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. 2021 Sep;47(9):3171-3178.
doi: 10.1111/jog.14907. Epub 2021 Jun 23.

Dinoprostone vaginal insert (DVI) versus adjunctive sweeping of membranes and DVI for term induction of labor

Anju Bhatia  1 , Puay Ling Teo  2 , Mingyue Li  3 , Jia Ying Beatrice Lee  1 , Mei Xin Joanne Chan  1 , Tai Wai Yeo  3 , Manisha Mathur  3 , Shephali Tagore  1 , George S H Yeo  1 , Sabaratnam Arulkumaran  4
Affiliations

Dinoprostone vaginal insert (DVI) versus adjunctive sweeping of membranes and DVI for term induction of labor

Anju Bhatia et al. J Obstet Gynaecol Res. 2021 Sep.

Abstract

Aim: To compare the efficacy and safety of dinoprostone vaginal insert (DVI) alone versus DVI with adjunctive sweeping of membranes (ASM) for induction of labor (IOL).

Methods: Single-center, prospective, randomized controlled trial; women with singleton term pregnancies, cervical dilation ≥1 and <3 cm, intact membranes allocated to either DVI or DVI with ASM. The primary outcome was vaginal delivery within 24 h of insertion. Secondary outcomes included mean time from insertion to delivery, tachysystole, operative delivery for non-reassuring fetal status (NRFS), tocolytics, fetal outcomes, pain information, and subject satisfaction.

Results: One hundred and four received DVI (Group 1) alone and 104 DVI with ASM (Group 2). The rate of vaginal delivery within 24 h was 53% versus 56%, cesarean rate 8.7% versus 10.6% in Groups 1 and 2 respectively. Although the duration of labor was similar in both groups, about 6% of women required additional ripening with dinoprostone vaginal tablets in Group 2 compared to 11.5% in Group 1 (p-value = 0.2). The frequency of hyperstimulation syndrome, failed induction, analgesic requirements, and fetal outcomes were comparable. The majority (83%-86%) in either cohort were satisfied with their labor experience. Multivariate logistic regression demonstrated a slightly better chance for vaginal delivery within 24 h (odds ratio [OR] 1.22 [95% confidence interval, CI 0.65-2.29]; p-value 0.53] for DVI with ASM, although statistically insignificant. Younger maternal age and multiparity (OR 10.36 [95% CI 4.88-23.67]; p-value <0.0001) contributed to successful IOL.

Conclusion: DVI with ASM is at least as efficacious as DVI for cervical ripening with no increase in morbidity. Although DVI with ASM group less often needed additional dinoprostone tablets to complete the process of IOL (p-value = 0.2), adjunctive sweeping has not been shown to have a significant impact on the duration of labor or mode of delivery.

Keywords: cervical ripening; dinoprostone vaginal insert; hyperstimulation; labor induction; patient comfort; vaginal delivery.

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Conflict of interest statement

This study was funded by a commercial manufacturer of the dinoprostone slow release pessary product used for this study (Cervidil, Ferring, UK).

Figures

FIGURE 1
FIGURE 1
Patient flowchart according to the CONSORT statement
See this image and copyright information in PMC

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