Analysis The Efficacy Of Lee Silverman Voice Treatment On Speech Disorders And Facial Movement Disorders In Patients With Parkinson’s Disease

Objective: At least 90% of people with Parkinson’s disease have speech disorders and 75% have facial movement disorders,which seriously affects their quality of life.This study was conducted by observing patients being treated with LSVT to investigate the effectiveness of LSVT treatment on speech and facial movement disorders in Chinese patients with Parkinson’s disease.Method: In accordance with the inclusion and exclusion criteria,49 patients with Parkinson’s disease who attended the Affiliated Hospital of Hangzhou Normal University from September 2021 to January 2023 were recruited.Due to the grouping situation,patients know if they are getting treatment or not it was not possible to blind the subjects.The subjects were divided into two groups,with 24 in the treatment group and 25 in the control group,participants in the treatment group were treated with LSVT for 4 weeks by a rehabilitator concurrent with the use of Parkinson’s disease medication to stabilize.The control group only use of Parkinson’s disease medication to stabilize.The subjects were assessed for speech function by a clinician before and after treatment using Praat speech analysis software using acoustic analysis and the unified Parkinson’s disease rating scale,voice handicap index,Sunnybrook grading,blink frequency,and UPDRSIII were used to assess subjects’ facial motor function,with the assessor blinded to the treatment and control groups as a way to assess the effectiveness of LSVT in treating speech disorders and facial motor disorders in patients with Parkinson’s disease.Results:(1)In terms of speech,compared to the control group,patients in the rehabilitation treatment group showed an increase in volume of the longest vowel sounds after 4 weeks of LSVT training(p<0.05),an increase in duration(p<0.05),an improvement in VHI function and emotional dimensions(p<0.05),but no improvement in physical dimensions(p>0.05),while the control group showed no significant difference in the above indicators(p>0.05).(2)In terms of facial movements,the treatment group showed significant improvement in random and linked movements in TFGS before and after treatment(p<0.05),no significant difference in static activities(p>0.05),significant improvement in blink frequency(p<0.05)and no significant difference in UPDRSIII(p>0.05),while the control group showed no significant differences in any of the above indicators(p>0.05).(3)There were no serious adverse events in either group during treatment and follow-up.Conclusion: LSVT is effective in treating speech disorders and facial movement disorders in patients with Parkinson’s disease,and can improve patients’ voice loudness and reading,speech duration,and facial movement to a certain extent,and improve patients’ quality of life,with no serious adverse effects found.