A Brazilian group has shown that electro-acupuncture (EA) can be used to promote labour as efficiently as the prostaglandin analogue misoprostol, but with fewer obstetric complications. Sixty-seven pregnant women in labour were randomised to receive either EA or misoprostol. Women who received EA experienced significantly fewer obstetric complications, along with a significantly higher frequency of vaginal deliveries.  Although they tended to have a longer duration of labour, there was also a tendency to higher patient satisfaction among patients of the EA group. (Electroacupuncture for cervical ripening prior to labour induction: a randomized clinical trial. Arch Gynecol Obstet. 2011 Jun;283(6):1233-8).