BACKGROUND: The authors analyzed the outcomes of patients treated with radiotherapy (RT) alone or combined with surgery for carcinoma of the salivary glands. METHODS: Between October 1964 and June 2003, 224 previously untreated patients were treated with curative intent with RT alone (n = 64) or combined with surgery (n = 160) at the University of Florida College of Medicine (Gainesville, FL). The median follow-up period was 5.0 years (range, 0.4-31.6 years). RESULTS: The 10-year local control rate was 75%. Multivariate analysis of local control revealed that T classification (P < 0.0001) and treatment group (P < 0.0001) impacted this end point. Patients treated with surgery and adjuvant RT had improved local control compared with patients treated with RT alone. The 10-year locoregional control rate was 68%. Multivariate analysis of locoregional control revealed that overall stage (P < 0.0001) and treatment group (P = 0.0002) significantly influenced this end point. The 10-year distant metastasis-free survival rate was 68%. Multivariate analysis of distant metastasis-free survival revealed that overall stage (P < 0.0001) significantly influenced this end point. The 10-year cause-specific and overall survival rates were 57% and 44%, respectively. Multivariate analysis of cause-specific survival revealed that overall stage (P < 0.0001) significantly impacted this end point. Twenty-three patients (10%) experienced severe complications. CONCLUSIONS: A substantial proportion of patients with salivary gland carcinoma were cured with surgery combined with adjuvant RT. RT alone was used for patients with unresectable tumors and cured approximately 20% of those with advanced-stage disease. The probability of cure was influenced by the extent of disease and treatment group. Copyright 2005 American Cancer Society.
BACKGROUND: The authors analyzed the outcomes of patients treated with radiotherapy (RT) alone or combined with surgery for carcinoma of the salivary glands. METHODS: Between October 1964 and June 2003, 224 previously untreated patients were treated with curative intent with RT alone (n = 64) or combined with surgery (n = 160) at the University of Florida College of Medicine (Gainesville, FL). The median follow-up period was 5.0 years (range, 0.4-31.6 years). RESULTS: The 10-year local control rate was 75%. Multivariate analysis of local control revealed that T classification (P < 0.0001) and treatment group (P < 0.0001) impacted this end point. Patients treated with surgery and adjuvant RT had improved local control compared with patients treated with RT alone. The 10-year locoregional control rate was 68%. Multivariate analysis of locoregional control revealed that overall stage (P < 0.0001) and treatment group (P = 0.0002) significantly influenced this end point. The 10-year distant metastasis-free survival rate was 68%. Multivariate analysis of distant metastasis-free survival revealed that overall stage (P < 0.0001) significantly influenced this end point. The 10-year cause-specific and overall survival rates were 57% and 44%, respectively. Multivariate analysis of cause-specific survival revealed that overall stage (P < 0.0001) significantly impacted this end point. Twenty-three patients (10%) experienced severe complications. CONCLUSIONS: A substantial proportion of patients with salivary gland carcinoma were cured with surgery combined with adjuvant RT. RT alone was used for patients with unresectable tumors and cured approximately 20% of those with advanced-stage disease. The probability of cure was influenced by the extent of disease and treatment group. Copyright 2005 American Cancer Society.
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