Fig. 3
Effect of PDE5i on exercise capacity and cardiac performance. Forest plot of the pooled weighted mean differences of (a) peak VO2 (mL/min/kg), (b) ventilatory efficiency (VE/VCO2 slope), (c) 6MWD (meters), (d) LVEF (%), and (e) Mitral annular E/e’ ratio. Abbreviations: 6MWD, 6-min walking distance; LVEF, left ventricular ejection fraction; other abbreviations as in Fig. 2