Foley balloons are commonly used as a mechanical method of cervical ripening for induction of labor. Foley balloons may be placed either under tension or without tension (tension-free). The purpose of our study is to examine time to delivery in nulliparous women undergoing induction of labor who have a Foley balloon placed as a mechanical cervical dilator, assigned to either tension or without tension. The goal is to determine if there is a potential added benefit to placing the Foley balloon on tension as compared to no tension. Our hypothesis is that Foley balloon under tension for cervical ripening results in shorter time to vaginal delivery compared to Foley balloon placed without tension.
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Time to Vaginal Delivery
Timeframe: Foley bulb placement to vaginal delivery, up to 24 Hours