Voice results in patients with T1a glottic cancer treated by radiotherapy or endoscopic measures

Comparative multidimensional assessment of laryngeal function and quality of life after radiotherapy and laser surgery for early glottic cancer

“…[10][11][12][13][14] Two decades ago, multiple studies concluded that posttherapeutic vocal quality was inferior in the LS group compared with that in the RT group. [10][11][12] However, several recent studies compared the 2 treatment modalities and reported equal or better vocal quality in the LS group, 13,14 mainly because of the refined surgical techniques accompanied by the improvement of surgical laser devices. Nevertheless, these previous reports assessed 1 or 2 aspects of vocal function, whereas the European Laryngological Society (ELS) insisted on the importance of multidimensional assessments of vocal pathology to adequately describe the vocal function.…”

Oncological and Functional Outcome after Surgical Treatment of Early Glottic Carcinoma without Anterior Commissure Involvement

“…Larynx preservation, disease-specific survival, and overall survival were significantly less favorable in patients treated initially with radiotherapy [17–19]. Functional results after radiotherapy were poorer comparing to those treated with endoscopic laser resection; both perturbation measures (jitter and shimmer) and aerodynamic parameters were more satisfactory in patients after laser surgery [20–22]. All these facts promote surgical management as a preferable treatment of early glottic carcinoma.…”

“…Our clinical assessments by stroboscopy closely correlated with vocal analysis results. Studies examining the vocal parameters in patients treated with laser cordectomy noted that fundamental frequency ( F 0) tends to be higher in patients for more extended resections [22, 29–31]. Postoperatively, the voice changes significantly because of the removal of the vibrating tissue of the vocal cord in patients treated with open cordectomy and laser cordectomy, with lower mass leading to higher fundamental frequencies.…”

Functional organ preservation in laryngeal and hypopharyngeal cancer

“…Post-treatment voice quality was evaluated in a number of studies comparing transoral laser microsurgery with primary radiotherapy [57], [58]. Some of those studies found no difference in voice quality whereas others state better results after radiotherapy [59], [60].…”