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[Big endothelin and chronic heart failure].

J Spinar1, L Spinarová, J Vítovec

  • 1II. interní klinika FN u sv. Anny, Brno.

Vnitrni Lekarstvi
|February 21, 2002
PubMed
Summary

Plasma levels of big endothelin and endothelin-1 are significantly elevated in chronic heart failure patients. These markers show increased levels correlating with disease severity and pulmonary congestion, suggesting diagnostic utility.

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Area of Science:

  • Cardiology
  • Biomarkers
  • Heart Failure Research

Context:

  • Chronic heart failure (CHF) management relies on accurate prognostic and diagnostic tools.
  • Current non-invasive parameters for CHF assessment have limitations.
  • Endothelin peptides are implicated in cardiovascular pathophysiology.

Purpose:

  • To evaluate the diagnostic significance of plasma big endothelin and endothelin-1 levels in patients with chronic heart failure.
  • To compare the efficacy of these endothelin markers against established non-invasive parameters in CHF assessment.
  • To determine the correlation between endothelin levels and heart failure severity (NYHA class) and pulmonary congestion.

Summary:

  • A study of 124 patients revealed significantly elevated plasma levels of big endothelin and endothelin-1 in those with chronic heart failure compared to healthy individuals.

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  • Patients in NYHA class IV exhibited a six-fold increase in these markers versus NYHA class II-III, while even milder CHF stages showed doubled levels.
  • Elevated endothelin levels were also observed in patients with interstitial pulmonary edema, indicating a link to fluid overload.

    • Impact:

    • Plasma endothelin assessment demonstrates high sensitivity, suggesting its potential integration into routine diagnostic protocols for chronic heart failure.
    • These findings highlight big endothelin and endothelin-1 as promising biomarkers for stratifying heart failure severity and guiding clinical management.
    • The study underscores the role of the endothelin system in the pathophysiology of heart failure and pulmonary complications.