Journal
CLINICS AND RESEARCH IN HEPATOLOGY AND GASTROENTEROLOGY
Volume 46, Issue 7, Pages -Publisher
ELSEVIER MASSON, CORP OFF
DOI: 10.1016/j.clinre.2022.101899
Keywords
Liver surgery; Intraoperative; Fluid intake; AKI; Postoperative complications
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The study found that restrictive fluid intake strategy in hepatic surgery is a risk factor for postoperative acute kidney injury (AKI), leading to longer hospital stays and higher mortality. Meanwhile, a liberal fluid intake strategy can reduce the risk of AKI.
Background: Postoperative acute kidney injury (AKI) is a common complication in hepatic surgery. In hepatic surgery, relative hypovolemia may help to limit blood loss, but the consequences of restrictive fluid intake are unknown. The goal of this study was to determine the influence of intraoperative fluid intake on the incidence of AKI and its consequences. Methods: Data from 397 consecutive patients who underwent liver resection were prospectively recorded and retrospectively analyszed. We compared the incidence of postoperative acute kidney failure in patients given restrictive (< 5 mL/kg/h) versus liberal (> 5 mL/kg/h) fluid therapy. We calculated a 1:1 match propensity score using logistic regression to estimate the likelihood of patients receiving restrictive or liberal intraoperative fluid intakes. The association between the intraoperative fluid intake strategy and occurrence of postoperative AKI were tested using a Cox frailty model on the database of matched patients. Results: Postoperative AKI was diagnosed in 133 of the 397 patients. Fluid intake strategy was restrictive for 121 patients and liberal for 276 patients. After propensity score matching to balance confounding factors, the liberal strategy was associated with a significantly lower risk for postoperative AKI compared to the restrictive strategy (Hazard Ratio 0.40 [0.29; 0.56], P<0.001). Patients with postoperative AKI had longer hospital stays and higher mortality. There were no cases of further blood loss in the liberal fluid intake group. Conclusions: A restrictive fluid intake strategy is a risk factor for developing postoperative AKI, with serious consequences, without reducing blood loss in liver surgery. (c) 2022 Elsevier Masson SAS. All rights reserved.
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