CHALLENGE OF THE WEEK See Answer to February 12th Following Question Amit Noheria, MBBS, SM Which of the following is an explanation compatible with the ECG in the Figure? Figure. Twelve-lead electrocardiogram. Answer Options A. Sinus rhythm with first-degree atrioventricular (AV) block, bifascicular (right and left superior fascicle) block, and frequent premature junctional com- plexes in a pattern of bigemini B. Sinus rhythm with aberrantly conducted (right and left superior fascicle block) premature atrial complexes in a pattern of bigemini C. Sinus rhythm with second-degree type I AV block and rate-related bifascicu- lar (right and left superior fascicle) aberrancy D. Sinus rhythm with second-degree type I AV block, bifascicular (right and left superior fascicle) block, and rate-related pseudonormalization of QRS E. Sinus rhythm with complete AV block, ventricular escape rhythm, and pre- mature junctional (or AV nodal echo) beats in a pattern of bigemini Circ Arrhythm Electrophysiol is available at http://circep. ahajournals.org. © 2018 American Heart Association, Inc. Circ Arrhythm Electrophysiol. 2018;11:e006211. DOI: 10.1161/CIRCEP.118.006211 February 2018 1 Noheria; Challenge of the Week ANSWER TO FEBRUARY 12th QUESTION E. Change pacing mode to DDD event is also AV blocked, the operation switches temporarily to DDD. Increasing β-blocker (Option A) may
Circulation: Arrhythmia & Electrophysiology – Wolters Kluwer Health
Published: Feb 1, 2018
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