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Mogos MF, Ahn S, Park C, LaNoue M, Osmundson S, Muchira JM. Twenty-Four-Hour Ambulatory Blood Pressure Monitoring Parameters During Pregnancy: A Pilot Study. J Womens Health (Larchmt) 2024. [PMID: 38624221 DOI: 10.1089/jwh.2023.0921] [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] [Indexed: 04/17/2024] Open
Abstract
Introduction: Maternal blood pressure (BP) is a critical cardiovascular marker with profound implications for maternal and fetal well-being, particularly in the detection of hypertensive disorders during pregnancy. Although conventional clinic-based BP (CBP) measurements have traditionvally been used, monitoring 24-hour ambulatory BP (ABP) has emerged as a more reliable method for assessing BP levels and diagnosing conditions such as gestational hypertension and preeclampsia/eclampsia. This study aimed to assess the feasibility and acceptability of 24-hour ABP monitoring in pregnant women and report on various ABP parameters, including ambulatory blood pressure variability (ABPV). Method: A prospective cross-sectional study design was employed, involving 55 multipara pregnant women with and without prior adverse pregnancy outcomes (APOs). The participants underwent baseline assessments, including anthropometrics, resting CBP measurements, and the placement of ABP and actigraphy devices. Following a 24-hour period with these devices, participants shared their experiences to gauge device acceptability. Pregnancy outcomes were collected postpartum. Results: Twenty-four-hour ABP monitoring before 20 weeks of gestation is feasible for women with and without prior APOs. Although some inconvenience was noted, the majority of participants wore the ABP monitoring device for the entire 24-hour period. Pregnant women who later experienced APOs exhibited higher 24-hour ABP and ABPV values in the early stages of pregnancy. Conclusion: The study highlights the potential benefits of 24-hour ABP monitoring as a valuable tool in prenatal care, emphasizing the need for further research in this area.
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Affiliation(s)
- Mulubrhan F Mogos
- Center for Research Development and Scholarship, School of Nursing, Vanderbilt University, Nashville, Tennessee, USA
| | - Soojung Ahn
- Center for Research Development and Scholarship, School of Nursing, Vanderbilt University, Nashville, Tennessee, USA
| | - Chorong Park
- Center for Research Development and Scholarship, School of Nursing, Vanderbilt University, Nashville, Tennessee, USA
| | - Marianna LaNoue
- Center for Research Development and Scholarship, School of Nursing, Vanderbilt University, Nashville, Tennessee, USA
| | - Sarah Osmundson
- Department of Obstetrics and Gynecology, Vanderbilt University Medical Center, Nashville, Tennessee, USA
| | - James M Muchira
- Center for Research Development and Scholarship, School of Nursing, Vanderbilt University, Nashville, Tennessee, USA
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Sutter C, Freundlich RE, Raymond BL, Osmundson S, Morton C, McIlroy DR, Shotwell M, Feng X, Bauchat JR. Effectiveness of Oral Iron Therapy in Anemic Inpatient Pregnant Women: A Single Center Retrospective Cohort Study. Cureus 2024; 16:e56879. [PMID: 38659546 PMCID: PMC11041524 DOI: 10.7759/cureus.56879] [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] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 03/25/2024] [Indexed: 04/26/2024] Open
Abstract
Background and aim Oral iron therapy is effective in treating iron deficiency anemia in outpatient pregnant women but has not been studied in inpatient pregnant women. We aimed to evaluate the effect of oral iron therapy versus no therapy during hospitalization on maternal and neonatal outcomes in women with anemia who are hospitalized for pregnancy-related morbidities (i.e., preterm premature rupture of membranes, preterm labor, pre-eclampsia, abnormal placentation, or fetal monitoring). Methods A retrospective, single-center study was conducted in hospitalized pregnant women (2018 to 2020) with inpatient stays of more than three days. The primary outcome was a change in hemoglobin level from admission to delivery in women treated with oral iron compared with those left untreated. Secondary outcomes included the total amount of iron administered before delivery, the time interval from admission to delivery, and neonatal effects. Results Two hundred sixty-three women were admitted, 79 women had anemia, and 29 (36.7%) received at least one dose of oral iron. Baseline patient characteristics were similar between groups. The median (interquartile range) dose of iron in the oral iron group was 1185.0 (477.0, 1874.0) mg. Neither absolute hemoglobin before delivery (control group: 10.0±1.2 g/dL; iron group: 10.1±1.1 g/dL; p=0.774) nor change in hemoglobin from admission to delivery (control group: -0.1±1.1 g/dL vs. iron group: 0.4±1.1 g/dL; p=0.232) differed between groups. Women in the control group had shorter length of stay (LOS) median (IQR) than women in the iron group (control group: 7.1 (5.0, 13.7) days; iron group: 11.4 (7.4, 25.9) days; p=0.03). There were no differences in maternal mode of delivery, though each group had high rates of cesarean delivery (control group: 53.7%; iron group: 72.4%; p=0.181). There were no differences in estimated blood loss at delivery (control group: 559±401; iron group: 662.1±337.4;p=0.264) in either group. Neonatal birthweight (control group: 1.9±0.7 kg; iron group: 1.9±0.7 kg; p=0.901), birth hemoglobin (control group: 16.3±2.2 g/dL; iron group: 16±2.2 g/dL; p=0.569), neonatal intensive care unit (NICU) admission (control group: 93.3%; iron group: 84.8%;p=0.272 ), or neonatal death (control group: 8.9%; iron group: 3%; p=0.394) were not different between groups. Conclusions Oral iron administered to anemic inpatient pregnant women was not associated with higher hemoglobin concentrations before delivery. Lack of standardized iron regimens and short hospital stays may contribute to the inefficacy of oral iron for this inpatient pregnant population. The small sample size and retrospective nature of this study are limiting factors in drawing conclusive evidence from this study.
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Affiliation(s)
- Claire Sutter
- Anesthesiology, Vanderbilt University Medical Center, Nashville, USA
| | | | - Britany L Raymond
- Anesthesiology, Vanderbilt University Medical Center, Nashville, USA
| | - Sarah Osmundson
- Maternal Fetal Medicine, Vanderbilt University Medical Center, Nashville, USA
| | - Colleen Morton
- Hematology, Vanderbilt University Medical Center, Nashville, USA
| | - David R McIlroy
- Anesthesiology, Vanderbilt University Medical Center, Nashville, USA
| | - Matthew Shotwell
- Biostatistics, Vanderbilt University Medical Center, Nashville, USA
| | - Xiaoke Feng
- Biostatistics, Vanderbilt University Medical Center, Nashville, USA
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Mogos MF, Muchira JM, Park C, Osmundson S, Piano MR. Age-Stratified Sex Differences in Heart Failure With Preserved Ejection Fraction Among Adult Hospitalizations. J Cardiovasc Nurs 2024:00005082-990000000-00163. [PMID: 38200643 DOI: 10.1097/jcn.0000000000001069] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/12/2024]
Abstract
BACKGROUND There is evidence that heart failure with preserved ejection fraction (HFpEF)-related hospitalizations are increasing in the United States. However, there is a lack of knowledge about HFpEF-related hospitalizations among younger adults. OBJECTIVE The aims of this study were to perform a retrospective analysis using the Nationwide Inpatient Sample and to examine age-stratified sex differences in the prevalence, correlates, and outcomes of HFpEF-related hospitalization across the adult life span. METHOD Using the Nationwide Inpatient Sample (2002-2014), patient and hospital characteristics were determined. Joinpoint regression was used to describe age-stratified sex differences in the annual average percent change of hospitalizations with HFpEF. Survey logistic regression was used to estimate adjusted odds ratios representing the association of sex with HFpEF-related hospitalization and in-hospital mortality. RESULTS There were 8 599 717 HFpEF-related hospitalizations (2.43% of all hospitalizations). Women represented the majority (5 459 422 [63.48%]) of HFpEF-related adult hospitalizations, compared with men (3 140 295 [36.52%]). Compared with men younger than 50 years, women within the same age group were 6% to 28% less likely to experience HFpEF-related hospitalization. Comorbidities such as hypertensive heart disease, renal disease, hypertension, obstructive sleep apnea, atrial fibrillation, obesity, anemia, and pulmonary edema explained a greater proportion of the risk of HFpEF-related hospitalization in adults younger than 50 years than in adults 50 years or older. CONCLUSION Before the age of 50 years, women exhibit lower HFpEF-related hospitalization than men, a pattern that reverses with advancing age. Understanding and addressing the factors contributing to these sex-specific differences can have several potential implications for improving women's cardiovascular health.
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Panah LG, O’Leary J, Levack M, Brennan K, Osmundson S, Thompson J, Lindley K. Treatment of Severe Symptomatic Aortic Stenosis During Pregnancy: A Potential Role for TAVR? JACC Case Rep 2023; 28:102134. [PMID: 38204540 PMCID: PMC10774886 DOI: 10.1016/j.jaccas.2023.102134] [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] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/06/2023] [Revised: 10/10/2023] [Accepted: 10/24/2023] [Indexed: 01/12/2024]
Abstract
A 35-year-old woman presented at 22 weeks gestation with severe symptomatic aortic stenosis with a mean gradient of 94 mm Hg and an aortic valve area of 0.53 cm2. After multidisciplinary discussion, she underwent transcatheter aortic valve replacement during pregnancy.
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Affiliation(s)
- Lindsay G. Panah
- Department of Medicine, Division of Cardiology, Vanderbilt University Medical Center, Nashville, Tennessee, USA
| | - Jared O’Leary
- Department of Medicine, Division of Cardiology, Vanderbilt University Medical Center, Nashville, Tennessee, USA
| | - Melissa Levack
- Department of Cardiac Surgery, Section of Surgical Sciences, Vanderbilt University Medical Center, Nashville, Tennessee, USA
| | - Kaitlyn Brennan
- Department of Anesthesiology, Vanderbilt University Medical Center, Nashville, Tennessee, USA
| | - Sarah Osmundson
- Department of Obstetrics and Gynecology, Vanderbilt University Medical Center, Nashville, Tennessee, USA
| | - Jennifer Thompson
- Department of Obstetrics and Gynecology, Vanderbilt University Medical Center, Nashville, Tennessee, USA
| | - Kathryn Lindley
- Department of Medicine, Division of Cardiology, Vanderbilt University Medical Center, Nashville, Tennessee, USA
- Department of Obstetrics and Gynecology, Vanderbilt University Medical Center, Nashville, Tennessee, USA
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Lewis JV, Knapp EA, Bakre S, Dickerson AS, Bastain TM, Bendixsen C, Bennett DH, Camargo CA, Cassidy-Bushrow AE, Colicino E, D'Sa V, Dabelea D, Deoni S, Dunlop AL, Elliott AJ, Farzan SF, Ferrara A, Fry RC, Hartert T, Howe CG, Kahn LG, Karagas MR, Ma TF, Koinis-Mitchell D, MacKenzie D, Maldonado LE, Merced-Nieves FM, Neiderhiser JM, Nigra AE, Niu Z, Nozadi SS, Rivera-Núñez Z, O'Connor TG, Osmundson S, Padula AM, Peterson AK, Sherris AR, Starling A, Straughen JK, Wright RJ, Zhao Q, Kress AM. Associations between area-level arsenic exposure and adverse birth outcomes: An Echo-wide cohort analysis. Environ Res 2023; 236:116772. [PMID: 37517496 PMCID: PMC10592196 DOI: 10.1016/j.envres.2023.116772] [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] [Subscribe] [Scholar Register] [Received: 05/06/2023] [Revised: 06/20/2023] [Accepted: 07/27/2023] [Indexed: 08/01/2023]
Abstract
BACKGROUND Drinking water is a common source of exposure to inorganic arsenic. In the US, the Safe Drinking Water Act (SDWA) was enacted to protect consumers from exposure to contaminants, including arsenic, in public water systems (PWS). The reproductive effects of preconception and prenatal arsenic exposure in regions with low to moderate arsenic concentrations are not well understood. OBJECTIVES This study examined associations between preconception and prenatal exposure to arsenic violations in water, measured via residence in a county with an arsenic violation in a regulated PWS during pregnancy, and five birth outcomes: birth weight, gestational age at birth, preterm birth, small for gestational age (SGA), and large for gestational age (LGA). METHODS Data for arsenic violations in PWS, defined as concentrations exceeding 10 parts per billion, were obtained from the Safe Drinking Water Information System. Participants of the Environmental influences on Child Health Outcomes Cohort Study were matched to arsenic violations by time and location based on residential history data. Multivariable, mixed effects regression models were used to assess the relationship between preconception and prenatal exposure to arsenic violations in drinking water and birth outcomes. RESULTS Compared to unexposed infants, continuous exposure to arsenic from three months prior to conception through birth was associated with 88.8 g higher mean birth weight (95% CI: 8.2, 169.5), after adjusting for individual-level confounders. No statistically significant associations were observed between any preconception or prenatal violations exposure and gestational age at birth, preterm birth, SGA, or LGA. CONCLUSIONS Our study did not identify associations between preconception and prenatal arsenic exposure, defined by drinking water exceedances, and adverse birth outcomes. Exposure to arsenic violations in drinking water was associated with higher birth weight. Future studies would benefit from more precise geodata of water system service areas, direct household drinking water measurements, and exposure biomarkers.
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Affiliation(s)
- Jonathan V Lewis
- Department of Epidemiology, Johns Hopkins University Bloomberg School of Public Health, Baltimore, MD, USA
| | - Emily A Knapp
- Department of Epidemiology, Johns Hopkins University Bloomberg School of Public Health, Baltimore, MD, USA
| | - Shivani Bakre
- Department of Epidemiology, Johns Hopkins University Bloomberg School of Public Health, Baltimore, MD, USA
| | - Aisha S Dickerson
- Department of Epidemiology, Johns Hopkins University Bloomberg School of Public Health, Baltimore, MD, USA
| | - Theresa M Bastain
- Department of Population and Public Health Sciences, University of Southern California, Los Angeles, CA, USA
| | - Casper Bendixsen
- Marshfield Clinic Research Institute, Marshfield Clinic Health System, Marshfield, WI, USA
| | - Deborah H Bennett
- Department of Public Health Sciences, University of California Davis, Davis, CA, USA
| | - Carlos A Camargo
- Department of Emergency Medicine, Massachusetts General Hospital, Harvard Medical School, Boston, MA, USA
| | | | - Elena Colicino
- Department of Environmental Medicine and Public Health, Icahn School of Medicine at Mount Sinai, New York, NY, USA; Institute for Exposomic Research, Icahn School of Medicine at Mount Sinai, New York, NY, USA
| | - Viren D'Sa
- Department of Pediatrics, Rhode Island Hospital, Providence, RI, USA
| | - Dana Dabelea
- Lifecourse Epidemiology of Adiposity and Diabetes (LEAD) Center, University of Colorado Anschutz Medical Campus, Denver, CO, USA
| | - Sean Deoni
- Bill and Melinda Gates Foundation, Seattle, WA, USA
| | - Anne L Dunlop
- Department of Gynecology and Obstetrics, Emory University School of Medicine, Atlanta, GA, USA
| | - Amy J Elliott
- Avera Research Institute, Sioux Falls, SD, USA; Department of Pediatrics, University of South Dakota School of Medicine, Vermillion, SD, USA
| | - Shohreh F Farzan
- Department of Population and Public Health Sciences, University of Southern California, Los Angeles, CA, USA
| | - Assiamira Ferrara
- Division of Research, Kaiser Permanente Northern California, Oakland, CA, USA
| | - Rebecca C Fry
- Department of Environmental Sciences and Engineering, University of North Carolina Gillings School of Global Public Health, Chapel Hill, NC, USA
| | - Tina Hartert
- Departments of Medicine and Pediatrics, Vanderbilt University Medical Center, Nashville, TN, USA
| | - Caitlin G Howe
- Dartmouth College Geisel School of Medicine, Hanover, NH, USA
| | - Linda G Kahn
- Departments of Pediatrics and Population Health, NYU Grossman School of Medicine, New York, NY, USA
| | | | - Teng-Fei Ma
- Department of Epidemiology and Biostatistics, Michigan State University, East Lansing, MI, USA
| | | | - Debra MacKenzie
- Community Environmental Health Program, University of New Mexico College of Pharmacy, Health Sciences Center, Albuquerque, NM, USA
| | - Luis E Maldonado
- Department of Population and Public Health Sciences, University of Southern California, Los Angeles, CA, USA
| | - Francheska M Merced-Nieves
- Department of Environmental Medicine and Public Health, Icahn School of Medicine at Mount Sinai, New York, NY, USA; Department of Pediatrics, Icahn School of Medicine at Mount Sinai, New York, NY, USA
| | | | - Anne E Nigra
- Department of Environmental Health Sciences, Columbia University Mailman School of Public Health, New York, NY, USA
| | - Zhongzheng Niu
- Department of Population and Public Health Sciences, University of Southern California, Los Angeles, CA, USA
| | - Sara S Nozadi
- Community Environmental Health Program, College of Pharmacy, Health Sciences Center, Albuquerque, NM, USA
| | - Zorimar Rivera-Núñez
- Department of Biostatistics and Epidemiology, Rutgers School of Public Health, New Brunswick, NJ, USA
| | - Thomas G O'Connor
- Departments of Psychiatry, Neuroscience, Obstetrics and Gynecology, University of Rochester, Rochester, NY, USA
| | - Sarah Osmundson
- Department of OB/GYN, Vanderbilt University School of Medicine, Nashville, TN, USA
| | - Amy M Padula
- Department of Gynecology, Obstetrics and Reproductive Sciences, University of California San Francisco School of Medicine, San Francisco, CA, USA
| | - Alicia K Peterson
- Division of Research, Kaiser Permanente Northern California, Oakland, CA, USA
| | - Allison R Sherris
- Department of Environmental and Occupational Health Sciences, University of Washington, Seattle, WA, USA
| | - Anne Starling
- Department of Epidemiology, University of North Carolina Gillings School of Global Public Health, Chapel Hill, NC, USA
| | | | - Rosalind J Wright
- Department of Environmental Medicine and Public Health, Icahn School of Medicine at Mount Sinai, New York, NY, USA; Institute for Exposomic Research, Icahn School of Medicine at Mount Sinai, New York, NY, USA
| | - Qi Zhao
- Department of Preventive Medicine, University of Tennessee Health Science Center College of Medicine, Memphis, TN, USA
| | - Amii M Kress
- Department of Epidemiology, Johns Hopkins University Bloomberg School of Public Health, Baltimore, MD, USA.
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Mogos MF, Ahn S, Muchira JM, Osmundson S, Piano MR. Pregnancy-Associated Takotsubo Cardiomyopathy Hospitalizations in the United States. Am J Physiol Heart Circ Physiol 2023. [PMID: 37417872 DOI: 10.1152/ajpheart.00262.2023] [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] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 07/08/2023]
Abstract
Takotsubo cardiomyopathy (TCM) is most common in postmenopausal women aged ≥ 50 years but also affects pregnant individuals. However, there are no national estimates on the prevalence, timing of occurrence, correlates, and outcomes of Pregnancy-associated TCM. Using the Nationwide Inpatient Sample (NIS: 2016-2020), we describe rates of pregnancy-associated TCM hospitalizations among 13 - 49 years old pregnant individuals in the United States by selected demographic, behavioral, hospital, and clinical characteristics. Joinpoint regression was used to describe the Annual Average Percent Change of pregnancy-associated TCM hospitalizations. Survey logistic regression was used to measure the association of pregnancy-associated TCM hospitalizations with maternal outcomes. Of the 19,754,535 pregnancy-associated hospitalizations, 590 were TCM-associated. The overall trend in pregnancy-associated TCM hospitalizations remained stable during the study period. The majority of TCM occurred during the postpartum, followed by antepartum and delivery-associated hospitalizations. Compared to pregnancy hospitalizations without TCM, those with TCM were more likely to be over the age of 35 years and use tobacco and opioids. Comorbidities during TCM-associated pregnancy hospitalizations included heart failure, coronary artery disease, hemorrhagic stroke, and hypertension. After controlling for potential confounders, the odds of pregnancy-associated TCM hospitalizations were 98.7 times (aOR 98.66, 95% CI: 31.23, 311.64) and 14.7 times (aOR 14.75, 95% CI: 9.99, 21.76) higher for experiencing in-hospital mortality and a prolonged hospital stay, respectively, than those without TCM. Although rare, pregnancy-associated TCM hospitalization is more likely to occur during the postpartum period and is associated with in-hospital mortality and prolonged hospital stay.
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Affiliation(s)
| | | | | | | | - Mariann R Piano
- Vanderbilt University School of Nursing, Nashville, TN, United States
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7
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Weidenbaum C, Cann CG, Osmundson S, Iams WT, Osterman T. Two Uncomplicated Pregnancies on Alectinib in a Woman With Metastatic ALK-Rearranged NSCLC: A Case Report. JTO Clin Res Rep 2022; 3:100361. [PMID: 35814861 PMCID: PMC9264015 DOI: 10.1016/j.jtocrr.2022.100361] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/19/2022] [Revised: 06/07/2022] [Accepted: 06/09/2022] [Indexed: 11/18/2022] Open
Abstract
Lung cancer incidence is increasing in pregnancy due in part to advanced maternal age. A subset of patients with NSCLC during pregnancy harbor an ALK gene rearrangement. Although ALK inhibitors, such as alectinib, are routinely used to treat ALK-rearranged NSCLC, there are limited safety data regarding use during pregnancy and fetal effects. Here, we report the second case of a patient with metastatic ALK-rearranged lung adenocarcinoma treated with alectinib throughout pregnancy. Notably, the patient had two uncomplicated pregnancies with routine obstetrical and postnatal courses. In this case, alectinib did not seem to affect embryofetal or early childhood development. This does not exclude undetectable or delayed toxic effects, and additional studies are needed to further reveal the safety of alectinib treatment during pregnancy.
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Barnado A, Hubbard J, Green S, Camai A, Wheless L, Osmundson S. Systemic Lupus Erythematosus Delivery Outcomes Are Unchanged Across Three Decades. ACR Open Rheumatol 2022; 4:711-720. [PMID: 35670028 PMCID: PMC9374054 DOI: 10.1002/acr2.11447] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/17/2022] [Revised: 03/08/2022] [Accepted: 04/13/2022] [Indexed: 12/14/2022] Open
Abstract
Objective Using a large, de‐identified electronic health record database with over 3.2 million patients, we aimed to identify trends of systemic lupus erythematosus (SLE) medication use during pregnancy and birth outcomes from 1989 to 2020. Methods Using a previously validated algorithm for SLE deliveries, we identified 255 pregnancies in patients with SLE and 604 pregnancies in controls with no known autoimmune diseases. We examined demographics, medications, SLE comorbidities, and maternal and fetal outcomes in SLE and control deliveries. Results Compared with control deliveries, SLE deliveries were more likely to be complicated by preterm delivery (odds ratio [OR]: 6.71; 95% confidence interval [CI]: 4.31‐10.55; P < 0.001) and preeclampsia (OR: 3.22; 95% CI: 1.83‐5.66; P < 0.001) after adjusting for age at delivery, race, and parity. In a longitudinal analysis, medication use during SLE pregnancies remained relatively stable, with some increased use of hydroxychloroquine over time but no increase in aspirin use. For SLE deliveries, preterm delivery and preeclampsia rates remained stable. Conclusion We observed rates of preeclampsia and preterm delivery in SLE that were five times higher than the general population and higher compared with other prospective SLE cohorts. Furthermore, we did not observe improved outcomes over time with preeclampsia and preterm delivery. Despite increasing evidence for universal use of hydroxychloroquine and aspirin, we did not observe substantially higher use of these medications over time, particularly for aspirin. Our results demonstrate the continued need to prioritize educational and implementation efforts to improve adverse pregnancy outcomes in SLE.
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Affiliation(s)
- April Barnado
- Vanderbilt University Medical CenterNashvilleTennessee
| | - Janie Hubbard
- Vanderbilt University Medical CenterNashvilleTennessee
| | - Sarah Green
- Vanderbilt University Medical CenterNashvilleTennessee
| | - Alex Camai
- Vanderbilt University Medical CenterNashvilleTennessee
| | - Lee Wheless
- Vanderbilt University Medical CenterNashvilleTennessee
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9
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Gao C, Osmundson S, Malin BA, Chen Y. Telehealth Use in the COVID-19 Pandemic: A Retrospective Study of Prenatal Care. Stud Health Technol Inform 2022; 290:503-507. [PMID: 35673066 PMCID: PMC9213108 DOI: 10.3233/shti220127] [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] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
Telehealth is an alternative care delivery model to in-person care. It uses electronic information and telecommunication technologies to provide remote clinical care to patients, especially those living in rural areas that lack sufficient access to health care services. Like other areas of care affected by the COVID-19 pandemic, the prevalence of telehealth has increased in prenatal care. This study reports on telehealth use in prenatal care at a large academic medical center in Middle Tennessee, USA. We examine the electronic health records of over 2500 women to characterize 1) the volume of prenatal visits participating in telehealth, 2) disparities in obstetric patients using telehealth, and 3) the impact of telehealth use on obstetric outcomes, including duration of intrapartum hospital stays, preterm birth, Cesarean rate, and newborn birthweight. Our results show that telehealth mainly was used in the second and third trimesters, especially for consulting services. In addition, we found that certain demographics correlated with lower telehealth utilization, including patients who were under 26 years old, were Black and/or Hispanic, were on a state-sponsored health insurance program, and those who lived in urban areas. Furthermore, no significant differences were found on preterm birth and Cesarean between the patients who used telehealth in their prenatal care and those who did not.
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Affiliation(s)
- Cheng Gao
- Department of Biomedical Informatics, Vanderbilt University Medical Center, Nashville, TN, United States
| | - Sarah Osmundson
- Department of Obstetrics and Gynecology, Vanderbilt University Medical Center, Nashville, TN, United States
| | - Bradley A. Malin
- Department of Biomedical Informatics, Vanderbilt University Medical Center, Nashville, TN, United States
- Department of Biostatistics, Vanderbilt University Medical Center, Nashville, TN, United States
- Department of Electrical Engineering and Computer Science, Vanderbilt University, Nashville, TN, United States
| | - You Chen
- Department of Biomedical Informatics, Vanderbilt University Medical Center, Nashville, TN, United States
- Department of Electrical Engineering and Computer Science, Vanderbilt University, Nashville, TN, United States
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10
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Jeong E, Osmundson S, Gao C, Edwards DRV, Malin B, Chen Y. Learning the impact of acute and chronic diseases on forecasting neonatal encephalopathy. Comput Methods Programs Biomed 2021; 211:106397. [PMID: 34530389 PMCID: PMC8551018 DOI: 10.1016/j.cmpb.2021.106397] [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] [Subscribe] [Scholar Register] [Received: 05/04/2021] [Accepted: 08/30/2021] [Indexed: 06/13/2023]
Abstract
OBJECTIVE There is a wide range of risk factors predisposing to the onset of neonatal encephalopathy (NE), including maternal antepartum/intrapartum comorbidities or events. However, few studies have investigated the difference in the impact of acute and chronic diseases on forecasting NE, which could assist clinicians in choosing the best course of action to prevent NE or reduce its severity and complications. In this study, we aimed to engineer features based on acute and chronic diseases and assess the differences of the impact of acute and chronic diseases on NE prediction using machine learning models. MATERIALS AND METHODS We used ten years of electronic health records of mothers from a large academic medical center to develop three types of features: chronic disease, recurrence of an acute disease, and temporal relationships between acute diseases. Two types of NE prediction models, based on acute and chronic diseases, respectively, were trained with feature selection. We further compared the prediction performance of the models with two state-of-the-art NE forecasting models. The machine learning models ranked the three types of engineered features based on their contributions to the NE prediction. RESULTS The NE model trained on acute disease features showed significantly higher AUC than the model relying on chronic disease features (AUC difference: 0.161, p-value < 0.001). The NE model trained on both acute and chronic disease features achieved the highest average AUC (0.889), with a significant improvement over the best existing model (0.854) with p = 0.0129. Recurrence of "known or suspected fetal abnormality affecting management of mother (655)" was assigned the highest weights in predicting NE. CONCLUSIONS Machine learning models based on the three types of engineered features significantly improve NE prediction. Our results specifically suggest that acute disease-associated features play a more important role in predicting NE.
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Affiliation(s)
- Eugene Jeong
- Department of Biomedical Informatics, School of Medicine, Vanderbilt University Medical Center, Nashville, TN, United States
| | - Sarah Osmundson
- Department of Obstetrics and Gynecology, School of Medicine, Vanderbilt University Medical Center, Nashville, TN, United States
| | - Cheng Gao
- Department of Biomedical Informatics, School of Medicine, Vanderbilt University Medical Center, Nashville, TN, United States
| | - Digna R Velez Edwards
- Department of Biomedical Informatics, School of Medicine, Vanderbilt University Medical Center, Nashville, TN, United States; Department of Obstetrics and Gynecology, School of Medicine, Vanderbilt University Medical Center, Nashville, TN, United States
| | - Bradley Malin
- Department of Biomedical Informatics, School of Medicine, Vanderbilt University Medical Center, Nashville, TN, United States; Department of Biostatistics, School of Medicine, Vanderbilt University, Nashville, TN, United States; Department of Computer Science, School of Engineering, Vanderbilt University, Nashville, TN, United States
| | - You Chen
- Department of Biomedical Informatics, School of Medicine, Vanderbilt University Medical Center, Nashville, TN, United States; Department of Computer Science, School of Engineering, Vanderbilt University, Nashville, TN, United States.
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11
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Patrick SW, Dupont WD, McNeer E, McPheeters M, Cooper WO, Aronoff DM, Osmundson S, Stein BD. Association of Individual and Community Factors With Hepatitis C Infections Among Pregnant People and Newborns. JAMA Health Forum 2021; 2:e213470. [PMID: 35977167 PMCID: PMC8727040 DOI: 10.1001/jamahealthforum.2021.3470] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/01/2021] [Accepted: 09/05/2021] [Indexed: 12/12/2022] Open
Abstract
Importance The opioid crisis has increasingly affected pregnant people and infants. Hepatitis C virus (HCV) infections, a known complication of opioid use, grew in parallel with opioid-related complications; however, the literature informing individual and community risks associated with maternal HCV infection is sparse. Objectives To determine (1) individual and county-level factors associated with HCV among pregnant people and their newborn infants, and (2) how county-level factors influence individual risk among the highest risk individuals. Design Setting and Participants This time-series analysis of retrospective, repeated cross-sectional data included pregnant people in all US counties from 2009 to 2019. We constructed mixed-effects logistic regression models to explore the association between HCV infection and individual and county-level covariates. Analyses were conducted between June 2019 and September 2021. Exposures Individual-level: race and ethnicity, education, marital status, insurance type; county-level: rurality, employment, density of obstetricians. Main Outcomes and Measures Hepatitis C virus as indicated on the newborn's birth certificate. Results Between 2009 and 2019, there were 39 380 122 pregnant people who met inclusion criteria, among whom 138 343 (0.4%) were diagnosed with HCV. People with HCV were more likely to be White (79.9% vs 53.5%), American Indian or Alaska Native (AI/AN) (2.9% vs 0.9%), be without a 4-year degree (93.2% vs 68.6%), and be unmarried (73.7% vs 38.8%). The rate (per 1000 live births) of HCV among pregnant people increased from 1.8 to 5.1. In adjusted analyses, the following factors were associated with higher rates of HCV: individuals identified as White (adjusted odds ratio [aOR], 7.37; 95% CI, 7.20-7.55) and AI/AN (aOR, 7.94; 95% CI, 7.58-8.31) compared with Black individuals, those without a 4-year degree (aOR, 3.19; 95% CI, 3.11-3.28), those with Medicaid vs private insurance (aOR, 3.27; 95% CI, 3.21-3.33), and those who were unmarried (aOR, 2.80; 95% CI, 2.76-2.84); whereas, rural residence, higher rates of employment, and greater density of obstetricians was associated with lower risk of HCV. Among individuals at the highest risk of HCV, higher levels of county employment, accounting for other factors, were associated with less of a rise in HCV infections over time. Conclusions and Relevance In this cross-sectional study, maternal and newborn HCV infections increased substantially between 2009 and 2019, disproportionately among White and AI/AN people without a 4-year degree. County-level factors, including higher levels of employment, were associated with lower individual risks of acquiring the virus.
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Affiliation(s)
- Stephen W. Patrick
- Vanderbilt Center for Child Health Policy, Vanderbilt University Medical Center, Nashville, Tennessee,Department of Pediatrics, Vanderbilt University Medical Center, Nashville, Tennessee,Department of Health Policy, Vanderbilt University Medical Center, Nashville, Tennessee,RAND Corporation, Pittsburgh, Pennsylvania
| | - William D. Dupont
- Vanderbilt Center for Child Health Policy, Vanderbilt University Medical Center, Nashville, Tennessee,Department of Biostatistics, Vanderbilt University Medical Center, Nashville, Tennessee
| | - Elizabeth McNeer
- Vanderbilt Center for Child Health Policy, Vanderbilt University Medical Center, Nashville, Tennessee,Department of Biostatistics, Vanderbilt University Medical Center, Nashville, Tennessee
| | - Melissa McPheeters
- Vanderbilt Center for Child Health Policy, Vanderbilt University Medical Center, Nashville, Tennessee,Department of Health Policy, Vanderbilt University Medical Center, Nashville, Tennessee
| | - William O. Cooper
- Vanderbilt Center for Child Health Policy, Vanderbilt University Medical Center, Nashville, Tennessee,Department of Pediatrics, Vanderbilt University Medical Center, Nashville, Tennessee,Department of Health Policy, Vanderbilt University Medical Center, Nashville, Tennessee
| | - David M. Aronoff
- Department of Medicine, Division of Infectious Disease, Vanderbilt University Medical Center, Nashville, Tennessee,Department of Obstetrics and Gynecology, Vanderbilt University Medical Center, Nashville, Tennessee
| | - Sarah Osmundson
- Department of Obstetrics and Gynecology, Vanderbilt University Medical Center, Nashville, Tennessee
| | - Bradley D. Stein
- RAND Corporation, Pittsburgh, Pennsylvania,University of Pittsburgh School of Medicine, Pittsburgh, Pennsylvania
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12
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Hufnagel D, Shultes K, Morton C, Osmundson S, Beeghly-Fadiel A, Brown A, Prescott L. Improving compliance with NCCN guidelines for anemia evaluation among gynecologic oncology patients. Gynecol Oncol 2021. [DOI: 10.1016/s0090-8258(21)01000-3] [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: 11/16/2022]
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13
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Lauder J, Sciscione A, Biggio J, Osmundson S, Osmundson S. Society for Maternal-Fetal Medicine Consult Series #50: The role of activity restriction in obstetric management: (Replaces Consult Number 33, August 2014). Am J Obstet Gynecol 2020; 223:B2-B10. [PMID: 32360110 DOI: 10.1016/j.ajog.2020.04.031] [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: 10/24/2022]
Abstract
Despite current recommendations against its use, activity restriction remains a common intervention used to prevent preterm birth in multiple clinical settings. Hypertensive disorders of pregnancy, preterm premature rupture of membranes, multiple gestations, vaginal bleeding, short cervical length, placenta previa, and fetal growth restriction are also common reasons for antepartum hospital admission and frequently lead to a recommendation for activity restriction. However, numerous reports have shown that activity restriction does not prevent adverse obstetrical outcomes but does confer significant physical and psychosocial risks. This consult reviews the current literature on activity restriction and examines the evidence regarding its use in obstetrical management. The recommendations by the Society for Maternal-Fetal Medicine are as follows: (1) we recommend against the routine use of any type of activity restriction in pregnant women at risk of preterm birth based on preterm labor symptoms, arrested preterm labor, or shortened cervix (GRADE 1B); (2) we recommend against the use of routine inpatient hospitalization and activity restriction for the prevention of preterm birth in women with multiple gestations (GRADE 1A); and (3) given the lack of data definitively demonstrating that activity restriction improves perinatal outcome in pregnancies complicated by fetal growth restriction, preterm premature rupture of membranes, or hypertensive diseases of pregnancy, coupled with evidence of adverse effects of activity restriction, we suggest that activity restriction not be prescribed for the treatment of pregnancies complicated by fetal growth restriction, preterm premature rupture of membranes, or hypertensive disease (GRADE 2B).
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Affiliation(s)
| | | | | | | | - Sarah Osmundson
- Society for Maternal-Fetal Medicine, 409 12 St. SW, Washington, DC 20024, USA.
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14
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Gao C, Osmundson S, Velez Edwards DR, Jackson GP, Malin BA, Chen Y. Deep learning predicts extreme preterm birth from electronic health records. J Biomed Inform 2019; 100:103334. [PMID: 31678588 DOI: 10.1016/j.jbi.2019.103334] [Citation(s) in RCA: 36] [Impact Index Per Article: 7.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/17/2019] [Revised: 09/23/2019] [Accepted: 10/29/2019] [Indexed: 11/26/2022]
Abstract
OBJECTIVE Models for predicting preterm birth generally have focused on very preterm (28-32 weeks) and moderate to late preterm (32-37 weeks) settings. However, extreme preterm birth (EPB), before the 28th week of gestational age, accounts for the majority of newborn deaths. We investigated the extent to which deep learning models that consider temporal relations documented in electronic health records (EHRs) can predict EPB. STUDY DESIGN EHR data were subject to word embedding and a temporal deep learning model, in the form of recurrent neural networks (RNNs) to predict EPB. Due to the low prevalence of EPB, the models were trained on datasets where controls were undersampled to balance the case-control ratio. We then applied an ensemble approach to group the trained models to predict EPB in an evaluation setting with a nature EPB ratio. We evaluated the RNN ensemble models with 10 years of EHR data from 25,689 deliveries at Vanderbilt University Medical Center. We compared their performance with traditional machine learning models (logistical regression, support vector machine, gradient boosting) trained on the datasets with balanced and natural EPB ratio. Risk factors associated with EPB were identified using an adjusted odds ratio. RESULTS The RNN ensemble models trained on artificially balanced data achieved a higher AUC (0.827 vs. 0.744) and sensitivity (0.965 vs. 0.682) than those RNN models trained on the datasets with naturally imbalanced EPB ratio. In addition, the AUC (0.827) and sensitivity (0.965) of the RNN ensemble models were better than the AUC (0.777) and sensitivity (0.819) of the best baseline models trained on balanced data. Also, risk factors, including twin pregnancy, short cervical length, hypertensive disorder, systemic lupus erythematosus, and hydroxychloroquine sulfate, were found to be associated with EPB at a significant level. CONCLUSION Temporal deep learning can predict EPB up to 8 weeks earlier than its occurrence. Accurate prediction of EPB may allow healthcare organizations to allocate resources effectively and ensure patients receive appropriate care.
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Affiliation(s)
- Cheng Gao
- Department of Biomedical Informatics, School of Medicine, Vanderbilt University Medical Center, Nashville, TN, USA
| | - Sarah Osmundson
- Department of Obstetrics and Gynecology, School of Medicine, Vanderbilt University Medical Center, Nashville, TN, USA
| | - Digna R Velez Edwards
- Department of Biomedical Informatics, School of Medicine, Vanderbilt University Medical Center, Nashville, TN, USA; Department of Obstetrics and Gynecology, School of Medicine, Vanderbilt University Medical Center, Nashville, TN, USA
| | - Gretchen Purcell Jackson
- Department of Biomedical Informatics, School of Medicine, Vanderbilt University Medical Center, Nashville, TN, USA; Departments of Pediatric Surgery and Pediatrics, School of Medicine, Vanderbilt University Medical Center, Nashville, TN, USA; Evaluation Research Center, IBM Watson Health, Cambridge, MA, USA
| | - Bradley A Malin
- Department of Biomedical Informatics, School of Medicine, Vanderbilt University Medical Center, Nashville, TN, USA; Department of Biostatistics, School of Medicine, Vanderbilt University Medical Center, Nashville, TN, USA; Department of Electrical Engineering & Computer Science, School of Engineering, Vanderbilt University, Nashville, TN, USA
| | - You Chen
- Department of Biomedical Informatics, School of Medicine, Vanderbilt University Medical Center, Nashville, TN, USA.
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15
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Gao C, Osmundson S, Yan X, Edwards DV, Malin BA, Chen Y. Learning to Identify Severe Maternal Morbidity from Electronic Health Records. Stud Health Technol Inform 2019; 264:143-147. [PMID: 31437902 PMCID: PMC7337420 DOI: 10.3233/shti190200] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
Severe maternal morbidity (SMM) is broadly defined as significant complications in pregnancy that have an adverse effect on women's health. Identifying women who experience SMM and reviewing their obstetric care can assist healthcare organizations in recognizing risk factors and best practices for management. Various definitions of SMM have been posited, but there is no consensus. Existing definitions are further limited in that they 1) are often rooted in existing clinical knowledge (which is problematic as many risk factors remain unknown), leading to poor positive predictive performance (PPV), and 2) have limited scalability as they often require substantial chart review. Thus, in this paper, a machine learning framework was introduced to automatically identify SMM and relevant risk factors from electronic health records (EHRs). We evaluated this framework with EHR data from 45,858 deliveries at a large academic medical center. The framework outperformed a state-of-the-art model from the U.S. Centers for Disease Control and Prevention (AUC of 0.94 vs. 0.80). Specially, it improved upon PPV by 59% (CDC: 0.22 vs. our model: 0.35). In the process, we revealed several novel SMM indicators, including disorders of fluid or electrolytes, systemic inflammatory response syndrome, and acidosis.
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Affiliation(s)
- Cheng Gao
- Department of Biomedical Informatics, Vanderbilt University Medical Center, Nashville, TN, United States
| | - Sarah Osmundson
- Department of Obstetrics and Gynecology, Vanderbilt University Medical Center, Nashville, TN, United States
| | - Xiaowei Yan
- Sutter Research, Development and Dissemination, Sacramento, CA, United States
| | - Digna Velez Edwards
- Department of Biomedical Informatics, Vanderbilt University Medical Center, Nashville, TN, United States.,Department of Obstetrics and Gynecology, Vanderbilt University Medical Center, Nashville, TN, United States
| | - Bradley A Malin
- Department of Biomedical Informatics, Vanderbilt University Medical Center, Nashville, TN, United States.,Sutter Research, Development and Dissemination, Sacramento, CA, United States.,Department of Biostatistics, Vanderbilt University Medical Center, Nashville, TN, United States
| | - You Chen
- Department of Biomedical Informatics, Vanderbilt University Medical Center, Nashville, TN, United States
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16
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Gao C, Osmundson S, Yan X, Edwards DV, Malin BA, Chen Y. Leveraging Electronic Health Records to Learn Progression Path for Severe Maternal Morbidity. Stud Health Technol Inform 2019; 264:148-152. [PMID: 31437903 PMCID: PMC7309346 DOI: 10.3233/shti190201] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
Severe maternal morbidity (SMM) encompasses a wide range of serious health complications that would likely result in death without in-time medical attention. It has been recognized that various demographic factors (e.g., age and race) and medical conditions (e.g., preeclampsia and organ failure) are associated with SMM. However, how medical conditions develop into SMM is seldom investigated. We hypothesize that SMM has a progression path, which is associated with a sequence of risk factors rather than a set of independent individual factors. We implemented a data-driven framework that leverages electronic health records (EHRs) in the antepartum period to learn the temporal patterns and measure their relationships with SMM during the delivery hospitalization. We evaluate the framework with two years of data from 6,184 women who had delivery hospitalizations at Vanderbilt University Medical Center. We discovered 69 temporal patterns, 12 of which were confirmed to be significantly associated with SMM.
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Affiliation(s)
- Cheng Gao
- Department of Biomedical Informatics, Vanderbilt University Medical Center, Nashville, TN, United States
| | - Sarah Osmundson
- Department of Obstetrics and Gynecology, Vanderbilt University Medical Center, Nashville, TN, United States
| | - Xiaowei Yan
- Sutter Research, Development and Dissemination, Sacramento, CA, United States
| | - Digna Velez Edwards
- Department of Biomedical Informatics, Vanderbilt University Medical Center, Nashville, TN, United States.,Department of Obstetrics and Gynecology, Vanderbilt University Medical Center, Nashville, TN, United States
| | - Bradley A Malin
- Department of Biomedical Informatics, Vanderbilt University Medical Center, Nashville, TN, United States.,Department of Biostatistics, Vanderbilt University Medical Center, Nashville, TN, United States.,Department of Electrical Engineering and Computer Science, Vanderbilt University, Nashville, TN, United States
| | - You Chen
- Department of Biomedical Informatics, Vanderbilt University Medical Center, Nashville, TN, United States
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17
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Gao C, Kho AN, Osmundson S, Malin BA, Chen Y. Obstetric Patients with Repetitious Hospital Location Transfers Have Prolonged Stays. IEEE Int Conf Healthc Inform 2019; 2019:10.1109/ICHI.2019.8904557. [PMID: 32524087 PMCID: PMC7286595 DOI: 10.1109/ichi.2019.8904557] [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] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
There is a general belief that the workflow of surrounding location transfers between locations documented in electronic health record (EHR) during hospitalization is associated with a patient's length of stay (LOS). However, this belief has had little formal investigation in a data-driven manner. Location transfers in patients' hospitalization are hypothesized to be related to LOS. The objective of this study is to assess this relationship, using data derived from the EHR system of a large hospital system, with a focus on the obstetric setting - a clinical environment that exhibits wide swing in resource utilization. We designed a data-driven framework to infer patterns of location transfers and developed a zero-truncated negative binomial model, adjusting for demographics and billed diagnoses, to learn the association between patterns of location transfers and LOS. Indicative factors found to be of indicative of location transfer patterns were further investigated via their odds ratios, Pearson Correlation Coefficients, and Chi-squared test. We evaluated our approach with two years of data on from 5,774 obstetric inpatient encounters from the EHR system of Northwestern Memorial Hospital. The results indicated that the average LOS for patients with patterns of repetitious location transfers (RLTs) was 4.25 days (95% confidence interval [4.02, 4.47]) longer than patients with no RLT. This difference reduced to 3.62 days (95% confidence interval [3.61, 3.64]) after adjusting for age, race and billed diagnoses. We further discovered 21 indicative factors of RLT (statistically significant with a significance level of 0.05), in the form of billed diagnosis codes, each of which exhibited an odds ratio larger than 4. This study suggests that RLT patterns are associated with a prolonged LOS in the obstetric setting. As such, healthcare organizations may need to pay more attention to patients with RLTs to refine location transfers workflow and to boost efficiency in obstetric care.
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Affiliation(s)
- Cheng Gao
- Department of Biomedical Informatics Vanderbilt University
| | - Abel N Kho
- Institute for Public Health and Medicine Northwestern University
| | - Sarah Osmundson
- Department of Obstetrics and Gynecology Vanderbilt University Medical Center
| | | | - You Chen
- Department of Biomedical Informatics Vanderbilt University
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18
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Halasa N, Piya B, Osmundson S, Markus T, Ndi D, Schaffner W. Comparison of early-onset vs. late-onset GBS disease. Am J Obstet Gynecol 2018. [DOI: 10.1016/j.ajog.2018.10.048] [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: 10/27/2022]
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19
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Li T, Gao C, Yan C, Osmundson S, Malin BA, Chen Y. Predicting Neonatal Encephalopathy From Maternal Data in Electronic Medical Records. AMIA Jt Summits Transl Sci Proc 2018; 2017:359-368. [PMID: 29888094 PMCID: PMC5961831] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Grants] [Figures] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Abstract
Neonatal encephalopathy (NE) is a leading cause of neonatal mortality and lifetime neurological disability. The earlier the risk of NE can be assessed, the more effective interventions can be in preventing adverse outcomes. Existing studies that focus on intrapartum risk factors do not provide the early prognostic forecasting necessary to prepare healthcare professionals to intervene early in a high-risk NE case. This work used maternal data in a supervised machine learning framework to predict NE events. Specifically, we 1) collected the electronic medical records (EMRs) for 104 NE newborns and 31,054 non-NE newborns and their mothers, 2) trained and tested a regularized logistic regression on imbalanced and high-dimensional EMR data, and 3) discerned important features that could be possible risk factors. The learned model offers prenatal predictions of NE cases with an average area under the receiving operator characteristic curve (AUC) of 87% and identified the most important predictors.
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Affiliation(s)
| | | | - Chao Yan
- Vanderbilt University, Nashville, TN
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20
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Merriman A, Wang L, Gregory R, Osmundson S. Proportion of Abnormal Glucose Values and Perinatal Outcome [13J]. Obstet Gynecol 2018. [DOI: 10.1097/01.aog.0000533477.23912.15] [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: 11/25/2022]
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21
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Chen Y, Kho AN, Liebovitz D, Ivory C, Osmundson S, Bian J, Malin BA. Learning bundled care opportunities from electronic medical records. J Biomed Inform 2018; 77:1-10. [PMID: 29174994 PMCID: PMC5771885 DOI: 10.1016/j.jbi.2017.11.014] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [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: 06/15/2017] [Revised: 10/30/2017] [Accepted: 11/21/2017] [Indexed: 01/29/2023]
Abstract
OBJECTIVE The traditional fee-for-service approach to healthcare can lead to the management of a patient's conditions in a siloed manner, inducing various negative consequences. It has been recognized that a bundled approach to healthcare - one that manages a collection of health conditions together - may enable greater efficacy and cost savings. However, it is not always evident which sets of conditions should be managed in a bundled manner. In this study, we investigate if a data-driven approach can automatically learn potential bundles. METHODS We designed a framework to infer health condition collections (HCCs) based on the similarity of their clinical workflows, according to electronic medical record (EMR) utilization. We evaluated the framework with data from over 16,500 inpatient stays from Northwestern Memorial Hospital in Chicago, Illinois. The plausibility of the inferred HCCs for bundled care was assessed through an online survey of a panel of five experts, whose responses were analyzed via an analysis of variance (ANOVA) at a 95% confidence level. We further assessed the face validity of the HCCs using evidence in the published literature. RESULTS The framework inferred four HCCs, indicative of (1) fetal abnormalities, (2) late pregnancies, (3) prostate problems, and (4) chronic diseases, with congestive heart failure featuring prominently. Each HCC was substantiated with evidence in the literature and was deemed plausible for bundled care by the experts at a statistically significant level. CONCLUSIONS The findings suggest that an automated EMR data-driven framework conducted can provide a basis for discovering bundled care opportunities. Still, translating such findings into actual care management will require further refinement, implementation, and evaluation.
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Affiliation(s)
- You Chen
- Dept. of Biomedical Informatics, School of Medicine, Vanderbilt University, Nashville, TN, USA.
| | - Abel N Kho
- Institute for Public Health and Medicine, Northwestern University, Chicago, IL, USA
| | | | - Catherine Ivory
- School of Nursing, Vanderbilt University, Nashville, TN, USA
| | - Sarah Osmundson
- Dept. of Obstetrics and Gynecology, School of Medicine, Vanderbilt University, Nashville, TN, USA
| | - Jiang Bian
- Dept. of Health Outcomes and Policy, University of Florida, Gainesville, FL, USA
| | - Bradley A Malin
- Dept. of Biomedical Informatics, School of Medicine, Vanderbilt University, Nashville, TN, USA; Dept. of Biostatistics, School of Medicine, Vanderbilt University, Nashville, TN, USA; Dept. of Electrical Engineering & Computer Science, School of Engineering, Vanderbilt University, Nashville, TN, USA
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22
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Chen L, Pocobelli G, Yu O, Shortreed S, Osmundson S, Fuller S, Wartko P, Fraser J, McCulloch D, Warwick S, Newton K, Dublin S. 987: Early Pregnancy Hemoglobin A1c values and pregnancy outcomes: a population-based analysis. Am J Obstet Gynecol 2018. [DOI: 10.1016/j.ajog.2017.11.524] [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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23
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Gao C, Kho AN, Ivory C, Osmundson S, Malin BA, Chen Y. Predicting Length of Stay for Obstetric Patients via Electronic Medical Records. Stud Health Technol Inform 2017; 245:1019-1023. [PMID: 29295255 PMCID: PMC5860660] [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] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
Abstract
Obstetric care refers to the care provided to patients during ante-, intra-, and postpartum periods. Predicting length of stay (LOS) for these patients during their hospitalizations can assist healthcare organizations in allocating hospital resources more effectively and efficiently, ultimately improving maternal care quality and reducing costs to patients. In this paper, we investigate the extent to which LOS can be forecast from a patient's medical history. We introduce a machine learning framework to incorporate a patient's prior conditions (e.g., diagnostic codes) as features in a predictive model for LOS. We evaluate the framework with three years of historical billing data from the electronic medical records of 9188 obstetric patients in a large academic medical center. The results indicate that our framework achieved an average accuracy of 49.3%, which is higher than the baseline accuracy 37.7% (that relies solely on a patient's age). The most predictive features were found to have statistically significant discriminative ability. These features included billing codes for normal delivery (indicative of shorter stay) and antepartum hypertension (indicative of longer stay).
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Affiliation(s)
- Cheng Gao
- Dept. of Biomedical Informatics, School of Medicine, Vanderbilt University, Nashville, TN, USA
| | - Abel N. Kho
- Institute for Public Health and Medicine, Northwestern University, Chicago, IL, USA
| | - Catherine Ivory
- School of Nursing, Vanderbilt University, Nashville, TN, USA
| | - Sarah Osmundson
- Dept. of Obstetrics and Gynecology, School of Medicine, Vanderbilt University, Nashville, TN, USA
| | - Bradley A. Malin
- Dept. of Biomedical Informatics, School of Medicine, Vanderbilt University, Nashville, TN, USA,Dept. of Electrical Engineering & Computer Science, School of Engineering, Vanderbilt University, Nashville, TN, USA,Dept. of Biostatistics, School of Medicine, Vanderbilt University, Nashville, TN, USA
| | - You Chen
- Dept. of Biomedical Informatics, School of Medicine, Vanderbilt University, Nashville, TN, USA
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24
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Brookfield K, Osmundson S, Caughey AB. 130: Should delivery timing for repeat cesarean be reconsidered based on pregnancy dating criteria? Am J Obstet Gynecol 2016. [DOI: 10.1016/j.ajog.2015.10.166] [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: 10/22/2022]
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25
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Pu J, Zhao B, Wang EJ, Nimbal V, Osmundson S, Kunz L, Popat RA, Chung S, Palaniappan LP. Racial/Ethnic Differences in Gestational Diabetes Prevalence and Contribution of Common Risk Factors. Paediatr Perinat Epidemiol 2015; 29:436-43. [PMID: 26201385 PMCID: PMC6519933 DOI: 10.1111/ppe.12209] [Citation(s) in RCA: 105] [Impact Index Per Article: 11.7] [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: 11/28/2022]
Abstract
BACKGROUND The White House, the American Heart Association, the Agency for Healthcare Research and Quality, and the National Heart, Lung and Blood Institute have all recently acknowledged the need to disaggregate Asian American subgroups to better understand this heterogeneous racial group. This study aims to assess racial/ethnic differences in relative contribution of risk factors of gestational diabetes mellitus (GDM) among Asian subgroups (Asian Indian, Chinese, Filipino, Japanese, Korean, and Vietnamese), Hispanics, non-Hispanic blacks, and non-Hispanic whites. METHODS Pregnant women in 2007-2012 were identified through California state birth certificate records and linked to the electronic health records in a large mixed-payer ambulatory care organisation in Northern California (n = 24 195). Relative risk and population attributable fraction (PAF) for specific racial/ethnic groups were calculated to assess the contributions of advanced maternal age, overweight/obesity (Centers for Disease Control and Prevention (CDC) standards and World Health Organization (WHO)/American Diabetes Association (ADA) body mass index cut-offs for Asians), family history of type 2 diabetes, and foreign-born status. RESULTS GDM was most prevalent among Asian Indians (19.3%). Relative risks were similar across all race/ethnic groups. Advanced maternal age had higher PAFs in non-Hispanic whites (22.5%) and Hispanics (22.7%). Meanwhile family history (Asian Indians 22.6%, Chinese 22.9%) and foreign-borne status (Chinese 40.2%, Filipinos 30.2%) had higher PAFs in Asian subgroups. Overweight/obesity was the most important GDM risk factor for non-Hispanic whites, Hispanics, Asian Indians, and Filipinos when the WHO/ADA cut-off points were applied. Advanced maternal age was the only risk factor studied that was modified by race/ethnicity, with non-Hispanic white and Hispanic women being more adversely affected than other racial/ethnic groups. CONCLUSIONS Overweight/obesity, advanced maternal age, family history of type 2 diabetes, and foreign-borne status are important risk factors for GDM. The relative contributions of these risk factors differ by race/ethnicity, mainly due to differences in population prevalence of these risk factors.
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Affiliation(s)
- Jia Pu
- Research Institute, Palo Alto Medical Foundation, Palo Alto, CA
| | - Beinan Zhao
- Research Institute, Palo Alto Medical Foundation, Palo Alto, CA
| | - Elsie J. Wang
- School of Medicine, Stanford University School of Medicine, Stanford, CA
| | - Vani Nimbal
- Research Institute, Palo Alto Medical Foundation, Palo Alto, CA
| | - Sarah Osmundson
- Lucile Packard Children’s Hospital, Stanford University School of Medicine, Stanford, CA
| | - Liza Kunz
- Research Institute, Palo Alto Medical Foundation, Palo Alto, CA
| | - Rita A. Popat
- Division of Epidemiology, Department of Health Research and Policy, School of Medicine, Stanford University, Stanford, CA
| | - Sukyung Chung
- Research Institute, Palo Alto Medical Foundation, Palo Alto, CA
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Osmundson S, Lafayette R, Bowen R, Roque V, Aziz N. 223: Correlation of urine protein-creatinine ratios and 24-hour urinary excretion in twin pregnancies. Am J Obstet Gynecol 2015. [DOI: 10.1016/j.ajog.2014.10.269] [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: 12/01/2022]
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Osmundson S, Zhao B, Kunz L, Wang E, Palaniappan L. 334: Prediction of gestational diabetes by first trimester hemoglobin A1c. Am J Obstet Gynecol 2014. [DOI: 10.1016/j.ajog.2013.10.367] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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Osmundson S, Garabedian M, Lyell D. 684: Risk of classical hysterotomy by gestational age in twin pregnancies. Am J Obstet Gynecol 2014. [DOI: 10.1016/j.ajog.2013.10.717] [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: 11/26/2022]
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Osmundson S, Roque V, Bowen R, Garabedian M, Lafayette R, Aziz N. 774: Urinary protein excretion in non-hypertensive twin pregnancies. Am J Obstet Gynecol 2014. [DOI: 10.1016/j.ajog.2013.10.807] [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: 11/16/2022]
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Girsen A, Osmundson S, Naqvi M, Lyell D. 789: BMI and operative times at cesarean delivery. Am J Obstet Gynecol 2013. [DOI: 10.1016/j.ajog.2012.10.127] [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: 10/27/2022]
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Girsen A, Osmundson S, Lyell D. 788: Total weight gain and incision to delivery interval during cesarean delivery. Am J Obstet Gynecol 2013. [DOI: 10.1016/j.ajog.2012.10.126] [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: 11/24/2022]
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Osmundson S, Ou-Yang R, Grobman W. 308: Labor outcomes among nulliparous women with an unfavorable cervix who are electively induced versus expectantly managed at term. Am J Obstet Gynecol 2009. [DOI: 10.1016/j.ajog.2009.10.323] [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: 10/20/2022]
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