Higher Mean Arterial Pressure during Cardiopulmonary Bypass May Not Prevent Acute Kidney Injury in Elderly Patients Undergoing Cardiac Surgery
Table 1
Characteristics of the study patients at baseline.
HPG (n = 42)
LPG (n = 50)
value
95% CI
Age (years)
70.52 ± 4.79
70.44 ± 4.70
0.933
−1.89 to 2.06
BMI (kg/m2)
23.10 ± 3.98
23.16 ± 3.18
0.932
−1.55 to 1.42
Male, n (%)
26 (62%)
27 (54%)
0.364
Hypertension, n (%)
15 (36%)
23 (46%)
0.318
DM, n (%)
3 (7%)
8 (16%)
0.192
COPD, n (%)
3 (7%)
5 (10%)
0.628
Hemoglobin (g/L)
127 ± 16.45
126.28 ± 17.28
0.839
−6.31 to 7.75
Hct (%)
38.42 ± 4.69
38.66 ± 5.08
0.818
−2.28 to 1.80
Preoperative sCr (μmol/L)
83.97 ± 16.30
80.31 ± 15.96
0.282
−3.05 to 10.35
eGFR mL/ (min·1.73 m2)
80.62 ± 16.52
85.04 ± 18.49
0.234
−11.75 to 2.91
Preoperative LVEF (%)
58.98 ± 8.17
60.40 ± 8.28
0.411
−4.85 to 2.00
EuroSCORE II
3.50 ± 1.25
3.64 ± 1.17
0.582
−0.64 to 0.364
Percentages are given as total within group; continuous data are presented as mean ± standard deviation; HPG, high-pressure group; LPG, low-pressure group; CI, confidence interval; BMI, body mass index; DM, diabetes mellitus; COPD, chronic obstructive pulmonary disease; Hct, hematocrit; sCr, serum creatinine; eGFR, estimated glomerular filtration rate; LVEF, left ventricular ejection fraction.
