Voice quality following laryngeal reinnervation by ansa hypoglossi transfer.

摘要: Recurrent laryngeal nerve injury resulting in chronic unilateral vocal fold paralysis has been treated traditionally by implantation of various materials into the paralyzed fold. Although usage these techniques, especially Teflon-glycerin paste injection, clinically established, they do not restore full functionality to larynx (abduction, adduction, and vibratory synchronization folds). Restoration functions, necessary for improved phonation, achieved at least on an experimental basis reinnervation techniques previously described. This study demonstrates excellent human voice quality following folds two cases using ansa hypoglossi-recurrent anastomosis. reinnervated neither abducted nor adducted, it presented itself midline precise apposition with nonparalyzed cord. Voice data were analyzed within a single subject design intervals; preoperatively, immediately postoperatively, midterm, long-term (3 6 years). The was subjective objective means, including acoustics electroglottography. Patient selection, surgical results, implications are reviewed.