A+醫(yī)學(xué)百科 >> 體外循環(huán)

體外循環(huán)：體外循環(huán)是指應(yīng)用人工管道將人體大血管與人工心肺機(jī)連接，從靜脈系統(tǒng)引出靜脈血，并在體外氧合，再經(jīng)血泵將氧合血輸回動(dòng)脈系統(tǒng)的全過程，又稱心肺轉(zhuǎn)流，主要應(yīng)用于心臟、大血管手術(shù)。

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

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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