冠心病患者,常在家中发生心绞痛、心律失常,严重时还可发生心肌梗死或猝死。因此,病人自己及家属掌握一些急救知识,是非常必要的。心绞痛一般于体力活动或精神紧张时出现,常为胸骨后紧缩或压迫感,严重时可伴出冷汗,并可放射到左肩或左臂内侧。心绞痛发作时应立即停止体力活动, Coronary heart disease patients often have angina at home, arrhythmia, severe myocardial infarction or sudden death may occur. Therefore, patients themselves and their families have some first aid knowledge is very necessary. Angina generally appear during physical activity or mental stress, often after the contractions or compression of the sternum, severe cold sweats can be associated with, and can radiate to the left shoulder or left arm medial. Angina pectoris should stop physical activity immediately,