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. 2016 May 20;5(5):e001625. doi: 10.1161/JAHA.114.001625

Figure 3.

Figure 3

ECGs of patients harboring TRPM4 variants. A, ECG of a girl aged 14 years showing severe bradycardia caused by complete atrioventricular block, with narrow QRS complexes (heart rate 37 beats/min, QRS complex 69 ms). B, ECG in a man aged 45 years showing atrioventricular block type 1 (PR interval 240 ms) associated with an incomplete left bundle branch block (RS pattern in right precordial leads, RS pattern in left precordial leads, QRS complex 110 ms, QRS axis −15°). C, ECG in a girl aged 7 years showing atrioventricular block type 1 (PR interval 280 ms) associated with incomplete right bundle branch block (RSR′ pattern in right precordial leads, QRS complex 94 ms, QRS axis 135°). D, ECG in a man aged 47 years showing atrioventricular block type 1 (PR interval 220 ms) associated with incomplete left bundle branch block (RS pattern in right precordial leads, RS pattern in left precordial leads, QRS complex 100 ms, QRS axis −35°). E, ECG in a girl aged 7 years showing bradycardia caused by complete atrioventricular block with narrow QRS complex (heart rate 40 beats/min, QRS complex 80 ms). F, Holter ECG in a boy aged 6 months showing severe bradycardia caused by complete atrioventricular block with narrow QRS complexes (heart rate 55 beats/min, QRS complex 65 ms). G, Holter ECG in a boy aged 2 years showing severe bradycardia caused by 2/1 atrioventricular block with narrow QRS complexes (heart rate 40 beats/min, QRS 80 ms).