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Early recognition of catheter-induced left main coronary artery vasospasm: implications for revascularization

Ahmad Edris1, Pranav M Patel, Morton J Kern

  • 1Division of Cardiology, Department of Medicine, University of California-Irvine Medical Center, 101 The City Drive South, Orange, CA 92868, USA.

Catheterization and Cardiovascular Interventions : Official Journal of the Society for Cardiac Angiography & Interventions
|July 29, 2010
PubMed

Insights

Catheter-induced left main coronary artery vasospasm is a rare complication mimicking severe disease, potentially altering decisions for bypass surgery. High suspicion and advanced imaging are crucial for accurate diagnosis.

Area of Science:

  • Cardiology
  • Interventional Cardiology
  • Diagnostic Imaging

Background:

  • Catheter-induced left main coronary artery (LMCA) vasospasm is a rare complication during coronary angiography.
  • It can mimic severe atherosclerotic disease, complicating decisions regarding coronary artery bypass graft (CABG) surgery or percutaneous coronary intervention (PCI).

Observation:

  • Two cases illustrate catheter-induced LMCA vasospasm.
  • Case 1: A woman post-CABG with presumed severe LMCA disease showed normal coronaries on angiography.
  • Case 2: A man with severe LMCA stenosis showed no stenosis on repeat angiography.

Findings:

  • These cases highlight the importance of meticulous technique during angiography.
  • A high index of suspicion for LMCA vasospasm is necessary when findings are discordant.
  • Intravascular ultrasound (IVUS) can identify minimal atherosclerotic disease, suggesting vasospasm.

Implications:

  • Accurate diagnosis of LMCA vasospasm is critical to avoid unnecessary or inappropriate interventions like CABG or PCI.
  • Noninvasive imaging, such as computed tomography (CT) angiography, may aid in diagnosing LM spasm prior to surgical intervention.
  • Awareness of this complication can improve patient management and outcomes.

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