valvulotomy

1. They are patients in whom the valvulotomy was least adequate.
   他们是那些最不适于作瓣膜切开术的患者。
2. Comparative study on the treatment of isolated valvular pulmonary stenosis between percutaneous balloon pulmonary valvuloplasty and surgical valvulotomy
   经皮肺动脉瓣球囊成形术与外科治疗单纯性肺动脉瓣狭窄的对比研究

noun

1. incision into a stenosed cardiac valve to relieve the obstruction

   Synonym:    valvotomy