Research Article

The Association of the Pulmonary Artery Pulsatility Index and Right Ventricular Function after Cardiac Surgery

Table 2

Multivariable linear regression analysis.

% ΔPAPi (95% C.I.) (unadj) (adj)

(Intercept)157.2 (66.7–296.8)<0.01<0.01
Age (years)0.7 (0.5–0.9)<0.01<0.01
Lung disease7.7 (2.4–13.2)<0.010.07
BMI (kg/m2)0.4 (0.1–0.8)0.020.30
Preop serum creatinine (g/dL)11 (4.8–17.6)<0.010.01
Surgical procedure
 CABG (reference)N/AN/AN/A
 Valvular9.9 (3.5–16.7)<0.010.04
 CABG and valve11.1 (2–20.9)0.020.26
Post-bypass RV dysfunction9.5 (3–16.3)<0.010.07
Cardiac index (L/m2)5.9 (0.4–11.8)0.040.51
Central venous pressure (mmHg)−9.3 (−9.9–−8.6)<0.01<0.01
Inotrope use12.9 (0.8–26.5)0.040.51
Diuretic use6 (1–11.2)0.020.30

Linear regression table performed ln(PAPi) as the dependent variable. Beta coefficient for each predictor was exponentiated to geometric mean difference (odds ratio) per unit change in predictor. Geometric mean adjusted to reflect percent change in PAPi per unit change in covariate. Adjusted values are based on Bonferroni–Holm correction.