Kim Dae Hyeon, Sohn Suk Ho, Hwang Ho Young
Department of Thoracic and Cardiovascular Surgery, Seoul National University Hospital, Seoul National University College of Medicine, Seoul, Korea.
Korean J Thorac Cardiovasc Surg. 2020 Oct 5;53(5):263-269. doi: 10.5090/kjtcs.20.005.
The benefits of epicardial ultrasound scanning (EUS) in coronary artery bypass grafting (CABG) have not yet been established. The aim of this study was to evaluate the usefulness of EUS in CABG, including in the assessment of the quality of distal anastomoses, the identification of epicardial target vessels, and the evaluation of any graft issues other than the distal anastomoses.
Fifty-three patients undergoing CABG were enrolled between March 2018 and February 2019. Intraoperative EUS was performed along with transit-time flow measurement (TTFM). Graft evaluations were performed early (shortly after surgery) and 1 year after surgery for 53 (100%) and 47 (88.7%) patients, respectively.
EUS was applied to assess the quality of all distal anastomoses, 32 target vessels, and 2 conduit trunks. Insufficient TTFM findings were obtained for 18 grafts. However, graft revision was performed for only 3 distal anastomoses; based on the EUS findings, the remaining 15 sites were not revised. The early and 1-year overall graft patency rates were 100% (141 anastomoses) and 96.1% (122 of 127 anastomoses), respectively. All 15 of the distal anastomoses that were not revised despite insufficient TTFM results were patent at the 1-year mark.
The routine application of EUS in CABG could be beneficial by confirming the quality of surgery and reducing unnecessary procedures.
心外膜超声扫描(EUS)在冠状动脉旁路移植术(CABG)中的益处尚未明确。本研究的目的是评估EUS在CABG中的实用性,包括评估远端吻合口质量、识别心外膜靶血管以及评估除远端吻合口之外的任何移植物问题。
2018年3月至2019年2月期间纳入了53例行CABG的患者。术中进行EUS并同时进行渡越时间血流测量(TTFM)。分别对53例(100%)患者在术后早期(手术后不久)和47例(88.7%)患者在术后1年进行移植物评估。
EUS用于评估所有远端吻合口、32条靶血管和2条血管桥干的质量。18条移植物的TTFM结果不充分。然而,仅对3个远端吻合口进行了移植物修复;根据EUS结果,其余15个部位未进行修复。早期和1年时总的移植物通畅率分别为100%(141个吻合口)和96.1%(127个吻合口中的122个)。尽管TTFM结果不充分但未进行修复的所有15个远端吻合口在1年时均通畅。
在CABG中常规应用EUS可能有助于确认手术质量并减少不必要的操作。