抑肽酶是一种从牛肺脏提取的天然丝氨酸蛋白酶抑制剂 ,因为具有减少出血和输血的作用 ,已经被广泛地应用于外科手术。同其它外源性蛋白质一样 ,抑肽酶具有抗原性 ,能够引起过敏反应。抑肽酶过敏反应是医学上的紧急情况。因此 ,在使用抑肽酶前应仔细评估预期好处与潜在的致敏危险性 Aprotinin, a natural serine protease inhibitor extracted from bovine lungs, has been widely used in surgery because of its ability to reduce bleeding and blood transfusions. Like other exogenous proteins, aprotinin is antigenic and can cause allergic reactions. Aprotinin anaphylaxis is a medical emergency. Therefore, prospective benefits and potential sensitization risks should be carefully evaluated before aprotinin use