Table 3– Univariate analysis of risk factors for major complications after surgery in patients with pulmonary arterial hypertension
OR (95% CI)p-value
Age years0.9 (0.9–1.0)0.52
6MWD m2.2 (1.1–3.7)0.04
NYHA functional class1.04 (0.5–2.0)0.72
mRAP mmHg1.1 (1.0–1.3)0.01
Cardiac index L·min−1·m−21.6 (0.92–4.9)0.36
mPAP mmHg0.97 (0.8–1.1)0.21
PVR dyn·s·cm−50.91 (0.78–1.1)0.22
SvO2 %1.2 (0.9–1.3)0.07
Surgery performed in PH centre0.2 (0.05–1.0)0.06
General versus spinal anaesthesia1.9 (0.3–2.7)0.50
Use of vasopressors1.5 (1.2–2.7)0.03
Emergency procedure2.4 (1.4–3.6)0.01
  • 6MWD: 6-min walking distance; NYHA: New York Heart Association; mRAP: mean right artery pressure; mPAP: mean pulmonary artery pressure; PVR: pulmonary vascular resistance; SvO2: mixed venous oxygen saturation; PH: pulmonary hypertension.