The Journal of Thoracic and Cardiovascular Surgery, Vol 70, 19-23, Copyright © 1975 by The American Association for Thoracic Surgery and The Western Thoracic Surgical Association
Revascularization of the right coronary artery by retrograde perfusion of the mammary artery. An experimental study
A Florian, JJ Lamberti Jr, LH Cohn and JJ Collins Jr
Although the internal mammary artery bypass seems an ideal coronary bypass
vessel, it has not usually been possible to use this vessel to bypass
distal lesions in the right coronary circulation. In this experiment, the
right internal mammary artery was utilized in retrograde fashion to
evaluate this anatomically more suitable vessel as a bypass graft to the
occluded right coronary artery in the dog. Reversal of acute myocardial
ischemia was demonstrated by mapping epicardial ST-segment elevation and
measuring surface pH. Preliminary long-term experiments have also
demonstrated patency and perfusion of the distal right coronary artery by
this method.