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Related Experiment Videos

Altered coronary endothelial function in a patient with asymptomatic left ventricular dysfunction

C R Cannan1, M D McGoon, D R Holmes

  • 1Division of Cardiovascular Diseases, Mayo Clinic and Foundation, Rochester, MN 55905, USA.

International Journal of Cardiology
|February 1, 1996
PubMed
Summary

Coronary endothelial dysfunction was observed in an asymptomatic patient with early cardiomyopathy. This suggests the endothelium plays a crucial role in the initial stages of heart failure development.

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Area of Science:

  • Cardiology
  • Vascular Biology
  • Heart Failure Pathophysiology

Background:

  • Coronary endothelial dysfunction is linked to symptomatic heart failure.
  • Endothelial dysfunction is implicated in cardiomyopathy pathogenesis, even with normal coronary angiograms.
  • The endothelium's role in early, asymptomatic heart failure remains less understood.

Observation:

  • An asymptomatic patient presented with early-stage cardiomyopathy.
  • Coronary angiography and intravascular ultrasound showed no signs of coronary artery disease.
  • Intracoronary acetylcholine infusion induced epicardial coronary artery vasoconstriction and reduced coronary blood flow.

Findings:

  • The patient exhibited abnormal coronary endothelial function.
  • Endothelial dysfunction was present despite the absence of overt coronary disease.

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  • Left ventricular dysfunction was evident in an asymptomatic individual.

    • Implications:

    • Endothelial dysfunction can occur in asymptomatic left ventricular dysfunction.
    • This case underscores the endothelium's potential significance in the early development of heart failure.
    • Further research into endothelial function may reveal novel therapeutic targets for preventing heart failure progression.