Evolution of arterial blood gases and haemodynamic variables before and during an episode of peripheral oedema in COPD patients
| RVEDP (mm Hg) | PAP (mm Hg) | Q (l/min/m2) | Pao2 (mmHg) | Paco2 (mm Hg) | ||||||
|---|---|---|---|---|---|---|---|---|---|---|
| T1 | T2 | T1 | T2 | T1 | T2 | T1 | T2 | T1 | T2 | |
| Values presented as mean (SD). | ||||||||||
| *Difference between T1 and T2 significant, p < 0.001. | ||||||||||
| Group 1, patients with haemodynamic signs of right heart failure (elevated RVEDP); Group 2, patients without haemodynamic signs of right heart failure. | ||||||||||
| PAP, pulmonary artery mean pressure. Q, cardiac output; RVEDP, right ventricular end diastolic pressure; T1, stable state of the disease; T2, episode of oedema. Adapted from Weitzenblum et al.13 | ||||||||||
| Group 1 (n = 9) | 7.5 (3.9) | 13.4 (1.2* | 27 (5) | 40 (6)* | 3.23 (0.82) | 3.19 (1.07) | 63 (4) | 49 (7)* | 46 (7) | 59 (14)* |
| Group 2 (n = 7) | 5.5 (2.4) | 5.1 (1.5) | 20 (6) | 21 (5) | 3.63 (0.36) | 3.29 (1.32) | 66 (7) | 59 (7) | 42 (6) | 45 (6) |