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Digital versus speculum insertion of Foley catheter for labor induction: A systematic review and meta-analysis of
Saeed Baradwan1, Majed Saeed Alshahrani2, Rayan AlSghan3
1Department of Obstetrics and Gynecology, King Faisal Specialist Hospital and Research Center, Jeddah, Saudi Arabia.
Objective:
To compare Foley catheter insertion by digital blind method to its placement with a sterile speculum in women with unripe cervix for induction of labor.
Methods:
A systematic search was conducted in Cochrane Library, PubMed, Web of Science, and Scopus databases for randomized clinical trials (RCTs) from inception to July 2023. Included studies compared digital to speculum placement of the Foley catheter for labor induction. Data from the included studies were extracted and pooled using RevMan software for meta-analysis. The primary outcome was pain score during the procedure measured by the Visual Analog Scale (VAS). Secondary outcomes included Foley catheter insertion duration, cesarean delivery rate, induction to delivery interval, Bishop score, need for other cervical ripening methods, maternal satisfaction, and maternal fever.
Results:
Four RCTs involving a total of 600 patients met the inclusion criteria. Pain during the procedure and Foley catheter insertion duration were significantly reduced in the digital insertion group compared to the speculum-guided group (p < 0.05). The Bishop score showed a significant improvement in the digital Foley catheter placement group. However, there were no statistically significant differences in the cesarean delivery rate or the requirement for additional cervical ripening methods between the two groups. Maternal satisfaction with the delivery process was significantly improved in the digital insertion group (p < 0.001). Induction to delivery interval and maternal fever were comparable between both groups.
Conclusions:
Digital placement of Foley catheter can be considered as an alternative to the sterile speculum method for pre-induction cervical ripening. More trials are required to confirm our findings.
