Prospective cohort study including 150 patients with pre-excitation on ECG referred to our clinic for risk assessment. There will be equal numbers of symptomatic and asymptomatic patients included in the study. Each patient will perform an exercise stress test on bicycle before an invasive electrophysiological test. The purpose of this study is to compare exercise stress testing on bicycle to an invasive electrophysiological study, regarding risk assessment of patients with pre-excitation. The electrophysiology study is set as reference.
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RASAP
Timeframe: Approximately 1 year from inclusion to 6 months follow-up.