Total population; N=48 | Patients with infrasystemic PAH; n=22 | Patients with isosystemic/ suprasystemic PAH; n=26 | Significance of difference between groups (p value) | |
---|---|---|---|---|
LPA diameter (mm) | 16.1±6.1 (5.9–30.5) | 15.5±6.5 (5.9–29.9) | 16.5±5.7 (8.3–30.5) | 0.26 |
DAo diameter (mm) | 12.2±2.9 (6.6–18.1) | 12.3±3.1 (6.6–17.9) | 12.0±2.7 (7.9–16.5) | 0.48 |
Shortest distance LPA-DAo (mm) | 1.7±0.8 (1.0–5.0) | 1.5±0.6 (1.0–3.7) | 1.8±0.9 (1.0–5.0) | 0.01 |
Area of the tightest contact between DAo and LPA (mm2) | 51.8±31.9 (12.5–177.7) | 54.9±33.2 (14.1–146.8) | 47.4±24.0 (12.5–115.4) | 0.05 |
CT scans with identifiable bronchial arteries between DAo and LPA | 8.3% (4/48) | 4.5% (1/22) | 11.5% (3/26) | 0.38 |
Angle of RAO projection (degrees) | 34.7±10.6 (15–68) | 36.3±11.8 (17–68) | 33.5±9.4 (17–51) | 0.09 |
Angle of the curve of catheter tip (degrees) | 85.3±4.4 (75 –92) | 85.4±3.8 (75–91) | 85.5±4.9 (75–92) | 0.88 |
Values are mean±SD (where appropriate) with the range of minimum and maximum values in brackets.
DAo, descending aorta; LPA, left pulmonary artery; PAH, pulmonary arterial hypertension; RAO, right anterior oblique.