Objective To investigate the rate of incidence, cause, treatment and recovery of cephalic presentation dystocia.

目的探讨头位难产的发生率、常见原因、处理方法及预后。

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Objective: To determine the diagnosis, surveillance and delivery method for pregnancies with nuchal cord and cephalic presentation.

目的：探讨脐带绕颈的诊断，监护时机及分娩方式的选择。

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Results:The incidence of cephalic presentation dystocia was 17.91%, among which abnormality direction of fetal head was the major cause of dystocia and the incidence was 76.84%.

结果：头位难产的发生率为17.91%，其中胎头方位异常占头位难产总数的76.84%，是发生难产的主要原因。

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