1. Volume 99, Issue 5, Pages 1066-1071 (May 1991)
Echo/Doppler and Hemodynamic Correlates of Vasodilator Responsiveness in Primary Pulmonary Hypertension 
Susan B. Eysmann, M.D., Harold I. Palevsky, M.D., Nathaniel Reichek, M.D., Keith Hackney, Pamela S. Douglas, M.D. 
CHEST 
Volume 99, Issue 5, Pages (May 1991)
DOI: /chest
Copyright © 1991 The American College of Chest Physicians Terms and Conditions

2. FIGURE 1
Relation of peak pulmonic flow velocity to percentage of reduction in PVR (r= −0.47, p = 0.01) for eight responders and 17 nonresponders. Horizontal line at 30 percent reduction in PVR represents cutoff for vasodilator responsiveness.
CHEST  , DOI: ( /chest )
Copyright © 1991 The American College of Chest Physicians Terms and Conditions

3. FIGURE 2
Kaplan-Meier survival curves for response to vasodilator agents for eight responders and 17 nonres ponders. Each x represents a patient alive at follow-up.
CHEST  , DOI: ( /chest )
Copyright © 1991 The American College of Chest Physicians Terms and Conditions

4. FIGURE 3
Relation of mean right atrial (RA) pressure to response to vasodilator agents for eight responders and 17 nonresponders. Horizontal dotted line at 10 mm Hg represents optimal critical value used in the analysis.
CHEST  , DOI: ( /chest )
Copyright © 1991 The American College of Chest Physicians Terms and Conditions