Archive for the ‘Tachycardia’ Category

A second dose of oral bethanidine (750 mg) was given four hours after the initial dose. The same sustained VT was induced from the right ventricular outflow tract during ventricular pacing at 500 ms with double ventricular extrastimuli. The patient received two more 500-mg oral doses of bethanidine at six-hour intervals, but sustained VT developed. […]

Cardiac catheterization revealed a totally occluded left anterior descending coronary artery and severely depressed systolic function, with an ejection fraction of 0.25 percent. A large anteroapical aneurysm was present. Due to the extensive size of the aneurysm and his poor left ventricular function,the patient was believed not to be a surgical candidate. High-dose therapy with […]

Bretylium tosylate is a class 3 antiarrhythmie drug useful in the treatment of drug-resistant ventricular tachycardia (VT) and ventricular and fibrillation. We report the findings in a patient in whom bretylium was the only agent that suppressed refractory VT and ventricular fibrillation. Other class 3 antiarrhythmie agents, amiodarone and betha-nadine, were proarrhythmic. Electrophysiologic testing on […]