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１ 引言 肩难产是危及母儿安全的产科急症之一，临床往往难以预见其发生。肩难产的并发症一旦发生，容易引起医疗纠纷，其诊断和处理正确与否，是衡量产科质量的指标之一。我院１９８５年１月至１９９７年１２月间经阴道分娩８５６９名，发生肩难产３２例，发生率０．３７％，
1 Introduction Shoulder dystocia is one of the obstetric emergencies endangering the safety of mother and child, clinical often difficult to predict its occurrence. If the complications of shoulder dystocia occur, it is easy to cause medical disputes. Its diagnosis and treatment are correct or not. It is one of the indicators to measure the quality of obstetrics. Our hospital from January 1985 to December 1997 vaginal delivery 8569, 32 cases of shoulder dystocia, the incidence rate of 0.37%