Cardiopulmonary bypass combined with membrane oxygenator and deep hypothermia (20°C) is often employed

Abstract

One of the most clitical coanplication by using deep hypothermia is cereblovasular microembolism caused by the difference of solubility of oxygen and carbonediooxide. This study is examined on the microbubbles created by the different type oxygenator-by mean of ultrasonic echograply; two kinds of membrane oxygenator (Mesasilox, Capiox) and few kings of bubble oxygenator (Siley 070, BO55, Harvey H-1500, Harvey H-1500 (New-type) MI crobubbles were not visualized during the rewarming froan 20°to, 36°C in the cases of membrane oxygenator, but they were visualized in the cases of bubble oxygenator.