患者男，76岁。因心悸、心前区隐痛1周，加剧0．5h入院。患者于1周前开始自觉心悸、心前区呈阵发性隐痛，每次持续2～3min，每d发作2～4次。发作前无明显诱因。有高血压病史3年，无正规治疗。体检：BP24／14kPa，P80次／min，R32次／min，发育正常，营养中等，呼吸稍促，唇发纣 Male patient, 76 years old. Due to heart palpitations, precordial pain a week, increased 0.5h admission. Patients began to feel palpitations a week ago, precordial paroxysmal pain, each lasting 2 ~ 3min, every 2 to 4 episodes of attack. Before the attack no obvious incentive. A history of hypertension for 3 years, no formal treatment. Physical examination: BP24 / 14kPa, P80 beats / min, R32 beats / min, normal development, moderate nutrition, shortness of breath, lip balm