Atrio-ventricular conduction disturbance due to Lyme carditis

An active professional sportsman was admitted to our hospital with atrio-ventricular conduction disturbances. Purpose of admission was to insert a definitive pacemaker. During recording of the symptoms and patient history, the patient mentioned a tick-bite on the neck, followed by the only symptom of atrio-ventricular conduction disturbances, four months later. Serological tests came back negative…