Application of moderate hypothemia in emergency operation of acute type A aortic dissection
Hou Yanting
Chen Liangwan
Wu Xijie
Li Qianzhen
Dong Yi
Zhang Hui
Abstract：Objective To estimate the clinical effect of moderate hypothermic circulation arrest in acute type A aortic dissection (A AD). Methods Fifty patients with acute type AAD that involved aortic arch received aortic arch reconstruction with triple-branched stent graft. Selective bilateral cerebral perfusion was achieved via right axillary artery and left carotid artery intubation. The cardiopulmonary bypass time, aortic cross clap time, selective cerebral perfusion time, circulatory arrest time, and postoperative neurologaical complications were recorded. Results Cardiopulmonary bypass time was 135.36±18.07 minutes, and aortic cross clamp time was 53.82±14.64 minutes. Selective cerebral perfusion time was 8.92±1.58 minutes, and total arrest time was 4.47±1.7 minutes. Forty -eight patients resuscitated within 48 hours. Two patients suffered temporary neurologic dysfunction, but they recovered before hospital discharge. Two patients died of cerebral hemorrhage 4 and 6 days postoperatively. One patient died of septicemia and multiple organ failure.Two patients with preoperative acute renal failure died of postoperative multiorgan failure. Conclusions Moderate hypothermia circulatory arrest is safe in the surgery of acute type AAD with triple-branched stent graft. The procedure can shorten selective cerebral perfusion and circulatory arrest time.
Keywords：Cardiopulmonary bypassModerate temperatureDiscontinuous arrestSelection cerebral perfusion
Publication Date：2018-01-01
Online Publishing Date：2025-08-15(First online date of this platform, not the publication date of the document)
Pages：4( 38-40,47 )