Left heart abnormalities | Right heart abnormalities | Left and/or right heart abnormalities | |
FEV1 | |||
≤50% pred | 23 (30) | 40 (42) | 47 (62) |
>50% pred | 29 (30) | 41 (53) | 53 (55) |
6-min walk distance | |||
≤440 m | 22 (30) | 37 (49) | 45 (61) |
>440 m | 24 (29) | 37 (45) | 47 (57) |
SGRQ | |||
≤33 | 25 (28) | 44 (49) | 54 (60) |
>33 | 27 (33) | 37 (45) | 46 (57) |
Data are presented as n (%). n=173 patients who underwent complete echocardiographic assessment. FEV1: forced expiratory volume in 1 s; % pred: % predicted;&predicted; SGRQ: St Georg′s Respiratory Questionnaire.