Conservative treatment of borderline ovarian tumors: the experience of one clinical center.

Abstract Borderline ovarian tumors have favorable survival rates, however, prognostic factors are still discussed. The aim was to investigate the outcome for women treated conservatively with respect to different tumor-dependent and tumor-independent prognostic factors. 194 women treated surgically between years 1978 and 2007. Influence of conservative or radical surgical treatment on survival was evaluated. The overall 5-year survival rate was 93.1% and 96.8% respectively for radical and conservative treatment. The mean time of survival was longer in women treated conservatively (p = 0.03), but this was an outcome of their younger age; when age was eliminated as a determining factor; the type of treatment had not influenced the length of postoperative survival (p=0.57). Conservative treatment was chosen more frequently for younger women. Factors that are detrimental to survival are age, postmenopausal detection of borderline ovarian tumors, an advanced stage of progression, a bilateral localization of tumors, the occurrence of invasive peritoneal implants and a serous rather than a mucinous histological type of borderline ovarian tumor more frequently occurred in women treated radically Borderline ovarian tumors recurred in 16.7% of women after conservative treatment and in 3.5% of women after radical treatment. Of women with preserved fertility 25.7% became pregnant at least once and 21.2% of the group as a whole delivered children at term; none of the pregnancies were fertility-assisted. Conservative treatment does not have a deleterious effect on the prognosis of women provided that unfavorable prognostic factors are identified.