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Biochemical evidence of mild hepatic dysfunction identifies decompensated heart failure patients with reversible renal dysfunction.


ABSTRACT:

Background

Differentiation of HF-induced renal dysfunction (RD) from irreversible intrinsic kidney disease is challenging, likely related to the multifactorial pathophysiology underlying HF-induced RD. In contrast, HF-induced liver dysfunction results in characteristic laboratory abnormalities. Given that similar pathophysiologic factors are thought to underlie both conditions, and that the liver and kidneys share a common circulatory environment, patients with laboratory evidence of HF-induced liver dysfunction may also have a high incidence of potentially reversible HF-induced RD.

Methods and results

Hospitalized patients with a discharge diagnosis of HF were reviewed (n = 823). Improvement in renal function (IRF) was defined as a 20% improvement in estimated glomerular filtration rate (eGFR). An elevated international normalized ratio (INR; odds ratio [OR] 2.8; P < .001), bilirubin (BIL; OR 2.2; P < .001), aspartate aminotransferase (AST; OR 1.8; P = .004), and alanine aminotransferase (ALT; OR 2.1; P = .001) were all significantly associated with IRF. Among patients with baseline RD (eGFR ?45 mL min(-1) 1.73 m(-2)), associations between liver dysfunction and IRF were particularly strong (INR: OR 5.7 [P < .001]; BIL: OR 5.1 [P < .001]; AST: OR 2.9 [P = .005]; ALT: OR 4.8 [P < .001]).

Conclusions

Biochemical evidence of mild liver dysfunction is associated with reversible RD in decompensated HF patients. In the absence of methodology to directly identify HF-induced RD, signs of HF-induced dysfunction of other organs may serve as an accessible method by which HF-induced RD is recognized.

SUBMITTER: Brisco MA 

PROVIDER: S-EPMC3884639 | biostudies-literature | 2013 Nov

REPOSITORIES: biostudies-literature

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Biochemical evidence of mild hepatic dysfunction identifies decompensated heart failure patients with reversible renal dysfunction.

Brisco Meredith A MA   McCauley Brian D BD   Chen Jennifer J   Parikh Chirag R CR   Testani Jeffrey M JM  

Journal of cardiac failure 20131017 11


<h4>Background</h4>Differentiation of HF-induced renal dysfunction (RD) from irreversible intrinsic kidney disease is challenging, likely related to the multifactorial pathophysiology underlying HF-induced RD. In contrast, HF-induced liver dysfunction results in characteristic laboratory abnormalities. Given that similar pathophysiologic factors are thought to underlie both conditions, and that the liver and kidneys share a common circulatory environment, patients with laboratory evidence of HF-  ...[more]

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