Cerebral Blood Flow During Cardiopulmonary Bypass
Since the introduction of cardiopulmonary bypass in 1953 many improvements have been made. By the end of the 1970s, the general mortality rate for open heart surgery had fallen to about 2%–3%. In the last few years further improvements have been reported, and the present mortality rate is probably lower: in patients who had coronary venous bypass grafting, the mortality rates can be below 1%. As the mortality rates are so low, they are of little use in evaluating the markedly different techniques for extracorporeal circulation. Other criteria thus have to be considered.
KeywordsDioxide Filtration Ischemia Anemia Bicarbonate
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