5 cases devel-oped vena iliaca external thrombosis(VIET) or throm-bophlebitis postoperatively. Three of them recoveredafter treatment,and 2 died of pulmonary embolism 7and 16 days after operations. VIET is a very seriouscomplication.

• 术后并发髂外静脉血栓和血栓性静脉炎5例，经治疗痊愈3例，另2例因并发急性肺栓塞分别于术后第7天和第16天死亡。