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Clinical Trial, Phase III
Journal Article
Multicenter Study
Randomized Controlled Trial
The effect of angiotensin-converting enzyme inhibitors on clinical outcomes in patients with ischemic cardiomyopathy and midrange ejection fraction: a post hoc subgroup analysis from the PEACE trial.
Therapeutic Advances in Cardiovascular Disease 2018 December
BACKGROUND:: There have been significant advances in the treatment of patients with cardiomyopathy with reduced ejection fraction (EF < 40%). However, there is a dearth of information in the treatment of patients with cardiomyopathy and midrange EF (40-50%). Current guidelines state to treat these patients similarly to patients with cardiomyopathy and preserved EF. Data from the Prevention of Events with Angiotensin-Converting Enzyme Inhibition (PEACE) trial were used to elucidate whether angiotensin-converting enzyme (ACE) inhibitors improve clinical outcomes in patients with ischemic cardiomyopathy and midrange EF.
METHODS:: A post hoc subgroup analysis of the PEACE trial was conducted to evaluate the effect of ACE inhibitors in a subgroup of patients with ischemic cardiomyopathy and midrange EF (40-50%). A Chi-square test and a Student's t-test were used to examine and compare the binary and continuous variables of baseline characteristics and outcomes between experimental and comparison groups.
RESULTS:: We studied a subgroup of patients from the PEACE trial with ischemic cardiomyopathy and midrange EF ( n = 2512 of 8290 total patients). Patients were assigned to either the interventional group ( n = 1247) or the placebo group ( n = 1265). There were no significant differences in baseline demographic and health characteristics between the two groups. During a total of 7 years (mean 4.7 years) of follow up, the risk of composite outcomes [all-cause mortality, nonfatal myocardial infarction, and stroke; relative risk (RR) 0.79, 95% confidence interval (CI) 0.63-0.98; p = 0.03] and all-cause mortality (RR 0.85, 95% CI 0.73-0.99; p = 0.03) was reduced in patients treated with trandolapril.
CONCLUSION:: This study revealed the benefit of ACE inhibitors among patients with ischemic cardiomyopathy and midrange EF.
METHODS:: A post hoc subgroup analysis of the PEACE trial was conducted to evaluate the effect of ACE inhibitors in a subgroup of patients with ischemic cardiomyopathy and midrange EF (40-50%). A Chi-square test and a Student's t-test were used to examine and compare the binary and continuous variables of baseline characteristics and outcomes between experimental and comparison groups.
RESULTS:: We studied a subgroup of patients from the PEACE trial with ischemic cardiomyopathy and midrange EF ( n = 2512 of 8290 total patients). Patients were assigned to either the interventional group ( n = 1247) or the placebo group ( n = 1265). There were no significant differences in baseline demographic and health characteristics between the two groups. During a total of 7 years (mean 4.7 years) of follow up, the risk of composite outcomes [all-cause mortality, nonfatal myocardial infarction, and stroke; relative risk (RR) 0.79, 95% confidence interval (CI) 0.63-0.98; p = 0.03] and all-cause mortality (RR 0.85, 95% CI 0.73-0.99; p = 0.03) was reduced in patients treated with trandolapril.
CONCLUSION:: This study revealed the benefit of ACE inhibitors among patients with ischemic cardiomyopathy and midrange EF.
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