1. The Automated Implantable Cardiac Defibrillator
Harold L. Paz, M.D., M.S., F.C.C.P., Daniel J. McCormick, D.O., Steven P. Kutalek, M.D., Arthur Patchefsky, M.D. 
CHEST 
Volume 106, Issue 5, Pages (November 1994)
DOI: /chest
Copyright © 1994 The American College of Chest Physicians Terms and Conditions

2. FIGURE 1
Lymph node showing multiple noncaseating granulomas consistent with sarcoidosis (hematoxylin-eosin, original magnification ×400).
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Copyright © 1994 The American College of Chest Physicians Terms and Conditions

3. FIGURE 2
An example of the frequent episodes of nonsustained ventricular tachycardia documented by ambulatory (Holter) monitoring in this patient. This tracing was recorded at the 22nd month after presentation. Three normally conducted sinus complexes are followed by five complexes of polymorphic nonsustained ventricular tachycardia with a maximum rate of 160 to 169 beats per minute, following which sinus rhythm is restored.
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Copyright © 1994 The American College of Chest Physicians Terms and Conditions

4. FIGURE 3
Top, Induction of sustained monomorphic ventricular tachycardia at the 30th month. Surface electrocardiographic leads I, aVF, and V1 are depicted together with an intracardiac recording from the right ventricular apex (RVA). The final three complexes of an eight-beat ventricular pacing drive train are followed by three ventricular extrastimuli, initiating sustained monomorphic ventricular tachycardia of a left bundle branch block morphology with left axis deviation. Cycle length of the induced arrhythmia is 240 ms (heart rate, 250 per minute); it required cardioversion for termination. Intermediate time line divisions (T) represent 100 ms. Bottom, Demonstration of a severely prolonged basal His-ventricular (HV) interval by electrophysiologic testing at the 30th month after presentation. Surface leads I, aVF, and V1 are depicted as are intracardiac right ventricular apical (RVA) and His bundle electrogram (HBE) recordings. Sinus tachycardia at a cycle length of 560 ms (heart rate, 107 beat per minute) is present. The second His bundle recording is marked by an arrow. The HV interval measures 120 ms, which is markedly prolonged. Intermediate time line divisions (T) represent 100 ms.
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Copyright © 1994 The American College of Chest Physicians Terms and Conditions