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5570 Background: Global malnutrition is widespread among patients with ovarian cancer. The objective of this study was to investigate the influence of the nutritional status on the clinical outcome of patients with primary or recurrent ovarian and peritoneal cancer. Methods: In a two-year-period (January 2007 - December 2008) 152 consecutive patients were analysed. 79 (52%) of them had primary and 73 (48%) recurrent disease. At the time of admission for surgical therapy, the body composition was analysed with Bioelectrical Impedance Analysis (BIA) using phase angle alpha and ratio of extra-cellular mass and body cell mass (ECM/BCM). Serum protein parameters were registered. The risk of malnutrition was estimated by Nutritional Risk Score (NRS). During operation a standardised and validated tumor documentation tool (IMO) was performed. Nutritional parameters were correlated with IMO-parameters. Results: The median age of patients was 56 years (range 48–66) with median BMI 24.4 kg/m2 (range 21.8–27.3). In 23% primary and 14% recurrent cases a high nutritional risk was classified (NRS≥3). These patients had significantly lower serum albumin, pre-albumin and transferrin levels compared to patients with NRS No significant financial relationships to disclose.

e16564 Background: The purpose of this study was to examine an influence of poor nutritional status on surgical outcome in patients with ovarian cancer. Methods: Data from 152 consecutive patients with histologically confirmed ovarian cancer were prospectively analyzed. Overall 79 suffered from primary and 73 from recurrent disease. All patients received a systematic nutritional assessment prior to cytoreductive surgery and postoperative all complications were analyzed in detail. The Nutritional Risk Score (NRS-2002) was used to identify patients at high nutritional risk (NRS≥3). Intraoperatively, a standardized documentation script (IMO) was applied including tumor localization, surgical interventions, and postoperative residual tumor mass. Results: 29 patients (19%) were classified as malnourished, including 19 (24%) with primary and 10 (14%) with recurrent disease. These patients showed a significantly poorer performance status preoperatively compared to patients with NRS No significant financial relationships to disclose.