Pediatric laryngeal electromyography technique for vocal fold immobility using bipolar double hookwire electrodes

Area of Science:

• Pediatric Otolaryngology
• Neuromuscular Diagnostics
• Laryngeal Physiology

Background:

• Vocal fold immobility (VFI) is a significant cause of pediatric dysphonia and dysphagia.
• Laryngeal electromyography (LEMG) is crucial for diagnosing and managing VFI.
• Existing LEMG techniques may have limitations in pediatric applications.

Observation:

• A novel LEMG technique utilizing bipolar double hookwire electrodes for simultaneous bilateral thyroarytenoid and posterior cricoarytenoid muscle recordings is presented.
• The technique was successfully applied to a 5-year-old female with Neurofibromatosis Type 2 presenting with left VFI, aspiration, and dysphonia.
• Detailed procedural steps for this modified pediatric LEMG approach are provided.

Findings:

• The modified technique allows for comprehensive bilateral laryngeal muscle assessment.
• Simultaneous recordings provide insights into laryngeal muscle function and potential recovery.
• This method offers a potentially valuable tool for evaluating VFI in pediatric patients.

Implications:

• This modified pediatric LEMG technique may improve diagnostic accuracy for VFI.
• It has the potential to aid in predicting the return of laryngeal function.
• This approach could enhance treatment planning and patient outcomes for pediatric VFI.