30只犬导管电击房室交界区后血清CK和CK-MB活性均较电击前升高且与电击总量(每次电击量×电击次数)成正比。当电击总量<100焦耳(J)时,血清CK-MB活性升高不明显。所有电量组血清CK-MB/CK(%)值在电击后均较电击前下降,说明导管电击房室交界区对心肌有一定损伤,并伴有非心肌来源的CK活力升高。 The serum CK and CK-MB activities of 30 canine catheter atrioventricular junctional areas were higher than those before the shock and were directly proportional to the total number of shocks (the number of shocks / number of shocks). When the total electric shock <100 J, the serum CK-MB activity was not significantly increased. The serum CK-MB / CK (%) values ​​of all battery groups were lower than those before electric shock after shock, indicating that the conduit shock atrioventricular junctional area has some damage to the myocardium, accompanied by an increase in CK activity of non-cardiac muscle.