Division of Cardiac Surgery, Department of Cardiothoracic Surgery, University of Pittsburgh, Pittsburgh, PA; Heart and Vascular Institute, University of Pittsburgh Medical Center, Pittsburgh, PA.
Department of Anesthesiology, University of Pittsburgh, Pittsburgh, PA.
J Cardiothorac Vasc Anesth. 2020 Jan;34(1):258-266. doi: 10.1053/j.jvca.2019.05.005. Epub 2019 May 11.
Cardiopulmonary bypass (CPB) has been one of the most important additions to the field of heart surgery in the past century. However, significant morbidity associated with CPB has led to the increasing implementation of off-pump coronary artery bypass (OPCAB). The use of OPCAB has broadened surgical revascularization for patient populations at high risk for undergoing CPB, including the very elderly and patients with impending end-organ failure. Intraoperative hemodynamic instability requires expeditious correction of hypotension with various medical and surgical techniques that require the close attention and skill of both the anesthesia and surgical teams. Technical skill at performing and interpreting transesophageal echocardiography is essential to help differentiate regional wall motion abnormalities from coronary ischemia and external compression from manipulation of the heart, which require different management strategies to resolve hemodynamic collapse. Flawless communication between the anesthesiologist and surgeons, with frequent intraoperative adjustments, is paramount for the completion of successful OPCAB.
体外循环(CPB)是过去一个世纪心脏外科学领域最重要的进展之一。然而,CPB 相关的严重发病率导致了非体外循环冠状动脉旁路移植术(OPCAB)的应用越来越广泛。OPCAB 的应用拓宽了高危 CPB 患者的手术血运重建范围,包括非常高龄和即将发生终末器官衰竭的患者。术中血流动力学不稳定需要迅速纠正低血压,这需要麻醉和外科团队的密切关注和技能,采用各种医疗和外科技术。进行和解释经食管超声心动图的技术技能对于帮助区分局部壁运动异常与冠状动脉缺血以及心脏操作的外部压迫至关重要,这需要不同的管理策略来解决血流动力学崩溃。麻醉师和外科医生之间完美的沟通,以及频繁的术中调整,对于成功完成 OPCAB 至关重要。