Analysis of factors influencing voice quality and therapeutic approaches in vocal polyp patients

Abstract

The task of the present study was to investigate the relationship between parameters and factors predictive of voice quality and to suggest treatment guidelines for patients suffering from vocal polyps. In total, 158 patients diagnosed with vocal polyps and who received voice therapy were enrolled. Clinicomorphological factors such as size, location, color, and type of the polyp were evaluated. Perceptive and acoustic voice evaluation was conducted and the relationship of these voice parameters with clinicomorphological factors was analyzed. Additionally, factors favorable for voice therapy were investigated. GRBAS scale grade was closely related to acoustic parameters, such as jitter and shimmer. Univariate analysis showed the size of the polyp, the color of the vocal fold, a history of voice abuse, associated muscle tension dysphonia (MTD), and opposing reactive scar affected voice quality. In multivariate analysis, only the size of the polyp was associated with voice quality. The patients in whom the voice quality improved with voice therapy initially had smaller polyps and whitish-colored vocal folds. Results of the present study indicate that although the most influential factor on voice quality in vocal polyp patients was the size, several other factors should be considered in evaluating and treating vocal polyps. The size of the polyp and the color of the vocal fold are indicative of success or failure in voice therapy.

Effect of voice training in the voice rehabilitation of patients with vocal cord polyps after surgery

“…In the present study, after voice training, the curative effect in the training group was consolidated, and recent and long-term vocal rehabilitation outcomes were superior to those of the control group. These results are consistent with the study by Cho et al (18). …”

Persistent Dysphonia after Laryngomicrosurgery for Benign Vocal Fold Disease

“…Therefore, jitter might better represent the size of a vocal fold lesion than other acoustic parameters. This finding coincided with a study in which that the size of the vocal polyp significantly correlated with the preoperative voice quality and postoperative outcome [18]. However, in this study, we did not investigate the correlation between the size of vocal fold lesion and voice outcome.…”

Treatment Efficacy of Voice Therapy for Vocal Fold Polyps and Factors Predictive of Its Efficacy

“…Vocal polyps of a small size, with hemorrhagic features, and occurring in females show a better response to voice therapy or vocal hygiene education. 4,8,9 It is necessary to find predicting factors related to effective response to voice therapy when deciding treatment modality for vocal fold polyps. Here, this study was designed to analyze the success rate of voice therapy and determining factors for response to voice therapy for vocal fold polyps.…”