通过新鲜的正常人心脏标本32例在很似体外循环中心脏于舒张期停跳状态下,用自制测瓣器测定主动脉瓣环直径,计算其周长等。根据结果讨论了在主动脉瓣置换术中人造瓣大小的选择,术中注意主动脉瓣的左后与右后瓣叶与二尖瓣前叶的联属关系以及心脏外科医生应掌握有关扩大小主动脉瓣环的技术,以便取想满意的手术效果。 32 fresh heart samples were obtained from the heart of a normal cardiopulmonary bypass with diastolic arrest. The diameter of the aortic annulus was measured with a self-made sphygmomanometer and its perimeter was calculated. According to the results of the discussion of aortic valve replacement in the selection of artificial valve size, intraoperative attention to the aortic valve left posterior and posterior mitral valve leaflets and anterior mitral anterior relationship and cardiac surgeons should master the expansion of the main Artery valve ring technology, in order to obtain satisfactory surgical results.