistent monocyte activation despite viral suppression by antiretroviral therapy (ART), which contributes to non-AIDS complications including neurocognitive and other disorders. Statins have immunomodulatory properties that might be beneficial by reducing monocyte activation. METHODS We previously characterized monocyte gene expression and inflammatory markers in 11 HIV-positive individuals on long-term ART (HIV/ART) at risk for non-AIDS complications because of low nadir CD4+ counts (median 129 cells/uL) and elevated hsCRP. Here, these individuals participated in a double-blind, randomized, placebo-controlled crossover study of 12 weeks of atorvastatin treatment. Monocyte surface markers were assessed by flow cytometry, plasma mediators by ELISA and Luminex, and monocyte gene expression by microarray analysis. RESULTS Among primary outcome measures, 12 weeks of atorvastatin treatment led to an unexpected increase in CCR2+ monocytes (P=0.04), but did not affect CD16+ or CD163+ monocytes, nor levels in plasma of CCL2/MCP-1 or sCD14. Among secondary outcomes, atorvastatin treatment was associated with decreased plasma hsCRP (P=0.035) and IL-2R (P=0.012). Treatment was also associated with increased total CD14+ monocytes (P=0.015), and increased plasma CXCL9 (P=0.003) and IL-12 (P<0.001). Comparable results were seen in a subgroup that had inflammatory marker elevations at baseline. Atorvastatin treatment did not significantly alter monocyte gene expression or normalize aberrant baseline transcriptional patterns. CONCLUSIONS In this study of aviremic HIV+ individuals at high risk of non-AIDS events, 12 weeks of atorvastatin did not normalize monocyte gene expression patterns nor lead to significant changes in monocyte surface markers or plasma mediators linked to non-AIDS comorbidities.
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Affiliation(s)
- Anjana Yadav
- Department of Medicine; University of Pennsylvania Perelman School of Medicine, Philadelphia, PA
| | | | | | - Sarah J Ratcliffe
- Department of and Biostatistics and Epidemiology; University of Pennsylvania Perelman School of Medicine, Philadelphia, PA
| | - Grace H Choi
- Department of and Biostatistics and Epidemiology; University of Pennsylvania Perelman School of Medicine, Philadelphia, PA
| | | | - Pablo Tebas
- Department of Medicine; University of Pennsylvania Perelman School of Medicine, Philadelphia, PA
| | - Pamela A Shaw
- Department of and Biostatistics and Epidemiology; University of Pennsylvania Perelman School of Medicine, Philadelphia, PA
| | - Ronald G Collman
- Department of Medicine; University of Pennsylvania Perelman School of Medicine, Philadelphia, PA
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Donlan AN, Sutherland TE, Marie C, Preissner S, Bradley BT, Carpenter RM, Sturek JM, Ma JZ, Moreau GB, Donowitz JR, Buck GA, Serrano MG, Burgess SL, Abhyankar MM, Mura C, Bourne PE, Preissner R, Young MK, Lyons GR, Loomba JJ, Ratcliffe SJ, Poulter MD, Mathers AJ, Day AJ, Mann BJ, Allen JE, Petri WA. IL-13 is a driver of COVID-19 severity. JCI Insight 2021; 6:150107. [PMID: 34185704 PMCID: PMC8410056 DOI: 10.1172/jci.insight.150107] [Citation(s) in RCA: 49] [Impact Index Per Article: 16.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/31/2021] [Accepted: 06/24/2021] [Indexed: 12/21/2022] Open
Abstract
Immune dysregulation is characteristic of the more severe stages of SARS-CoV-2 infection. Understanding the mechanisms by which the immune system contributes to COVID-19 severity may open new avenues to treatment. Here, we report that elevated IL-13 was associated with the need for mechanical ventilation in 2 independent patient cohorts. In addition, patients who acquired COVID-19 while prescribed Dupilumab, a mAb that blocks IL-13 and IL-4 signaling, had less severe disease. In SARS-CoV-2-infected mice, IL-13 neutralization reduced death and disease severity without affecting viral load, demonstrating an immunopathogenic role for this cytokine. Following anti-IL-13 treatment in infected mice, hyaluronan synthase 1 (Has1) was the most downregulated gene, and accumulation of the hyaluronan (HA) polysaccharide was decreased in the lung. In patients with COVID-19, HA was increased in the lungs and plasma. Blockade of the HA receptor, CD44, reduced mortality in infected mice, supporting the importance of HA as a pathogenic mediator. Finally, HA was directly induced in the lungs of mice by administration of IL-13, indicating a new role for IL-13 in lung disease. Understanding the role of IL-13 and HA has important implications for therapy of COVID-19 and, potentially, other pulmonary diseases. IL-13 levels were elevated in patients with severe COVID-19. In a mouse model of the disease, IL-13 neutralization reduced the disease and decreased lung HA deposition. Administration of IL-13-induced HA in the lung. Blockade of the HA receptor CD44 prevented mortality, highlighting a potentially novel mechanism for IL-13-mediated HA synthesis in pulmonary pathology.
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Affiliation(s)
- Alexandra N. Donlan
- Division of Infectious Diseases and International Health, Department of Medicine and
- Department of Microbiology, Immunology and Cancer Biology, University of Virginia School of Medicine, Charlottesville, Virginia, USA
| | - Tara E. Sutherland
- Lydia Becker Institute of Immunology and Inflammation, School of Biological Sciences, University of Manchester, Manchester Academic Health Sciences Centre, Manchester, United Kingdom
| | - Chelsea Marie
- Division of Infectious Diseases and International Health, Department of Medicine and
| | - Saskia Preissner
- Department Oral and Maxillofacial Surgery, Charité – Universitätsmedizin Berlin, Freie Universität Berlin, Humboldt-Universität zu Berlin, and Berlin Institute of Health, Berlin, Germany
| | - Benjamin T. Bradley
- Department of Laboratory Medicine and Pathology, University of Washington, Seattle, Washington, USA
| | - Rebecca M. Carpenter
- Division of Infectious Diseases and International Health, Department of Medicine and
| | - Jeffrey M. Sturek
- Division of Pulmonary and Critical Care Medicine, Department of Medicine and
| | - Jennie Z. Ma
- Department of Public Health Sciences, University of Virginia School of Medicine, Charlottesville, Virginia, USA
| | - G. Brett Moreau
- Division of Infectious Diseases and International Health, Department of Medicine and
| | - Jeffrey R. Donowitz
- Division of Infectious Diseases and International Health, Department of Medicine and
- Division of Pediatric Infectious Diseases, Children’s Hospital of Richmond and
| | - Gregory A. Buck
- Department of Microbiology and Immunology, School of Medicine, Virginia Commonwealth University, Richmond, Virginia, USA
| | - Myrna G. Serrano
- Department of Microbiology and Immunology, School of Medicine, Virginia Commonwealth University, Richmond, Virginia, USA
| | - Stacey L. Burgess
- Division of Infectious Diseases and International Health, Department of Medicine and
| | - Mayuresh M. Abhyankar
- Division of Infectious Diseases and International Health, Department of Medicine and
| | - Cameron Mura
- School of Data Science and Department of Biomedical Engineering University of Virginia, Charlottesville, Virginia, USA
| | - Philip E. Bourne
- School of Data Science and Department of Biomedical Engineering University of Virginia, Charlottesville, Virginia, USA
| | - Robert Preissner
- Science-IT and Institute of Physiology, Charité – Universitätsmedizin Berlin, corporate member of Freie Universität Berlin, Humboldt-Universität zu Berlin, and Berlin Institute of Health, Berlin, Germany
| | - Mary K. Young
- Division of Infectious Diseases and International Health, Department of Medicine and
| | - Genevieve R. Lyons
- Department of Public Health Sciences, University of Virginia School of Medicine, Charlottesville, Virginia, USA
| | | | - Sarah J. Ratcliffe
- Department of Public Health Sciences, University of Virginia School of Medicine, Charlottesville, Virginia, USA
| | - Melinda D. Poulter
- Department of Pathology, University of Virginia School of Medicine, Charlottesville, Virginia, USA
| | - Amy J. Mathers
- Division of Infectious Diseases and International Health, Department of Medicine and
- Department of Pathology, University of Virginia School of Medicine, Charlottesville, Virginia, USA
| | - Anthony J. Day
- Lydia Becker Institute of Immunology and Inflammation, School of Biological Sciences, University of Manchester, Manchester Academic Health Sciences Centre, Manchester, United Kingdom
- Wellcome Trust Centre for Cell-Matrix Research, School of Biological Sciences, Faculty of Biology Medicine and Health, University of Manchester, Manchester Academic Health Sciences Centre, Manchester, United Kingdom
| | - Barbara J. Mann
- Division of Infectious Diseases and International Health, Department of Medicine and
- Department of Microbiology, Immunology and Cancer Biology, University of Virginia School of Medicine, Charlottesville, Virginia, USA
| | - Judith E. Allen
- Lydia Becker Institute of Immunology and Inflammation, School of Biological Sciences, University of Manchester, Manchester Academic Health Sciences Centre, Manchester, United Kingdom
- Wellcome Trust Centre for Cell-Matrix Research, School of Biological Sciences, Faculty of Biology Medicine and Health, University of Manchester, Manchester Academic Health Sciences Centre, Manchester, United Kingdom
| | - William A. Petri
- Division of Infectious Diseases and International Health, Department of Medicine and
- Department of Microbiology, Immunology and Cancer Biology, University of Virginia School of Medicine, Charlottesville, Virginia, USA
- Department of Pathology, University of Virginia School of Medicine, Charlottesville, Virginia, USA
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Gong S, Lakhashe SK, Hariraju D, Scinto H, Lanzavecchia A, Cameroni E, Corti D, Ratcliffe SJ, Rogers KA, Xiao P, Fontenot J, Villinger F, Ruprecht RM. Cooperation Between Systemic IgG1 and Mucosal Dimeric IgA2 Monoclonal Anti-HIV Env Antibodies: Passive Immunization Protects Indian Rhesus Macaques Against Mucosal SHIV Challenges. Front Immunol 2021; 12:705592. [PMID: 34413855 PMCID: PMC8370093 DOI: 10.3389/fimmu.2021.705592] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/05/2021] [Accepted: 07/16/2021] [Indexed: 11/30/2022] Open
Abstract
Understanding the interplay between systemic and mucosal anti-HIV antibodies can provide important insights to develop new prevention strategies. We used passive immunization via systemic and/or mucosal routes to establish cause-and-effect between well-characterized monoclonal antibodies and protection against intrarectal (i.r.) SHIV challenge. In a pilot study, for which we re-used animals previously exposed to SHIV but completely protected from viremia by different classes of anti-HIV neutralizing monoclonal antibodies (mAbs), we made a surprise finding: low-dose intravenous (i.v.) HGN194-IgG1, a human neutralizing mAb against the conserved V3-loop crown, was ineffective when given alone but protected 100% of animals when combined with i.r. applied HGN194-dIgA2 that by itself had only protected 17% of the animals. Here we sought to confirm the unexpected synergy between systemically administered IgG1 and mucosally applied dIgA HGN194 forms using six groups of naïve macaques (n=6/group). Animals received i.v. HGN194-IgG1 alone or combined with i.r.-administered dIgA forms; controls remained untreated. HGN194-IgG1 i.v. doses were given 24 hours before - and all i.r. dIgA doses 30 min before - i.r. exposure to a single high-dose of SHIV-1157ipEL-p. All controls became viremic. Among passively immunized animals, the combination of IgG1+dIgA2 again protected 100% of the animals. In contrast, single-agent i.v. IgG1 protected only one of six animals (17%) - consistent with our pilot data. IgG1 combined with dIgA1 or dIgA1+dIgA2 protected 83% (5/6) of the animals. The dIgA1+dIgA2 combination without the systemically administered dose of IgG1 protected 67% (4/6) of the macaques. We conclude that combining suboptimal antibody defenses at systemic and mucosal levels can yield synergy and completely prevent virus acquisition.
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Affiliation(s)
- Siqi Gong
- Texas Biomedical Research Institute, San Antonio, TX, United States
- New Iberia Research Center, University of Louisiana at Lafayette, Lafayette, LA, United States
| | | | - Dinesh Hariraju
- Texas Biomedical Research Institute, San Antonio, TX, United States
- New Iberia Research Center, University of Louisiana at Lafayette, Lafayette, LA, United States
| | - Hanna Scinto
- Texas Biomedical Research Institute, San Antonio, TX, United States
- Department of Microbiology, Immunology, and Molecular Genetics, University of Texas Health San Antonio, San Antonio, TX, United States
| | - Antonio Lanzavecchia
- Institute for Research in Biomedicine, Bellinzona, Switzerland
- Humabs BioMed, A Subsidiary of Vir Biotechnology, Bellinzona, Switzerland
| | - Elisabetta Cameroni
- Institute for Research in Biomedicine, Bellinzona, Switzerland
- Humabs BioMed, A Subsidiary of Vir Biotechnology, Bellinzona, Switzerland
| | - Davide Corti
- Institute for Research in Biomedicine, Bellinzona, Switzerland
- Humabs BioMed, A Subsidiary of Vir Biotechnology, Bellinzona, Switzerland
| | | | - Kenneth A. Rogers
- New Iberia Research Center, University of Louisiana at Lafayette, Lafayette, LA, United States
- Department of Biology, University of Louisiana at Lafayette, Lafayette, LA, United States
| | - Peng Xiao
- New Iberia Research Center, University of Louisiana at Lafayette, Lafayette, LA, United States
| | - Jane Fontenot
- New Iberia Research Center, University of Louisiana at Lafayette, Lafayette, LA, United States
| | - François Villinger
- New Iberia Research Center, University of Louisiana at Lafayette, Lafayette, LA, United States
- Department of Biology, University of Louisiana at Lafayette, Lafayette, LA, United States
| | - Ruth M. Ruprecht
- Texas Biomedical Research Institute, San Antonio, TX, United States
- New Iberia Research Center, University of Louisiana at Lafayette, Lafayette, LA, United States
- Department of Microbiology, Immunology, and Molecular Genetics, University of Texas Health San Antonio, San Antonio, TX, United States
- Department of Biology, University of Louisiana at Lafayette, Lafayette, LA, United States
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Ulrich CM, Knafl K, Foxwell AM, Zhou Q, Paidipati C, Tiller D, Ratcliffe SJ, Wallen GR, Richmond TS, Naylor M, Gordon TF, Grady C, Miller V. Experiences of Patients After Withdrawal From Cancer Clinical Trials. JAMA Netw Open 2021; 4:e2120052. [PMID: 34374772 PMCID: PMC8356063 DOI: 10.1001/jamanetworkopen.2021.20052] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/17/2022] Open
Abstract
IMPORTANCE Cancer clinical trials (CCTs) provide patients an opportunity to receive experimental drugs, tests, and/or procedures that can lead to remission. For some, a CCT may seem like their only option. Little is known about experiences of patient-participants who withdraw or are withdrawn from CCTs. OBJECTIVE To examine patient-participants' experiences during withdrawal from CCTs. DESIGN, SETTING, AND PARTICIPANTS This qualitative, descriptive study used a semistructured interview designed specifically for it, with open-ended and probing questions. The study took place at a National Cancer Institute-designated comprehensive cancer center affiliated with the University of Pennsylvania. The need for a sample of 20 interviewees was determined by code and meaning saturation (ie, no new themes revealed and identified themes fully elaborated). Interviews were transcribed verbatim and analyzed with a qualitative software program. Data coded with the software were refined into categories reflecting broad themes. A criterion-based sampling approach was used to select a subset of adult patients with cancer who were former CCT participants and who agreed on exit from those CCTs to a later interview about withdrawal experiences. They were contacted one by one by telephone from September 2015 through June 2019 until 20 agreed. Data analysis was completed in October 2020. MAIN OUTCOMES AND MEASURES Themes characterizing patient-participants' perceptions of their withdrawal experiences. RESULTS Respondents' mean (SD) age was 64.42 (8.49) years; 12 (63.2%) were men. Most respondents were White (18 respondents [94.7%]) and college educated (11 respondents [55.0%]). Cancer stage data were available for 17 participants, 11 of whom (64.7%) had stage IV cancer at CCT enrollment. Thirteen respondents reported withdrawal as a result of disease progression, and 5 withdrew because of adverse effects. Other reasons for withdrawal included acute illness and participant uncertainty about the reason. Analysis of interview data yielded 5 themes: posttrial prognostic awareness, goals of care discussions, emotional coping, burden of adverse effects, and professional trust and support. Subthemes included regrets or hindsight, urgency to start next treatment, and weighing benefits and burdens of treatment. Limited discussions about patient-participants' immediate posttrial care needs left many feeling that there was no clear path forward. CONCLUSIONS AND RELEVANCE Patient-participants transitioning from a CCT described feeling intense symptoms and emotions and awareness that their life span was short and options seemed to be limited. Communication that includes attention to posttrial needs is needed throughout the CCT to help patient-participants navigate posttrial steps. Research should focus on components of responsible and ethical CCT transitions, including types and timing of discussions and who should begin these discussions with patient-participants and their families.
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Affiliation(s)
- Connie M. Ulrich
- School of Nursing, University of Pennsylvania, Philadelphia
- Perelman School of Medicine, University of Pennsylvania, Philadelphia
| | - Kathleen Knafl
- School of Nursing, University of North Carolina, Chapel Hill
| | | | - Qiuping Zhou
- School of Nursing, George Washington University, Washington, DC
| | - Cynthia Paidipati
- Department of Family and Community Health, Marcella Niehoff School of Nursing, Loyola University Chicago, Chicago, Illinois
| | - Deborah Tiller
- School of Nursing, University of Pennsylvania, Philadelphia
| | | | | | | | - Mary Naylor
- School of Nursing, University of Pennsylvania, Philadelphia
| | | | - Christine Grady
- National Institutes of Health Clinical Center, Bethesda, Maryland
| | - Victoria Miller
- Department of Pediatrics, Children’s Hospital of Philadelphia, Philadelphia, Pennsylvania
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Keim-Malpass J, Ratcliffe SJ, Moorman LP, Clark MT, Krahn KN, Monfredi OJ, Hamil S, Yousefvand G, Moorman JR, Bourque JM. Predictive Monitoring-Impact in Acute Care Cardiology Trial (PM-IMPACCT): Protocol for a Randomized Controlled Trial. JMIR Res Protoc 2021; 10:e29631. [PMID: 34043525 PMCID: PMC8285742 DOI: 10.2196/29631] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/14/2021] [Revised: 05/23/2021] [Accepted: 05/27/2021] [Indexed: 12/23/2022] Open
Abstract
BACKGROUND Patients in acute care wards who deteriorate and are emergently transferred to intensive care units (ICUs) have poor outcomes. Early identification of patients who are decompensating might allow for earlier clinical intervention and reduced morbidity and mortality. Advances in bedside continuous predictive analytics monitoring (ie, artificial intelligence [AI]-based risk prediction) have made complex data easily available to health care providers and have provided early warning of potentially catastrophic clinical events. We present a dynamic, visual, predictive analytics monitoring tool that integrates real-time bedside telemetric physiologic data into robust clinical models to estimate and communicate risk of imminent events. This tool, Continuous Monitoring of Event Trajectories (CoMET), has been shown in retrospective observational studies to predict clinical decompensation on the acute care ward. There is a need to more definitively study this advanced predictive analytics or AI monitoring system in a prospective, randomized controlled, clinical trial. OBJECTIVE The goal of this trial is to determine the impact of an AI-based visual risk analytic, CoMET, on improving patient outcomes related to clinical deterioration, response time to proactive clinical action, and costs to the health care system. METHODS We propose a cluster randomized controlled trial to test the impact of using the CoMET display in an acute care cardiology and cardiothoracic surgery hospital floor. The number of admissions to a room undergoing cluster randomization was estimated to be 10,424 over the 20-month study period. Cluster randomization based on bed number will occur every 2 months. The intervention cluster will have the CoMET score displayed (along with standard of care), while the usual care group will receive standard of care only. RESULTS The primary outcome will be hours free from events of clinical deterioration. Hours of acute clinical events are defined as time when one or more of the following occur: emergent ICU transfer, emergent surgery prior to ICU transfer, cardiac arrest prior to ICU transfer, emergent intubation, or death. The clinical trial began randomization in January 2021. CONCLUSIONS Very few AI-based health analytics have been translated from algorithm to real-world use. This study will use robust, prospective, randomized controlled, clinical trial methodology to assess the effectiveness of an advanced AI predictive analytics monitoring system in incorporating real-time telemetric data for identifying clinical deterioration on acute care wards. This analysis will strengthen the ability of health care organizations to evolve as learning health systems, in which bioinformatics data are applied to improve patient outcomes by incorporating AI into knowledge tools that are successfully integrated into clinical practice by health care providers. TRIAL REGISTRATION ClinicalTrials.gov NCT04359641; https://clinicaltrials.gov/ct2/show/NCT04359641. INTERNATIONAL REGISTERED REPORT IDENTIFIER (IRRID) DERR1-10.2196/29631.
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Affiliation(s)
| | | | | | | | - Katy N Krahn
- University of Virginia, Charlottesville, VA, United States
| | | | - Susan Hamil
- University of Virginia, Charlottesville, VA, United States
| | | | - J Randall Moorman
- University of Virginia, Charlottesville, VA, United States.,AMP3D, Charlottesville, VA, United States
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Zimmet AM, Sullivan BA, Fairchild KD, Moorman JR, Isler JR, Wallman-Stokes AW, Sahni R, Vesoulis ZA, Ratcliffe SJ, Lake DE. Vital sign metrics of VLBW infants in three NICUs: implications for predictive algorithms. Pediatr Res 2021; 90:125-130. [PMID: 33767372 PMCID: PMC8376742 DOI: 10.1038/s41390-021-01428-3] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/31/2020] [Revised: 02/03/2021] [Accepted: 02/04/2021] [Indexed: 12/28/2022]
Abstract
BACKGROUND Continuous heart rate (HR) and oxygenation (SpO2) metrics can be useful for predicting adverse events in very low birth weight (VLBW) infants. To optimize the utility of these tools, inter-site variability must be taken into account. METHODS For VLBW infants at three neonatal intensive care units (NICUs), we analyzed the mean, standard deviation, skewness, kurtosis, and cross-correlation of electrocardiogram HR, pulse oximeter pulse rate, and SpO2. The number and durations of bradycardia and desaturation events were also measured. Twenty-two metrics were calculated hourly, and mean daily values were compared between sites. RESULTS We analyzed data from 1168 VLBW infants from birth through day 42 (35,238 infant-days). HR and SpO2 metrics were similar at the three NICUs, with mean HR rising by ~10 beats/min over the first 2 weeks and mean SpO2 remaining stable ~94% over time. The number of bradycardia events was higher at one site, and the duration of desaturations was longer at another site. CONCLUSIONS Mean HR and SpO2 were generally similar among VLBW infants at three NICUs from birth through 6 weeks of age, but bradycardia and desaturation events differed in the first 2 weeks after birth. This highlights the importance of developing predictive analytics tools at multiple sites. IMPACT HR and SpO2 analytics can be useful for predicting adverse events in VLBW infants in the NICU, but inter-site differences must be taken into account in developing predictive algorithms. Although mean HR and SpO2 patterns were similar in VLBW infants at three NICUs, inter-site differences in the number of bradycardia events and duration of desaturation events were found. Inter-site differences in bradycardia and desaturation events among VLBW infants should be considered in the development of predictive algorithms.
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Affiliation(s)
- Amanda M. Zimmet
- Department of Medicine, University of Virginia, Charlottesville, VA
| | | | | | | | | | | | - Rakesh Sahni
- Department of Pediatrics, Columbia University, New York, NY
| | | | - Sarah J. Ratcliffe
- Department of Public Health Science, University of Virginia, Charlottesville, VA
| | - Douglas E. Lake
- Department of Medicine, University of Virginia, Charlottesville, VA,Sepsis Challenges Response Unit, University of Virginia, Charlottesville, VA
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Zimmet AM, Sullivan BA, Fairchild KD, Moorman JR, Isler JR, Wallman-Stokes AW, Sahni R, Vesoulis ZA, Ratcliffe SJ, Lake DE. Correction: Vital sign metrics of VLBW infants in three NICUs: implications for predictive algorithms. Pediatr Res 2021; 90:233. [PMID: 34262133 PMCID: PMC9162087 DOI: 10.1038/s41390-021-01621-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Amanda M Zimmet
- Department of Medicine, University of Virginia,
Charlottesville, VA, USA
| | - Brynne A Sullivan
- Department of Pediatrics, University of Virginia,
Charlottesville, VA, USA
| | - Karen D Fairchild
- Department of Pediatrics, University of Virginia, Charlottesville, VA, USA.
| | - J Randall Moorman
- Department of Medicine, University of Virginia,
Charlottesville, VA, USA
| | - Joseph R Isler
- Department of Pediatrics, Columbia University, New York,
NY, USA
| | | | - Rakesh Sahni
- Department of Pediatrics, Columbia University, New York,
NY, USA
| | - Zachary A Vesoulis
- Department of Pediatrics, Washington University St. Louis,
St. Louis, MO, USA
| | - Sarah J Ratcliffe
- Department of Public Health Science, University of
Virginia, Charlottesville, VA, USA
| | - Douglas E Lake
- Department of Medicine, University of Virginia,
Charlottesville, VA, USA
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Mazimba S, Ratcliffe SJ, Smolkin ME, Mehta N, Addison D, Fleming MA, Bilchick K, Scott EJ, Mwansa H, Hilton EJ, Barnes K, Keiler J, Breathett K. RACE IS ASSOCIATED WITH HEART TRANSPLANTATION BUT NOT MYOCARDIAL RECOVERY IN PATIENTS MANAGED WITH DURABLE LEFT VENTRICULAR ASSIST DEVICES. J Am Coll Cardiol 2021. [DOI: 10.1016/s0735-1097(21)02124-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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35
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Andrinopoulou ER, Harhay MO, Ratcliffe SJ, Rizopoulos D. Reflections on modern methods: Dynamic prediction using joint models of longitudinal and time-to-event data. Int J Epidemiol 2021; 50:1731-1743. [PMID: 33729514 DOI: 10.1093/ije/dyab047] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/26/2020] [Accepted: 02/26/2021] [Indexed: 11/12/2022] Open
Abstract
Individualized prediction is a hallmark of clinical medicine and decision making. However, most existing prediction models rely on biomarkers and clinical outcomes available at a single time. This is in contrast to how health states progress and how physicians deliver care, which relies on progressively updating a prognosis based on available information. With the use of joint models of longitudinal and survival data, it is possible to dynamically adjust individual predictions regarding patient prognosis. This article aims to introduce the reader to the development of dynamic risk predictions and to provide the necessary resources to support their implementation and assessment, such as adaptable R code, and the theory behind the methodology. Furthermore, measures to assess the predictive performance of the derived predictions and extensions that could improve the predictions are presented. We illustrate personalized predictions using an online dataset consisting of patients with chronic liver disease (primary biliary cirrhosis).
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Affiliation(s)
| | - Michael O Harhay
- Department of Biostatistics, Epidemiology, and Informatics, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA, USA.,Palliative and Advanced Illness Research (PAIR) Center, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA, USA.,Pulmonary, Allergy, and Critical Care Division, Department of Medicine, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA, USA
| | - Sarah J Ratcliffe
- Division of Biostatistics, Department of Public Health Sciences, University of Virginia, Charlottesville, VA, USA
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36
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Rotar EP, Beller JP, Smolkin ME, Chancellor WZ, Ailawadi G, Yarboro LT, Hulse M, Ratcliffe SJ, Teman NR. Prediction of Prolonged Intensive Care Unit Length of Stay Following Cardiac Surgery. Semin Thorac Cardiovasc Surg 2021; 34:172-179. [PMID: 33689923 DOI: 10.1053/j.semtcvs.2021.02.021] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/24/2021] [Accepted: 02/01/2021] [Indexed: 11/11/2022]
Abstract
Intensive care unit (ICU) costs comprise a significant proportion of the total inpatient charges for cardiac surgery. No reliable method for predicting intensive care unit length of stay following cardiac surgery exists, making appropriate staffing and resource allocation challenging. We sought to develop a predictive model to anticipate prolonged ICU length of stay (LOS). All patients undergoing coronary artery bypass grafting (CABG) and/or valve surgery with a Society of Thoracic Surgeons (STS) predicted risk score were evaluated from an institutional STS database. Models were developed using 2014-2017 data; validation used 2018-2019 data. Prolonged ICU LOS was defined as requiring ICU care for at least three days postoperatively. Predictive models were created using lasso regression and relative utility compared. A total of 3283 patients were included with 1669 (50.8%) undergoing isolated CABG. Overall, 32% of patients had prolonged ICU LOS. Patients with comorbid conditions including severe COPD (53% vs 29%, P < 0.001), recent pneumonia (46% vs 31%, P < 0.001), dialysis-dependent renal failure (57% vs 31%, P < 0.001) or reoperative status (41% vs 31%, P < 0.001) were more likely to experience prolonged ICU stays. A prediction model utilizing preoperative and intraoperative variables correctly predicted prolonged ICU stay 76% of the time. A preoperative variable-only model exhibited 74% prediction accuracy. Excellent prediction of prolonged ICU stay can be achieved using STS data. Moreover, there is limited loss of predictive ability when restricting models to preoperative variables. This novel model can be applied to aid patient counseling, resource allocation, and staff utilization.
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Affiliation(s)
- Evan P Rotar
- Division of Thoracic and Cardiovascular Surgery, Department of Surgery, University of Virginia, Charlottesville, Virginia
| | - Jared P Beller
- Division of Thoracic and Cardiovascular Surgery, Department of Surgery, University of Virginia, Charlottesville, Virginia
| | - Mark E Smolkin
- Public Health Sciences, University of Virginia School of Medicine, Charlottesville, Virginia
| | - William Z Chancellor
- Division of Thoracic and Cardiovascular Surgery, Department of Surgery, University of Virginia, Charlottesville, Virginia
| | - Gorav Ailawadi
- Department of Cardiac Surgery, University of Michigan, Ann Arbor, Michigan
| | - Leora T Yarboro
- Division of Thoracic and Cardiovascular Surgery, Department of Surgery, University of Virginia, Charlottesville, Virginia
| | - Mathew Hulse
- Department of Anesthesiology, University of Virginia, Charlottesville, Virginia
| | - Sarah J Ratcliffe
- Public Health Sciences, University of Virginia School of Medicine, Charlottesville, Virginia
| | - Nicholas R Teman
- Division of Thoracic and Cardiovascular Surgery, Department of Surgery, University of Virginia, Charlottesville, Virginia.
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37
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Donlan AN, Sutherland TE, Marie C, Preissner S, Bradley BT, Carpenter RM, Sturek JM, Ma JZ, Moreau GB, Donowitz JR, Buck GA, Serrano MG, Burgess SL, Abhyankar MM, Mura C, Bourne PE, Preissner R, Young MK, Lyons GR, Loomba JJ, Ratcliffe SJ, Poulter MD, Mathers AJ, Day A, Mann BJ, Allen JE, Petri WA. IL-13 is a driver of COVID-19 severity. medRxiv 2021:2020.06.18.20134353. [PMID: 33688686 PMCID: PMC7941663 DOI: 10.1101/2020.06.18.20134353] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Abstract
Immune dysregulation is characteristic of the more severe stages of SARS-CoV-2 infection. Understanding the mechanisms by which the immune system contributes to COVID-19 severity may open new avenues to treatment. Here we report that elevated interleukin-13 (IL-13) was associated with the need for mechanical ventilation in two independent patient cohorts. In addition, patients who acquired COVID-19 while prescribed Dupilumab had less severe disease. In SARS-CoV-2 infected mice, IL-13 neutralization reduced death and disease severity without affecting viral load, demonstrating an immunopathogenic role for this cytokine. Following anti-IL-13 treatment in infected mice, in the lung, hyaluronan synthase 1 (Has1) was the most downregulated gene and hyaluronan accumulation was decreased. Blockade of the hyaluronan receptor, CD44, reduced mortality in infected mice, supporting the importance of hyaluronan as a pathogenic mediator, and indicating a new role for IL-13 in lung disease. Understanding the role of IL-13 and hyaluronan has important implications for therapy of COVID-19 and potentially other pulmonary diseases.
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Affiliation(s)
- Alexandra N. Donlan
- Division of Infectious Diseases and International Health, Department of Medicine, University of Virginia School of Medicine, Charlottesville VA 22908 USA
- Department of Microbiology, Immunology and Cancer Biology, University of Virginia School of Medicine, Charlottesville VA 22908 USA
| | - Tara E. Sutherland
- Lydia Becker Institute of Immunology and Inflammation, School of Biological Sciences, University of Manchester, Manchester Academic Health Sciences Centre, Manchester M13 9PL, United Kingdom
| | - Chelsea Marie
- Division of Infectious Diseases and International Health, Department of Medicine, University of Virginia School of Medicine, Charlottesville VA 22908 USA
| | - Saskia Preissner
- Department Oral and Maxillofacial Surgery, Charité – Universitätsmedizin Berlin, Freie Universität Berlin, Humboldt-Universität zu Berlin, and Berlin Institute of Health, Augustenburger Platz 1, 13353 Berlin, Germany
| | - Ben T. Bradley
- Department of Laboratory Medicine and Pathology, University of Washington, Seattle WA 98109 USA
| | - Rebecca M. Carpenter
- Division of Infectious Diseases and International Health, Department of Medicine, University of Virginia School of Medicine, Charlottesville VA 22908 USA
| | - Jeffrey M. Sturek
- Division of Pulmonary and Critical Care Medicine, Department of Medicine, University of Virginia School of Medicine, Charlottesville VA 22908 USA
| | - Jennie Z. Ma
- Department of Public Health Sciences, University of Virginia School of Medicine, Charlottesville VA 22908 USA
| | - G. Brett Moreau
- Division of Infectious Diseases and International Health, Department of Medicine, University of Virginia School of Medicine, Charlottesville VA 22908 USA
| | - Jeffrey R. Donowitz
- Division of Infectious Diseases and International Health, Department of Medicine, University of Virginia School of Medicine, Charlottesville VA 22908 USA
- Division of Pediatric Infectious Diseases, Children’s Hospital of Richmond, Virginia Commonwealth University, Richmond VA 23298 USA
| | - Gregory A. Buck
- Department of Microbiology and Immunology, School of Medicine, Virginia Commonwealth University, Richmond VA 23298 USA
| | - Myrna G. Serrano
- Department of Microbiology and Immunology, School of Medicine, Virginia Commonwealth University, Richmond VA 23298 USA
| | - Stacey L. Burgess
- Division of Infectious Diseases and International Health, Department of Medicine, University of Virginia School of Medicine, Charlottesville VA 22908 USA
| | - Mayuresh M. Abhyankar
- Division of Infectious Diseases and International Health, Department of Medicine, University of Virginia School of Medicine, Charlottesville VA 22908 USA
| | - Cameron Mura
- School of Data Science and Department of Biomedical Engineering University of Virginia, Charlottesville, VA 22904
| | - Philip E. Bourne
- School of Data Science and Department of Biomedical Engineering University of Virginia, Charlottesville, VA 22904
| | - Robert Preissner
- Science-IT and Institute of Physiology, Charité – Universitätsmedizin Berlin, corporate member of Freie Universität Berlin, Humboldt-Universität zu Berlin, and Berlin Institute of Health, Philippstrasse 12, 10115 Berlin, Germany
| | - Mary K. Young
- Division of Infectious Diseases and International Health, Department of Medicine, University of Virginia School of Medicine, Charlottesville VA 22908 USA
| | - Genevieve R. Lyons
- Department of Public Health Sciences, University of Virginia School of Medicine, Charlottesville VA 22908 USA
| | - Johanna J. Loomba
- Integrated Translational Health Research Institute (iTHRIV), University of Virginia School of Medicine, Charlottesville VA 22908 USA
| | - Sarah J Ratcliffe
- Department of Public Health Sciences, University of Virginia School of Medicine, Charlottesville VA 22908 USA
| | - Melinda D. Poulter
- Department of Pathology University of Virginia School of Medicine, Charlottesville VA 22908 USA
| | - Amy J. Mathers
- Division of Infectious Diseases and International Health, Department of Medicine, University of Virginia School of Medicine, Charlottesville VA 22908 USA
- Department of Pathology University of Virginia School of Medicine, Charlottesville VA 22908 USA
| | - Anthony Day
- Lydia Becker Institute of Immunology and Inflammation, School of Biological Sciences, University of Manchester, Manchester Academic Health Sciences Centre, Manchester M13 9PL, United Kingdom
- Wellcome Trust Centre for Cell-Matrix Research, School of Biological Sciences, Faculty of Biology Medicine and Health, University of Manchester, Manchester Academic Health Sciences Centre, Manchester M13 9PT, United Kingdom
| | - Barbara J. Mann
- Division of Infectious Diseases and International Health, Department of Medicine, University of Virginia School of Medicine, Charlottesville VA 22908 USA
| | - Judith E. Allen
- Lydia Becker Institute of Immunology and Inflammation, School of Biological Sciences, University of Manchester, Manchester Academic Health Sciences Centre, Manchester M13 9PL, United Kingdom
- Wellcome Trust Centre for Cell-Matrix Research, School of Biological Sciences, Faculty of Biology Medicine and Health, University of Manchester, Manchester Academic Health Sciences Centre, Manchester M13 9PT, United Kingdom
| | - William A. Petri
- Division of Infectious Diseases and International Health, Department of Medicine, University of Virginia School of Medicine, Charlottesville VA 22908 USA
- Department of Microbiology, Immunology and Cancer Biology, University of Virginia School of Medicine, Charlottesville VA 22908 USA
- Department of Pathology University of Virginia School of Medicine, Charlottesville VA 22908 USA
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38
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Keim SK, Ratcliffe SJ, Naylor MD, Bowles KH. Patient Factors Linked with Return Acute Healthcare Use in Older Adults by Discharge Disposition. J Am Geriatr Soc 2020; 68:2279-2287. [PMID: 33267559 DOI: 10.1111/jgs.16645] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/11/2019] [Revised: 04/24/2020] [Accepted: 05/12/2020] [Indexed: 12/22/2022]
Abstract
OBJECTIVES Compare patient characteristics by hospital discharge disposition (home without services, home with home healthcare (HHC) services, or post-acute care (PAC) facilities). Examine timing and rates of 30-day healthcare utilization (rehospitalization, emergency department (ED) visit, or observation (OBS) visit) and patient characteristics associated with rehospitalization by discharge location. DESIGN Retrospective analysis of hospital administrative and clinical data. SETTING AND PARTICIPANTS A total of 3,294 older adult inpatients discharged home with or without HHC services or to a PAC facility. MEASUREMENTS Patient-level sociodemographic and clinical characteristics. Number of and time to occurrences of rehospitalization or ED/OBS visit within 30 days of hospital discharge. RESULTS Most rehospitalizations and ED/OBS visits occurred within 14 days from hospital discharge. Patients who returned within 24 hours came mostly from inpatient rehabilitation facilities (IRFs). More intense levels of PAC services were linked with higher rehospitalization risk. However, specific predictors differed by discharge location. Being unemployed, being single, and having more comorbidities were most associated with rehospitalization in those who went home with or without services, whereas patients rehospitalized from IRFs were younger, with less chronic illness burden, but greater and recent functional decline. Those discharged with HHC services had more return ED/OBS visits. CONCLUSIONS Although sicker patients were referred for more intense levels of PAC services, patients with greater chronic illness burden were still most often rehospitalized. In addition to unique patient differences, rehospitalizations from IRF within 24 hours suggest systems factors are contributory. Most return acute healthcare utilization occurred within 14 days; therefore, interventions should focus on smoothing transitions to all discharge locations. Because predictors of rehospitalization risk differed by discharge disposition, future research is necessary to study approaches aimed at matching patients' care needs with the most suitable PAC services at the right time. J Am Geriatr Soc 68:2279-2287, 2020.
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Affiliation(s)
- Susan K Keim
- School of Nursing, University of Pennsylvania, Philadelphia, Pennsylvania, USA
| | - Sarah J Ratcliffe
- Division of Biostatistics, University of Virginia, Charlottesville, Virginia, USA
| | - Mary D Naylor
- School of Nursing, University of Pennsylvania, Philadelphia, Pennsylvania, USA
| | - Kathryn H Bowles
- School of Nursing, University of Pennsylvania, Philadelphia, Pennsylvania, USA.,Visiting Nurse Service of New York, New York, New York, USA
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Shinde P, Howie HL, Stegmann TC, Hay AM, Waterman HR, Szittner Z, Bentlage AEH, Kapp L, Lissenberg-Thunnissen SN, Dekkers G, Schasfoort RBM, Ratcliffe SJ, Smolkin ME, Vidarsson G, van der Schoot CE, Hudson KE, Zimring JC. IgG Subclass Determines Suppression Versus Enhancement of Humoral Alloimmunity to Kell RBC Antigens in Mice. Front Immunol 2020; 11:1516. [PMID: 32765523 PMCID: PMC7378678 DOI: 10.3389/fimmu.2020.01516] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/28/2020] [Accepted: 06/09/2020] [Indexed: 02/03/2023] Open
Abstract
It has long been appreciated that immunoglobulins are not just the effector endpoint of humoral immunity, but rather have a complex role in regulating antibody responses themselves. Donor derived anti-RhD IgG has been used for over 50 years as an immunoprophylactic to prevent maternal alloimmunization to RhD. Although anti-RhD has dramatically decreased rates of hemolytic disease of the fetus and newborn (for the RhD alloantigen), anti-RhD also fails in some cases, and can even paradoxically enhance immune responses in some circumstances. Attempts to generate a monoclonal anti-RhD have largely failed, with some monoclonals suppressing less than donor derived anti-RhD and others enhancing immunity. These difficulties likely result, in part, because the mechanism of anti-RhD remains unclear. However, substantial evidence exists to reject the common explanations of simple clearance of RhD + RBCs or masking of antigen. Donor derived anti-RhD is a mixture of 4 different IgG subtypes. To the best of our knowledge an analysis of the role different IgG subtypes play in immunoregulation has not been carried out; and, only IgG1 and IgG3 have been tested as monoclonals. Multiple attempts to elicit alloimmune responses to human RhD epitopes in mice have failed. To circumvent this limitation, we utilize a tractable animal model of RBC alloimmunization using the human Kell glycoprotein as an antigen to test the effect of IgG subtype on immunoregulation by antibodies to RBC alloantigens. We report that the ability of an anti-RBC IgG to enhance, suppress (at the level of IgM responses), or have no effect is a function of the IgG subclass in this model system.
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Affiliation(s)
- Paurvi Shinde
- Bloodworks Northwest Research Institute, Seattle, WA, United States
| | - Heather L Howie
- Department of Pathology, Carter Immunology Center, University of Virginia School of Medicine, Charlottesville, VA, United States
| | - Tamara C Stegmann
- Sanquin Research and Landsteiner Laboratory, Department of Experimental Immunohematology, Academic Medical Center, University of Amsterdam, Amsterdam, Netherlands
| | - Ariel M Hay
- Department of Pathology, Carter Immunology Center, University of Virginia School of Medicine, Charlottesville, VA, United States
| | | | - Zoltan Szittner
- Sanquin Research and Landsteiner Laboratory, Department of Experimental Immunohematology, Academic Medical Center, University of Amsterdam, Amsterdam, Netherlands
| | - Arthur E H Bentlage
- Sanquin Research and Landsteiner Laboratory, Department of Experimental Immunohematology, Academic Medical Center, University of Amsterdam, Amsterdam, Netherlands
| | - Linda Kapp
- Bloodworks Northwest Research Institute, Seattle, WA, United States
| | - Suzanne N Lissenberg-Thunnissen
- Sanquin Research and Landsteiner Laboratory, Department of Experimental Immunohematology, Academic Medical Center, University of Amsterdam, Amsterdam, Netherlands
| | - Gillian Dekkers
- Sanquin Research and Landsteiner Laboratory, Department of Experimental Immunohematology, Academic Medical Center, University of Amsterdam, Amsterdam, Netherlands
| | - Richard B M Schasfoort
- Medical Cell Biophysics Group, MIRA Institute, University of Twente, Enschede, Netherlands
| | - Sarah J Ratcliffe
- Department of Pathology, Carter Immunology Center, University of Virginia School of Medicine, Charlottesville, VA, United States
| | - Mark E Smolkin
- Department of Pathology, Carter Immunology Center, University of Virginia School of Medicine, Charlottesville, VA, United States
| | - Gestur Vidarsson
- Sanquin Research and Landsteiner Laboratory, Department of Experimental Immunohematology, Academic Medical Center, University of Amsterdam, Amsterdam, Netherlands
| | - C Ellen van der Schoot
- Sanquin Research and Landsteiner Laboratory, Department of Experimental Immunohematology, Academic Medical Center, University of Amsterdam, Amsterdam, Netherlands
| | - Krystalyn E Hudson
- Department of Pathology and Cell Biology, Columbia University Irving Medical Center, New York, NY, United States
| | - James C Zimring
- Bloodworks Northwest Research Institute, Seattle, WA, United States.,Department of Pathology, Carter Immunology Center, University of Virginia School of Medicine, Charlottesville, VA, United States
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40
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Weissman GE, Yadav KN, Srinivasan T, Szymanski S, Capulong F, Madden V, Courtright KR, Hart JL, Asch DA, Ratcliffe SJ, Schapira MM, Halpern SD. Preferences for Predictive Model Characteristics among People Living with Chronic Lung Disease: A Discrete Choice Experiment. Med Decis Making 2020; 40:633-643. [PMID: 32532169 DOI: 10.1177/0272989x20932152] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Background. Patients may find clinical prediction models more useful if those models accounted for preferences for false-positive and false-negative predictive errors and for other model characteristics. Methods. We conducted a discrete choice experiment to compare preferences for characteristics of a hypothetical mortality prediction model among community-dwelling patients with chronic lung disease recruited from 3 clinics in Philadelphia. This design was chosen to allow us to quantify "exchange rates" between different characteristics of a prediction model. We provided previously validated educational modules to explain model attributes of sensitivity, specificity, confidence intervals (CI), and time horizons. Patients reported their interest in using prediction models themselves or having their physicians use them. Patients then chose between 2 hypothetical prediction models each containing varying levels of the 4 attributes across 12 tasks. Results. We completed interviews with 200 patients, among whom 95% correctly chose a strictly dominant model in an internal validity check. Patients' interest in predictive information was high for use by themselves (n = 169, 85%) and by their physicians (n = 184, 92%). Interest in maximizing sensitivity and specificity were similar (0.88 percentage points of specificity equivalent to 1 point of sensitivity, 95% CI 0.72 to 1.05). Patients were willing to accept a reduction of 6.10 months (95% CI 3.66 to 8.54) in the predictive time horizon for a 1% increase in specificity. Discussion. Patients with chronic lung disease can articulate their preferences for the characteristics of hypothetical mortality prediction models and are highly interested in using such models as part of their care. Just as clinical care should become more patient centered, so should the characteristics of predictive models used to guide that care.
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Affiliation(s)
- Gary E Weissman
- Department of Medicine, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA, USA.,Palliative and Advanced Illness Research Center, University of Pennsylvania, Philadelphia, PA, USA.,Fostering Improvement in End-of-Life Decision Science Program, University of Pennsylvania, Philadelphia, PA, USA.,Center for Health Incentives and Behavioral Economics, University of Pennsylvania, Philadelphia, PA, USA.,Leonard Davis Institute of Health Economics, University of Pennsylvania, Philadelphia, PA, USA
| | - Kuldeep N Yadav
- Palliative and Advanced Illness Research Center, University of Pennsylvania, Philadelphia, PA, USA.,Fostering Improvement in End-of-Life Decision Science Program, University of Pennsylvania, Philadelphia, PA, USA.,Center for Health Incentives and Behavioral Economics, University of Pennsylvania, Philadelphia, PA, USA
| | - Trishya Srinivasan
- Palliative and Advanced Illness Research Center, University of Pennsylvania, Philadelphia, PA, USA.,Fostering Improvement in End-of-Life Decision Science Program, University of Pennsylvania, Philadelphia, PA, USA.,Center for Health Incentives and Behavioral Economics, University of Pennsylvania, Philadelphia, PA, USA
| | - Stephanie Szymanski
- Palliative and Advanced Illness Research Center, University of Pennsylvania, Philadelphia, PA, USA.,Fostering Improvement in End-of-Life Decision Science Program, University of Pennsylvania, Philadelphia, PA, USA.,Center for Health Incentives and Behavioral Economics, University of Pennsylvania, Philadelphia, PA, USA
| | - Florylene Capulong
- Palliative and Advanced Illness Research Center, University of Pennsylvania, Philadelphia, PA, USA.,Fostering Improvement in End-of-Life Decision Science Program, University of Pennsylvania, Philadelphia, PA, USA
| | - Vanessa Madden
- Palliative and Advanced Illness Research Center, University of Pennsylvania, Philadelphia, PA, USA.,Fostering Improvement in End-of-Life Decision Science Program, University of Pennsylvania, Philadelphia, PA, USA.,Center for Health Incentives and Behavioral Economics, University of Pennsylvania, Philadelphia, PA, USA
| | - Katherine R Courtright
- Department of Medicine, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA, USA.,Palliative and Advanced Illness Research Center, University of Pennsylvania, Philadelphia, PA, USA.,Fostering Improvement in End-of-Life Decision Science Program, University of Pennsylvania, Philadelphia, PA, USA.,Center for Health Incentives and Behavioral Economics, University of Pennsylvania, Philadelphia, PA, USA.,Leonard Davis Institute of Health Economics, University of Pennsylvania, Philadelphia, PA, USA
| | - Joanna L Hart
- Department of Medicine, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA, USA.,Palliative and Advanced Illness Research Center, University of Pennsylvania, Philadelphia, PA, USA.,Fostering Improvement in End-of-Life Decision Science Program, University of Pennsylvania, Philadelphia, PA, USA.,Center for Health Incentives and Behavioral Economics, University of Pennsylvania, Philadelphia, PA, USA.,Leonard Davis Institute of Health Economics, University of Pennsylvania, Philadelphia, PA, USA
| | - David A Asch
- Department of Medicine, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA, USA.,Center for Health Incentives and Behavioral Economics, University of Pennsylvania, Philadelphia, PA, USA.,Leonard Davis Institute of Health Economics, University of Pennsylvania, Philadelphia, PA, USA.,Center for Health Care Innovation, University of Pennsylvania, Philadelphia, PA, USA.,The Center for Health Equity Research and Promotion, Philadelphia VA Medical Center, Philadelphia, PA, USA
| | - Sarah J Ratcliffe
- Department of Public Health Sciences and Division of Biostatistics at the University of Virginia, Charlottesville, VA, USA
| | - Marilyn M Schapira
- Department of Medicine, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA, USA.,Leonard Davis Institute of Health Economics, University of Pennsylvania, Philadelphia, PA, USA.,The Center for Health Equity Research and Promotion, Philadelphia VA Medical Center, Philadelphia, PA, USA
| | - Scott D Halpern
- Department of Medicine, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA, USA.,Palliative and Advanced Illness Research Center, University of Pennsylvania, Philadelphia, PA, USA.,Fostering Improvement in End-of-Life Decision Science Program, University of Pennsylvania, Philadelphia, PA, USA.,Center for Health Incentives and Behavioral Economics, University of Pennsylvania, Philadelphia, PA, USA.,Leonard Davis Institute of Health Economics, University of Pennsylvania, Philadelphia, PA, USA
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Foglia EE, Ades A, Hedrick HL, Rintoul N, Munson D, Moldenhauer JS, Gebb J, Serletti B, Chaudhary A, Weinberg DD, Napolitano N, Fraga MV, Ratcliffe SJ. Initiating resuscitation before umbilical cord clamping in infants with congenital diaphragmatic hernia: a pilot feasibility trial. Arch Dis Child Fetal Neonatal Ed 2020; 105:322-326. [PMID: 31462406 PMCID: PMC7047568 DOI: 10.1136/archdischild-2019-317477] [Citation(s) in RCA: 24] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/25/2019] [Revised: 08/13/2019] [Accepted: 08/13/2019] [Indexed: 11/17/2022]
Abstract
BACKGROUND Infants with congenital diaphragmatic hernia (CDH) often experience hypoxaemia with acidosis immediately after birth. The traditional approach in the delivery room is immediate cord clamping followed by intubation. Initiating resuscitation prior to umbilical cord clamping (UCC) may support this transition. OBJECTIVES To establish the safety and feasibility of intubation and ventilation prior to UCC for infants with CDH. To compare short-term outcomes between trial participants and matched controls treated with immediate cord clamping before intubation and ventilation. DESIGN Single-arm, single-site trial of infants with CDH and gestational age ≥36 weeks. Infants were placed on a trolley immediately after birth and underwent intubation and ventilation, with UCC performed after qualitative CO2 detection. The primary feasibility endpoint was successful intubation prior to UCC. Prespecified safety and physiological outcomes were compared with historical controls matched for prognostic variables using standard bivariate tests. RESULTS Of 20 enrolled infants, all were placed on the trolley, and 17 (85%) infants were intubated before UCC. The first haemoglobin and mean blood pressure at 1 hour of life were significantly higher in trial participants than controls. There were no significant differences between groups for subsequent blood pressure values, vasoactive medications, inhaled nitric oxide or extracorporeal membrane oxygenation. Blood gas and oxygenation index values did not differ between groups at any point. CONCLUSIONS Intubation and ventilation prior to UCC is safe and feasible among infants with CDH. The impact of this approach on clinically relevant outcomes deserves investigation in a randomised trial.
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Affiliation(s)
| | - Anne Ades
- Children’s Hospital of Philadelphia, Philadelphia PA
| | | | | | - David Munson
- Children’s Hospital of Philadelphia, Philadelphia PA
| | | | - Juliana Gebb
- Children’s Hospital of Philadelphia, Philadelphia PA
| | | | | | | | | | | | - Sarah J. Ratcliffe
- Division of Biostatistics, Department of Public Health Sciences, University of Virginia, Charlottesville VA
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Muehling LM, Heymann PW, Wright PW, Eccles JD, Agrawal R, Carper HT, Murphy DD, Workman LJ, Word CR, Ratcliffe SJ, Capaldo BJ, Platts-Mills TAE, Turner RB, Kwok WW, Woodfolk JA. Human T H1 and T H2 cells targeting rhinovirus and allergen coordinately promote allergic asthma. J Allergy Clin Immunol 2020; 146:555-570. [PMID: 32320734 DOI: 10.1016/j.jaci.2020.03.037] [Citation(s) in RCA: 26] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/18/2019] [Revised: 03/03/2020] [Accepted: 03/27/2020] [Indexed: 02/06/2023]
Abstract
BACKGROUND Allergic asthmatic subjects are uniquely susceptible to acute wheezing episodes provoked by rhinovirus. However, the underlying immune mechanisms and interaction between rhinovirus and allergy remain enigmatic, and current paradigms are controversial. OBJECTIVE We sought to perform a comprehensive analysis of type 1 and type 2 innate and adaptive responses in allergic asthmatic subjects infected with rhinovirus. METHODS Circulating virus-specific TH1 cells and allergen-specific TH2 cells were precisely monitored before and after rhinovirus challenge in allergic asthmatic subjects (total IgE, 133-4692 IU/mL; n = 28) and healthy nonallergic controls (n = 12) using peptide/MHCII tetramers. T cells were sampled for up to 11 weeks to capture steady-state and postinfection phases. T-cell responses were analyzed in parallel with 18 cytokines in the nose, upper and lower airway symptoms, and lung function. The influence of in vivo IgE blockade was also examined. RESULTS In uninfected asthmatic subjects, higher numbers of circulating virus-specific PD-1+ TH1 cells, but not allergen-specific TH2 cells, were linked to worse lung function. Rhinovirus infection induced an amplified antiviral TH1 response in asthmatic subjects versus controls, with synchronized allergen-specific TH2 expansion, and production of type 1 and 2 cytokines in the nose. In contrast, TH2 responses were absent in infected asthmatic subjects who had normal lung function, and in those receiving anti-IgE. Across all subjects, early induction of a minimal set of nasal cytokines that discriminated high responders (G-CSF, IFN-γ, TNF-α) correlated with both egress of circulating virus-specific TH1 cells and worse symptoms. CONCLUSIONS Rhinovirus induces robust TH1 responses in allergic asthmatic subjects that may promote disease, even after the infection resolves.
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Affiliation(s)
- Lyndsey M Muehling
- Department of Medicine, University of Virginia School of Medicine, Charlottesville; Department of Microbiology, University of Virginia School of Medicine, Charlottesville
| | - Peter W Heymann
- Department of Pediatrics, University of Virginia School of Medicine, Charlottesville
| | - Paul W Wright
- Department of Medicine, University of Virginia School of Medicine, Charlottesville
| | - Jacob D Eccles
- Department of Medicine, University of Virginia School of Medicine, Charlottesville; Department of Microbiology, University of Virginia School of Medicine, Charlottesville
| | - Rachana Agrawal
- Department of Medicine, University of Virginia School of Medicine, Charlottesville
| | - Holliday T Carper
- Department of Pediatrics, University of Virginia School of Medicine, Charlottesville
| | - Deborah D Murphy
- Department of Pediatrics, University of Virginia School of Medicine, Charlottesville
| | - Lisa J Workman
- Department of Medicine, University of Virginia School of Medicine, Charlottesville
| | - Carolyn R Word
- Department of Pediatrics, University of Virginia School of Medicine, Charlottesville
| | - Sarah J Ratcliffe
- Department of Public Health Sciences, University of Virginia School of Medicine, Charlottesville
| | - Brian J Capaldo
- Department of Microbiology, University of Virginia School of Medicine, Charlottesville
| | | | - Ronald B Turner
- Department of Pediatrics, University of Virginia School of Medicine, Charlottesville
| | | | - Judith A Woodfolk
- Department of Medicine, University of Virginia School of Medicine, Charlottesville; Department of Microbiology, University of Virginia School of Medicine, Charlottesville.
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43
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Foglia EE, te Pas AB, Kirpalani H, Davis PG, Owen LS, van Kaam AH, Onland W, Keszler M, Schmölzer GM, Hummler H, Lista G, Dani C, Bastrenta P, Localio R, Ratcliffe SJ. Sustained Inflation vs Standard Resuscitation for Preterm Infants: A Systematic Review and Meta-analysis. JAMA Pediatr 2020; 174:e195897. [PMID: 32011661 PMCID: PMC7042947 DOI: 10.1001/jamapediatrics.2019.5897] [Citation(s) in RCA: 20] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
IMPORTANCE Most preterm infants require respiratory support to establish lung aeration after birth. Intermittent positive pressure ventilation and continuous positive airway pressure are standard therapies. An initial sustained inflation (inflation time >5 seconds) is a widely practiced alternative strategy. OBJECTIVE To conduct a systematic review and meta-analysis of sustained inflation vs intermittent positive pressure ventilation and continuous positive airway pressure for the prevention of hospital mortality and morbidity for preterm infants. DATA SOURCES MEDLINE (through PubMed), Embase, the Cumulative Index of Nursing and Allied Health Literature, and the Cochrane Central Register of Controlled Trials were searched through June 24, 2019. STUDY SELECTION Randomized clinical trials of preterm infants born at less than 37 weeks' gestation that compared sustained inflation (inflation time >5 seconds) vs standard resuscitation with either intermittent positive pressure ventilation or continuous positive airway pressure were included. Studies including other cointerventions were excluded. DATA EXTRACTION AND SYNTHESIS Two reviewers assessed the risk of bias of included studies. Meta-analysis of pooled outcome data used a fixed-effects model specific to rarer events. Subgroups were based on gestational age and study design (rescue vs prophylactic sustained inflation). MAIN OUTCOMES AND MEASURES Death before hospital discharge. RESULTS Nine studies recruiting 1406 infants met inclusion criteria. Death before hospital discharge occurred in 85 of 736 infants (11.5%) treated with sustained inflation and 62 of 670 infants (9.3%) who received standard therapy for a risk difference of 3.6% (95% CI, -0.7% to 7.9%). Although analysis of the primary outcome identified important heterogeneity based on gestational age subgroups, the 95% CI for the risk difference included 0 for each individual gestational age subgroup. There was no difference in the primary outcome between subgroups based on study design. Sustained inflation was associated with increased risk of death in the first 2 days after birth (risk difference, 3.1%; 95% CI, 0.9%-5.3%). No differences in the risk of other secondary outcomes were identified. The quality-of-evidence assessment was low owing to risk of bias and imprecision. CONCLUSIONS AND RELEVANCE There was no difference in the risk of the primary outcome of death before hospital discharge, and there was no evidence of efficacy for sustained inflation to prevent secondary outcomes. These findings do not support the routine use of sustained inflation for preterm infants after birth.
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Affiliation(s)
- Elizabeth E. Foglia
- Division of Neonatology, Department of Pediatrics, Perelman School of Medicine, University of Pennsylvania, Philadelphia
| | - Arjan B. te Pas
- Division of Neonatology, Department of Pediatrics, Leiden University, Leiden, the Netherlands
| | - Haresh Kirpalani
- Division of Neonatology, Department of Pediatrics, Perelman School of Medicine, University of Pennsylvania, Philadelphia
| | - Peter G. Davis
- Newborn Research Center, The Royal Women’s Hospital, Melbourne, Victoria, Australia
| | - Louise S. Owen
- Newborn Research Center, The Royal Women’s Hospital, Melbourne, Victoria, Australia
| | - Anton H. van Kaam
- Emma Children’s Hospital, Amsterdam University Medical Centers, University of Amsterdam, Amsterdam, the Netherlands
| | - Wes Onland
- Emma Children’s Hospital, Amsterdam University Medical Centers, University of Amsterdam, Amsterdam, the Netherlands
| | - Martin Keszler
- Department of Pediatrics, Women and Infants Hospital of Rhode Island, Alpert Medical School of Brown University, Providence
| | - Georg M. Schmölzer
- Department of Pediatrics, University of Alberta, Edmonton, Alberta, Canada
| | | | - Gianluca Lista
- Department of Pediatrics, Neonatal Intensive Care Unit, Ospedale dei Bambini V.Buzzi ASST-FBF-Sacco, Milan, Italy
| | - Carlo Dani
- Department of Neuroscience, Psychology, Pharmacology and Child Health, University of Florence, Florence, Italy
| | - Petrina Bastrenta
- Department of Pediatrics, Neonatal Intensive Care Unit, Ospedale dei Bambini V.Buzzi ASST-FBF-Sacco, Milan, Italy
| | - Russell Localio
- Department of Biostatistics and Epidemiology, Perelman School of Medicine, University of Pennsylvania, Philadelphia
| | - Sarah J. Ratcliffe
- Division of Biostatistics, Department of Public Health Sciences, University of Virginia, Charlottesville
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Foglia EE, Jensen EA, Wyckoff MH, Sawyer T, Topjian A, Ratcliffe SJ. Survival after delivery room cardiopulmonary resuscitation: A national registry study. Resuscitation 2020; 152:177-183. [PMID: 31982507 DOI: 10.1016/j.resuscitation.2020.01.010] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/10/2019] [Revised: 12/12/2019] [Accepted: 01/16/2020] [Indexed: 01/05/2023]
Abstract
AIMS Survival after delivery room cardiopulmonary resuscitation (DR-CPR) is not well characterized in full-term infants, and survival outcomes after DR-CPR have not been defined across the spectrum of gestation. The study objectives were to define gestational age (GA) specific survival following DR-CPR and to assess the association between GA and DR-CPR characteristics and survival outcomes. METHODS Retrospective cohort study of prospectively collected data in the American Heart Association Get With the Guidelines-Resuscitation registry. Newborn infants without congenital abnormalities who received greater than 1 min of chest compressions for DR-CPR were included. GA was stratified by categorical subgroups: ≥36 weeks; 33-356/7 weeks; 29-326/7 weeks; 25-286/7 weeks; 22-246/7 weeks. The primary outcome was survival to hospital discharge; the secondary outcome was return of circulation (ROC). RESULTS Among 1022 infants who received DR-CPR, 83% experienced ROC and 64% survived to hospital discharge. GA-stratified hospital survival rates were 83% (≥36 weeks), 66% (33-35 weeks), 60% (29-32 weeks), 52% (25-28 weeks), and 25% (22-24 weeks). Compared with GA ≥ 36 weeks, lower GA was independently associated with decreasing odds of survival (33-35 weeks: adjusted Odds Ratio [aOR] 0.46, 95% Confidence Interval [CI] 0.26-0.81; 29-32 weeks: aOR 0.40, 95% CI 0.23-0.69; 25-28 weeks: aOR 0.21, 95% CI 0.11-0.41; 22-24 weeks: aOR 0.06, 95% CI 0.03-0.10). CONCLUSIONS In this national registry of infants who received delivery room cardiopulmonary resuscitation (DR-CPR), 83% survived the event and two-thirds survived to hospital discharge. These results contribute to defining survival outcomes following DR-CPR across the continuum of gestation.
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Affiliation(s)
- Elizabeth E Foglia
- Division of Neonatology, Children's Hospital of Philadelphia, Philadelphia, PA, United States.
| | - Erik A Jensen
- Division of Neonatology, Children's Hospital of Philadelphia, Philadelphia, PA, United States
| | - Myra H Wyckoff
- Division of Neonatology, Department of Pediatrics, UT Southwestern, Dallas, TX, United States
| | - Taylor Sawyer
- Department of Pediatrics, School of Medicine, University of Washington, Seattle, WA, United States
| | - Alexis Topjian
- Divsion of Critical Care Medicine, Children's Hospital of Philadelphia, Philadelphia, PA, United States
| | - Sarah J Ratcliffe
- Division of Biostatistics, Department of Public Health Sciences, University of Virginia, Charlottesville, VA, United States
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Zimmet AM, Sullivan BA, Moorman JR, Lake DE, Ratcliffe SJ. Trajectories of the heart rate characteristics index, a physiomarker of sepsis in premature infants, predict Neonatal ICU mortality. JRSM Cardiovasc Dis 2020; 9:2048004020945142. [PMID: 33240492 PMCID: PMC7675854 DOI: 10.1177/2048004020945142] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/25/2019] [Revised: 06/25/2020] [Accepted: 07/02/2020] [Indexed: 11/16/2022] Open
Abstract
OBJECTIVE Trajectories of physiomarkers over time can be useful to define phenotypes of disease progression and as predictors of clinical outcomes. The aim of this study was to identify phenotypes of the time course of late-onset sepsis in premature infants in Neonatal Intensive Care Units. METHODS We examined the trajectories of a validated continuous physiomarker, abnormal heart rate characteristics, using functional data analysis and clustering techniques. PARTICIPANTS We analyzed continuous heart rate characteristics data from 2989 very low birth weight infants (<1500 grams) from nine NICUs from 2004-2010. RESULT Despite the relative homogeneity of the patients, we found extreme variability in the physiomarker trajectories. We identified phenotypes that were indicative of seven and 30 day mortality beyond that predicted by individual heart rate characteristics values or baseline demographic information. CONCLUSION Time courses of a heart rate characteristics physiomarker reveal snapshots of illness patterns, some of which were more deadly than others.
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Yadav A, Kossenkov AV, Knecht VR, Showe LC, Ratcliffe SJ, Montaner LJ, Tebas P, Collman RG. Evidence for Persistent Monocyte and Immune Dysregulation After Prolonged Viral Suppression Despite Normalization of Monocyte Subsets, sCD14 and sCD163 in HIV-Infected Individuals. Pathog Immun 2019; 4:324-362. [PMID: 31893252 PMCID: PMC6930814 DOI: 10.20411/pai.v4i2.336] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/23/2019] [Accepted: 11/21/2019] [Indexed: 12/18/2022] Open
Abstract
BACKGROUND People living with HIV on antiretroviral therapy (HIV/ART) experience excess non-AIDS comorbidities, and also remain at increased risk for certain infections and viral malignancies. Monocytes/macrophages are central to many of these comorbidities, and elevated plasma cytokines and immune activation during untreated infection are often incompletely reversed by ART and are also associated with comorbidities. METHODS We investigated monocyte surface markers, gene expression, and plasma cytokines in 11 HIV-infected older individuals (median 53 years) who started therapy with low CD4 counts (median 129 cells/µl), with elevated hsCRP (≥ 2mg/L) despite long-term ART (median 7.4 years), along with matched controls. RESULTS Frequency of monocyte subsets (based on CD14/CD16/CD163), were not different from controls, but surface expression of CD163 was increased (P = 0.021) while PD1 was decreased (P = 0.013) along with a trend for higher tissue factor (P = 0.096). As a group, HIV/ART participants had elevated plasma CCL2 (MCP-1; P = 0.0001), CXCL9 (MIG; P = 0.04), and sIL2R (P = 0.015), which were correlated, while sCD14 was not elevated. Principal component analysis of soluble markers revealed that 6/11 HIV/ART participants clustered with controls, while 5 formed a distinct group, driven by IL-10, CCL11, CXCL10, CCL2, CXCL9, and sIL2R. These individuals were significantly older than those clustering with controls. Transcriptomic analysis revealed multiple genes linked to immune functions including inflammation, immune cell development, and cell-cell signaling that were downregulated in HIV/ART monocytes and distinct from patterns in untreated subjects. CONCLUSIONS Long-term ART-treated individuals normalize monocyte subsets but exhibit immune dysregulation involving both aberrant inflammation and monocyte dysfunction, as well as inter-individual heterogeneity, suggesting complex mechanisms linking monocytes and HIV/ART comorbidities.
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Affiliation(s)
- Anjana Yadav
- Department of Medicine; University of Pennsylvania Perelman School of Medicine; Philadelphia, Pennsylvania
| | | | - Vincent R Knecht
- Department of Medicine; University of Pennsylvania Perelman School of Medicine; Philadelphia, Pennsylvania
| | | | - Sarah J Ratcliffe
- Department of Biostatistics and Epidemiology; University of Pennsylvania Perelman School of Medicine; Philadelphia, Pennsylvania
| | | | - Pablo Tebas
- Department of Medicine; University of Pennsylvania Perelman School of Medicine; Philadelphia, Pennsylvania
| | - Ronald G Collman
- Department of Medicine; University of Pennsylvania Perelman School of Medicine; Philadelphia, Pennsylvania
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47
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Chen CJ, Ding D, Ironside N, Buell TJ, Elder LJ, Warren A, Adams AP, Ratcliffe SJ, James RF, Naval NS, Worrall BB, Johnston KC, Southerland AM. Statins for neuroprotection in spontaneous intracerebral hemorrhage. Neurology 2019; 93:1056-1066. [PMID: 31712367 DOI: 10.1212/wnl.0000000000008627] [Citation(s) in RCA: 25] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/22/2019] [Accepted: 07/24/2019] [Indexed: 12/14/2022] Open
Abstract
Statins, a common drug class for treatment of dyslipidemia, may be neuroprotective for spontaneous intracerebral hemorrhage (ICH) by targeting secondary brain injury pathways in the surrounding brain parenchyma. Statin-mediated neuroprotection may stem from downregulation of mevalonate and its derivatives, targeting key cell signaling pathways that control proliferation, adhesion, migration, cytokine production, and reactive oxygen species generation. Preclinical studies have consistently demonstrated the neuroprotective and recovery enhancement effects of statins, including improved neurologic function, reduced cerebral edema, increased angiogenesis and neurogenesis, accelerated hematoma clearance, and decreased inflammatory cell infiltration. Retrospective clinical studies have reported reduced perihematomal edema, lower mortality rates, and improved functional outcomes in patients who were taking statins before ICH. Several clinical studies have also observed lower mortality rates and improved functional outcomes in patients who were continued or initiated on statins after ICH. Subgroup analysis of a previous randomized trial has raised concerns of a potentially elevated risk of recurrent ICH in patients with previous hemorrhagic stroke who are administered statins. However, most statin trials failed to show an association between statin use and increased hemorrhagic stroke risk. Variable statin dosing, statin use in the pre-ICH setting, and selection biases have limited rigorous investigation of the effects of statins on post-ICH outcomes. Future prospective trials are needed to investigate the association between statin use and outcomes in ICH.
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Affiliation(s)
- Ching-Jen Chen
- From the Department of Neurological Surgery (C.-J.C., N.I., T.J.B.), University of Virginia Health System, Charlottesville, VA; Department of Neurological Surgery (D.D., R.F.J.), University of Louisville School of Medicine, Louisville, KY; Clinical Trials Office (L.J.E., A.W.), University of Virginia School of Medicine; Department of Pharmacology (A.P.A.), University of Virginia Health System, Charlottesville, VA; Department of Public Health Sciences (S.J.R., B.B.W., A.M.S.), University of Virginia School of Medicine, Charlottesville, VA; Department of Neurosurgery (N.S.N.), Baptist Health, Jacksonville, FL; and Department of Neurology (B.B.W., K.C.J., A.M.S.), University of Virginia Health System, Charlottesville, VA.
| | - Dale Ding
- From the Department of Neurological Surgery (C.-J.C., N.I., T.J.B.), University of Virginia Health System, Charlottesville, VA; Department of Neurological Surgery (D.D., R.F.J.), University of Louisville School of Medicine, Louisville, KY; Clinical Trials Office (L.J.E., A.W.), University of Virginia School of Medicine; Department of Pharmacology (A.P.A.), University of Virginia Health System, Charlottesville, VA; Department of Public Health Sciences (S.J.R., B.B.W., A.M.S.), University of Virginia School of Medicine, Charlottesville, VA; Department of Neurosurgery (N.S.N.), Baptist Health, Jacksonville, FL; and Department of Neurology (B.B.W., K.C.J., A.M.S.), University of Virginia Health System, Charlottesville, VA
| | - Natasha Ironside
- From the Department of Neurological Surgery (C.-J.C., N.I., T.J.B.), University of Virginia Health System, Charlottesville, VA; Department of Neurological Surgery (D.D., R.F.J.), University of Louisville School of Medicine, Louisville, KY; Clinical Trials Office (L.J.E., A.W.), University of Virginia School of Medicine; Department of Pharmacology (A.P.A.), University of Virginia Health System, Charlottesville, VA; Department of Public Health Sciences (S.J.R., B.B.W., A.M.S.), University of Virginia School of Medicine, Charlottesville, VA; Department of Neurosurgery (N.S.N.), Baptist Health, Jacksonville, FL; and Department of Neurology (B.B.W., K.C.J., A.M.S.), University of Virginia Health System, Charlottesville, VA
| | - Thomas J Buell
- From the Department of Neurological Surgery (C.-J.C., N.I., T.J.B.), University of Virginia Health System, Charlottesville, VA; Department of Neurological Surgery (D.D., R.F.J.), University of Louisville School of Medicine, Louisville, KY; Clinical Trials Office (L.J.E., A.W.), University of Virginia School of Medicine; Department of Pharmacology (A.P.A.), University of Virginia Health System, Charlottesville, VA; Department of Public Health Sciences (S.J.R., B.B.W., A.M.S.), University of Virginia School of Medicine, Charlottesville, VA; Department of Neurosurgery (N.S.N.), Baptist Health, Jacksonville, FL; and Department of Neurology (B.B.W., K.C.J., A.M.S.), University of Virginia Health System, Charlottesville, VA
| | - Lori J Elder
- From the Department of Neurological Surgery (C.-J.C., N.I., T.J.B.), University of Virginia Health System, Charlottesville, VA; Department of Neurological Surgery (D.D., R.F.J.), University of Louisville School of Medicine, Louisville, KY; Clinical Trials Office (L.J.E., A.W.), University of Virginia School of Medicine; Department of Pharmacology (A.P.A.), University of Virginia Health System, Charlottesville, VA; Department of Public Health Sciences (S.J.R., B.B.W., A.M.S.), University of Virginia School of Medicine, Charlottesville, VA; Department of Neurosurgery (N.S.N.), Baptist Health, Jacksonville, FL; and Department of Neurology (B.B.W., K.C.J., A.M.S.), University of Virginia Health System, Charlottesville, VA
| | - Amy Warren
- From the Department of Neurological Surgery (C.-J.C., N.I., T.J.B.), University of Virginia Health System, Charlottesville, VA; Department of Neurological Surgery (D.D., R.F.J.), University of Louisville School of Medicine, Louisville, KY; Clinical Trials Office (L.J.E., A.W.), University of Virginia School of Medicine; Department of Pharmacology (A.P.A.), University of Virginia Health System, Charlottesville, VA; Department of Public Health Sciences (S.J.R., B.B.W., A.M.S.), University of Virginia School of Medicine, Charlottesville, VA; Department of Neurosurgery (N.S.N.), Baptist Health, Jacksonville, FL; and Department of Neurology (B.B.W., K.C.J., A.M.S.), University of Virginia Health System, Charlottesville, VA
| | - Amy P Adams
- From the Department of Neurological Surgery (C.-J.C., N.I., T.J.B.), University of Virginia Health System, Charlottesville, VA; Department of Neurological Surgery (D.D., R.F.J.), University of Louisville School of Medicine, Louisville, KY; Clinical Trials Office (L.J.E., A.W.), University of Virginia School of Medicine; Department of Pharmacology (A.P.A.), University of Virginia Health System, Charlottesville, VA; Department of Public Health Sciences (S.J.R., B.B.W., A.M.S.), University of Virginia School of Medicine, Charlottesville, VA; Department of Neurosurgery (N.S.N.), Baptist Health, Jacksonville, FL; and Department of Neurology (B.B.W., K.C.J., A.M.S.), University of Virginia Health System, Charlottesville, VA
| | - Sarah J Ratcliffe
- From the Department of Neurological Surgery (C.-J.C., N.I., T.J.B.), University of Virginia Health System, Charlottesville, VA; Department of Neurological Surgery (D.D., R.F.J.), University of Louisville School of Medicine, Louisville, KY; Clinical Trials Office (L.J.E., A.W.), University of Virginia School of Medicine; Department of Pharmacology (A.P.A.), University of Virginia Health System, Charlottesville, VA; Department of Public Health Sciences (S.J.R., B.B.W., A.M.S.), University of Virginia School of Medicine, Charlottesville, VA; Department of Neurosurgery (N.S.N.), Baptist Health, Jacksonville, FL; and Department of Neurology (B.B.W., K.C.J., A.M.S.), University of Virginia Health System, Charlottesville, VA
| | - Robert F James
- From the Department of Neurological Surgery (C.-J.C., N.I., T.J.B.), University of Virginia Health System, Charlottesville, VA; Department of Neurological Surgery (D.D., R.F.J.), University of Louisville School of Medicine, Louisville, KY; Clinical Trials Office (L.J.E., A.W.), University of Virginia School of Medicine; Department of Pharmacology (A.P.A.), University of Virginia Health System, Charlottesville, VA; Department of Public Health Sciences (S.J.R., B.B.W., A.M.S.), University of Virginia School of Medicine, Charlottesville, VA; Department of Neurosurgery (N.S.N.), Baptist Health, Jacksonville, FL; and Department of Neurology (B.B.W., K.C.J., A.M.S.), University of Virginia Health System, Charlottesville, VA
| | - Neeraj S Naval
- From the Department of Neurological Surgery (C.-J.C., N.I., T.J.B.), University of Virginia Health System, Charlottesville, VA; Department of Neurological Surgery (D.D., R.F.J.), University of Louisville School of Medicine, Louisville, KY; Clinical Trials Office (L.J.E., A.W.), University of Virginia School of Medicine; Department of Pharmacology (A.P.A.), University of Virginia Health System, Charlottesville, VA; Department of Public Health Sciences (S.J.R., B.B.W., A.M.S.), University of Virginia School of Medicine, Charlottesville, VA; Department of Neurosurgery (N.S.N.), Baptist Health, Jacksonville, FL; and Department of Neurology (B.B.W., K.C.J., A.M.S.), University of Virginia Health System, Charlottesville, VA
| | - Bradford B Worrall
- From the Department of Neurological Surgery (C.-J.C., N.I., T.J.B.), University of Virginia Health System, Charlottesville, VA; Department of Neurological Surgery (D.D., R.F.J.), University of Louisville School of Medicine, Louisville, KY; Clinical Trials Office (L.J.E., A.W.), University of Virginia School of Medicine; Department of Pharmacology (A.P.A.), University of Virginia Health System, Charlottesville, VA; Department of Public Health Sciences (S.J.R., B.B.W., A.M.S.), University of Virginia School of Medicine, Charlottesville, VA; Department of Neurosurgery (N.S.N.), Baptist Health, Jacksonville, FL; and Department of Neurology (B.B.W., K.C.J., A.M.S.), University of Virginia Health System, Charlottesville, VA
| | - Karen C Johnston
- From the Department of Neurological Surgery (C.-J.C., N.I., T.J.B.), University of Virginia Health System, Charlottesville, VA; Department of Neurological Surgery (D.D., R.F.J.), University of Louisville School of Medicine, Louisville, KY; Clinical Trials Office (L.J.E., A.W.), University of Virginia School of Medicine; Department of Pharmacology (A.P.A.), University of Virginia Health System, Charlottesville, VA; Department of Public Health Sciences (S.J.R., B.B.W., A.M.S.), University of Virginia School of Medicine, Charlottesville, VA; Department of Neurosurgery (N.S.N.), Baptist Health, Jacksonville, FL; and Department of Neurology (B.B.W., K.C.J., A.M.S.), University of Virginia Health System, Charlottesville, VA
| | - Andrew M Southerland
- From the Department of Neurological Surgery (C.-J.C., N.I., T.J.B.), University of Virginia Health System, Charlottesville, VA; Department of Neurological Surgery (D.D., R.F.J.), University of Louisville School of Medicine, Louisville, KY; Clinical Trials Office (L.J.E., A.W.), University of Virginia School of Medicine; Department of Pharmacology (A.P.A.), University of Virginia Health System, Charlottesville, VA; Department of Public Health Sciences (S.J.R., B.B.W., A.M.S.), University of Virginia School of Medicine, Charlottesville, VA; Department of Neurosurgery (N.S.N.), Baptist Health, Jacksonville, FL; and Department of Neurology (B.B.W., K.C.J., A.M.S.), University of Virginia Health System, Charlottesville, VA
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Gray-Miceli DL, Ratcliffe SJ, Smith ML, Rogowski J. ACHIEVING THE TRIPLE AIM THROUGH A FALLS PREVENTION INNOVATION IN LONG-TERM CARE. Innov Aging 2019. [PMCID: PMC6840567 DOI: 10.1093/geroni/igz038.1769] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
Abstract
Falls disproportionately burden frail older adults in long-term care, which is evidenced by the 60% fall rate annually in this setting. Our health systems improvement model, framed by the Health Outcomes Model for falls prevention, is targeted to achieve the triple aim of better health, better care, and better value. Highlighting evidence from three inter-related studies, this presentation describes the impact of a practice change model and its impact on patient, unit/staff, and organizational level factors as related to facility-wide falls prevention. In study one, we used an evidenced-based practice approach and assessment tool to achieve total and recurrent falls reduction over one year by 32% and 25%, respectively (p<0.001). In study two, the annual savings of using this approach was assessed and showed a total savings of $53,531.00, which equates to $700.00 per falling person. In pilot study three, a convenience sample of 15 older adults who were interviewed about their fall by nurses using this approach stated they felt valued and that the nurse cared about their story (n= 6; 40%). Purposive efforts to embed the model and effective strategies for adoption and implementation are presented.
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Affiliation(s)
| | | | - Matthew L Smith
- Center for Population Health and Aging, Texas A&M University, College Station, Texas, United States
| | - Jeannette Rogowski
- The Pennsylvania State University, University Park, Pennsylvania, United States
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Abstract
BACKGROUND In randomized clinical trials among critically ill patients, it is uncertain how choices regarding the measurement and analysis of nonmortal outcomes measured in terms of duration, such as intensive care unit (ICU) length of stay (LOS), affect studies' conclusions. OBJECTIVES Assess the definitions and analytic methods used for ICU LOS analyses in published randomized clinical trials. RESEARCH DESIGN This is a systematic review and statistical simulation study. RESULTS Among the 80 of 150 trials providing sufficient information regarding the chosen definition of ICU LOS, 3 different start times (ICU admission, trial enrollment/randomization, receipt of intervention) and 2 end times (discharge readiness, actual discharge) were used. In roughly three quarters of these studies, ICU LOS was compared using approaches that did not explicitly account for death, either by ignoring it entirely or stratifying the analyses by survival status. The remaining studies used time-to-event (discharge) models censoring at death or applied a fixed LOS value to patients who died. In statistical simulations, we showed that each analytic approach tested a different question regarding ICU LOS, and that approaches that do not explicitly account for death often produce misleading or ambiguous conclusions when treatments produce small effects on mortality, even if those are not detected as significant in the trial. CONCLUSIONS There is considerable variability in how ICU LOS is measured and analyzed which impairs the ability to compare results across trials and can produce spurious conclusions. Analyses of duration-based outcomes such as LOS should jointly assess the impact of the intervention on mortality to yield correct interpretations.
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Affiliation(s)
- Michael O Harhay
- Department of Biostatistics, Epidemiology and Informatics, University of Pennsylvania Perelman School of Medicine
- Palliative and Advanced Illness Research (PAIR) Center, University of Pennsylvania, Philadelphia, PA
| | - Sarah J Ratcliffe
- Department of Public Health Sciences, University of Virginia, Division of Biostatistics, Charlottesville, VA
| | - Dylan S Small
- Palliative and Advanced Illness Research (PAIR) Center, University of Pennsylvania, Philadelphia, PA
- Department of Statistics, Wharton School, University of Pennsylvania, Philadelphia, PA
| | - Leah H Suttner
- Department of Biostatistics, Epidemiology and Informatics, University of Pennsylvania Perelman School of Medicine
| | - Michael J Crowther
- Biostatistics Research Group, Department of Health Sciences, Centre for Medicine, University of Leicester, Leicester, UK
| | - Scott D Halpern
- Department of Biostatistics, Epidemiology and Informatics, University of Pennsylvania Perelman School of Medicine
- Palliative and Advanced Illness Research (PAIR) Center, University of Pennsylvania, Philadelphia, PA
- Department of Medicine, Division of Pulmonary, Allergy, and Critical Care Medicine
- Department of Medical Ethics and Health Policy, University of Pennsylvania Perelman School of Medicine, Philadelphia, PA
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50
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Zhou Q, Ratcliffe SJ, Grady C, Wang T, Mao JJ, Ulrich CM. Cancer Clinical Trial Patient-Participants' Perceptions about Provider Communication and Dropout Intentions. AJOB Empir Bioeth 2019; 10:190-200. [PMID: 31180295 DOI: 10.1080/23294515.2019.1618417] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
Abstract
Objective: To study the relationship between cancer patient/research participants' perceptions of communication with their research nurse and doctor and (1) participants' thoughts of dropping out from their cancer clinical trials (CCTs), (2) how informed they felt before and during their clinical trial participation, and (3) trust in their researchers. Methods: We surveyed 110 adult cancer patients who were enrolled in cancer clinical trials by using 15 modified items from the Medical Communication Competence Scale measuring information exchange and relational communication. Retention was measured by two items: ever thought about dropping out (yes/no) and likelihood of remaining enrolled in the clinical trial (5-point Likert item). We asked how well informed about the trial participants felt at enrollment, at the date they filled out the survey, and about changes in the trial. Results: Patient-participants with thoughts of dropping out from their CCTs rated their communication with research doctors lower than those who did not have thoughts of dropping out (4.14 versus 4.46, t = 2.22, p = 0.03). Patient-participants' intention to remain enrolled was correlated with more favorable scores on relational communication (such as contributing to a trusting relationship and showing compassion) with research doctors (r = 0.20, p = 0.04) and nurses (r = 0.25, p = 0.01). Communication with doctors was also associated with how informed patient-participants felt during their clinical trials. Conclusions: Relational communication with research doctors and nurses was significantly related to thoughts about remaining enrolled or dropping out of a clinical trial among adult participants in cancer treatment clinical trials. Practice Implications: Relational communication with cancer patients advances retention in research.
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Affiliation(s)
- Qiuping Zhou
- a George Washington University , Washington , DC , USA
| | | | - Christine Grady
- c National Institutes of Health, Bioethics, Clinical Center , Bethesda , Maryland , USA
| | - Tianhao Wang
- d Perelman School of Medicine, University of Pennsylvania , Philadelphia , Pennsylvania , USA
| | - Jun J Mao
- e Memorial Sloan Kettering Cancer Center , New York , New York , USA
| | - Connie M Ulrich
- d Perelman School of Medicine, University of Pennsylvania , Philadelphia , Pennsylvania , USA.,f School of Nursing, University of Pennsylvania , Philadelphia , Pennsylvania , USA
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