Dear Dr. Harris, 1.Before the last attempt I implanted and explanted twice .I wanted to do the last one on a still heart.Aorta was out of site and we hane no endoclamp. 2.Hypothermia up to 20 C, Pentothal infusion ,RCP( 500 cc/min) at 20C 3.Rewarm up to 35 C 4.Cool and rewarm in 45 min 5.Htc 18,PH 7.25 erdinc