RESUMO
OBJECTIVE: To assess the role of acupuncture for analgesia during labour. DESIGN: Double-blind study of manual, electro and sham acupuncture, and single-blind study comparing acupuncture with a control group for analgesia for labour induction. SETTING: A major obstetric unit in the UK. POPULATION: A cohort of 105 nulliparae undergoing labour induction at term. METHODS: Twenty-three subjects needed to be randomised to each group to have an 80% power of detecting a 50% relative reduction in epidural rate with an alpha value of 0.05. MAIN OUTCOME MEASURES: The primary end point was the rate of intrapartum epidural analgesia, and the secondary end points were parenteral analgesia requirement, labour length, delivery mode, neonatal condition and postpartum haemorrhage. RESULTS: There was no difference in epidural analgesia between acupuncture and sham acupuncture, relative risk 1.18 (95% CI 0.8-1.74), or between acupuncture and control, relative risk 0.88 (95% CI 0.66-1.19). There were no significant differences in the secondary end points between the acupuncture groups and the control group. Side effects or complications of acupuncture were not identified. CONCLUSIONS: Using the protocols studied, there was no analgesic benefit with acupuncture for pain relief during induced labour in nulliparae.