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Stevens S, Jang JK, Kershaw K, Viramontes J, Dar TB, Nguyen AT, Henson R, Guarnerio J, Underhill D, Shiao SL. Fungal Depletion Bolsters Anti-Tumor Immune Response Elicited by Anti-PD1 Alone and in Combination with Radiation Therapy. Int J Radiat Oncol Biol Phys 2023; 117:S166. [PMID: 37784414 DOI: 10.1016/j.ijrobp.2023.06.265] [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] [Subscribe] [Scholar Register] [Indexed: 10/04/2023]
Abstract
PURPOSE/OBJECTIVE(S) Pembrolizumab in combination with chemotherapy has become the standard of care treatment for both metastatic and early-stage triple negative breast cancer (TNBC). Clinical trials are currently underway investigating the use of pembrolizumab with radiation in the neoadjuvant setting in early TNBC. Several groups have described a link between the microbiome and the efficacy of chemotherapy and anti-PD1 immune checkpoint inhibitors (ICIs) in preclinical models. Recent work from our lab has shown that targeting commensal fungi in the microbiome enhances the radiation induced antitumor immune response. Therefore, we hypothesized that fungal depletion might positively impact anti-PD1 therapy and combination treatment with anti-PD1 and radiation therapy (RT). MATERIALS/METHODS This study utilized an orthotopic syngeneic breast tumor model in which the syngeneic cell line E0771 was injected into the mammary fat pad of female C57BL/6 mice. Tumor-bearing mice were then treated with and without the antifungal fluconazole, anti-PD1, and radiation (16 Gy single fraction) using the X-RAD SmART platform with CT guidance. Tumor volumes were compared using 2-way ANOVA and survival curves analyzed using log rank. In a separate set of experiments, tumor-infiltrating immune cells were isolated and analyzed by high-dimensional multiplex flow cytometry. RESULTS We found that fungal depletion with fluconazole prior to treatment with anti-PD1 reduced the tumor volume and significantly improved survival in comparison to those treated with anti-PD1 alone (P = 0.0016). To identify what changes in the tumor immune microenvironment is driving this increased anti-tumor response, we performed flow cytometry on immune cells isolated from the tumors. We found that the use of fluconazole prior to anti-PD1 treatment reduced the proportion of CD11b+F4/80+ tumor-associated macrophages (TAMs) (P = 0.01) and increased tumor infiltrating cytotoxic T cell population (P = 0.04) when compared with the use of anti-PD1 alone. We also evaluated the effect of fungal depletion on combination therapy with RT and anti-PD1. Strikingly, we found that mice depleted of fungi with fluconazole prior to radiation and anti-PD1 therapy, have decreased tumor burden and significantly increased survival when compared to their fungally-intact counterparts (P = 0.043). CONCLUSION Our data indicates that the depletion of the gut fungal populations induces an increased antitumor response following anti-PD1 alone and in combination with radiation. This increased antitumor immune response is associated with an increase in the cytotoxic CD8+ T cell compartment with concomitant decrease in immunosuppressive tumor associated macrophages.
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Affiliation(s)
- S Stevens
- Department of Radiation Oncology, Cedars-Sinai Medical Center, Los Angeles, CA
| | - J K Jang
- Department of Radiation Oncology, Cedars-Sinai Medical Center, Los Angeles, CA
| | - K Kershaw
- Cedars-Sinai Medical Center, Los Angeles, CA
| | - J Viramontes
- Department of Radiation Oncology, Cedars-Sinai Medical Center, Los Angeles, CA
| | - T B Dar
- Cedars-Sinai Medical Center, Los Angeles, CA
| | - A T Nguyen
- Department of Radiation Oncology, Cedars-Sinai Medical Center, Los Angeles, CA
| | - R Henson
- Department of Radiation Oncology, Cedars-Sinai Medical Center, Los Angeles, CA
| | - J Guarnerio
- Department of Radiation Oncology, Cedars-Sinai Medical Center, Los Angeles, CA
| | - D Underhill
- Department of Biomedical Sciences, Cedars-Sinai Medical Center, Los Angeles, CA
| | - S L Shiao
- Department of Radiation Oncology, Cedars-Sinai Medical Center, Los Angeles, CA
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Nguyen AT, Dar TB, Viramontes J, Stevens S, Jang JK, Ko E, Lu DJ, Chung EM, Zhang SC, Atkins KM, Kamrava M, Sandler HM, Guarnerio J, Knott S, Zumsteg ZS, Underhill D, Shiao SL. Non-Redundant Mechanisms of Immune Resistance to Radiotherapy Converge on Innate Immunity. Int J Radiat Oncol Biol Phys 2023; 117:S71. [PMID: 37784560 DOI: 10.1016/j.ijrobp.2023.06.379] [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] [Subscribe] [Scholar Register] [Indexed: 10/04/2023]
Abstract
PURPOSE/OBJECTIVE(S) Despite evidence of preclinical synergy between radiotherapy (RT) and immune checkpoint blockade (ICB), randomized trials of RT/ICB have demonstrated limited benefit in solid tumors. We performed single-cell RNA sequencing (scRNA-seq) and CITE-seq (cellular indexing of transcriptomes and epitopes) to address the discordance between preclinical and clinical data. We hypothesized that multiple orthogonal inhibitory immune pathways restrain the local and systemic efficacy of RT beyond T-cell oriented immune checkpoints. MATERIALS/METHODS We used the EO771 syngeneic murine model of breast cancer to characterize the immune tumor microenvironment following RT with or without ICB. RT (16 Gy x 1) was delivered using the X-RAD SmART platform with CT image guidance. Neutralizing antibodies (anti-PD-1/Ly6G/Gr-1/CD47) were delivered by intraperitoneal injections. scRNA-seq analysis were performed by Seurat and BBrowser (BioTuring). RESULTS We found that adaptive ICB (anti-PD-1) reprogrammed the immune response to RT by promoting an M1-like interferon-primed state (ISG15, CXCL10) in tumor associated macrophages (TAMs) and by increasing the late recruitment of intratumoral neutrophils. Given that neutrophils may drive resistance to RT in other models, we evaluated the effect of intratumoral neutrophil depletion using anti-Ly6G or anti-Gr-1 on the antitumor efficacy of RT/ICB. Both neutrophil depletion strategies led to enhanced tumor control and improved survival in advanced EO771 tumors compared to RT/ICB alone (P<0.001). In parallel to this approach, we found that TAMs upregulated several innate immune checkpoints including SIRPα in response to RT. Disruption of the SIRPα-CD47 interaction by anti-CD47 antibodies similarly enhanced the antitumor efficacy of RT/ICB by improving tumor control and survival (P<0.001). Using scRNA-seq and unbiased clustering, we found that anti-CD47 eliminated an entire cluster of chronically inflamed TAMs, characterized by pro-inflammatory markers (IL1A, NOS2) and chemokines (CCL3, CXCL1/2/3). Anti-CD47 also reduced intratumoral neutrophils by eliminating a cluster of pathologically activated neutrophils, termed myeloid-derived suppressor cells (PMN-MDSCs) that expressed several markers of ferroptosis (TFRC, PTGS2, SLC3A2). Consistent with the potent immunosuppressive capacity of PMN-MDSCs, we found that anti-CD47 increased tumor-infiltrating lymphocytes including central memory TCF7+ T cells and CD19+ B cells. Lastly, by inference and analysis of cell-cell communication (CellChat), we found that anti-CD47 strengthened the interactions between TAMs and CD8+ T cells compared to RT/ICB alone. CONCLUSION Our data collectively indicate that resistance to RT/ICB in the EO771 model Is driven by innate immune cells including neutrophils and chronically inflamed TAMs. Targeted disruption of the CD47-SIRPα axis is a promising approach to overcoming immune resistance by reprogramming TAMs and eliminating PMN-MDSCs.
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Affiliation(s)
- A T Nguyen
- Department of Radiation Oncology, Cedars-Sinai Medical Center, Los Angeles, CA
| | - T B Dar
- Cedars-Sinai Medical Center, Los Angeles, CA
| | - J Viramontes
- Department of Radiation Oncology, Cedars-Sinai Medical Center, Los Angeles, CA
| | - S Stevens
- Department of Radiation Oncology, Cedars-Sinai Medical Center, Los Angeles, CA
| | - J K Jang
- Department of Radiation Oncology, Cedars-Sinai Medical Center, Los Angeles, CA
| | - E Ko
- Cedars-Sinai Medical Center, Los Angeles, CA
| | - D J Lu
- Cedars-Sinai Medical Center, Los Angeles, CA
| | - E M Chung
- Cedars-Sinai Medical Center, Los Angeles, CA
| | - S C Zhang
- Cedars-Sinai Medical Center, Los Angeles, CA
| | - K M Atkins
- Cedars-Sinai Medical Center, Los Angeles, CA
| | - M Kamrava
- Department of Radiation Oncology, Cedars-Sinai Medical Center, Los Angeles, CA
| | - H M Sandler
- Cedars-Sinai Medical Center, Los Angeles, CA
| | - J Guarnerio
- Department of Radiation Oncology, Cedars-Sinai Medical Center, Los Angeles, CA
| | - S Knott
- Cedars-Sinai Medical Center, Los Angeles, CA
| | - Z S Zumsteg
- Cedars-Sinai Medical Center, Los Angeles, CA
| | - D Underhill
- Cedars-Sinai Medical Center, Los Angeles, CA
| | - S L Shiao
- Cedars-Sinai Medical Center, Los Angeles, CA
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Dar TB, Nguyen AT, Stevens S, Viramontes J, Henson R, Jang JK, Guarnerio J, Underhill D, Shiao SL. Reshaping Macrophage Polarization Potential Enhances Antitumor Immune Response to Radiation Therapy. Int J Radiat Oncol Biol Phys 2023; 117:e225-e226. [PMID: 37784913 DOI: 10.1016/j.ijrobp.2023.06.1133] [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] [Subscribe] [Scholar Register] [Indexed: 10/04/2023]
Abstract
PURPOSE/OBJECTIVE(S) Although radiation therapy (RT) remains a cornerstone in the treatment of breast cancer, many trials combining RT with immune checkpoint blockade (ICB) have failed to demonstrate benefit in solid tumors including breast cancer. Maximal efficacy of RT relies on the generation of antitumor immunity following treatment which largely consists of cytotoxic T cells and macrophages. Broad depletion of macrophages modestly enhances tumor responses to RT suggesting that they can shape RT-induced antitumor immunity. Although IL4 signaling through GATA-3 is known to polarize T cells into the protumor Th2 phenotype, such central drivers of macrophage polarization are not well established. Given that macrophages abundantly express IL4 receptor, we hypothesized that GATA-3 may direct the transition of macrophages to M2/alternative phase and that genetic ablation of GATA-3 in macrophages can enhance antitumor immunity by arresting macrophage transition to an M2-like pro-tumor state. MATERIALS/METHODS We generated a macrophage specific GATA-3 KO mouse model (mG3KO) driven by the LysM-Cre promoter. Using a syngeneic orthotopic murine model of breast cancer (EO771), we evaluated the differential effect of RT (16Gy x 1) in WT and mG3KO mice. Multiparametric flow cytometry was performed to investigate the immune changes within the tumor microenvironment on day 3, day 5 and day 10 after RT. T cell depletion was performed using antibodies to CD4 and CD8 by intraperitoneal injections to understand the role of adaptive immunity in the response to RT in WT and mG3KO mice. RESULTS We found that mG3KO mice bearing advanced EO771 tumors demonstrated significantly improved tumor regression compared to WT mice (p<0.001), which translated to increased overall survival. In vitro characterization of bone-marrow derived macrophages from mG3KO and WT mice suggest that macrophages with ablated GATA-3 expressed increased levels of iNOS and decreased levels of Arginase (Arg-1), consistent with an M1-like phenotype. Immune profiling of the tumors also revealed that mGATA-3 KO animals have significant enrichment of CD8+ T cells in the tumor milieu post RT and these CD8+ T cells express higher amounts of interferon gamma (p<0.001) and Granzyme B (p<0.0015) than their WT counterparts. Using neutralizing antibodies to deplete CD8+ T cells, we show that anti-tumor effects in the mG3KO mice were abolished, suggesting that mG3KO macrophages impact survival, at least, in part by enhancing cytotoxic CD8+T cells. Studies are currently ongoing to reveal the detailed mechanism of GATA-3 ablation in improving the efficacy of RT. CONCLUSION Our data indicates that GATA-3 is a central regulator of macrophage polarization in response to RT. Further, directed ablation of GATA-3 appears to drive macrophages towards an M1-like phenotype, which enhances T cell recruitment to irradiated tumors. These data suggest that the antitumor efficacy of RT can be prolonged by targeting GATA-3-dependent signaling within myeloid cells.
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Affiliation(s)
- T B Dar
- Department of Radiation Oncology, Cedars-Sinai Medical Center, Los Angeles, CA
| | - A T Nguyen
- Department of Radiation Oncology, Cedars-Sinai Medical Center, Los Angeles, CA
| | - S Stevens
- Department of Radiation Oncology, Cedars-Sinai Medical Center, Los Angeles, CA
| | - J Viramontes
- Department of Radiation Oncology, Cedars-Sinai Medical Center, Los Angeles, CA
| | - R Henson
- Department of Radiation Oncology, Cedars-Sinai Medical Center, Los Angeles, CA
| | - J K Jang
- Department of Radiation Oncology, Cedars-Sinai Medical Center, Los Angeles, CA
| | - J Guarnerio
- Department of Radiation Oncology, Cedars-Sinai Medical Center, Los Angeles, CA
| | - D Underhill
- Department of Biomedical Sciences, Cedars-Sinai Medical Center, Los Angeles, CA
| | - S L Shiao
- Department of Radiation Oncology, Cedars-Sinai Medical Center, Los Angeles, CA
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Mirza M, Chase D, Slomovitz B, Christensen R, Novák Z, Black D, Gilbert L, Sharma S, Valabrega G, Landrum L, Hanker L, Stuckey A, Boere I, Gold M, Gill S, Monk B, He Z, Stevens S, Coleman R, Powell M. VP2-2023: Dostarlimab+chemotherapy for the treatment of primary advanced or recurrent (A/R) endometrial cancer (EC): A placebo (PBO)-controlled randomised phase III trial (ENGOT-EN6-NSGO/GOG-3031/RUBY). Ann Oncol 2023. [DOI: 10.1016/j.annonc.2023.02.008] [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: 03/29/2023] Open
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Nguyen A, Dar T, Viramontes J, Mevises N, Biteghe FN, Stevens S, Kershaw K, De Simone M, Ko E, Lu D, Chung E, Zhang S, Atkins K, Kamrava M, Sandler H, Guarnerio J, Knott S, Zumsteg Z, Shiao S. Phagocytosis Checkpoint Blockade Overcomes Immunosuppression Triggered by Radiation Therapy and PD1 Inhibition. Int J Radiat Oncol Biol Phys 2022. [DOI: 10.1016/j.ijrobp.2022.07.406] [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: 11/27/2022]
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Beels M, Stevens S, Saldien V. Perioperative fluid management in children: an updated review. Acta Anaest Belg 2022. [DOI: 10.56126/73.3.03] [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] [Subscribe] [Scholar Register] [Indexed: 12/05/2022]
Abstract
Background: Perioperative fluid management in children has been a major topic for debate.
Objectives: Our aim is to review the current evidence on perioperative fluid management in children including: type of fluid, administration rates, preoperative fluid intake and monitoring techniques.
Design: Narrative review.
Method: Following the PRISMA-S guidelines we performed a search (2010-March 2022) in databases Medline (through PubMed) and Cochrane Library. 4297 citations were found and screened by two independent researchers. After screening, 64 articles were withheld for our review.
Results: The perioperative administration of isotonic fluids is safer than hypotonic solutions, concerning the development of hyponatremia. A balanced isotonic solution with 1-2,5% glucose should be used as perioperative maintenance IV fluid in children (1 month to 18 years). Colloids can be used in children when inadequate effect in volume correction is achieved with crystalloids. The preferred synthetic colloid for children is a third generation HES in a balanced solution. To date, most clinicians use the “4-2-1 rule” for calculating fluid rate. This may not be the optimal fluid rate, as little research has been done. Preoperative fasting for clear fluids should be limited to 1 hour, children should even be encouraged to drink up until 1 hour before induction. Respiratory variation of aortic blood flow peak velocity (ΔVpeak) with echocardiography is currently the most reliable technique for evaluating fluid responsiveness in children.
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Stevens S, Agten A, Snijders T, Plazier M, Bamps S, Assieker T, Betz M, Timmermans A, van Loon L, Vandenabeele F. Skeletal Muscle Fibre Characteristics of the Lumbar Multifidus Muscle in Patients Undergoing Microdiscectomy for Unilateral Lumbar Disc Herniation. Muscles Ligaments Tendons J 2022. [DOI: 10.32098/mltj.03.2022.19] [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: 11/05/2022]
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Nataraja RM, Yin Mar Oo, Ljuhar D, Pacilli M, Nyo Nyo Win, Stevens S, Aye Aye, Nestel D. Long-Term Impact of a Low-Cost Paediatric Intussusception Air Enema Reduction Simulation-Based Education Programme in a Low-Middle Income Country. World J Surg 2022; 46:310-321. [PMID: 34671841 DOI: 10.1007/s00268-021-06345-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 10/02/2021] [Indexed: 10/20/2022]
Abstract
INTRODUCTION Intussusception is one of the commonest causes of bowel obstruction in infants. Most infants in Low- and Middle-Income Countries (LMICs) undergo an invasive operative intervention. Supported by simulation-based education (SBE), the Air Enema (AE) non-operative technique was introduced in 2016 in Myanmar. This study assesses the long-term outcomes. METHODS Mixed methods study design over 4 years including clinical outcomes and surgeon's attitudes towards the AE technique and SBE. Prospectively collected clinical outcomes and semi-structured interview with reflexive thematic analysis (RTA). Primary outcome measure was a long-term shift to non-operative intervention. SECONDARY OUTCOMES Length of Stay (LoS), recurrence rates, intestinal resection rates, compared to the operative group. The data was analysed according to intention to treat. Quantitative data analysis with Mann-Whitney U test, Fisher's exact test, Student's T-Test or Wilcoxon Signed-Rank Test utilised. A p-value of <.05 was considered significant. RESULTS A total of 311 infants with intussusception were included. A sustained shift to AE was revealed with high success rates (86.1-91.2%). AE had a reduced LoS (4 vs. 7 days p ≤ 0.0001), Duration of Symptoms (DoS) was lower with AE (1.9/7 vs. 2.5/7, p = 0.002). Low recurrence rates (0-5.8%) and intestinal resection rates stabilised at 30.5-31.8% vs.15.3% pre-intervention. Four RTA themes were identified: Expanding conceptions of healthcare professional education and training; realising far reaching advantages; promoting critical analysis and reflective practice of clinicians; and adapting clinical practice to local context. RTA revealed an overall positive paradigm shift in attitudes and application of SBE. CONCLUSIONS A sustained change in clinical outcomes and appreciation of the value of SBE was demonstrated following the intervention.
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Affiliation(s)
- R M Nataraja
- Department of Paediatric Surgery, Urology and Surgical Simulation, Monash Children's Hospital, 246 Clayton Road, Clayton, Melbourne, VIC, 3168, Australia.
- Department of Paediatrics, School of Clinical Sciences, Faculty of Medicine, Nursing and Health Sciences, Monash University, Melbourne, VIC, Australia.
| | - Yin Mar Oo
- Department of Paediatric Surgery, Yangon Children's Hospital, Yangon, Myanmar
| | - D Ljuhar
- Department of Paediatric Surgery, Urology and Surgical Simulation, Monash Children's Hospital, 246 Clayton Road, Clayton, Melbourne, VIC, 3168, Australia
- Department of Paediatrics, School of Clinical Sciences, Faculty of Medicine, Nursing and Health Sciences, Monash University, Melbourne, VIC, Australia
| | - M Pacilli
- Department of Paediatric Surgery, Urology and Surgical Simulation, Monash Children's Hospital, 246 Clayton Road, Clayton, Melbourne, VIC, 3168, Australia
- Department of Paediatrics, School of Clinical Sciences, Faculty of Medicine, Nursing and Health Sciences, Monash University, Melbourne, VIC, Australia
| | - Nyo Nyo Win
- Department of Paediatric Surgery, Yangon Children's Hospital, Yangon, Myanmar
| | - S Stevens
- Austin Clinical School, University of Melbourne, Melbourne, VIC, Australia
- Austin Precinct, Department of Surgery, University of Melbourne, Melbourne, VIC, Australia
| | - Aye Aye
- Department of Paediatric Surgery, Yangon Children's Hospital, Yangon, Myanmar
| | - D Nestel
- Austin Precinct, Department of Surgery, University of Melbourne, Melbourne, VIC, Australia
- School of Clinical Sciences, Faculty of Medicine, Nursing and Health Sciences, Monash University, Melbourne, VIC, Australia
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Godsave C, Chakravorty M, Rutter M, Lanyon P, Aston J, Bythell M, Stevens S, Pearce F. POS1412 IDENTIFYING HIGH-COST DRUGS FOR RARE RHEUMATIC DISEASES IN ROUTINELY COLLECTED NHS DATA. RESULTS FROM A PILOT STUDY OF RITUXIMAB USE IN VASCULITIS USING DATA FROM THE NATIONAL DISEASE REGISTRATION SERVICE AND THE REGISTRATION OF COMPLEX RARE DISEASES-EXEMPLARS IN RHEUMATOLOGY (RECORDER) PROJECT. Ann Rheum Dis 2021. [DOI: 10.1136/annrheumdis-2021-eular.1591] [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] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
Abstract
Background:Understanding real-world usage of high-cost drugs is crucial to support planning, adoption of innovation and reduce unwarranted variation in treatment. Hospital Episode Statistics (HES) contain diagnoses (coded by ICD-10) and procedures/treatments (coded by OPCS) for all daycase or inpatient care in England. However, OPCS codes are not specific for individual drugs, for example X921 (cytokine inhibitors band 1) includes rituximab (RTX) and 15 other drugs.Objectives:We aimed to validate the accurate identification of patients treated with RTX for ANCA-associated vasculitis (AAV) using HES data.Methods:We used data from the National Congenital Anomaly and Rare Disease Registration Service (NCARDRS) at Public Health England and their legal permissions (CAG 10-02(d)/2015). We extracted records from HES of all patients treated at two hospitals during financial year 2018/19 who ever had a coded diagnosis of granulomatosis with polyangiitis (GPA, M313), eosinophilic granulomatosis with polyangiitis (EGPA, M301), microscopic polyangiitis (MPA, M317), polyarteritis nodosa (PAN, M300) or arteritis unspecified (I776). Where people had multiple diagnoses of vasculitis, the most specific was considered their diagnosis. Enabled by data sharing agreements, we reviewed hospital records of those patients to validate diagnoses and whether X921 reliably identified RTX. We report the positive predictive value and sensitivity of the coding for X921 and GPA/EGPA/MPA for identifying people with AAV who are treated with RTX.Results:At Trust 1 records ever coded with GPA/EGPA/MPA identified 74 people, 69 of whom had AAV confirmed in their medical notes. Among these 74 patients there were 59 episodes coded with X921 procedure codes, of which 56 correctly identified a RTX infusion given for AAV. A total of 64 RTX infusions were given to people with AAV – 3 missed infusions were X921 procedures in patients who had coded diagnoses of PAN or I776 but never GPA/EGPA/MPA and 5 infusions were not coded as X921.The same analysis at Trust 2 identified 46 people, 44 of whom had AAV confirmed in their medical notes. Among patients identified with AAV there were 17 episodes coded as X921, of which 15 correctly identified a RTX infusion. A total of 23 infusions were given to people with AAV: 4 infusions were X921 procedures in patients who had coded diagnoses of PAN or I776 but never GPA/EGPA/MPA, and 4 infusions were not coded as X921.Table 1. Summary of Positive Predictive Values (PPV) applying our algorithm to identify AAV diagnoses and RTX useTrust 1Trust 2CombinedDiagnosis of AAV and coded as AAV6944113AAV coded7446120Diagnosis of AAV under any code7355128PPV AAV ascertainment (95% CI)93.2% (84.9-97.8)95.7% (85.2-99.5)94.2% (88.4-97.6)Sensitivity of AAV ascertainment (95% CI)94.5% (86.8-98.5)80.0% (67.0-89.6)88.3% (81.4-93.3)RTX given in people coded as AAV561571RTX coded in people coded as AAV591776RTX given for AAV under any diagnostic or procedure code642387PPV RTX ascertainment (95% CI)94.9% (85.9-98.9)88.2% (63.6-98.5)93.4% (85.3-97.8)Sensitivity of RTX ascertainment (95% CI)87.5% (76.8-94.4)65.2% (42.7-83.6)81.6% (71.9-89.1)Conclusion:HES data identified patients treated with RTX for AAV with a PPV of 93.4% (85.3-97.8) and sensitivity of 81.6% (71.9-89.1). This demonstrates the utility of national data to identify people receiving RTX for AAV. The RECORDER project, within the National Disease Registration Service plans to conduct real-world studies of the high-cost drug RTX, given for AAV, across the whole of England, and assess whether geography, demographics or socioeconomic factors influence frequency of prescription of this, and potentially other, high-cost drugs in line with the NHS long term plan.References:[1]Ward-Platt M, Stevens S, Miller N. I18 The national congenital anomaly and rare disease registration service (NCARDRS): The first yearAcknowledgements:I have no acknowledgements to declare.Disclosure of Interests:Cattleya Godsave: None declared, Mithun Chakravorty: None declared, Megan Rutter: None declared, Peter Lanyon Grant/research support from: P.C.L. is a recipients of a grant from Vifor Pharma. Vifor Pharma had no influence on the design, conduct or interpretation of this study., Jeanette Aston: None declared, Mary Bythell: None declared, Sarah Stevens: None declared, Fiona Pearce Grant/research support from: I have received a research grant from Vifor Pharma
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Pascoe J, Foster P, Quddus M, Kosti A, Guest F, Stevens S, Bamford R, Coulston J. 851 SMILE: Sustaining Medical Education in A Lockdown Environment. Student Perceptions of a Free Online Access Medical Education Platform as An Adjunct to The Traditional Undergraduate Curriculum During Lockdown. Br J Surg 2021. [PMCID: PMC8135685 DOI: 10.1093/bjs/znab135.009] [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] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/02/2022]
Abstract
Introduction The coronavirus outbreak has had significant impact on medical students worldwide. SMILE is a free online access medical education (FOAMEd) platform. SMILE delivered 200 lectures during lockdown with up to 1400 students per session from UK medical schools and 33 abroad. Here we discuss student perceptions to SMILE during lockdown Method A survey was used to collect information from students who had utilised the platform during lockdown. This examined access to learning, impact on mental health during lockdown and the differences between FOAMed and more traditional based campus lecture-based learning. Results 1306 students responded to the survey. The majority of students were concerned regarding their training during lockdown, with 71% reporting an impact on their stress levels and 44% reporting a negative impact on mental health. On average students attended 4.3hours of teaching put on by their university per week, vs 7.9hours by SMILE. Positives included anonymity, making 80% more likely to both ask and answer questions, the informal approach, ease of access and enthusiastic teachers. Negatives included time differences and technical issues. Conclusions Lockdown provided challenges in medical education, which platforms like SMILE addressed. Our experiences highlighted many positive outcomes of online medical education that may be applicable to other educators.
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Affiliation(s)
- J Pascoe
- Royal Devon & Exeter Hospital, Exeter, United Kingdom
- University of Exeter, Exeter, United Kingdom
| | - P Foster
- Somerset NHS Foundation Trust, Taunton, United Kingdom
- University of Exeter, Exeter, United Kingdom
| | - M Quddus
- University of Exeter, Exeter, United Kingdom
| | - A Kosti
- Somerset NHS Foundation Trust, Taunton, United Kingdom
| | - F Guest
- Somerset NHS Foundation Trust, Taunton, United Kingdom
| | - S Stevens
- Addenbrookes Hospital, Cambridge, United Kingdom
| | - R Bamford
- Somerset NHS Foundation Trust, Taunton, United Kingdom
| | - J Coulston
- Somerset NHS Foundation Trust, Taunton, United Kingdom
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Doidge JC, Morris JK, Harron KL, Stevens S, Gilbert R. Prevalence of Down's Syndrome in England, 1998-2013: Comparison of linked surveillance data and electronic health records. Int J Popul Data Sci 2020; 5:1157. [PMID: 32864476 PMCID: PMC7115985 DOI: 10.23889/ijpds.v5i1.1157] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [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] [Indexed: 02/06/2023] Open
Abstract
INTRODUCTION Disease registers and electronic health records are valuable resources for disease surveillance and research but can be limited by variation in data quality over time. Quality may be limited in terms of the accuracy of clinical information, of the internal linkage that supports person-based analysis of most administrative datasets, or by errors in linkage between multiple datasets. OBJECTIVES By linking the National Down Syndrome Cytogenetic Register (NDSCR) to Hospital Episode Statistics for England (HES), we aimed to assess the quality of each and establish a consistent approach for analysis of trends in prevalence of Down's syndrome among live births in England. METHODS Probabilistic record linkage of NDSCR to HES for the period 1998-2013 was supported by linkage of babies to mothers within HES. Comparison of prevalence estimates in England were made using NDSCR only, HES data only, and linked data. Capture-recapture analysis and quantitative bias analysis were used to account for potential errors, including false positive diagnostic codes, unrecorded diagnoses, and linkage error. RESULTS Analyses of single-source data indicated increasing live birth prevalence of Down's Syndrome, particularly in the analysis of HES. Linked data indicated a contrastingly stable prevalence of 12.3 (plausible range: 11.6-12.7) cases per 10 000 live births. CONCLUSION Case ascertainment in NDSCR improved slightly over time, creating a picture of slowly increasing prevalence. The emerging epidemic suggested by HES primarily reflects improving linkage within HES (assignment of unique patient identifiers to hospital episodes). Administrative data are valuable but trends should be interpreted with caution, and with assessment of data quality over time. Data linkage with quantitative bias analysis can provide more robust estimation and, in this case, stronger evidence that prevalence is not increasing. Routine linkage of administrative and register data can enhance the value of each.
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Affiliation(s)
- JC Doidge
- UCL Great Ormond Street Institute of Child Health, University College London, London, WC1N 1EH, UK
- Intensive Care National Audit and Research Centre, London, WC1V 6AZ, UK
| | - JK Morris
- Population Health Research Institute, St George's University of London, London, SW17 0RE, UK
| | - KL Harron
- UCL Great Ormond Street Institute of Child Health, University College London, London, WC1N 1EH, UK
| | - S Stevens
- Public Health England, London, SE1 6LH, UK
| | - R Gilbert
- UCL Great Ormond Street Institute of Child Health, University College London, London, WC1N 1EH, UK
- Health Data Research UK, University College London, London, NW1 2DA, UK
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McLean K, Glasbey J, Borakati A, Brooks T, Chang H, Choi S, Goodson R, Nielsen M, Pronin S, Salloum N, Sewart E, Vanniasegaram D, Drake T, Gillies M, Harrison E, Chapman S, Khatri C, Kong C, Claireaux H, Bath M, Mohan M, McNamee L, Kelly M, Mitchell H, Fitzgerald J, Bhangu A, Nepogodiev D, Antoniou I, Dean R, Davies N, Trecarten S, Henderson I, Holmes C, Wylie J, Shuttleworth R, Jindal A, Hughes F, Gouda P, Fleck R, Hanrahan M, Karunakaran P, Chen J, Sykes M, Sethi R, Suresh S, Patel P, Patel M, Varma R, Mushtaq J, Gundogan B, Bolton W, Khan T, Burke J, Morley R, Favero N, Adams R, Thirumal V, Kennedy E, Ong K, Tan Y, Gabriel J, Bakhsh A, Low J, Yener A, Paraoan V, Preece R, Tilston T, Cumber E, Dean S, Ross T, McCance E, Amin H, Satterthwaite L, Clement K, Gratton R, Mills E, Chiu S, Hung G, Rafiq N, Hayes J, Robertson K, Dynes K, Huang H, Assadullah S, Duncumb J, Moon R, Poo S, Mehta J, Joshi K, Callan R, Norris J, Chilvers N, Keevil H, Jull P, Mallick S, Elf D, Carr L, Player C, Barton E, Martin A, Ratu S, Roberts E, Phan P, Dyal A, Rogers J, Henson A, Reid N, Burke D, Culleton G, Lynne S, Mansoor S, Brennan C, Blessed R, Holloway C, Hill A, Goldsmith T, Mackin S, Kim S, Woin E, Brent G, Coffin J, Ziff O, Momoh Z, Debenham R, Ahmed M, Yong C, Wan J, Copley H, Raut P, Chaudhry F, Nixon G, Dorman C, Tan R, Kanabar S, Canning N, Dolaghan M, Bell N, McMenamin M, Chhabra A, Duke K, Turner L, Patel T, Chew L, Mirza M, Lunawat S, Oremule B, Ward N, Khan M, Tan E, Maclennan D, McGregor R, Chisholm E, Griffin E, Bell L, Hughes B, Davies J, Haq H, Ahmed H, Ungcharoen N, Whacha C, Thethi R, Markham R, Lee A, Batt E, Bullock N, Francescon C, Davies J, Shafiq N, Zhao J, Vivekanantham S, Barai I, Allen J, Marshall D, McIntyre C, Wilson H, Ashton A, Lek C, Behar N, Davis-Hall M, Seneviratne N, Esteve L, Sirakaya M, Ali S, Pope S, Ahn J, Craig-McQuaide A, Gatfield W, Leong S, Demetri A, Kerr A, Rees C, Loveday J, Liu S, Wijesekera M, Maru D, Attalla M, Smith N, Brown D, Sritharan P, Shah A, Charavanamuttu V, Heppenstall-Harris G, Ng K, Raghvani T, Rajan N, Hulley K, Moody N, Williams M, Cotton A, Sharifpour M, Lwin K, Bright M, Chitnis A, Abdelhadi M, Semana A, Morgan F, Reid R, Dickson J, Anderson L, McMullan R, Ahern N, Asmadi A, Anderson L, Boon Xuan JL, Crozier L, McAleer S, Lees D, Adebayo A, Das M, Amphlett A, Al-Robeye A, Valli A, Khangura J, Winarski A, Ali A, Woodward H, Gouldthrope C, Turner M, Sasapu K, Tonkins M, Wild J, Robinson M, Hardie J, Heminway R, Narramore R, Ramjeeawon N, Hibberd A, Winslow F, Ho W, Chong B, Lim K, Ho S, Crewdson J, Singagireson S, Kalra N, Koumpa F, Jhala H, Soon W, Karia M, Rasiah M, Xylas D, Gilbert H, Sundar-Singh M, Wills J, Akhtar S, Patel S, Hu L, Brathwaite-Shirley C, Nayee H, Amin O, Rangan T, Turner E, McCrann C, Shepherd R, Patel N, Prest-Smith J, Auyoung E, Murtaza A, Coates A, Prys-Jones O, King M, Gaffney S, Dewdney C, Nehikhare I, Lavery J, Bassett J, Davies K, Ahmad K, Collins A, Acres M, Egerton C, Cheng K, Chen X, Chan N, Sheldon A, Khan S, Empey J, Ingram E, Malik A, Johnstone M, Goodier R, Shah J, Giles J, Sanders J, McLure S, Pal S, Rangedara A, Baker A, Asbjoernsen C, Girling C, Gray L, Gauntlett L, Joyner C, Qureshi S, Mogan Y, Ng J, Kumar A, Park J, Tan D, Choo K, Raman K, Buakuma P, Xiao C, Govinden S, Thompson O, Charalambos M, Brown E, Karsan R, Dogra T, Bullman L, Dawson P, Frank A, Abid H, Tung L, Qureshi U, Tahmina A, Matthews B, Harris R, O'Connor A, Mazan K, Iqbal S, Stanger S, Thompson J, Sullivan J, Uppal E, MacAskill A, Bamgbose F, Neophytou C, Carroll A, Rookes C, Datta U, Dhutia A, Rashid S, Ahmed N, Lo T, Bhanderi S, Blore C, Ahmed S, Shaheen H, Abburu S, Majid S, Abbas Z, Talukdar S, Burney L, Patel J, Al-Obaedi O, Roberts A, Mahboob S, Singh B, Sheth S, Karia P, Prabhudesai A, Kow K, Koysombat K, Wang S, Morrison P, Maheswaran Y, Keane P, Copley P, Brewster O, Xu G, Harries P, Wall C, Al-Mousawi A, Bonsu S, Cunha P, Ward T, Paul J, Nadanakumaran K, Tayeh S, Holyoak H, Remedios J, Theodoropoulou K, Luhishi A, Jacob L, Long F, Atayi A, Sarwar S, Parker O, Harvey J, Ross H, Rampal R, Thomas G, Vanmali P, McGowan C, Stein J, Robertson V, Carthew L, Teng V, Fong J, Street A, Thakker C, O'Reilly D, Bravo M, Pizzolato A, Khokhar H, Ryan M, Cheskes L, Carr R, Salih A, Bassiony S, Yuen R, Chrastek D, Rosen O'Sullivan H, Amajuoyi A, Wang A, Sitta O, Wye J, Qamar M, Major C, Kaushal A, Morgan C, Petrarca M, Allot R, Verma K, Dutt S, Chilima C, Peroos S, Kosasih S, Chin H, Ashken L, Pearse R, O'Loughlin R, Menon A, Singh K, Norton J, Sagar R, Jathanna N, Rothwell L, Watson N, Harding F, Dube P, Khalid H, Punjabi N, Sagmeister M, Gill P, Shahid S, Hudson-Phillips S, George D, Ashwood J, Lewis T, Dhar M, Sangal P, Rhema I, Kotecha D, Afzal Z, Syeed J, Prakash E, Jalota P, Herron J, Kimani L, Delport A, Shukla A, Agarwal V, Parthiban S, Thakur H, Cymes W, Rinkoff S, Turnbull J, Hayat M, Darr S, Khan U, Lim J, Higgins A, Lakshmipathy G, Forte B, Canning E, Jaitley A, Lamont J, Toner E, Ghaffar A, McDowell M, Salmon D, O'Carroll O, Khan A, Kelly M, Clesham K, Palmer C, Lyons R, Bell A, Chin R, Waldron R, Trimble A, Cox S, Ashfaq U, Campbell J, Holliday R, McCabe G, Morris F, Priestland R, Vernon O, Ledsam A, Vaughan R, Lim D, Bakewell Z, Hughes R, Koshy R, Jackson H, Narayan P, Cardwell A, Jubainville C, Arif T, Elliott L, Gupta V, Bhaskaran G, Odeleye A, Ahmed F, Shah R, Pickard J, Suleman Y, North A, McClymont L, Hussain N, Ibrahim I, Ng G, Wong V, Lim A, Harris L, Tharmachandirar T, Mittapalli D, Patel V, Lakhani M, Bazeer H, Narwani V, Sandhu K, Wingfield L, Gentry S, Adjei H, Bhatti M, Braganza L, Barnes J, Mistry S, Chillarge G, Stokes S, Cleere J, Wadanamby S, Bucko A, Meek J, Boxall N, Heywood E, Wiltshire J, Toh C, Ward A, Shurovi B, Horth D, Patel B, Ali B, Spencer T, Axelson T, Kretzmer L, Chhina C, Anandarajah C, Fautz T, Horst C, Thevathasan A, Ng J, Hirst F, Brewer C, Logan A, Lockey J, Forrest P, Keelty N, Wood A, Springford L, Avery P, Schulz T, Bemand T, Howells L, Collier H, Khajuria A, Tharakan R, Parsons S, Buchan A, McGalliard R, Mason J, Cundy O, Li N, Redgrave N, Watson R, Pezas T, Dennis Y, Segall E, Hameed M, Lynch A, Chamberlain M, Peck F, Neo Y, Russell G, Elseedawy M, Lee S, Foster N, Soo Y, Puan L, Dennis R, Goradia H, Qureshi A, Osman S, Reeves T, Dinsmore L, Marsden M, Lu Q, Pitts-Tucker T, Dunn C, Walford R, Heathcote E, Martin R, Pericleous A, Brzyska K, Reid K, Williams M, Wetherall N, McAleer E, Thomas D, Kiff R, Milne S, Holmes M, Bartlett J, Lucas de Carvalho J, Bloomfield T, Tongo F, Bremner R, Yong N, Atraszkiewicz B, Mehdi A, Tahir M, Sherliker G, Tear A, Pandey A, Broyd A, Omer H, Raphael M, Chaudhry W, Shahidi S, Jawad A, Gill C, Fisher IH, Adeleja I, Clark I, Aidoo-Micah G, Stather P, Salam G, Glover T, Deas G, Sim N, Obute R, Wynell-Mayow W, Sait M, Mitha N, de Bernier G, Siddiqui M, Shaunak R, Wali A, Cuthbert G, Bhudia R, Webb E, Shah S, Ansari N, Perera M, Kelly N, McAllister R, Stanley G, Keane C, Shatkar V, Maxwell-Armstrong C, Henderson L, Maple N, Manson R, Adams R, Semple E, Mills M, Daoub A, Marsh A, Ramnarine A, Hartley J, Malaj M, Jewell P, Whatling E, Hitchen N, Chen M, Goh B, Fern J, Rogers S, Derbyshire L, Robertson D, Abuhussein N, Deekonda P, Abid A, Harrison P, Aildasani L, Turley H, Sherif M, Pandey G, Filby J, Johnston A, Burke E, Mohamud M, Gohil K, Tsui A, Singh R, Lim S, O'Sullivan K, McKelvey L, O'Neill S, Roberts H, Brown F, Cao Y, Buckle R, Liew Y, Sii S, Ventre C, Graham C, Filipescu T, Yousif A, Dawar R, Wright A, Peters M, Varley R, Owczarek S, Hartley S, Khattak M, Iqbal A, Ali M, Durrani B, Narang Y, Bethell G, Horne L, Pinto R, Nicholls K, Kisyov I, Torrance H, English W, Lakhani S, Ashraf S, Venn M, Elangovan V, Kazmi Z, Brecher J, Sukumar S, Mastan A, Mortimer A, Parker J, Boyle J, Elkawafi M, Beckett J, Mohite A, Narain A, Mazumdar E, Sreh A, Hague A, Weinberg D, Fletcher L, Steel M, Shufflebotham H, Masood M, Sinha Y, Jenvey C, Kitt H, Slade R, Craig A, Deall C, Reakes T, Chervenkoff J, Strange E, O'Bryan M, Murkin C, Joshi D, Bergara T, Naqib S, Wylam D, Scotcher S, Hewitt C, Stoddart M, Kerai A, Trist A, Cole S, Knight C, Stevens S, Cooper G, Ingham R, Dobson J, O'Kane A, Moradzadeh J, Duffy A, Henderson C, Ashraf S, McLaughin C, Hoskins T, Reehal R, Bookless L, McLean R, Stone E, Wright E, Abdikadir H, Roberts C, Spence O, Srikantharajah M, Ruiz E, Matthews J, Gardner E, Hester E, Naran P, Simpson R, Minhas M, Cornish E, Semnani S, Rojoa D, Radotra A, Eraifej J, Eparh K, Smith D, Mistry B, Hickling S, Din W, Liu C, Mithrakumar P, Mirdavoudi V, Rashid M, Mcgenity C, Hussain O, Kadicheeni M, Gardner H, Anim-Addo N, Pearce J, Aslanyan A, Ntala C, Sorah T, Parkin J, Alizadeh M, White A, Edozie F, Johnston J, Kahar A, Navayogaarajah V, Patel B, Carter D, Khonsari P, Burgess A, Kong C, Ponweera A, Cody A, Tan Y, Ng A, Croall A, Allan C, Ng S, Raghuvir V, Telfer R, Greenhalgh A, McKerr C, Edison M, Patel B, Dear K, Hardy M, Williams P, Hassan S, Sajjad U, O'Neill E, Lopes S, Healy L, Jamal N, Tan S, Lazenby D, Husnoo S, Beecroft S, Sarvanandan T, Weston C, Bassam N, Rabinthiran S, Hayat U, Ng L, Varma D, Sukkari M, Mian A, Omar A, Kim J, Sellathurai J, Mahmood J, O'Connell C, Bose R, Heneghan H, Lalor P, Matheson J, Doherty C, Cullen C, Cooper D, Angelov S, Drislane C, Smith A, Kreibich A, Palkhi E, Durr A, Lotfallah A, Gold D, Mckean E, Dhanji A, Anilkumar A, Thacoor A, Siddiqui Z, Lim S, Piquet A, Anderson S, McCormack D, Gulati J, Ibrahim A, Murray S, Walsh S, McGrath A, Ziprin P, Chua E, Lou C, Bloomer J, Paine H, Osei-Kuffour D, White C, Szczap A, Gokani S, Patel K, Malys M, Reed A, Torlot G, Cumber E, Charania A, Ahmad S, Varma N, Cheema H, Austreng L, Petra H, Chaudhary M, Zegeye M, Cheung F, Coffey D, Heer R, Singh S, Seager E, Cumming S, Suresh R, Verma S, Ptacek I, Gwozdz A, Yang T, Khetarpal A, Shumon S, Fung T, Leung W, Kwang P, Chew L, Loke W, Curran A, Chan C, McGarrigle C, Mohan K, Cullen S, Wong E, Toale C, Collins D, Keane N, Traynor B, Shanahan D, Yan A, Jafree D, Topham C, Mitrasinovic S, Omara S, Bingham G, Lykoudis P, Miranda B, Whitehurst K, Kumaran G, Devabalan Y, Aziz H, Shoa M, Dindyal S, Yates J, Bernstein I, Rattan G, Coulson R, Stezaker S, Isaac A, Salem M, McBride A, McFarlane H, Yow L, MacDonald J, Bartlett R, Turaga S, White U, Liew W, Yim N, Ang A, Simpson A, McAuley D, Craig E, Murphy L, Shepherd P, Kee J, Abdulmajid A, Chung A, Warwick H, Livesey A, Holton P, Theodoreson M, Jenkin S, Turner J, Entwisle J, Marchal S, O'Connor S, Blege H, Aithie J, Sabine L, Stewart G, Jackson S, Kishore A, Lankage C, Acquaah F, Joyce H, McKevitt K, Coffey C, Fawaz A, Dolbec K, O'Sullivan D, Geraghty J, Lim E, Bolton L, FitzPatrick D, Robinson C, Ramtoola T, Collinson S, Grundy L, McEnhill P, Harbhajan Singh G, Loughran D, Golding D, Keeling R, Williams R, Whitham R, Yoganathan S, Nachiappan R, Egan R, Owasil R, Kwan M, He A, Goh R, Bhome R, Wilson H, Teoh P, Raji K, Jayakody N, Matthams J, Chong J, Luk C, Greig R, Trail M, Charalambous G, Rocke A, Gardiner N, Bulley F, Warren N, Brennan E, Fergurson P, Wilson R, Whittingham H, Brown E, Khanijau R, Gandhi K, Morris S, Boulton A, Chandan N, Barthorpe A, Maamari R, Sandhu S, McCann M, Higgs L, Balian V, Reeder C, Diaper C, Sale T, Ali H, Archer C, Clarke A, Heskin J, Hurst P, Farmer J, O'Flynn L, Doan L, Shuker B, Stott G, Vithanage N, Hoban K, Nesargikar P, Kennedy H, Grossart C, Tan E, Roy C, Sim P, Leslie K, Sim D, Abul M, Cody N, Tay A, Woon E, Sng S, Mah J, Robson J, Shakweh E, Wing V, Mills H, Li M, Barrow T, Balaji S, Jordan H, Phillips C, Naveed H, Hirani S, Tai A, Ratnakumaran R, Sahathevan A, Shafi A, Seedat M, Weaver R, Batho A, Punj R, Selvachandran H, Bhatt N, Botchey S, Khonat Z, Brennan K, Morrison C, Devlin E, Linton A, Galloway E, McGarvie S, Ramsay N, McRobbie H, Whewell H, Dean W, Nelaj S, Eragat M, Mishra A, Kane T, Zuhair M, Wells M, Wilkinson D, Woodcock N, Sun E, Aziz N, Ghaffar MKA. Critical care usage after major gastrointestinal and liver surgery: a prospective, multicentre observational study. Br J Anaesth 2019; 122:42-50. [PMID: 30579405 DOI: 10.1016/j.bja.2018.07.029] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/15/2018] [Revised: 07/19/2018] [Accepted: 07/23/2018] [Indexed: 11/23/2022] Open
Abstract
BACKGROUND Patient selection for critical care admission must balance patient safety with optimal resource allocation. This study aimed to determine the relationship between critical care admission, and postoperative mortality after abdominal surgery. METHODS This prespecified secondary analysis of a multicentre, prospective, observational study included consecutive patients enrolled in the DISCOVER study from UK and Republic of Ireland undergoing major gastrointestinal and liver surgery between October and December 2014. The primary outcome was 30-day mortality. Multivariate logistic regression was used to explore associations between critical care admission (planned and unplanned) and mortality, and inter-centre variation in critical care admission after emergency laparotomy. RESULTS Of 4529 patients included, 37.8% (n=1713) underwent planned critical care admissions from theatre. Some 3.1% (n=86/2816) admitted to ward-level care subsequently underwent unplanned critical care admission. Overall 30-day mortality was 2.9% (n=133/4519), and the risk-adjusted association between 30-day mortality and critical care admission was higher in unplanned [odds ratio (OR): 8.65, 95% confidence interval (CI): 3.51-19.97) than planned admissions (OR: 2.32, 95% CI: 1.43-3.85). Some 26.7% of patients (n=1210/4529) underwent emergency laparotomies. After adjustment, 49.3% (95% CI: 46.8-51.9%, P<0.001) were predicted to have planned critical care admissions, with 7% (n=10/145) of centres outside the 95% CI. CONCLUSIONS After risk adjustment, no 30-day survival benefit was identified for either planned or unplanned postoperative admissions to critical care within this cohort. This likely represents appropriate admission of the highest-risk patients. Planned admissions in selected, intermediate-risk patients may present a strategy to mitigate the risk of unplanned admission. Substantial inter-centre variation exists in planned critical care admissions after emergency laparotomies.
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Beck A, Franz CE, Stevens S, Kremen WS. UNDERSTANDING COGNITION IN THE CONTEXT OF URBAN-RURAL ENVIRONMENT AND CHILDHOOD SOCIOECONOMIC STATUS. Innov Aging 2018. [DOI: 10.1093/geroni/igy023.1296] [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] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Affiliation(s)
- A Beck
- San Diego State University, San Diego, California, United States
| | - C E Franz
- University of California San Diego, La Jolla, CA, USA
| | - S Stevens
- University of California San Diego, La Jolla, CA, USA
| | - W S Kremen
- University of California San Diego, La Jolla, CA, USA, Center of Excellence for Stress and Mental Health, VA San Diego Healthcare System, La Jolla, CA, USA
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Franz C, Stevens S, Hernandez J, Tai C, Slayday R, Kremen W. ASSOCIATIONS OF CHILDHOOD TRAUMA AND ADULT RESILIENCE WITH HIPPOCAMPAL VOLUME IN LATE MIDLIFE. Innov Aging 2018. [DOI: 10.1093/geroni/igy023.1404] [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] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Affiliation(s)
- C Franz
- University of California San Diego
| | - S Stevens
- University of California San Diego, La Jolla, CA, USA
| | - J Hernandez
- University of California San Diego, La Jolla, CA, USA
| | - C Tai
- University of California San Diego, La Jolla, CA, USA
| | | | - W Kremen
- University of California San Diego, La Jolla, CA, USA
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Redondo MJ, Geyer S, Steck AK, Sharp S, Wentworth JM, Weedon MN, Antinozzi P, Sosenko J, Atkinson M, Pugliese A, Oram RA, Antinozzi P, Atkinson M, Battaglia M, Becker D, Bingley P, Bosi E, Buckner J, Colman P, Gottlieb P, Herold K, Insel R, Kay T, Knip M, Marks J, Moran A, Palmer J, Peakman M, Philipson L, Pugliese A, Raskin P, Rodriguez H, Roep B, Russell W, Schatz D, Wherrett D, Wilson D, Winter W, Ziegler A, Benoist C, Blum J, Chase P, Clare-Salzler M, Clynes R, Eisenbarth G, Fathman C, Grave G, Hering B, Kaufman F, Leschek E, Mahon J, Nanto-Salonen K, Nepom G, Orban T, Parkman R, Pescovitz M, Peyman J, Roncarolo M, Simell O, Sherwin R, Siegelman M, Steck A, Thomas J, Trucco M, Wagner J, Greenbaum ,CJ, Bourcier K, Insel R, Krischer JP, Leschek E, Rafkin L, Spain L, Cowie C, Foulkes M, Krause-Steinrauf H, Lachin JM, Malozowski S, Peyman J, Ridge J, Savage P, Skyler JS, Zafonte SJ, Kenyon NS, Santiago I, Sosenko JM, Bundy B, Abbondondolo M, Adams T, Amado D, Asif I, Boonstra M, Bundy B, Burroughs C, Cuthbertson D, Deemer M, Eberhard C, Fiske S, Ford J, Garmeson J, Guillette H, Browning G, Coughenour T, Sulk M, Tsalikan E, Tansey M, Cabbage J, Dixit N, Pasha S, King M, Adcock K, Geyer S, Atterberry H, Fox L, Englert K, Mauras N, Permuy J, Sikes K, Berhe T, Guendling B, McLennan L, Paganessi L, Hays B, Murphy C, Draznin M, Kamboj M, Sheppard S, Lewis V, Coates L, Moore W, Babar G, Bedard J, Brenson-Hughes D, Henderson C, Cernich J, Clements M, Duprau R, Goodman S, Hester L, Huerta-Saenz L, Karmazin A, Letjen T, Raman S, Morin D, Henry M, Bestermann W, Morawski E, White J, Brockmyer A, Bays R, Campbell S, Stapleton A, Stone N, Donoho A, Everett H, Heyman K, Hensley H, Johnson M, Marshall C, Skirvin N, Taylor P, Williams R, Ray L, Wolverton C, Nickels D, Dothard C, Hsiao B, Speiser P, Pellizzari M, Bokor L, Izuora K, Abdelnour S, Cummings P, Paynor S, Leahy M, Riedl M, Shockley S, Karges C, Saad R, Briones T, Casella S, Herz C, Walsh K, Greening J, Hay F, Hunt S, Sikotra N, Simons L, Keaton N, Karounos D, Oremus R, Dye L, Myers L, Ballard D, Miers W, Sparks R, Thraikill K, Edwards K, Fowlkes J, Kinderman A, Kemp S, Morales A, Holland L, Johnson L, Paul P, Ghatak A, Phelen K, Leyland H, Henderson T, Brenner D, Law P, Oppenheimer E, Mamkin I, Moniz C, Clarson C, Lovell M, Peters A, Ruelas V, Borut D, Burt D, Jordan M, Leinbach A, Castilla S, Flores P, Ruiz M, Hanson L, Green-Blair J, Sheridan R, Wintergerst K, Pierce G, Omoruyi A, Foster M, Linton C, Kingery S, Lunsford A, Cervantes I, Parker T, Price P, Urben J, Doughty I, Haydock H, Parker V, Bergman P, Liu S, Duncum S, Rodda C, Thomas A, Ferry R, McCommon D, Cockroft J, Perelman A, Calendo R, Barrera C, Arce-Nunez E, Lloyd J, Martinez Y, De la Portilla M, Cardenas I, Garrido L, Villar M, Lorini R, Calandra E, D’Annuzio G, Perri K, Minuto N, Malloy J, Rebora C, Callegari R, Ali O, Kramer J, Auble B, Cabrera S, Donohoue P, Fiallo-Scharer R, Hessner M, Wolfgram P, Maddox K, Kansra A, Bettin N, 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P, Dinning L, Rahman S, Ray S, Dimicri C, Guppy S, Nielsen H, Vogel C, Ariza C, Morales L, Chang Y, Gabbay R, Ambrocio L, Manley L, Nemery R, Charlton W, Smith P, Kerr L, Steindel-Kopp B, Alamaguer M, Tabisola-Nuesca E, Pendersen A, Larson N, Cooper-Olviver H, Chan D, Fitz-Patrick D, Carreira T, Park Y, Ruhaak R, Liljenquist D. A Type 1 Diabetes Genetic Risk Score Predicts Progression of Islet Autoimmunity and Development of Type 1 Diabetes in Individuals at Risk. Diabetes Care 2018; 41:1887-1894. [PMID: 30002199 PMCID: PMC6105323 DOI: 10.2337/dc18-0087] [Citation(s) in RCA: 86] [Impact Index Per Article: 14.3] [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: 01/11/2018] [Accepted: 06/06/2018] [Indexed: 02/03/2023]
Abstract
OBJECTIVE We tested the ability of a type 1 diabetes (T1D) genetic risk score (GRS) to predict progression of islet autoimmunity and T1D in at-risk individuals. RESEARCH DESIGN AND METHODS We studied the 1,244 TrialNet Pathway to Prevention study participants (T1D patients' relatives without diabetes and with one or more positive autoantibodies) who were genotyped with Illumina ImmunoChip (median [range] age at initial autoantibody determination 11.1 years [1.2-51.8], 48% male, 80.5% non-Hispanic white, median follow-up 5.4 years). Of 291 participants with a single positive autoantibody at screening, 157 converted to multiple autoantibody positivity and 55 developed diabetes. Of 953 participants with multiple positive autoantibodies at screening, 419 developed diabetes. We calculated the T1D GRS from 30 T1D-associated single nucleotide polymorphisms. We used multivariable Cox regression models, time-dependent receiver operating characteristic curves, and area under the curve (AUC) measures to evaluate prognostic utility of T1D GRS, age, sex, Diabetes Prevention Trial-Type 1 (DPT-1) Risk Score, positive autoantibody number or type, HLA DR3/DR4-DQ8 status, and race/ethnicity. We used recursive partitioning analyses to identify cut points in continuous variables. RESULTS Higher T1D GRS significantly increased the rate of progression to T1D adjusting for DPT-1 Risk Score, age, number of positive autoantibodies, sex, and ethnicity (hazard ratio [HR] 1.29 for a 0.05 increase, 95% CI 1.06-1.6; P = 0.011). Progression to T1D was best predicted by a combined model with GRS, number of positive autoantibodies, DPT-1 Risk Score, and age (7-year time-integrated AUC = 0.79, 5-year AUC = 0.73). Higher GRS was significantly associated with increased progression rate from single to multiple positive autoantibodies after adjusting for age, autoantibody type, ethnicity, and sex (HR 2.27 for GRS >0.295, 95% CI 1.47-3.51; P = 0.0002). CONCLUSIONS The T1D GRS independently predicts progression to T1D and improves prediction along T1D stages in autoantibody-positive relatives.
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Affiliation(s)
- Maria J. Redondo
- Texas Children’s Hospital, Baylor College of Medicine, Houston, TX
| | | | - Andrea K. Steck
- Barbara Davis Center for Childhood Diabetes, University of Colorado School of Medicine, Aurora, CO
| | - Seth Sharp
- Institute of Biomedical and Clinical Science, University of Exeter, Exeter, U.K
| | - John M. Wentworth
- Walter and Eliza Hall Institute of Medical Research and Royal Melbourne Hospital, Parkville, Victoria, Australia
| | - Michael N. Weedon
- Institute of Biomedical and Clinical Science, University of Exeter, Exeter, U.K
| | | | | | | | | | - Richard A. Oram
- Institute of Biomedical and Clinical Science, University of Exeter, Exeter, U.K
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| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | 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Verbrugghe J, Agten A, Stevens S, Eijnde B, Vandenabeele F, Timmermans A. Effects of high intensity training on pain, disability, exercise capacity and muscle strength in persons with nonspecific chronic low back pain: Preliminary RCT results. Ann Phys Rehabil Med 2018. [DOI: 10.1016/j.rehab.2018.05.036] [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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Stevens S, Dvorak P, Spevacek V, Pilarova K, Bray-Parry M, Gesner J, Richmond A. An assessment of a 3D EPID-based dosimetry system using conventional two- and three-dimensional detectors for VMAT. Phys Med 2018; 45:25-34. [DOI: 10.1016/j.ejmp.2017.11.014] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/03/2017] [Revised: 10/05/2017] [Accepted: 11/19/2017] [Indexed: 10/18/2022] Open
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Nicholson BD, Aveyard P, Hobbs FDR, Smith M, Fuller A, Perera R, Hamilton W, Stevens S, Bankhead CR. Weight loss as a predictor of cancer and serious disease in primary care: an ISAC-approved CPRD protocol for a retrospective cohort study using routinely collected primary care data from the UK. Diagn Progn Res 2018; 2:1. [PMID: 31093551 PMCID: PMC6460783 DOI: 10.1186/s41512-017-0019-9] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/26/2016] [Accepted: 11/16/2017] [Indexed: 11/25/2022] Open
Abstract
BACKGROUND Unexpected weight loss is a symptom of serious disease in primary care, for example between 1 in 200 and 1 in 30 patients with unexpected weight loss go on to develop cancer. However, it remains unclear how and when general practitioners (GPs) should investigate unexpected weight loss. Without clarification, GPs may wait too long before referring (choosing to watch and wait and potentially missing a diagnosis) or not long enough (overburdening hospital services and exposing patients to the risks of investigation). The overall aim of this study is to provide the evidence necessary to allow GPs to more effectively manage patients with unexpected weight loss. METHODS A retrospective cohort analysis of UK Clinical Practice Research Datalink (CPRD) data to: (1) describe how often in UK primary care the symptom of reported weight loss is coded, when weight is measured, and how GPs respond to a patient attending with unexpected weight loss; (2) identify the predictive value of recorded weight loss for cancer and serious disease in primary care, using cumulative incidence plots to compare outcomes between subgroups and Cox regression to explore and adjust for covariates. Preliminary work in CPRD estimates that weight loss as a symptom is recorded for approximately 148,000 eligible patients > 18 years and is distributed evenly across decades of age, providing adequate statistical power and precision in relation to cancer overall and common cancers individually. Further stratification by cancer stage will be attempted but may not be possible as not all practices within CPRD are eligible for cancer registry linkage, and staging information is often incomplete. The feasibility of using multiple imputation to address missing covariate values will be explored. DISCUSSION This will be the largest reported retrospective cohort of primary care patients with weight measurements and unexpected weight loss codes used to understand the association between weight measurement, unexpected weight loss, and serious disease including cancer. Our findings will directly inform international guidelines for the management of unexpected weight loss in primary care populations.
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Affiliation(s)
- B. D. Nicholson
- 0000 0004 1936 8948grid.4991.5Nuffield Department of Primary Care Health Sciences, Radcliffe Observatory Quarter, University of Oxford, Oxford, OX2 6GG UK
| | - P. Aveyard
- 0000 0004 1936 8948grid.4991.5Nuffield Department of Primary Care Health Sciences, Radcliffe Observatory Quarter, University of Oxford, Oxford, OX2 6GG UK
| | - F. D. R. Hobbs
- 0000 0004 1936 8948grid.4991.5Nuffield Department of Primary Care Health Sciences, Radcliffe Observatory Quarter, University of Oxford, Oxford, OX2 6GG UK
| | - M. Smith
- 0000 0004 1936 8948grid.4991.5Nuffield Department of Primary Care Health Sciences, Radcliffe Observatory Quarter, University of Oxford, Oxford, OX2 6GG UK
| | - A. Fuller
- 0000 0004 1936 8948grid.4991.5Nuffield Department of Primary Care Health Sciences, Radcliffe Observatory Quarter, University of Oxford, Oxford, OX2 6GG UK
| | - R. Perera
- 0000 0004 1936 8948grid.4991.5Nuffield Department of Primary Care Health Sciences, Radcliffe Observatory Quarter, University of Oxford, Oxford, OX2 6GG UK
| | - W. Hamilton
- 0000 0004 1936 8024grid.8391.3University of Exeter, Medical School, St Luke’s Campus, Exeter, EX1 2LU UK
| | - S. Stevens
- 0000 0004 1936 8948grid.4991.5Nuffield Department of Primary Care Health Sciences, Radcliffe Observatory Quarter, University of Oxford, Oxford, OX2 6GG UK
| | - C. R. Bankhead
- 0000 0004 1936 8948grid.4991.5Nuffield Department of Primary Care Health Sciences, Radcliffe Observatory Quarter, University of Oxford, Oxford, OX2 6GG UK
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Stimpson A, N.Tanner, Stevens S, Ma J, Tinsley B, Brown C, Hpkins L, Loughran D, Tate S, Boyce K, Harries R, Bosanquet D. Trends in Antiplatelet Therapy Pre and Post Carotid Endarterectomy – A Sticking Point in Current Practice? Int J Surg 2017. [DOI: 10.1016/j.ijsu.2017.08.547] [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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Turner H, Stevens S, McGhee T, Doherty D, Lane P. Abstract 28: Virginia Stroke Coordinators Successfully Collaborate to Improve Door to Needle Times and EMS Relationships. Stroke 2017. [DOI: 10.1161/str.48.suppl_1.28] [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] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Background and Issues:
The Virginia Stroke Coordinators Consortium (VSCC) was founded in 2009 with a stated goal of striving for high-level evidence based stroke care for all Virginians.
Purpose:
In CY2015, the VSCC set two specific goals, to improve arrival to IV TPA administration (“Door to Needle”-DTN) times in Virginia and to improve our stroke team relationships with EMS.
DTN Time Methods:
We shared the Target Stroke Phase 2information and best practices, we regularly shared our own best practices at our monthly meetings (one live meeting per quarter) through formal presentations and informal discussion, we reviewed current journal publications related to decreasing DTN times and we shared information about and encouraged participation in nationally offered webinars on improving arrival to CT and DTN times.
DTN Time Results:
29 of the 60 hospitals represented within the VSCC participate in Get with the Guidelines so we used that data as a sample of our work. To measure our success, we compared CY2014 Target Stroke Honor Roll reports to CY2015 for the state of Virginia and saw improvement (beyond the level of improvement seen at the national level) in every measure including percent of ischemic strokes that received thrombolysis, percent of patients with a DTN time of 60m or less and percent of patients with a DTN time of 45m or less (including and excluding patients with documented reasons for delay.)
EMS Methods:
Again, shared Target Stroke and our own best practices, shared EMS feedback methods and standardized feedback forms, included EMS in our meetings and presentations, encouraged communication with local EMS providers, worked with state wide EMS to develop template for post TPA transport.
EMS Results:
The VSCC was surveyed in April of 2014(n-34) and again in April 2015(n-31). We saw that the number of coordinators interacting with EMS increased to 100% of respondents, frequency of EMS interaction increased, those with monthly interaction doubled, EMS feedback increased and 48% of respondents felt their relationships with EMS had improved. (43% already felt they had a good relationship.)
Conclusion:
Working together, Stroke Coordinators can significantly lower door to IV TPA times and improve stroke team relationships with EMS throughout the state.
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Bledsoe J, Aston V, Patten R, Woller S, Stevens S, Allen T, Elliott G. 5∗ Low-Risk Pulmonary Embolism (LOPE) Patients Can Be Safely Managed as Outpatients. Ann Emerg Med 2016. [DOI: 10.1016/j.annemergmed.2016.08.015] [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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Bem D, Lordkipanidzé M, Hodgkinson J, Stevens S, Bayliss S, Moore D, Fitzmaurice D, Dretzke J. The Effects of Different Aspirin Dosing Frequencies and the Timing of Aspirin Intake in Primary and Secondary Prevention of Cardiovascular Disease: A Systematic Review. Clin Pharmacol Ther 2016; 100:500-512. [DOI: 10.1002/cpt.438] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/26/2016] [Revised: 06/23/2016] [Accepted: 07/15/2016] [Indexed: 12/19/2022]
Affiliation(s)
- D Bem
- Institute of Applied Health Research, College of Medical & Dental Sciences; University of Birmingham; Edgbaston Birmingham UK
| | - M Lordkipanidzé
- Montreal Heart Institute; Research Centre; Montréal QC Canada
- Université de Montreal, Faculté de pharmacie; Montreal QC Canada
| | - J Hodgkinson
- Institute of Applied Health Research, College of Medical & Dental Sciences; University of Birmingham; Edgbaston Birmingham UK
| | - S Stevens
- Institute of Applied Health Research, College of Medical & Dental Sciences; University of Birmingham; Edgbaston Birmingham UK
| | - S Bayliss
- Institute of Applied Health Research, College of Medical & Dental Sciences; University of Birmingham; Edgbaston Birmingham UK
| | - D Moore
- Institute of Applied Health Research, College of Medical & Dental Sciences; University of Birmingham; Edgbaston Birmingham UK
| | - D Fitzmaurice
- Institute of Applied Health Research, College of Medical & Dental Sciences; University of Birmingham; Edgbaston Birmingham UK
| | - J Dretzke
- Institute of Applied Health Research, College of Medical & Dental Sciences; University of Birmingham; Edgbaston Birmingham UK
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Kumar S, Li X, Dong L, Yu G, Shelton B, Chen L, Stevens S, Kudrimoti M. Measurement and Clinical Correlation of Head and Neck Tumor Hemodynamic Responses to Radiation Therapy. Int J Radiat Oncol Biol Phys 2015. [DOI: 10.1016/j.ijrobp.2015.07.311] [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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Lin C, Bruinooge S, Kirkwood K, Hershman D, Jemal A, Yu J, Guadagnolo B, Hopkins S, Goldstein M, Bajorin D, Giordano S, Kosty M, Arnone A, Hanley A, Stevens S, Olsen C. Association Between Geographic Access and Receipt of Radiation Therapy. Int J Radiat Oncol Biol Phys 2015. [DOI: 10.1016/j.ijrobp.2015.07.1484] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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Bila M, Defrancq J, Nadjmi N, Renier L, Stevens S, Vanassche B, Van de Perre J, Van Hemelen G, Vercruysse H. CBCT analysis of skeletal, dental and nasal changes after transpalatal distraction. Int J Oral Maxillofac Surg 2015. [DOI: 10.1016/j.ijom.2015.08.475] [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: 11/17/2022]
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Nadjmi N, Stevens S, Van Erum R. Mandibular midline distraction using a tooth-borne device and a minimally invasive surgical procedure. Int J Oral Maxillofac Surg 2015; 44:452-4. [DOI: 10.1016/j.ijom.2014.11.004] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/16/2014] [Revised: 08/31/2014] [Accepted: 11/05/2014] [Indexed: 11/25/2022]
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Selleck LF, Feeser VR, Stalnaker GR, Stevens S, Wacksman L, Felton WL. Abstract W P346: Sustainable Reduction in IV TPA Door to Needle Time Using Key Elements from Target Stroke Tool Kit. Stroke 2015. [DOI: 10.1161/str.46.suppl_1.wp346] [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] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Current literature clearly demonstrates decreased in-hospital mortality and increased functional outcomes with every 15 minute reduction in door-to-needle (DTN) time for IV-TPA treatment. At VCU Health System, 70% of eligible acute ischemic stroke (AIS) patients received IV-TPA treatment within 60 minutes of hospital arrival, with a median DTN time of 56 minutes for the time period between May 2012 to April 2013. The goal was to further increase percentage of eligible AIS patients receiving IV-TPA within 60 minutes of hospital arrival and decrease DTN time for IV-TPA treatment. A systematic approach was used to retrospectively analyze IV-TPA charts, identify rate limiting factors in administration of IV-TPA and implement clinical process changes. As a result of implementing an organized team approach, pre-hospital stroke alerts, immediate aggressive BP management, pre-mixing IV-TPA and prompt feedback, the number of eligible AIS patients that received IV-TPA within 60 minutes increased 43% from 70% to 100%. The median DTN time decreased 36% from 56 minutes to 36 minutes for the time period between May 2013 to May 2014.
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Stevens S, Gesner J. EP-1463: Optimising the accuracy of the triple channel film dosimetry technique. Radiother Oncol 2014. [DOI: 10.1016/s0167-8140(15)31581-4] [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: 11/27/2022]
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Kudrimoti M, Dong L, Treharne G, Johnson E, Stevens S, Shelton B, Yu G. Instantaneous Blood Flow and Oxygenation Changes Noted in Real Time During Radiation Therapy Delivery in Head and Neck Squamous Cancers. Int J Radiat Oncol Biol Phys 2013. [DOI: 10.1016/j.ijrobp.2013.06.1670] [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: 10/26/2022]
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Parke E, Hart J, Baldock D, Barchard K, Etcoff L, Allen D, Stolberg P, Nardi N, Cohen J, Jones W, Loe S, Etcoff L, Delgaty L, Tan A, Bunner M, Delgaty L, Tan A, Bunner M, Tan A, Delgaty L, Bunner M, Tan A, Delgaty L, Bunner M, Goodman G, Kim W, Nolty A, Marion S, Davis A, Finch W, Piehl J, Moss L, Nogin R, Dean R, Davis J, Lindstrom W, Poon M, Fonseca F, Bure-Reyes A, Stewart J, Golden C, Fonseca F, Bure-Reyes A, Stewart J, Golden C, Fields K, Hill B, Corley E, Russ K, Boettcher A, Musso M, Rohling M, Rowden A, Downing K, Benners M, Miller D, Maricle D, Dugbartey T, Anum A, Anderson J, Daniel M, Hoskins L, Gillis K, Khen S, Carter K, Ayers C, Neeland I, Cullum M, Weiner M, Rossetti H, Buddin W, Mahal S, Schroeder R, Baade L, Macaluso M, Phelps K, Evans C, Clark J, Vickery C, Chow J, Stokic D, Phelps K, Evans C, Watson S, Odom R, Clark J, Clark J, Odom R, Evans C, Vickery C, Thompson J, Noggle C, Kane C, Kecala N, Lane E, Raymond M, Woods S, Iudicello J, Dawson M, Ghias A, Choe M, Yudovin S, McArthur D, Asarnow R, Giza C, Babikian T, Tun S, O'Neil M, Ensley M, Storzbach D, Ellis R, O'Neil M, Carlson K, Storzbach D, Brenner L, Freeman M, Quinones A, Motu'apuaka M, Ensley M, Kansagara D, Brickell T, Grant I, Lange R, Kennedy J, Ivins B, Marshall K, Prokhorenko O, French L, Brickell T, Lange R, Bhagwat A, French L, Weber E, Nemeth D, Songy C, Gremillion A, Lange R, Brubacher J, Shewchuk J, Heran M, Jarrett M, Rauscher A, Iverson G, Woods S, Ukueberuwa D, Medaglia J, Hillary F, Meyer J, Vargas G, Rabinowitz A, Barwick F, Arnett P, Levan A, Gale S, Atkinson J, Boettcher A, Hill B, Rohling M, Stolberg P, Hart J, Allen D, Mayfield J, Ellis M, Marion SD, Houshyarnejad A, Grant I, Akarakian R, Kernan C, Babikian T, Asarnow R, Bens M, Fisher M, Garrett C, Vinogradov S, Walker K, Torstrick A, Uderman J, Wellington R, Zhao L, Fromm N, Dahdah M, Salisbury D, Monden K, Lande E, Wanlass R, Fong G, Smith K, Miele A, Novakovic-Agopian T, Chen A, Rome S, Rossi A, Abrams G, Murphy M, Binder D, Muir J, Carlin G, Loya F, Rabinovitz B, Bruhns M, Adler M, Schleicher-Dilks S, Messerly J, Babika C, Ukpabi C, Golden C, Schleicher-Dilks S, Coad S, Messerly J, Schaffer S, Babika C, Golden C, Cowad S, Paisley S, Fontanetta R, Messerly J, Golden C, Holder C, Kloezeman K, Henry B, Burns W, Patt V, Minassian A, Perry W, Cooper L, Allen D, Vogel S, Woolery H, Ciobanu C, Simone A, Bedard A, Olivier T, O'Neill S, Rajendran K, Halperin J, Rudd-Barnard A, Steenari M, Murry J, Le M, Becker T, Mucci G, Zupanc M, Shapiro E, Santos O, Cadavid N, Giese E, Londono N, Osmon D, Zamzow J, Culnan E, D'Argenio D, Mosti C, Spiers M, Schleicher-Dilks S, Kloss J, Curiel A, Miller K, Olmstead R, Gottuso A, Saucier C, Miller J, Dye R, Small G, Kent A, Andrews P, Puente N, Terry D, Faraco C, Brown C, Patel A, Siegel J, Miller L, Lee B, Joan M, Thaler N, Fontanetta R, Carla F, Allen D, Nguyen T, Glass L, Coles C, Julie K, May P, Sowell E, Jones K, Riley E, Demsky Y, Mattson S, Allart A, Freer B, Tiersky L, Sunderaraman P, Sylvester P, Ang J, Schultheis M, Newton S, Holland A, Burns K, Bunting J, Taylor J, Muetze H, Coe M, Harrison D, Putnam M, Tiersky L, Freer B, Holland A, Newton S, Sakamoto M, Bunting J, Taylor J, Coe M, Harrison D, Musso M, Hill B, Barker A, Pella R, Gouvier W, Davis J, Woods S, Wall J, Etherton J, Brand T, Hummer B, O'Shea C, Segovia J, Thomlinson S, Schulze E, Roskos P, Gfeller J, Loftis J, Fogel T, Barrera K, Sherzai A, Chappell A, Harrison A, Armstrong I, Flaro L, Pedersen H, Shultz LS, Roper B, Huckans M, Basso M, Silk-Eglit G, Stenclik J, Miele A, Lynch J, McCaffrey R, Silk-Eglit G, Stenclik J, Miele A, Lynch J, Musso M, McCaffrey R, Martin P, VonDran E, Baade L, Heinrichs R, Schroeder R, Hunter B, Calloway J, Rolin S, Akeson S, Westervelt H, Mohammed S, An K, Jeffay E, Zakzanis K, Lynch A, Drasnin D, Ikanga J, Graham O, Reid M, Cooper D, Long J, Lange R, Kennedy J, Hopewell C, Lukaszewska B, Pachalska M, Bidzan M, Lipowska M, McCutcheon L, Kaup A, Park J, Morgan E, Kenton J, Norman M, Martin P, Netson K, Woods S, Smith M, Paulsen J, Hahn-Ketter A, Paxton J, Fink J, Kelley K, Lee R, Pliskin N, Segala L, Vasilev G, Bozgunov K, Naslednikova R, Raynov I, Gonzalez R, Vassileva J, Bonilla X, Fedio A, Johnson K, Sexton J, Blackstone K, Weber E, Moore D, Grant I, Woods S, Pimental P, Welch M, Ring M, Stranks E, Crowe S, Jaehnert S, Ellis C, Prince C, Wheaton V, Schwartz D, Loftis J, Fuller B, Hoffman W, Huckans M, Turecka S, McKeever J, Morse C, Schultheis M, Dinishak D, Dasher N, Vik P, Hachey D, Bowman B, Van Ness E, Williams C, Zamzow J, Sunderaraman P, Kloss J, Spiers M, Swirsky-Sacchetti T, Alhassoon O, Taylor M, Sorg S, Schweinsburg B, Stricker N, Kimmel C, Grant I, Alhassoon O, Taylor M, Sorg S, Schweinsburg B, Stephan R, Stricker N, Grant I, Hertza J, Tyson K, Northington S, Loughan A, Perna R, Davis A, Collier M, Schroeder R, Buddin W, Schroeder R, Moore C, Andrew W, Ghelani A, Kim J, Curri M, Patel S, Denney D, Taylor S, Huberman S, Greenberg B, Lacritz L, Brown D, Hughes S, Greenberg B, Lacritz L, Vargas V, Upshaw N, Whigham K, Peery S, Casto B, Barker L, Otero T, La D, Nunan-Saah J, Phoong M, Gill S, Melville T, Harley A, Gomez R, Adler M, Tsou J, Schleicher-Dilks S, Golden C, Tsou J, Schleicher-Dilks S, Adler M, Golden C, Cowad S, Link J, Barker T, Gulliver K, Golden C, Young K, Moses J, Lum J, Vik P, Legarreta M, Van Ness E, Williams C, Dasher N, Williams C, Vik P, Dasher N, Van Ness E, Bowman B, Nakhutina L, Margolis S, Baek R, Gonzalez J, Hill F, England H, Horne-Moyer L, Stringer A, DeFilippis N, Lyon A, Giovannetti T, Fanning M, Heverly-Fitt S, Stambrook E, Price C, Selnes O, Floyd T, Vogt E, Thiruselvam I, Quasney E, Hoelzle J, Grant N, Moses J, Matevosyan A, Delano-Wood L, Alhassoon O, Hanson K, Lanni E, Luc N, Kim R, Schiehser D, Benners M, Downing K, Rowden A, Miller D, Maricle D, Kaminetskaya M, Moses J, Tai C, Kaminetskaya M, Melville T, Poole J, Scott R, Hays F, Walsh B, Mihailescu C, Douangratdy M, Scott B, Draffkorn C, Andrews P, Schmitt A, Waksmunski C, Brady K, Andrews A, Golden C, Olivier T, Espinoza K, Sterk V, Spengler K, Golden C, Olivier T, Spengler K, Sterk V, Espinoza K, Golden C, Gross J, DeFilippis N, Neiman-Kimel J, Romers C, Isaacs C, Soper H, Sordahl J, Tai C, Moses J, D'Orio V, Glukhovsky L, Beier M, Shuman M, Spat J, Foley F, Guatney L, Bott N, Moses J, Miranda C, Renteria MA, Rosario A, Sheynin J, Fuentes A, Byrd D, Mindt MR, Batchelor E, Meyers J, Patt V, Thomas M, Minassian A, Geyer M, Brown G, Perry W, Smith C, Kiefel J, Rooney A, Gouaux B, Ellis R, Grant I, Moore D, Graefe A, Wyman-Chick K, Daniel M, Beene K, Jaehnert S, Choi A, Moses J, Iudicello J, Henry B, Minassian A, Perry W, Marquine M, Morgan E, Letendre S, Ellis R, Woods S, Grant I, Heaton R, Constantine K, Fine J, Palewjala M, Macher R, Guatney L, Earleywine M, Draffkorn C, Scott B, Andrews P, Schmitt A, Dudley M, Silk-Eglit G, Stenclik J, Miele A, Lynch J, McCaffrey R, Scharaga E, Gomes W, McGinley J, Miles-Mason E, Colvin M, Carrion L, Romers C, Soper H, Zec R, Kohlrus S, Fritz S, Robbs R, Ala T, Zec R, Fritz S, Kohlrus S, Robbs R, Ala T, Edwards M, Hall J, O'Bryant S, Miller J, Dye R, Miller K, Baerresen K, Small G, Moskowitz J, Puente A, Ahmed F, Faraco C, Brown C, Evans S, Chu K, Miller L, Young-Bernier M, Tanguay A, Tremblay F, Davidson P, Duda B, Puente A, Terry D, Kent A, Patel A, Miller L, Junod A, Marion SD, Harrington M, Fonteh A, Gurnani A, John S, Gavett B, Diaz-Santos M, Mauro S, Beaute J, Cronin-Golomb A, Fazeli P, Gouaux B, Rosario D, Heaton R, Moore D, Puente A, Lindbergh C, Chu K, Evans S, Terry D, Duda B, Mackillop J, Miller S, Greco S, Klimik L, Cohen J, Robbins J, Lashley L, Schleicher-Dilks S, Golden C, Kunkes I, Culotta V, Kunkes I, Griffits K, Loughan A, Perna R, Hertza J, Cohen M, Northington S, Tyson K, Musielak K, Fine J, Kaczorowski J, Doty N, Braaten E, Shah S, Nemanim N, Singer E, Hinkin C, Levine A, Gold A, Evankovich K, Lotze T, Yoshida H, O'Bryan S, Roberg B, Glusman M, Ness A, Thelen J, Wilson L, Feaster T, Bruce J, Lobue C, Brown D, Hughes S, Greenberg B, Lacritz L, Bristow-Murray B, Andrews A, Bermudez C, Golden C, Moore R, Pulver A, Patterson T, Bowie C, Harvey P, Jeste D, Mausbach B, Wingo J, Fink J, Lee R, Pliskin N, Legenkaya A, Henry B, Minassian A, Perry W, McKeever J, Morse C, Thomas F, Schultheis M, Ruocco A, Daros A, Gill S, Grimm D, Saini G, Relova R, Hoblyn J, Lee T, Stasio C, Mahncke H, Drag L, Grimm D, Gill S, Saini G, Relova R, Hoblyn J, Lee T, Stasio C, Mahncke H, Drag L, Verbiest R, Ringdahl E, Thaler N, Sutton G, Vogel S, Reyes A, Ringdahl E, Vogel S, Freeman A, Call E, Allen D, March E, Salzberg M, Vogel S, Ringdahl E, Freeman A, Dadis F, Allen D, Sisk S, Ringdahl E, Vogel S, Freeman A, Allen D, DiGangi J, Silva L, Pliskin N, Thieme B, Daniel M, Jaehnert S, Noggle C, Thompson J, Kecala N, Lane E, Kane C, Noggle C, Thompson J, Lane E, Kecala N, Kane C, Palmer G, Happe M, Paxson J, Jurek B, Graca J, Olson S, Melville T, Harley A, La D, Phoong M, Gill S, Jocson VA, Nunan-Saah J, Keller J, Gomez R, Melville T, Kaminetskaya M, Poole J, Vernon A, Van Vleet T, DeGutis J, Chen A, Marini C, Dabit S, Gallegos J, Zomet A, Merzenich M, Thaler N, Linck J, Heyanka D, Pastorek N, Miller B, Romesser J, Sim A, Allen D, Zimmer A, Marcinak J, Hibyan S, Webbe F, Rainwater B, Francis J, Baum L, Sautter S, Donders J, Hui E, Barnes K, Walls G, Erikson S, Bailie J, Schwab K, Ivins B, Boyd C, Neff J, Cole W, Lewis S, Bailie J, Schwab K, Ivins B, Boyd C, Neff J, Cole W, Lewis S, Ramirez C, Oganes M, Gold S, Tanner S, Pina D, Merritt V, Arnett P, Heyanka D, Linck J, Thaler N, Pastorek N, Miller B, Romesser J, Sim A, Parks A, Roskos P, Gfeller J, Clark A, Isham K, Carter J, McLeod J, Romero R, Dahdah M, Barisa M, Schmidt K, Barnes S, Dubiel R, Dunklin C, Harper C, Callender L, Wilson A, Diaz-Arrastia R, Shafi S, Jacquin K, Bolshin L, Jacquin K, Romers C, Gutierrez E, Messerly J, Tsou J, Adler M, Golden C, Harmell A, Mausbach B, Moore R, Depp C, Jeste D, Palmer B, Hoadley R, Hill B, Rohling M, Mahdavi S, Fine J, daCruz K, Dinishak D, Richardson G, Vertinski M, Allen D, Mayfield J, Margolis S, Miele A, Rabinovitz B, Schaffer S, Kline J, Boettcher A, Hill B, Hoadley R, Rohling M, Eichstaedt K, Vale F, Benbadis S, Bozorg A, Rodgers-Neame N, Rinehardt E, Mattingly M, Schoenberg M, Fares R, Fares R, Carrasco R, Grups J, Evans B, Simco E, Mittenberg W, Carrasco R, Grups J, Evans B, Simco E, Mittenberg W, Rach A, Baughman B, Young C, Bene E, Irwin C, Li Y, Poulin R, Jerram M, Susmaras T, Gansler D, Ashendorf L, Miarmi L, Fazio R, Cantor J, Fernandez A, Godoy-Garcete G, Marchetti P, Harrison A, Armstrong I, Harrison L, Iverson G, Brinckman D, Ayaz H, Schultheis M, Heinly M, Vitelli K, Russler K, Sanchez I, Jones W, Loe S, Raines T, Hart J, Bene E, Li Y, Irwin C, Baughman B, Rach A, Bravo J, Schilling B, Weiss L, Lange R, Shewchuk J, Heran M, Rauscher A, Jarrett M, Brubacher J, Iverson G, Zink D, Barney S, Gilbert G, Allen D, Martin P, Schroeder R, Klas P, Jeffay E, Zakzanis K, Iverson G, Lanting S, Saffer B, Koehle M, Palmer B, Barrio C, Vergara R, Muniz M, Pinto L, Jeste D, Stenclik J, Lynch J, McCaffrey R, Shultz LS, Pedersen H, Roper B, Crouse E, Crucian G, Dezhkam N, Mulligan K, Singer R, Psihogios A, Davis A, Stephens B, Love C, Mulligan K, Webbe F, West S, McCue R, Goldin Y, Cicerone K, Ruchinskas R, Seidl JT, Massman P, Tam J, Schmitter-Edgecombe M, Baerresen K, Hanson E, Miller K, Miller J, Yeh D, Kim J, Ercoli L, Siddarth P, Small G, Noback M, Noback M, Baldock D, Mahmoud S, Munic-Miller D, Bonner-Jackson A, Banks S, Rabin L, Emerson J, Smith C, Roberts R, Hass S, Duhig A, Pankratz V, Petersen R, Leibson C, Harley A, Melville T, Phoong M, Gill S, Nunan-Saah J, La D, Gomez R, Lindbergh C, Puente A, Gray J, Chu K, Evans S, Sweet L, MacKillop J, Miller L, McAlister C, Schmitter-Edgecombe M, Baldassarre M, Kamm J, Wolff D, Dombrowski C, Bullard S, Edwards M, Hall J, Parsons T, O'Bryant S, Lawson R, Papadakis A, Higginson C, Barnett J, Wills M, Strang J, Dominska A, Wallace G, Kenworthy L, Bott N, Kletter H, Carrion V, Ward C, Getz G, Peer J, Baum C, Edner B, Mannarino A, Casnar C, Janke K, van der Fluit F, Natalie B, Haberman D, Solomon M, Hunter S, Klein-Tasman B, Starza-Smith A, Talbot E, Hart A, Hall M, Baker J, Kral M, Lally M, Zisk A, Lo T, Ross P, Cuevas M, Patel S, Lebby P, Mouanoutoua A, Harrison J, Pollock M, Mathiowetz C, Romero R, Boys C, Vekaria P, Vasserman M, MacAllister W, Stevens S, Van Hecke A, Carson A, Karst J, Schohl K, Dolan B, McKindles R, Remel R, Reveles A, Fritz N, McDonald G, Wasisco J, Kahne J, Hertza J, Tyson K, Northington S, Loughan A, Perna R, Newman A, Garmoe W, Clark J, Loughan A, Perna R, Hertza J, Cohen M, Northington S, Tyson K, Whithers K, Puente A, Dedmon A, Capps J, Lindsey H, Francis M, Weigand L, Steed A, Puente A, Edmed S, Sullivan K, Puente A, Lindsey H, Dedmon A, Capps J, Whithers K, Weigand L, Steed A, Kark S, Lafleche G, Brown T, Bogdanova Y, Strongin E, Spickler C, Drasnin D, Strongin C, Poreh A, Houshyarnejad A, Ellis M, Babikian T, Kernan C, Asarnow R, Didehbani N, Cullum M, Loneman L, Mansinghani S, Hart J, Fischer J. POSTER SESSIONS SCHEDULE. Arch Clin Neuropsychol 2013. [DOI: 10.1093/arclin/act054] [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: 11/14/2022] Open
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Trembizki E, Lahra MM, Stevens S, Freeman K, Hogg G, Lawrence A, Pearson J, Smith H, Sloots T, Whiley D. P2.032 A National Quality Assurance Survey: Low Neisseria Gonorrhoeae Misidentification Rates in Australia, 2012. Br J Vener Dis 2013. [DOI: 10.1136/sextrans-2013-051184.0297] [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: 11/03/2022]
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Zakout S, Johnson H, Coombes G, Mootoo R, Hickey S, Unsworth J, Smith F, Stevens S, Smith E. AB0332 An audit to examine whether there is a correlation between levels of anti-cyclic citrullinated peptide (CCP) antibody titres and joint findings on musculoskeletal ultrasound scan in rheumatoid arthritis. Ann Rheum Dis 2013. [DOI: 10.1136/annrheumdis-2012-eular.332] [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: 11/03/2022]
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Stevens S, Moors M. [The fiscal position of medical specialists]. Ned Tijdschr Geneeskd 2013; 157:A6200. [PMID: 23945433] [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] [Subscribe] [Scholar Register] [Indexed: 06/02/2023]
Abstract
Independent medical specialists in the Netherlands are treated as entrepreneurs for tax purposes and therefore enjoy tax benefits. A change in the legal relationship between medical specialists and hospitals is foreseen in 2015. Independent medical specialists will then no longer be considered to be entrepreneurs. This could negatively affect their tax position. The Dutch government has adopted a policy aimed at controlling expenses arising from medical specialists' fees. According to this policy, the formation of regional practices or mega-practices of specialists will be discouraged. In contrast, the current fiscal legislation encourages medical specialists to incorporate their practice into regional practices or mega-practices or to become shareholders of their hospitals. It has been proposed that fiscal benefits be linked to certain aspects of entrepreneurship, such as investing in medical equipment or employing medical personnel.
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Affiliation(s)
- S Stevens
- PwC Belastingadviseurs, Specialistengroep Public Sector, Utrecht
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Stevens S, Kantarci K. Imaging markers offer promise: Dream enactment may predict your patient's future. Neurology 2012; 79:2296-7. [DOI: 10.1212/wnl.0b013e318278b6b7] [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: 11/15/2022] Open
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Cameron Smail R, Tetlow H, Mazzar Siddiqi S, Stevens S, McColgan P. A CASE OF TOXIC CYSTIC LEUKOENCEPHALOPATHY AFTER ANTI-PSYCHOTIC OVERDOSE. J Neurol Psychiatry 2012. [DOI: 10.1136/jnnp-2012-304200a.61] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
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Dvorak P, Stevens S, McQuaid M, Dawes S, Richmond A. MO-G-213AB-02: A Gated IMRT Study Based on Comparative 2D and 3D Dose Measurements. Med Phys 2012. [DOI: 10.1118/1.4735839] [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: 11/07/2022] Open
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Stevens S, Dvorak P, McQuaid M, Richmond A. EP-1459 A STUDY OF A GATED INTENSITY-MODULATED RADIOTHERAPY (IMRT) ESOPHAGUS CANCER CASE BASED ON 3D DOSE MEASUREMENTS. Radiother Oncol 2012. [DOI: 10.1016/s0167-8140(12)71792-9] [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: 10/28/2022]
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Ireland A, Korhonen M, Heinonen A, Suominen H, Baur C, Stevens S, Degens H, Rittweger J. Side-to-side differences in bone strength in master jumpers and sprinters. J Musculoskelet Neuronal Interact 2011; 11:298-305. [PMID: 22130138] [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] [Subscribe] [Scholar Register] [Indexed: 05/31/2023]
Abstract
INTRODUCTION This study evaluated side-to-side difference in tibial bone structure, calf muscle cross-sectional area (CSA) and hopping force in master athletes as a result of training for sports with different magnitudes of inter-leg loading difference. METHODS Tibial bone parameters (at 4%, 14%, 38% and 66% tibial length proximal to distal end), muscle CSA (at 66% tibial length) and hopping forces of both legs of 51 master athletes (conditioned jumpers, conditioned triple jumpers, unconditioned jumpers, hurdlers and sprinters) were examined using pQCT. In epiphyseal 4% slice bone CSA (Ar.tot), total BMC (vBMC.tot), trabecular BMC (vBMC.tb) cortical BMC (vBMC.ct), and trabecular BMD (vBMD.tb) were measured. In diaphyseal slices, Ar.tot, vBMC.ct, cortical density (vBMD.ct), cross-sectional moment of inertia (CSMI) and calf muscle CSA (MuscA) were examined. RESULTS In conditioned jumpers, side-to-side differences in favour of take-off leg were found in 4% slice in vBMC.tb (+4.1%) (P<0.05). A side-to-side difference was found in 66% slice vBMC.ct and CSMI (both P<0.05), with conditioned jumper (+2.8% and 6.6%) and triple jumper (+2.7% and 7.2%) values higher than other groups. CONCLUSION The results suggest that regular training in high-impact sports with uneven lower limb loading results in side-to-side differences in skeletal adaptation independent of age and gender, suggesting that high-impact exercise is effective in maintaining bone strength throughout human lifespan.
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Affiliation(s)
- A Ireland
- Institute for Biomedical Research into Human Movement and Health, Manchester Metropolitan University, Manchester, United Kingdom.
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Carruthers BM, van de Sande MI, De Meirleir KL, Klimas NG, Broderick G, Mitchell T, Staines D, Powles ACP, Speight N, Vallings R, Bateman L, Baumgarten-Austrheim B, Bell DS, Carlo-Stella N, Chia J, Darragh A, Jo D, Lewis D, Light AR, Marshall-Gradisnik S, Mena I, Mikovits JA, Miwa K, Murovska M, Pall ML, Stevens S. Myalgic encephalomyelitis: International Consensus Criteria. J Intern Med 2011; 270:327-38. [PMID: 21777306 PMCID: PMC3427890 DOI: 10.1111/j.1365-2796.2011.02428.x] [Citation(s) in RCA: 695] [Impact Index Per Article: 53.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
The label 'chronic fatigue syndrome' (CFS) has persisted for many years because of the lack of knowledge of the aetiological agents and the disease process. In view of more recent research and clinical experience that strongly point to widespread inflammation and multisystemic neuropathology, it is more appropriate and correct to use the term 'myalgic encephalomyelitis' (ME) because it indicates an underlying pathophysiology. It is also consistent with the neurological classification of ME in the World Health Organization's International Classification of Diseases (ICD G93.3). Consequently, an International Consensus Panel consisting of clinicians, researchers, teaching faculty and an independent patient advocate was formed with the purpose of developing criteria based on current knowledge. Thirteen countries and a wide range of specialties were represented. Collectively, members have approximately 400 years of both clinical and teaching experience, authored hundreds of peer-reviewed publications, diagnosed or treated approximately 50 000 patients with ME, and several members coauthored previous criteria. The expertise and experience of the panel members as well as PubMed and other medical sources were utilized in a progression of suggestions/drafts/reviews/revisions. The authors, free of any sponsoring organization, achieved 100% consensus through a Delphi-type process. The scope of this paper is limited to criteria of ME and their application. Accordingly, the criteria reflect the complex symptomatology. Operational notes enhance clarity and specificity by providing guidance in the expression and interpretation of symptoms. Clinical and research application guidelines promote optimal recognition of ME by primary physicians and other healthcare providers, improve the consistency of diagnoses in adult and paediatric patients internationally and facilitate clearer identification of patients for research studies.
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Affiliation(s)
- B M Carruthers
- Department of Physiology and Medicine, Vrije University of Brussels, Himmunitas Foundation, Brussels, Belgium.
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West G, Stevens S, Pun C, Pratt J. Video game playing enhances practical attentional skills. J Vis 2010. [DOI: 10.1167/8.6.471] [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] Open
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Balfour-Lynn IM, Field DJ, Gringras P, Hicks B, Jardine E, Jones RC, Magee AG, Primhak RA, Samuels MP, Shaw NJ, Stevens S, Sullivan C, Taylor JA, Wallis C. BTS guidelines for home oxygen in children. Thorax 2009; 64 Suppl 2:ii1-26. [DOI: 10.1136/thx.2009.116020] [Citation(s) in RCA: 65] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
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Torres R, Macdonald L, Croll SD, Reinhardt J, Dore A, Stevens S, Hylton DM, Rudge JS, Liu-Bryan R, Terkeltaub RA, Yancopoulos GD, Murphy AJ. Hyperalgesia, synovitis and multiple biomarkers of inflammation are suppressed by interleukin 1 inhibition in a novel animal model of gouty arthritis. Ann Rheum Dis 2009; 68:1602-8. [PMID: 19528034 DOI: 10.1136/ard.2009.109355] [Citation(s) in RCA: 113] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
Abstract
BACKGROUND Monosodium urate (MSU) and calcium pyrophosphate dihydrate (CPPD) crystal-induced interleukin 1 beta (IL1beta) release contributes to inflammation in subcutaneous air pouch and peritoneal models of acute gout and pseudogout. However, consequences of IL1 inhibition have not been explored in more clinically relevant models of crystal-induced arthritis. OBJECTIVE To develop a novel mouse model of acute gouty ankle arthritis and use it to assess the effects of genetic deletion of IL1 receptor type (IL1R1) and of exogenous mIL1 Trap (a high-affinity blocker of mouse IL1alpha and IL1beta) on pain, synovitis and systemic inflammatory biomarkers. METHODS MSU crystals were injected into the mouse ankle joint and pain and ankle swelling were measured over 4 days. The effects of IL1 inhibition were determined in this model, and in the comparator models of crystal-induced peritonitis and subcutaneous air pouch inflammation. RESULTS Both IL1R1-null mice and mice pretreated with mIL1 Trap showed reduced neutrophil influx in MSU and CPPD crystal-induced peritonitis and air pouch models (p<0.05). In the ankle joint model, both IL1R1 knockout mice and pretreatment with mIL1 Trap were associated with significant reductions in MSU crystal-induced elevations in hyperalgesia, inflammation, serum amyloid A and the levels of multiple inflammatory cytokines and chemokines (p<0.05). Additionally, it was found that administration of mIL1 Trap after MSU crystal injection reduced established hyperalgesia and ankle swelling. CONCLUSIONS IL1 inhibition both prevented and relieved pain and ankle joint inflammation in response to intra-articular MSU crystals in mice. Results suggested that IL1 Trap has the potential to both prevent and treat gouty arthritis.
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Affiliation(s)
- R Torres
- Regeneron Pharmaceuticals, 777 Old Saw Mill River Rd, Tarrytown, NY 10591, USA.
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Singh H, Kumasaka K, Stevens S, Snell C, VanNess JM. A Scoring System To Aid In The Interpretation Of Cardiopulmonary Test Results. Med Sci Sports Exerc 2009. [DOI: 10.1249/01.mss.0000355322.61578.e7] [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: 11/21/2022]
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Abstract
OBJECTIVE Studies in white people have shown that telomere length, a marker of biological ageing, is shorter in individuals with coronary artery disease (CAD). South Asian Indians have a high prevalence of CAD, especially premature CAD. We examined the association of telomere length with CAD in Indian subjects. DESIGN Case-control study. SETTING Mumbai, India. SUBJECTS 238 consecutive patients (aged 29-82 years), admitted to Cumballa Hill Hospital for coronary investigations or treatment and 238 control subjects (aged 30-87 years) from the same area without any clinical evidence of CAD. METHODS Mean leucocyte telomere length was measured using a polymerase chain reaction (PCR)-based assay and expressed as a ratio (T/S ratio) of the telomere signal to that of a control single copy gene. RESULTS T/S ratio was significantly lower in CAD cases compared with controls (cases 1.21 (95% CI 1.16 to 1.26); controls 1.33 (1.28 to 1.38); p = 0.0003), equivalent to approximately 166 base pairs. The difference remained significant after adjustment for other clinical characteristics (p = 0.002). There were trends towards longer telomeres in vegetarian subjects compared with subjects on a mixed diet (vegetarians 1.31 (1.25 to 1.38); mixed 1.25 (1.18 to 1.33); p = 0.088) and shorter telomeres in subjects with a positive family history (FH) for CAD (+ve FH 1.25 (1.18 to 1.32); -ve FH 1.31 (1.24 to 1.38); p = 0.094). CONCLUSION Subjects of Indian ethnicity with CAD have shorter telomeres than subjects without such a history. The finding provides further evidence that telomere biology is altered in subjects with CAD.
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Affiliation(s)
- M Mukherjee
- Cumballa Hill Hospital and Heart Institute, 93/95 August Kranti Marg, Mumbai 400036, India
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Whittaker A, Moore JS, Vasa-Nicotera M, Stevens S, Samani NJ. Evidence for genetic regulation of endothelial progenitor cells and their role as biological markers of atherosclerotic susceptibility. Eur Heart J 2008; 29:332-8. [DOI: 10.1093/eurheartj/ehm602] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
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Sandhu BS, Hackworth WA, Stevens S, Bouhaidar DS, Zfass AM, Sanyal AJ. Recurrent flares of pancreatitis predict development of exocrine insufficiency in chronic pancreatitis. Clin Gastroenterol Hepatol 2007; 5:1085-91; quiz 1007. [PMID: 17588823 DOI: 10.1016/j.cgh.2007.04.011] [Citation(s) in RCA: 14] [Impact Index Per Article: 0.8] [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: 01/05/2023]
Abstract
BACKGROUND & AIMS The natural history of specific morphologic stages of chronic pancreatitis (CP) is not well defined. The aim of this study was to determine if worsening morphologic stages of CP are associated with poorer clinical outcomes. METHODS A retrospective analysis of 159 subjects with CP was performed. The baseline stage of CP was categorized according to the Cambridge classification. Pain was categorized as type A (intermittent acute), B (continuous), or combined. Exocrine failure was defined by steatorrhea; endocrine failure was characterized as diabetes mellitus. Complications were defined clinically. RESULTS Pancreatic duct (PD) morphology was equivocal in 37.1%, minimal in 12.6%, moderate in 7.5%, and severe in 42.8% of the patients. Over a median follow-up period of 3.7 years, the risk of developing exocrine insufficiency and diabetes was 28% and 19%, respectively. Recurrent acute flares of pancreatitis predicted the development of exocrine insufficiency (P = .004). Severe PD morphology predicted the likelihood of having persistent pain (P = .008). Patients with concurrent type A and B pain and older age at diagnosis had a greater likelihood of having persistent pain (P = .021). The risk of developing bile duct stricture was higher in the advanced morphologic stages of CP (P = .005). CONCLUSIONS Recurrent flares of pancreatitis predispose to the development of exocrine insufficiency in CP. Patients with complex-type pain, older age at diagnosis, and advanced morphologic stage are more likely to have persistent pain. PD morphology does not correlate with the risk of developing exocrine failure and/or diabetes. Pain does not necessarily decrease or disappear with the onset of exocrine insufficiency and diabetes.
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Affiliation(s)
- Bimaljit S Sandhu
- Pancreatitis Center, Division of Gastroenterology, Hepatology & Nutrition, Virginia Commonwealth University Medical Center, Richmond, Virginia, USA
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Abstract
OBJECTIVES Despite the advances in pancreatic imaging, there continues to be a need to measure exocrine function to determine which patient requires enzyme supplementation. To evaluate the potential use of a rapid endoscopic test that can be conducted by nonacademic centers, we investigated whether concentration of trypsin in food-stimulated secretion is related to trypsin synthesis and secretion. METHODS Subjects include 22 chronic pancreatitis patients (10 mild, 5 moderate, and 7 severe radiological disease) and 11 healthy controls. During upper gastrointestinal endoscopy, pancreatic secretion was stimulated by a single 30-mL duodenal injection of an enteral diet, followed 5 minutes later by periampullary juice aspiration (endoscopic pancreatic function test [ePFT]). This was followed by a conventional 2-hour marker-perfusion diet-stimulated pancreatic trypsin secretion and synthesis study (2-hour PFT [2hPFT]). RESULTS Severity of radiological disease was associated with a progressive loss of enzyme secretion measured by the 2hPFT. The endoscopic PFT correlated positively with 2hPFT (r2 = 0.48; P < 0.0001) and an activity of less than 5% of the average normal had a 96% specificity and 75% sensitivity for the detection of pancreatic insufficiency as defined by a loss of greater than 90% of pancreatic secretion. CONCLUSIONS The diagnostic power of endoscopy may be enhanced by the collection of a pancreatic juice sample after enteral feed stimulation because measurement of the trypsin content will identify chronic pancreatitis patients who will be benefited by enzyme supplementation.
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Affiliation(s)
- Stephen J D O'Keefe
- Division of Gastroenterology, Hepatology and Nutrition, University of Pittsburgh, Pittsburgh, PA 15213, USA.
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Conner E, Brummet M, Bickel C, Bankova L, McGirt L, Meusel T, Stevens S, Bochner B, Beck L. The Effect of Etanercept on the Human Cutaneous Allergic Response. J Allergy Clin Immunol 2006. [DOI: 10.1016/j.jaci.2005.12.613] [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: 10/24/2022]
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Abstract
This paper describes an implementation project to incorporate an evidence-based, structured model of relapse prevention into routine clinical practice at the Community Mental Health Team in Reading, Berkshire. This project has currently reached the end of the pilot stage, which this paper reports in details. It is proposed that clinicians will adopt Smith's Self-Management Training Manual for individuals with psychosis as a clinical tool for working with patients who have schizophrenic-form disorders or bipolar affective disorders with psychosis. Effects of the proposed change are considered from the viewpoint of the clients and families/carers, the clinicians and the service. The process of transition and its impact on members of the multidisciplinary team is examined. It includes an audit of Care Programme Approach (CPA) forms and a staff survey, which give background information on the needs for improvement and staff development initiatives. A pilot study incorporating the structured relapse prevention work into the local community mental health team is also underway. The method of evaluation and dissemination to the wider team and service settings across the organizational boundaries is reviewed with implications for practice drawn. This paper aims to describe the background and development of this ongoing development project whilst focusing on the current pilot stage. Ongoing work will be carried out in addressing and reporting the outcomes of the full project in future papers.
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Affiliation(s)
- S Stevens
- Berkshire Healthcare NHS Trust, Reading CMHT, Reading RG30 4EJ, Berkshire, UK
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