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Related Experiment Videos

Atypical access to typical atrial flutter.

Isabel Deisenhofer1, Heidi Estner, Andreas Pflaumer

  • 1Department of Cardio-Vascular Disease, Deutsches Herzzentrum München, Technische Universität München, Germany. deisenhofer@dhm.mhn.de

Heart Rhythm
|April 27, 2005
PubMed
Summary
This summary is machine-generated.

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Safety and effectiveness of the TactiFlex duo system: 6-month results of the FOCALFLEX study.

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Biventricular Impella Support for Ventricular Tachycardia Ablation in a Patient With Severe Dilated Cardiomyopathy.

Clinical case reports·2026

This study presents a novel technique for treating atrial flutter in a patient with congenital mitral atresia. Angioplasty enabled transvenous access, allowing successful ablation of the cavotricuspid isthmus.

Area of Science:

  • Cardiology
  • Electrophysiology
  • Congenital Heart Disease

Background:

  • Atrial flutter is often treated by ablating the cavotricuspid isthmus.
  • Congenital mitral atresia can complicate transvenous cardiac procedures.
  • Total cavopulmonal connection presents unique challenges for accessing the right atrium.

Observation:

  • Transvenous access to the tricuspid valve was not possible due to a total cavopulmonal connection.
  • A small fenestration between the total cavopulmonal connection and the right atrium was identified.

Findings:

  • Successful angioplasty of the fenestration enabled anterograde transvenous access to the right atrium.
  • Electroanatomic mapping confirmed peritricuspid reentry.
  • Successful ablation of the cavotricuspid isthmus was achieved.

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Implications:

  • This case demonstrates a viable strategy for atrial flutter ablation in complex congenital heart disease.
  • Percutaneous fenestration angioplasty can restore transvenous access for electrophysiology procedures.
  • Novel approaches are crucial for managing arrhythmias in patients with structural heart anomalies.