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Oxidized LDL, lipoprotein (a) and other emergent risk factors in acute myocardial infarction (FORTIAM study)

Miquel Gómez1, Vicente Valle, Fernando Arós

  • 1Servicio de Cardiología, Hospital del Mar, Universitat Autònoma de Barcelona, Barcelona, Spain.

Revista Espanola De Cardiologia
|April 30, 2009
PubMed

Insights

A small percentage of acute myocardial infarction (AMI) patients lack traditional risk factors. Elevated lipoprotein (a) and oxidized low-density lipoprotein levels independently predict poorer prognosis in AMI patients.

Area of Science:

  • Cardiology
  • Biomarkers
  • Risk Factor Analysis

Background:

  • Acute myocardial infarction (AMI) often presents with classical risk factors.
  • Understanding AMI in patients without these factors is crucial for comprehensive risk assessment.

Purpose of the Study:

  • To determine the prevalence of AMI without classical risk factors.
  • To identify emergent risk factors and their impact on 6-month prognosis in AMI patients.

Main Methods:

  • Multicenter cohort study (FORTIAM) of 1371 AMI patients.
  • Assessed classical risk factors and emergent markers: lipoprotein (a) [Lp(a)], oxidized low-density lipoprotein (oxLDL).
  • Follow-up for death, angina, and re-infarction over 6 months.

Main Results:

  • 8.0% of AMI patients lacked classical risk factors; prognosis was similar.
  • Elevated Lp(a) (>60 mg/dL) and oxLDL (>74 U/L) were independently associated with poorer 6-month prognosis.
  • Hazard ratios for Lp(a) and oxLDL were 1.40 and 1.48, respectively, adjusted for confounders.

Conclusions:

  • The proportion of AMI patients without traditional risk factors is low.
  • Emergent risk factors, specifically Lp(a) and oxLDL, significantly predict adverse outcomes in AMI.
  • These biomarkers offer prognostic value irrespective of classical risk factor status.
Abstract

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