张师傅患有慢性胆囊炎多年,近日在饱餐后感到上腹部钝痛,偶尔向肩部放射,与此同时还感到有些胸闷不适、心悸等。张师傅去医院检查,结果显示慢性胆囊炎合并感染,并有心电图异常,表现为房性期前收缩和ST-T段改变。张师傅担心又患了心脏病,而主治医生告诉他并 Master Che Ching has chronic cholecystitis for many years, recently feels dull pain on the abdomen after a meal, and occasionally to the shoulder radiation, at the same time also feel some chest discomfort, palpitations and so on. Master Zhang went to the hospital for examination, the results showed that chronic cholecystitis with infection, and ECG abnormalities showed atrial contraction and ST-T segment changes. Master Zhang worried about suffering from heart disease, and the attending doctor told him and