心绞痛由心肌急剧的、暂时的缺血或缺氧所引起。亦可造成性生活困难,主要是由于患者在休息时心功能尚能代偿、一旦从事体力劳动、心肌耗氧量增加,而血供不能同时增加,就会使心肌血液灌注相对不足,而心肌缺血缺氧、则导致心绞痛发作。 Angina is caused by a sudden, temporary ischemia or hypoxia in the myocardium. Can also lead to sexual difficulties, mainly due to patients with heart function can still be compensated at rest, once engaged in manual labor, myocardial oxygen consumption increased, while the blood supply can not be increased at the same time, it will make myocardial blood perfusion is relatively inadequate, and myocardial Ischemia and hypoxia, then lead to angina pectoris.