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Anemia and coronary artery disease: pathophysiology, prognosis, and treatment

Jennifer A Rymer1, Sunil V Rao

  • 1Department of Medicine, Division of Cardiology, Duke University School of Medicine, Duke Clinical Research Institute, Durham, North Carolina, USA.

Coronary Artery Disease
|December 28, 2017
PubMed

Insights

Anemia in coronary artery disease (CAD) is complex. This review examines anemia

Area of Science:

  • Cardiology
  • Hematology

Background:

  • Anemia in coronary artery disease (CAD) presents complex mechanisms, pathophysiology, and treatment challenges.
  • Hemodynamic shifts in acute anemia can lead to progressive arterial wall and left ventricular hypertrophy with chronic anemia.

Purpose of the Study:

  • To review anemia as an independent risk factor for CAD events and cardiovascular mortality post-percutaneous coronary intervention.
  • To investigate optimal blood transfusion thresholds and strategies (liberal vs. conservative) in CAD patients.
  • To evaluate the evidence for iron replacement and erythropoietin-stimulating agents in CAD patients.

Main Methods:

  • Systematic review of existing literature.
  • Analysis of hemodynamic changes associated with anemia.
  • Evaluation of cardiovascular outcomes and mortality data.

Main Results:

  • Anemia is an independent risk factor for adverse cardiovascular events and mortality after percutaneous coronary intervention.
  • Evidence suggests specific thresholds for blood transfusion in CAD patients, with varying outcomes based on strategy.
  • Lack of robust evidence for iron replacement in CAD; potential risks associated with erythropoietin-stimulating agents.

Conclusions:

  • Anemia management in CAD requires careful consideration of transfusion strategies and risks.
  • Further research is needed to clarify the role of iron and erythropoietin-stimulating agents in CAD patients with anemia.

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