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Acoustic analysis of voice in nonlaryngeal head and neck cancer patients post chemoradiotherapy

Bk Yamini, Nikhila Radhakrishna, Amrut Sadashiv Kadam, N Shivashankar, Chendil Vishwanathan, Rajesh Javarappa
Published: 1 January 2017
 by  Medknow

Abstract: Background: Concurrent chemoradiotherapy (CCRT) used for definitive management of locally advanced head and neck squamous cell carcinoma (HNSCC) allows organ preservation at the cost of preservation of function. Vocal cords, being within the field of irradiation, undergo acute and chronic changes which adversely impacts the patients' voice. Aims: To assess the acute changes in the acoustic characteristics of voice post-CCRT in patients with nonlaryngeal HNSCC. Materials and Methods: Thirty patients with HNSCC treated with CCRT, a total dose of 66–70 Gy/33–35 fractions at five fractions/week, with weekly cisplatin. Acoustic analysis (AA) and laryngoscopic examination performed at baseline, 6 weeks, and 3 months post-CCRT. Statistical analysis of the parameters using ANOVA and Student's t-test was performed. Results: Of the thirty patients, 26 patients completed CCRT. At 6 weeks post-CCRT, among 14/26 patients, most (11/14 [78.57%]) developed Grade III toxicity. On AA, both increase and decrease in mean F0 from baseline was observed. An increase (P 0.05). Conclusions: Periodic AA allows quantification of voice changes and mapping of vocal toxicity induced by CCRT.
Keywords: Acoustic analysis / chemoradiation / head and neck cancer

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