This protocol applies to hepatorenal syndrome–acute kidney injury (HRS-AKI) in patients with cirrhosis and ascites — specifically when rapidly developing AKI (serum creatinine rise of ≥0.3 mg/dl within two days, or ≥50% from baseline, and/or urinary output ≤0.5 ml/kg over ≥6 h, with no other evident cause such as shock or nephrotoxins) has not responded to first-line vasoconstrictor treatment.
The prior regimen — norepinephrine with albumin to increase mean arterial pressure, or octreotide combined with midodrine plus albumin as alternatives to terlipressin — did not achieve the required goal: improvement in serum creatinine (HRS reversal). Failure to reach this target is the trigger for escalation to this protocol.
HRS-AKI is a rapidly developing AKI defined as an increase in serum creatine by ≥ 0.3 mg/dl within two days or ≥50% from baseline value and/or decrease in urinary output ≤0.5 ml/kg in ≥6 h in patients with cirrhosis and ascites with no other evident cause for acute renal injury such as shock or nephrotoxins.
Liver transplantation is the definitive therapy for HRS.
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