Holter monitor
Premature heart beats can be asymptomatic (the patient does not complain about anything). The subject may experience palpitations, a feeling of cardiac "pause". Taking (prolonged) pulse may result in a rhythm that seems irregular. Electrocardiography and laser Doppler imaging allow to visualize Premature heart beats. From their appearance, their location can be assessed. The Holter monitor allows to quantify them, to specify their characteristics and their repetition.