Pulsed Electromagnetic Fields for Postsurgical Pain Management in Women Undergoing Cesarean Section

Maryam Khooshideh, Seyedeh Sakineh Latifi Rostami, Mahdi Sheikh, Batool Ghorbani Yekta, Ali Shahriari
In: The Clinical Journal of Pain · 2016 · vol. 33(2) , pp. 142–147 · doi:10.1097/ajp.0000000000000376 · PMID:28060214 · W2328601674
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Abstract

OBJECTIVES: To evaluate the efficacy of pulsed electromagnetic field (PEMF) in relation to reducing postoperative pain, analgesic use, and wound healing in patients undergoing Cesarean section (C-section). METHODS: This randomized, double-blind, placebo-controlled trial evaluated 72 women who underwent elective C-section. Thirty-six patients were assigned to the active-PEMF and 36 to the sham-PEMF groups. The participants were asked to report their pain intensity on a Visual Analog Scale (VAS) at 2, 4, 6, 12, and 24 hours and 2, 4, and 7 days after surgery. The amount of analgesics used was recorded. The surgical site was evaluated to assess the wound-healing process on the seventh postoperative day. RESULTS: Postoperative pain VAS scores were significantly lower in the active-PEMF group in all the measured periods within the early and the late postoperative periods. Fewer women in the active-PEMF group experienced severe postoperative pain within 24 hours postoperatively (36% vs. 72%, P=0.002). Analgesic use during the first 24 hours after C-section was 1.9-times lower in the active-PEMF group (1.6±0.7 vs. 3.1±1.2, P<0.001). The total analgesic use during the seventh postoperative days was 2.1-times lower in the active-PEMF group than in the sham group (1.7±0.7 vs. 3.7±1.1, P<0.001). Seven days postoperatively, patients in the active-PEMF group had better wound healing with no exudate, erythema, or edema (P=0.02). CONCLUSIONS: PEMF treatment after C-section decreases postsurgical pain, analgesic use, and surgical wound exudate and edema significantly, and is associated with a high level of patient satisfaction.

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