Efficacy analysis of ansa cervicalis anterior root-recurrent laryngeal nerve anastomosis in the treatment of unilateral vocal cord paralysis
Objective:Investigates the application and clinical efficacy of ansa cervicalis anterior root-recurrent laryngeal nerve(RLN)anastomosis in the treatment of unilateral vocal fold paralysis(UVFP).Methods:A pro-spective study was conducted with 92 UVFP patients admitted to our department from January 2018 to January 2022 who received ansa cervicalis anterior root-RLN anastomosis.The course of nerve injury ranged from 6 to 24 months.Videostroboscopy,voice subjective auditory perceptual assessment(GRBAS),Voice Handicap Index(VHI-10),voice objective acoustic analysis and laryngeal electromyography(EMG)were used to evaluate the effi-cacy of the operation.Results:Videostroboscopy showed that although the movement of vocal cords did not return to normal 12 months after operation,their volume and muscle tension were significantly improved and their posi-tions were adducted to the median or near-median.Also the glottic closure,vocal cord position,vocal cord edge,symmetry and regularity of vocal cord vibration were significantly.improved than pre-operation(P＜0.01).The five indexes of GRBAS(Grade,Roughness,Breathiness,Asthenia,Strain)and VHI-10,as well as voice acoustic parameters(Jitter,Shimmer,NHR)post-operation were significantly reduced,while the maximum phonation time(MPT)was significantly longer(P＜0.01).The results of laryngeal EMG indicated that the maximum volun-tary motor unit recruitment(VMUR)post-operation was significantly recovered(P＜0.01),which confirmed that the affected laryngeal muscle obtained effective nerve reinnervation.Conclusion:Ansa cervicalis anterior root-RLN anastomosis can effectively improve the voice function of patients which is safe and satisfactory.It is an ideal method for the treatment of unilateral RLN injury.
NETL
NSTL
万方数据
