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Background The prevalence of malnutrition amongst pancreatic cancer patients is widely reported. This is due to reduced nutritional intake, increased energy expenditure and increased nutrient losses secondary to malabsorption. A Whipple's procedure or pancreaticoduodenectomy is the only potentially curable intervention for pancreatic cancer patients. Malnutrition is associated with increased peri and post-operative complications including delayed wound healing, longer hospital admission and higher mortality rate. Dietetic prehabilitation is a proactive intervention to assess patients’ nutritional status in preparation for elective surgery and, through early dietetic intervention, has the potential to improve perioperative outcomes. This pilot study reviewed the severity of nutritional risk in both the pre and post-operative stages to understand the need for dietetic prehabilitation in this patient group. Methods All patients referred were nutritionally assessed as part of a dietetic cancer prehabilitation pathway, which includes pre-surgical nutritional assessment within one week of referral and early post discharge nutritional assessment. Nutritional assessment was carried out using the PG-SGA short form and patients were triaged as requiring either a universal, targeted or specialist dietetic intervention dependent on severity of nutritional risk. Patients who scored &amp;lt;4 were triaged as universal, and were low nutritional risk. Patients who scored 5-9 were triaged as targeted and were medium nutritional risk, and patients who scored &amp;gt;9 were triaged as specialist, and were high nutritional risk. Results 35 patients were referred for dietetic prehabilitation assessment. 71% of patients were triaged as requiring either a targeted or specialist prehabilitiation intervention. BMI ranged from 15.7kg/m² to 35.9kg/m² and median weight loss was 10.0%. 23 patients received early post surgical nutritional assessment, within 12 days of discharge from hospital. All 23 patients required targeted or specialist dietetic intervention. 22 patients reported post-operative weight loss, with a median weight loss of 7.5%. There was no correlation between pre-surgical and post-surgical nutritional risk. Conclusions Patients undergoing pancreaticoduodenectomy are at high nutritional risk in both the pre and post-operative periods. Patients without evidence of malnutrition in the pre-operative stage remain at high risk of malnutrition and the associated complications in the post operative stage. A prehabilitation programme can identify patients at nutritional risk and institute interventions to optimise perioperative nutritional status.  Findings from this review will form the basis of a study examining the effects of a prehabilitation programme on outcomes following pancreaticoduodenectomy.

british journal of surgery

P-P51 Assessing the severity of pre and post-operative malnutrition in cancer patients undergoing pancreaticoduodenectomy: A review of a virtual dietetic prehabilitation service