排便次数减少,每2～3 d或更长时间排便一次,无规律性,粪质干硬,常伴有排便困难感,称为便秘[1]。便秘患者用力排便会使腹压和心内压力增加,导致心率加快,心肌收缩力增强,心脏负担急剧增加,从而心肌耗氧显著增加,极易诱发心绞痛,严重者可引起急性心肌梗死,甚至猝死等并发 Reduced defecation frequency, every 2 ~ 3 d or longer defecation time, irregular, fecal dry and hard, often accompanied by difficulty in defecation, known as constipation [1]. Constipation in patients with forced bowel movements will make abdominal pressure and intracardiac pressure, leading to faster heart rate, myocardial contractility increased sharply increased cardiac burden, which significantly increased myocardial oxygen consumption, can easily lead to angina pectoris, severe cases can cause acute myocardial infarction, and even sudden death Other concurrent