From: Mean platelet volume may predict early clinical outcome after coronary artery bypass grafting
Characteristic | All patients (N=205) | Adverse event | ||
---|---|---|---|---|
No (n=168) | Yes (n=37) | p value | ||
Patient characteristics | ||||
Age (years) | 60.9 ± 10.3 | 60.4 ± 10.6 | 63.4 ± 8.5 | 0.111* |
Male | 168 (82.0%) | 142 (84.5%) | 26 (70.3%) | 0.041† |
HT | 129 (62.9%) | 103 (61.3%) | 26 (70.3%) | 0.307† |
HL | 112 (54.6%) | 94 (56.0%) | 18 (48.6%) | 0.419† |
DM | 73 (35.6%) | 61 (36.3%) | 12 (32.4%) | 0.656† |
COPD | 35 (17.1%) | 28 (16.7%) | 7 (18.9%) | 0.742† |
EF (%) | 55.0 (50.0-60.0) | 55.0 (50.0-60.0) | 50.0 (45.0-55.0) | 0.010‡ |
NYHA functional class | 0.011† | |||
1 | 146 (71.2%) | 126 (75.0%) | 20 (54.1%) | |
2-3 | 59 (28.8%) | 42 (25.0%) | 17 (45.9%) | |
EuroSCORE | 0.93 (0.67-1.51) | 0.84 (0.62-1.41) | 1.31 (0.85-1.86) | 0.001‡ |
Preoperative blood results | ||||
Renal function | ||||
Creatinine (mg/dl) | 0.93 (0.80-1.07) | 0.94 (0.81-1.08) | 0.90 (0.74-0.99) | 0.307‡ |
Estimated GFR (ml/min per 1.73 m2) | 94.4 ± 33.5 | 95.0 ± 34.5 | 92.1 ± 28.7 | 0.634* |
Hematologic paramaters | ||||
Hemoglobin (g/L) | 14.4 ± 1.6 | 14.6 ± 1.5 | 13.4 ± 1.5 | <0.001* |
Hematocrit (%) | 43.5 ± 5.2 | 44.1 ± 5.3 | 40.6 ± 4.2 | <0.001* |
MCV (fL) | 89.1 ± 4.9 | 89.1 ± 5.1 | 89.3 ± 4.1 | 0.848* |
MCH (pg) | 29.7 ± 1.9 | 29.7 ± 1.9 | 29.6 ± 1.8 | 0.722* |
RDW (%) | 13.6 (13.1-14.2) | 13.5 (13.1-14.2) | 13.6 (13.1-14.3) | 0.274‡ |
Platelet count (x109/L) | 268 ± 67 | 270 ± 67 | 262 ± 66 | 0.502* |
MPV (fL) | 8.50 ± 0.78 | 8.44 ± 0.76 | 8.80 ± 0.80 | 0.009* |
Total white cell count (x109/L) | 8.27 ± 1.93 | 8.29 ± 2.00 | 8.17 ± 1.63 | 0.741* |
Neutrophil count (x109/L) | 5.24 ± 1.64 | 5.23 ± 1.67 | 5.25 ± 1.48 | 0.955* |
Lymphocyte count (x109/L) | 2.16 ± 0.69 | 2.19 ± 0.68 | 2.03 ± 0.72 | 0.211* |
Neutrophil-to-lymphocyte ratio | 2.32 (1.86-3.19) | 2.30 (1.81-3.15) | 2.61 (1.95-3.52) | 0.228‡ |
Operative data | ||||
Bypass time (min) | 96.7 ± 36.0 | 93.0 ± 35.1 | 113.8 ± 35.5 | 0.001* |
Cross-clamp time (min) | 64.0 ± 25.5 | 62.9 ± 26.2 | 69.2 ± 21.8 | 0.173* |
Number of bypass grafts | 3.0 (3.0-4.0) | 3.0 (2.0-4.0) | 4.0 (3.0-4.0) | 0.018‡ |
Length of stay in ICU (day) | 1 (1–2) | 1 (1–2) | 3 (1–6) | <0.001‡ |
Length of stay in hospital (day) | 6 (5–7) | 6 (5–7) | 9 (7–18) | <0.001‡ |