Utility of Surgery/Radiotherapy in Distant Metastatic Head and Neck Squamous Cell Carcinoma: A Population-Based Approach. (May 2016) - Patel, Tapan D.
Objectives: The aim of this study is to analyze the survival benefits of surgery and/or radiation therapy over no therapy in patients with metastatic (M1) squamous cell carcinoma of the head and neck region (HN-SCC). Study Design: Retrospective administrative database analysis. Subjects and Methods: The Surveillance, Epidemiology, and End Results (SEER) database was queried for M1 HN-SCC cases from 1988 to 2012 (6663 patients). Patient demographics, initial treatment, and survival outcomes were analyzed. Survival was analyzed with the Kaplan-Meier model. Results: Of the 6663 patients identified with M1 HN-SCC in the SEER database, 1669 patients received no therapy; 2459 patients, radiotherapy; 570 patients, surgery; and 1100 patients, surgery with adjuvant radiotherapy. The mean survival was 8.44 months for patients who did not undergo any therapy. In comparison, patients who underwent radiotherapy alone, surgery alone, or surgery with radiotherapy had mean survivals of 18.03 ( P < .0001), 31.07 ( P < .0001), and 39.93 ( P < .0001) months, respectively. The 5-year disease-specific survival rates were 6.35% for no therapy, 17.51% for radiotherapy alone, 30.50% for surgery alone, and 33.75% for surgery with radiotherapy ( P < .0001). Site-specific analysis revealed that surgery and/or radiation provides disease-specific survival benefit as compared with no therapy at all subsites within the head and neck region. Conclusions: Surgery and/or radiation—which has been shown to improve quality of life in patients with advanced cancer—is associated with an increased survival when utilized in patients with distant metastatic disease.