期刊
AMERICAN JOURNAL OF CLINICAL ONCOLOGY-CANCER CLINICAL TRIALS
卷 36, 期 6, 页码 580-583出版社
LIPPINCOTT WILLIAMS & WILKINS
DOI: 10.1097/COC.0b013e318256f5fd
关键词
radiation therapy; early (T1, T2 true vocal cord) glottic cancer; squamous cell carcinoma of the larynx
类别
Purpose:To evaluate the impact of radiation therapy (RT) on the long-term outcomes and pattern of failure for T1-2 glottic cancer.Materials and Methods:This is a single-institution, retrospective study. From January (1997 to 2010), 253 patients with early glottic cancer underwent RT by 2-dimensional or 3-dimensional RT with Co-60 or linear accelerator. Appropriate daily bolus was applied with linear accelerator-based RT to avoid under dosage of the anterior commissure.Results:A total of 253 patients with T1-T2 glottic cancer were treated with definitive RT. The median age was 65 and males made up 87% of the population. T1 was 77% of the population. The median dose and fraction size were 63 and 2.25 Gy, respectively. After a median follow-up of 83 months, the locoregional control (LRC) for the whole cohort was 98%. Specifically, LRCs for T1 (195 patients) and T2 (58 patients) were 99.5% and 91%, respectively. Kaplan-Meier curve shows the 5-year cause-specific survival to be 100%.Conclusions:Single-modality RT provides an excellent and effective treatment for T1-T2 glottic cancer with remarkable functional preservation and 5-year LRC of 98% with negligible long-term toxicity.
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