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Study of pro-thrombotic and pro-inflammatory factors in Chagas cardiomyopathy

Leila Maria Magalhães Pessoa de Melo1, Germano Emílio Conceição Souza, Leandro Richa Valim

  • 1Instituto do Coração, Hospital das Clínicas, Faculdade de Medicina, USP.

Arquivos Brasileiros De Cardiologia
|November 27, 2010
PubMed

Insights

Chagas cardiomyopathy patients show no increased pro-thrombotic activity compared to non-Chagas patients. Non-Chagas patients exhibited higher fibrinogen and thromboelastography markers, indicating a pro-thrombotic state, while both groups had elevated inflammation.

Area of Science:

  • Cardiology
  • Hematology
  • Infectious Diseases

Background:

  • The interplay between inflammation and thrombosis in Chagas cardiomyopathy remains poorly understood.
  • Comparing these markers in Chagas versus non-Chagas heart failure is crucial for understanding disease mechanisms.

Purpose of the Study:

  • To investigate pro-thrombotic and pro-inflammatory markers in Chagas heart failure.
  • To compare these markers against patients with heart failure from other causes.

Main Methods:

  • A cross-sectional cohort study included 150 patients with heart failure (left ventricle ejection fraction < 45%).
  • Patients were categorized into Chagas-positive (G1) and Chagas-negative (G2) groups.
  • Pro-inflammatory (high-sensitivity CRP) and pro-thrombotic markers (thrombin-antithrombin, fibrinogen, von Willebrand factor antigen, P-selectin, thromboelastography) were assessed.

Main Results:

  • No significant difference in high-sensitivity CRP levels was observed between groups (p = 0.328).
  • Fibrinogen levels were significantly higher in the non-Chagas group (G2) (p = 0.015).
  • Thromboelastography parameters (MA, G, TG) were significantly elevated in G2 compared to G1 (p < 0.0013).

Conclusions:

  • This study found no evidence of a heightened pro-thrombotic state in Chagas disease patients.
  • Elevated fibrinogen and specific thromboelastography parameters suggest a pro-thrombotic tendency in non-Chagas heart failure.
  • Both Chagas and non-Chagas heart failure patients demonstrated increased inflammatory activity.
Abstract

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