Compared to routine CPB, a patient undergoing aortic arch repair with DHCA will likely have?

In the context of aortic arch repair utilizing deep hypothermic circulatory arrest (DHCA), it is important to understand the inherent physiological and surgical advantages DHCA provides over routine cardiopulmonary bypass (CPB).

When evaluating the impact of DHCA on rewarming time, coagulopathy, and neurologic recovery, the use of DHCA often leads to a more controlled and effective surgical environment during complex procedures such as aortic arch repair. The cooling and subsequent rewarming phases are meticulously managed, which can contribute to efficient heat exchange but doesn't inherently guarantee shorter rewarming times; however, the protocol typically allows for a gradual and measured rewarming that may be beneficial.

Regarding coagulopathy, the potent anticoagulation effects of heparin used during CPB can lead to a significant risk for bleeding and coagulation disorders post-operation. With DHCA, there is often reduced heparin exposure during the arrest period, and the physiological changes induced by deep hypothermia can help mitigate coagulation complications. As a result, patients may have a lower likelihood of coagulopathy following surgery when DHCA is employed, particularly due to the controlled environment.

For neurologic recovery, the use of DHCA can help preserve cerebral function during periods