[Prognosis and organ preservation in oropharyngeal cancer treated with radiotherapy].
The records of 102 patients with squamous cell carcinoma of the oropharynx treated at National Sapporo Hospital with external and/or interstitial radiotherapy between 1978 and 1996 were reviewed to evaluate the treatment results, focusing on primary control and functional preservation. Ninety-five patients had been primarily treated with curative intent initially. Of these 95 patients, 4% were in stage I, 19% in stage II, 42% in stage III and 34% in stage IV. Twenty-one patients (22%) had been treated with multidisciplinary chemotherapy, and 19 patients (20%) had been boosted with brachytherapy mainly using Au-198 grains. The cause-specific survival rates at 5 and 10 years were 63% and 52%, respectively. The local control rates at 5 and 10 years were 70% and 51%, respectively. The most important factors affecting local control were the subsite of the primary tumor and N stage. Based on these findings, it is considered that radiotherapy combined with/without chemotherapy except for N3 and the posterior wall type is an effective method of achieving tumor control and preserving organ function, compared with other methods including surgical procedures.
Myojin
M
M
National Supporo Hospital, Division of Radiotherapy.
Nishio
M
M
Kawashima
K
K
Onimaru
R
R
Tanaka
K
K
Dosaka
Y
Y
Asano
K
K
Somekawa
Y
Y
D000328:Adult; D000368:Aged; D000369:Aged, 80 and over; D001918:Brachytherapy; D002294:Carcinoma, Squamous Cell / Q000473:pathology / Q000532:radiotherapy*; D003131:Combined Modality Therapy; D005260:Female; D006801:Humans; D008297:Male; D008875:Middle Aged; D009367:Neoplasm Staging; D009959:Oropharyngeal Neoplasms / Q000473:pathology / Q000532:radiotherapy*; D011379:Prognosis; D015996:Survival Rate; D016896:Treatment Outcome