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Signal Acquisition, Score Interpretation, and Economics of a Non-Invasive Point-of-Care Test for Coronary Artery Disease
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[Totally asymptomatic coronary left main artery critical stenosis: when non-invasive tests are falsely reassuring]

F Aboukhoudir1, S Rekik, N Salloum

  • 1Hôpital d'Avignon, centre hospitalier d'Avignon, 305, rue Raoul-Follereau, 84902 Avignon cedex 9, France.

Annales De Cardiologie Et D'Angeiologie
|September 24, 2013
PubMed

Insights

Severe left main coronary artery stenosis can be asymptomatic. Non-invasive ischemia testing may be falsely reassuring in these critical cases, highlighting the need for advanced diagnostic methods.

Area of Science:

  • Cardiology
  • Diagnostic Imaging
  • Ischemia Assessment

Background:

  • Severe left main coronary artery stenosis is typically symptomatic and a contraindication for non-invasive ischemia testing.
  • Standard non-invasive tests often reveal significant ischemia in symptomatic patients with left main disease.

Observation:

  • A 69-year-old asymptomatic male presented with critical distal left main artery stenosis.
  • Initial treadmill and dobutamine stress echocardiography tests were falsely negative for significant ischemia.

Findings:

  • Despite a critical left main stenosis, initial non-invasive tests did not detect significant ischemia.
  • Subsequent dobutamine 2D strain echocardiography revealed pathological findings, indicating significant ischemia.

Implications:

  • This case underscores the potential for false reassurance with standard ischemia testing in critical left main stenosis.
  • Advanced techniques like dobutamine 2D strain may be crucial for accurate diagnosis in select, asymptomatic patients.
  • Rethinking diagnostic strategies for left main coronary artery stenosis is warranted.

Keywords:
AngiographyCoronarographieLeft main stenosisStress dobutamine ecographySténose du tronc communÉcocardiographie de stress à la dobutamine

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