Figure 3From: A novel mitochondrial DNA deletion in a patient with Kearns-Sayre syndrome: a late-onset of the fatal cardiac conduction deficit and cardiomyopathy accompanying long-term rGH treatment Standard ECG showing complete atrio-ventricular block. Atrial rhythm (white circle) of 70 bpm and ventricular escape rhythm of 42 bpm, narrow QRS (black square). Paper speed 50 mm/s.Back to article page