Abstract
Abstract Background Soft/normal pancreas consistency is a known risk factor for postoperative pancreatic fistula (POPF) in patients who undergo pancreatoduodenectomy (PD) for malignancy. A hard pancreas is considered less technically challenging to work with and generally allows the formation of a more robust pancreatic anastomosis. This study aimed to investigate the impact of pancreas consistency and intra-operative pancreatitis on the incidence of POPF in PD patients. Methods Data was extracted from the Recurrence After Whipple’s (RAW) study, a multicentre retrospective cohort study of outcomes following PD performed for malignancy (29 centres in 8 countries, n=1484). Patients with operation notes which documented a subjective assessment of pancreas tissue consistency and whether there was intra-operative evidence of pancreatitis were included. The incidence of POPF and clinically relevant POPF (CR-POPF) was calculated and comparisons were made using the chi-squared test. The 2016 International Study Group of Pancreatic Fistula definitions were used. Results Of the 40.6% patients included, 41.5% had a soft/normal pancreas and 58.2% had a firm/hard pancreas. Both POPF (OR: 5.2, 95% CI: 3.3-8.3) and CR-POPF (OR: 4.7, 95% CI: 2.5-8.9) were significantly more common in the former (both p<0.0001). A soft/normal pancreas was most common in patients with cholangiocarcinoma and least common in those with pancreatic cancer (56.4% vs 33.4%). 32.6% had their intra-operative pancreatitis status documented. Of these, 22.8% had evidence of pancreatitis and 77.2% did not. POPF (11.8% vs 16.1%, p=0.3) and CR-POPF (8.2% vs 9.4%, p=0.7) rates were similar in these groups. Conclusion In our multicentre study of PD outcomes, POPF and CR-POPF were significantly more common in those with a soft/normal pancreas. This may have implications for postoperative management planning.
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