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Postconditioning with Lactate-enriched Blood for Cardioprotection in ST-segment Elevation Myocardial Infarction
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High-density lipoproteins and myocardial necrosis in patients with acute myocardial infarction and ST segment

Ó Fabregat-Andrés1, M Ferrando-Beltrán, E Lucas-Inarejos

  • 1Servicio de Cardiología, Consorcio Hospital General Universitario de Valencia, Valencia, Spain. osfan@comv.es

Revista Clinica Espanola
|November 28, 2012
PubMed

Insights

Low high-density lipoprotein cholesterol (HDLC) is common in ST-segment elevation myocardial infarction (STEMI) patients. Lower HDLC levels correlate with more extensive myocardial necrosis and reduced left ventricular ejection fraction (LVEF) after STEMI.

Area of Science:

  • Cardiology
  • Biochemistry

Background:

  • Low high-density lipoprotein cholesterol (HDLC) is a known prognostic factor in acute coronary syndrome.
  • Understanding HDLC's role in myocardial injury post-STEMI is crucial for risk stratification.

Purpose of the Study:

  • To investigate the association between HDLC levels and the extent of myocardial necrosis.
  • To evaluate the impact of HDLC on left ventricular ejection fraction (LVEF) in STEMI patients.

Main Methods:

  • Retrospective analysis of 139 patients with STEMI who underwent cardiac magnetic resonance (CMR) imaging.
  • Assessment of myocardial necrosis using late gadolinium enhancement (LVEF) and measurement of LVEF.

Main Results:

  • Patients with HDLC ≤40 mg/dl exhibited significantly larger areas of myocardial necrosis (RTG transmural pattern and percentage of total mass).
  • Lower HDLC levels were associated with a significantly worse LVEF (49.7% vs. 57.2%).
  • The majority of STEMI patients (69%) presented with low HDLC levels.

Conclusions:

  • Low HDLC is prevalent in STEMI patients and linked to increased myocardial necrosis.
  • Reduced HDLC is associated with impaired left ventricular function post-STEMI, as evidenced by CMR findings.
Abstract

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