Electronic Microlaryngoscopy Polyps Before And After The Operation Of The Vocal Cords Voice Acoustic Evaluation

Objective: the vocal cords are common vocal polyps benign lesions, along with the developmentof medical science and computer voice the application of multimedia technology, found thevocal disease acoustical parameters (such as Jitter, Shimmer, NNE, HNR, SNR, etc) and betweenthe normal voice have obvious difference. This study from various acoustic parameters of that,this paper discusses the vocal cords patients before and after surgery polyp of the vocal cordsform and acoustic parameters and the difference between normal person, for clinical applicationof an objective evaluation test voice vocal polyps after patients improve voice to provide thetheory basis; For use of voice acoustic parameters on the feasibility of vocal polyps diagnosedprovide basis.Methods: the choice of40patients with voice normal adults as control group. In40cases withvocal polyps before and after operation in the electronic microlaryngoscopy vocal onmorphological evaluation, radiography compared, and at the same time by Shanghai tai hundredmillion case company produces the Dr. Speech4.0software do voice acoustic comparisonanalysis.Results:1. The vocal cords polyps preoperative visible side of the vocal cords before, in the third, whiteor pink junction translucent surface smooth lumps, but pedicle; The review was vocal smoothsurface side, the subglottic closed is good.2. Polyps before each vowel vocal group of Jitter, Shimmer and NNE value are higher than thenormal group, HNR and SNR is below normal group, a statistically significant difference; Eachof the vocal polyps vowels Jitter, Shimmer and NNE value is reduced, HNR and SNR value rise,and the value of each parameter, compared with statistically significant difference were; Each ofthe vowels Jitter, Shimmer and NNE is still higher than normal, HNR and SNR value increased,and the normal group is not statistically significant differences.3. The preoperative patients hoarse voice vocal polyps in normal and mildly abnormal primarily,postoperative sound improved significantly, mainly to normal. Preoperative patients vocal polypsrough times to normal and mildly abnormal is given priority to, the severe exception disappear.The breath of patients with vocal polyps sound postoperative serious degree is preoperative areobviously different.Conclusion:1. The voice acoustic analysis can be used as a vocal cords polyps effect assessment after surgery,the determination of the voice recovery a objective reference. 2. Acoustic testing can be used as voice vocal polyps review of postoperative a means.