Abstract:
BACKGROUND:The local control rates of T1 and T2 supraglottic carcinoma treated with radiation alone were reported as 71% to 92% and 59% to 83%, respectively. The factors that affect the local control rate for early supraglottic carcinoma were investigated. METHODS:From 1967 through 1985, 100 cases with early supraglottic carcinoma (T1N0, 51; T2N0, 49) were treated with telecobalt therapy at the Department of Radiology, Osaka University Hospital. RESULTS:The 5-year actuarial survival rates of cases with T1 and T2 were 69% and 74%, respectively. The 5-year local control rates of cases with T1 and T2 were 77% and 62%, respectively. The local control rate for the epilarynx (94%) was significantly better than that for the lower supraglottis (66%; P < 0.05). For the lower supraglottis, the local control rates of 24 tumors that disappeared at 40 Gy and 58 tumors that persisted at 40 Gy were 88% and 55%, respectively (P < 0.05). CONCLUSIONS:The tumor site was an important prognostic factor in radiation therapy for the supraglottis, as was the tumor response at 40 Gy for the lower supraglottis.
journal_name
Cancerjournal_title
Cancerauthors
Inoue T,Matayoshi Y,Inoue T,Ikeda H,Teshima T,Murayama Sdoi
10.1002/1097-0142(19930701)72:1<57::aid-cncr282072subject
Has Abstractpub_date
1993-07-01 00:00:00pages
57-61issue
1eissn
0008-543Xissn
1097-0142journal_volume
72pub_type
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