• Shuying Lee, Eileen Lew, Yvonne Lim, and Alex T Sia.
• Department of Women's Anesthesia, KK Women's and Children's Hospital, Singapore, Republic of Singapore.
• Anesth. Analg. 2009 Jan 1;108(1):252-4.

AbstractIn this study, we aimed to identify the incidence and predictive factors associated with failed labor epidural augmentation for cesarean delivery. Data of parturients, who had received neuraxial labor analgesia and who subsequently required intrapartum cesarean delivery during an 18-mo period, were retrospectively studied. Predictors associated with failure of extension of epidural analgesia in the presence of adequate time for onset of epidural anesthesia were identified by univariate logistic regression. Of the 1025 parturients, 1.7% had failed epidural extension. Predictors of failed epidural anesthesia included initiation of labor analgesia with plain epidural technique (compared to combined spinal-epidural) (P = 0.001), >or=2 episodes of breakthrough pain during labor (P < 0.001) and prolonged duration of neuraxial labor analgesia (P = 0.02).

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