The Association of the Pulmonary Artery Pulsatility Index and Right Ventricular Function after Cardiac Surgery
Table 1
Cohort characteristics.
Total N = 959
Post-bypass RV dysfunction
No N = 803
Yes N = 156
value
Age (years)
64.0 [56.0, 71.0]
64.0 [56.0, 71.0]
62.0 [53.8, 70.3]
0.03
Male sex (%)
680 (70.9)
578 (72.0)
102 (65.4)
0.12
Chronic lung disease (%)
210 (21.9)
167 (20.8)
43 (27.6)
0.08
BMI (kg/m2)
28.9 [25.8, 33.0]
28.8 [25.8, 32.7]
29.1 [25.5, 34.5]
0.52
Ejection fraction (%)
55.0 [43.5, 60.0]
55.0 [50.0, 60.0]
40.0 [20.0, 55.0]
<0.01
Bypass time (min)
101 [77, 131]
101 [78, 130]
101 [69, 131]
0.46
Preop serum creatinine (g/dL)
1.00 [0.84, 1.19]
0.98 [0.84, 1.17]
1.10 [0.89, 1.31]
<0.01
Postop serum creatinine (g/dL)
1.14 [0.90, 1.51]
1.10 [0.90, 1.48]
1.33 [1.10, 2.00]
<0.01
IABP use (%)
51 (5.3)
27 (3.4)
24 (15.4)
<0.01
Surgical status (%)
Elective
589 (61.4)
505 (62.9)
84 (53.8)
0.03
Urgent
310 (32.3)
254 (31.6)
56 (35.9)
Emergent
60 (6.3)
44 (5.5)
16 (10.3)
Procedure (%)
CABG
429 (44.7)
383 (47.7)
46 (29.5)
<0.01
Valve
157 (16.4)
139 (17.3)
18 (11.5)
Aortic
130 (13.6)
113 (14.1)
17 (10.9)
CABG & valve
71 (7.4)
58 (7.2)
13 (8.3)
OHT
34 (3.5)
23 (2.9)
11 (7.1)
LVAD
60 (6.3)
22 (2.7)
38 (24.4)
Other
78 (8.1)
65 (8.1)
13 (8.3)
Preop RV dysfunction (%)
134 (14.0)
73 (9.1)
61 (39.1)
<0.01
Vasopressor use (%)
824 (85.9)
682 (84.9)
142 (91.0)
0.06
Inotrope use (%)
856 (89.3)
705 (87.8)
151 (96.8)
<0.01
Vasodilator use (%)
732 (76.3)
635 (79.1)
97 (62.2)
<0.01
Diuretic use (%)
380 (39.6)
274 (34.1)
106 (67.9)
<0.01
PA catheter duration (hours)
20.7 [17.7, 38.8]
20.2 [17.4, 25.8]
43.7 [22.3, 47.6]
<0.01
Continuous data presented as median [interquartile range] and categorical data presented as frequency (percentage of total). RV = right ventricle; BMI = body mass index; IABP = intra-aortic balloon pump; CABG = coronary artery bypass graft; OHT = orthotopic heart transplantation; LVAD = left ventricular assist device; PA = pulmonary artery. Other = pulmonary thrombectomy, cardiac tumor removal, subaortic membrane removal.
