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. 1985 Dec;92(12):1246-50.
doi: 10.1111/j.1471-0528.1985.tb04870.x.

Uterine activity in the second stage of labour and the effect of epidural analgesia

R G Bates, C W Helm, A Duncan, D K Edmonds

Uterine activity in the second stage of labour and the effect of epidural analgesia

R G Bates et al. Br J Obstet Gynaecol. 1985 Dec.

Abstract

Uterine activity was measured during the second stage of normal labour in 20 patients with and 31 patients without epidural analgesia. There was a significantly lower uterine activity integral (UAI) in patients having epidural analgesia, and it is suggested that this may contribute to the increased rate of instrumental delivery associated with epidural analgesia.

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