Related Experiment Video

Updated: Dec 21, 2025

A New Single Chamber Implantable Defibrillator with Atrial Sensing: A Practical Demonstration of Sensing and Ease of Implantation
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Giant Left Main Coronary Artery Aneurysm Presenting as Multiple Implantable Cardioverter Defibrillator Shocks

Yury Malyshev1, Asma Syed2, Ricardo Castillo2

  • 1Cardiology, Maimonides Medical Center, Brooklyn, USA.

Cureus
|May 16, 2020
PubMed

Insights

Giant aneurysms of the left main coronary artery, a rare finding, can present as ventricular tachycardia. This case highlights a unique presentation and reviews management strategies for these rare cardiac conditions.

Area of Science:

  • Cardiology
  • Vascular Medicine

Background:

  • Giant aneurysms of the left main coronary artery (LMCA) are exceedingly rare, affecting less than 0.02% of patients.
  • Typically, coronary aneurysms are associated with atherosclerosis and present similarly to coronary artery disease.

Observation:

  • This report details the first case of a giant LMCA aneurysm presenting as ventricular tachycardia in a 57-year-old male with heart failure.
  • The patient experienced multiple defibrillator shocks due to the ventricular tachycardia.

Findings:

  • The study highlights an unusual clinical manifestation of a giant LMCA aneurysm.
  • It underscores the potential for rare coronary artery pathologies to cause life-threatening arrhythmias.

Implications:

  • This case expands the known clinical spectrum of giant LMCA aneurysms.
  • It emphasizes the importance of considering rare etiologies in patients with refractory ventricular arrhythmias and heart failure.

Keywords:
coronary artery aneurysmdefibrillator shockleft main aneurysmleft main coronary artery aneurysmventricular tachycardia

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