Transcutaneous Electrical Stimulation On Post-episiotomy Pain

Researchers in Brazil assessed the effects of low-frequency and high-frequency TENS, or transcutaneous electrical stimulation on post-episiotomy pain. This randomized, controlled, double-blind trial included the two electrotherapy interventions as well as a control group. TENS was applied for 30 minutes to the three groups: the high-frequency TENS (HFT) (100 Hz, 100 ms) the low-frequency TENS (5 Hz, 100 ms), and the placebo group. Electrode placement was near the episiotomy in a parallel pattern, and pain evaluations were completed before and after TENS application in resting, sitting, and ambulating. (Electrode placement specifics can be found in the article that is available within the above link.) The interventions and pain evaluations were carried out between six and 24 hours after vaginal delivery.

The intensity of the HFT and LFT was controlled by the participants, with instructions to allow the sensation to be both strong and tolerable. A total of 33 participants completed the study, with 11 in the HFT group, 13 in the LFT group, and 9 in the placebo therapy group. The researchers found that for HFT and LFT, pain improved following application of the electrotherapy, and the effects of the pain reduction lasted one hour after the intervention. Because TENS is a low-cost, low-risk modality, TENS use may be a welcome addition for postpartum care following an episiotomy. The women using high or low-frequency TENS in this study reported that TENS was comfortable and that they would opt to use it again.

If you are interested in learning more about postpartum care and issues such as episiotomies which can interfere with return to function, join faculty member Jenni Gabelsberg in Santa Barbara in January. In addition to discussing a wide variety of common musculoskeletal conditions, she will discuss pelvic floor issues following childbirth that can impact a woman's postpartum recovery. Click here to view the learning objectives for Care of the Postpartum Patient as well as additional dates and locations for this course.