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    Drain fluid amylase is commonly used as a predictor of pancreatic fistula after pancreaticoduodenectomy (PD). This study aimed to determine the ideal cut-off value of drain fluid amylase on postoperative day 1 (DFA1) for predicting pancreatic fistula after pancreaticogastrostomy (PG). Prospective data of 272 consecutive patients undergoing PG between 2010 and 2020 was collected and analysed to determine the postoperative pancreatic fistula (POPF) risk factors. The incidence of POPF was 143 cases (52.6%). The median DFA1 in patients with POPF was significantly higher than that of patients with NO-POPF (5483 versus 311, P < 0.001). DFA1 correlated with POPF in the area under the curve (AUC) of 0.84 (P < 0.001). When DFA1 was 2300 U/L, Youden index was the highest, with a sensitivity of 72.7% and a specificity of 82.9%. Logistic regression analysis showed that DFA1 ≥ 2300 U/L was an independent predictor of POPF (P < 0.001; OR: 12.855; 95% CI: 7.019-23.544). The AUC of DFA1 and clinically relevant postoperative pancreatic fistula (CR-POPF) was 0.674 (P < 0.001). DFA1 ≥ 2300 U/L can be used as an independent predictor of POPF after PG. DFA1 ≥ 3000 U/L can predict the occurrence of CR-POPF, when DFA1 ≥ 3000 U/L, the patients should be observed closely active for complications. © 2021 Royal Australasian College of Surgeons.

    Citation

    Shuai Yuan, Ji Hun Kim, Guang Yi Li, Woohyun Jung, O Kyu Noh, Min Jae Yang, Jae Chul Hwang, Byung Moo Yoo, Jin Hong Kim, Wook Hwan Kim. The value of drain fluid amylase as a predictor of postoperative pancreatic fistula after pancreaticogastrostomy. ANZ journal of surgery. 2022 Mar;92(3):419-425

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    PMID: 34850520

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