The effects of thrombolytic therapy on the high-resolution electrocardiogram after myocardial infarction

The effects of thrombolytic treatment was studied in 109 consecutive patients 9–11 days after their first acute myocardial infarction by high-resolution electrocardiography (ECG), 24 h Holier monitoring, exercise test and radionuclide ventricu-lography. Thirty-seven patients were treated with intravenous thrombolytic agents. Thrombolytic treatment was assessed by clinical criteria to be successful in 22 patients and probably successful in 12 patients. Thrombolysis failed in three patients and 72 patients did not receive thrombolytic treatment (control group). Measurements made on the high-resolution and filtered (60 Hz high-pass) vectormagnitude complex included the total duration, the duration of the potential