Table 1.

Clinical features and hemodynamic parameters of patients

Clinical features and hemodynamic parameters	Clinical data
Number	55
Age at diagnosis (years)	49 ± 16
Gender	34 F/ 21 M
mPaP (mmHg)	48 ± 14
sPaP (mmHg)	69 ± 19
Pulmonary vascular resistance (mmHg.l −1 .m −1 )	8.3 ± 3.3
Cardiac index (l.m −1 .m −2 )	2.9 ± 0.7
6MWT (m)	415 ± 146

Values are expressed as mean ± standard deviation; F: female, M: male; mPaP: mean pulmonary pressure; sPaP: systolic pulmonary pressure; 6MWT: 6 minute walking test.