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Related Experiment Videos

Endocardial pacing after Fontan-type procedures.

Bert Hansky1, Ute Blanz, Matthias Peuster

  • 1Department of Thoracic and Cardiovascular Surgery, Heart and Diabetes Center NRW, Ruhr University Bochum, Clinic for Thoracic and Cardiovascular Surgery, Bad Oeynhausen, Germany. bhansky@hdz-nrw.de

Pacing and Clinical Electrophysiology : PACE
|February 1, 2005
PubMed
Summary
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Endocardial pacing offers a novel solution for sinus node dysfunction after Fontan procedures. This transvenous approach avoids capture threshold issues common with epicardial leads, improving long-term outcomes.

Area of Science:

  • Cardiology
  • Pediatric Cardiology
  • Electrophysiology

Background:

  • Sinus node dysfunction is a common complication following Fontan-type procedures.
  • Epicardial pacing is the current standard treatment for these patients.

Purpose of the Study:

  • To evaluate the feasibility and efficacy of an endocardial pacing approach in patients with Fontan-type circulation.
  • To assess a novel lumenless lead system for transvenous implantation.

Main Methods:

  • Seven patients underwent lead implantation using a 4.1 French bipolar lumenless lead via a steerable guiding catheter.
  • Procedures included transvenous or open transatrial approaches, with preimplantation imaging and hemodynamic assessment.
  • Lead placement involved either de novo atrial pacing or combined atrial and ventricular pacing.

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Main Results:

  • The endocardial approach was successfully applied in seven pediatric patients, including those with complex anatomy.
  • Hemodynamic assessment confirmed unimpaired pulmonary artery blood flow post-implantation.
  • Postoperative management included anticoagulation as needed.

Conclusions:

  • Transvenous endocardial lead implantation is a viable alternative to epicardial pacing in Fontan patients.
  • The lumenless lead design is expected to maintain extractability due to its high tensile strength and lumenless structure.
  • This approach circumvents the issue of increasing capture thresholds seen with epicardial leads.