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Effects of VERApamil versus metoprolol to prevent progression from Paroxysmal to persistent Atrial Fibrillation

We hypothesize that verapamil reduces progression from paroxysmal to persistent AF, improves rate control, exercise tolerance and quality of life and reduces costs compared to metoprolol.

Electromechanical profiling of arrhythmogenic substrates and triggers in the long-QT syndrome

To identify arrhythmogenic electromechanical risk profiles in LQTS patients; in baseline conditions and during provocation; the recognition of risk profiles will improve risk stratification for sudden cardiac death.

Beat the Rhythm: the acute and long-term effects or prolonged walking exercise on the burden of atrial fibrillation in patients with atrial fibrillation

The primary objective of this explorative study is to investigate the effect of 3-month preparation period of regular walking exercise prior to the Nijmegen 4-Day marches on objectively measured AF burden (primary parameter), self-reported AF burden…