• Nephron · Jan 2019

    Effect of Furosemide under Hyperchloremic Acidosis on Intraoperative Oliguria and Acute Kidney Injury in Patients with Normal Renal Function.

    • Mutsuhito Kikura, Junko Nishino, Yuji Suzuki, and Masahiro Uraoka.
    • Department of Anesthesiology, Hamamatsu Rosai Hospital, Japan Organization of Occupational Health and Safety, Hamamatsu, Japan, mkikura@hotmail.com.
    • Nephron. 2019 Jan 1; 142 (4): 320-327.

    BackgroundRenal function tends to deteriorate in a hyperchloremic acidifying environment, which is reflected by a decrease in the difference between sodium and chloride.ObjectivesTo examine the effect of furosemide administered under hyperchloremic acidosis on intraoperative oliguria and acute kidney injury in patients with preoperatively normal renal function.MethodsIn patients undergoing abdominal or orthopedic surgeries (April 2010-November 2018), we retrospectively identified patients who preoperatively had a normal renal function but experienced intraoperative oliguria under hyperchloremic acidosis (a sodium-chloride difference < 30 mEq/L) without dehydration. We compared the perioperative urine output and the incidence of postoperative acute kidney injury between patients who intraoperatively received an initial dose of 5 mg of furosemide (the furosemide group) and patients who did not intraoperatively receive furosemide (the control group).ResultsWe identified 62 patients in the furosemide group and 48 patients in the control group. The furosemide group intraoperatively received 0.11 ± 0.06 mg/kg of furosemide (range 0.06-0.39 mg/kg). Compared to the control group, the furosemide group had greater urine output (mL/kg/h) in the operating room (1.1 ± 0.7 vs. 0.3 ± 0.1, p < 0.01) and on postoperative day 1 (1.2 ± 0.5 vs. 1.1 ± 0.4, p = 0.02). The incidence of postoperative acute kidney injury was lesser in the furosemide group than that in the control group (8.0 vs. 27.0%, p < 0.01; multivariate OR 0.18; 95% CI 0.05-0.61; p < 0.01).ConclusionsIn surgery patients under hyperchloremic acidosis, furosemide (0.1 mg/kg) resolved intraoperative oliguria and reduced the incidence of postoperative acute kidney injury.© 2019 S. Karger AG, Basel.

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