["Separate hypothermia" retrograde cerebral perfusion for repair of aortic arch].

We have developed a new technique of retrograde cerebral perfusion. To avoid the disadvantages by deep hypothermia, and to protect the brain for longer time, we perfused from SVC cannula with blood cooled at 10-15 degrees C, at the same time from femoral artery with blood cooled at 20-26 degrees C. From October 1991 to December 1992, 8 patients underwent surgical repair using this method. By this method, the cases of which cerebral perfusion time were 147, 134, 125, 119, 110 minutes, did not have neurological deficits.