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[Short-term changes in the larynx and voice after intubation]
1Abt. für Phoniatrie und Pädaudiologie, Universität Erlangen-Nürnberg.
Laryngo- Rhino- Otologie
|February 1, 1993
Summary
Laryngeal intubation can cause vocal cord injury, affecting voice quality and vocal fold movement. While average voice ranges remained stable, individual cases showed significant deterioration post-procedure.
Area of Science:
- Otolaryngology
- Anesthesiology
- Speech-Language Pathology
Context:
- Investigates the impact of endotracheal intubation on laryngeal structures and voice function.
- Examines post-intubation changes in 75 patients using endoscopic and stroboscopic methods.
Purpose:
- To assess the immediate post-operative effects of intubation anesthesia on the larynx and voice.
- To evaluate changes in vocal cord mucosal integrity, vibratory patterns, and voice parameters.
Summary:
- Post-intubation, 73% of patients exhibited laryngeal mucosal alterations, including vascular changes and bruising.
- Stroboscopic examination revealed deteriorated vocal cord movement symmetry and amplitude dynamics.
- Voice purity and range showed variable changes, with no significant correlation to patient demographics or intubation specifics.
Impact:
- Highlights the prevalence of transient laryngeal trauma following intubation.
- Underscores the need for careful intubation techniques to minimize vocal fold injury.
- Provides data on the immediate functional consequences of intubation on voice production.