心内直视外科，开心手术：打开胸腔以暴露心脏的手术，然后通过人工心肺机来供血和氧。
Surgery in which the thoracic cavity is opened to expose the heart and the blood is recirculated and oxygenated by a heart-lung machine.
ZSF68 在人工心肺机血液循环时用作消泡剂，防止空气进入。
ZSF68 can be used as defoaming agent in heart-lung machine blood circulating to prevent air enter.
术中出血均采用人工心肺机自血回输。
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