1. AV Block on Exertion: Pulmonary Sarcoidosis with Involvement of the His-Purkinje System 
Stephan H. Winnik, MD, PhD, Thomas F. Lüscher, MD, Bernhard Herzog, MD, Laurent M. Haegeli, MD 
The American Journal of Medicine 
Volume 128, Issue 12, Pages e31-e33 (December 2015)
DOI: /j.amjmed
Copyright © 2015 Elsevier Inc. Terms and Conditions

2. Figure
(A) Resting electrocardiogram (ECG) showing a bifascicular block with a left anterior hemiblock and a complete right bundle branch block. (B) Cardiac magnetic resonance imaging (MRI) scan, short axis, late gadolinium enhancement, no signs of fibrosis. (C) ECG during spiroergometry with a 2:1 atrioventricular block at a workload of 40 watts. (D) ECG during spiroergometry with high-degree atrioventricular block with a 3:1 conduction, and an appropriate sinus rate of 150 beats per minute. All ECGs shown were written at a speed of 25 mm/s and at 10.0 mm/mV.
The American Journal of Medicine  , e31-e33DOI: ( /j.amjmed )
Copyright © 2015 Elsevier Inc. Terms and Conditions