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 ORIGINAL ARTICLE
Year : 2017  |  Volume : 54  |  Issue : 3  |  Page : 550-555

Role of laparoscopy in predicting surgical outcomes in patients undergoing interval cytoreduction surgery for advanced ovarian carcinoma: A prospective validation study


1 Division of Surgical Oncology, Regional Cancer Centre, Trivandrum, Kerala, India
2 Division of Cancer Epidemiology and Biostatistics, Regional Cancer Centre, Trivandrum, Kerala, India

Correspondence Address:
Dr. Rema Prabhakaran Nair
Division of Surgical Oncology, Regional Cancer Centre, Trivandrum, Kerala
India
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Source of Support: None, Conflict of Interest: None


DOI: 10.4103/ijc.IJC_306_17

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OBJECTIVE: The objective of this study was to evaluate the safety and efficacy of laparoscopy in detecting inoperable disease in patients undergoing interval cytoreduction (ICR) for advanced ovarian carcinoma (AOC). The primary outcome measured was the performance of laparoscopy-based predictive index value (PIV) score developed by Fagotti et al. The secondary outcomes measured were performance of individual parameters included in PIV score and optimal cytoreduction (OCR) rates in our population. PATIENTS AND METHODS: This is a single-arm, prospective validation trial. Patients undergoing ICR for AOC in our institution were evaluated prospectively with laparoscopy before planned attempt at debulking surgery. Seven laparoscopic parameters included in laparoscopic PIV score were evaluated. Laparoscopic findings were compared with the final outcomes of definitive surgery. OCR was defined as residual disease <1 cm. The efficiency of the individual laparoscopy score was analyzed using receiver operating characteristic (ROC) curves. RESULTS: A total of 73 patients planned for ICR for AEOC were included in the study. Laparoscopic PIV score could successfully predict inoperability in 12 (16.4% of total study population) out of 14 inoperable patients in the total population and thus could avoid 85% of unsuccessful surgeries at a PIV score cutoff of ≥8. Performance of individual parameters included in PIV score was also evaluated. Two parameters out of seven, that is, mesenteric retraction and stomach infiltration had poor performance on ROC curve. Modified PIV score was calculated for each patient after excluding these two parameters. Modified PIV score had similar performance as Fagotti's PIV score at cutoff ≥6 (P = 0.728, for difference in area under the curve). No staging laparoscopy-related serious adverse events were noted in any of the patients. CONCLUSIONS: Laparoscopy is a safe, effective, and accurate method for predicting inoperability in patients undergoing ICR for AEOC.






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