Coronary Artery DiseaseDiagnostic and Prognostic Value of Dipyridamole and Dobutamine Stress Echocardiography in Patients With Q-Wave Acute Myocardial Infarction
Section snippets
Patients
Seventy consecutive patients admitted to the Coronary Care Unit for a first AMI from September 1991 to June 1992 and treated with thrombolytic therapy within 4 hours from the onset of symptoms were studied. Five patients with non-Q-wave AMI, 3 with unsatisfactory echocardiographic images, and 12 with clinically complicated course (continuing ischemia, left ventricular failure, shock or major arrhythmias) were excluded from the study. Fifty patients (47 men, 3 women, mean age 55 ± 9 years, range
Results
In all patients both tests were performed without major side effects.
Discussion
During recent years dipyridamole or dobutamine stress echocardiography has been increasingly used in patients with AMI. The present study compared the results of both pharmacologic tests performed in random order on different days very early after the onset of AMI. Our results are consistent with previous studies showing a similar accuracy of dipyridamole and dobutamine in identifying inducible ischemia1, 2, 3, 6, 7, 8, 9, 10, 12, 15 and viable myocardium.8, 9 Not surprisingly, the prognostic
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