Morgan B, Bulpitt C J, Clifton P, Lewis P J
Br Med J (Clin Res Ed). 1982 Sep 11;285(6343):689-90. doi: 10.1136/bmj.285.6343.689.
The amount of pain that had been experienced by 1000 women during vaginal delivery of a live child was determined by interview within 48 hours of delivery. Patients had been offered a choice of analgesia, and 536 had received epidural analgesia: pain relief was greatest in this group, just over half having had a painless labour. The duration of pain was also reduced by a third in this group even though patients who had received an epidural block had tended to have longer labour and an incidence of assisted delivery of 51% compared with 6% in the remainder. Seventy-two per cent of the patients receiving an epidural had had as much pain as they had expected. A similar proportion (70%) was reported with simpler analgesic methods, suggesting that women may expect a certain amount of pain in labour and request further analgesic treatment when this is exceeded.
通过在分娩后48小时内进行访谈，确定了1000名妇女在顺产活婴过程中所经历的疼痛程度。患者可以选择镇痛方式，536人接受了硬膜外镇痛：该组的疼痛缓解效果最佳，超过一半的人实现了无痛分娩。尽管接受硬膜外阻滞的患者分娩时间往往较长，助产发生率为51%，而其余患者为6%，但该组的疼痛持续时间也缩短了三分之一。接受硬膜外镇痛的患者中有72%经历的疼痛程度与预期相同。采用更简单镇痛方法的患者也有类似比例（70%）报告了相同情况，这表明女性在分娩时可能预期会有一定程度的疼痛，当超过这个程度时就会要求进一步的镇痛治疗。
