[Cardiac events after myocardial infarction treated with streptokinase. The prognostic value of symptom-limited ECG on day 7].
One hundred and forty-seven consecutive patients admitted with suspected acute myocardial infarction (AMI) were treated with streptokinase. On day 7 after AMI 107 patients performed a symptom-limited exercise test (bicycle ergometer). Thirty-four of the tested patients developed at least one cardiac event (reinfarction, cardiac death, decided myocardial revascularization) during follow-up (30 months). Exercise induced ST-depression was more frequent among patients with cardiac events than among those without cardiac events (chi 2-test, p < 0.05). With multiple logistic regression analysis (BMPD) the following variables were found to have independent prognostic value for the development of new cardiac events: low maximal heart-rate during the exercise test, long duration of acute symptoms before streptokinase treatment and male sex. Exercise-induced ST-depression had no prognostic value in the BMPD-analysis. Exercise testing can be carried out with safety and supplies prognostic information concerning future cardiac events in patients with streptokinase-treated AMI.
Christensen
I
I
Kardiologisk afdeling, Aalborg Sygehus.
Toft
E
E
Landsfeldt
U S
US
Jensen
P
P
Rasmussen
K
K
D000328:Adult; D000368:Aged; D004562:Electrocardiography; D005080:Exercise Test; D005260:Female; D006801:Humans; D008297:Male; D008875:Middle Aged; D009203:Myocardial Infarction / Q000175:diagnosis / Q000188:drug therapy* / Q000401:mortality; D011379:Prognosis; D012008:Recurrence; D012044:Regression Analysis; D013300:Streptokinase / Q000627:therapeutic use*
D013300:Streptokinase