Oral surgery, oral medicine, oral pathology and oral radiology · 2020
Surgery combined with 125I brachytherapy for treatment of carcinoma ex pleomorphic adenoma of the parotid gland.
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Ma Yan-Qi, Zheng Lei, Huang Ming-Wei, Liu Shu-Ming, Lv Xiao-Ming, Zhang Jian-Guo
Аннотация
OBJECTIVE: The aim of this study was to investigate the effectiveness and safety of surgery combined with 125I seed brachytherapy for treatment of carcinoma ex pleomorphic adenoma (CXPA) of the parotid gland and to identify the factors associated with prognosis.
STUDY DESIGN: We conducted a retrospective analysis of data of patients with CXPA of the parotid gland treated with surgery plus 125I seed brachytherapy at the Peking University School of Stomatology Hospital between December 2003 and July 2018.
RESULTS: Fifty-five patients (median age, 51 years) were included in the study. Median follow-up was 50.5 months. The 3-, 5-, and 10-year overall survival rates were 91.1%, 91.1%, and 81.5%, respectively. The 3-, 5-, and 10-year local control rates were all 85.2%. Grades 1-3 adverse effects occurred in 22 patients; no grade 4 reactions occurred. T stage, N stage, tumor invasiveness, perineural invasion, and surgical margins significantly affected local control rates. Lymph node metastasis and perineural invasion were independent predictors of poor local control. Lymph node metastasis was an independent predictor of poor survival.
CONCLUSIONS: Surgery plus 125I seed brachytherapy appears to be an effective and safe treatment for CXPA of the parotid gland. T stage, N stage, tumor invasiveness, and perineural invasion are factors influencing prognosis.
STUDY DESIGN: We conducted a retrospective analysis of data of patients with CXPA of the parotid gland treated with surgery plus 125I seed brachytherapy at the Peking University School of Stomatology Hospital between December 2003 and July 2018.
RESULTS: Fifty-five patients (median age, 51 years) were included in the study. Median follow-up was 50.5 months. The 3-, 5-, and 10-year overall survival rates were 91.1%, 91.1%, and 81.5%, respectively. The 3-, 5-, and 10-year local control rates were all 85.2%. Grades 1-3 adverse effects occurred in 22 patients; no grade 4 reactions occurred. T stage, N stage, tumor invasiveness, perineural invasion, and surgical margins significantly affected local control rates. Lymph node metastasis and perineural invasion were independent predictors of poor local control. Lymph node metastasis was an independent predictor of poor survival.
CONCLUSIONS: Surgery plus 125I seed brachytherapy appears to be an effective and safe treatment for CXPA of the parotid gland. T stage, N stage, tumor invasiveness, and perineural invasion are factors influencing prognosis.