Background: Myocardial ischemia may play a role in the natural history of hypertrophic cardiomyopathy (HCM). To assess the relative prevalence and the prognostic value of dipyridamole-induced ischemia, 79 patients with HCM and without concomitant coronary artery disease (53 men; mean age, 46+/-15 years) underwent a high-dose (up to 0.84 mg/kg over 10 minutes) dipyridamole test with 12-lead ECG and two-dimensional echo monitoring and were followed up for a mean of 6 years.
View Article and Find Full Text PDFThe recognition of coexistent coronary artery disease (CAD) in patients with hypertrophic cardiomyopathy may be difficult by noninvasive testing based upon electrocardiographic changes or perfusion defects. Dipyridamole-stress echocardiography has proved a sensitive and highly specific test for noninvasive diagnosis of CAD in various patient subsets. To establish the feasibility, safety, and diagnostic accuracy of dipyridamole-stress echocardiography in patients with hypertrophic cardiomyopathy, we performed high-dose dipyridamole testing (up to 0.
View Article and Find Full Text PDFAnti-ischaemic properties and tolerability of the calcium antagonist gallopamil were compared with those of nifedipine in a double-blind cross-over study performed in 20 patients affected by effort or mixed angina. The patients were of both sexes and aged 43-66 years; coronary angiography performed on 18 of them revealed at least one-vessel disease (stenosis greater than 70%). After a one week wash-out period the patients received placebo for 2 weeks; thereafter 10 patients were treated orally with gallopamil 150 mg daily and 10 patients with nifedipine 60 mg daily for 4 weeks.
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