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.
Abstract

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