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Updated: May 5, 2026

Reduction of Iatrogenic Atrial Septal Defects with an Anterior and Inferior Transseptal Puncture Site when Operating the Cryoballoon Ablation Catheter
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Septal Branch Occlusion Leading to Complete Heart Block Post-Percutaneous Intervention: A Cautionary Tale in Left

AlMothana Manasrah1, Tamer Akel2, Firas Qaqa3

  • 1Internal Medicine Department, United Health Services-Wilson Medical Center, Johnson City, New York, USA.

Catheterization and Cardiovascular Interventions : Official Journal of the Society for Cardiac Angiography & Interventions
|February 12, 2025
PubMed

Insights

A patient with left bundle branch block experienced complete atrioventricular block after left anterior descending artery stenting. Maintaining septal perforator blood flow is crucial during LAD interventions in patients with conduction abnormalities.

Area of Science:

  • Cardiology
  • Interventional Cardiology
  • Electrophysiology

Background:

  • Left bundle branch block (LBBB) is a pre-existing condition that can affect cardiac conduction.
  • Percutaneous coronary interventions, such as stenting, carry potential risks, including cardiac conduction disturbances.
  • Septal perforator branches of the left anterior descending artery (LAD) are critical for the His-Purkinje system's blood supply.

Keywords:
complete heart blockpercutaneous intervention complicationseptal branch occlusionside branch occlusion

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