Middle-ear barotrauma after hyperbaric oxygen therapy.

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Middle-ear barotrauma after hyperbaric oxygen therapy.

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Title: Middle-ear barotrauma after hyperbaric oxygen therapy.
Author: Bessereau, J; Tabah, A; Genotelle, N; Francais, A; Coulange, M; Annane, D
Abstract: BACKGROUND: Middle-ear barotrauma (MEB) is one of the most common side effects of hyperbaric oxygen therapy (HBO2). The incidence of MEB has been shown to vary between treatment centers and patients. This study was aimed to determine which patients are at high risk of MEB. MATERIALS AND METHODS: Prospective study including all the patients treated in a multiplace HBO2 chamber between January and December 2005. Scoring of MEB before and after HBO2 by otoscopy was performed using the Haines and Harris classification. RESULTS: We included 130 patients: 53 Males, 37.5 +/- 20.5 years old; 76 percent were treated for CO poisoning, 11 percent for iatrogenic gas embolism, 12 percent for decompression sickness and 4 percent for necrotizing soft tissue infection. 13 percent were intubated. MEB occurred in 13.6 percent of the patients (12.4 percent of the conscious and 24.4 percent of the intubated patients, p = 0.26). Risk factors for MEB were: repetitive treatments and difficulties with pressure equalization. There was no influence of age, sex or mechanical ventilation on the occurrence of MEB. CONCLUSIONS: MEB induced by HBO2 occurred in 13.6 percent of the patients. There is no difference in incidence when comparing intubated and non-intubated patients. In non-comatose patients, difficulties with equalizing pressure were predictive of MEB.
Description: Undersea and Hyperbaric Medicine : Journal of the Undersea and Hyperbaric Medical Society, Inc.
URI: http://archive.rubicon-foundation.org/9543
Date: 2010

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