ABSTRACT
Hemodynamic borrowing and stealing phenomena in various vascular basins have been detected and quantified, using ultrasonic dopplerography and transcutaneous oxygen tension measurement, in 74 patients. The results were confirmed by aorto-arteriography. These noninvasive procedures are shown to be highly valuable for the diagnosis of blood borrowing and stealing.
Subject(s)
Arterial Occlusive Diseases/physiopathology , Brachiocephalic Trunk/physiopathology , Subclavian Artery/physiopathology , Subclavian Steal Syndrome/diagnosis , Vertebral Artery/physiopathology , Vertebrobasilar Insufficiency/diagnosis , Blood Gas Monitoring, Transcutaneous , Hemodynamics , Humans , Male , Subclavian Steal Syndrome/etiology , Ultrasonography , Vertebrobasilar Insufficiency/etiologyABSTRACT
Central and regional hemodynamic parameters were investigated in experimental models of axillofemoral shunts, using electromagnetic flowmetry and electromanometry. Shunt function was shown to be based exclusively on the regional hemodynamic mechanism where blood is "borrowed" from brachycephalic branches of the arch of the aorta. Conditions were identified that contributed to the "stealing" phenomenon in the presence of axillofemoral shunting.
