International journal of obstetric anesthesia
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Int J Obstet Anesth · Apr 1999
Are women requiring unplanned intrapartum epidural analgesia different in a low-risk population?
We studied 645 full-term low-risk women in early labour in 6 units to evaluate the effects of maternal characteristics and obstetric management in early labour on the use of epidural analgesia, and to analyse the relationship between epidural analgesia, progress of labour and mode of delivery using multiple logistic regression. Among variables present in early labour, nulliparity, ethnicity and obstetric unit were the strongest predictors of epidural analgesia requirement. In nulliparous women, obstetric unit affected use of epidural analgesia (P<0.05) and induction of labour was associated with increased use of epidural analgesia (odds ratio 3.45, 95% CI: 1.45-7.90). ⋯ Furthermore, rate of cervical dilation was similar in the non epidural group throughout the first stage (mean 3.41 cm/h, 95%CI: 3.19-3.63) and in the epidural group after epidural analgesia decision (mean 3.99, 95% CI: 2.96-5.02), while the mean cervical dilatation rate before epidural analgesia was 0.88 cm/h (95% CI: 0.72-1.04). The need for epidural analgesia is, therefore, multifactorial and difficult to predict. Whereas nulliparity increases epidural analgesia requirement, data on the progress of labour before pain relief suggest that epidural analgesia is a marker of pain severity and/or labour failure rather than the cause of delayed progress in low-risk pregnancies.
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Preeclampsia/eclampsia affects only a small proportion of all pregnancies, yet accounts for much of the obstetric morbidity and mortality seen in the USA and UK. A full understanding of preeclampsia/eclampsia, its variable presentation and complex pathophysiology allows the consulting anesthesiologist to optimize a plan for anesthetic management of the afflicted patient.
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A retrospective audit of obstetric epidurals was performed at Royal Surrey County Hospital. The aim was to determine the efficacy of epidural blood patch in the management of post-dural puncture headache following inadvertent dural puncture in the obstetric population, over a 5-year period between March 1993 and February 1998. ⋯ Following treatment with one epidural blood patch, 33% of patients obtained complete and permanent relief, 50% partial relief and 12% no relief. Twenty-nine percent of patients required a second epidural blood patch of which 50% were completely successful, 36% were partially successful and 14% gave no relief.