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Prophylaxis of thromboembolic events in congestive heart failure

G Di Pasquale1, P Passarelli, M A Ribani

  • 1Divisione di Cardiologia, Ospedale Bellaria, Via Altura 3, 40139 Bologna, Italy.

Archives of Gerontology and Geriatrics
|November 1, 1996
PubMed

Insights

Patients with heart failure face a risk of thromboembolism. Anticoagulant therapy may be beneficial, especially for those with atrial fibrillation or left ventricular issues, but requires careful risk-benefit assessment.

Area of Science:

  • Cardiology
  • Thrombosis Research

Background:

  • Thromboembolism occurs in 0.9-5.5% of heart failure patients annually.
  • Risk factors include atrial fibrillation and prior thromboembolic events.
  • Ventricular dysfunction, lower ejection fraction, and reduced exercise oxygen consumption are associated with increased risk.

Purpose of the Study:

  • To evaluate the role of anticoagulant therapy in heart failure patients.
  • To assess thromboembolic risk factors in heart failure.
  • To determine the indication for anticoagulation in specific heart failure conditions.

Main Methods:

  • Review of existing studies on thromboembolism in heart failure.
  • Analysis of risk factors such as atrial fibrillation, ventricular dysfunction, and ejection fraction.
  • Evaluation of anticoagulant therapy outcomes in dilated cardiomyopathy.

Main Results:

  • No randomized trials support routine anticoagulation for all heart failure patients.
  • Anticoagulation appears indicated for left ventricular aneurysm with mobile thrombi.
  • In dilated cardiomyopathy, anticoagulation virtually eliminated thromboembolism (incidence 1.6-4.5%/year without treatment).

Conclusions:

  • Anticoagulant therapy may be beneficial for select heart failure patients.
  • Risk-benefit analysis is crucial for long-term anticoagulation decisions.
  • Further randomized studies are needed to confirm efficacy and indications.

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