[Review of cut-off points between stages T1 and T2 in the 1997 TNM classification of renal carcinoma].
OBJECTIVE
We retrospectively review the patients treated at our institution for renal cell carcinoma (RCC). We compare the patients classified in TNM state T1N0M0 in the 1997 revision with the 1992 one in order to determine survival differences. We divide patients in three size related groups and compare its survival rates.


METHODS
We review 168 surgically treated patients. 72 of them were classified into T1N0M0 stage. We compare cancer-free survival in patients included in 1997 and 1992 T1 stage. We divide patients in three groups: 1-3 cm, 3-5 cm, 5-7 cm and compare respective cancer-free survival.


RESULTS
There is a survival difference between T1(1997)-T2(1992) (p = 0.478). There is an inferior survival in size group 5-7 cm compared with 1-3 cm and 3-5 cm ones (p = 0.02/0.0465).


CONCLUSIONS
In our patients, 1997 revision of T1 size supposes a descent of cancer-free survival compared with 1992 one. We consider a better stage limit under 5 cm, instead of actual 7 cm.
López Luque
A J
AJ
Servicio de Urología, Hospital Regional Universitario Reina Sofia, Córdoba.
Anglada Curado
F J
FJ
Carazo Carazo
J L
JL
Alvarez Kindelan
J
J
Márquez López
J
J
Leva Vallejo
M
M
Regueiro López
J C
JC
Prieto Castro
R
R
Requena Tapia
M J
MJ
D000368:Aged; D002292:Carcinoma, Renal Cell / Q000175:diagnosis / Q000401:mortality / Q000473:pathology* / Q000601:surgery; D018572:Disease-Free Survival; D005260:Female; D006417:Hematuria / Q000209:etiology; D006801:Humans; D033162:Incidental Findings; D007680:Kidney Neoplasms / Q000175:diagnosis / Q000401:mortality / Q000473:pathology* / Q000601:surgery; D007902:Length of Stay; D015993:Life Tables; D008297:Male; D008875:Middle Aged; D009367:Neoplasm Staging / Q000379:methods / Q000592:standards*; D009392:Nephrectomy; D010146:Pain / Q000209:etiology; D011183:Postoperative Complications / Q000453:epidemiology; D012189:Retrospective Studies; D013030:Spain / Q000453:epidemiology; D015996:Survival Rate; D016896:Treatment Outcome