Skip to main content

Table 1 Baseline demographic and pre-operative characteristics stratified by post-operative CSA-AKI.

From: Difference between pre-operative and cardiopulmonary bypass mean arterial pressure is independently associated with early cardiac surgery-associated acute kidney injury

Characteristic No AKI (n = 92) AKI (n = 65) p-value
Age (years) (mean[± SD]) 64.7 ± 15.8 67.5 ± 13 0.33
Male Sex (%) 64 (69.6) 46 (70.8) 0.87
BMI (kg/m2) (mean[± SD]) 26.3 ± 4.1 31.5 ± 7.1 < 0.0001
CAD (%) 42 (45.7) 38 (58.5) 0.11
Angina (%) 8 (8.7) 5 (7.7) 0.83
Previous MI 35 (38) 31 (47.7) 0.23
Previous Revascularization (%) 9 (9.8) 4 (6.2) 0.42
Valve disease (%) 52 (56.5) 27 (41.5) 0.06
HTN (%) 51 (55.4) 44 (67.7) 0.12
DM - Insulin-Dependent (%) 8 (8.7) 14 (21.5) 0.02
DM - Non Insulin Dependent (%) 23 (25) 24 (36.9) 0.12
Dyslipidemia (%) 57 (62) 48 (73) 0.12
PVD (%) 9 (9.8) 11 (16.9) 0.19
CVD (%) 9 (9.8) 5 (7.7) 0.65
Creatinine (μmol/L) (mean[± SD]) 102.1 ± 29.3 100.3 ± 24.1 0.98
Chronic Kidney Disease (%) 12 (13) 9 (13.8) 0.88
Pre-op SBP (mm Hg) (mean [± SD]) 123.6 ± 21.1 129.5 ± 20.9 0.07
Pre-op DBP (mm Hg) (mean [± SD]) 66.5 ± 13.3 67.4 ± 13.3 0.66
Pre-op MAP (mm Hg) (mean [± SD]) 85.5 ± 13.2 88.1 ± 13.2 0.22
EF (%)(mean [± SD]) 48.4 ± 13.2 47.5 ± 13.6 0.55
ASA (%) 76 (82.6) 54 (83.1) 0.90
Clopidogrel (%) 12 (13.0) 9 (13.8) 0.88
Beta-Blocker (%) 62 (67.5) 45 (69.2) 0.81
CCB (%) 17 (18.5) 11 (16.9) 0.08
ACE inhibitor (%) 56 (60.9) 31 (47.7) 0.10
ARB (%) 6 (6.5) 3 (4.6) 0.62
Statin (%) 60 (65.2) 46 (70.3) 0.46
Loop Diuretic (%) 34 (37) 28 (43.1) 0.44
Thiazide (%) 35 (38) 31 (47.7) 0.23
Spironolactone (%) 2 (2.2) 4 (6.2) 0.23
  1. Abbreviations: DM = diabetes mellitus; BMI = body mass index; AKI = acute kidney injury; CAD = Coronary artery disease, HTN = Hypertension, PVD = peripheral vascular disease, CVD = cerebro-vascular disease, EF = ejection fraction, ASA = acetylsalicylic acid, CCB = Calcium channel blocker, ACE = Angiotensin converting enzyme, ARB = Angiotensin receptor blocker