Patient Safety, Complications, and Mishaps in Anesthesia

Laryngeal Injury From Prolonged Intubation: A Prospective Analysis of Contributing Factors

House JC, Noordzij JP, Murgia B, et al (Boston Univ Med Ctr, MA) Laryngoscope 121:596-600, 2011^§

Abstract

Objectives/Hypothesis

The factors leading to laryngeal injury due to intubation are not fully understood. This study sought to determine if duration of intubation, size of endotracheal tube, and/or type of endotracheal tube impact the degree of vocal fold immobility and other laryngeal injury upon extubation.

Study Design

Prospective study.

Methods

Sixty-one adult patients intubated for more than 48 hours were examined by recorded flexible nasolaryngoscopy shortly after extubation.

Results

Forty-one percent of patients had some degree of vocal fold immobility. However, neither the duration of intubation (range, 2–28 days; mean, 9.1 days), the size of endotracheal tube (range, 6 to 8), nor the type of endotracheal tube significantly affected the degree of laryngeal injury including vocal fold immobility. Additionally, none of the collected demographic information (age, gender, height, weight) significantly affected the degree of laryngeal injury.

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