Downe, Soo and Finlayson, Kenneth and Melvin, C. and Spiby, Helen and Ali, A. and Diggle, P. and Gyte, G. and Hinder, S. and Miller, V. and Slade, P. and Trepel, D. and Weeks, A. and Whorwell, Peter
Self-hypnosis for intrapartum pain management in pregnant nulliparous women: a randomised controlled trial of clinical effectiveness.
BJOG: An International Journal of Obstetrics and Gynaecology, 122
Objective: (Primary) To establish the effect of antenatal group self-hypnosis for nulliparous women on intra-partum epidural use.
Design: Multi-method randomised control trial (RCT).
Setting: Three NHS Trusts.
Population: Nulliparous women not planning elective caesarean, without medication for hypertension and without psychological illness.
Methods: Randomisation at 28–32 weeks’ gestation to usual care, or to usual care plus brief self-hypnosis training (two × 90-minute groups at around 32 and 35 weeks’ gestation; daily audio self-hypnosis CD). Follow up at 2 and 6 weeks postnatal.
Main outcome measures: Primary: epidural analgesia. Secondary: associated clinical and psychological outcomes; cost analysis.
Results: Six hundred and eighty women were randomised. There was no statistically significant difference in epidural use: 27.9% (intervention), 30.3% (control), odds ratio (OR) 0.89 [95% confidence interval (CI): 0.64–1.24], or in 27 of 29 pre-specified secondary clinical and psychological outcomes. Women in the intervention group had lower actual than anticipated levels of fear and anxiety between baseline and 2 weeks post natal (anxiety: mean difference −0.72, 95% CI −1.16 to −0.28, P = 0.001); fear (mean difference −0.62, 95% CI −1.08 to −0.16, P = 0.009) [Correction added on 7 July 2015, after first online publication: ‘Mean difference’ replaced ‘Odds ratio (OR)’ in the preceding sentence.]. Postnatal response rates were 67% overall at 2 weeks. The additional cost in the intervention arm per woman was £4.83 (CI −£257.93 to £267.59).
Conclusions: Allocation to two-third-trimester group self-hypnosis training sessions did not significantly reduce intra-partum epidural analgesia use or a range of other clinical and psychological variables. The impact of women's anxiety and fear about childbirth needs further investigation.
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