Hemoglobin and High-Density Lipoprotein as Biomarker of Left Atrial Dilatation in Sickle Cell Disease

Guillaume Feugray1, Maximilien Grall2, Baptiste Gillardin3

  • 1Department of General Biochemistry, Normandie University, UNIROUEN, INSERM U1096 EnVI CHU Rouen Rouen France.

Ejhaem
|August 27, 2025
PubMed

Insights

Sickle cell disease (SCD) patients often have cardiac remodeling. Biomarkers like hemoglobin and HDL-C can predict left atrial enlargement, aiding early detection of heart issues in SCD.

Area of Science:

  • Cardiology
  • Hematology
  • Biomarkers

Background:

  • Sickle cell disease (SCD) is linked to cardiac remodeling, especially left atrial dilatation, a predictor of poor cardiovascular outcomes.
  • Echocardiography is crucial for assessing cardiac abnormalities in SCD patients.

Discussion:

  • Left atrial dilatation affects 61% of adult SCD patients.
  • Dilatation is significantly associated with hemoglobin levels, hemoglobin S, HDL-C, and the atherogenic index of plasma.
  • An algorithm combining low hemoglobin (≤ 9.7 g/dL) and low HDL-C (≤ 50 mg/dL) demonstrated high diagnostic accuracy.

Key Insights:

  • Biomarker-based screening can identify SCD patients at risk for left atrial remodeling.
  • Early detection of cardiac complications in SCD is feasible through targeted biomarker assessment.

Outlook:

  • This approach is particularly valuable in resource-limited settings for proactive cardiovascular care in SCD.
  • Further research can refine predictive algorithms for comprehensive SCD cardiac risk stratification.

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