Stroboscopic evaluation and voice acoustic analysis of early glottic carcinoma pre and post-radiotherapy

Abstract Background Early glottic carcinoma primarily affects the vocal folds and most commonly presents with the symptom of dysphonia, which is an effect of the tumor interfering with normal vocal fold vibration. Radiotherapy for early glottic carcinoma is highly effective in controlling the tumor while preserving the larynx and voice. The aim of this study was to evaluate changes over time in voice outcomes among patients with early stage glottic cancers treated with definitive radiotherapy using stroboscopy as well as voice acoustic analysis. Methods The assessment was applied on 24 patients with T1 and T2 glottic carcinoma. It was conducted pre-radiotherapy, 3 months and 6 months post-radiotherapy as follow-ups. The assessment included laryngoscopic, videostroboscopic examination, and voice acoustic analysis. Results Marked improvement was found in videostroboscopic parameters, with parameters highly significant differences across the three phases for nearly all stroboscopic parameters, p -values (