HOME HELP FEEDBACK SUBSCRIPTIONS ARCHIVE SEARCH TABLE OF CONTENTS		QUICK SEARCH:   [advanced] Author: Keyword(s): Year:  Vol:  Page:

This Article Alert me when this article is cited Alert me if a correction is posted Services Email this article to a friend Similar articles in this journal Similar articles in PubMed Alert me to new issues of the journal Add to Personal Folders Download to citation manager Permission Requests Citing Articles Citing Articles via HighWire Citing Articles via Google Scholar Google Scholar Articles by Lee, C. N. Articles by Kaye, M. P. Search for Related Content PubMed PubMed Citation Articles by Lee, C. N. Articles by Kaye, M. P.

The Journal of Thoracic and Cardiovascular Surgery, Vol 91, 405-410, Copyright © 1986 by The American Association for Thoracic Surgery and The Western Thoracic Surgical Association

ARTICLES

Flow capacity of the canine internal mammary artery

CN Lee, TA Orszulak, HV Schaff and MP Kaye

The internal mammary artery has excellent long-term patency when used as a conduit for coronary artery bypass, and clinical and experimental studies have shown that blood flow through an internal mammary artery graft is satisfactory for most coronary artery branches. Multiple distal anastomoses from a single internal mammary artery, either with sequential anastomoses or with a Y-graft, might require additional blood flow through the vessel, and there has been concern that the flow capacity of the internal mammary artery is insufficient with these techniques. To better define the immediate postoperative flow capacity and pattern of the internal mammary artery, we performed experiments in seven dogs in which the left internal mammary artery was anastomosed to the circumflex coronary artery. In situ, blood flow in the internal mammary artery was 27 ml/min. Blood flow was 63 ml/min in the circumflex coronary artery and 42 ml/min in the left anterior descending coronary artery. After anastomosis of the left internal mammary artery to the circumflex coronary artery, the left main coronary artery was ligated; flow through the bypass graft increased to 92 ml/min, and systemic hemodynamics remained stable. Isoproterenol stimulation further increased flow through the left internal mammary artery graft to 160 ml/min. This study suggests that the canine internal mammary artery is capable of substantial early increase in flow and can, in fact, support the entire left coronary circulation.

This article has been cited by other articles:

				P. Kam, L. Hines, and E. O'Connor Effects of cardiopulmonary bypass on systemic vascular resistance Perfusion, January 1, 1996; 11(4): 346 - 350. [Abstract] [PDF]

				L. Noyez, T. van der Werf, T. J. Klinkenberg, D. P. B. Janssen, G. L. Kaan, and L. K. Lacquet Experience and early results of second reoperations for coronary artery diseaseShould patent vein grafts be replaced during reoperation? J. Thorac. Cardiovasc. Surg., March 1, 1994; 107(3): 684 - 689. [Abstract] [Full Text]

				R. N. Singh and P. C. Taylor Use of the Right Mammary Artery for Coronary Bypass Vascular and Endovascular Surgery, September 1, 1987; 21(5): 301 - 304. [Abstract] [PDF]