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Hemoglobin levels and 30-day mortality in patients after myocardial infarction

Erik Lipsic1, Iwan C C van der Horst, Adriaan A Voors

  • 1Department of Cardiology/Thorax Center, University Hospital Groningen, The Netherlands.

International Journal of Cardiology
|April 13, 2005
PubMed

Insights

Lower hemoglobin levels in acute myocardial infarction (MI) patients are linked to increased short-term mortality. This finding highlights the need for targeted interventions in anemic patients experiencing MI.

Area of Science:

  • Cardiology
  • Hematology

Background:

  • Anemia is a known risk factor for cardiovascular (CV) events in patients with coronary artery disease and heart failure.
  • The impact of hemoglobin levels on short-term CV mortality in acute myocardial infarction (MI) patients is not well-established.

Purpose of the Study:

  • To investigate the association between hemoglobin levels on admission and 30-day mortality in patients diagnosed with acute MI.

Main Methods:

  • A retrospective analysis of 1841 consecutive patients admitted for acute MI.
  • Patients were stratified based on hemoglobin levels: ≤10 g/dl or >10 g/dl on admission.
  • The primary endpoint was 30-day mortality.

Main Results:

  • Overall 30-day mortality was 10.3%.
  • Mortality was significantly higher in patients with hemoglobin ≤10 g/dl (21.6%) compared to those with hemoglobin >10 g/dl (9.3%) (p<0.001).
  • Multivariate analysis identified lower hemoglobin concentration as an independent predictor of 30-day mortality (HR 1.76, p=0.02).

Conclusions:

  • Reduced hemoglobin levels are associated with increased short-term mortality in acute MI patients.
  • Further research into therapeutic strategies for anemic patients with MI is warranted.
Abstract

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