Balloon cervical ripening with extra-amniotic infusion of saline or prostaglandin E2: a double-blind, randomized controlled study.


OBJECTIVE To compare extra-amniotic infusion of diluted prostaglandin (PG) E2 solution with saline infusion in balloon cervical ripening and labor induction. METHODS Women with pregnancy complications and Bishop scores of 3 or lower (n = 116) were assigned randomly to receive extra-amniotic infusion (1 mL/minute) of normal saline or PGE2 in saline (0.5… (More)