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Local pulmonary artery pressure analysis.
| Variables (n = 77) | Pre-BPA | Post-BPA | p value |
|---|---|---|---|
| Pp, mm Hg | 26.5 ± 7.5 | 25.7 ± 7.5 | 0.008 |
| Pd, mm Hg | 11.3 ± 7.2 | 19.9 ± 7.9 | < 0.01 |
| Pressure ratio | 0.44 ± 0.25 | 0.76 ± 0.19 | < 0.01 |
Values are mean ± SD. BPA, balloon pulmonary angioplasty; Pd, mean pulmonary arterial pressure distal to the stenosis measured by the pressure wire sensor; Pp, mean pulmonary arterial pressure proximal to the stenosis measured by the guiding catheter.
