title: Conservative treatment of borderline ovarian tumors: the experience of one clinical center.
abstract: OBJECTIVE
  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.
  
  
  METHODS
  194 women treated surgically between years 1978 and 2007. Influence of conservative or radical surgical treatment on survival was evaluated.
  
  
  RESULTS
  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.
  
  
  CONCLUSIONS
  Conservative treatment does not have a deleterious effect on the prognosis of women provided that unfavorable prognostic factors are identified.
authors.forename: Hanna
authors.initials: H
authors.lastname: Olszewska
authors.forename: Anna
authors.initials: A
authors.lastname: Abacjew-Chmylko
authors.forename: Sambor
authors.initials: S
authors.lastname: Sawicki
authors.forename: Jaroslaw
authors.initials: J
authors.lastname: Olszewski
authors.forename: Dariusz Grzegorz
authors.initials: DG
authors.lastname: Wydra
mesh_terms: D000328:Adult; D000077216:Carcinoma, Ovarian Epithelial; D005260:Female; D059247:Fertility Preservation / Q000379:methods* / Q000706:statistics & numerical data; D006801:Humans; D008875:Middle Aged; D009367:Neoplasm Staging; D009375:Neoplasms, Glandular and Epithelial / Q000453:epidemiology / Q000473:pathology* / Q000601:surgery*; D010051:Ovarian Neoplasms / Q000453:epidemiology / Q000473:pathology* / Q000601:surgery*; D011044:Poland / Q000453:epidemiology; D017698:Postmenopause; D011379:Prognosis; D012008:Recurrence; D012189:Retrospective Studies; D016019:Survival Analysis; D016387:Women's Health / Q000706:statistics & numerical data*