[The prognostic significance of esophageal carcinoma based on various irradiation methods].
From 1975 to 1987, 170 unresectable esophageal carcinomas were curatively irradiated. Ninety-eight cases were treated with conventional fractionation and a small field, 32 cases to a large T-shaped field, and 40 cases with conventional 50-60 Gy doses followed by 14-28 Gy of low-dose rate telecobalt therapy (LDRT: 1 Gy/hr, 4-7 Gy/day). The one-year, three-year and five-year survival rates in all cases were, 33%, 9% and 5%, and in LDRT groups, 37%, 15% and 8%, respectively. The survival rate and the local cure rate in the LDRT group were a little better than the others. The prognosis of T-shape group was proven to be the same as conventional group.
Yamada
S
S
Dept. of Radiology, Tohoku Univ. School of Med.
Takai
Y
Y
Ogawa
Y
Y
Abe
H
H
Satou
A
A
Sugita
R
R
Yamazaki
T
T
Sakamoto
K
K
D000328:Adult; D000368:Aged; D000369:Aged, 80 and over; D003037:Cobalt Radioisotopes / Q000627:therapeutic use*; D004938:Esophageal Neoplasms / Q000401:mortality / Q000532:radiotherapy*; D005260:Female; D006801:Humans; D008297:Male; D008875:Middle Aged; D011379:Prognosis; D011867:Radioisotope Teletherapy / Q000379:methods*; D011879:Radiotherapy Dosage
D003037:Cobalt Radioisotopes