Document Classification

Section Type: RESULTS

Text: Patients on sildenafil who completed the protocol showed significant changes from baseline, namely, reductions in RV mass (-8. 8 g ; 95 % confidence interval [CI], -2, -16 ; n = 13, p = 0. 015) and plasma brain natriuretic peptide levels (-19. 4 fmol x ml (-1) ; 95 % CI, -5, -34 ; p = 0. 014) and improvements in 6-minute walk distance (114 m ; 95 % CI, 67, 160 ; p = 0. 0002), cardiac index (0. 3 L x min (-1) x m (-2) ; 95 % CI, 0. 1, 0. 4 ; p = 0. 008), and systolic left ventricular eccentricity index (-0. 2 ; 95 % CI, -0. 02, -0. 37 ; p = 0. 031).