During operation ECG monitoring showed no ischemic ST-T changes.

Aim: To explore the appropriate dose of the verapamil and propranolol in kalium cardiaplegia(KVP) by observation of the effect on the function of ischemic immature rat heart and compared with ST.

MCG can detect displacement of ST-segment caused by electric current due to ischemic myocardial injury and is helpful in early diagnosis of coronary heart disease.