Natural History of Coronary Heart Disease
To examine the natural history of mortality due to coronary heart disease in post-myocardial infarction patients from the Beta-Blocker Heart Attack Trial (BHAT) and the Aspirin Myocardial Infarction Study (AMIS).
Death, Sudden, Cardiac
Heart Failure, Congestive
|Study Design:||Observational Model: Natural History|
|Study Start Date:||September 1990|
|Estimated Study Completion Date:||May 1992|
In January 1990, the National Heart, Lung, and Blood Institute issued a Program Announcement establishing a Small Grants Program to provide limited support to extend analyses of research data generated by clinical trials, population research, and demonstration and education studies. This study used data collected in two completed clinical trials, the BHAT and AMIS.
Study endpoints included all-cause mortality, cause-specific mortality such as sudden death, recurrent and non-fatal myocardial infarction, and incident congestive heart failure. Univariate and multivariate analyses of baseline data variables from BHAT were conducted to determine which were predictive of study endpoints. Baseline variables included sociodemograhic characteristics, medical history, medication use, physical examination finds, and electrocardiographic characteristics. Baseline characteristics found to be predictive of study endpoints in the BHAT placebo group were examined in the AMIS placebo group. Long- and short-term prognoses for patients suffering a transmural myocardial infarction were compared for those suffering a subendocardial infarction.