病历摘要病人男,16岁。因活动后心慌、憋气9年,加重2个月,血压下降2天于1981年10月12日急症入院。病人于9年前始感心慌、憋气、休息后即完全缓解。此后,每逢冬季,着凉或劳累,便心慌、气急、且逐年加重。病后曾多次就诊,均根据胸骨左缘3、4肋间闻 Summary medical records Male, 16 years old. After the event because of palpitation, suffocation 9 years, increased 2 months, blood pressure dropped 2 days in October 12, 1981 emergency admission. The patient began to feel flustered nine years ago, feeling suffocated and completely relieved after the break. Since then, every winter, cold or tired, they palpitation, shortness of breath, and increasing year by year. Has repeatedly visited after illness, are based on the left sternal intercostal 3,4 hearing