Related Experiment Video
Updated: Jul 17, 2026

Identification and Protection of the Recurrent Laryngeal Nerve during Transoral Robotic Thyroidectomy
Published on: October 24, 2025
Efficacy of dexamethasone for reducing postoperative nausea and vomiting and analgesic requirements after
Yoshitaka Fujii1, Masahiro Nakayama
1Department of Anesthesiology; University of Tsukuba Institute of Clinical Medicine, Tsukuba City, Ibaraki, Japan. yfujii@med.toho-u.ac.jp
Objective:
To evaluate the efficacy of dexamethasone for reducing postoperative nausea and vomiting (PONV) and analgesic requirements after thyroidectomy.
Study Design And Setting:
In a prospective, randomized, double-blind, placebo-controlled study, 75 patients, 20 men and 55 women, received intravenously placebo or dexamethasone at 2 different doses (4 and 8 mg) (n=25 of each) at the end of surgery. A standard general anesthetic technique was used. PONV and analgesic requirements were evaluated.
Results:
The rate of patients experiencing PONV during the first 24 hours after anesthesia was 64% with dexamethasone 4 mg (P=0.269) and 28% with dexamethasone 8 mg (P=0.001), compared with placebo (76%). The need of indomethacin for intolerable pain was less in patients who had received dexamethasone 8 mg than in those who had received placebo (P=0.009).
Conclusion:
Dexamethasone 8 mg effectively decreases PONV and analgesic requirements after thyroidectomy.
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