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Patel SM, Berg DD, Bohula EA, Baird-Zars VM, Barsness GW, Chaudhry SP, Chonde MD, Cooper HA, Ginder C, Jentzer JC, Kontos MC, Miller PE, Newby LK, O'Brien CG, Park JG, Pierce MJ, Pisani BA, Potter BJ, Shah KS, Teuteberg JJ, Katz JN, van Diepen S, Morrow DA. Early Serial Assessment of Aggregate Vasoactive Support and Mortality in Cardiogenic Shock: Insights From the Critical Care Cardiology Trials Network Registry. Circ Heart Fail 2024; 17:e011736. [PMID: 38587438 DOI: 10.1161/circheartfailure.124.011736] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/22/2024] [Accepted: 03/19/2024] [Indexed: 04/09/2024]
Abstract
BACKGROUND Associations of early changes in vasoactive support with cardiogenic shock (CS) mortality remain incompletely defined. METHODS The Critical Care Cardiology Trials Network is a multicenter registry of cardiac intensive care units. Patients admitted with CS (2018-2023) had vasoactive dosing assessed at 4 and 24 hours from cardiac intensive care unit admission and quantified by the vasoactive-inotropic score (VIS). Prognostic associations of VIS at both time points, as well as change in VIS from 4 to 24 hours, were examined. Interaction testing was performed based on mechanical circulatory support status. RESULTS Among 3665 patients, 82% had a change in VIS <10, with 7% and 11% having a ≥10-point increase and decrease from 4 to 24 hours, respectively. The 4 and 24-hour VIS were each associated with cardiac intensive care unit mortality (13%-45% and 11%-73% for VIS <10 to ≥40, respectively; Ptrend <0.0001 for each). Stratifying by the 4-hour VIS, changes in VIS from 4 to 24 hours had a graded association with mortality, ranging from a 2- to >4-fold difference in mortality comparing those with a ≥10-point increase to ≥10-point decrease in VIS (Ptrend <0.0001). The change in VIS alone provided good discrimination of cardiac intensive care unit mortality (C-statistic, 0.72 [95% CI, 0.70-0.75]) and improved discrimination of the 24-hour Sequential Organ Failure Assessment score (0.72 [95% CI, 0.69-0.74] to 0.76 [95% CI, 0.74-0.78]) and the clinician-assessed Society for Cardiovascular Angiography and Interventions shock stage (0.72 [95% CI, 0.70-0.74] to 0.77 [95% CI, 0.75-0.79]). Although present in both groups, the mortality risk associated with VIS was attenuated in patients managed with versus without mechanical circulatory support (odds ratio per 10-point higher 24-hour VIS, 1.36 [95% CI, 1.23-1.49] versus 1.84 [95% CI, 1.69-2.01]; Pinteraction <0.0001). CONCLUSIONS Early changes in the magnitude of vasoactive support in CS are associated with a gradient of risk for mortality. These data suggest that early VIS trajectory may improve CS prognostication, with the potential to be leveraged for clinical decision-making and research applications in CS.
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Affiliation(s)
- Siddharth M Patel
- Levine Cardiac Intensive Care Unit, Cardiovascular Division, Department of Medicine, Brigham and Women's Hospital, Harvard Medical School, Boston, MA (S.M.P., D.D.B., E.A.B., V.M.B.-Z., C.G., J.-G.P., D.A.M.)
| | - David D Berg
- Levine Cardiac Intensive Care Unit, Cardiovascular Division, Department of Medicine, Brigham and Women's Hospital, Harvard Medical School, Boston, MA (S.M.P., D.D.B., E.A.B., V.M.B.-Z., C.G., J.-G.P., D.A.M.)
| | - Erin A Bohula
- Levine Cardiac Intensive Care Unit, Cardiovascular Division, Department of Medicine, Brigham and Women's Hospital, Harvard Medical School, Boston, MA (S.M.P., D.D.B., E.A.B., V.M.B.-Z., C.G., J.-G.P., D.A.M.)
| | - Vivian M Baird-Zars
- Levine Cardiac Intensive Care Unit, Cardiovascular Division, Department of Medicine, Brigham and Women's Hospital, Harvard Medical School, Boston, MA (S.M.P., D.D.B., E.A.B., V.M.B.-Z., C.G., J.-G.P., D.A.M.)
| | - Gregory W Barsness
- Department of Cardiovascular Medicine, Division of Pulmonary and Critical Care Medicine, Department of Internal Medicine, Mayo Clinic, Rochester, MN (G.W.B., J.C.J.)
| | | | - Meshe D Chonde
- Department of Cardiology, Smidt Heart Institute, Cedars-Sinai Medical Center, Los Angeles, CA (M.D.C.)
| | - Howard A Cooper
- Department of Cardiology, Westchester Medical Center, Valhalla, NY (H.A.C.)
| | - Curtis Ginder
- Levine Cardiac Intensive Care Unit, Cardiovascular Division, Department of Medicine, Brigham and Women's Hospital, Harvard Medical School, Boston, MA (S.M.P., D.D.B., E.A.B., V.M.B.-Z., C.G., J.-G.P., D.A.M.)
| | - Jacob C Jentzer
- Department of Cardiovascular Medicine, Division of Pulmonary and Critical Care Medicine, Department of Internal Medicine, Mayo Clinic, Rochester, MN (G.W.B., J.C.J.)
| | - Michael C Kontos
- Division of Cardiology, Department of Medicine, Virginia Commonwealth University, Richmond (M.C.K.)
| | - P Elliott Miller
- Section of Cardiovascular Medicine, Yale University, New Haven, CT (P.E.M.)
| | - L Kristin Newby
- Division of Cardiology and Duke Clinical Research Institute, Duke University School of Medicine, Durham, NC (L.K.N.)
| | - Connor G O'Brien
- Division of Cardiology, Department of Medicine, University of California San Francisco (C.G.O.B.)
| | - Jeong-Gun Park
- Levine Cardiac Intensive Care Unit, Cardiovascular Division, Department of Medicine, Brigham and Women's Hospital, Harvard Medical School, Boston, MA (S.M.P., D.D.B., E.A.B., V.M.B.-Z., C.G., J.-G.P., D.A.M.)
| | - Matthew J Pierce
- Department of Cardiology, Northwell Health, Zucker School of Medicine, New Hyde Park, NY (M.J.P.)
| | - Barbara A Pisani
- Section of Cardiovascular Medicine, Department of Internal Medicine, Wake Forest Baptist Medical Center, Winston-Salem, NC (B.A.P.)
| | - Brian J Potter
- Cardiology Service, Department of Medicine, Centre Hospitalier de l'Université de Montréal Research Center and Cardiovascular Center, Quebec, QC, Canada (B.J.P.)
| | - Kevin S Shah
- Division of Cardiology, Department of Medicine, University of Utah, Salt Lake City (K.S.S.)
| | - Jeffrey J Teuteberg
- Division of Cardiovascular Medicine, Stanford University School of Medicine, CA (J.J.T.)
| | - Jason N Katz
- Division of Cardiovascular Medicine, Department of Medicine, New York University School of Medicine, New York (J.N.K.)
| | - Sean van Diepen
- Department of Critical Care Medicine and Division of Cardiology, Department of Medicine, University of Alberta, Edmonton, AB, Canada (S.v.D.)
| | - David A Morrow
- Levine Cardiac Intensive Care Unit, Cardiovascular Division, Department of Medicine, Brigham and Women's Hospital, Harvard Medical School, Boston, MA (S.M.P., D.D.B., E.A.B., V.M.B.-Z., C.G., J.-G.P., D.A.M.)
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2
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Patel SM, Kang YM, Im K, Neuen BL, Anker SD, Bhatt DL, Butler J, Cherney DZI, Claggett BL, Fletcher RA, Herrington WG, Inzucchi SE, Jardine MJ, Mahaffey KW, McGuire DK, McMurray JJV, Neal B, Packer M, Perkovic V, Solomon SD, Staplin N, Vaduganathan M, Wanner C, Wheeler DC, Zannad F, Zhao Y, Heerspink HJL, Sabatine MS, Wiviott SD. Sodium Glucose Co-transporter 2 Inhibitors and Major Adverse Cardiovascular Outcomes: A SMART-C Collaborative Meta-Analysis. Circulation 2024. [PMID: 38583093 DOI: 10.1161/circulationaha.124.069568] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/07/2024] [Accepted: 03/30/2024] [Indexed: 04/08/2024]
Abstract
BACKGROUND Sodium glucose co-transporter 2 inhibitors (SGLT2i) consistently improve heart failure and kidney-related outcomes; however, effects on major adverse cardiovascular events (MACE) across different patient populations are less clear. METHODS This was a collaborative trial-level meta-analysis from the SGLT2i meta-analysis cardio-renal trialists consortium, which includes all phase 3, placebo-controlled, outcomes trials of SGLT2i across three patient populations (diabetes at high risk for atherosclerotic cardiovascular disease [ASCVD], heart failure [HF], or chronic kidney disease [CKD]). The outcomes of interest were MACE (composite of CV death, myocardial infarction [MI], or stroke), individual components of MACE (inclusive of fatal and non-fatal events), all-cause mortality, and death subtypes. Effect estimates for SGLT2i vs. placebo were meta-analyzed across trials and examined across key subgroups (established ASCVD, prior MI, diabetes, prior HF, albuminuria, CKD stages and risk groups). RESULTS A total of 78,607 patients across 11 trials were included: 42,568 (54.2%), 20,725 (26.4%), and 15,314 (19.5%) were included from trials of patients with diabetes at high risk for ASCVD, HF, or CKD, respectively. SGLT2i reduced the rate of MACE by 9% (HR 0.91 [95% CI 0.87-0.96], p<0.0001) with a consistent effect across all three patient populations (I2=0%) and across all key subgroups. This effect was primarily driven by a reduction in CV death (HR 0.86 [0.81-0.92], p<0.0001), with no significant effect for MI in the overall population (HR 0.95 [0.87-1.04], p=0.29), and no effect on stroke (HR 0.99 [0.91-1.07], p=0.77). The benefit for CV death was driven primarily by reductions in HF death and sudden cardiac death (HR 0.68 [0.46-1.02] and HR 0.86 [0.78-0.95], respectively) and was generally consistent across subgroups, with the possible exception of being more apparent in those with albuminuria (Pint=0.02). CONCLUSIONS SGLT2i reduce the risk of MACE across a broad range of patients irrespective of ASCVD, diabetes, kidney function or other major clinical characteristics at baseline. This effect is driven primarily by a reduction of CV death, particularly HF and sudden cardiac death, without a significant effect on MI in the overall population, and no effect on stroke. These data may help inform selection for SGLT2i therapies across the spectrum of cardiovascular-kidney-metabolic disease.
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Affiliation(s)
- Siddharth M Patel
- TIMI Study Group, Brigham and Women's Hospital and Harvard Medical School, Boston, MA; Cardiovascular Division, Department of Medicine, Brigham and Women's Hospital and Harvard Medical School, Boston, MA
| | - Yu Mi Kang
- TIMI Study Group, Brigham and Women's Hospital and Harvard Medical School, Boston, MA; Division of Endocrinology, Diabetes, and Hypertension, Department of Medicine, Brigham and Women's Hospital, Harvard Medical School, Boston, MA
| | - KyungAh Im
- TIMI Study Group, Brigham and Women's Hospital and Harvard Medical School, Boston, MA; Cardiovascular Division, Department of Medicine, Brigham and Women's Hospital and Harvard Medical School, Boston, MA
| | - Brendon L Neuen
- Cardiovascular Division, Department of Medicine, Brigham and Women's Hospital and Harvard Medical School, Boston, MA; The George Institute for Global Health, University of New South Wales, Sydney, New South Wales, Australia; Department of Renal Medicine, Royal North Shore Hospital, Sydney, Australia
| | - Stefan D Anker
- Berlin Institute of Health Center for Regenerative Therapies (BCRT); German Centre for Cardiovascular Research (DZHK) partner site Berlin; Charité Universitätsmedizin Berlin, Germany
| | - Deepak L Bhatt
- Mount Sinai Fuster Heart Hospital, Icahn School of Medicine at Mount Sinai, New York, NY
| | - Javed Butler
- Baylor Scott and White Research Institute, Dallas, TX; Department of Medicine, University of Mississippi School of Medicine, Jackson, MS
| | - David Z I Cherney
- Department of Medicine, Division of Nephrology, Toronto General Hospital, Ontario, Canada
| | - Brian L Claggett
- Cardiovascular Division, Department of Medicine, Brigham and Women's Hospital and Harvard Medical School, Boston, MA
| | - Robert A Fletcher
- The George Institute for Global Health, University of New South Wales, Sydney, New South Wales, Australia
| | - William G Herrington
- Renal Studies Group, Clinical Trial Service Unit and Epidemiological Studies Unit, Nuffield Department of Population Health, University of Oxford, Oxford, United Kingdom
| | | | - Meg J Jardine
- The George Institute for Global Health, University of New South Wales, Sydney, New South Wales, Australia
| | - Kenneth W Mahaffey
- Stanford Center for Clinical Research (SCCR), Department of Medicine, Stanford University School of Medicine, Stanford, CA
| | - Darren K McGuire
- University of Texas Southwestern Medical Center, Parkland Health, Dallas, TX
| | - John J V McMurray
- British Heart Foundation Cardiovascular Research Centre, University of Glasgow, Glasgow, United Kingdom
| | - Bruce Neal
- The George Institute for Global Health, University of New South Wales, Sydney, New South Wales, Australia
| | - Milton Packer
- Baylor University Medical Center, Dallas, TX and Imperial College, London United Kingdom
| | - Vlado Perkovic
- The George Institute for Global Health, University of New South Wales, Sydney, New South Wales, Australia
| | - Scott D Solomon
- Cardiovascular Division, Department of Medicine, Brigham and Women's Hospital and Harvard Medical School, Boston, MA
| | - Natalie Staplin
- Renal Studies Group, Clinical Trial Service Unit and Epidemiological Studies Unit, Nuffield Department of Population Health, University of Oxford, Oxford, United Kingdom
| | - Muthiah Vaduganathan
- Cardiovascular Division, Department of Medicine, Brigham and Women's Hospital and Harvard Medical School, Boston, MA
| | - Christoph Wanner
- Department of Clinical Research and Epidemiology, Comprehensive Heart Failure Center (CHFC), University Hospital, Würzburg, Germany
| | - David C Wheeler
- Department of Renal Medicine, University College London, London, United Kingdom
| | - Faiez Zannad
- Université de Lorraine, Inserm Centre d'Investigations Cliniques Plurithématique 1433, and CHRU, Nancy, France
| | | | - Hiddo J L Heerspink
- The George Institute for Global Health, University of New South Wales, Sydney, New South Wales, Australia; Department Clinical Pharmacy and Pharmacology, University of Groningen, University Medical Center Groningen, Groningen, Netherlands
| | - Marc S Sabatine
- TIMI Study Group, Brigham and Women's Hospital and Harvard Medical School, Boston, MA; Cardiovascular Division, Department of Medicine, Brigham and Women's Hospital and Harvard Medical School, Boston, MA
| | - Stephen D Wiviott
- TIMI Study Group, Brigham and Women's Hospital and Harvard Medical School, Boston, MA; Cardiovascular Division, Department of Medicine, Brigham and Women's Hospital and Harvard Medical School, Boston, MA
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3
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Patel SM, Ruff CT. Subclinical Atrial Fibrillation and Anticoagulation: Weighing the Absolute Risks and Benefits. Circulation 2024; 149:989-992. [PMID: 38527139 DOI: 10.1161/circulationaha.123.067919] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 03/27/2024]
Affiliation(s)
- Siddharth M Patel
- The TIMI (Thrombolysis in Myocardial Infarction) Study Group, Cardiovascular Division, Department of Medicine, Brigham and Women's Hospital and Harvard Medical School, Boston, MA
| | - Christian T Ruff
- The TIMI (Thrombolysis in Myocardial Infarction) Study Group, Cardiovascular Division, Department of Medicine, Brigham and Women's Hospital and Harvard Medical School, Boston, MA
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4
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Patel SM, Braunwald E, Steffel J, Boriani G, Palazzolo MG, Antman EM, Bohula EA, Carnicelli AP, Connolly SJ, Eikelboom JW, Gencer B, Granger CB, Morrow DA, Patel MR, Wallentin L, Ruff CT, Giugliano RP. Efficacy and Safety of Non-Vitamin-K Antagonist Oral Anticoagulants Versus Warfarin Across the Spectrum of Body Mass Index and Body Weight: An Individual Patient Data Meta-Analysis of 4 Randomized Clinical Trials of Patients With Atrial Fibrillation. Circulation 2024; 149:932-943. [PMID: 38264923 DOI: 10.1161/circulationaha.123.066279] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/30/2023] [Accepted: 12/20/2023] [Indexed: 01/25/2024]
Abstract
BACKGROUND The efficacy and safety of non-vitamin-K antagonist oral anticoagulants (NOACs) across the spectrum of body mass index (BMI) and body weight (BW) remain uncertain. METHODS We analyzed data from COMBINE AF (A Collaboration Between Multiple Institutions to Better Investigate Non-Vitamin K Antagonist Oral Anticoagulant Use in Atrial Fibrillation), which pooled patient-level data from the 4 pivotal randomized trials of NOAC versus warfarin in patients with atrial fibrillation. The primary efficacy and safety outcomes were stroke or systemic embolic events (stroke/SEE) and major bleeding, respectively; secondary outcomes were ischemic stroke/SEE, intracranial hemorrhage, death, and the net clinical outcome (stroke/SEE, major bleeding, or death). Each outcome was examined across BMI and BW. Because few patients had a BMI <18.5 kg/m2 (n=598), the primary analyses were restricted to those with a BMI ≥18.5 kg/m2. RESULTS Among 58 464 patients, the median BMI was 28.3 (interquartile range, 25.2-32.2) kg/m2, and the median BW was 81.0 (interquartile range, 70.0-94.3) kg. The event probability of stroke/SEE was lower at a higher BMI irrespective of treatment, whereas the probability of major bleeding was lower at a higher BMI with warfarin but relatively unchanged across BMI with NOACs. NOACs reduced stroke/SEE overall (adjusted hazard ratio [HRadj], 0.80 [95% CI, 0.73-0.88]; P<0.001), with a generally consistent effect across BMI (Ptrend across HRs, 0.48). NOACs also reduced major bleeding overall (HRadj, 0.88 [95% CI, 0.82-0.94]; P<0.001), but with attenuation of the benefit at a higher BMI (trend test across BMI [Ptrend], 0.003). The overall treatment effects of NOACs versus warfarin for secondary outcomes were consistent across BMI, with the exception of the net clinical outcome and death. While these outcomes were overall reduced with NOACs (net clinical outcome, HRadj, 0.91 [95% CI, 0.87-0.95]; P<0.001; death, HRadj, 0.91 [95% CI, 0.86-0.97]; P=0.003), these benefits were attenuated at higher BMI (Ptrend, 0.001 and 0.08, respectively). All findings were qualitatively similar when analyzed across BW. CONCLUSIONS The treatment effect of NOACs versus warfarin in atrial fibrillation is generally consistent for stroke/SEE across the spectrum of BMI and BW, whereas the reduction in major bleeding is attenuated in those with higher BMI or BW. Death and the net clinical outcome are overall reduced with NOACs over warfarin, although there remain uncertainties for these outcomes at a very high BMI and BW.
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Affiliation(s)
- Siddharth M Patel
- Cardiovascular Division, Department of Medicine, Brigham and Women's Hospital and Harvard Medical School, Boston, MA (S.M.P., E.B., M.G.P., E.M.A., E.A.B., D.A.M., C.T.R., R.P.G.)
| | - Eugene Braunwald
- Cardiovascular Division, Department of Medicine, Brigham and Women's Hospital and Harvard Medical School, Boston, MA (S.M.P., E.B., M.G.P., E.M.A., E.A.B., D.A.M., C.T.R., R.P.G.)
| | - Jan Steffel
- Hirslanden Clinic, Zurich, Switzerland and University of Zurich, Switzerland (J.S.)
| | - Giuseppe Boriani
- Cardiology Division, Department of Biomedical, Metabolic and Neural Sciences, University of Modena and Reggio Emilia, Policlinico di Modena, Italy (G.B.)
| | - Michael G Palazzolo
- Cardiovascular Division, Department of Medicine, Brigham and Women's Hospital and Harvard Medical School, Boston, MA (S.M.P., E.B., M.G.P., E.M.A., E.A.B., D.A.M., C.T.R., R.P.G.)
| | - Elliott M Antman
- Cardiovascular Division, Department of Medicine, Brigham and Women's Hospital and Harvard Medical School, Boston, MA (S.M.P., E.B., M.G.P., E.M.A., E.A.B., D.A.M., C.T.R., R.P.G.)
| | - Erin A Bohula
- Cardiovascular Division, Department of Medicine, Brigham and Women's Hospital and Harvard Medical School, Boston, MA (S.M.P., E.B., M.G.P., E.M.A., E.A.B., D.A.M., C.T.R., R.P.G.)
| | - Anthony P Carnicelli
- Cardiology Division, Department of Internal Medicine, Medical University of South Carolina, Charleston (A.P.C.)
| | - Stuart J Connolly
- Department of Medicine, McMaster University, Hamilton, Canada (S.J.C., J.W.E.)
| | - John W Eikelboom
- Department of Medicine, McMaster University, Hamilton, Canada (S.J.C., J.W.E.)
| | - Baris Gencer
- Division of Cardiology, Geneva University Hospitals, Switzerland (B.G.)
- University of Bern Institute of Primary Health Care (BIHAM), Switzerland (B.G.)
| | - Christopher B Granger
- Duke Clinical Research Institute, Division of Cardiology, Duke University, Durham, NC (C.B.G., M.R.P.)
| | - David A Morrow
- Cardiovascular Division, Department of Medicine, Brigham and Women's Hospital and Harvard Medical School, Boston, MA (S.M.P., E.B., M.G.P., E.M.A., E.A.B., D.A.M., C.T.R., R.P.G.)
| | - Manesh R Patel
- Duke Clinical Research Institute, Division of Cardiology, Duke University, Durham, NC (C.B.G., M.R.P.)
| | - Lars Wallentin
- Uppsala Clinical Research Center and Department of Medical Sciences, Uppsala University, Sweden (L.W.)
| | - Christian T Ruff
- Cardiovascular Division, Department of Medicine, Brigham and Women's Hospital and Harvard Medical School, Boston, MA (S.M.P., E.B., M.G.P., E.M.A., E.A.B., D.A.M., C.T.R., R.P.G.)
| | - Robert P Giugliano
- Cardiovascular Division, Department of Medicine, Brigham and Women's Hospital and Harvard Medical School, Boston, MA (S.M.P., E.B., M.G.P., E.M.A., E.A.B., D.A.M., C.T.R., R.P.G.)
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5
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Patel SM, Morrow DA, Bellavia A, Berg DD, Bhatt DL, Jarolim P, Leiter LA, McGuire DK, Raz I, Steg PG, Wilding JPH, Sabatine MS, Wiviott SD, Braunwald E, Scirica BM, Bohula EA. Natriuretic peptides, body mass index and heart failure risk: Pooled analyses of SAVOR-TIMI 53, DECLARE-TIMI 58 and CAMELLIA-TIMI 61. Eur J Heart Fail 2024; 26:260-269. [PMID: 38131261 DOI: 10.1002/ejhf.3118] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/01/2023] [Revised: 11/09/2023] [Accepted: 12/19/2023] [Indexed: 12/23/2023] Open
Abstract
AIM N-terminal pro-B-type natriuretic peptide (NT-proBNP) concentrations are lower in patients with obesity. The interaction between body mass index (BMI) and NT-proBNP with respect to heart failure risk remains incompletely defined. METHODS AND RESULTS Data were pooled across three randomized clinical trials enrolling predominantly patients who were overweight or obese with established cardiometabolic disease: SAVOR-TIMI 53, DECLARE-TIMI 58 and CAMELLIA-TIMI 61. Hospitalization for heart failure (HHF) was examined across strata of baseline BMI and NT-proBNP. The effect of dapagliflozin versus placebo was assessed for a treatment interaction across BMI categories in patients with or without an elevated baseline NT-proBNP (≥125 pg/ml). Among 24 455 patients, the median NT-proBNP was 96 (interquartile range [IQR]: 43-225) pg/ml and the median BMI was 33 (IQR 29-37) kg/m2, with 68% of patients having a BMI ≥30 kg/m2. There was a significant inverse association between NT-proBNP and BMI which persisted after adjustment for all clinical variables (p < 0.001). Within any range of NT-proBNP, those at higher BMI had higher risk of HHF at 2 years (comparing BMI <30 vs. ≥40 kg/m2 for NT-proBNP ranges of <125, 125-<450 and ≥450 pg/ml: 0.0% vs. 0.6%, 1.3% vs. 4.0%, and 8.1% vs. 13.8%, respectively), which persisted after multivariable adjustment (adjusted hazard ratio [HRadj] 7.47, 95% confidence interval [CI] 3.16-17.66, HRadj 3.22 [95% CI 2.13-4.86], and HRadj 1.87 [95% CI 1.35-2.60], respectively). In DECLARE-TIMI 58, dapagliflozin versus placebo consistently reduced HHF across BMI categories in those with an elevated NT-proBNP (p-trend for HR across BMI = 0.60), with a pattern of greater absolute risk reduction (ARR) at higher BMI (ARR for BMI <30 to ≥40 kg/m2: 2.2% to 4.7%; p-trend = 0.059). CONCLUSIONS The risk of HHF varies across BMI categories for any given range of circulating NT-proBNP. These findings showcase the importance of considering BMI when applying NT-proBNP for heart failure risk stratification, particularly for patients with low-level elevations in NT-proBNP (125-<450 pg/ml) where there appears to be a clinically meaningful absolute and relative risk gradient.
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Affiliation(s)
- Siddharth M Patel
- TIMI Study Group, Cardiovascular Division, Department of Medicine, Brigham and Women's Hospital, Harvard Medical School, Boston, MA, USA
| | - David A Morrow
- TIMI Study Group, Cardiovascular Division, Department of Medicine, Brigham and Women's Hospital, Harvard Medical School, Boston, MA, USA
| | - Andrea Bellavia
- TIMI Study Group, Cardiovascular Division, Department of Medicine, Brigham and Women's Hospital, Harvard Medical School, Boston, MA, USA
| | - David D Berg
- TIMI Study Group, Cardiovascular Division, Department of Medicine, Brigham and Women's Hospital, Harvard Medical School, Boston, MA, USA
| | - Deepak L Bhatt
- Mount Sinai Heart, Icahn School of Medicine at Mount Sinai Health System, New York, NY, USA
| | - Petr Jarolim
- Department of Pathology, Brigham and Women's Hospital, Harvard Medical School, Boston, MA, USA
| | - Lawrence A Leiter
- Li Ka Shing Knowledge Institute, St Michael's Hospital, University of Toronto, Toronto, ON, Canada
| | - Darren K McGuire
- Division of Cardiology, Department of Internal Medicine, University of Texas Southwestern Medical Center, Dallas, TX, USA
- Parkland Health and Hospital System, Dallas, TX, USA
| | - Itamar Raz
- Diabetes Unit, Department of Endocrinology and Metabolism, Hadassah Medical Center, Faculty of Medicine, Hebrew University of Jerusalem, Jerusalem, Israel
- Faculty of Medicine, Hebrew University of Jerusalem, Jerusalem, Israel
| | - P Gabriel Steg
- Université Paris Cité, INSERM U-1148, Hôpital Bichat, Assistance Publique-Hôpitaux de Paris, Paris, France
- FACT (French Alliance for Cardiovascular Trials), Paris, France
| | - John P H Wilding
- Department of Cardiovascular and Metabolic Medicine, University of Liverpool, Liverpool, UK
| | - Marc S Sabatine
- TIMI Study Group, Cardiovascular Division, Department of Medicine, Brigham and Women's Hospital, Harvard Medical School, Boston, MA, USA
| | - Stephen D Wiviott
- TIMI Study Group, Cardiovascular Division, Department of Medicine, Brigham and Women's Hospital, Harvard Medical School, Boston, MA, USA
| | - Eugene Braunwald
- TIMI Study Group, Cardiovascular Division, Department of Medicine, Brigham and Women's Hospital, Harvard Medical School, Boston, MA, USA
| | - Benjamin M Scirica
- TIMI Study Group, Cardiovascular Division, Department of Medicine, Brigham and Women's Hospital, Harvard Medical School, Boston, MA, USA
| | - Erin A Bohula
- TIMI Study Group, Cardiovascular Division, Department of Medicine, Brigham and Women's Hospital, Harvard Medical School, Boston, MA, USA
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Patel SM, Bonaca MP, Morrow DA, Palazzolo MG, Jarolim P, Steg PG, Bhatt DL, Storey RF, Sabatine MS, O’Donoghue ML. Lipoprotein(a) and Benefit of Antiplatelet Therapy: Insights from the PEGASUS-TIMI 54 Trial. JACC Adv 2023; 2:100675. [PMID: 38106527 PMCID: PMC10723808 DOI: 10.1016/j.jacadv.2023.100675] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/19/2023]
Affiliation(s)
- Siddharth M. Patel
- TIMI Study Group, Cardiovascular Division, Department of Medicine, Brigham and Women’s Hospital and Harvard Medical School, Boston, MA
| | | | - David A. Morrow
- TIMI Study Group, Cardiovascular Division, Department of Medicine, Brigham and Women’s Hospital and Harvard Medical School, Boston, MA
| | - Michael G. Palazzolo
- TIMI Study Group, Cardiovascular Division, Department of Medicine, Brigham and Women’s Hospital and Harvard Medical School, Boston, MA
| | - Petr Jarolim
- Department of Pathology, Brigham and Women’s Hospital, Harvard Medical School, Boston, MA
| | - Philippe Gabriel Steg
- Université Paris Cité, INSERM U-1148, Hôpital Bichat, Assistance Publique-Hôpitaux de Paris, Paris, France and FACT (French Alliance for Cardiovascular Trials), Paris, France
| | - Deepak L. Bhatt
- Mount Sinai Heart, Icahn School of Medicine at Mount Sinai Health System, New York, NY, USA
| | - Robert F. Storey
- Department of Infection, Immunity and Cardiovascular Disease, University of Sheffield, Sheffield, United Kingdom
| | - Marc S. Sabatine
- TIMI Study Group, Cardiovascular Division, Department of Medicine, Brigham and Women’s Hospital and Harvard Medical School, Boston, MA
| | - Michelle L. O’Donoghue
- TIMI Study Group, Cardiovascular Division, Department of Medicine, Brigham and Women’s Hospital and Harvard Medical School, Boston, MA
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Berg DD, Kaur G, Bohula EA, Baird-Zars VM, Alviar CL, Barnett CF, Barsness GW, Burke JA, Chaudhry SP, Chonde M, Cooper HA, Daniels LB, Dodson MW, Gerber DA, Ghafghazi S, Gidwani UK, Goldfarb MJ, Guo J, Hillerson D, Kenigsberg BB, Kochar A, Kontos MC, Kwon Y, Lopes MS, Loriaux DB, Miller PE, O’Brien CG, Papolos AI, Patel SM, Pisani BA, Potter BJ, Prasad R, Roswell RO, Shah KS, Sinha SS, Smith TD, Solomon MA, Teuteberg JJ, Thompson AD, Zakaria S, Katz JN, van Diepen S, Morrow DA. Prognostic significance of haemodynamic parameters in patients with cardiogenic shock. Eur Heart J Acute Cardiovasc Care 2023; 12:651-660. [PMID: 37640029 PMCID: PMC10599641 DOI: 10.1093/ehjacc/zuad095] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/10/2023] [Revised: 07/17/2023] [Accepted: 08/06/2023] [Indexed: 08/31/2023]
Abstract
AIMS Invasive haemodynamic assessment with a pulmonary artery catheter is often used to guide the management of patients with cardiogenic shock (CS) and may provide important prognostic information. We aimed to assess prognostic associations and relationships to end-organ dysfunction of presenting haemodynamic parameters in CS. METHODS AND RESULTS The Critical Care Cardiology Trials Network is an investigator-initiated multicenter registry of cardiac intensive care units (CICUs) in North America coordinated by the TIMI Study Group. Patients with CS (2018-2022) who underwent invasive haemodynamic assessment within 24 h of CICU admission were included. Associations of haemodynamic parameters with in-hospital mortality were assessed using logistic regression, and associations with presenting serum lactate were assessed using least squares means regression. Sensitivity analyses were performed excluding patients on temporary mechanical circulatory support and adjusted for vasoactive-inotropic score. Among the 3603 admissions with CS, 1473 had haemodynamic data collected within 24 h of CICU admission. The median cardiac index was 1.9 (25th-75th percentile, 1.6-2.4) L/min/m2 and mean arterial pressure (MAP) was 74 (66-86) mmHg. Parameters associated with mortality included low MAP, low systolic blood pressure, low systemic vascular resistance, elevated right atrial pressure (RAP), elevated RAP/pulmonary capillary wedge pressure ratio, and low pulmonary artery pulsatility index. These associations were generally consistent when controlling for the intensity of background pharmacologic and mechanical haemodynamic support. These parameters were also associated with higher presenting serum lactate. CONCLUSION In a contemporary CS population, presenting haemodynamic parameters reflecting decreased systemic arterial tone and right ventricular dysfunction are associated with adverse outcomes and systemic hypoperfusion.
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Affiliation(s)
- David D Berg
- Levine Cardiac Intensive Care Unit, Cardiovascular Division, Department of Medicine, Brigham and Women’s Hospital, Harvard Medical School, 60 Fenwood Road, Suite 7022, Boston, MA 02115, USA
| | - Gurleen Kaur
- Department of Medicine, Brigham and Women’s Hospital, Harvard Medical School, Boston, MA, USA
| | - Erin A Bohula
- Levine Cardiac Intensive Care Unit, Cardiovascular Division, Department of Medicine, Brigham and Women’s Hospital, Harvard Medical School, 60 Fenwood Road, Suite 7022, Boston, MA 02115, USA
| | - Vivian M Baird-Zars
- Levine Cardiac Intensive Care Unit, Cardiovascular Division, Department of Medicine, Brigham and Women’s Hospital, Harvard Medical School, 60 Fenwood Road, Suite 7022, Boston, MA 02115, USA
| | - Carlos L Alviar
- Leon H Charney Division of Cardiology, Bellevue Hospital Center, New York University School of Medicine, New York, NY, USA
| | - Christopher F Barnett
- Division of Cardiology, Department of Medicine, University of California San Francisco, San Francisco, CA, USA
| | | | - James A Burke
- Division of Cardiology, Lehigh Valley Heart Network, Allentown, PA, USA
| | | | - Meshe Chonde
- Department of Cardiology, Smidt Heart Institute, Cedars-Sinai Medical Center, Los Angeles, CA, USA
| | - Howard A Cooper
- Westchester Medical Center, New York Medical College, Valhalla, NY, USA
| | - Lori B Daniels
- Division of Cardiovascular Medicine, Department of Medicine, University of California San Diego, La Jolla, CA, USA
| | - Mark W Dodson
- Department of Pulmonary and Critical Care Medicine, Intermountain Medical Center, Murray, UT, USA
| | - Daniel A Gerber
- Division of Cardiovascular Medicine, Stanford University School of Medicine, Stanford, CA, USA
| | - Shahab Ghafghazi
- Cardiovascular Medicine, University of Louisville, Louisville, KY, USA
| | - Umesh K Gidwani
- Division of Cardiology, Zena and Michael A. Wiener Cardiovascular Institute, Icahn School of Medicine at Mount Sinai, New York, NY, USA
| | - Michael J Goldfarb
- Division of Cardiology, Jewish General Hospital, McGill University, Montreal, QC, Canada
| | - Jianping Guo
- Levine Cardiac Intensive Care Unit, Cardiovascular Division, Department of Medicine, Brigham and Women’s Hospital, Harvard Medical School, 60 Fenwood Road, Suite 7022, Boston, MA 02115, USA
| | - Dustin Hillerson
- Department of Medicine, Division of Cardiovascular Medicine, University of Wisconsin School of Medicine and Public Health, Madison, WI, USA
| | - Benjamin B Kenigsberg
- Departments of Cardiology and Critical Care, MedStar Washington Hospital Center, Washington, DC, USA
| | - Ajar Kochar
- Levine Cardiac Intensive Care Unit, Cardiovascular Division, Department of Medicine, Brigham and Women’s Hospital, Harvard Medical School, 60 Fenwood Road, Suite 7022, Boston, MA 02115, USA
| | - Michael C Kontos
- Division of Cardiology, Department of Medicine, Virginia Commonwealth University, Richmond, VA, USA
| | - Younghoon Kwon
- Division of Cardiology, University of Washington, Seattle, WA, USA
| | - Mathew S Lopes
- Levine Cardiac Intensive Care Unit, Cardiovascular Division, Department of Medicine, Brigham and Women’s Hospital, Harvard Medical School, 60 Fenwood Road, Suite 7022, Boston, MA 02115, USA
| | - Daniel B Loriaux
- Division of Cardiology, Department of Medicine, Duke University, Durham, NC, USA
| | - P Elliott Miller
- Section of Cardiovascular Medicine, Yale University, New Haven, CT, USA
| | - Connor G O’Brien
- Division of Cardiology, Department of Medicine, University of California San Francisco, San Francisco, CA, USA
| | - Alexander I Papolos
- Departments of Cardiology and Critical Care, MedStar Washington Hospital Center, Washington, DC, USA
| | - Siddharth M Patel
- Levine Cardiac Intensive Care Unit, Cardiovascular Division, Department of Medicine, Brigham and Women’s Hospital, Harvard Medical School, 60 Fenwood Road, Suite 7022, Boston, MA 02115, USA
| | - Barbara A Pisani
- Section of Cardiovascular Medicine, Department of Internal Medicine, Wake Forest Baptist Medical Center, Winston-Salem, NC, USA
| | - Brian J Potter
- Cardiology Service, Department of Medicine, Centre Hospitalier de l'Université de Montréal (CHUM) Research Center and Cardiovascular Center, Montreal, QC, Canada
| | - Rajnish Prasad
- Division of Cardiology, Wellstar Health System, Marietta, GA, USA
| | - Robert O Roswell
- Division of Cardiology, Lenox Hill Hospital, Northwell Health, Zucker School of Medicine, New York, NY, USA
| | - Kevin S Shah
- Division of Cardiology, Department of Medicine, University of Utah, Salt Lake City, UT, USA
| | - Shashank S Sinha
- Inova Heart and Vascular Institute, Inova Fairfax Medical Center, Falls Church, VA, USA
| | - Timothy D Smith
- Lindner Center for Research and Education, The Christ Hospital, Cincinnati, OH, USA
| | - Michael A Solomon
- Critical Care Medicine Department, National Institutes of Health Clinical Center and Cardiovascular Branch, National Heart, Lung, and Blood Institute of the National Institutes of Health, Bethesda, MD, USA
| | - Jeffrey J Teuteberg
- Division of Cardiovascular Medicine, Stanford University School of Medicine, Stanford, CA, USA
| | - Andrea D Thompson
- Division of Cardiovascular Medicine, Department of Internal Medicine, University of Michigan, Ann Arbor, MI, USA
| | - Sammy Zakaria
- Division of Cardiology, Department of Medicine, Johns Hopkins University School of Medicine, Baltimore, MD, USA
| | - Jason N Katz
- Division of Cardiology, Department of Medicine, Duke University, Durham, NC, USA
| | - Sean van Diepen
- Department of Critical Care Medicine and Division of Cardiology, Department of Medicine, University of Alberta, Edmonton, Alberta, Canada
| | - David A Morrow
- Levine Cardiac Intensive Care Unit, Cardiovascular Division, Department of Medicine, Brigham and Women’s Hospital, Harvard Medical School, 60 Fenwood Road, Suite 7022, Boston, MA 02115, USA
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Patel SM, Berg DD, Bohula EA, Baird-Zars VM, Barnett CF, Barsness GW, Chaudhry SP, Daniels LB, van Diepen S, Ghafghazi S, Goldfarb MJ, Jentzer JC, Katz JN, Kenigsberg BB, Lawler PR, Miller PE, Papolos AI, Park JG, Potter BJ, Prasad R, Singam NSV, Sinha SS, Solomon MA, Teuteberg JJ, Morrow DA. Clinician and Algorithmic Application of the 2019 and 2022 Society of Cardiovascular Angiography and Intervention Shock Stages in the Critical Care Cardiology Trials Network Registry. Circ Heart Fail 2023; 16:e009714. [PMID: 36458542 PMCID: PMC9851990 DOI: 10.1161/circheartfailure.122.009714] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/10/2022] [Accepted: 09/20/2022] [Indexed: 12/04/2022]
Abstract
BACKGROUND Algorithmic application of the 2019 Society of Cardiovascular Angiography and Intervention (SCAI) shock stages effectively stratifies mortality risk for patients with cardiogenic shock. However, clinician assessment of SCAI staging may differ. Moreover, the implications of the 2022 SCAI criteria update remain incompletely defined. METHODS The Critical Care Cardiology Trials Network is a multicenter registry of cardiac intensive care units (CICUs). Between 2019 and 2021, participating centers (n=32) contributed at least a 2-month snapshot of consecutive medical CICU admissions. In-hospital mortality was assessed across 3 separate staging methods: clinician assessment, Critical Care Cardiology Trials Network algorithmic application of the 2019 SCAI criteria, and a revision of the Critical Care Cardiology Trials Network application using the 2022 SCAI criteria. RESULTS Of 9612 admissions, 1340 (13.9%) presented with cardiogenic shock with in-hospital mortality of 35.2%. Both clinician and algorithm-based staging using the 2019 SCAI criteria identified a stepwise gradient of mortality risk (stage C-E: 19.0% to 83.7% and 14.6% to 52.2%, respectively; Ptrend<0.001 for each). Clinician assignment of SCAI stages identified higher risk patients compared with algorithm-based assignment (stage D: 49.9% versus 29.3%; stage E: 83.7% versus 52.2%). Algorithmic application of the 2022 SCAI criteria, with incorporation of the vasoactive-inotropic score, more closely approximated clinician staging (mortality for stage C-E: 21.9% to 70.5%; Ptrend<0.001). CONCLUSIONS Both clinician and algorithm-based application of the 2019 SCAI stages identify a stepwise gradient of mortality risk, although clinician-staging may better allocate higher risk patients into advanced SCAI stages. Updated algorithmic staging using the 2022 SCAI criteria and vasoactive-inotropic score further refines risk stratification.
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Affiliation(s)
- Siddharth M. Patel
- Levine Cardiac Intensive Care Unit, TIMI Study Group, Cardiovascular Division, Department of Medicine, Brigham and Women’s Hospital, Harvard Medical School, Boston, Massachusetts, USA
| | - David D. Berg
- Levine Cardiac Intensive Care Unit, TIMI Study Group, Cardiovascular Division, Department of Medicine, Brigham and Women’s Hospital, Harvard Medical School, Boston, Massachusetts, USA
| | - Erin A. Bohula
- Levine Cardiac Intensive Care Unit, TIMI Study Group, Cardiovascular Division, Department of Medicine, Brigham and Women’s Hospital, Harvard Medical School, Boston, Massachusetts, USA
| | - Vivian M. Baird-Zars
- Levine Cardiac Intensive Care Unit, TIMI Study Group, Cardiovascular Division, Department of Medicine, Brigham and Women’s Hospital, Harvard Medical School, Boston, Massachusetts, USA
| | - Christopher F. Barnett
- Division of Cardiology, Department of Medicine, University of California San Francisco, San Francisco, California, USA
| | - Gregory W. Barsness
- Department of Cardiovascular Medicine, Mayo Clinic, Rochester, Minnesota, USA
| | | | - Lori B. Daniels
- Division of Cardiovascular Medicine, Department of Medicine, University of California San Diego, La Jolla, California, USA
| | - Sean van Diepen
- Department of Critical Care Medicine and Division of Cardiology, Department of Medicine, University of Alberta, Edmonton, Alberta, Canada
| | - Shahab Ghafghazi
- Cardiovascular Medicine, University of Louisville, Louisville, Kentucky, USA
| | | | - Jacob C. Jentzer
- Department of Cardiovascular Medicine, Mayo Clinic, Rochester, Minnesota, USA
| | - Jason N. Katz
- Division of Cardiology, Department of Medicine, Duke University, Durham, North Carolina, USA
| | - Benjamin B. Kenigsberg
- Departments of Cardiology and Critical Care, MedStar Washington Hospital Center, Washington, DC, USA
| | - Patrick R. Lawler
- Peter Munk Cardiac Centre at Toronto General Hospital, Division of Cardiology and Interdepartmental Division of Critical Care Medicine, University of Toronto, Toronto, Ontario, Canada
| | - P. Elliot Miller
- Section of Cardiovascular Medicine, Department of Internal Medicine, Yale University School of Medicine, New Haven, Connecticut, USA
| | - Alexander I. Papolos
- Departments of Cardiology and Critical Care, MedStar Washington Hospital Center, Washington, DC, USA
| | - Jeong-Gun Park
- Levine Cardiac Intensive Care Unit, TIMI Study Group, Cardiovascular Division, Department of Medicine, Brigham and Women’s Hospital, Harvard Medical School, Boston, Massachusetts, USA
| | - Brian J. Potter
- Centre Hospitalier de l’Université de Montréal (CHUM) Research Center and Cardiovascular Center, Montreal, QC, Canada
| | | | - N. Sarma V. Singam
- Department of Cardiovascular Medicine, Mayo Clinic, Rochester, Minnesota, USA
| | - Shashank S. Sinha
- Inova Heart and Vascular Institute, Inova Fairfax Medical Center, Falls Church, Virginia, USA
| | - Michael A. Solomon
- Critical Care Medicine Department, National Institutes of Health Clinical Center and Cardiovascular Branch, National Heart, Lung, and Blood Institute of the National Institutes of Health, Bethesda, Maryland, USA
| | - Jeffrey J. Teuteberg
- Division of Cardiovascular Medicine, Department of Medicine, Stanford University, Stanford, California, USA
| | - David A. Morrow
- Levine Cardiac Intensive Care Unit, TIMI Study Group, Cardiovascular Division, Department of Medicine, Brigham and Women’s Hospital, Harvard Medical School, Boston, Massachusetts, USA
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Patel SM, Qamar A, Giugliano RP, Jarolim P, Marston NA, Park JG, Blazing MA, Cannon CP, Braunwald E, Morrow DA. Association of Serial High-Sensitivity Cardiac Troponin T With Subsequent Cardiovascular Events in Patients Stabilized After Acute Coronary Syndrome: A Secondary Analysis From IMPROVE-IT. JAMA Cardiol 2022; 7:1199-1206. [PMID: 36260325 PMCID: PMC9582963 DOI: 10.1001/jamacardio.2022.3627] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/13/2022] [Accepted: 08/30/2022] [Indexed: 01/13/2023]
Abstract
Importance Studies have demonstrated an association between single measures of high-sensitivity troponin (hsTn) and future cardiovascular events in patients with chronic coronary syndromes. However, limited data exist regarding the association between changes in serial values of hsTn and subsequent cardiovascular events in this patient population. Objective To evaluate the association between changes in high-sensitivity troponin T (hsTnT) and subsequent cardiovascular events in patients stabilized after acute coronary syndrome (ACS). Design, Setting, and Participants This is a secondary analysis from the Improved Reduction of Outcomes: Vytorin Efficacy International Trial (IMPROVE-IT), a randomized clinical trial of ezetimibe vs placebo on a background of simvastatin in 18 144 patients hospitalized for an ACS across 1147 sites in 39 countries. The current biomarker substudy includes the 6035 participants consenting to the biomarker substudy with available hsTnT at months 1 and 4. Data were collected from October 26, 2005, through July 8, 2010, with the database locked October 21, 2014. Data were analyzed from February 28, 2021, through August 14, 2022. Main Outcomes and Measures The outcomes of interest were cardiovascular death, myocardial infarction (MI), stroke, or hospitalization for heart failure (HHF). Associations of absolute and relative changes in hsTnT between month 1 and month 4 as a function of the starting month 1 hsTnT and the composite outcome were examined using landmark analyses. Results Of 6035 patients in this analysis (median [IQR] age, 64 [57-71]), 1486 (24.6%) were female; 361 (6.0%) were Asian; 121 were (2.0%) Black; 252 (4.2%) were Spanish descent; 4959 were (82.2%) White; and 342 (5.7%) reported another race (consolidated owing to small numbers), declined to respond, or were not asked to report race owing to regulatory prohibitions. Most patients (4114 [68.2%]) had stable hsTnT values (change <3 ng/L), with 1158 (19.2%) and 763 (12.6%) having changes of 3 to less than 7 ng/L and 7 ng/L or more, respectively. After adjustment for clinical risk factors and stratification by the starting month 1 hsTnT level, an absolute increase in hsTnT of 7 ng/L or more was associated with a more than 3-fold greater risk of the composite outcome (adjusted hazard ratio [aHR], 3.33; 95% CI, 1.99-5.57; P < .001), whereas decreases of 7 ng/L or more were associated with similar to lower risk (aHR, 0.51; 95% CI, 0.26-1.03; P = .06) compared with stable values. There was a stepwise association moving from larger absolute decreases (aHR, 0.51; 95% CI, 0.26-1.03) to larger absolute increases (aHR, 3.33; 95% CI, 1.99-5.57) in hsTnT with future risk of the composite outcome (P trend <.001). A similar association was observed when analyzed on the basis of relative percent and continuous change. Conclusions and Relevance Among stable patients post-ACS, changes in hsTnT were associated with a gradient of risk of subsequent cardiovascular events across the range of starting hsTnT values. Serial assessment of hsTnT may refine risk stratification with the potential to guide therapy decisions in this patient population. Trial Registration ClinicalTrials.gov Identifier: NCT00202878.
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Affiliation(s)
- Siddharth M. Patel
- Thrombolysis in Myocardial Infarction Clinical Trials (TIMI) Study Group, Brigham and Women’s Hospital and Harvard Medical School, Boston, Massachusetts
- Cardiovascular Division, Department of Medicine, Brigham and Women’s Hospital and Harvard Medical School, Boston, Massachusetts
| | - Arman Qamar
- Section of Interventional Cardiology & Vascular Medicine, NorthShore University Health System, University of Chicago Pritzker School of Medicine, Evanston, Illinois
| | - Robert P. Giugliano
- Thrombolysis in Myocardial Infarction Clinical Trials (TIMI) Study Group, Brigham and Women’s Hospital and Harvard Medical School, Boston, Massachusetts
- Cardiovascular Division, Department of Medicine, Brigham and Women’s Hospital and Harvard Medical School, Boston, Massachusetts
| | - Petr Jarolim
- Department of Pathology, Brigham and Women’s Hospital, Harvard Medical School, Boston, Massachusetts
| | - Nicholas A. Marston
- Thrombolysis in Myocardial Infarction Clinical Trials (TIMI) Study Group, Brigham and Women’s Hospital and Harvard Medical School, Boston, Massachusetts
- Cardiovascular Division, Department of Medicine, Brigham and Women’s Hospital and Harvard Medical School, Boston, Massachusetts
| | - Jeong-Gun Park
- Thrombolysis in Myocardial Infarction Clinical Trials (TIMI) Study Group, Brigham and Women’s Hospital and Harvard Medical School, Boston, Massachusetts
| | - Michael A. Blazing
- Duke Clinical Research Institute, Duke University School of Medicine, Durham, North Carolina
| | - Christopher P. Cannon
- Cardiovascular Division, Department of Medicine, Brigham and Women’s Hospital and Harvard Medical School, Boston, Massachusetts
| | - Eugene Braunwald
- Thrombolysis in Myocardial Infarction Clinical Trials (TIMI) Study Group, Brigham and Women’s Hospital and Harvard Medical School, Boston, Massachusetts
- Cardiovascular Division, Department of Medicine, Brigham and Women’s Hospital and Harvard Medical School, Boston, Massachusetts
| | - David A. Morrow
- Thrombolysis in Myocardial Infarction Clinical Trials (TIMI) Study Group, Brigham and Women’s Hospital and Harvard Medical School, Boston, Massachusetts
- Cardiovascular Division, Department of Medicine, Brigham and Women’s Hospital and Harvard Medical School, Boston, Massachusetts
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Patel SM, Palazzolo MG, Murphy SA, Antman EM, Braunwald E, Lanz HJ, Lip GYH, Giugliano RP, Ruff CT. Evaluation of the atrial fibrillation better care pathway in the ENGAGE AF-TIMI 48 trial. Europace 2022; 24:1730-1738. [PMID: 36017608 DOI: 10.1093/europace/euac082] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/08/2022] [Accepted: 05/03/2022] [Indexed: 12/15/2022] Open
Abstract
AIMS The Atrial fibrillation Better Care (ABC) pathway is endorsed by guidelines to improve care of patients with atrial fibrillation (AF). However, whether the benefit of ABC pathway-concordant care is consistent across anticoagulants remains unclear. We assessed the association between ABC-concordant care and outcomes in this post hoc analysis from the ENGAGE AF-TIMI 48 trial, which was reported prior to the initial description of the ABC pathway. METHODS AND RESULTS Patients were retrospectively classified as receiving ABC-concordant care based on optimal anticoagulation, adequate rate control, management of co-morbidities and lifestyle measures. Associations between ABC-concordance and outcomes were assessed with adjustment for components of the CHA2DS2-VASc and HAS-BLED scores. Of 20 926 patients, 7915 (37.8%) satisfied criteria of ABC-concordant care, which was associated with significantly lower incidence of stroke or systemic embolic event [stroke/SEE: hazard ratio (HRadj): 0.54; 95% confidence interval (CI): 0.47-0.63], major bleeding (HRadj 0.66; 95% CI: 0.58-0.75), major adverse cardiac events (HRadj 0.53; 95% CI: 0.48-0.58), primary net clinical outcome (composite of stroke/SEE, major bleeding or death; HRadj 0.61; 95% CI: 0.56-0.65), cardiovascular (CV) hospitalization (HRadj 0.78; 95% CI: 0.74-0.83), CV death (HRadj 0.52; 95% CI: 0.46-0.58), and all-cause mortality (HRadj 0.56; 95% CI: 0.51-0.62), P < 0.001 for each. These associations were qualitatively consistent for both edoxaban and warfarin and across patient subgroups. CONCLUSION Atrial fibrillation Better Care pathway-concordant care is associated with reductions across multiple CV endpoints and all-cause mortality, with benefit in edoxaban- and warfarin-treated patients and across patient subgroups. Increasing implementation of ABC-concordant care may improve clinical outcomes of patients with AF irrespective of anticoagulant.
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Affiliation(s)
- Siddharth M Patel
- TIMI Study Group, Cardiovascular Division, Department of Medicine, Brigham and Women's Hospital and Harvard Medical School, Boston, MA, USA
| | - Michael G Palazzolo
- TIMI Study Group, Cardiovascular Division, Department of Medicine, Brigham and Women's Hospital and Harvard Medical School, Boston, MA, USA
| | - Sabina A Murphy
- TIMI Study Group, Cardiovascular Division, Department of Medicine, Brigham and Women's Hospital and Harvard Medical School, Boston, MA, USA
| | - Elliot M Antman
- TIMI Study Group, Cardiovascular Division, Department of Medicine, Brigham and Women's Hospital and Harvard Medical School, Boston, MA, USA
| | - Eugene Braunwald
- TIMI Study Group, Cardiovascular Division, Department of Medicine, Brigham and Women's Hospital and Harvard Medical School, Boston, MA, USA
| | | | - Gregory Y H Lip
- Liverpool Centre for Cardiovascular Science, University of Liverpool and Liverpool Heart & Chest Hospital, Liverpool, UK.,Department of Clinical Medicine, Aalborg University, Aalborg, Denmark
| | - Robert P Giugliano
- TIMI Study Group, Cardiovascular Division, Department of Medicine, Brigham and Women's Hospital and Harvard Medical School, Boston, MA, USA
| | - Christian T Ruff
- TIMI Study Group, Cardiovascular Division, Department of Medicine, Brigham and Women's Hospital and Harvard Medical School, Boston, MA, USA
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11
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Patel SM, Jentzer JC, Alviar CL, Baird-Zars VM, Barsness GW, Berg DD, Bohula EA, Daniels LB, DeFilippis AP, Keeley EC, Kontos MC, Lawler PR, Miller PE, Park JG, Roswell RO, Solomon MA, van Diepen S, Katz JN, Morrow DA. A pragmatic lab-based tool for risk assessment in cardiac critical care: data from the Critical Care Cardiology Trials Network (CCCTN) Registry. Eur Heart J Acute Cardiovasc Care 2022; 11:252-257. [PMID: 35134860 PMCID: PMC9123931 DOI: 10.1093/ehjacc/zuac012] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/12/2021] [Revised: 12/11/2021] [Accepted: 01/24/2022] [Indexed: 02/05/2023]
Abstract
AIMS Contemporary cardiac intensive care unit (CICU) outcomes remain highly heterogeneous. As such, a risk-stratification tool using readily available lab data at time of CICU admission may help inform clinical decision-making. METHODS AND RESULTS The primary derivation cohort included 4352 consecutive CICU admissions across 25 tertiary care CICUs included in the Critical Care Cardiology Trials Network (CCCTN) Registry. Candidate lab indicators were assessed using multivariable logistic regression. An integer risk score incorporating the top independent lab indicators associated with in-hospital mortality was developed. External validation was performed in a separate CICU cohort of 9716 patients from the Mayo Clinic (Rochester, MN, USA). On multivariable analysis, lower pH [odds ratio (OR) 1.96, 95% confidence interval (CI) 1.72-2.24], higher lactate (OR 1.40, 95% CI 1.22-1.62), lower estimated glomerular filtration rate (OR 1.26, 95% CI 1.10-1.45), and lower platelets (OR 1.18, 95% CI 1.05-1.32) were the top four independent lab indicators associated with higher in-hospital mortality. Incorporated into the CCCTN Lab-Based Risk Score, these four lab indicators identified a 20-fold gradient in mortality risk with very good discrimination (C-index 0.82, 95% CI 0.80-0.84) in the derivation cohort. Validation of the risk score in a separate cohort of 3888 patients from the Registry demonstrated good performance (C-index of 0.82; 95% CI 0.80-0.84). Performance remained consistent in the external validation cohort (C-index 0.79, 95% CI 0.77-0.80). Calibration was very good in both validation cohorts (r = 0.99). CONCLUSION A simple integer risk score utilizing readily available lab indicators at time of CICU admission may accurately stratify in-hospital mortality risk.
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Affiliation(s)
- Siddharth M Patel
- Levine Cardiac Intensive Care Unit, TIMI Study Group, Cardiovascular Division, Department of Medicine, Brigham and Women’s Hospital and Harvard Medical School, 60 Fenwood Rd, Suite 7022, Boston, MA 02115, USA
| | - Jacob C Jentzer
- Department of Cardiovascular Medicine, Mayo Clinic, Rochester, MN, USA
| | - Carlos L Alviar
- Division of Cardiology, Department of Medicine, NYU Langone Medical Center, New York, NY, USA
| | - Vivian M Baird-Zars
- Levine Cardiac Intensive Care Unit, TIMI Study Group, Cardiovascular Division, Department of Medicine, Brigham and Women’s Hospital and Harvard Medical School, 60 Fenwood Rd, Suite 7022, Boston, MA 02115, USA
| | | | - David D Berg
- Levine Cardiac Intensive Care Unit, TIMI Study Group, Cardiovascular Division, Department of Medicine, Brigham and Women’s Hospital and Harvard Medical School, 60 Fenwood Rd, Suite 7022, Boston, MA 02115, USA
| | - Erin A Bohula
- Levine Cardiac Intensive Care Unit, TIMI Study Group, Cardiovascular Division, Department of Medicine, Brigham and Women’s Hospital and Harvard Medical School, 60 Fenwood Rd, Suite 7022, Boston, MA 02115, USA
| | - Lori B Daniels
- Sulpizio Cardiovascular Center, University of California San Diego, La Jolla, CA, USA
| | - Andrew P DeFilippis
- Division of Cardiology, Department of Medicine, Vanderbilt University, Nashville, TN, USA
| | - Ellen C Keeley
- Division of Cardiology, Department of Medicine, University of Florida, Gainesville, FL, USA
| | - Michael C Kontos
- Division of Cardiology, Department of Internal Medicine, Virginia Commonwealth University, Richmond, VA, USA
| | - Patrick R Lawler
- Peter Munk Cardiac Centre at Toronto General Hospital, Division of Cardiology and Interdepartmental Division of Critical Care Medicine, University of Toronto, Toronto, Ontario, Canada
| | - P Elliott Miller
- Section of Cardiovascular Medicine, Department of Internal Medicine, Yale University School of Medicine, New Haven, CT, USA
| | - Jeong-Gun Park
- Levine Cardiac Intensive Care Unit, TIMI Study Group, Cardiovascular Division, Department of Medicine, Brigham and Women’s Hospital and Harvard Medical School, 60 Fenwood Rd, Suite 7022, Boston, MA 02115, USA
| | | | - Michael A Solomon
- Critical Care Medicine Department, National Institutes of Health Clinical Center and Cardiovascular Branch, National Heart, Lung, and Blood Institute of the National Institutes of Health, Bethesda, MD, USA
| | - Sean van Diepen
- Division of Cardiology, Department of Medicine, University of Alberta, Edmonton, AB, Canada,Division of Cardiology, Department of Critical Care, University of Alberta, Edmonton, AB, Canada
| | - Jason N Katz
- Division of Cardiology, Department of Medicine, Duke University, Durham, NC, USA
| | - David A Morrow
- Levine Cardiac Intensive Care Unit, TIMI Study Group, Cardiovascular Division, Department of Medicine, Brigham and Women’s Hospital and Harvard Medical School, 60 Fenwood Rd, Suite 7022, Boston, MA 02115, USA,Corresponding author. Tel: +1 617 278 0181, Fax: +1 617 734 7329,
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O'Gara PT, Sun YP, Patel SM. Referral for Intervention in Severe Symptomatic Aortic Stenosis: Some Progress But Further Room for Improvement. J Am Coll Cardiol 2021; 78:2144-2146. [PMID: 34823656 DOI: 10.1016/j.jacc.2021.09.865] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/20/2021] [Accepted: 09/21/2021] [Indexed: 10/19/2022]
Affiliation(s)
- Patrick T O'Gara
- Cardiovascular Division, Department of Medicine, Brigham and Women's Hospital and Harvard Medical School, Boston, Massachusetts, USA.
| | - Yee-Ping Sun
- Cardiovascular Division, Department of Medicine, Brigham and Women's Hospital and Harvard Medical School, Boston, Massachusetts, USA
| | - Siddharth M Patel
- Cardiovascular Division, Department of Medicine, Brigham and Women's Hospital and Harvard Medical School, Boston, Massachusetts, USA. https://twitter.com/SidPatelMD
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Keitel WA, Potter GE, Diemert D, Bethony J, El Sahly HM, Kennedy JK, Patel SM, Plieskatt JL, Jones W, Deye G, Bottazzi ME, Hotez PJ, Atmar RL. A phase 1 study of the safety, reactogenicity, and immunogenicity of a Schistosoma mansoni vaccine with or without glucopyranosyl lipid A aqueous formulation (GLA-AF) in healthy adults from a non-endemic area. Vaccine 2019; 37:6500-6509. [PMID: 31515141 DOI: 10.1016/j.vaccine.2019.08.075] [Citation(s) in RCA: 30] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/04/2019] [Revised: 08/27/2019] [Accepted: 08/28/2019] [Indexed: 01/05/2023]
Abstract
BACKGROUND Schistosomiasis caused by Schistosoma mansoni (Sm) is a chronic, debilitating and potentially deadly neglected tropical disease. The licensure of a vaccine to prevent schistosomiasis would represent a major breakthrough in public health. METHODS The safety and immunogenicity of a candidate Sm vaccine were assessed in this phase I, double-blind, dose-escalation trial. Seventy-two healthy Sm-naïve 18-50 year olds were randomized to receive 3 doses ∼ 8 weeks apart of saline placebo, or 10 µg, 30 µg, or 100 µg of recombinant Sm-Tetraspanin-2 vaccine formulated on aluminum hydroxide adjuvant (Sm-TSP-2/Al) with or without 5 µg of glucopyranosyl lipid A aqueous formulation (GLA-AF). Clinical and serologic responses were assessed for 1 year after dose 3. RESULTS Vaccines were safe and well-tolerated. The most common reactions were injection site tenderness and pain, and headache and fatigue. Tenderness and pain were more frequent in groups receiving vaccine with GLA-AF than placebo (p = 0.0036 and p = 0.0014, respectively). Injection site reactions among those given Sm-TSP-2/Al with GLA-AF lasted 1.22 and 1.33 days longer than those receiving Sm-TSP-2/Al without GLA-AF or placebo (p < 0.001 for both). Dose- and adjuvant-related increases in serum IgG against Sm-TSP-2 were observed. Peak IgG levels occurred 14 days after dose 3. Seroresponse frequencies were low among recipients of Sm-TSP-2/Al without GLA-AF, but higher among subjects receiving 30 µg or 100 µg of Sm-TSP-2/Al with GLA-AF. More seroresponses were observed among those given 30 µg or 100 µg of Sm-TSP-2/Al with GLA-AF compared to placebo (p = 0.023 and p < 0.001, respectively). Seroresponse frequencies were 0%, 30%, 50%, and 89%, respectively, among those given placebo, or 10 µg, 30 µg or 100 µg of Sm-TSP-2/Al with GLA-AF, suggesting a dose-response relationship for Sm-TSP-2/Al with GLA-AF (p = 0.0001). CONCLUSIONS Sm-TSP-2/Al with or without GLA-AF was safe and well tolerated in a Sm-naïve population. A vaccine like the one under development may represent our best hope to eliminating this neglected tropical disease.
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Affiliation(s)
- W A Keitel
- Departments of Molecular Virology & Microbiology and Medicine, Baylor College of Medicine, Houston, TX, United States.
| | | | - D Diemert
- Department of Microbiology, Immunology and Tropical Medicine, The George Washington University, Washington, DC, United States
| | - J Bethony
- Department of Microbiology, Immunology and Tropical Medicine, The George Washington University, Washington, DC, United States
| | - H M El Sahly
- Departments of Molecular Virology & Microbiology and Medicine, Baylor College of Medicine, Houston, TX, United States
| | | | - S M Patel
- Departments of Molecular Virology & Microbiology and Medicine, Baylor College of Medicine, Houston, TX, United States
| | - J L Plieskatt
- Department of Microbiology, Immunology and Tropical Medicine, The George Washington University, Washington, DC, United States
| | - W Jones
- Division of Microbiology and Infectious Diseases (DMID), National Institutes of Allergy and Infectious. Diseases (NIAID), National Institutes of Health (NIH), United States
| | - G Deye
- Division of Microbiology and Infectious Diseases (DMID), National Institutes of Allergy and Infectious. Diseases (NIAID), National Institutes of Health (NIH), United States
| | - M E Bottazzi
- Departments of Molecular Virology & Microbiology and Medicine, Baylor College of Medicine, Houston, TX, United States; Texas Children's Hospital Center for Vaccine Development, Department of Pediatrics, Baylor College of Medicine, Houston, TX, United States
| | - P J Hotez
- Departments of Molecular Virology & Microbiology and Medicine, Baylor College of Medicine, Houston, TX, United States; Texas Children's Hospital Center for Vaccine Development, Department of Pediatrics, Baylor College of Medicine, Houston, TX, United States
| | - R L Atmar
- Departments of Molecular Virology & Microbiology and Medicine, Baylor College of Medicine, Houston, TX, United States
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Patel SM, Morrow DA, Kidd SK, Goodrich EL, Scirica BM, Bonaca MP. Vorapaxar for secondary prevention in the elderly with peripheral artery disease: Insights from the TRA 2°P-TIMI 50 trial. Vasc Med 2019; 24:159-161. [DOI: 10.1177/1358863x19826681] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Affiliation(s)
- Siddharth M Patel
- Department of Medicine, Brigham and Women’s Hospital, Harvard Medical School, Boston, MA, USA
| | - David A Morrow
- TIMI Study Group, Cardiovascular Division, Department of Medicine, Brigham and Women’s Hospital, Harvard Medical School, Boston, MA, USA
| | - Stephen K Kidd
- Division of Cardiology, Department of Medicine, Northwestern University Feinberg School of Medicine, Chicago, IL, USA
| | - Erica L Goodrich
- TIMI Study Group, Cardiovascular Division, Department of Medicine, Brigham and Women’s Hospital, Harvard Medical School, Boston, MA, USA
| | - Benjamin M Scirica
- TIMI Study Group, Cardiovascular Division, Department of Medicine, Brigham and Women’s Hospital, Harvard Medical School, Boston, MA, USA
| | - Marc P Bonaca
- TIMI Study Group, Cardiovascular Division, Department of Medicine, Brigham and Women’s Hospital, Harvard Medical School, Boston, MA, USA
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Karelia NH, Patel DD, Desai NS, Mehta HV, Yadav PK, Patel SM, Kothari KC, Shah PM. Prognostic Significance of DNA Aneuploidy and p21ras Oncoprotein Expression in Colorectal Cancer and Their Role in the Determination of Treatment Modalities. Int J Biol Markers 2018; 16:97-104. [PMID: 11471902 DOI: 10.1177/172460080101600203] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
Abstract
The purpose of the present study was to investigate the prognostic significance of DNA ploidy, S-phase fraction and p21ras oncoprotein expression in patients with colorectal cancer and to correlate these factors with the clinical behavior of the tumors and their response to therapy. Of 79 patients with colorectal cancer 57% (45/79) had early stage disease. Forty-one percent (32/79) had aneuploid tumors while 30% (24/79) of the tumors had a high (>10%) S-phase fraction. p21ras oncoprotein expression was detected in 38% (30/79) of tumors. Patients with aneuploid tumors had a worse prognosis than patients with diploid tumors (p=0.0002). Similarly, patients with high S-phase fraction tumors had a shorter survival than those with low S-phase fraction tumors (p=0.005). No such difference was found between p21ras-positive and p21ras-negative tumor subgroups. In early stage colorectal cancer, aneuploidy was closely correlated with disease outcome (p=0.029). Early stage patients with diploid tumors who received radiotherapy and chemotherapy had a better prognosis than patients with aneuploid tumors. In conclusion, DNA ploidy is a significant and independent prognostic factor in colorectal cancer. Aneuploidy and genetic alteration of the p21ras oncoprotein are important in determining the biological aggressiveness of colorectal cancer. Furthermore, DNA ploidy may identify those subgroups of patients with early stage disease who may benefit from more aggressive treatment.
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Affiliation(s)
- N H Karelia
- Department of Pathology, The Gujarat Cancer and Research Institute, Ahmedabad, India.
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Patel SM, Menon RV, Burke MN, Jaffer FA, Yeh RW, Vo M, Karmpaliotis D, Azzalini L, Carlino M, Mashayekhi K, Galassi AR, Rinfret S, Ellis SG, Patel M, Rangan BV, Karatasakis A, Danek BA, Karacsonyi J, Resendes E, Banerjee S, Brilakis ES. Current Perspectives and Practices on Chronic Total Occlusion Percutaneous Coronary Interventions. J Invasive Cardiol 2018; 30:43-50. [PMID: 29035846] [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: 06/07/2023]
Abstract
OBJECTIVES We sought to examine contemporary perspectives and practices on chronic total occlusion (CTO) percutaneous coronary intervention (PCI). BACKGROUND The frequency and success of CTO-PCI have been increasing in recent years. METHODS An online questionnaire was created and distributed to cardiologists within the United States and internationally. RESULTS A total of 1149 responses were obtained. The United States (n = 845; 73.5%), Asia (n = 98; 8.5%), Europe (n = 88; 7.7%), South America (n = 42; 3.7%), and Canada (n = 33; 2.9%) accounted for most responses. Mean practice duration of the respondents was 16.4 ± 11.5 years and 66.9% were interventional cardiologists. Most respondents agreed that CTO-PCI results in an improvement of patient symptoms (90.7%), left ventricular function (79.3%), arrhythmia risk (69.2%), and overall survival (63.1%). Interventional cardiologists had a more favorable view of the benefits of CTO-PCI as compared with non-interventional cardiologists (P<.001). Most respondents estimated the procedural success rates of contemporary CTO-PCI to be between 51%-75% (34.2%) and 76%-85% (30.2%), with interventional cardiologists estimating higher success rates than non-interventionalists (P<.001). Perforation, mortality, and tamponade were the three most concerning complications. Time and procedure complexity were reported to be the most significant barriers to the development of a CTO-PCI program. CONCLUSIONS Most cardiologists believe that CTO-PCI can provide significant clinical benefits and can be accomplished with moderate to high success rates. Interventional cardiologists have a more favorable view of CTO-PCI as compared with non-invasive cardiologists.
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Affiliation(s)
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | - Emmanouil S Brilakis
- Minneapolis Heart Institute, 920 E. 28th Street #300, Minneapolis, MN 55407 USA.
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Pokala NR, Menon RV, Patel SM, Christopoulos G, Christakopoulos GE, Kotsia AP, Rangan BV, Roesle M, Abdullah S, Grodin J, Kumbhani DJ, Hastings J, Banerjee S, Brilakis ES. Long-term outcomes with first- vs. second-generation drug-eluting stents in saphenous vein graft lesions. Catheter Cardiovasc Interv 2015; 87:34-40. [DOI: 10.1002/ccd.25982] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/18/2014] [Accepted: 04/04/2015] [Indexed: 11/05/2022]
Affiliation(s)
- Nagendra R. Pokala
- Department of Cardiovascular Diseases; VA North Texas Healthcare System and UT Southwestern Medical Center; Dallas Texas
| | - Rohan V. Menon
- Department of Cardiovascular Diseases; VA North Texas Healthcare System and UT Southwestern Medical Center; Dallas Texas
| | - Siddharth M. Patel
- Department of Cardiovascular Diseases; VA North Texas Healthcare System and UT Southwestern Medical Center; Dallas Texas
| | - George Christopoulos
- Department of Cardiovascular Diseases; VA North Texas Healthcare System and UT Southwestern Medical Center; Dallas Texas
| | - Georgios E. Christakopoulos
- Department of Cardiovascular Diseases; VA North Texas Healthcare System and UT Southwestern Medical Center; Dallas Texas
| | - Anna P. Kotsia
- Department of Cardiovascular Diseases; VA North Texas Healthcare System and UT Southwestern Medical Center; Dallas Texas
| | - Bavana V. Rangan
- Department of Cardiovascular Diseases; VA North Texas Healthcare System and UT Southwestern Medical Center; Dallas Texas
| | - Michele Roesle
- Department of Cardiovascular Diseases; VA North Texas Healthcare System and UT Southwestern Medical Center; Dallas Texas
| | - Shuaib Abdullah
- Department of Cardiovascular Diseases; VA North Texas Healthcare System and UT Southwestern Medical Center; Dallas Texas
| | - Jerrold Grodin
- Department of Cardiovascular Diseases; VA North Texas Healthcare System and UT Southwestern Medical Center; Dallas Texas
| | - Dharam J. Kumbhani
- Department of Cardiovascular Diseases; VA North Texas Healthcare System and UT Southwestern Medical Center; Dallas Texas
| | - Jeffrey Hastings
- Department of Cardiovascular Diseases; VA North Texas Healthcare System and UT Southwestern Medical Center; Dallas Texas
| | - Subhash Banerjee
- Department of Cardiovascular Diseases; VA North Texas Healthcare System and UT Southwestern Medical Center; Dallas Texas
| | - Emmanouil S. Brilakis
- Department of Cardiovascular Diseases; VA North Texas Healthcare System and UT Southwestern Medical Center; Dallas Texas
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Alaswad K, Menon RV, Christopoulos G, Lombardi WL, Karmpaliotis D, Grantham JA, Marso SP, Wyman MR, Pokala NR, Patel SM, Kotsia AP, Rangan BV, Lembo N, Kandzari D, Lee J, Kalynych A, Carlson H, Garcia SA, Thompson CA, Banerjee S, Brilakis ES. Transradial approach for coronary chronic total occlusion interventions: Insights from a contemporary multicenter registry. Catheter Cardiovasc Interv 2015; 85:1123-9. [DOI: 10.1002/ccd.25827] [Citation(s) in RCA: 63] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/16/2014] [Accepted: 01/03/2015] [Indexed: 11/07/2022]
Affiliation(s)
| | - Rohan V. Menon
- VA North Texas Health Care System and University of Texas Southwestern Medical Center; Dallas Texas
| | - Georgios Christopoulos
- VA North Texas Health Care System and University of Texas Southwestern Medical Center; Dallas Texas
| | | | | | - J. Aaron Grantham
- Saint Luke's Mid America Heart Institute and the University of Missouri-Kansas City; Kansas City Missouri
| | - Steven P. Marso
- Saint Luke's Mid America Heart Institute and the University of Missouri-Kansas City; Kansas City Missouri
| | | | - Nagendra R. Pokala
- VA North Texas Health Care System and University of Texas Southwestern Medical Center; Dallas Texas
| | - Siddharth M. Patel
- VA North Texas Health Care System and University of Texas Southwestern Medical Center; Dallas Texas
| | - Anna P. Kotsia
- VA North Texas Health Care System and University of Texas Southwestern Medical Center; Dallas Texas
| | - Bavana V. Rangan
- VA North Texas Health Care System and University of Texas Southwestern Medical Center; Dallas Texas
| | | | | | | | | | | | - Santiago A. Garcia
- Minneapolis VA Healthcare System and University of Minnesota; Minneapolis Minnesota
| | | | - Subhash Banerjee
- VA North Texas Health Care System and University of Texas Southwestern Medical Center; Dallas Texas
| | - Emmanouil S. Brilakis
- VA North Texas Health Care System and University of Texas Southwestern Medical Center; Dallas Texas
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Patel SM, Pokala NR, Menon RV, Kotsia AP, Raja V, Christopoulos G, Michael TT, Rangan BV, Sherbet D, Patel VG, Abdullah SA, Hastings J, Grodin JM, Banerjee S, Brilakis ES. Prevalence and treatment of "balloon-uncrossable" coronary chronic total occlusions. J Invasive Cardiol 2015; 27:78-84. [PMID: 25661758] [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: 06/04/2023]
Abstract
BACKGROUND The frequency and outcomes of "balloon-uncrossable" coronary chronic total occlusions (CTOs) have received limited study. METHODS We retrospectively examined 373 consecutive CTO percutaneous coronary interventions (PCIs) performed at our institution between 2005 and 2013 to determine the frequency and treatment of balloon-uncrossable CTOs. RESULTS Mean age was 63.7 ± 8.3 years and 98.9% of the patients were men. Twenty-four patients (6.4%, 95% confidence intervals 4.2% to 9.4%) were found to have a balloon-uncrossable CTO. Compared to the other CTO PCI patients, those with balloon-uncrossable CTOs had similar clinical and angiographic characteristics. Successful crossing of the balloon-uncrossable CTO was achieved in 22 of 24 patients (91.7%) using a variety of techniques, such as successive balloon inflations (43.5%), microcatheter advancement (21.7%), laser (8.7%), techniques that increase guide catheter support (13.0%), and subintimal lesion crossing (13.0%). Patients with balloon-uncrossable CTOs had longer procedure time (184.5 ± 77.9 vs 134.0 ± 69.0 min, P<.01), fluoroscopy time (55.2 ± 24.9 vs 37.9 ± 20.8 min, P<.01), and received high contrast volume (404.4 ± 137.9 vs 351.7 ± 138.5 mL, P=.08), but had similar incidence of major complications (8.3% vs 3.2%, P=.25) as compared with patients who did not have balloon-uncrossable CTOs. CONCLUSION Balloon-uncrossable CTOs are encountered in 6.4% of contemporary CTO PCIs and can be successfully treated in most patients using a variety of techniques.
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Affiliation(s)
- Siddharth M Patel
- VA North Texas Health Care System, The University of Texas Southwestern Medical Center at Dallas, Division of Cardiology (111A), 4500 S. Lancaster Rd, Dallas, TX 75216 USA.
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Menon RV, Alaswad K, Lombardi W, Mishoe KL, Grantham JA, Marso SP, Rutherford B, Patel SM, Pokala NR, Rangan B, Michael TT, Kotsia A, Mogabgab O, Sherbet D, Patel VG, Banerjee S, Thompson C, Brilakis E. TCT-381 The Safety And Efficacy Of The "Hybrid Approach" To Chronic Total Occlusions: Insights From A Contemporary Multicenter US Registry. J Am Coll Cardiol 2013. [DOI: 10.1016/j.jacc.2013.08.1120] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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Patel SM, Patel RP, Prajapati BG. Solubility enhancement of benfotiamine, a lipid derivative of thiamine by solid dispersion technique. J Pharm Bioallied Sci 2012; 4:S104-5. [PMID: 23066179 PMCID: PMC3467834 DOI: 10.4103/0975-7406.94157] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022] Open
Abstract
The present study was aimed to increase the solubility of the poorly water soluble drug benfotiamine using hydrophilic polymers (PVP K-30 and HPMC E4). Solid dispersions were prepared by kneading method. Phase solubility study, in-vitro dissolution of pure drug, physical mixtures and solid dispersions were carried out. PVP and HPMC were found to be effective in increasing the dissolution of Benfotiamine in solid dispersions when compared to pure drug. FT-IR, differential scanning calorimetry and X-ray diffractometry studies were carried out in order to characterize the drug and solid dispersion. To conclude that, the prepared solid dispersion of PVP-30 may to effectively used for the enhancement of solubility of poorly water soluble drugs such as benfotiamine.
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Affiliation(s)
- S M Patel
- S.K. Patel College of Pharmaceutical Education and Research, Ganpat Vidyanagar, Mehsana-Gozariya Highway, Kherva, Gujarat, India
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Shah UM, Patel SM, Patel PH, Hingorani L, Jadhav RB. Development and Validation of a Simple Isocratic HPLC Method for Simultaneous Estimation of Phytosterols in Cissus quadrangularis. Indian J Pharm Sci 2011; 72:753-8. [PMID: 21969748 PMCID: PMC3178977 DOI: 10.4103/0250-474x.84587] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/20/2010] [Revised: 11/19/2010] [Accepted: 11/22/2010] [Indexed: 11/30/2022] Open
Abstract
Cissus quadrangularis L. is a promising remedy prescribed in the ancient Ayurvedic literature for bone fracture healing properties. As this activity has been extensively investigated and well established, a range of formulations containing C. quadrangularis has been marketed. This work reports the development and validation of a reliable RP-HPLC method for the analysis of phytosterols in the various extracts of the plant. The proposed method utilizes a Cosmosil C8 column (250 ΄ 4.6 mm) with a compatible Phenomenex C8 guard column with isocratic elution of acetonitrile and water (95:5 v/v) at 25°. An effluent flow rate of 2 ml/min and UV detection at 202 nm was used for the analysis of phytosterols. The described method was linear in the range of 1–500 μg/ml, with excellent correlation coefficients. The precision, robustness and ruggedness values were also within the prescribed limits (less than 2%). The recovery values were within the range, which indicates that the accuracy of the analysis was good and that the interference of the matrix with the recovery of phytosterols was low. The phytosterols were found to be stable in a stock solution for 48 h (% RSD was below 2%) and no interfering extra peaks were observed under controlled stress conditions. The proposed method is simple, specific, precise, accurate, and reproducible and thus can be used for routine analysis of C. quadrangularis phytosterols in quality control laboratories.
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Affiliation(s)
- Unnati M Shah
- Bioecology Laboratory, Department of Pharmacognosy, R.C. Patel Institute of Pharmaceutical Education and Research, Shirpur - 425 405, India
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Fujii AM, Patel SM, Allen R, Doros G, Guo CY, Testa S. Poractant alfa and beractant treatment of very premature infants with respiratory distress syndrome. J Perinatol 2010; 30:665-70. [PMID: 20336076 DOI: 10.1038/jp.2010.20] [Citation(s) in RCA: 29] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Abstract
OBJECTIVE Comparison of the differences between availability of animal-derived surfactant preparations used to treat premature infants is incomplete. The objective of this study was to assess the short-term treatment efficacy of the two most commonly used surfactant preparations in the United States, beractant (100 mg kg(-1) initial and subsequent doses) and poractant alfa (200 mg kg(-1) initial and 100 mg kg(-1) subsequent doses), in very premature, mechanically ventilated infants <30 weeks gestation with respiratory distress syndrome (RDS). STUDY DESIGN Inborn infants at two institutions, open label, 1:1, randomized controlled trial. Level of respiratory support for first 72 h of life. Morbidities of prematurity observed during the neonatal intensive care unit hospitalization. RESULT We studied 52 infants 24 0/7 to 29 6/7 weeks gestation; 25 received poractant alfa (27.1±1.6 weeks, birth weight of 930±231 g) and 27 received beractant (26.7±1.7 weeks, P=0.343 and birth weight 900±271 g, P=0.668). Respiratory support for the first 72 h of life was lower in the poractant alfa than beractant group for mean airway pressure (MAP, P=0.003) and respiratory index (MAP × FiO(2), P=0.032). Infants in the poractant alfa group had a greater number of infants extubated at 48 (13/25 vs 6/27, P=0.027) and 72 h (15/25 vs 8/27, P=0.029) than the beractant group. Although the study was not powered to detect morbidities of prematurity, the prevalence of PDA and air leaks was less in the infants treated with poractant alfa than in those treated with beractant. Rates of bronchopulmonary dysplasia (8/23 vs 11/22, P=0.303) or death (2/25 [corrected] vs 5/27, P=0.272) were similar in the infants treated with poractant alfa and beractant, respectively. CONCLUSION This study suggests significant short-term benefits to the use of the larger initial dose of poractant alfa than beractant in very premature infants with RDS. Further studies involving a larger number of preterm infants are needed to assess long-term effects.
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Affiliation(s)
- A M Fujii
- Department of Pediatrics, Boston University School of Medicine, Boston, MA 02118, USA.
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El Sahly HM, Atmar RL, Patel SM, Wells JM, Cate T, Ho M, Guo K, Pasetti MF, Lewis DE, Sztein MB, Keitel WA. Safety, reactogenicity and immunogenicity of Francisella tularensis live vaccine strain in humans. Vaccine 2009; 27:4905-11. [PMID: 19567246 PMCID: PMC2726995 DOI: 10.1016/j.vaccine.2009.06.036] [Citation(s) in RCA: 35] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/05/2009] [Revised: 06/05/2009] [Accepted: 06/09/2009] [Indexed: 11/16/2022]
Abstract
We evaluated the safety, reactogenicity and immunogenicity of escalating doses of a new Francisella tularensis Live Vaccine Strain (LVS) lot by scarification (SCAR) or subcutaneously (SQ) in humans. Subjects (N=10/group) received one dose of LVS via SCAR at 10(5),10(7) or 10(9)cfu/ml or SQ at 10(2), 10(3),10(4) or 10(5)cfu/ml; 14 subjects received placebo. All doses/routes were well tolerated. When compared to placebo, vaccination with 10(7) SCAR and 10(9) SCAR resulted in significantly higher serologic response frequencies, as measured by ELISA for IgG, IgM, IgA and microagglutination; whereas vaccination with 10(5) SCAR, 10(7) SCAR 10(9) SCAR and 10(5) SQ elicited a significantly higher interferon-gamma response frequency.
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Affiliation(s)
- H M El Sahly
- Department of Molecular Virology and Microbiology, Baylor College of Medicine, Houston, TX, United States.
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Mensah-Brown EPK, Obineche EN, Galadari S, Chandranath E, Shahin A, Ahmed I, Patel SM, Adem A. Streptozotocin-induced diabetic nephropathy in rats: the role of inflammatory cytokines. Cytokine 2006; 31:180-90. [PMID: 15975818 DOI: 10.1016/j.cyto.2005.04.006] [Citation(s) in RCA: 57] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/12/2004] [Revised: 04/13/2005] [Accepted: 04/18/2005] [Indexed: 11/28/2022]
Abstract
The role of inflammatory cytokines in the pathogenesis of diabetic nephropathy has been studied in streptozotocin-induced diabetic rats. Rat kidneys were examined by light and electron microscopy and kidney homogenates were also analyzed by Western blot and flow cytometry for the expression of markers of inflammation namely, CD4+ and CD8+ T cells, macrophages, MHC classes I and II, the proinflammatory cytokines tumor necrosis factor-alpha, interferon-gamma and nitric oxide (NO). Light and electron microscope examination revealed infiltration of mononuclear cells throughout the renal parenchyma, with the glomeruli being more severely affected especially at 8 months after disease induction. Western blot and flow cytometric analyses revealed the infiltrating cells to be CD4+ T cells, CD8+ T cells and macrophages. Western blot analyses also revealed increased expression of the proinflammatory and Th1 cytokines tumor necrosis factor-alpha, interferon-gamma as well as nitric oxide. Using flow cytometry, we have shown that the difference in expression of CD4+ T cells in control and diabetic kidneys is more significant at 1 month than at 8 months, while expression of CD8+ T cells is more significant at 8 months. We speculate therefore that diabetic nephropathy is probably initiated and driven by a Th1 process. CD8+ T cells, however, become more significant at later stages of the disease when tissue loss is evident. Since NO induction also occurs only after 8 months, we hypothesize that NO might be significant for the later stages of the disease. Our data implicate inflammation in the pathogenesis of diabetic nephropathy in view of the overexpression of the proinflammatory cytokines TNF-alpha and IFN-gamma and the cells that secrete them in the early and late phases of the disease.
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Affiliation(s)
- E P K Mensah-Brown
- Department of Anatomy, Faculty of Medicine and Health Sciences, UAE University, Al Ain, United Arab Emirates
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Patel T, Bansal R, Trivedi P, Patel SM, Bhullar C. An unusual localization of mucormycosis diagnosed by fine needle aspiration cytology: a case report. INDIAN J PATHOL MICR 2005; 48:405-7. [PMID: 16761771] [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] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/10/2023] Open
Abstract
Mucormycosis is an uncommon fungal infection, occurring mainly in patients with acidosis, chronic illnesses and malignancies. The most frequent site of involvement in patients of hematological malignancies is the respiratory tract. Isolated subcutaneous localization of mucormycosis in such patients is extremely rare. We report a case of a young patient of non-Hodgkin's lymphoma on chemotherapy who presented with a subcutaneous swelling on the anterior aspect of right thigh. Fine needle aspiration cytology (FNAC) smears from the swelling revealed numerous characteristic broad, irregularly contoured and pleomorphic hyphae of mucormycosis. This fungus seldom grows in culture and confirmation of the diagnosis depends on cytological or histological examination of infected tissues. Our case report documents a rare site of isolated mucormycosis infection and emphasizes the role of FNAC as a simple, rapid, accurate, and useful method of diagnosing fungal infections.
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Affiliation(s)
- Trupti Patel
- Department of Pathology, The Gujarat Cancer and Research Institute, M.P. Shah Cancer Hospital, Ahmedabad, Gujarat.
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Patel SM, Stason WB, Legedza A, Ock SM, Kaptchuk TJ, Conboy L, Canenguez K, Park JK, Kelly E, Jacobson E, Kerr CE, Lembo AJ. The placebo effect in irritable bowel syndrome trials: a meta-analysis. Neurogastroenterol Motil 2005; 17:332-40. [PMID: 15916620 DOI: 10.1111/j.1365-2982.2005.00650.x] [Citation(s) in RCA: 213] [Impact Index Per Article: 11.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Abstract
BACKGROUND Despite the apparent high placebo response rate in randomized placebo-controlled trials (RCT) of patients with irritable bowel syndrome (IBS), little is known about the variability and predictors of this response. OBJECTIVES To describe the magnitude of response in placebo arms of IBS clinical trials and to identify which factors predict the variability of the placebo response. METHODS We performed a meta-analysis of published, English language, RCT with 20 or more IBS patients who were treated for at least 2 weeks. This analysis is limited to studies that assessed global response (improvement in overall symptoms). The variables considered as potential placebo modifiers were study design, study duration, use of a run-in phase, Jadad score, entry criteria, number of office visits, number of office visits/study duration, use of diagnostic testing, gender, age and type of medication studied. FINDINGS Forty-five placebo-controlled RCTs met the inclusion criteria. The placebo response ranged from 16.0 to 71.4% with a population-weighted average of 40.2%, 95% CI (35.9-44.4). Significant associations with lower placebo response rates were fulfillment of the Rome criteria for study entry (P=0.049) and an increased number of office visits (P=0.026). CONCLUSIONS Placebo effects in IBS clinical trials measuring a global outcome are highly variable. Entry criteria and number of office visits are significant predictors of the placebo response. More stringent entry criteria and an increased number of office visits appear to independently decrease the placebo response.
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Affiliation(s)
- S M Patel
- Division of Gastroenterology, Department of Medicine, Beth Israel Deaconess Medical Center, Boston, MA 02215, USA
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Patel SM, Stason WB, Legedza A, Ock SM, Kaptchuk TJ, Conboy L, Canenguez K, Park JK, Kelly E, Jacobson E, Kerr CE, Lembo AJ. The placebo effect in irritable bowel syndrome trials: a meta-analysis. Neurogastroenterol Motil 2005. [PMID: 15916620 DOI: 10.1111/j.1365-2982.2015.00650.x] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/23/2023]
Abstract
BACKGROUND Despite the apparent high placebo response rate in randomized placebo-controlled trials (RCT) of patients with irritable bowel syndrome (IBS), little is known about the variability and predictors of this response. OBJECTIVES To describe the magnitude of response in placebo arms of IBS clinical trials and to identify which factors predict the variability of the placebo response. METHODS We performed a meta-analysis of published, English language, RCT with 20 or more IBS patients who were treated for at least 2 weeks. This analysis is limited to studies that assessed global response (improvement in overall symptoms). The variables considered as potential placebo modifiers were study design, study duration, use of a run-in phase, Jadad score, entry criteria, number of office visits, number of office visits/study duration, use of diagnostic testing, gender, age and type of medication studied. FINDINGS Forty-five placebo-controlled RCTs met the inclusion criteria. The placebo response ranged from 16.0 to 71.4% with a population-weighted average of 40.2%, 95% CI (35.9-44.4). Significant associations with lower placebo response rates were fulfillment of the Rome criteria for study entry (P=0.049) and an increased number of office visits (P=0.026). CONCLUSIONS Placebo effects in IBS clinical trials measuring a global outcome are highly variable. Entry criteria and number of office visits are significant predictors of the placebo response. More stringent entry criteria and an increased number of office visits appear to independently decrease the placebo response.
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Affiliation(s)
- S M Patel
- Division of Gastroenterology, Department of Medicine, Beth Israel Deaconess Medical Center, Boston, MA 02215, USA
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Patel SM, Shapiro K, Abdo Z, Ferzli GS. Obstructive symptoms associated with the Lap-Band in the first 24 hours. Surg Endosc 2004; 18:51-5. [PMID: 14625749 DOI: 10.1007/s00464-002-8650-z] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/19/2002] [Accepted: 06/24/2003] [Indexed: 11/25/2022]
Abstract
BACKGROUND The Lap-Band is a gastric restrictive procedure for the treatment of morbid obesity. We review the etiology of obstructive complications that present in the first postoperative 24 h. METHODS Fifty-six Lap-Band procedures were performed by one surgeon between January and September 2002. RESULTS Six patients presented with obstruction within 24 h of surgery: gastric slippage in three patients, gastric edema in one patient, and esophageal hypomotility in two patients. CONCLUSIONS Placing the band in an esophagogastric position as per Belachew and Weiner reduced our incidence of gastric slippage to none. Endoscopy with placement of a nasogastric feeding tube can relieve obstruction caused by esophageal hypomotility. Gastric edema with no clinical signs of obstruction will resolve with time. Clinicians must be aware of the unique complications that come with the advent of this new procedure.
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Affiliation(s)
- S M Patel
- Department of Surgery, Staten Island University Hospital, 65 Cromwell Avenue, Staten Island, NY 10304, USA
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Abstract
It has previously been demonstrated that central administration of the GABAB agonist baclofen increases food intake in non-deprived or satiated animals by action at the central GABAB receptors. It has also been shown that systemic administration of baclofen increases food intake in non-deprived rats. Although baclofen crosses the blood brain barrier from systemic circulation to enter the brain, it is conceivable that it may increase food intake by a peripheral mode of action. This possibility was examined in the present study. The effects of intraperitoneal (i.p.) administration of the GABAB receptor agonists baclofen and 3-aminopropylphosphinic acid (3-APA) were investigated on food intake in non-deprived rats. 3-APA is a potent GABAB agonist that does not penetrate the blood brain barrier. The results show that while baclofen (1-4 mg/kg) increases food intake in a dose-related manner, 3-APA (0.5-2 mg/kg) has no effects on food consumption. The results indicate that a peripheral GABAB mechanism is not involved in the hyperphagia elicited by systemic administration of baclofen and suggests that the drug increases food intake by a central mode of action.
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Affiliation(s)
- I S Ebenezer
- Neuropharmacology Research Group, School of Pharmacy and Biomedical Sciences, University of Portsmouth, Portsmouth, England.
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Patel TS, Bhullar C, Bansal R, Patel SM. Interpreting epithelial cell abnormalities detected during cervical smear screening--a cytohistologic approach. EUR J GYNAECOL ONCOL 2004; 25:725-8. [PMID: 15597851] [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] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/01/2023]
Abstract
PURPOSE To determine the underlying pathology and clinical significance of epithelial cell abnormalities (ECA) identified during cervical Papanicolaou (Pap) smear screening. MATERIAL AND METHODS A total of 19,215 Pap smears stained by Papanicolaou stain were screened during a 36-month period. They were classified according to The Bethesda System (TBS) for cervical cytology screening and the results of ECA were compared with histology. The chi square test was applied to determine the significance and validity of high-grade lesions on cytology diagnosis. RESULT 360 cases of ECA were identified. Mean age at presentation was 50.58 years. Cytohistologic correlation of ECA was possible in n = 249 (69.17%) of cases. Out of these, 18 cases were negative, six were inflammatory, three were benign, and 222 cases showed pathology ranging from mild dysplasia to invasive carcinoma. The chi square test showed a highly significant predictive value (p < 0.001) for high-grade lesions detected on Pap smears. CONCLUSION Pap smear results of high-grade squamous intraepithelial lesions (HSIL) or invasive malignancy are highly reliable and the patient may be considered directly for therapeutic intervention. Of cytologically detected ASCUS cases 38.89% were diagnosed as CIN (1-3) on histology. Thus the management of these patients needs to be re-evaluated. Atypical glandular cells of undetermined significance (AGUS) detected in postmenopausal women signify an underlying pathology. These patients should be further investigated and followed to biopsy if necessary.
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Affiliation(s)
- T S Patel
- Department of Pathology, The Gujarat Cancer and Research Institute, M.P. Shah Cancer Hospital, Ahmedabad, Gujarat, India
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Patel SM, Ebenezer IS. The effects of the benzodiazepine receptor ligand 3-(methoxycarbonyl) amino-beta-carboline on food and water intake in rats. Methods Find Exp Clin Pharmacol 2002; 24:681-3. [PMID: 12616961 DOI: 10.1358/mf.2002.24.10.802318] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
Abstract
The effects of the benzodiazepine receptor ligand 3-(methoxycarbonyl) amino-beta-carboline (beta-CMC) were investigated on food intake in rats that had been fasted for 22 h, and on water intake in rats that had been deprived of water for 16 h. beta-CMC (2-8 mg/kg i.p.) produced a dose-related inhibition of food intake. Significant hyperphagia (p < 0.01) was observed with the 8 mg/kg dose. By contrast, the 8 mg/kg dose did not affect water intake in thirsty rats. The data suggests that beta-CMC has properties on food intake similar to those of a benzodiazepine receptor inverse agonist.
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Affiliation(s)
- S M Patel
- Neuropharmacology Research Group, School of Pharmacy and Biomedical Sciences, University of Portsmouth, Portsmouth, Hampshire, UK
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Patel C, Sidhu KP, Shah MJ, Patel SM. Role of mitotic counts in the grading and prognosis of the breast cancer. INDIAN J PATHOL MICR 2002; 45:247-54. [PMID: 12785160] [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] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/02/2023] Open
Abstract
100 Cases of invasive breast cancer were studied for Tumor type, Tumor site, Nodal Status, Mitotic counts, Nuclear pleomorphism, Tubule formation and Nottingham modification of Bloom Richardson Grading. The follow up of the 82 patients treated with surgery and adjuvant treatment was available. Mitotic activity index (MAI) counted with strict criteria of elston CW, emerged as one of the most significant prognostic parameter followed by overall grade in predicting Tumor free survival (TFS) for the patients. Mitotic count also correlated well with overall Grade and lymph node status in predicting the TFS. This parameter is very useful where advanced studies like flowcytometry and immunohistochemical studies of the cell proliferation marker are not available.
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Affiliation(s)
- Chandrakant Patel
- Department of Pathology, M P Ahah Cancer Hospital, Gujarat Cancer and Research Institute, Civil Campus, Ahmedabad
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Abstract
The calcium (Ca(2+)) regulation of neurotransmitter release is poorly understood. Here we investigated several aspects of this process in PC12 cells. We first showed that osmotic shock by 1 m sucrose stimulated rapid release of neurotransmitters from intact PC12 cells, indicating that most of the vesicles were docked at the plasma membrane. Second, we further investigated the mechanism of rescue of botulinum neurotoxin E inhibition of release by recombinant SNAP-25 COOH-terminal coil, which is known to be required in the triggering stage. We confirmed here that Ca(2+) was required simultaneously with the SNAP-25 peptide, with no significant increase in release if either the peptide or Ca(2+) was present during the priming stage as well as the triggering, suggesting that SNARE (soluble N-ethylmaleimide-sensitive fusion protein attachment protein receptor) complex assembly was involved in the final Ca(2+)-triggered event. Using this rescue system, we also identified a series of acidic surface SNAP-25 residues that rescued better than wild-type when mutated, due to broadened Ca(2+) sensitivity, suggesting that this charged patch may interact electrostatically with a negative regulator of membrane fusion. Finally, we showed that the previously demonstrated stimulation of exocytosis in this system by calmodulin required calcium binding, since calmodulin mutants defective in Ca(2+)-binding were not able to enhance release.
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Affiliation(s)
- Y A Chen
- Howard Hughes Medical Institute, Department of Molecular and Cellular Physiology, Stanford University School of Medicine, Stanford, California 94305-5345, USA
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Patel SM, Borne J, Neitzschman H. Radiology case of the month. Painful eye. Orbital myositis (orbital pseodotumor). J La State Med Soc 2000; 152:423-4. [PMID: 11064550] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 04/15/2023]
Affiliation(s)
- S M Patel
- Louisiana State University Health Sciences Center, New Orleans, USA
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Patel SM, Clayton J, Neitzschman H. Radiology case of the month. Incidental discovery on mammography done for a palpable breast mass. Granular cell tumor. J La State Med Soc 2000; 152:377-8. [PMID: 11011522] [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: 02/17/2023]
Abstract
A 32-two-year-old woman complains of a palpable lump in her left breast. Her past medical and family history is non-contributory. There was no palpable lump on clinical breast examination. A mammogram was performed.
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Affiliation(s)
- S M Patel
- Louisiana State University Health Sciences Center, New Orleans, USA
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Neitzschman H, Patel SM, Borne J. Radiology case of the month. Cerebrovascular accident. Mitochondrial encephalomyopathy. J La State Med Soc 2000; 152:281-2. [PMID: 10935365] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 02/17/2023]
Affiliation(s)
- H Neitzschman
- Louisiana State University Health Sciences Center, New Orleans, USA
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Abstract
Intracellular membrane fusion is mediated by the formation of a four-helix bundle comprised of SNARE proteins. Every cell expresses a large number of SNARE proteins that are localized to particular membrane compartments, suggesting that the fidelity of vesicle trafficking might in part be determined by specific SNARE pairing. However, the promiscuity of SNARE pairing in vitro suggests that the information for membrane compartment organization is not encoded in the inherent ability of SNAREs to form complexes. Here, we show that exocytosis of norepinephrine from PC12 cells is only inhibited or rescued by specific SNAREs. The data suggest that SNARE pairing does underlie vesicle trafficking fidelity, and that specific SNARE interactions with other proteins may facilitate the correct pairing.
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Affiliation(s)
- S J Scales
- Howard Hughes Medical Institute, Department of Molecular and Cellular Physiology, Stanford University School of Medicine, California 94305, USA
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Patel SM, Letourneau J, Neitzschman H. Radiology case of the month. Abdominal mass. Bilateral ovarian cystic teratoma. J La State Med Soc 2000; 152:112-3. [PMID: 10851824] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 02/16/2023]
Affiliation(s)
- S M Patel
- Louisiana State University Health Sciences Center, New Orleans, USA
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Patel SM, Stark BC, Hwang KW, Dikshit KL, Webster DA. Cloning and expression of Vitreoscilla hemoglobin gene in Burkholderia sp. strain DNT for enhancement of 2,4-dinitrotoluene degradation. Biotechnol Prog 2000; 16:26-30. [PMID: 10662485 DOI: 10.1021/bp9901421] [Citation(s) in RCA: 42] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
The gene (vgb) encoding the hemoglobin (VHb) of Vitreoscilla sp. was cloned into a broad host range vector and stably transformed into Burkholderia (formerly Pseudomonas) sp. strain DNT, which is able to degrade and metabolize 2,4-dinitrotoluene (DNT). Vgb was stably maintained and expressed in functional form in this recombinant strain (YV1). When growth of YV1, in both tryptic soy broth and minimal salts broth containing DNT and yeast extract, was compared with that of the untransformed strain, YV1 grew significantly better on a cell mass basis (A(600)) and reached slightly higher maximum viable cell numbers. YV1 also had roughly twice the respiration as strain DNT on a cell mass basis, and in DNT-containing medium, YV1 degraded DNT faster than the untransformed strain. YV1 cells pregrown in medium containing DNT plus succinate showed the fastest degradation: 100% of the initial 200 ppm DNT was removed from the medium within 3 days.
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Affiliation(s)
- S M Patel
- Department of Biological Sciences, Illinois Institute of Technology, Chicago, Illinois 60616, USA
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Patel SM. Should men be screened for prostate cancer? N C Med J 1999; 60:275-7. [PMID: 10495656] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/13/2023]
Affiliation(s)
- S M Patel
- Veterans Administration Medical Center in Asheville, USA
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Patel SM, Joslyn J, Neitzschman H. Radiology case of the month. TB or not TB? Tuberculous spondylitis of the thoracic spine. J La State Med Soc 1999; 151:402-4. [PMID: 10554475] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 02/14/2023]
Affiliation(s)
- S M Patel
- Louisiana State University Medical Center, New Orleans, La., USA
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Abstract
Neurotransmitter exocytosis, a process mediated by a core complex of syntaxin, SNAP-25, and VAMP (SNAREs), is inhibited by SNARE-cleaving neurotoxins. Botulinum neurotoxin E inhibition of norepinephrine release in permeabilized PC12 cells can be rescued by adding a 65 aa C-terminal fragment of SNAP-25 (S25-C). Mutations along the hydrophobic face of the S25-C helix result in SNARE complexes with different thermostabilities, and these mutants rescue exocytosis to different extents. Rescue depends on the continued presence of both S25-C and Ca2+ and correlates with complex formation. The data suggest that Ca2+ triggers S25-C binding to a low-affinity site, initiating trans-complex formation. Pairing of SNARE proteins on apposing membranes leads to bilayer fusion and results in a high-affinity cis-SNARE complex.
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Affiliation(s)
- Y A Chen
- Howard Hughes Medical Institute, Department of Molecular and Cellular Physiology, Stanford University School of Medicine, California 94305-5345, USA
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Rajbala A, Sane AS, Shah PR, Mishra VV, Patel SM, Shah SA, Shah VR, Trivedi HL. Effect of renal transplantation (surgical stress) on serum levels of oxidants and reducing system. Panminerva Med 1999; 41:31-4. [PMID: 10230254] [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] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/12/2023]
Abstract
BACKGROUND This study attempts to understand the correlation (if any) between surgical stress of renal transplantation and serum levels of pro-oxidant/antioxidants. METHODS Twenty-four ESRD patients having undergone transplant surgery followed from day-1 to day-10 postsurgery were investigated for serum levels of MDA, SOD, Vit. C and E. The drug regimen received was immunosuppressant, H2 blockers and antihypertensives as per the situation. RESULTS The typical observations indicated elevated serum levels of MDA from preoperative stage reaching peak value 24 hrs after surgery followed by a steady fall and achieving minima on the 10th day. As regards antioxidants enzyme SOD, Vit. C, Vit. E were low from pretransplant day reaching minima 24 hours postoperatively and returning to normal from 7th day. CONCLUSIONS The present investigation has amply shown a typical imbalance between pro-oxidant/antioxidants from pretransplant day up to 24 hrs and there after returning to normal level from 7th day suggestive to desired recovery and surgical stress not a limiting factor in way of health progress renal transplant. Dietary intake of Vit. C and E in mega doses can be a good therapeutic measure.
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Affiliation(s)
- A Rajbala
- Department of Laboratory Medicine (Biochemistry), Institute of Kidney Diseases and Research Centre, Ahmedabad, India
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Affiliation(s)
- S M Patel
- School of Natural and Environmental Sciences, Coventry University
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Jindal RM, Patel SM. Buerger's disease in western India. Postgrad Med J 1993; 69:326-7. [PMID: 7686671 PMCID: PMC2399643 DOI: 10.1136/pgmj.69.810.326-a] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/26/2023]
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Jindal RM, Patel SM. Buerger's disease and cigarette smoking in Bangladesh. Ann R Coll Surg Engl 1992; 74:436-7. [PMID: 1471844 PMCID: PMC2497682] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022] Open
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Motiwala HG, Sanghvi NP, Barjatiya MK, Patel SM. Syndrome of inappropriate antidiuretic hormone following tuberculous epididymo-orchitis in renal transplant recipient: case report. J Urol 1991; 146:1366-7. [PMID: 1942295 DOI: 10.1016/s0022-5347(17)38097-7] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
Abstract
A rare case of the inappropriate antidiuretic hormone syndrome after tuberculous epididymoorchitis in a renal transplant recipient is described. Orchiectomy was performed because of a cold abscess, following which clinical improvement was noted.
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Affiliation(s)
- H G Motiwala
- Department of Urology and Transplantation, B.J. Medical College, Civil Hospital, Ahmedabad, India
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Abstract
Between 1986 and 1989, 12 patients underwent ureteric substitution with a Boari bladder flap at this Institute. The indications were ureteric injury following hysterectomy, difficult forceps delivery, difficult ureterolithotomy, ureteric strictures caused by a Dormia basket and previous ureteric surgery, tuberculosis, retroperitoneal fibrosis and a post-ureteric reimplantation fistula. There were 2 patients with a solitary kidney and 2 in acute renal failure. Double J stenting was carried out in 11 patients and the stent was removed 3 to 6 weeks post-operatively. Good results, with no morbidity or mortality, were achieved in all but 1 patient where a simple Silastic stent had migrated to the pelvis and required open surgery to remove it. We attribute our success to the tension-free anastomosis, a wide based posterior flap with preservation of its vascular supply, the use of a double J stent and vicryl suture material.
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Affiliation(s)
- H G Motiwala
- Department of Urology and Transplantation, B.J. Medical College, Ahmedabad, India
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