体外循环

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体外循环:体外循环是指应用人工管道将人体大血管与人工心肺机连接,从静脉系统引出静脉血,并在体外氧合,再经血泵将氧合血输回动脉系统的全过程,又称心肺转流,主要应用于心脏、大血管手术。

Extracorporeal circulation: The technique of mechanically circulating the blood so the heart doesn't have to. The device used for ECC is called the heart-lung machine or the cardiopulmonary bypass circuit. This device drains the blue blood from the patient, places

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oxygen in the blood, and returns (or pumps) the red blood back into the aorta for distribution to the whole body. To prevent clotting in the heart-lung circuit, strong anticoagulation with heparin is needed.

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