See the article "".
References
1. Garcia-Tsao G, Parikh CR, Viola A. Acute kidney injury in cirrhosis. Hepatology. 2008; 48:2064–2077.


2. Schrier RW, Shchekochikhin D. Assessment of renal function in heart failure. J Am Coll Cardiol. 2012; 59:1716–1718.


3. Warner NS, Cuthbert JA, Bhore R, Rockey DC. Acute kidney injury and chronic kidney disease in hospitalized patients with cirrhosis. J Investig Med. 2011; 59:1244–1251.


4. Korean Association for the Study of the Liver (KASL). KASL clinical practice guidelines for liver cirrhosis: ascites and related complications. Clin Mol Hepatol. 2018; 24:230–277.
5. Angeli P, Merkel C. Pathogenesis and management of hepatorenal syndrome in patients with cirrhosis. J Hepatol. 2008; 48 Suppl 1:S93–S103.


6. Alsaad AA, Wadei HM. Fractional excretion of sodium in hepatorenal syndrome: clinical and pathological correlation. World J Hepatol. 2016; 8:1497–1501.


7. Fagundes C, Pépin MN, Guevara M, et al. Urinary neutrophil gelatinase-associated lipocalin as biomarker in the differential diagnosis of impairment of kidney function in cirrhosis. J Hepatol. 2012; 57:267–273.


8. Schrier RW. Diagnostic value of urinary sodium, chloride, urea, and flow. J Am Soc Nephrol. 2011; 22:1610–1613.
9. Gill N, Nally JV Jr, Fatica RA. Renal failure secondary to acute tubular necrosis: epidemiology, diagnosis, and management. Chest. 2005; 128:2847–2863.
10. Mishra J, Ma Q, Prada A, et al. Identification of neutrophil gelatinase-associated lipocalin as a novel early urinary biomarker for ischemic renal injury. J Am Soc Nephrol. 2003; 14:2534–2543.


11. Lee JH, Yoon EL, Park SE, et al. Clinical significance of urinary neutrophil gelatinase-associated lipocalin levels in defining the various etiologies of acute kidney injury in liver cirrhosis patients. Korean J Gastroenterol. 2019; 74:212–218.

