1. Improved Ventilatory Response to Exercise after Cardioversion of Chronic Atrial Fibrillation to Sinus Rhythm 
Torbjörn Lundström, M.D., Östen Karlsson, M.T. 
CHEST 
Volume 102, Issue 4, Pages (October 1992)
DOI: /chest
Copyright © 1992 The American College of Chest Physicians Terms and Conditions

2. FIGURE 1
Exercise test protocol. Assessments: A = oxygen uptake, minute ventilation, respiratory exchange ratio, heart rate; B = cardiac output; C = systolic blood pressure, perceived exertion.
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Copyright © 1992 The American College of Chest Physicians Terms and Conditions

3. FIGURE 2
Percentage of difference (mean±SD and range) in cardiac output after cardioversion, during steady-state exercise on work loads corresponding to 40 percent and 65 percent of maximal exercise capacity. AFD = recurrent atrial fibrillation in disopyramide-treated patients: SR and SRD = sinus rhythm without or with disopyramide, respectively. Asterisk = p<0.05.
CHEST  , DOI: ( /chest )
Copyright © 1992 The American College of Chest Physicians Terms and Conditions

4. FIGURE 3
Percentage of difference in minute ventilation after cardioversion. Max = maximal tolerated exertion. Other abbreviations and explanations as in Figure 2.
CHEST  , DOI: ( /chest )
Copyright © 1992 The American College of Chest Physicians Terms and Conditions

5. FIGURE 4
Minute ventilation to carbon dioxide elimination ratio ( V ˙ E / V ˙ C O 2 ) during exercise before (squares) and after (circles) cardioversion in patients maintaining sinus rhythm (SR + SRD) or with relapse to atrial fibrillation (AFD). Two asterisks = p<0.01.
CHEST  , DOI: ( /chest )
Copyright © 1992 The American College of Chest Physicians Terms and Conditions