Related Experiment Video
Updated: May 15, 2026

A Mouse 5/6th Nephrectomy Model That Induces Experimental Uremic Cardiomyopathy
Published on: November 7, 2017
Concomitant renal and hepatic dysfunctions in chronic heart failure: clinical implications and prognostic
Gerhard Poelzl1, Michael Ess, Andreas Von der Heidt
1Dep. of Internal Medicine III, Cardiology, Innsbruck Medical University, Austria. gerhard.poelzl@uki.at
Insights
Chronic heart failure patients with impaired kidney and liver function face a higher risk of adverse outcomes. Concurrent dysfunction significantly worsens prognosis, highlighting the importance of monitoring both organs.
Area of Science:
- Cardiology
- Nephrology
- Hepatology
Background:
- Cardio-renal syndrome is prevalent in chronic heart failure (CHF).
- Liver function, indicated by GGT, is increasingly recognized as a predictor in CHF.
- Joint assessment of renal and hepatic function in CHF is warranted.
Purpose of the Study:
- To investigate the characteristics and prognostic significance of renal and hepatic dysfunction in CHF patients.
- To explore the relationship between renal and hepatic impairment and disease severity.
- To identify predictors of renal and hepatic dysfunction in CHF.
Main Methods:
- Evaluated clinical and laboratory data of 1290 ambulatory CHF patients.
- Assessed hemodynamics in 253 patients.
- Defined endpoint as all-cause mortality or heart transplantation.
Main Results:
- Prevalence of reduced eGFR and elevated GGT was 25% and 44%, respectively.
- Renal and hepatic dysfunctions were linked to disease severity and independently predicted adverse outcomes.
- Venous congestion, not cardiac index, predicted changes in eGFR and GGT.
Conclusions:
- Renal and hepatic dysfunction correlate with functional status and portend a poor prognosis in mild to moderate CHF.
- Concurrent renal and hepatic impairment signifies disease progression and increased risk.
- Venous congestion, rather than forward failure, appears to drive renal and hepatic dysfunction in these patients.
Background:
The cardio-renal syndrome is common and eGFR is an established biomarker in chronic heart failure (CHF). Recent findings also indicate a predictive role of liver function abnormalities such as GGT in CHF. We aimed to jointly investigate the characteristics and importance of renal and hepatic failure in CHF.
Methods:
Clinical and laboratory parameters of 1290 ambulatory patients (NYHA class I 25%, II 47%, III/IV 27%; median LV-EF 29%) were evaluated. Hemodynamics was available in 253 patients. The endpoint was defined as death from any cause or heart transplantation.
Results:
eGFR <60mL/min and GGT elevations were highly prevalent (25% and 44%, respectively; 12.8% for both). Renal and hepatic dysfunctions were correlated with disease severity and independently associated with adverse outcome in univariate (p<0.001) and multivariate analyses (p=0.012 and p<0.001, respectively). Signs of congestion and elevated CVP but not CI were independent predictors of changes in eGFR and GGT. In patients with concurrent impairment of both organs estimated five-year event rate was 46% as compared to 25% in patients with eGFR and GGT in the normal ranges (HR 3.12, 95% CI 2.33-4.18; p<0.001).
Conclusions:
Impairment of renal and hepatic function is related to functional status and a poor prognosis in patients with mild to moderate heart failure. Concurrent involvement of both organs indicates disease progression and further elevates the hazard for adverse outcomes. Moreover, our data suggest that venous congestion rather than forward failure accounts for the development of renal and hepatic dysfunctions in these patients.
Related Concept Videos
Heart Failure I: Introduction
Heart Failure Drugs: Diuretics
Heart Failure VI: Adjunct Therapies
Heart Failure III: Clinical Manifestations
Pathophysiology of Heart Failure
Heart Failure V: Medical Management