an ecg with 2nd degree av block, 3d

2nd degree av block wenckebach second atrialventricular ecg 3d illustration electrocardiogram heart conduction cardiology medical rhythm cardiac health atrioventricular disorder tracing condition healthcare concept disease ekg abnormalities electrocardiograph diagnosis wave arrhythmia visuals monitoring cardiovascular treatment heartbeat education rate nodal function disturbance interpretation information graphics system