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Updated: Sep 26, 2026

Catheter Ablation in Combination With Left Atrial Appendage Closure for Atrial Fibrillation
Published on: February 26, 2013
Catheter ablation of left free wall accessory pathway in a patient with inferior vena cava interruption
1Department of Cardiac Pacing and Electrophysiology, Escorts Heart Institute and Research Centre, New Delhi. tskler@hotmail.com
Insights
Standard heart access via the femoral vein and inferior vena cava can be challenging. Alternative routes through the azygos vein and superior vena cava offer solutions for difficult cardiac access.
Area of Science:
- Cardiovascular medicine
- Interventional cardiology
- Vascular anatomy
Background:
- Right heart access is crucial for diagnostic and interventional cardiac procedures.
- The femoral vein and inferior vena cava are the conventional routes for accessing the right side of the heart.
Observation:
- Anatomical variations or inferior vena cava obstructions can impede standard cardiac access.
- These challenges necessitate the exploration of alternative venous pathways.
Findings:
- The azygos vein and superior vena cava serve as viable alternative routes for right heart access.
- These alternative pathways can be successfully utilized when standard access is compromised.
Implications:
- Provides alternative strategies for interventional cardiologists when facing challenging venous anatomy.
- Enhances the feasibility of essential cardiac procedures in patients with complex venous structures.
- Broadens the scope of treatable conditions by ensuring reliable access to the right heart.
Abstract:
Access to the right side of the heart for diagnostic and interventional procedures is usually obtained via the femoral vein and inferior vena cava. Anatomic variations or obstruction of the inferior vena cava can make this access difficult. In such cases, alternative routes to the right side of the heart such as the azygos vein and the superior vena cava can be used.
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