Peripheral Right Coronary Artery Pressure Distal to the Ligation

Abstract

SUMMARYThe ligature of right coronary artery near its origin produced low distal right coronary artery pressure, which showed gradual increase day by day, reaching maximum level (70% of the aortic pressure) in 8 postoperative days.The trial to produce rapid increase of the distal right coronary pressure by augmenting the left circumflex coronary pressure by means of roller pump was carried out in normal dogs. But the increase of the distal right coronary artery pressure was only several millimeters mercury. The pressure augmentation of 2 hours in the left side, therefore, could not produce sufficient collaterals from left to right.