The study was conducted to test the efficacy of several neuromuscular monitoring modes at the P6 acupuncture point for preventing PONV. The researchers evaluated 264 women undergoing laparoscopic hysterectomy for PONV. Neuromuscular blockade was monitored by acceleromyography with 1-Hz single switch over the ulnar nerve, and ST, train-of-four, double-burst simulation or tetanus over the median nerve stimulating at the P6 acupuncture point.
Tetanic stimulation significantly reduced incidence of PONV, requests for patient-controlled analgesia and total patient-controlled analgesia volume, according to the study.
Read the abstract of the study in Anesthesia & Analgesia.
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