Click R L, Spittell J A, Puga F J
Division of Cardiovascular Diseases and Internal Medicine, Mayo Clinic, Rochester, MN 55905.
Mayo Clin Proc. 1988 Apr;63(4):368-72. doi: 10.1016/s0025-6196(12)64859-9.
Chest pain in a young person is often caused by chest wall tenderness, associated with mitral valve prolapse, or attributed to psychologic factors. Ischemic cardiac pain may be overlooked because of its rare occurrence in this age group. A 35-year-old woman complained of substernal chest pressure precipitated by exertion and relieved by rest. The symptom had been noted for 15 years. Worsening of the symptom during dancing prompted her to seek medical advice. She had no other illnesses, was taking no medications, was a nonsmoker, and had no family history of coronary disease. Physical examination disclosed a grade 1 (on the basis of 1 to 6) systolic ejection murmur, an ejection click, and a grade 2 diastolic murmur. An exercise test produced symptoms at 4 minutes. Coronary arteriography showed the absence of a left coronary ostium and filling of the entire coronary system from the right ostial injection through collateral vessels from the right coronary artery. Surgical repair was recommended. Operative intervention showed a dysplastic bicuspid aortic valve with a membrane that covered the left coronary ostium. Excision of the membrane reestablished antegrade blood flow to the left coronary system. A follow-up exercise test revealed normal findings. Because chest pain in a young person is rarely ischemic in origin, benign or noncardiac causes are usually considered; however, if the history suggests ischemic pain, the possible presence of unusual cardiovascular abnormalities should not be disregarded.
年轻人胸痛常由胸壁压痛、与二尖瓣脱垂相关或归因于心理因素引起。缺血性心脏疼痛可能因其在该年龄组中罕见而被忽视。一名35岁女性主诉劳力后出现胸骨后压榨感,休息后缓解。该症状已持续15年。跳舞时症状加重促使她寻求医疗建议。她无其他疾病,未服用任何药物,不吸烟,且无冠心病家族史。体格检查发现1级(基于1至6级)收缩期喷射性杂音、喷射性喀喇音和2级舒张期杂音。运动试验4分钟时出现症状。冠状动脉造影显示左冠状动脉开口缺失,通过右冠状动脉侧支血管经右冠状动脉开口注射使整个冠状动脉系统显影。建议进行手术修复。手术干预显示为发育异常的二叶式主动脉瓣,有一膜状物覆盖左冠状动脉开口。切除该膜状物后恢复了左冠状动脉系统的顺行血流。随访运动试验结果正常。由于年轻人胸痛很少源于缺血,通常考虑良性或非心脏原因;然而,如果病史提示为缺血性疼痛,则不应忽视可能存在的不寻常心血管异常情况。