Abstract

GUZMAN-SANCHEZ, César Manuel; CASTAN-FLORES, David Arturo  and  MARTINEZ-MACEDO, Gilberto. Prevalence of cardiac events in patients stratified by dobutamine stress echocardiogram. Rev. Mex. Cardiol [online]. 2012, vol.23, n.2, pp.52-57. ISSN 0188-2198.

Introduction: The dobutamine stress echocardiogram is a widely used tool for risk stratification in patients experiencing an acute coronary event. Purpose: To describe the prevalence of sudden death, acute myocardial infarction with ST-elevation, acute myocardial infarction without ST elevation and unstable angina in patients stratified by ESD in our hospital during 2007, in a follow-up period of two years. Material and methods: Cross-sectional study, analytical, descriptive, using as units of observation records dobutamine stress echocardiography in patients evaluated in the Western National Medical Center in 2007. Results: We analyzed 142 records of ESD, 79 positive studies. Patients with positive ESD were divided according to the affected segments, the prevalence in patients with 1 to 2 segments affected was 42%, with 0% mortality, the prevalence in patients with 3 to 4 segments affected was 32.25%, with 0 % mortality, in patients with 5 or more affected segments revascularized was 0% versus 14.3% in the same group of patients who were not revascularized. Conclusions: The results is not different than expected, but we believe that patients with positive ESD at low and intermediate risk are less closely monitored, and high-risk patients have fewer prevalence as they are rapidly revascularized.

Keywords : Stress echocardiography; dobutamine; mortality; angina.