PMC4556291_01
Electrocardiograms before and after admission.. Notes: (A) An electrocardiogram shows bradycardia with Mobitz type II second-degree atrioventricular block and complete left bundle branch block 1 month before admission. (B) An electrocardiogram shows third-degree atrioventricular block on admission.
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Electrocardiogram showed bradycardia with Mobitz type II second-degree atrioventricular block (Figure 1A). Electrocardiogram showed intermittent third-degree atrioventricular block (Figure 1B).
An electrocardiogram shows biventricular pacing after CRT-D implantation.. Abbreviation: CRT-D, cardiac resynchronization therapy-defibrillator.
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Biventricular pacing was begun immediately after implantation of the CRT-D (Figure 2).