Research Article

Comparison of Mortality Risk Models in Patients with Postcardiac Arrest Cardiogenic Shock and Percutaneous Mechanical Circulatory Support

Table 2

Procedural characteristics of the overall cohort.

All patients (n = 65)Survivors (n = 29)Nonsurvivors (n = 36) valueImpella CP (N = 32)Survivors (N = 14)Nonsurvivors (N = 18) value

Duration of Impella support (hours)71 [14–127.5]118.5 [69.25–144]31 [6.5–79.5]0.000378.77 ± 52.53105 ± 44.4448 [12–88.5]0.04
Door to balloon (min)85.21 ± 39.4786.63 ± 40.2483.90 ± 39.40.873 [69–102]73 [65–79]73 [69–124]0.37
Door to Impella support (min)105.5 ± 53.4887 ± 42.78120.9 ± 57.180.0272.5 [57.5–105]62.5 [43–80]102.5 [61–150.3]0.03
Time from ROSC to hospital admission (min)75.98 ± 3674.58 ± 37.6977.06 ± 35.230.856.83 ± 34.5457.44 ± 24.9056.38 ± 41.130.93
Number of stents used2 [1–3]1.5 [1–3]2 [1–3]0.993 [1–3.75]3 [1–4]2 [1–3]0.35

Culprit vessel, n (%)
Left main3 (4.6)1 (3.4)2 (5.6)NS for all comparisons2 (6.3)2 (14.3)0 (0)NS for all comparisons
LAD35 (53.8)17 (58.6)18 (50)16 (50)7 (50)9 (50)
LCx13 (20)7 (24.1)6 (16.7)5 (15.6)2 (14.3)3 (16.7)
RCA12 (18.5)4 (13.9)8 (22.2)6 (18.8)3 (21.4)3 (16.7)
Bypass graft2 (3.1)0 (0)2 (5.5)3 (9.3)0 (0)3 (16.7)

Number of vessels diseased
115 (23.1)9 (31)6 (16.7)NS for all comparisons5 (15.6)2 (14.3)3 (16.7)NS for all comparisons
220 (30.8)8 (27.6)12 (33.3)11 (34.4)4 (28.6)7 (38.9)
330 (46.2)12 (41.4)18 (50)16 (50)8 (57.1)8 (44.4)

Multivessel intervention14 (21.5)8 (27.6)6 (16.7)0.379 (28.1)4 (28.6)5 (27.8)0.45
Successful PCI63 (96.9)28 (96.5)35 (97.2)132 (100)14 (100)18 (100)1

Use of GP IIb/IIIa receptor inhibitors
Tirofiban9 (13.8)7 (24.1)2 (5.5)NS for all comparisons6 (18.8)4 (28.6)2 (11.1)NS for all comparisons
Abciximab6 (9.2)1 (3.4)5 (13.9)3 (9.4)3 (21.4)0 (0)

Duration of intervention (min)119 ± 47.01112.2 ± 57.09124.5 ± 37.070.33125.3 ± 50.95128.0 ± 68.05122.9 ± 31.510.79
Contrast agent (ml)289.4 ± 122.4308.3 ± 143.7273.8 ± 101.60.31347 ± 150375.7 ± 173.9321.9 ± 125.90.34

LAD: left anterior descending artery, LCx: left circumflex artery, RCA: right coronary artery, ROSC: return of spontaneous circulation, PCI: percutaneous coronary intervention; GP: glycoprotein. Numbers are presented as mean (± standard deviation), median (interquartile range, IQR 25th–75th percentile) or frequency (percentile). Only drug-eluting stents were used. >50% stenosis in the nonculprit vessel.