病史 患儿男性10岁,住院号A6376。生后发现紫绀,哺乳及哭闹时尤著。稍活动后可见呼吸困难,并且常有阵发性晕厥,持续十数分钟,经休息可缓解。无活动中的蹲踞史。 理学检查 血压94/60、脉搏86次、体温36.6、呼吸24次。有紫绀及杵状指趾。营养欠佳,智力正常。轻度鸡胸、心尖搏动弥散,胸骨左缘第2～4肋间可闻及Ⅳ级粗糙的全收缩期杂音,向左腋下及颈部传导, A 10-year-old boy with a history of hospitalization A6376. After birth, cyanosis, especially when breastfeeding and crying. A little activity can be seen after breathing difficulties, and often have paroxysmal fainting, sustained for ten minutes, by rest can be alleviated. No activities squat history. Neutropenia 94/60, pulse 86, body temperature 36.6, breathing 24 times. There are cyanosis and clubbing toe. Poor nutrition, mental normal. Mild chicken breast, apex pulsation dispersion, sternal left margin 2 to 4 intercostal can be heard and Ⅳ rough systolic murmur to the left axillary and neck conduction,