Elite Tennis Player with a Complete Atrio-Ventricular Block

This young elite tennis player, 14 years old, was referred for cardiologic evaluation in our Institute (in the year 1977) because of a second-degree atrio-ventricular (AV) block, type 1 observed on resting 12-lead ECG, performed at preparticipation screening. No known cardiovascular disease or symptoms (such as syncope, pre-syncope or dizziness and palpitations) were referred in the medical history. Family history was negative for known cardiovascular disease or sudden death.