Abnormalities detected in metaphase chromosomes in bladder carcinoma: prognostic value and comparison with histopathological factors.
The objective of this study was to detect the incidence and prognostic value of chromosomal aberrations in metaphase chromosomes (hypodiploidy, hyperdiploidy and/or structural abnormalities) in Ta and T1 transitional cell carcinoma (TCC) of the bladder. Of 266 patients, the metaphase chromosomes of the primary tumour were studied using a direct microscopic analysis and classified into two categories: normal and abnormal. Recurrence and progression were prospectively recorded during a median follow-up period of 40 months and in a retrospective analysis compared with other prognostic factors. Chromosomal abnormalities were found in 48% of Ta tumours and in 92% of T1 tumours. In univariate analysis, chromosomal abnormalities were associated with recurrence-free survival ( P=0.03) and progression-free survival ( P=0.01). In multivariate analysis, chromosomal abnormalities (RR=1.98) and age (RR=0.64) were independent predictors of recurrence-free survival but not progression-free survival.
Department of Urology, Stichting Ziekenhuizen Noord-Limburg, P.O. Box 1926, 5900 BX, Venlo, The Netherlands. j.oosterhuis@tip.nl
J W A
JW
Oosterhuis
A W G B
AW
Smeets
M L G
ML
Janssen-Heijnen
R F M
RF
Schapers
R P E
RP
Pauwels
D W W
DW
Newling
D000368:Aged; D002295:Carcinoma, Transitional Cell / Q000235:genetics* / Q000401:mortality / Q000473:pathology; D002869:Chromosome Aberrations / Q000145:classification; D020732:Cytogenetic Analysis; D018572:Disease-Free Survival; D005260:Female; D006801:Humans; D008297:Male; D008677:Metaphase; D009364:Neoplasm Recurrence, Local; D011379:Prognosis; D015996:Survival Rate; D001749:Urinary Bladder Neoplasms / Q000235:genetics* / Q000401:mortality / Q000473:pathology