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Catheter Ablation in Combination With Left Atrial Appendage Closure for Atrial Fibrillation
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Atrioventricular Nodal Catheter Ablation in Atrial Fibrillation Complicating Congestive Heart Failure

Osmar Antonio Centurión1,2, Karina Elizabeth Scavenius2, Laura B García1

  • 1Department of Health Science's Investigation. Sanatorio Metropolitano. Fernando de la Mora. Paraguay.

Journal of Atrial Fibrillation
|November 21, 2018
PubMed

Insights

Atrial fibrillation (AF) in heart failure (HF) patients worsens outcomes. AV nodal ablation and pacing improve left ventricular function, symptoms, and quality of life in selected drug-refractory AF patients.

Area of Science:

  • Cardiology
  • Electrophysiology
  • Heart Failure Research

Background:

  • Atrial fibrillation (AF) significantly worsens outcomes and prognosis in heart failure (HF) patients, increasing mortality and hospitalization risks.
  • Optimal medical treatment may fail to improve symptoms and quality of life in HF patients with severe left ventricular dysfunction and uncontrolled ventricular rate due to AF.
  • Cardiac devices like those for cardiac resynchronization therapy (CRT) or catheter ablation are often necessary when medical treatment fails.

Purpose of the Study:

  • To analyze the impact of atrio-ventricular nodal (AVN) catheter ablation and permanent pacemaker implantation on selected heart failure patients with drug-refractory atrial fibrillation.
  • To document improvements in left ventricular function, symptoms, exercise tolerance, clinical outcomes, and quality of life.

Main Methods:

  • Review and analysis of published data on selected heart failure patients with paroxysmal and persistent drug-refractory AF.
  • Inclusion of patients who underwent atrio-ventricular nodal (AVN) catheter ablation and permanent pacemaker implantation.
  • Assessment of acute and long-term improvements in cardiac function and patient-reported outcomes.

Main Results:

  • Atrio-ventricular nodal (AVN) catheter ablation in conjunction with permanent pacemaker implantation demonstrated significant improvements.
  • Observed benefits included enhanced left ventricular function, symptom reduction, improved exercise tolerance, and better quality of life.
  • These positive outcomes were documented in selected heart failure patients with paroxysmal and persistent drug-refractory AF.

Conclusions:

  • Atrio-ventricular nodal (AVN) catheter ablation and permanent pacemaker implantation can be beneficial for selected heart failure patients with drug-refractory AF.
  • This approach can lead to significant hemodynamic improvement and better clinical outcomes.
  • Despite initial concerns about ablating functional tissue, the data support its efficacy in improving cardiac function and patient well-being in this specific population.

Keywords:
AVN AblationAtrial FibrillationHeart FailurePacemaker Implantation

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