Incidence of Laryngotracheal Stenosis after Thermal Inhalation Airway Injury

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Abstract

Inhalation injury is independently associated with burn mortality, yet little information is available on the incidence, risk factors, or functional outcomes of thermal injury to the airway. In patients with thermal inhalation injury, we sought to define the incidence of laryngotracheal stenosis (LTS), delineate risk factors associated with LTS development, and assess long-term tracheostomy dependence as a proxy for laryngeal function. Retrospective cohort study of adult patients treated for thermal inhalation injury at a single institution burn critical care unit from 2012 to 2017. Eligible patients' records were assessed for LTS (laryngeal, subglottic, or tracheal stenosis). Patient characteristics, burn injury characteristics, and treatment-specific covariates were assessed. Descriptive statistics, Mann-Whitney U-tests, odds ratio, and chi-square tests compared LTS versus non-LTS groups. Of 129 patients with thermal inhalation injury during the study period, 8 (6.2%) developed LTS. When compared with the non-LTS group, patients with LTS had greater mean TBSA (mean 30.3, Interquartile Range 7-57.5 vs 10.5, Interquartile Range 0-15.12, P =. 01), higher grade of inhalation injury (mean 2.63 vs 1.80, P =. 05), longer duration of intubation (12.63 vs 5.44; P

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Lowery, A. S., Dion, G., Thompson, C., Weavind, L., Shinn, J., McGrane, S., … Gelbard, A. (2019). Incidence of Laryngotracheal Stenosis after Thermal Inhalation Airway Injury. Journal of Burn Care and Research, 40(6), 961–965. https://doi.org/10.1093/jbcr/irz133

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