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Hypertrophic cardiomyopathy, or HCM, is an autosomal dominant genetic disorder characterized by asymmetric left ventricular hypertrophy without ventricular dilation. It is more common in men and is typically diagnosed in young, athletic adults.EtiologyHCM is primarily genetic and is caused by mutations in genes encoding sarcomeric proteins. Researchers have identified over 1400 mutations across at least 11 different genes. Among these, the most frequently occurring mutations are found in the...
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A new cardiac variable identified?

Mark Doyle1

  • 1Allegheny General Hospital, Pittsburgh, PA, USA.

Cardiovascular Diagnosis and Therapy
|November 28, 2013
PubMed
Summary
This summary is machine-generated.

Cardiac Syndrome X (CSX) in women is challenging to diagnose. Cardiovascular magnetic resonance imaging (CMRI) offers a myocardial perfusion reserve index (MPRI) to assess CSX severity.

Keywords:
Cardiovascularcardiac syndrome X (CSX)magnetic resonance imaging (MRI)myocardial perfusion reserve index (MPRI)

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Area of Science:

  • Cardiology
  • Medical Imaging
  • Women's Health

Background:

  • Cardiac Syndrome X (CSX) presents diagnostic challenges in women.
  • The Women's Ischemic Syndrome Evaluation (WISE) study has focused on CSX.
  • Conventional diagnostic methods for CSX are often insufficient.

Purpose of the Study:

  • To evaluate the utility of Cardiovascular Magnetic Resonance Imaging (CMRI) in diagnosing CSX.
  • To establish the Myocardial Perfusion Reserve Index (MPRI) as a key indicator of CSX.
  • To investigate CSX in an all-female patient cohort.

Main Methods:

  • Utilizing CMRI to measure the MPRI.
  • Calculating MPRI as a ratio of resting to vasodilatation myocardial perfusion.
  • Comparing MPRI values in women with CSX to normal controls.

Main Results:

  • CMRI-derived MPRI was significantly lower in women with suspected CSX.
  • The MPRI demonstrated a clear distinction between CSX patients and healthy controls.
  • Low MPRI levels were consistently observed in a well-documented CSX female population.

Conclusions:

  • CMRI-measured MPRI provides unique and valuable information for CSX assessment.
  • MPRI should be considered a primary indicator of CSX disease severity.
  • CMRI offers a promising imaging modality for diagnosing and managing CSX in women.