Dilapan-S and Foley for Cervical Ripening During an Induction
Assignment Instructions:
Read or listen to the presentation and write 2–3 paragraphs about two take-home points
from this presentation. Upload this to the extra credit drop box. Each topic is worth two
points. You may earn a maximum of 10 extra credit points. The drop box allows you to
upload more than one item.
Module 4 Unit B
2. EBB podcast on mechanical cervical ripening
https://evidencebasedbirth.com/evidence-on-dilapan-s-and-foley-for-cervical-ripening-
during-an-induction/
, Introduction
The Evidence Based Birth (EBB) podcast on mechanical cervical ripening provides a
comprehensive review of the research on using mechanical methods, specifically
Dilapan-S and Foley catheters, for cervical ripening before induction of labor. The host,
Rebecca Dekker, PhD, RN, presents a detailed synthesis of the latest clinical trials,
meta-analyses, and systematic reviews to help clinicians and birthing people make
informed decisions. The discussion emphasizes both the effectiveness and safety profiles
of mechanical ripening methods compared to pharmacologic agents such as
prostaglandins or misoprostol. The episode also addresses practical considerations like
timing, patient comfort, and the need for shared decision-making to support respectful
and individualized maternity care.
First Take-Home Point: Effectiveness and Safety of Mechanical Methods
The first key takeaway from this episode is that mechanical methods such as Dilapan-S
and Foley catheters are effective, evidence-based alternatives to pharmacological agents
for cervical ripening. Clinical evidence suggests that both devices successfully increase
Bishop scores and reduce induction-to-delivery intervals without increasing the risk of
cesarean delivery. In particular, randomized controlled trials have demonstrated that
Dilapan-S—a hygroscopic rod that expands as it absorbs fluid—is comparable in efficacy
to the Foley catheter and prostaglandins but with fewer side effects such as uterine
hyperstimulation (Ten Eikelder et al., 2016). Furthermore, mechanical methods pose a
lower risk of tachysystole and fetal distress compared to pharmacologic methods, making
them a suitable choice for patients with prior cesarean sections or contraindications to