en in Britain each year BMJ 2002;325:357 分娩痛产生的机制理想的分娩镇痛? dramatically reduce the pain of labour , while allowing the parturient to actively participate in the birthing experience. ? In addition, it should have minimal effect on the fetus or the progress of labour Regional analgesia for labour ? spinal opiates bined spinal- epidural (CSE) analgesia ? patient controlled epidural analgesia ? continuous spinal analgesia ? neuraxial blockade (epidural, spinal, CSE, continuous spinal) provides the most effective and least depressant analgesia ? Epidural analgesia via a catheter technique provides excellent pain relief and the ability to extend the duration of the block to match the duration of labour , but it is not "instant" in onset and may be associated with motor block.
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