Assessment of arteriovenous blood flow during retrograde cerebral perfusion.

摘要

OBJECTIVE: This study examined arterial and venous blood flow during retrograde cerebral perfusion (RCP) to quantify what proportion of arterial inflow is not recovered as venous outflow. DESIGN: Prospective. SETTING: Community hospital, university setting, single institution. PARTICIPANTS: Twelve patients undergoing reconstructive aortic arch surgery with profound hypothermic circulatory arrest and RCP. INTERVENTIONS: None. MEASUREMENTS AND MAIN RESULTS: RCP arterial inflow and venous outflow measurements were recorded at 2-minute intervals for 10 minutes, averaged, and then compared. Only 44.9%+/-16.3% of RCP inflow returned through the aortic arch. The remainder was not recovered. CONCLUSION: Internal jugular venous valves, sequestration, and shunting may contribute to arterial inflow diversion during RCP.