Open AccessRisk factors related to the occurrence of silent myocardial ischemia in mexicans
Author(s) -
UnzuetaMontoya Alberto,
Rubio Arturo TorresY Gutiérrez,
Unzueta Alberto,
OrdonezToquero Guillermo,
Hernández Héctor HernándezY,
De La Peña Jorge Escobedo,
PérezReyes Patricia
Publication year - 2000
Publication title -
clinical cardiology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.263
H-Index - 72
eISSN - 1932-8737
pISSN - 0160-9289
DOI - 10.1002/clc.4960230405
Subject(s) - medicine , myocardial ischemia , ischemia , cardiology
Background: Silent myocardial ischemia is a growing world health problem. It has been related to factors that promote an increase in myocardial oxygen demand or affect coronary vasomotor tone. Coronary artery disease has shown an increasing trend in Mexico in this century. Hypothesis: The aim of the study was to estimate the strength of the association between some risk factors and the occurrence of silent myocardial ischemia. Methods: A cross‐sectional study was conducted and 249 individuals were screened by 24‐h Holter electrocardiogram. Silent myocardial ischemia was diagnosed in patients with painless transient ST‐segment depression. All subjects were interviewed for coronary risk factors and total serum cholesterol was measured. Results: Silent ischemia was diagnosed in 115 patients (46%), who were older (59±9 vs. 57±11 years; p=0.01). In a logistic regression analysis, a lower risk for silent ischemia was found in patients with thrombolysis [odds ratio (OR) 0.28; 95% confidence interval (CI 95%) 0.14–0.53], or those who followed their medical treatment (OR 0.16; CI 95% 0.04–0.68). The major risk factors were hypercholesterolemia (OR 1.6; CI 95% 0.9–2.9) and more severe coronary artery disease (OR 2.5; CI 95% 1.1–5.7). Conclusions: Some coronary risk factors are related to silent ischemia. It is still important to diagnose this entity, but modification of its related risk factors should be kept in mind to diminish its occurrence and its severe consequences.