Department of Cardiac Surgery, Heart Center Leipzig, University of Leipzig, Saxony, Germany.
Interact Cardiovasc Thorac Surg. 2022 Jan 18;34(2):329-330. doi: 10.1093/icvts/ivab253.
The presence of a mechanical aortic valve prosthesis is considered a relative contraindication for left ventricular assist device implantation (LVAD) due to the occurrence of thromboembolic events. Five patients were operated on for LVAD implantation with status post mechanical aortic valve implantation (n = 3 with status post Bentall procedure). After removal of the leaflets, a transcatheter balloon-expandable valve was placed within the mechanical ring in all patients. Three patients were discharged from hospital with a maximum follow-up of 3.3 years. Transaortic transcatheter valve implantation into a mechanical aortic valve during LVAD implantation is a feasible option. It reduces operative times and might also prevent thromboembolic events.
由于机械主动脉瓣假体存在发生血栓栓塞事件的风险，因此被认为是左心室辅助装置（LVAD）植入的相对禁忌证。5 名患者接受了 LVAD 植入手术，此前曾接受过机械主动脉瓣植入（n=3 例接受 Bentall 手术后）。在所有患者中，在机械环内均放置了经导管球囊扩张瓣膜以去除瓣叶。3 名患者出院，随访时间最长为 3.3 年。在 LVAD 植入过程中，经主动脉经导管瓣膜植入到机械主动脉瓣是一种可行的选择。它可以减少手术时间，也可能预防血栓栓塞事件。
