Methods Mitral valve replacement, atrioventricular septal defect repair and coronary arteriovenous fistula orthosis were performed via a right lateral thoracic small incision through the 4th intercostal space. 方法采用右胸外侧小切口、第四肋间入胸行二尖瓣替换,房、室间隔缺损修补,冠状动脉瘘矫治等手术。