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Yoo JJ, Cohen HJ, Artz AS, Price E, Fill JA, Prchal J, Sapp S, Barnhart H. Biomarkers of erythropoiesis response to intravenous iron in a crossover pilot study in unexplained anemia of the elderly. Hematology 2023; 28:1-8. [PMID: 37114660 DOI: 10.1080/16078454.2023.2204613] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/29/2023] Open
Abstract
Anemia is common in older adults, but often unexplained. Previously, we conducted a randomized, controlled trial of intravenous (IV) iron sucrose to study its impact on the 6-minute walk test and hemoglobin in older adults with unexplained anemia and ferritin levels of 20-200 ng/mL. In this report, we present for the first time the response of hemoglobin, as well as the dynamic response of biomarkers of erythropoiesis and iron indices, in a pooled analysis of the initially IV iron-treated group of 9 subjects and the subsequently IV iron treated 10 subjects from the delayed treatment group. We hypothesized that there would be a reproducible hemoglobin response from IV iron, and that iron indices and erythropoietic markers would reflect appropriate iron loading and reduced erythropoietic stress. To investigate the biochemical response of anemia to IV iron, we studied the dynamics of soluble transferrin receptor (STfR), hepcidin, erythropoietin (EPO), and iron indices over 12 weeks after treatment. In total, all 19 treated subjects were evaluable: 9 from initial treatment and 10 after cross-over. Hemoglobin rose from 11.0 to 11.7 g/dL, 12 weeks after initiating IV iron treatment of 1000 mg divided weekly over 5 weeks. We found early changes of iron loading after 1-2 IV iron dose: serum iron increased by 184 mcg/dL from a baseline of 66 mcg/dL, ferritin by 184 ng/mL from 68 ng/mL, and hepcidin by 7.49 ng/mL from 19.2 ng/mL, while STfR and serum EPO declined by 0.55 mg/L and 3.5 mU/mL from 19.2 ng/mL and 14 mU/mL, respectively. The erythroid response and evidence of enhanced iron trafficking are consistent with the hypothesis that IV iron overcomes iron deficient or iron-restricted erythropoiesis. These data provide new insight that iron-restricted erythropoiesis is a potential and targetable mechanism for patients diagnosed with unexplained anemia of the elderly and offers support for larger prospective trials of IV iron among anemic older adults of low to normal ferritin.
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Affiliation(s)
- Justin J Yoo
- Duke University School of Medicine, Durham, NC, USA
| | - Harvey J Cohen
- Center for the Study of Aging, Duke University School of Medicine, Durham, NC, USA
| | - Andrew S Artz
- Department of Hematology, City of Hope Comprehensive Cancer Center, Duarte, CA, USA
| | - Elizabeth Price
- Division of Hematology, Stanford University Medical Center, Palo Alto, NC, USA
| | | | - Josef Prchal
- University of Utah School of Medicine, Salt Lake City, UT, USA
| | - Shelly Sapp
- Duke University School of Medicine, Clinical Research Institute, Durham, NC, USA
| | - Huiman Barnhart
- Duke University School of Medicine, Clinical Research Institute, Durham, NC, USA
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Mentz RJ, Anstrom KJ, Eisenstein EL, Sapp S, Greene SJ, Morgan S, Testani JM, Harrington AH, Sachdev V, Ketema F, Kim DY, Desvigne-Nickens P, Pitt B, Velazquez EJ. Effect of Torsemide vs Furosemide After Discharge on All-Cause Mortality in Patients Hospitalized With Heart Failure: The TRANSFORM-HF Randomized Clinical Trial. JAMA 2023; 329:214-223. [PMID: 36648467 PMCID: PMC9857435 DOI: 10.1001/jama.2022.23924] [Citation(s) in RCA: 55] [Impact Index Per Article: 55.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/18/2023]
Abstract
IMPORTANCE Although furosemide is the most commonly used loop diuretic in patients with heart failure, some studies suggest a potential benefit for torsemide. OBJECTIVE To determine whether torsemide results in decreased mortality compared with furosemide among patients hospitalized for heart failure. DESIGN, SETTING, AND PARTICIPANTS TRANSFORM-HF was an open-label, pragmatic randomized trial that recruited 2859 participants hospitalized with heart failure (regardless of ejection fraction) at 60 hospitals in the United States. Recruitment occurred from June 2018 through March 2022, with follow-up through 30 months for death and 12 months for hospitalizations. The final date for follow-up data collection was July 2022. INTERVENTIONS Loop diuretic strategy of torsemide (n = 1431) or furosemide (n = 1428) with investigator-selected dosage. MAIN OUTCOMES AND MEASURES The primary outcome was all-cause mortality in a time-to-event analysis. There were 5 secondary outcomes with all-cause mortality or all-cause hospitalization and total hospitalizations assessed over 12 months being highest in the hierarchy. The prespecified primary hypothesis was that torsemide would reduce all-cause mortality by 20% compared with furosemide. RESULTS TRANSFORM-HF randomized 2859 participants with a median age of 65 years (IQR, 56-75), 36.9% were women, and 33.9% were Black. Over a median follow-up of 17.4 months, a total of 113 patients (53 [3.7%] in the torsemide group and 60 [4.2%] in the furosemide group) withdrew consent from the trial prior to completion. Death occurred in 373 of 1431 patients (26.1%) in the torsemide group and 374 of 1428 patients (26.2%) in the furosemide group (hazard ratio, 1.02 [95% CI, 0.89-1.18]). Over 12 months following randomization, all-cause mortality or all-cause hospitalization occurred in 677 patients (47.3%) in the torsemide group and 704 patients (49.3%) in the furosemide group (hazard ratio, 0.92 [95% CI, 0.83-1.02]). There were 940 total hospitalizations among 536 participants in the torsemide group and 987 total hospitalizations among 577 participants in the furosemide group (rate ratio, 0.94 [95% CI, 0.84-1.07]). Results were similar across prespecified subgroups, including among patients with reduced, mildly reduced, or preserved ejection fraction. CONCLUSIONS AND RELEVANCE Among patients discharged after hospitalization for heart failure, torsemide compared with furosemide did not result in a significant difference in all-cause mortality over 12 months. However, interpretation of these findings is limited by loss to follow-up and participant crossover and nonadherence. TRIAL REGISTRATION ClinicalTrials.gov Identifier: NCT03296813.
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Affiliation(s)
- Robert J. Mentz
- Duke Clinical Research Institute, Durham, North Carolina
- Department of Medicine, Division of Cardiology, Duke University School of Medicine, Durham, North Carolina
| | - Kevin J. Anstrom
- Gillings School of Global Public Health, University of North Carolina at Chapel Hill
| | | | - Shelly Sapp
- Duke Clinical Research Institute, Durham, North Carolina
| | - Stephen J. Greene
- Duke Clinical Research Institute, Durham, North Carolina
- Department of Medicine, Division of Cardiology, Duke University School of Medicine, Durham, North Carolina
| | - Shelby Morgan
- Duke Clinical Research Institute, Durham, North Carolina
| | - Jeffrey M. Testani
- Department of Internal Medicine, Section of Cardiovascular Medicine, Yale School of Medicine, New Haven, Connecticut
| | | | - Vandana Sachdev
- Division of Cardiovascular Sciences, National Heart, Lung, and Blood Institute, Bethesda, Maryland
| | - Fassil Ketema
- Division of Cardiovascular Sciences, National Heart, Lung, and Blood Institute, Bethesda, Maryland
| | - Dong-Yun Kim
- Division of Cardiovascular Sciences, National Heart, Lung, and Blood Institute, Bethesda, Maryland
| | - Patrice Desvigne-Nickens
- Division of Cardiovascular Sciences, National Heart, Lung, and Blood Institute, Bethesda, Maryland
| | - Bertram Pitt
- Division of Cardiology, Department of Medicine, University of Michigan, Ann Arbor
| | - Eric J. Velazquez
- Department of Internal Medicine, Section of Cardiovascular Medicine, Yale School of Medicine, New Haven, Connecticut
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Eisenstein EL, Sapp S, Harding T, Harrington A, Velazquez EJ, Mentz RJ, Greene SJ, Sachdev V, Kim DY, Anstrom KJ. Ascertaining Death Events in a Pragmatic Clinical Trial: Insights From the TRANSFORM-HF Trial. J Card Fail 2022; 28:1563-1567. [PMID: 35181553 PMCID: PMC9378754 DOI: 10.1016/j.cardfail.2022.01.020] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/29/2021] [Revised: 01/17/2022] [Accepted: 01/30/2022] [Indexed: 11/16/2022]
Abstract
BACKGROUND Death ascertainment can be challenging for pragmatic clinical trials that limit site follow-up activities to usual clinical care. METHODS AND RESULTS We used blinded aggregate data from the ongoing ToRsemide comparison with furoSemide FOR Management of Heart Failure (TRANSFORM-HF) pragmatic clinical trial in patients with heart failure to evaluate the agreement between centralized call center death event identification and the United States National Death Index (NDI). Of 2284 total patients randomized through April 12, 2021, 1480 were randomized in 2018-2019 and 804 in 2020-2021. The call center identified 416 total death events (177 in 2018-2019 and 239 in 2020-2021). The NDI 2018-2019 final file identified 178 death events, 165 of which were also identified by the call center. The study's inter-rater reliability metric (Cohen's kappa coefficient, 0.920; 95% confidence interval, 0.889-0.951) demonstrates a high level of agreement. The time between a death event and its identification was less for the call center (median, 47 days; interquartile range, 11-103 days) than for the NDI (median, 270 days; interquartile range, 186-391 days). CONCLUSIONS There is substantial agreement between deaths identified by a centralized call center and the NDI. However, the time between a death event and its identification is significantly less for the call center.
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Affiliation(s)
| | - Shelly Sapp
- Duke Clinical Research Institute, Durham, North Carolina
| | - Tina Harding
- Duke Clinical Research Institute, Durham, North Carolina
| | | | - Eric J Velazquez
- Division of Cardiology, Yale University School of Medicine, New Haven, Connecticut
| | - Robert J Mentz
- Duke Clinical Research Institute, Durham, North Carolina
| | | | - Vandana Sachdev
- Division of Cardiovascular Sciences, National Heart, Lung, and Blood Institute, Bethesda, Maryland
| | - Dong-Yun Kim
- Division of Intramural Research, National Heart, Lung and Blood Institute, Bethesda, Maryland
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Dieni O, Clemm C, Sapp S, Reno K. 331: Understanding research and screening for social determinants of health in the cystic fibrosis community. J Cyst Fibros 2021. [DOI: 10.1016/s1569-1993(21)01755-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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Bailey J, Brown G, Corbera-Hincapie M, Clemm C, Dasenbrook E, Durham D, Oates G, Reno K, Sapp S, Schechter M, Robinson K. 337: Food insecurity in the cystic fibrosis care center network during COVID-19: Prevalence, screening, and interventions. J Cyst Fibros 2021. [DOI: 10.1016/s1569-1993(21)01761-6] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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Greene SJ, Velazquez EJ, Anstrom KJ, Eisenstein EL, Sapp S, Morgan S, Harding T, Sachdev V, Ketema F, Kim DY, Desvigne-Nickens P, Pitt B, Mentz RJ. Pragmatic Design of Randomized Clinical Trials for Heart Failure: Rationale and Design of the TRANSFORM-HF Trial. JACC Heart Fail 2021; 9:325-335. [PMID: 33714745 DOI: 10.1016/j.jchf.2021.01.013] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/03/2020] [Revised: 01/25/2021] [Accepted: 01/26/2021] [Indexed: 02/08/2023]
Abstract
Randomized clinical trials are the foundation of evidence-based medicine and central to practice guidelines and patient care decisions. Nonetheless, randomized trials in heart failure (HF) populations have become increasingly difficult to conduct and are frequently associated with slow patient enrollment, highly selected populations, extensive data collection, and high costs. The traditional model for HF trials has become particularly difficult to execute in the United States, where challenges to site-based research have frequently led to modest U.S. representation in global trials. In this context, the TRANSFORM-HF (Torsemide Comparison with Furosemide for Management of Heart Failure) trial aims to overcome traditional trial challenges and compare the effects of torsemide versus furosemide among patients with HF in the United States. Loop diuretic agents are regularly used by most patients with HF and practice guidelines recommend optimal use of diuretic agents as key to a successful treatment strategy. Long-time clinical experience has contributed to dominant use of furosemide for loop diuretic therapy, although preclinical and small clinical studies suggest potential advantages of torsemide. However, due to the lack of appropriately powered clinical outcome studies, there is insufficient evidence to conclude that torsemide should be routinely recommended over furosemide. Given this gap in knowledge and the fundamental role of loop diuretic agents in HF care, the TRANSFORM-HF trial was designed as a prospective, randomized, event-driven, pragmatic, comparative-effectiveness study to definitively compare the effect of a treatment strategy of torsemide versus furosemide on long-term mortality, hospitalization, and patient-reported outcomes among patients with HF. (TRANSFORM-HF: ToRsemide compArisoN With furoSemide FORManagement of Heart Failure [TRANSFORM-HF]; NCT03296813).
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Affiliation(s)
- Stephen J Greene
- Duke Clinical Research Institute, Durham, North Carolina, USA; Division of Cardiology, Duke University School of Medicine, Durham, North Carolina, USA. https://twitter.com/SJGreene_md
| | - Eric J Velazquez
- Division of Cardiology, Yale University School of Medicine, New Haven, Connecticut, USA. https://twitter.com/ericjvelazquez
| | - Kevin J Anstrom
- Duke Clinical Research Institute, Durham, North Carolina, USA
| | | | - Shelly Sapp
- Duke Clinical Research Institute, Durham, North Carolina, USA
| | - Shelby Morgan
- Duke Clinical Research Institute, Durham, North Carolina, USA
| | - Tina Harding
- Duke Clinical Research Institute, Durham, North Carolina, USA
| | - Vandana Sachdev
- Division of Cardiovascular Sciences, National Heart, Lung, and Blood Institute, Bethesda, Maryland, USA
| | - Fassil Ketema
- Division of Cardiovascular Sciences, National Heart, Lung, and Blood Institute, Bethesda, Maryland, USA
| | - Dong-Yun Kim
- Division of Cardiovascular Sciences, National Heart, Lung, and Blood Institute, Bethesda, Maryland, USA
| | - Patrice Desvigne-Nickens
- Division of Cardiovascular Sciences, National Heart, Lung, and Blood Institute, Bethesda, Maryland, USA
| | - Bertram Pitt
- Division of Cardiology, University of Michigan, Ann Arbor, Michigan, USA
| | - Robert J Mentz
- Duke Clinical Research Institute, Durham, North Carolina, USA; Division of Cardiology, Duke University School of Medicine, Durham, North Carolina, USA.
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Tyson CC, Barnhart H, Sapp S, Poon V, Lin PH, Svetkey LP. Ambulatory blood pressure in the dash diet trial: Effects of race and albuminuria. J Clin Hypertens (Greenwich) 2018; 20:308-314. [PMID: 29384243 DOI: 10.1111/jch.13170] [Citation(s) in RCA: 6] [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] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/04/2017] [Revised: 10/05/2017] [Accepted: 10/20/2017] [Indexed: 12/27/2022]
Abstract
We evaluated whether low-grade albuminuria or black race modulates ambulatory blood pressure (BP) or nocturnal BP response to the DASH diet. Among 202 adults enrolled in the DASH multicenter trial who were fed the DASH or control diet for 8 weeks, reductions in 24-hour daytime and nighttime SBP and DBP were significantly larger for DASH compared to control. Median changes in nocturnal BP dipping were not significant. Compared to urine albumin excretion of <7 mg/d, ≥7 mg/d was associated with larger significant median reductions in 24-hour SBP (-7.3 vs -3.1 mm Hg), all measures of DBP (24-hour: -5.9 vs -1.8 mm Hg; daytime: -9.9 vs -4.0 mm Hg; nighttime -9.0 vs -2.0 mm Hg), and with increased nocturnal SBP dipping (2.3% vs -0.5%). Black race was associated with larger median reduction in 24-hour SBP only (-5.5 vs -2.4 mm Hg). This analysis suggests greater effect of DASH on ambulatory BP in the presence of low-grade albuminuria.
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Affiliation(s)
- Crystal C Tyson
- Division of Nephrology, Department of Medicine, Duke University School of Medicine, Durham, NC, USA
| | | | - Shelly Sapp
- Duke Clinical Research Institute, Durham, NC, USA
| | - Victor Poon
- Duke Clinical Research Institute, Durham, NC, USA
| | - Pao-Hwa Lin
- Division of Nephrology, Department of Medicine, Duke University School of Medicine, Durham, NC, USA.,Sarah W. Stedman Nutrition & Metabolism Center, Duke University, Durham, NC, USA
| | - Laura P Svetkey
- Division of Nephrology, Department of Medicine, Duke University School of Medicine, Durham, NC, USA.,Sarah W. Stedman Nutrition & Metabolism Center, Duke University, Durham, NC, USA
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Kolls B, Sapp S, Hiatt W, Norgren L, Berger J, Rockhold F, Katona B, Blomster J, Jones W, Patel M, Mahaffey K. P5198The occurrence of stroke and TIA in patients with peripheral artery disease and the effect of ticagrelor versus clopidogrel in EUCLID. Eur Heart J 2017. [DOI: 10.1093/eurheartj/ehx493.p5198] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
Affiliation(s)
- B. Kolls
- Duke University Medical Center, Durham, United States of America
| | - S. Sapp
- Duke University Medical Center, Duke Clinical Research Institute, Durham, United States of America
| | - W.R. Hiatt
- University of Colorado School of Medicine and CPC Clinical Research, Aurora, United States of America
| | | | - J.S. Berger
- New York University School of Medicine, New York, United States of America
| | - F.W. Rockhold
- Duke University Medical Center, Duke Clinical Research Institute, Durham, United States of America
| | - B.G. Katona
- AstraZeneca Gaithersburg, Gaithersburg, United States of America
| | | | - W.S. Jones
- Duke University Medical Center, Duke Clinical Research Institute, Durham, United States of America
| | - M.R. Patel
- Duke University Medical Center, Duke Clinical Research Institute, Durham, United States of America
| | - K.W. Mahaffey
- Stanford University School of Medicine, Stanford, United States of America
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Tyson CC, Lin PH, Corsino L, Batch BC, Allen J, Sapp S, Barnhart H, Nwankwo C, Burroughs J, Svetkey LP. Short-term effects of the DASH diet in adults with moderate chronic kidney disease: a pilot feeding study. Clin Kidney J 2016; 9:592-8. [PMID: 27478603 PMCID: PMC4957723 DOI: 10.1093/ckj/sfw046] [Citation(s) in RCA: 40] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/15/2016] [Accepted: 05/02/2016] [Indexed: 11/21/2022] Open
Abstract
Background Although the Dietary Approaches to Stop Hypertension (DASH) diet lowers blood pressure (BP) for adults with normal kidney function, evidence is lacking regarding its safety and efficacy in chronic kidney disease (CKD). We aimed to test the effects of the DASH diet on serum electrolytes and BP in adults with moderate CKD. Methods In a prospective before–after feeding study, 11 adults with an estimated glomerular filtration rate of 30–59 mL/min/1.73 m2 and medication-treated hypertension were provided a reduced-sodium, run-in diet for 1 week followed by a reduced-sodium, DASH diet for 2 weeks. Changes in serum electrolytes and BP were compared pre–post DASH. Results Eleven participants underwent feeding; 1 completed 1 week and 10 completed 2 weeks of DASH. Compared with baseline, DASH modestly increased serum potassium at 1 week (mean ± standard deviation, +0.28 ± 0.4 mg/dL; P = 0.043) but had no significant effect on potassium at 2 weeks (+0.15 ± 0.28 mg/dL; P = 0.13). Serum bicarbonate was reduced (−2.5 ± 3.0 mg/dL; P = 0.03) at 2 weeks. Neither incident hyperkalemia nor new onset metabolic acidosis was observed. Clinic BP and mean 24-h ambulatory BP was unchanged. DASH significantly reduced mean nighttime BP (−5.3 ± 5.8 mmHg; P = 0.018), and enhanced percent declines in both nocturnal systolic BP (−2.1% to −5.1%; P = 0.004) and diastolic BP (−3.7% to −10.0%; P = 0.008). Conclusions These pilot data suggest that a reduced-sodium DASH dietary pattern does not cause acute metabolic events in adults with moderate CKD and may improve nocturnal BP. Definitive studies are needed to determine long-term effects of DASH in CKD.
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Affiliation(s)
| | - Pao-Hwa Lin
- Department of Medicine, Duke University, Durham, NC, USA; Sarah W. Stedman Nutrition & Metabolism Center, Duke University Medical Center, Durham, NC, USA
| | - Leonor Corsino
- Department of Medicine , Duke University , Durham, NC , USA
| | - Bryan C Batch
- Department of Medicine , Duke University , Durham, NC , USA
| | - Jenifer Allen
- Sarah W. Stedman Nutrition & Metabolism Center , Duke University Medical Center , Durham, NC , USA
| | - Shelly Sapp
- Duke Clinical Research Institute , Durham, NC , USA
| | | | - Chinazo Nwankwo
- Sarah W. Stedman Nutrition & Metabolism Center , Duke University Medical Center , Durham, NC , USA
| | - Jasmine Burroughs
- Sarah W. Stedman Nutrition & Metabolism Center , Duke University Medical Center , Durham, NC , USA
| | - Laura P Svetkey
- Department of Medicine, Duke University, Durham, NC, USA; Sarah W. Stedman Nutrition & Metabolism Center, Duke University Medical Center, Durham, NC, USA
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Price E, Artz AS, Barnhart H, Sapp S, Chelune G, Ershler WB, Walston JD, Gordeuk VR, Berger NA, Reuben D, Prchal J, Rao SV, Roy CN, Supiano MA, Schrier SL, Cohen HJ. A prospective randomized wait list control trial of intravenous iron sucrose in older adults with unexplained anemia and serum ferritin 20-200 ng/mL. Blood Cells Mol Dis 2014; 53:221-30. [PMID: 25065855 DOI: 10.1016/j.bcmd.2014.06.003] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.1] [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: 03/05/2014] [Accepted: 06/30/2014] [Indexed: 10/25/2022]
Abstract
Anemia is common in older persons and is associated with substantial morbidity and mortality. One third of anemic older adults have unexplained anemia of the elderly (UAE). We carried out a randomized, wait list control trial in outpatients with UAE and serum ferritin levels between 20 and 200 ng/mL. Intravenous iron sucrose was given as a 200-mg weekly dose for 5 weeks either immediately after enrollment (immediate intervention group) or following a 12-week wait list period (wait list control group). The primary outcome measure was changed in 6-minute walk test (6MWT) distances from baseline to 12 weeks between the two groups. Hematologic, physical, cognitive, and quality of life parameters were also assessed. The study was terminated early after 19 subjects enrolled. The distance walked in the 6MWT increased a mean 8.05±55.48 m in the immediate intervention group and decreased a mean 11.45±49.46 m in the wait list control group (p=0.443). The hemoglobin increased a mean 0.39±0.46 g/dL in the immediate intervention group and declined a mean 0.39±0.85 g/dL in the wait list control group (p=0.026). Thus, a subgroup of adults with UAE may respond to intravenous iron. Enrollment of subjects into this type of study remains challenging.
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Affiliation(s)
- Elizabeth Price
- Division of Pulmonary and Critical Care Medicine, 300 Pasteur Drive, Room H3143, MC 5236 Stanford, CA 94305, USA.
| | - Andrew S Artz
- University of Chicago, 5841 S Maryland Ave., Chicago, IL 60637, USA.
| | - Huiman Barnhart
- Duke Clinical Research Institute, PO Box 17969, Durham, NC 27715, USA.
| | - Shelly Sapp
- Duke University Medical Center, Durham, NC 27710, USA.
| | - Gordon Chelune
- Center for Alzheimer's Care, Imaging and Research, University of Utah, Dept. of Neurology, 650 Komas Drive, Salt Lake City, UT 84108, USA.
| | - William B Ershler
- Institute for Advanced Studies in Aging, 6400 Arlington Blvd., Falls Church, VA 22042, USA.
| | - Jeremy D Walston
- Johns Hopkins University School of Medicine, 5501 Hopkins Bayview Circle, Baltimore, MD 21224, USA.
| | - Victor R Gordeuk
- University of Illinois at Chicago, Clinical Science North Bldg., 820S Wood St., Chicago, IL 60612, USA.
| | - Nathan A Berger
- Case Western Reserve University, 10900 Euclid Ave., Cleveland, OH 44106, USA.
| | - David Reuben
- University of California, Los Angeles Medical Center, 10945 Le Conte Ave., Los Angeles, CA 90095, USA.
| | - Josef Prchal
- University of Utah School of Medicine, 30 North 1900 East, Salt Lake City, UT 84132, USA.
| | - Sunil V Rao
- Duke University Medical Center, Durham VA Medical Center, 508 Fulton Street, Durham, NC 27705, USA.
| | - Cindy N Roy
- Johns Hopkins University School of Medicine, 5501 Hopkins Bayview Circle, Baltimore, MD 21224, USA.
| | - Mark A Supiano
- University of Utah School of Medicine, 30 North 1900 East, Salt Lake City, UT 84132, USA.
| | | | - Harvey Jay Cohen
- Duke University Medical Center, Center for the Study of Aging, Box 3003, Durham, NC 27710, USA.
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McCullough PA, Barnhart HX, Inrig JK, Reddan D, Sapp S, Patel UD, Singh AK, Szczech LA, Califf RM. Cardiovascular toxicity of epoetin-alfa in patients with chronic kidney disease. Am J Nephrol 2013; 37:549-58. [PMID: 23735819 DOI: 10.1159/000351175] [Citation(s) in RCA: 94] [Impact Index Per Article: 8.5] [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: 12/22/2012] [Accepted: 04/04/2013] [Indexed: 12/14/2022]
Abstract
BACKGROUND Recombinant erythropoietin has become a routine component of care of patients with chronic kidney disease reducing the need for blood transfusions but raising the risks for cardiovascular events. We undertook this secondary analysis of subjects enrolled in the Correction of Hemoglobin and Outcomes in Renal Insufficiency (CHOIR) trial to examine the interrelationships between epoetin-alfa maintenance doses utilized and achieved hemoglobin (Hb) irrespective of treatment target and randomized allocation. METHODS We performed a post hoc analysis from the CHOIR trial. Inclusion criteria were Hb <11.0 g/dl and estimated glomerular filtration rates of 15-50 ml/min/1.73 m(2). To be included in the present analysis, subjects needed to be free of the composite event at 4 months, receive epoetin-alfa, and have ≥1 postbaseline Hb measurement. The mean weekly dose of epoetin-alfa received up to the time of first event or censure was the main exposure variable, while the achieved Hb at month 4 was the confounder representing the subject's underlying response to treatment. The primary outcome was the composite of death, heart failure hospitalization, stroke, or myocardial infarction. A Cox proportional hazard regression model was used in time-to-event analysis. RESULTS Among 1,244 subjects with complete data, the average weekly dose of epoetin-alfa ranged 143.3-fold from 133 to 19,106 units/week at the time of first event or censure. Cox proportional hazard analysis found that those in the middle tertile of Hb achieved (>11.5 to <12.7 g/dl) and the lowest tertile of epoetin-alfa dose exposure level (<5,164 units/week) had the lowest risk. Irrespective of Hb achieved, the relative risk in the highest tertile (>10,095 units/week) of epoetin-alfa dose exposure level was significantly escalated (hazard ratios ranged from 2.536 to 3.572, p < 0.05, when compared to the group of middle Hb tertile and lowered dose tertile). In a multivariable model that adjusted for achieved Hb, albumin, cholesterol, age, prior heart failure, prior stroke, prior deep venous thrombosis, atrial fibrillation or malignancy, the average weekly dose had a significant (p = 0.005) relative risk of 1.067 per 1,000 units of epoetin-alfa for the primary end point. CONCLUSIONS In the CHOIR trial, average epoetin-alfa doses >10,095 units/week were associated with increased risks for cardiovascular events irrespective of the Hb achieved within the first 4 months of treatment. These data suggest the weekly epoetin-alfa dose and not the Hb achieved was a principal determinant in the primary outcome observed implicating a cardiovascular toxicity of this erythrocyte-stimulating agent.
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Inrig JK, Sapp S, Barnhart H, Patel UD, Reddan D, Singh A, Califf RM, Szczech L. Impact of higher hemoglobin targets on blood pressure and clinical outcomes: a secondary analysis of CHOIR. Nephrol Dial Transplant 2012; 27:3606-14. [PMID: 22573238 DOI: 10.1093/ndt/gfs123] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022] Open
Abstract
BACKGROUND Targeting a higher hemoglobin in patients with chronic kidney disease leads to adverse cardiovascular outcomes, yet the reasons remain unclear. Herein, we sought to determine whether changes in erythropoiesis-stimulating agent (ESA) dose and in hemoglobin were predictive of changes in blood pressure (BP) and whether these changes were associated with cardiovascular outcomes. METHODS In this secondary analysis of 1421 Correction of Hemoglobin and Outcomes in Renal Disease (CHOIR) participants, mixed model analyses were used to describe monthly changes in ESA dose and hemoglobin with changes in diastolic BP (DBP) and systolic BP (SBP). Poisson modeling was performed to determine whether changes in hemoglobin and BP were associated with the composite end point of death or cardiovascular outcomes. RESULTS Monthly average DBP, but not SBP, was higher in participants in the higher hemoglobin arm. Increases in ESA doses and in hemoglobin were significantly associated with linear increases in DBP, but not consistently with increases in SBP. In models adjusted for demographics and comorbid conditions, increases in ESA dose (>0 U) and larger increases in hemoglobin (>1.0 g/dL/month) were associated with poorer outcomes [event rate ratio per 1000 U weekly dose per month increase 1.05, (1.02-1.08), P = 0.002 and event rate ratio 1.70 (1.02-2.85), P = 0.05, respectively]. However, increasing DBP was not associated with adverse outcomes [event rate ratio 1.01 (0.98-1.03), P = 0.7]. CONCLUSION Among CHOIR participants, higher hemoglobin targets, increases in ESA dose and in hemoglobin were associated both with increases in DBP and with higher event rates; however, increasing DBP was not associated with adverse outcomes.
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Affiliation(s)
- Jula K Inrig
- Department of Medicine, Renal Division, Duke University Medical Center, Durham, NC, USA.
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Inrig JK, Barnhart HX, Reddan D, Patel UD, Sapp S, Califf RM, Singh AK, Szczech LA. Effect of hemoglobin target on progression of kidney disease: a secondary analysis of the CHOIR (Correction of Hemoglobin and Outcomes in Renal Insufficiency) trial. Am J Kidney Dis 2012; 60:390-401. [PMID: 22537421 DOI: 10.1053/j.ajkd.2012.03.009] [Citation(s) in RCA: 38] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/27/2011] [Accepted: 03/13/2012] [Indexed: 01/19/2023]
Abstract
BACKGROUND Conflicting relationships have been described between anemia correction using erythropoiesis-stimulating agents and progression of chronic kidney disease (CKD). This study was undertaken to examine the impact of target hemoglobin level on progression of kidney disease in the CHOIR (Correction of Hemoglobin and Outcomes in Renal Insufficiency) trial. STUDY DESIGN Secondary analysis of a randomized controlled trial. SETTING & PARTICIPANTS 1,432 participants with CKD and anemia. INTERVENTION Participants were randomly assigned to target hemoglobin levels of 13.5 versus 11.3 g/dL with the use of epoetin alfa. OUTCOMES & MEASUREMENTS Cox regression was used to estimate HRs for progression of CKD (a composite of doubling of creatinine level, initiation of renal replacement therapy, or death). Interactions between hemoglobin target and select baseline variables (estimated glomerular filtration rate, proteinuria, diabetes, heart failure, and smoking history) also were examined. RESULTS Participants randomly assigned to higher hemoglobin targets experienced shorter time to progression of kidney disease in both univariate (HR, 1.25; 95% CI, 1.03-1.52; P = 0.02) and multivariable models (HR, 1.22; 95% CI, 1.00-1.48; P = 0.05). These differences were attributable to higher rates of renal replacement therapy and death for participants in the high hemoglobin arm. Hemoglobin target did not interact with estimated glomerular filtration rate, proteinuria, diabetes, or heart failure (P > 0.05 for all). In the multivariable model, hemoglobin target interacted with tobacco use (P = 0.04) such that the higher target had a greater risk of CKD progression for participants who currently smoked (HR, 2.50; 95% CI, 1.23-5.09; P = 0.01), which was not present for those who did not currently smoke (HR, 1.15; 95% CI, 0.93-1.41; P = 0.2). LIMITATIONS A post hoc analysis; thus, cause and effect cannot be determined. CONCLUSIONS These results suggest that a high hemoglobin target is associated with a greater risk of progression of CKD. This risk may be augmented by concurrent smoking. Further defining the mechanism of injury may provide insight into methods to optimize outcomes in anemia management.
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Affiliation(s)
- Jula K Inrig
- Renal Division, University of Texas Southwestern, Dallas, TX 75390-8523, USA.
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Szczech LA, Barnhart HX, Inrig JK, Reddan DN, Sapp S, Califf RM, Patel UD, Singh AK. Secondary analysis of the CHOIR trial epoetin-alpha dose and achieved hemoglobin outcomes. Kidney Int 2008; 74:791-8. [PMID: 18596733 DOI: 10.1038/ki.2008.295] [Citation(s) in RCA: 391] [Impact Index Per Article: 24.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
Abstract
Trials of anemia correction in chronic kidney disease have found either no benefit or detrimental outcomes of higher targets. We did a secondary analysis of patients with chronic kidney disease enrolled in the Correction of Hemoglobin in the Outcomes in Renal Insufficiency trial to measure the potential for competing benefit and harm from achieved hemoglobin and epoetin dose trials. In the 4 month analysis, significantly more patients in the high-hemoglobin compared to the low-hemoglobin arm were unable to achieve target hemoglobin and required high-dose epoetin-alpha. In unadjusted analyses, the inability to achieve a target hemoglobin and high-dose epoetin-alpha were each significantly associated with increased risk of a primary endpoint (death, myocardial infarction, congestive heart failure or stroke). In adjusted models, high-dose epoetin-alpha was associated with a significant increased hazard of a primary endpoint but the risk associated with randomization to the high hemoglobin arm did not suggest a possible mediating effect of higher target via dose. Similar results were seen in the 9 month analysis. Our study demonstrates that patients achieving their target had better outcomes than those who did not; and among subjects who achieved their randomized target, no increased risk associated with the higher hemoglobin goal was detected. Prospective studies are needed to confirm this relationship and determine safe dosing algorithms for patients unable to achieve target hemoglobin.
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Affiliation(s)
- Lynda A Szczech
- Department of Medicine, The Renal Division, Duke University Medical Center, Durham, North Carolina, USA.
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Singh AK, Szczech L, Tang KL, Barnhart H, Sapp S, Wolfson M, Reddan D. Anaemia of CKD--the CHOIR study revisited. Nephrol Dial Transplant 2007; 22:1806-10. [PMID: 17420166 DOI: 10.1093/ndt/gfm185] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
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Abstract
BACKGROUND Anemia, a common complication of chronic kidney disease, usually develops as a consequence of erythropoietin deficiency. Recombinant human erythropoietin (epoetin alfa) is indicated for the correction of anemia associated with this condition. However, the optimal level of hemoglobin correction is not defined. METHODS In this open-label trial, we studied 1432 patients with chronic kidney disease, 715 of whom were randomly assigned to receive a dose of epoetin alfa targeted to achieve a hemoglobin level of 13.5 g per deciliter and 717 of whom were assigned to receive a dose targeted to achieve a level of 11.3 g per deciliter. The median study duration was 16 months. The primary end point was a composite of death, myocardial infarction, hospitalization for congestive heart failure (without renal replacement therapy), and stroke. RESULTS A total of 222 composite events occurred: 125 events in the high-hemoglobin group, as compared with 97 events in the low-hemoglobin group (hazard ratio, 1.34; 95% confidence interval, 1.03 to 1.74; P=0.03). There were 65 deaths (29.3%), 101 hospitalizations for congestive heart failure (45.5%), 25 myocardial infarctions (11.3%), and 23 strokes (10.4%). Seven patients (3.2%) were hospitalized for congestive heart failure and myocardial infarction combined, and one patient (0.5%) died after having a stroke. Improvements in the quality of life were similar in the two groups. More patients in the high-hemoglobin group had at least one serious adverse event. CONCLUSIONS The use of a target hemoglobin level of 13.5 g per deciliter (as compared with 11.3 g per deciliter) was associated with increased risk and no incremental improvement in the quality of life. (ClinicalTrials.gov number, NCT00211120 [ClinicalTrials.gov].).
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Affiliation(s)
- Ajay K Singh
- Renal Division, Brigham and Women's Hospital and Harvard Medical School, Boston, MA 02115, USA.
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Quinn MJ, Aronow HD, Califf RM, Bhatt DL, Sapp S, Kleiman NS, Harrington RA, Kong DF, Kandzari DE, Topol EJ. Aspirin dose and six-month outcome after an acute coronary syndrome. J Am Coll Cardiol 2004; 43:972-8. [PMID: 15028352 DOI: 10.1016/j.jacc.2003.09.059] [Citation(s) in RCA: 34] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/09/2003] [Revised: 09/12/2003] [Accepted: 09/29/2003] [Indexed: 11/17/2022]
Abstract
OBJECTIVES This study was designed to compare the efficacy of low and intermediate aspirin doses in acute coronary syndromes. BACKGROUND Little is known of the comparative efficacy of low and intermediate aspirin doses in this setting. METHODS We compared six-month death, myocardial infarction (MI), and stroke in patients with unstable angina or acute MI discharged while receiving low (<150 mg) or intermediate (> or =150 mg) aspirin therapy in the GUSTO IIb and PURSUIT trials (n = 20,521). We used multivariable analysis and performed a propensity analysis in order to adjust for baseline imbalances between the groups. RESULTS Aspirin doses <150 mg were prescribed to 29.9% (6,128) of patients. By six months, 6.4% of the patients (1,310 of 20,521) had a primary event, 6.2% of the patients receiving <150 mg and 6.6% of the patients receiving aspirin doses > or =150 mg (hazard ratio [HR] 1.06 [95% confidence interval (CI) 0.94 to 1.19], p = 0.35). After adjusting for baseline imbalances and the propensity score for discharge aspirin dose, there was no effect of aspirin dose on the composite end point at six months (HR 0.92 [95% CI 0.79 to 1.07], p = 0.28). However, the higher aspirin dose was associated with a reduction in six-month MI (HR 0.79 [95% CI 0.64 to 0.98], p = 0.03). The outcome was similar when patients were matched on the basis of the propensity score for aspirin dose (HR for death/MI/stroke 0.94 [95% CI 0.80 to 1.12], p = 0.51), although stroke occurred significantly more frequently among patients receiving the higher aspirin dose (HR 1.74 [95% CI 1.01 to 3.02] p = 0.05) and the effect on MI was no longer apparent. CONCLUSIONS Although these data are non-randomized, they suggest that the aspirin dose upon discharge may influence the clinical course after unstable angina or acute MI.
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Ellis K, Tcheng JE, Sapp S, Topol EJ, Lincoff AM. Mortality Benefit of Beta Blockade in Patients with Acute Coronary Syndromes Undergoing Coronary Intervention:. J Interv Cardiol 2003; 16:299-305. [PMID: 14562669 DOI: 10.1034/j.1600-6143.2003.08062.x] [Citation(s) in RCA: 44] [Impact Index Per Article: 2.1] [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: 11/23/2022] Open
Abstract
The effects of beta blocker therapy in the settings of heart failure and coronary artery disease have been well described, although little data exist in patients presenting with acute coronary syndromes undergoing percutaneous coronary intervention. The current study will attempt to evaluate the efficacy of beta blocker therapy in this setting. Pooled data from five randomized, controlled trials of abciximab during coronary intervention were used to analyze the clinical efficacy of beta blocker therapy. The pooled analysis evaluated the end points of all-cause mortality, myocardial infarction, repeat revascularization, and the combined endpoint of death and myocardial infarction in 2,894 patients. At 30 days, death occurred in 12 of 1,939 (0.6%) patients receiving beta blocker therapy and in 19 of 955 (2.0%) patients not receiving beta blocker therapy, (P < 0.001). At 6 months, death occurred in 33 of 1,939 (1.7%) patients receiving beta blocker therapy and 35 of 955 (3.7%) not receiving beta blocker therapy, (P < 0.001). After creating a propensity model and adjusting for variables predictive of mortality in the multivariable analysis, beta blocker therapy continued to be associated with a significant reduction in mortality. The findings were similar to those shown for the effects of beta blocker therapy in separate subgroups of patients with unstable angina and acute myocardial infarction. This analysis demonstrates a lower short-term mortality in patients receiving beta blocker therapy who undergo percutaneous coronary intervention for unstable angina or acute myocardial infarction.
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Affiliation(s)
- Keith Ellis
- Department of Cardiovascular Medicine, Cleveland Clinic Foundation, 9500 Euclid Avenue, Cleveland, OH 44195, USA
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Khot UN, Khot MB, Bajzer CT, Sapp S, Ohman E, Brener SJ, Ellis SG, Topol EJ. The eminently preventable pattern of coronary heart disease: Focus on the four conventional risk factors. J Am Coll Cardiol 2003. [DOI: 10.1016/s0735-1097(03)82096-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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Topol EJ, Lincoff AM, Kereiakes DJ, Kleiman NS, Cohen EA, Ferguson JJ, Tcheng JE, Sapp S, Califf RM. Multi-year follow-up of abciximab therapy in three randomized, placebo-controlled trials of percutaneous coronary revascularization. Am J Med 2002; 113:1-6. [PMID: 12106616 DOI: 10.1016/s0002-9343(02)01145-2] [Citation(s) in RCA: 89] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
Abstract
There is considerable evidence supporting the use of platelet glycoprotein IIb/IIIa inhibitors to reduce ischemic complications of percutaneous coronary revascularization. However, long-term follow-up has been limited. In three large-scale randomized trials that tested abciximab at a uniform bolus dose and 12-hour infusion against placebo, in a double-blind fashion, a total of 5799 patients had their long-term follow-up vital status determined at a minimum of 7 years (EPIC), 4.5 years (EPILOG), or 3 years (EPISTENT) after randomization (median, 4.8 years). The prespecified primary endpoint was all-cause mortality by intention-to-treat analysis at 3 years in patients randomly assigned to a common intervention. Follow-up for 5603 of the 5799 patients was 96.6% complete at 3 years; 320 deaths had occurred by that time. After 3 years of follow-up, mortality was 6.4% in the placebo groups and 5.0% in the abciximab groups (hazard ratio [HR] = 0.78; 95% confidence interval [CI]: 0.63 to 0.98; P = 0.03). A similar reduction in mortality was observed on an intention-to-treat basis when all follow-up information was utilized after a median of 4.8 years of follow-up (n = 652 deaths): 12.6% in the placebo groups and 10.2% in the abciximab groups (HR = 0.82; 95% CI: 0.70 to 0.96; P = 0.01).Abciximab treatment reduced all-cause mortality by about 20% during long-term follow-up after percutaneous coronary intervention. The findings were similar in magnitude and consistent in direction for each of the three trials, and the absolute survival benefit appeared to increase over time. Brief intervention with this monoclonal antibody during percutaneous coronary revascularization is associated with significant improvement of long-term survival.
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Affiliation(s)
- Eric J Topol
- Cleveland Clinic Foundation, 9500 Euclid Avenue, Cleveland, OH 44195, USA.
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22
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Mazur W, Kaluza GL, Sapp S, Balog C, Topol EJ, Mark DB, Ellis SG, Kereiakes DJ, Lincoff AM, Kleiman NS. Glycoprotein IIb-IIIa inhibition with abciximab and postprocedural risk assessment: lessons from the evaluation of platelet IIb/IIIa inhibitor for stenting trial and implication for ad hoc use of glycoprotein IIb-IIIa antagonists. Am Heart J 2002; 143:594-601. [PMID: 11923795 DOI: 10.1067/mhj.2002.121519] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
BACKGROUND Angiographic features of vessels in which stents have been deployed can be used to predict the risk of postprocedural ischemic events. The purpose of this study was to compare the effects of abciximab in patients with and without high-risk postprocedure features. METHODS AND RESULTS Protocol-mandated stent implantation was performed in 1586 patients in the Evaluation of Platelet IIb/IIIa Inhibitor for Stenting trial, 783 of whom received abciximab, and was successful in 97% of the patients. High-risk features were defined as the presence of Thrombolysis In Myocardial Infarction (TIMI) flow <3, presence of thrombus or major dissection, or residual stenosis >10%. The primary endpoint was a composite of death, myocardial infarction, and urgent target vessel revascularization at 30 days. High-risk features were present in 21% of the patients. In patients without high-risk features after stent placement, abciximab reduced the primary endpoint from 9.0% to 3.9% (P <.001) compared with 16.2% to 8.6% (P =.046) in patients in whom high-risk features were present. There was no statistical evidence of interaction between abciximab treatment and the presence or absence of high-risk features. CONCLUSION Glycoprotein IIb-IIIa antagonism with abciximab is equally effective in prevention of a composite of ischemic events in patients with and without high-risk features after stent placement. However, patients in whom high-risk features are present after stent placement are at increased risk of ischemic cardiac events even with abciximab treatment.
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Affiliation(s)
- Wojciech Mazur
- Baylor College of Medicine and the Methodist Hospital, Houston, Tex, USA
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Schoenhagen P, Crowe TD, Magyar WA, Sapp S, Popovich J, Vince GD, Nissen SE, Tuzcu ME. Variability of area measurements obtained with different intravascular ultrasound catheter systems: impact on clinical trials and a method for accurate calibration. J Am Coll Cardiol 2002. [DOI: 10.1016/s0735-1097(02)80153-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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Sekaran NK, Moliterno DJ, Ferguson JJ, Every N, Anderson HV, Aguirre FV, French WJ, Sapp S, Booth JE, Granger CB, Cannon CP. "Hot" unstable angina--is it worse than subacute unstable angina? Results from the GUARANTEE Registry. J Thromb Thrombolysis 2001; 12:207-16. [PMID: 11981103 DOI: 10.1023/a:1015218923360] [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] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Abstract
BACKGROUND AND METHODS Because time to presentation to the hospital affects time to treatment and is known to be important in acute myocardial infarction, we evaluated this variable in patients with unstable angina/non-ST segment elevation myocardial infarction (UA/NSTEMI). Among 2909 consecutive patients with UA/NSTEMI admitted to 35 hospitals in 6 geographic regions of the United States, we compared patients with acute (onset of pain <12 hours before admission) and subacute (onset >12 hours) unstable angina. RESULTS Patients with "hot" (acute) unstable angina presented more often to the emergency department and were subsequently admitted more often to an intensive care unit. Hospital administration of medications did not differ between the two groups, with the exception of heparin, which was paradoxically used more often in subacute patients (p<0.001). All cardiac invasive procedures were undertaken less often in the acute patients (catheterization, 41.4% vs. 58.7%, p=0.001; percutaneous coronary intervention, 11.3% vs. 21.1%, p=0.001; coronary artery bypass grafting, 5.6% vs. 12.0%, p=0.001). A greater percentage of acute patients were found to have no significant coronary artery disease at cardiac catheterization (20.1% vs. 15.0%, p=0.006). Mortality did not differ between the two groups; however, the composite endpoint of death and MI favored the acute patients (1.3% vs. 2.2%, p=0.032). CONCLUSIONS Contrary to our initial hypothesis, "hot" UA patients tended to be at lower risk than patients with subacute presentation, highlighting the fact that patients with UA/NSTEMI remain at high risk even after the initial 12-hour period.
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Affiliation(s)
- N K Sekaran
- Harvard Medical School, and Brigham and Women's Hospital, Boston, MA 02115, USA
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Chew DP, Bhatt DL, Sapp S, Topol EJ. Increased mortality with oral platelet glycoprotein IIb/IIIa antagonists: a meta-analysis of phase III multicenter randomized trials. Circulation 2001; 103:201-6. [PMID: 11208677 DOI: 10.1161/01.cir.103.2.201] [Citation(s) in RCA: 266] [Impact Index Per Article: 11.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
BACKGROUND Numerous clinical trials have established the benefits of intravenous glycoprotein IIb/IIIa inhibition in the management of coronary artery disease. In contrast, the recent large-scale, placebo-controlled, randomized trials of the oral glycoprotein IIb/IIIa antagonists have failed to provide commensurate reductions in late composite ischemic end points despite potent inhibition of platelet aggregation. METHODS AND RESULTS The ORs for death, myocardial infarction, urgent revascularization, and major bleeding from the 4 large-scale, placebo-controlled, randomized trials with oral glycoprotein IIb/IIIa inhibitors were calculated and combined. Stratification by low-dose or high-dose therapy and the use of concurrent aspirin was also undertaken. In 33 326 patients followed for >30 days, a consistent and statistically significant increase in mortality was observed with oral glycoprotein IIb/IIIa therapy (OR, 1.37; 95% CI, 1.13 to 1.66; P:=0.001). This effect was evident regardless of aspirin coadministration and treatment with either low-dose or high-dose therapy. Although a reduction in urgent revascularization was observed with oral glycoprotein IIb/IIIa inhibition, pooled analysis favored an increase in myocardial infarction that did not demonstrate statistical significance. CONCLUSIONS Although we found a highly significant excess in mortality consistent across 4 trials with 3 different oral glycoprotein IIb/IIIa inhibitor agents, this was associated with a reduction in the need for urgent revascularization and no increase in myocardial infarction. These findings suggest the potential for a direct toxic effect with these agents and argue against a prothrombotic mechanism. Further investigation to elucidate the cause of this increased fatality risk is warranted.
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Affiliation(s)
- D P Chew
- Department of Cardiology, Cleveland Clinic Foundation, Cleveland, Ohio 44195, USA
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Topol EJ, Ohman EM, Armstrong PW, Wilcox R, Skene AM, Aylward P, Simes J, Dalby A, Betriu A, Bode C, White HD, Hochman JS, Emanuelson H, Vahanian A, Sapp S, Stebbins A, Moliterno DJ, Califf RM. Survival outcomes 1 year after reperfusion therapy with either alteplase or reteplase for acute myocardial infarction: results from the Global Utilization of Streptokinase and t-PA for Occluded Coronary Arteries (GUSTO) III Trial. Circulation 2000; 102:1761-5. [PMID: 11023929 DOI: 10.1161/01.cir.102.15.1761] [Citation(s) in RCA: 32] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
BACKGROUND New recombinant plasminogen activators have been developed to simulate the fibrinolytic action of the physiological serine protease tissue plasminogen activator (alteplase, t-PA), and have prolonged half-life features permitting bolus administration. One such activator, reteplase (r-PA), was compared with t-PA in the Global Utilization of Streptokinase and t-PA for Occluded Coronary Arteries (GUSTO)-III Trial. METHODS AND RESULTS At 1-year follow-up, survival status was ascertained in 97.4% of the 15 059 patients enrolled in the GUSTO-III trial. At 1 year, the mortality rate for the t-PA-assigned group was 11.06%, and for r-PA it was 11.20% (P:=0. 77). The absolute mortality difference of 0.14% has 95% CIs of -1. 21% to 0.93%. There were no significant differences in outcome by intention-to-treat for the 2 different plasminogen activators in the prespecified groups (age, infarct location, time-to-treatment). The absolute difference in mortality rates between t-PA and r-PA progressively narrowed over the predetermined observation times after random assignment; it was 0.31% at 24 hours, 0.26% at 7 days, 0.23% at 30 days, and 0.14% at 1 year. Of note, mortality rate in the trial between 30 days and 1 year in 13 883 patients was 4.02% and did not differ between the treatment groups. However, this mortality rate was substantially greater than in GUSTO-I, in which mortality rate for t-PA versus streptokinase between 30 days and 1-year was 2.97% (heart rate 1.36, 95% CI 1.23, 1.50, P:<0.001). CONCLUSIONS The r-PA and t-PA strategies yielded similar survival outcomes after 30 days in this trial. The increase in mortality rate during extended follow-up compared with previous trials may reflect higher-risk patients and highlights the need for improved secondary prevention strategies.
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Affiliation(s)
- E J Topol
- Cleveland Clinic Foundation, Cleveland, Ohio 44195, USA.
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Topol EJ, Mark DB, Lincoff AM, Cohen E, Burton J, Kleiman N, Talley D, Sapp S, Booth J, Cabot CF, Anderson KM, Califf RM. Outcomes at 1 year and economic implications of platelet glycoprotein IIb/IIIa blockade in patients undergoing coronary stenting: results from a multicentre randomised trial. EPISTENT Investigators. Evaluation of Platelet IIb/IIIa Inhibitor for Stenting. Lancet 1999; 354:2019-24. [PMID: 10636365 DOI: 10.1016/s0140-6736(99)10018-7] [Citation(s) in RCA: 238] [Impact Index Per Article: 9.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
BACKGROUND We assessed in a randomised trial the long-term outcomes for potent adjunctive antiplatelet therapy given at the time of coronary stenting. METHODS In 63 hospitals in the USA and Canada, 2399 patients were randomly assigned stenting with abciximab, stenting with placebo, or balloon angioplasty with abciximab. Standard adjunctive therapy with aspirin, ticlopidine, and heparin was used. The major outcomes of death and myocardial infarction were assessed at 1-year follow-up by intention to treat. We also investigated the 1-year cost-effectiveness of combined stenting and abciximab therapy. FINDINGS At 1-year follow-up, eight (1.0%) of 794 patients in the stent plus abciximab group had died, compared with 19 (2.4%) of 809 in the stent plus placebo group (hazard ratio 0.43 [95% CI 0.19-0.97], p=0.037). The combined endpoint of death or large myocardial infarction occurred in 42 (5.3%) and 89 (11.0%), respectively (0.46 [0.32-0.67], p<0.001). By multivariate modelling, the factors independently associated with improved survival were assignment to stenting with abciximab (p=0.027) and greater preprocedural stenosis (p=0.002); those associated with worse survival were age greater than 70 years (p<0.001), previous heart failure (p=0.001), diabetes treated with insulin (p=0.02), and postprocedural occlusion (p<0.001). Relative to stenting plus placebo and balloon angioplasty plus abciximab, the incremental 1-year costs of stenting plus abciximab were US$581 and $932. The corresponding cost-effectiveness ratios were US$5291 and $6213 per added life-year. INTERPRETATION Coronary stenting with abciximab, compared with stenting alone or balloon angioplasty with abciximab, is associated with improved survival and is an economically attractive therapy by conventional standards.
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Affiliation(s)
- E J Topol
- Department of Cardiology, Cleveland Clinic Foundation, OH 44195, USA.
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Abstract
Although theology is often seen as impractical speculation on unimportant matters, it serves as a necessary foundation--and provides valuable guidance--for chaplains who must provide pastoral care to persons with dementia and their families. Theology can help us "to see things as God sees them." Among the theological doctrines found in the Hebrew-Christian scriptures and traditions that are particularly helpful are the following: human creation "in the image of God"; human nature as a psychophysical unity; the dependence of all persons upon God's mercy; the centrality of community; and God's judgment of personal worth by standards very different from those of "the world." A model for applying these concepts and some thoughts of the importance of chaplains are offered.
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Affiliation(s)
- S Sapp
- Department of Religious Studies, University of Miami, Coral Gables, FL, USA
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Every NR, Cannon CP, Granger C, Moliterno DJ, Aguirre FV, Talley JD, Booth J, Sapp S, Ferguson JJ. Influence of insurance type on the use of procedures, medications and hospital outcome in patients with unstable angina: results from the GUARANTEE Registry. Global Unstable Angina Registry and Treatment Evaluation. J Am Coll Cardiol 1998; 32:387-92. [PMID: 9708465 DOI: 10.1016/s0735-1097(98)00254-x] [Citation(s) in RCA: 28] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
OBJECTIVES The purpose of this study was to investigate whether or not there is an association between managed care insurance and the delivery and outcome of care in patients presenting with unstable angina. BACKGROUND The proportion of U.S. patients with managed care health insurance is increasing. This may be associated with recent improvements in the control of health care costs. It is unknown whether or not there is a difference in process of care in angina patients presenting with managed care versus fee-for-service health insurance. METHODS We compared baseline characteristics, process and outcome of care in 636 patients with managed care insurance (MC) and 1,404 patients with fee-for-service (FFS) insurance who presented with unstable angina to 35 hospitals participating in the global Unstable Angina Registry and Treatment Evaluation (GUARANTEE) Registry. RESULTS Although, there was little difference in baseline characteristics and hospital treatments between cohorts, MC patients were more likely to be discharged on guideline-recommended medications (aspirin and beta-adrenergic blocking agents). In addition, FFS patients were more likely to undergo cardiac catheterization (odds ratio = 1.25 95% confidence interval = 1.1 to 1.5), but not revascularization during the hospitalization. There was no difference in hospital mortality (0.9% versus 1.2% in MC versus FFS; p = 0.60). CONCLUSIONS In patients admitted with suspected unstable angina, MC patients are less likely to undergo coronary angiography, but are more likely to be discharged on indicated medications.
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Affiliation(s)
- N R Every
- Northwest Health Services Research and Development Program, Puget Sound Veteran's Administration Healthcare System, Seattle, Washington, USA.
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30
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James KB, Rodkey S, McCarthy PM, Thomas JD, Blackburn G, Sapp S, Vargo R, Lauer MS, Young JB. Exercise performance and chronotropic response in heart failure patients with implantable left ventricular assist devices. Am J Cardiol 1998; 81:1230-2. [PMID: 9604956 DOI: 10.1016/s0002-9149(98)00100-3] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
During metabolic stress testing, 9 of 20 patients with left ventricular assist devices exhibited a lag in peak device rate by < or = 85% of peak native heart rate (group I), with peak device rates of 118 +/- 9 beats/min compared with group II, in which peak device rate nearly equaled peak native rates. Peak systolic blood pressure was significantly greater in group II than group I, but there was no significant difference in peak oxygen consumption, anaerobic threshold, or peak flows.
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Affiliation(s)
- K B James
- Department of Cardiology, Cleveland Clinic Foundation, Ohio 44195, USA
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31
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Peterson J, Lauer M, Young J, Sapp S, Califf R, Topol E. Evidence for on adverse interaction between ACE inhibitors and aspirin following myocardial infarction: the GUSTO-I trial. J Am Coll Cardiol 1998. [DOI: 10.1016/s0735-1097(98)81060-7] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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Roe M, Moliterno D, Cannon C, Every N, Aquino F, Granger C, Sapp S, Booth J, Ferguson J. Improvements in the treatmant of elderly patients with unstable angina results from the GUARANTEE registry. J Am Coll Cardiol 1998. [DOI: 10.1016/s0735-1097(98)81983-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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James KB, McCarthy PM, Thomas JD, Vargo R, Hobbs RE, Sapp S, Bravo E. Effect of the implantable left ventricular assist device on neuroendocrine activation in heart failure. Circulation 1995; 92:II191-5. [PMID: 7586406 DOI: 10.1161/01.cir.92.9.191] [Citation(s) in RCA: 131] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/26/2023]
Abstract
BACKGROUND The HeartMate left ventricular assist device has been successfully used as a bridge to cardiac transplantation. Because many patients exhibit marked clinical improvement in their heart failure after HeartMate implantation, we studied the physiological effect of this device on the neurohormonal axis. METHODS AND RESULTS In 13 patients awaiting transplant (mean cardiac index, 1.7 +/- 0.3 L.min-1.m-2) who underwent HeartMate implantation, venous atrial natriuretic peptide, epinephrine, norepinephrine, plasma renin activity, angiotensin, and arginine vasopressin were measured immediately before insertion and at explant/transplantation. Mean time to explant was 86 +/- 40 days. All patients were taken off inotropic medications within 1 month. Mean cardiac index on support before explant was 3.1 +/- 0.9 L.min-1.m-2. Plasma renin activity decreased from 57 +/- 56 ng.mL-1.h-1 at baseline (before insertion) to 3 +/- 3 ng.mL-1.h-1 at explant (mean percent change, 92%; P < .001). Angiotensin II level decreased from 237 +/- 398 U/L at baseline to 14 +/- 14 U/L at explant (mean percent change, 73%; P < .001). Plasma epinephrine level fell from 6800 +/- 1323 pg/mL at baseline to 46 +/- 46 pg/mL at explant (mean percent change, 86%; P < .001). Norepinephrine level decreased from 2953 +/- 1457 pg/mL at baseline to 518 +/- 290 pg/mL at explant (mean percent change, 79%; P < .001). Atrial natriuretic peptide fell from baseline values of 227 +/- 196 to 168 +/- 40 pg/mL at explant (mean percent change, -49%; P = 519); and arginine vasopressin level decreased from 6 +/- 6 pg/mL at baseline to 0.8 +/- 0.5 pg/mL (mean percent change, 69%; P = .002). CONCLUSIONS We provide data supporting that the neurohormonal axis markedly improves after HeartMate implantation, providing biochemical confirmation of the improvement in hemodynamic status.
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Affiliation(s)
- K B James
- Department of Cardiology, Cleveland Clinic Foundation, OH 44195, USA
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Pilote L, Califf RM, Sapp S, Miller DP, Mark DB, Weaver WD, Gore JM, Armstrong PW, Ohman EM, Topol EJ. Regional variation across the United States in the management of acute myocardial infarction. GUSTO-1 Investigators. Global Utilization of Streptokinase and Tissue Plasminogen Activator for Occluded Coronary Arteries. N Engl J Med 1995; 333:565-72. [PMID: 7623907 DOI: 10.1056/nejm199508313330907] [Citation(s) in RCA: 250] [Impact Index Per Article: 8.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/26/2023]
Abstract
BACKGROUND Differences in the management of acute myocardial infarction have been reported among countries, but few studies have investigated this issue in regions of the United States. METHODS We compared the management of acute myocardial infarction among census regions across the United States, using data from the first Global Utilization of Streptokinase and Tissue Plasminogen Activator for Occluded Coronary Arteries trial (GUSTO-1) comprising 21,772 patients, and from the American Hospital Association. RESULTS We found substantial regional variation in the management of acute myocardial infarction in the United States. Beta-blockers (prescribed for a range of 55 to 81 percent of patients in the various regions), nitrates (prescribed for 61 to 77 percent), and angiotensin-converting-enzyme inhibitors (prescribed for 18 to 23 percent) were used most often in New England, whereas calcium-channel blockers (31 to 42 percent) and lidocaine (14 to 43 percent) were used least often there. Similarly, the proportion of patients undergoing various cardiac procedures differed among regions (range for angiography, 52 to 81 percent of patients; angioplasty, 22 to 35 percent; and coronary-artery bypass surgery, 9 to 17 percent) and was lowest in New England. The regional use of cardiac procedures was closely related to their availability, except in New England. After the analysis was adjusted for clinical and hospital variables, patients in New England were found to be less likely to undergo angiography than patients in the other regions (odds ratio, 0.37; 95 percent confidence interval, 0.32 to 0.42). There was no apparent relation between the use of cardiac procedures and rates of recurrent infarction or death at 30 days or 1 year. CONCLUSIONS There is substantial regional variation in the use of cardiac medications and procedures to manage acute myocardial infarction in the United States. The use and availability of cardiac procedures are closely related. The management of acute myocardial infarction in New England is atypical in that the relatively limited availability of cardiac procedures does not account for their relatively low use in that region.
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Affiliation(s)
- L Pilote
- Cleveland Clinic Foundation, OH 44195, USA
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35
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Sapp S. "...As the sparks fly upward". J Relig Health 1977; 16:44-51. [PMID: 24317932 DOI: 10.1007/bf01532852] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/02/2023]
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