Tachyarrhythmias in congenital heart disease

Jaume Francisco-Pascual1,2,3, Núria Mallofré Vila1, Alba Santos-Ortega1,2,3

  • 1Unitat D'Arritmies, Servei de Cardiologia, Hospital Universitari Vall D'Hebron, Vall d'Hebron Institut de Recerca (VHIR), Vall d'Hebron Barcelona Hospital Campus, Barcelona, Spain.

Insights

Adults with congenital heart disease (CHD) face increased arrhythmia risks. This review covers common tachyarrhythmias, treatment options like catheter ablation, and management strategies for improved patient outcomes.

Area of Science:

  • Cardiology
  • Adult Congenital Heart Disease
  • Electrophysiology

Background:

  • Rising prevalence of adult congenital heart disease (CHD) due to medical advancements.
  • Increased susceptibility to arrhythmias in adult CHD patients due to surgical modifications and hemodynamic alterations.
  • Arrhythmias are a leading cause of morbidity, mortality, hospitalizations, and sudden death in adult CHD.

Purpose of the Study:

  • To review common tachyarrhythmias in adult congenital heart disease.
  • To discuss current and emerging treatment options for these arrhythmias.
  • To outline clinical management strategies for optimizing care in this complex patient population.

Main Methods:

  • Review of current literature on tachyarrhythmias in adult congenital heart disease.
  • Discussion of pharmacological and interventional treatment modalities.
  • Emphasis on integrated imaging and electroanatomic navigation for catheter ablation.

Main Results:

  • Adult CHD patients commonly experience supraventricular and ventricular arrhythmias, with patterns varying by CHD type.
  • Macroreentrant atrial tachycardias (e.g., cavotricuspid isthmus-dependent flutter) and ventricular arrhythmias (especially post-surgical) are prevalent.
  • Catheter ablation, guided by advanced imaging and navigation, is a preferred treatment, though challenging due to complex anatomy.

Conclusions:

  • Effective management of tachyarrhythmias in adult CHD requires a multidisciplinary approach.
  • Risk stratification for sudden cardiac death remains a significant clinical challenge.
  • Continued research is needed to refine treatment strategies and improve long-term outcomes.

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