Phentolamine

Phentolamine in Heart

5. Dushane JW, Kirklin JW: Late results of the repair of ventricular septal defect on pulmonary vascular disease. In Advances in Cardiovascular Surgery, edited by Kirklin JW: New York, Grune and Stratton, 1973, p 9 6. Jarmakani MM, Graham TP Jr, Canent RV Jr., Spach MS, Capp MP: Effect of site of shunt on left heart volume characteristics in children with ventricular septal defect and patent du...

Myocardial effects of phentolamine.

Oral phentolamine in angina pectoris.

Twelve patients with stable angina pectoris received a placebo for 7 days and then oral phentolamine for an additional 7 days. Exercise was performed at the conclusion of the 2 drug periods. All of the patients developed angina with the stress of exercise while taking placebos. The average time to develop angina was 208sec. In comparison, 9 of the 12 patients were able to exercise longer after ...

The Circulatory Effects of Intravenous Phentolamine

THE recognition of the importance of the sympathetic nervous system in the control of the systemic arterial blood pressure has stimulated the search for therapeutically useful sympathoadrenergic blocking agents that may be of use in the diagnosis and treatment of hypertensive vascular disease. Numerous agents of diverse chemical structure have been developed and explored for such therapeutic ef...

Electrophysiological properties of phentolamine in man.

The effects of phentolamine, 0-3 mg/min given intravenously for 15 minutes, on His bundle electrograms were studied in 11 patients with heart disease. Recordings were made at varied heart rates, using atrial pacing. Phentolamine significantly reduced the AH interval in every patient but it had no effect on the HV interval. Functional and effective refractory periods were measured with the use o...