THROMBOLYTIC THERAPY IN ACUTE MYOCARDIAL INFARCTION: THE SCOPE IN A DISTRICT GENERAL HOSPITAL
Despite the interest in thrombolytic therapy in acute’ myocardial infarction, it has been reported.that only a small minority of patients considered for thrombloysis would be suitable. .To determine the demand for such therapy in a District General Hospital, data were collected for patients admitted with chest pain to our Coronary Care Unit over a six month period. Of 197 patients admitted with chest pain 131 patients (67%) were proven to have acute myocardial infarction. Criteria for thrombolytic therapy included presentation within six hours of the onset of symptoms, ST elevation ≥ 0.2 mV in 2 or more ECG leads and age ≤ 70 years. Sixty-seven (51%) of the 131 patients with subsequently proven acute myocardial infarction were eligible for thrombolysis. Criteria for thrombolysis were not fulfilled in 41 patients with acute myocardial infarction; 17 (13%) presented later than six hours, 15 (12%) failed to meet the ECG criteria and 9 (7%) were over 70 years. A further 12 (9%) patients were excluded for cardiogenic shock, patients had peptic ulcers, one patient sustained a recent acute myocardial infarction 2 weeks previously and data from 8 patients were lost.These results suggest that around 50% of patients with acute myocardial infarction and 34% of all patients presenting with chest pain would be suitable for thrombolytic therapy. These data do not support the view that such treatment may only be applicable to a small number of patients with acute myocardial infarction.