Improved airway visualization during direct laryngoscopy using self-retaining laryngeal retractors: a quantitative...

Area of Science:

• Otolaryngology
• Pediatric Surgery
• Medical Device Technology

Background:

• Direct laryngoscopy is crucial for pediatric airway examination.
• Limited visualization can hinder diagnosis and treatment of laryngeal pathologies.
• The Lindholm laryngeal distending forceps are designed to improve exposure during this procedure.

Purpose of the Study:

• To quantify the improvement in laryngeal visualization provided by the Lindholm laryngeal distending forceps.
• To assess the impact of the forceps on glottic opening and vocal cord exposure in pediatric patients.

Main Methods:

• A case series with chart review was conducted at a pediatric hospital.
• Intraoperative endoscopic photos were analyzed before and after using the Lindholm forceps.
• Imaging software quantified changes in glottic opening, vocal cord area, and anterior commissure angle.

Main Results:

• The Lindholm forceps increased glottic opening by a mean of 359% and visualized true vocal cord area by 337%.
• The anterior commissure angle increased significantly, from 24.9° to 71.5° (a mean increase of 46.6°).
• All observed improvements in visualization were statistically significant (P < .01).

Conclusions:

• The Lindholm laryngeal distending forceps substantially enhance visualization of the vocal folds, anterior commissure, and subglottic region.
• Improved exposure facilitates better diagnosis and treatment of laryngeal pathologies during pediatric direct laryngoscopy.
• These findings support the utility of the Lindholm forceps in pediatric airway management.