Microvascular dysfunction in hypertrophic cardiomyopathy evaluated by cardiac magnetic resonance and computed

Sergio Moral1, Leticia Fernandez-Friera, Javier Sanz

  • 1Dept. of Cardiology, Hospital Universitario Doctor Josep Trueta, Girona, Spain. moral.sergio@yahoo.es

Acta Cardiologica
|July 30, 2010
PubMed

Insights

Hypertrophic cardiomyopathy (HCM) patients may experience chest pain due to microvascular dysfunction, leading to myocardial ischemia. Advanced imaging can identify risks associated with HCM progression and poor perfusion.

Area of Science:

  • Cardiology
  • Cardiovascular Imaging
  • Medical Diagnostics

Background:

  • Hypertrophic cardiomyopathy (HCM) is a complex cardiac condition.
  • Chest pain evaluation is crucial for patients with HCM.
  • Understanding the mechanisms of ischemia in HCM is vital.

Observation:

  • A 36-year-old woman with HCM presented with chest pain.
  • Stress cardiac MRI revealed severe anteroseptal hypertrophy and ischemia post-adenosine.
  • Delayed enhancement imaging showed extensive hyperenhancement in hypertrophic segments.

Findings:

  • No significant coronary artery disease was detected by CT angiography.
  • Severe hypertrophy and ischemia were observed in the anteroseptal wall.
  • Extensive myocardial hyperenhancement correlated with hypertrophic segments.

Implications:

  • Microvascular dysfunction in HCM may predispose to myocardial ischemia and sudden death.
  • The relationship between hypertrophy extent and perfusion reserve requires further investigation.
  • Non-invasive imaging is valuable for risk stratification in HCM patients.

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