1. Exercise-Associated Cardiac Asystole in Persons Without Structural Heart Disease 
Hung-Fat Tse, MBBS, Chu-Pak Lau, MD, FCCP 
CHEST 
Volume 107, Issue 2, Pages (February 1995)
DOI: /chest
Copyright © 1995 The American College of Chest Physicians Terms and Conditions

2. Figure 1
Simultaneous arterial blood pressure and lead II ECG monitoring (paper speed, 50 mm/s) during head-up tilt table test at baseline and during isoproterenol (Isoprenaline) infusion. Baseline heart rate and blood pressure were 72 beats/min and 130/80 mm Hg, respectively, before isoproterenol infusion. After 10 min of isoproterenol infusion (from 1 µg/min to 3 µg/min) and tilting, blood pressure fell to 52/36 mm Hg and heart rate decreased to 67 beats/min (junctioned rhythm).
CHEST  , DOI: ( /chest )
Copyright © 1995 The American College of Chest Physicians Terms and Conditions

3. Figure 2
Continuous lead II ECG strips recorded during the exercise period. At 30 s after starting exercise, a 20-s sinus arrest with cardiac asyotole was noted that required cardiopulmonary resuscitation before sinus rhythm resumed. Each square on the ECG measures 0.2 s.
CHEST  , DOI: ( /chest )
Copyright © 1995 The American College of Chest Physicians Terms and Conditions