[The role of cytogenetic studies in prognosis of treatment results in patients with ovarian cancer]. 
The aim of this study was to determine the correlation between chromosome aberrations complexity in carcinomatous cells and survival in 38 patients with ovarian cancer.  The material of cytogenic studies were 38 specimens taken from primary neoplastic ovarian tumors, which were than crumbled enzymatically.  The suspension of neoplastic cells was used to set up primary cell culture in vitro.  Only numerical aberrations or one of structural aberrations were assumed to be simple aberrations.  More than one of numerical aberrations or structural aberrations were thought to form complex aberrations.  The curve of survival in patients were determined using nonparametrical method of Kaplan and Meier and the differences between the curves were compared using logrank test.  1.  The existence of complex chromosome aberrations in ovarian cancer cells is unfavourable prognostic factor.  2.  The cytogenic analysis of neoplastic ovarian tumors together with numerous clinical and histological factors is an important prognostic factor.