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Effects of Anesthesia With Nitrous Oxide on Tympanoplasty Outcomes: A Randomized Controlled Trial Publisher Pubmed



Kouhi A1 ; Hajimohammadi F1 ; Dabiri S1 ; Amali A1 ; Enayati N1 ; Manavi S1 ; Saeedi N1 ; Bidar Z1
Authors

Source: Acta Oto-Laryngologica Published:2018


Abstract

Objectives: To investigate effects of nitrous oxide (N2O), as inhalational anesthetic agent, on tympanoplasty outcomes. Methods: In this randomized controlled trial, patients were randomized into two groups: 39 patients who received N2O as an inhalant anesthesia and 47 patients who did not receive. All were operated on with standard type of ear surgery. The protocol for the two groups was identical. Before surgery baseline audiometry was performed. Postoperative audiological controls were carried out at 3 months. Results: There was no statistically significant difference between two groups regarding graft outcomes. No significant differences were found between the two groups regarding air-bone gap or bone conduction hearing level. Conclusions: Nitrous oxide usage does not seem to have significant impact on graft or hearing outcome of patients undergoing surgical repair of tympanic membrane. © 2017 Acta Oto-Laryngologica AB (Ltd).
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