Radiation therapy as exclusive treatment for medically inoperable patients with stage I and II endometrioid carcinoma with endometrium.
From 1975 to 1992, 54 patients with clinical Stage I and II endometrioid carcinoma of the endometrium, representing 3.5% of all such patients, were deemed medically inoperable and exclusively received radiation therapy. A cohort of 108 operable patients adjusted for age, clinical stage, and grade served as a control group. The 5-year actuarial cancer-specific survivals for patients with Stage I inoperable, Stage 11 inoperable, Stage I operable, and Stage II operable disease were 80, 85, 98, and 100%. The corresponding 5-year overall survival rates were 30, 24, 88, and 85%. Inoperable patients had a median disease-free interval of 36 months for clinical Stage I and 50 months for Stage II disease versus 74.5 and 77 months for the operable patients (P = 0.001). Inoperable patients with Stage I disease had a median survival of 37 months versus 50 months for Stage II (P = NS), with only 7 (13%) of these patients dying with endometrial cancer. Operable patients had a median survival of 75 and 79 months in Stage I and II, respectively, with 14 patients dying with endometrial carcinoma (13%). Stage I and II inoperable patients had significantly shorter survival than operable patients (P < 0.0001). More deaths from intercurrent disease occurred within the inoperable Stage I group than with the operable group (28 of 32 vs 3 of 15, P < 0.0001). Inoperable patients had a significantly shorter overall survival and more deaths due to intercurrent disease than operable patients (P < 0.0001). However, inoperable patients who did not die from intercurrent disease had a median 5-year survival which approaches that of operable patients. Our study demonstrates that exclusive radiation therapy is a well-tolerated and effective treatment for medically inoperable patients.
Fishman
D A
DA
Department of Obstetrics and Gynecology, Division of Gynecologic Oncology, Yale University School of Medicine, New Haven, Connecticut 06520-8063, USA.
Roberts
K B
KB
Chambers
J T
JT
Kohorn
E I
EI
Schwartz
P E
PE
Chambers
S K
SK
D000328:Adult; D000368:Aged; D000369:Aged, 80 and over; D018269:Carcinoma, Endometrioid / Q000473:pathology / Q000532:radiotherapy*; D016889:Endometrial Neoplasms / Q000473:pathology / Q000532:radiotherapy*; D005260:Female; D006801:Humans; D008875:Middle Aged; D009367:Neoplasm Staging; D011878:Radiotherapy / Q000009:adverse effects; D012189:Retrospective Studies; D016019:Survival Analysis