Teflon paste injection into the paralytic vocal fold. A simple procedure to improve disturbed cough function

Area of Science:

• Otolaryngology
• Speech and Language Pathology
• Pulmonology

Background:

• Unilateral laryngeal paralysis can lead to significant difficulties with expectoration and aspiration.
• Existing treatments aim to restore laryngeal valve and voice functions.
• Teflon paste injection is a minimally invasive option for vocal fold augmentation.

Purpose of the Study:

• To evaluate the effectiveness of teflon paste injection in patients with unilateral laryngeal paralysis.
• To assess the impact of the injection on laryngeal valve and voice functions.
• To determine any effects on respiratory function post-treatment.

Main Methods:

• Study included three patients diagnosed with unilateral laryngeal paralysis.
• Pre- and post-injection assessments included aerodynamic registrations (air pressure, airflow) during cough and phonation.
• Respiratory function was evaluated using spirometry before and after the procedure.

Main Results:

• Aerodynamic data and patient reports indicated significant improvement in laryngeal valve function after teflon paste injection.
• Voice function also showed positive changes.
• Postoperative spirometry revealed no deterioration in respiratory function.

Conclusions:

• Teflon paste injection is a safe and effective method for managing unilateral laryngeal paralysis.
• The procedure successfully improves laryngeal valve function and voice quality.
• It does not compromise overall respiratory health.