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Abstract
Purpose: Induced labor is associated with a higher request for analgesia than spontaneous labor. This study compared duration of labor, mode of delivery, quantity of blood loss, type of perineal outcome and neonatal outcomes between women in induced labor and women in spontaneous labor, both on epidural analgesia (administered at cervical dilation ≤ 4 cm).
Methods: In a two-year longitudinal cohort study, data were gathered from nulliparous women with a single cephalic pregnancy of at least 37 weeks attending the labor and delivery ward in Policlinico San Matteo Fundation-Pavia. Data were compared for women with early labor analgesia in (1) spontaneous labor (Robson group 1) and (2) induced labor (dinoprostone – vaginal insert or gel, Robson group 2a).
Results: Of the 1104 women who underwent epidural analgesia in the study period, 531 were included: 326 in spontaneous labor and 205 in induced labor. The only significant difference found was duration of the first stage, which lasted 305 (200–390) min in spontaneous labor compared to 205 min (120–345) in induced labor (p <0.001).
Conclusions: In women on early epidural analgesia, induction is associated with a shorter duration of the first stage of labor and does not affect other outcomes.
Acknowledgements
We are grateful to Ms Claire Archibald for the careful English editing.
Declaration of interest
The authors report no conflicts of interest. The authors alone are responsible for the content and writing of this article.