Complic ations occurred in 30 cases: wound bleeding 4 cases severe emphysema 9 cases abd ominal distention 2 cases febrile morbidities 10 cases nervus paralysis of right upper extremity 5 cases.

• 腹壁伤口出血 4例 ,皮下气肿 9例 ,腹胀 2例 ,术后发热 10例 ,右上肢神经麻痹 5例。