Effectiveness of Chemoradiotherapy for T1b-T2 Glottic Carcinoma

Local control rates for T1b-T2 glottic carcinoma are not satisfactory. The purpose of this study was to evaluate the outcomes of patients with T1-T2 glottic carcinoma treated with radiotherapy and to evaluate the effects of chemoradiotherapy for T1b and T2 disease. At Hiroshima City Asa Citizens Hospital, 49 patients with early glottic carcinoma underwent radiotherapy from July 2006 to December 2015. Of these, 46 patients were enrolled and evaluated. The median age was 70.5 years (range, 39-88 years), and 43 patients (93.5%) were men and 3 patients (6.5%) were women. All patients presented with squamous cell carcinoma. Twenty-eight (60.1%) had T1a, 6 (13%) had T1b and 12 (26.1%) had T2 disease. In T1 and T2 patients, 2 Gy/fraction was used and the total prescribed dose ranged from 60 to 66 Gy and from 60 to 70 Gy, respectively. The patients with T1b and T2 were administered chemotherapy. The patients with T1 disease had a 5-year local control rate of 90.9%, while patients with T2 disease had a local control rate of 80.0%. The patients with T1a disease had a 5-year local control rate of 88.9%, while patients with T1b disease had a local control rate of 100%. Chemoradiotherapy for patients with T1b-T2 glottic carcinoma is feasible and may contribute to improved local control of patients with T1b disease.


Kubo K and Kiriu H

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