case_images: PMC5030394_01
case_images: Patient's ECG, showing a first degree heart block with an intraventricular conduction delay. PR interval: 302 ms, QRS duration: 144 ms, and ventricular rate: 76 beats per minute.
case_images: CRIA2016-9278409.001.jpg
case_images: PMC5030394_01_CRIA2016-9278409.001.jpg
case_images: fig1
case_images: An ECG showed a first degree heart block with an intraventricular conduction delay; see Figure 1.