In order to evaluate the reflex peripheral vascular effects of coronary arteriography, forearm blood flow was measured plethysmographically and forearm vascular resistance calculated before and during coronary angiography with Hypaque-M, 75%, and Renografin-76. The injection of Hypaque into the left coronary artery resulted in a forearm vasodilation which could not be duplicated by an injection of a comparable amount of contrast into the ascending aorta, three centimeters above the coronary ostia. Forearm blood flow rose from 2.95 to 5.41 ml/min/100 ml (83.4%) and forearm vascular resistance fell from 35.8 to 19.9 mm Hg/ml/min/100 ml (44.4%). Renografin injected into the left coronary artery resulted in less forearm vasodilation (21% increase in forearm blood flow and 32% decrease in forearm vascular resistance). When coronary arteriography was repeated following injection of atropine into the brachial artery, no forearm vasodilation occurred. It is suggested that in human subjects myocardial or coronary artery receptors can be activated by the intracoronary injection of iodinated contrast media which results in a forearm vasodilation.
Hemodynamic responses initiated by coronary stretch receptors with special reference to coronary arteriography
Differential reflex adjustments in cutaneous and muscle vascular beds during experimental coronary artery occlusion
Left ventricular end-diastolic pressure before and after coronary arteriography. The value of coronary arteriography as a stress test
A comparison of the effects of vasodilator stimuli on peripheral resistance vessels in normal subjects and in patients with congestive heart failure
The effect of the application of an arterial occlusion cuff to the wrist on the blood flow in the human forearm
The Bezold-Jarisch reflex revisited: clinical implications of inhibitory reflexes originating in the heart
Bezold-Jarisch-like phenomenon induced by radiofrequency ablation of a left posteroseptal accessory pathway via the coronary sinus
Cholinergic baroreflex vasodilatation: defect in heart transplant recipients due to denervation of the ventricular baroreceptor
Coronary flow studies in patients with left ventricular hypertrophy of the hypertensive type. Evidence for an impaired coronary vascular reserve
Effects of nonionic versus ionic contrast media on complications of percutaneous transluminal coronary angioplasty
Heart rate response to intracoronary contrast media injection before and after percutaneous transluminal coronary angioplasty
Effects of Catheterization on Artery Function and Health: When Should Patients Start Exercising Following Their Coronary Intervention?
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