[Influence of combined spinal-epidural analgesia and epidural analgesia on the progress of labor].

Objective: To investigate the influence of combined spinal-epidural analgesia (CSEA) and epidural analgesia (EA) and patient-controlled epidural analgesia (PCEA) on labor progress.

Methods: The partograms of 722 healthy vaginal delivery nulliparas were retrospectively analyzed in Department of Obstetric and Gynecology, First Hospital of Peking University. Three groups were divided among all subjects: CSEA group (259 cases) receiving CSEA + PCEA, EA group (215 cases) receiving EA + PCEA and control group (248 cases) without any analgesia method.