Chemoradiotherapy using retrograde superselective intra-arterial infusion for tongue cancer: Analysis of therapeutic results in 118 cases
2018
Abstract Objectives To evaluate the therapeutic results and rate of organ preservation in patients with squamous cell carcinoma of the tongue treated with retrograde superselective intra-arterial chemoradiotherapy. Materials and methods Between June 2006 and June 2015, 118 patients with tongue cancer were treated with intra-arterial chemoradiotherapy. Treatment consisted of radiotherapy (total 50–70 Gy) and daily concurrent intra-arterial chemotherapy (docetaxel, total 50–70 mg/m 2 ; cisplatin, total 125–175 mg/m 2 ) for 5–7 weeks. Locoregional control and overall survival rates were calculated by the Kaplan-Meier method. Cox’s proportional hazards model was used for both univariate and multivariate analyses. Results The median follow-up for all patients was 38.5 months (range, 3–129 months). After intra-arterial chemoradiotherapy, primary site complete response was achieved in 113 (95.8%) of 118 cases. Three-year locoregional control and overall survival rates were 80.3% and 81.5%, respectively. Grade 3 or 4 toxicities included neutropenia in 16.1% and mucositis in 87.3%. Grade 3 toxicities included anemia in 12.7%, thrombocytopenia in 3.4%, nausea/vomiting in 3.4%, dermatitis in 45.7%, dysphagia in 74.6%, and fever in 2.5% of patients. Late toxicity consisting of grade 3 osteoradionecrosis of the jaw occurred in 4.2% of patients. On univariate analysis, T stage and overall stage were significantly associated with locoregional control, and N stage and overall stage were significantly associated with overall survival. On multivariate analysis, the only significant predictor of overall survival was overall stage classification. Conclusion Retrograde superselective intra-arterial chemoradiotherapy for tongue cancer provided good overall survival and locoregional control.
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