Congenital Heart Disease and Tachyarrhythmia: a Predestined Match?

In summary, the high incidence of tachyarrhythmia in ageing patients with Congenital heart defects and the improved mapping techniques over the years went together with increased knowledge of the underlying mechanism and improved outcome of ablative therapy. In patients with haemodynamically unstable tachyarrhythmia or patients with symptoms and drug-refractory tachyarrhythmia, catheter ablation should be considered. The possibility of multiple arrhythmias and previous, failed invasive procedures should be taken into account in order to estimate the success rate of ablative therapy. Yet, after successful ablative therapy new tachycardia continue to develop. Insight into the development of these recurrent tachycardia is essential in order to develop preventive strategies. Another challenge is to elucidate the mechanism of atrial fibrillation in this study population, as the incidence of AF continues to rise in this ageing population.