Prognostic value of pro-adrenomedullin and copeptin in acute infective endocarditis

Rosa Zampino1,2, Domenico Iossa3, Maria Paola Ursi1

  • 1Department of Advanced Medical and Surgical Sciences, University of Campania "Luigi Vanvitelli", Naples, Italy.

BMC Infectious Diseases
|January 8, 2021
PubMed

Insights

Prognostic biomarkers pro-adrenomedullin and copeptin may predict worse outcomes in infective endocarditis (IE). Procalcitonin (PCT) indicates Staphylococcus aureus infection, while C-reactive protein (CRP) signals embolic risk.

Area of Science:

  • Cardiology
  • Infectious Diseases
  • Biomarker Research

Background:

  • Infective endocarditis (IE) poses a significant mortality risk, with prognosis challenging to predict using clinical data alone.
  • Biomarkers have demonstrated utility in managing various cardiac conditions.
  • This study investigated the prognostic value of procalcitonin (PCT), pro-adrenomedullin (pro-ADM), and copeptin in IE.

Purpose of the Study:

  • To evaluate the prognostic significance of PCT, pro-ADM, and copeptin in patients with IE.
  • To explore the relationship between these biomarkers, disease characteristics, and the established biomarker C-reactive protein (CRP).

Main Methods:

  • A retrospective analysis of 196 patients diagnosed with definite IE.
  • Collection and analysis of clinical, laboratory, and echocardiography data, including comorbidities.
  • Measurement of PCT, pro-ADM, and copeptin from plasma samples collected upon admission during the acute disease phase.

Main Results:

  • Pro-ADM and copeptin levels were elevated in older patients and those with chronic kidney disease.
  • Pro-ADM independently predicted hospital mortality (OR 3.29), and copeptin independently predicted 1-year mortality (OR 2.55).
  • High PCT levels correlated strongly with Staphylococcus aureus infection (p=0.001), and CRP was associated with embolic events (p=0.003).

Conclusions:

  • Distinct biomarkers are associated with specific outcomes in IE.
  • Pro-ADM and copeptin may indicate a poorer prognosis upon hospital admission, identifying patients needing intensive management.
  • CRP serves as a cost-effective marker for embolic risk, while high PCT suggests Staphylococcus aureus etiology.
Abstract

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