IMPACT OF EPIDURAL ANALGESIA ON LABOR OUTCOMES: A PROSPECTIVE COHORT STUDY
Main Article Content
Keywords
Epidural analgesia, Labor outcomes, Cesarean section, Second stage of labor, Neonatal outcomes, Maternal health
Abstract
Background: Labor is often associated with significant pain, which can contribute to maternal exhaustion, stress, and negative childbirth experiences. Effective pain relief is therefore a critical component of obstetric care. Epidural analgesia is widely regarded as the gold standard for labor analgesia due to its superior efficacy compared to systemic opioids or non-pharmacological methods. However, its influence on labor progression, mode of delivery, and neonatal outcomes remains controversial, with prior studies reporting mixed results. While some research suggests an association with prolonged labor and increased operative delivery rates, others have found no adverse impact.
Objective: To assess the impact of epidural analgesia on labor outcomes, specifically the duration of labor stages, mode of delivery, and maternal and neonatal outcomes in a cohort of nulliparous women.
Methods: A prospective cohort study was conducted at a tertiary care Lahore General Hospital Lahore between January to December 2024. A total of 400 nulliparous women with singleton term pregnancies were enrolled and divided into two groups: those who opted for epidural analgesia (n=200) and those who did not (n=200). Data were collected on labor duration, delivery mode, and immediate maternal and neonatal outcomes.
Results: A total of 400 nulliparous women meeting the inclusion criteria were enrolled in the study, with 200 women opting for epidural analgesia (epidural group) and 200 women managing labor without epidural analgesia (non-epidural group). Epidural analgesia was associated with a significantly longer second stage of labor (86.3 ± 22.5 minutes vs. 65.7 ± 18.9 minutes; p<0.001). Although the cesarean delivery rate was higher in the epidural group (19% vs. 13%), the difference was not statistically significant (p=0.09). Neonatal outcomes, including Apgar scores and NICU admission rates, were comparable between groups.
Conclusion: Epidural analgesia during labor prolongs the second stage of labor but does not significantly increase the risk of cesarean delivery or adverse neonatal outcomes. It remains a safe and effective option for labor analgesia when administered appropriately.
References
2. Yin H, Hu R. A cohort study of the impact of epidural analgesia on maternal and neonatal outcomes. Journal of Obstetrics and Gynaecology Research. 2019;45(8):1435-41.
3. Kearns RJ, Shaw M, Gromski PS, Iliodromiti S, Lawlor DA, Nelson SM. Association of epidural analgesia in women in labor with neonatal and childhood outcomes in a population cohort. JAMA network open. 2021;4(10):e2131683-e.
4. Xu C, Wang X, Chi X, Chen Y, Chu L, Chen X. Association of epidural analgesia during labor and early postpartum urinary incontinence among women delivered vaginally: a propensity score matched retrospective cohort study. BMC pregnancy and childbirth. 2023;23(1):666.
5. Li G, Qi X, Tan X, Wu M, Wang H, Wen P, et al. Effect of epidural labor analgesia on maternal and infant outcomes in parturients with gestational diabetes mellitus—A prospective cohort study. Frontiers in Pediatrics. 2022;10:1022291.
6. Hajipour A, Montaseri A, Rahimi M, Orandi A, Rahmah L, Samadi S. The Impact of Epidural Analgesia on Cesarean Section Rates and Neonatal Outcomes: A Retrospective Cohort Study. Acta Medica Iranica. 2023:531-9.
7. Aleksandrovich BK, Munevich SE, Alekseevna GT, Vladimirovna BM, Sharma K, Gupta S. Impact of labor epidural analgesia on maternal and neonatal outcomes with trial of labor in previous caesarean delivery: A prospective, controlled, longitudinal study. Journal of Obstetric Anaesthesia and Critical Care. 2020;10(2):123-30.
8. Olszynska A, Di Martino Z, Pawlowska A, Feduniw S, Modzelewski J, Kajdy A, et al. Epidural analgesia: effect on labor duration and delivery mode—a single-center cohort study. Ginekologia polska. 2023;94(9):733-40.
9. Zeng H, Guo F, Lin B, Liu L, Wei W, He P, et al. The effects of epidural analgesia using low-concentration local anesthetic during the entire labor on maternal and neonatal outcomes: a prospective group study. Archives of Gynecology and Obstetrics. 2020;301:1153-8.
10. Zanfini BA, Catarci S, Vassalli F, Laurita Longo V, Biancone M, Carducci B, et al. The Effect of Epidural Analgesia on Labour and neonatal and maternal outcomes in 1, 2a, 3, and 4a Robson’s classes: a propensity score-matched analysis. Journal of Clinical Medicine. 2022;11(20):6124.
11. Wong CA, Stevens H. Labor epidural analgesia and autism spectrum disorder: is there an association? JAMA. 2021;326(12):1155-7.
12. Callahan EC, Lee W, Aleshi P, George RB. Modern labor epidural analgesia: implications for labor outcomes and maternal-fetal health. American journal of obstetrics and gynecology. 2023;228(5):S1260-S9.
13. Kurawa MI, Lynda AS. Assessment of the Changes in Pain Threshold and Tolerance in Relation to Labor Pain Perception Before and after Delivery Among Primigravidae in Kano, Nigeria.
14. Høtoft D, Maimburg RD. Epidural analgesia during birth and adverse neonatal outcomes: A population-based cohort study. Women and Birth. 2021;34(3):e286-e91.
15. Yinges M, Buli B, Abebe M. Factors Associated With Maternal Dissatisfaction towards Spinal Anesthesia among Parturients Give Birth with Cesarean Section at Hawassa University Comprehensive Specialized Hospital, 2023: Cross-Sectional Study. 2023.
16. Sharawi N, Williams M, Athar W, Martinello C, Stoner K, Taylor C, et al. Effect of dural-puncture epidural vs standard epidural for epidural extension on onset time of surgical anesthesia in elective cesarean delivery: a randomized clinical trial. JAMA Network Open. 2023;6(8):e2326710-e.