Longitudinal Voice Outcomes Following Laryngeal Reinnervation Via Vagus-to-Recurrent Laryngeal Nerve Anastomosis After Vagal Nerve Sacrifice

Abstract

Objective: This study aimed to describe longitudinal voice outcomes of vagus-to-recurrent laryngeal nerve anastomosis following operative vagal nerve sacrifice. Methods: Two patients who underwent anastomosis were assessed by a multidisciplinary voice team at 1, 4, 9, 12, and 18 months after vagal sacrifice. Results: Long-term changes in voice function based on auditory perceptual measures of voice quality and visual perceptual changes in glottal closure were observed and maintained for 18 months after vagus-to-recurrent laryngeal nerve anastomosis in 2 patients with proximal vagal nerve sacrifice. Patients achieved acceptable voice outcomes and elected not to undergo further treatment, which was supported by Voice Handicap Index scores. Conclusion: Gradual restoration of voice following operative vagal sacrifice can be achieved over an 18-month period using vagus-to-recurrent laryngeal nerve anastomosis and warrants further investigation in appropriately selected patients.