80 Poster presentations muscle area (AMA). According to HG and body mass index (BMI), 80.2% and 6.3% of the patients were considered malnourished, respectively. Low serum albumin (SA) was found in 67.8% of the patients. Additionally, low lymphocyte count (LC) was found in 66.4% of the patients. Percent of malnutrition as determined by SGA was similar to that as indicated by HG, LC and SA levels (p = NS). When compared with SGA, HG was more sensible (0.83) followed by SA (0.78), LC (0.67), AC (0.53), AMA (0.48), TSF (0.28), SSF (0.27) and BMI (0.08). The specificity was worse with LC (0.23) and HG (0.26). Positive prediction value was above 70.5% for all the methods. However the Kappa was below 0.3 for all. Conclusion: There is a wide discrepancy in the rates of malnutrition based on different nutritional assessment tools. Therefore nutritional assessment of advanced liver disease patients should be performed using more than one assessment method. Disclosure of Interest: None declared P121 MALNUTRITION IN BRAZILIAN END-STAGE LIVER DISEASE PATIENTS M.T.D. Correia 1 , L.G. Ferreira 2 , L.R. Anastacio 2 . 1 Surgery, Medical School, Federal University of Minas Gerais, 2 Food Science, Pharmacy School, Federal University of Minas Gerais, Belo Horizonte, Brazil Rationale: Malnutrition is highly prevalent amongst liver transplant waiting list patients which dramatically impacts on their surgical outcome. To assess the nu- tritional status of patients on the waiting list for liver transplantation at our institution and correlate it with liver disease were our objectives. Methods: Between 2006 and 2007, patients were nutri- tionally assessed by using Subjective Global Assessment (SGA), triceps skinfold (TSF), midarm muscle area (AMA) and handgrip dynamometry (HG). Qui-square test and multiple linear regression were performed. Results: One hundred and fifty eight patients were assessed, mean age of 50.5+10.6 years old; 71.1% of men. Overall malnutrition according to SGA was 74.7% with 28% considered severely malnourished. No association was seen between malnutrition and age, sex, marital status, income, schooling, race and etiology of cirrhosis. malnutrition was associated with severity of cirrhosis accorging to Child-Pugh, but not with MELD. Presence of ascites and/or edema, episodes of encephalopathy, use of three or more medications, lower levels of physical activity and energy and protein intake below the requirements was correlated with malnutrition (p < 0.01). Multiple linear regression showed that Child-Pugh score, ascites and/or edema, use of three or more medications, PCT, HG and AMA below 5th percentile were associated with malnutrition. Conclusion: Malnutrition is prevalent amongst patients waiting for liver transplant and it is influenced by several factors directly associated with the disease per se. Disclosure of Interest: None declared Liver and gastrointestinal tract 3 P122 DO OMEGA-3 FATTY ACIDS HAVE ANY IMPACT ON SERUM LACTATE LEVELS AFTER MAJOR GASTRIC CANCER SURGERY? O. Makay 1 , T. Kaya 1 , O. Firat 1 , M. Uyar 2 , S. Ersin 1 . 1 General Surgery, 2 Anesthesia, Ege University, Izmir, Turkey Rationale: This study was undertaken to address the effect of postoperative administration of parenteral omega-3 fatty acids on cellular hypoperfusion associated with major gastric surgery. Methods: This was a prospective, randomized, double blinded clinical trial, carried out in a intensive care unit of a university hospital. Twenty-six patients undergoing elective major gastric cancer surgery participated in the trial. Patients were randomly assigned to receive total parenteral nutrition (TPN) supplemented with either omega-6 fatty acid (Lipovenoes 10%, 1.0 g/kg per day) for five days or with a combination of omega-6 and omega-3 fatty acids (Omegaven, 0.2 g/kg per day plus Lipovenoes 10%, 0.8g/kg per day), respectively. Blood samples were taken preoperatively, postoperative day 1 and after TPN (day 6). Results: Although post-surgical lactate levels were signifi- cantly higher in both groups, patients fed with omega-3 + omega-6 fatty acids did not show lower serum lactate levels and lower rates of complications when compared to patients fed with omega-6 only (p > 0.05). Conclusion: TPN with omega-3 fatty acid supplemen- tation does not have a significant impact on cellular hypoperfusion and lactate clearance after major gastric surgery. References Pscheidl EM, Wan JM, Blackburn GL, Bistrian BR, Istfan NW. Influence of omega-3 fatty acids on splanchnic blood flow and lactate metabolism in an endotoxemic rat model. Metabolism. 1992 Jul;41(7):698 705. Husain FA, Martin MJ, Mullenix PS, Steele SR, Elliott DC. Serum lactate and base deficit as predictors of mortality and morbidity. Am J Surg. 2003 May;185(5):485 91. Disclosure of Interest: None declared P123 A PROSPECTIVE, RANDOMIZED TRIAL OF EARLY ENTERAL FEEDING AFTER PANCREATICODUODENECTOMY: PRELIMINARY REPORT J. Park 1 , H. Hwang 1 , J. Kim 1 , H. Chung 2 , S. Lee 2 , D. Yoon 1 , H. Chi 1 . 1 Surgery, 2 Nutrition Services, Yonsei University College of Medicine, Seoul, South Korea Rationale: With recent advances in pancreatic surgery, pancreaticoduodenectomy (PD) has become the stan- dard operation for benign and malignant disease of periampullary lesions. Despite a marked reduction in mortality rate, the incidence of postoperative morbidity is still high and can approach 50%. Postoperative nutrition support was shown to reduce the incidence of morbidity and to shorten the hospitalization. Recently, early