Blood Flow Through Aorta-to-Coronary Artery Bypass Grafts and Early Postoperative Patency

IF 3.9 2区医学 Q1 CARDIAC & CARDIOVASCULAR SYSTEMS Annals of Thoracic Surgery Pub Date : 1971-12-01 Epub Date: 2010-07-24 DOI:10.1016/S0003-4975(10)64792-3

Claude M. Grondin M.D., Claude Meere M.D., Yves R. Castonguay M.D., Gilles Lepage M.D., Pierre Grondin M.D.

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Abstract

Blood flow through aorta-to-coronary artery bypass grafts was measured in 100 patients who underwent insertion of a total of 157 grafts to the right (RCA), left anterior descending (LAD), or circumflex (CIRC) coronary artery or to a combination of these arteries. Angiographic evaluation was obtained in all patients in the early postoperative period.

The overall patency rate was 88.5%. Mean flow was 28 ml. per minute in occluded grafts and 66 ml. per minute in patent grafts. The mean flow doubled in both groups following injection of papaverine into the graft, although 5 of the 18 occluded grafts failed to respond to papaverine. This phenomenon was not observed in patent grafts.

In all but 1 occluded graft, blood flow was less than 50 ml. per minute. Only 3 of 12 grafts with a flow of 25 ml. or less remained open.

It is concluded that intraoperative measurement of blood flow provides a reliable index of early postoperative patency in aorta-to-coronary bypass grafts.

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主动脉-冠状动脉旁路移植术血流及术后早期通畅

100例患者接受了157例右（RCA）、左前降（LAD）、旋（CIRC）冠状动脉或这些动脉的组合植入术，测量了经主动脉-冠状动脉旁路移植术的血流量。所有患者术后早期均行血管造影评价。总通畅率为88.5%。闭塞移植物的平均流速为28毫升/分钟，未通畅移植物的平均流速为66毫升/分钟。注射罂粟碱后，两组的平均流量增加了一倍，尽管18个闭塞的移植物中有5个对罂粟碱没有反应。这种现象在未愈合的移植物中未被观察到。除一例外，所有闭塞的移植物血流量均小于50ml / min。流量在25ml或更少的12个移植物中只有3个保持开放。由此得出结论，术中血流测量是主动脉冠状动脉旁路移植术术后早期通畅的可靠指标。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Annals of Thoracic Surgery 医学-呼吸系统

CiteScore

6.40

自引率

13.00%

发文量

1235

审稿时长

42 days

期刊介绍： The mission of The Annals of Thoracic Surgery is to promote scholarship in cardiothoracic surgery patient care, clinical practice, research, education, and policy. As the official journal of two of the largest American associations in its specialty, this leading monthly enjoys outstanding editorial leadership and maintains rigorous selection standards. The Annals of Thoracic Surgery features: • Full-length original articles on clinical advances, current surgical methods, and controversial topics and techniques • New Technology articles • Case reports • "How-to-do-it" features • Reviews of current literature • Supplements on symposia • Commentary pieces and correspondence • CME • Online-only case reports, "how-to-do-its", and images in cardiothoracic surgery. An authoritative, clinically oriented, comprehensive resource, The Annals of Thoracic Surgery is committed to providing a place for all thoracic surgeons to relate experiences which will help improve patient care.