[History of pre-existing angina and post-infarct myocardial ischemia (symptomatic and asymptomatic)].
353 patients enrolled in a cardiac rehabilitation program underwent a bicycle-ergometric test 28-60 days after an acute myocardial infarction. Twenty-nine patients (8.2%) had a previous history of chronic angina pectoris (more than 6 months before an acute myocardial infarction): 3 of these subjects did not develop myocardial ischemia after infarction; 26 (89.6%) (Group A) had an ischemic response on effort with horizontal or downsloping S-T segment depression of 2 mV. Ninety-four of 324 Patients without history of chronic angina pectoris had an ischemic response at exercise test (Group B) (p less than 0.001). In Group A the association of ischemic electrocardiographic changes and pain during the test was more frequent than in Group B (42.3% vs. 16%) p less than 0.01). During rehabilitation and follow up period (27.2 +/- 14 months) we observed that only 11.5% of Group A Patients remained symptomatic compared to 69.1% Group B Patients (p less than 0.001). In conclusion, a history of chronic pre-infarction angina pectoris appears to be a predictor of symptomatic ischemia after myocardial infarction.
D000328:Adult; D000787:Angina Pectoris / Q000150:complications* / Q000175:diagnosis / Q000209:etiology; D000789:Angina, Unstable / Q000150:complications* / Q000175:diagnosis / Q000503:physiopathology; D003327:Coronary Disease / Q000175:diagnosis / Q000209:etiology*; D005080:Exercise Test; D006801:Humans; D008297:Male; D008875:Middle Aged; D009203:Myocardial Infarction / Q000150:complications*
Storia di angina pregressa ed ischemia miocardica post-infartuale (sintomatica e asintomatica).