Clinical Study
Pulmonary Hypertension in Portugal: First Data from a Nationwide Registry
Table 3
Hemodynamic characteristics stratified by NYHA class of pulmonary arterial hypertension incident patients.
| | () | NYHA I/II | NYHA III | NYHA IV | value |
| | Six-minute walk test distance (m) | 436 ± 147 | 356 ± 106 | 236 ± 128 | 0.094 | | Female gender | 67.8% | 71.4% | 37.5% | 0.229 | | Right atrial pressure (mmHg) | 8 ± 6 | 8 ± 6 | 7 ± 7 | 0.854 | | Mean pulmonary artery pressure (mmHg) | 54 ± 26 | 49 ± 11 | 45 ± 13 | 0.492 | | Pulmonary capillary wedge pressure (mmHg) | 9 ± 3 | 10 ± 4 | 7 ± 3 | 0.092 | | Cardiac output (L·min−1) | 5.4 ± 0.9 | 4.6 ± 2.1 | 3.2 ± 1.6 | 0.097 | | Pulmonary vascular resistance (Wood units) | 9.1 ± 4.6 | 10.6 ± 5.6 | 15.3 ± 6.1 | 0.123 |
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