Hepatorenal syndrome (HRS) is a common cause of acute kidney injury (AKI) in patients with liver disease \[1\]. Increased activity and presence of vasodilators such as nitric oxide in cirrhotic patients leads to vasodilation, especially in the splanchnic circulation, resulting in hemodynamic changes that precipitate renal injury \[1\]. Patients may present with elevated serum creatinine (Cr), benign urine sediment, and low urine sodium \[1\].
There are two main classifications of HRS: HRS-AKI (previously known as type 1 HRS) and diuretic-resistant ascites (previously known as type 2 HRS) \[1\]. The ultimate treatment for patients with HRS is to improve hepatic function via treatment of underlying etiology or liver transplantation; however, this is not always immediately possible due to the high demand for liver transplantation among other factors \[1\]. Continuous renal replacement therapy (CRRT) can also be considered, especially in patients with severe electrolyte derangements such as hypokalemia or pulmonary edema, that are not responding to medical therapy \[1\]. Often, CRRT is used as a bridging therapy to stabilize patients until they are optimized for receiving a liver transplant \[1, 2\]. CRRT, however, comes with its own risks and disadvantages such as hypotension and increased risk of cardiac adverse events \[2\]. In certain cases, transjugular intrahepatic portosystemic shunts (TIPS) can benefit patients with HRS by reducing portal pressure resulting in increase in renal perfusion \[1\].
Study Type
OBSERVATIONAL
Enrollment
500
1.2.1. To perform a retrospective analysis of patients with HRS with the aim of comparing various treatment modalities such as vasoconstrictors, albumin, CRRT, Molecular Adsorbent Recirculating System (MARS), and TIPS.
Liver Institute of Methodist Dallas Medical Center
Dallas, Texas, United States
RECRUITINGPrimary Outcome for HRS-AKI patients
Mortality rates, morbidities, complications, and other clinically relevant outcomes in HRS-AKI patients
Time frame: 4 years
post transplant mortality rates
post-transplant mortality rates HRS-AKI-associated costs
Time frame: 4 years
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