title: Prospective validation of a laparoscopic predictive model for optimal cytoreduction in advanced ovarian carcinoma.
abstract: OBJECTIVE
  The purpose of this study was to validate the performance of a laparoscopy-based model to predict optimal cytoreduction in advanced ovarian cancer patients.
  
  
  METHODS
  In a consecutive prospective series of 113 advanced ovarian cancer patients, the presence of omental cake, peritoneal and diaphragmatic extensive carcinosis, mesenteric retraction, bowel and stomach infiltration, spleen and/or liver superficial metastasis were investigated by laparoscopy. By summing the scores relative to all parameters, a laparoscopic assessment for each patient (total predictive index value = PIV) has been calculated. Sensitivity, specificity, positive predictive value (PPV), negative predictive value (NPV), and accuracy have been calculated for each PIV.
  
  
  RESULTS
  The overall accuracy rate of the laparoscopic procedure ranged between 77.3 and 100%. At a PIV >/= 8 the probability of optimally resecting the disease at laparotomy is equal to 0, and the rate of unnecessary exploratory laparotomy is 40.5%.
  
  
  CONCLUSIONS
  The proposed laparoscopic model appears a reliable and flexible tool to predict optimal cytoreduction in advanced ovarian cancer.
authors.affiliation: Division of Gynecologic Oncology, Catholic University of the Sacred Heart, Rome, Italy.
authors.forename: Anna
authors.initials: A
authors.lastname: Fagotti
authors.forename: Gabriella
authors.initials: G
authors.lastname: Ferrandina
authors.forename: Francesco
authors.initials: F
authors.lastname: Fanfani
authors.forename: Giorgia
authors.initials: G
authors.lastname: Garganese
authors.forename: Giuseppe
authors.initials: G
authors.lastname: Vizzielli
authors.forename: Vito
authors.initials: V
authors.lastname: Carone
authors.forename: Maria Giovanna
authors.initials: MG
authors.lastname: Salerno
authors.forename: Giovanni
authors.initials: G
authors.lastname: Scambia
mesh_terms: D000328:Adult; D000368:Aged; D000369:Aged, 80 and over; D005260:Female; D006801:Humans; D007150:Immunohistochemistry; D010535:Laparoscopy / Q000379:methods*; D007813:Laparotomy / Q000379:methods; D008875:Middle Aged; D009361:Neoplasm Invasiveness / Q000473:pathology*; D009364:Neoplasm Recurrence, Local / Q000473:pathology*; D009367:Neoplasm Staging; D018365:Neoplasm, Residual / Q000473:pathology*; D010051:Ovarian Neoplasms / Q000401:mortality / Q000473:pathology* / Q000601:surgery*; D011237:Predictive Value of Tests; D011336:Probability; D011379:Prognosis; D011446:Prospective Studies; D012372:ROC Curve; D012680:Sensitivity and Specificity; D016019:Survival Analysis; D016896:Treatment Outcome