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. 2022 Mar;92(3):414-418.
doi: 10.1111/ans.17296. Epub 2021 Oct 22.

Drain fluid amylase and lipase as a predictive factor of postoperative pancreatic fistula

Sharnice Koek  1   2 , Sophie Wiegele  1 , Mohammed Ballal  1   2
Affiliations

Drain fluid amylase and lipase as a predictive factor of postoperative pancreatic fistula

Sharnice Koek et al. ANZ J Surg. 2022 Mar.

Abstract

Background: Early detection of a postoperative pancreatic fistula (POPF) may improve outcomes after pancreaticoduodenectomy (PD). The aim was to assess the role of postoperative drain fluid amylase (DFA) and lipase (DFL) measurements as a predictive indicator in the development of POPF.

Methods: This retrospective cohort study included all PD procedures performed between 2009 and 2017 at Fremantle and Fiona Stanley Hospital in Western Australia. The DFA and DFL measurements on postoperative day (POD) three and five were correlated with the development of POPF.

Results: A total of 169 patients were included in this study with a mean age of 64 ± 11.3 years. Of these, 17 (10.1%) developed a clinically significant POPF. In patients who had both a DFA and DFL measured on both POD 3 and 5, DFA and DFL was significantly higher in patients who developed POPF than those who did not (P < 0.001). In a receiver operating characteristic curve analysis, the most accurate test was POD 3 DFL measurement with an AUC 0.85 (CI 0.75-0.95, P < 0.001). A negative predictive value of 97.4% was observed. DFA and DFL were concordant in 89.2% of cases on POD 3 and 90.6% of cases on POD 5.

Conclusion: In this study, DFL measured on POD 3 as a single measurement appears to carry the most benefit in prediction of clinically significant POPF. Reduction to a measurement on this day may lead to a reduction in cost, earlier drain removal and earlier identification of high-risk patients.

Keywords: amylase; lipase; pancreatic fistula; pancreaticoduodenectomy; whipple.

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