• Poopak Izadi, Parvin Delavar, Mohammad Ebrahim Yarmohammadi, Naimeh Daneshmandan, and Maryam Sadrameli.
• Department of Otolaryngology, School of Medicine, Shahid Mostafa Khomeini Hospital, Shahed University, Italia Ave, Keshavarz Blvd, Tehran, 1466947893, Iran. popakizadi@yahoo.com.
• Eur Arch Otorhinolaryngol. 2016 May 1; 273 (5): 1215-9.

AbstractNausea and vomiting are two of the most common complications of tonsillectomy in children. Administration of supplemental 80 % oxygen during surgery reduces the incidence of postoperative nausea and vomiting. We aimed to test the efficacy of supplemental 80 % oxygen during tonsillectomy on postoperative nausea and vomiting. In a randomized controlled trial in Shahid Mostafa Khomeini Hospital in Tehran, 102 children scheduled for tonsillectomy (± adenoidectomy) under general anesthesia were divided randomly in two groups according to percent of administered oxygen (group 1:30 % oxygen, group 2:80 % oxygen). The incidence of postoperative nausea and vomiting were assessed and compared in 0-2, 2-6 and 6-24 h after surgery. Incidence of post-tonsillectomy nausea and vomiting after 2, 2-6, and 6-24 h was 13.72, 1.96 and 1.96 % for group 1 and 3.92, 0 and 1.96 % in group 2, respectively. We found no statistically significant difference between two groups (P = 0.08) but 80 % oxygen was beneficial for reducing postoperative nausea and vomiting in the first 2 h after surgery in group 2.

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