title: Low-dose preoperative radiation therapy in carcinoma of the supraglottic larynx.
abstract: Seventy patients treated for all stages of carcinoma of the supraglottic larynx were analyzed retrospectively. A preoperative dose of 3,000--3,600 rads was given in 15 to 18 treatments over three to four weeks and surgery carried out four weeks later. The 5-year disease-free survival rates were approximately 75% in patients with early disease and 50% in those with more advanced disease. Survival with early disease was similar to that achieved by radical radiotherapy alone, while survival with advanced disease was similar to that achieved by surgery alone. These results suggest that low-dose preoperative irradiation is of limited value.
mesh_terms: D000368:Aged; D003037:Cobalt Radioisotopes; D005260:Female; D005500:Follow-Up Studies; D006801:Humans; D007822:Laryngeal Neoplasms / Q000401:mortality / Q000532:radiotherapy* / Q000601:surgery; D008207:Lymphatic Metastasis; D008297:Male; D008722:Methods; D008875:Middle Aged; D037981:Neck Dissection; D009364:Neoplasm Recurrence, Local; D009367:Neoplasm Staging; D011867:Radioisotope Teletherapy; D011879:Radiotherapy Dosage; D012189:Retrospective Studies
chemical_list: D003037:Cobalt Radioisotopes