1965/11/01 by Dean T. Mason, Eugene Braunwald, Frederick A. Bullock +1 · 1 citation
Medicine · #Atrial Fibrillation Management and Outcomes
paper · pdf · doi:10.1161/01.cir.32.5.755
openalex publication_date 1965/11/01 · openalex created_date 2025/10/10 · openalex updated_date 2026/06/26
The effects of sublingual nitroglycerin and inhaled amyl nitrite on the arteriolar and venous beds of the forearm were studied in 11 normal subjects. Forearm blood flow was measured with a strain-gauge plethysmograph, and venous tone was determined both by an acute occlusion technic, and by several equilibration technics. Nitroglycerin reduced systemic arterial pressure, elevated forearm blood flow, lowered forearm vascular resistance and decreased venous tone. Amyl nitrite diminished arterial pressure, elevated forearm blood flow, markedly decreased forearm vascular resistance, but in contrast to nitroglycerin augmented venous tone strikingly. This venoconstriction was abolished or diminished when adrenergic activity was impeded by administration of either guanethidine or reserpine.