Transcutaneous Acupoint Electrical Stimulation with the ReliefBand® for the Prevention of Nausea and Vomiting During and After Cesarean Delivery Under Spinal Anesthesia

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We randomized 94 patients undergoing cesarean delivery with spinal anesthesia to receive transcutaneous acupoint electrical stimulation using the ReliefBand® at the P6 point (active group) or an active ReliefBand® applied to the dorsum of the wrist (sham control group). The ReliefBand® was applied 30–60 min preoperatively and left in place for 24 h. There was no statistically significant difference between the active and sham control groups in the incidence of intraoperative/postoperative nausea (30% versus 43%/23% versus 41%), vomiting (13% versus 9%/26 versus 37%), need for rescue antiemetics (23% versus 18%/34% versus 39%), or complete response (55% versus 57%/51% versus 34%). There was also no difference between the two groups in nausea scores, number of vomiting episodes, or patient satisfaction with postoperative nausea and vomiting management.

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