Speakers - 2026

Title: Role of TENS in vaginal delivery

Abstract

Background: Labor pain is a severe physiological experience, and non-pharmacological methods are sought to enhance maternal comfort without negatively affecting the fetus or labor progress. Transcutaneous Electrical Nerve Stimulation (TENS) is a non-invasive technique that provides pain relief by emitting low-voltage electrical impulses, which are believed to block pain signals (gate-control theory) and promote the release of endorphins. 

Methods: This review synthesizes findings from randomized clinical trials (RCTs) and systematic reviews (2020–2025) comparing TENS to placebo or standard care during vaginal delivery. TENS is typically applied with electrodes on the lower back (paravertebral regions T10–L1 and S2–S4) during the active phase of labor. 

Results:

• Pain Reduction: Studies indicate that TENS is an effective, non-invasive analgesic method that significantly reduces pain scores (using the Visual Analog Scale) compared to placebo or no intervention. It is particularly effective for managing back pain during labor, with some studies reporting 70% of women finding it effective.
• Labor Progression & Safety: TENS is associated with a shorter duration of the first stage of labor. It does not increase the risk of cesarean sections or instrumental deliveries. Studies show no significant adverse effects on the fetus, and Apgar scores are comparable to those in control groups.
• Satisfaction: High maternal satisfaction rates are reported, with many women willing to use TENS in future deliveries due to the ability to maintain mobility and control over the device. 

Conclusion: TENS is a safe, effective, and cost-effective adjuvant method for managing pain during vaginal delivery. It offers a valuable non-pharmacological alternative to traditional labor analgesia, providing significant pain reduction while improving the overall childbirth experience.