Table 1

Patient and procedure characteristics of all patients and stratified by acute kidney injury

Patient characteristicsAll patients (n=1993)AKI (n=318)No AKI (n=1675)P values
Age82.0±7.482.4±6.981.9±7.50.24
Female1013 (51.1%)157 (49.5%)856 (51.4%)0.55
Male971 (48.9%)160 (50.5%)811 (48.7%)
NYHA class 4346 (18.9%)77 (25.8%)269 (17.6%)0.001
Atrial fibrillation641 (32.2%)126 (39.6%)515 (30.8%)0.002
COPD351 (17.6%)64 (21.1%)287 (17.2%)0.20
Diabetes712 (35.7%)142 (44.8%)570 (34.0%)<0.001
Hypertension1714 (86.0%)275 (86.5%)1439 (85.9%)0.79
Lipids1442 (72.6%)237 (74.5%)1205 (72.2%)0.40
PVD301 (15.1%)51 (16.0%)250 (15.0%)0.63
Stroke or TIA323 (16.2%)55 (17.3%)268 (16.0%)0.57
Prior open heart surgery404 (24.4%)51 (19.8%)353 (25.2%)0.062
STS score5.8±5.07.0±6.35.6±5.4<0.001
EuroSCORE7.2±7.38.8±8.86.8±6.9<0.001
Pre-mean PG44.7±16.643.0±15.745.1±16.80.043
LVEF <40%217 (11.2%)47 (15.3%)170 (10.5%)0.015
BMI27.2±5.628.2±27.527.1±26.80.002
Weight (kg)73.0±16.275.8±17.172.5±15.9<0.001
CRCL50.6±22.744.6±21.451.7±22.8<0.001
Pre-TAVR creatinine (µmol/L)106.7±43.0127.1±53.7102.8±39.5<0.001
Haemoglobin119.4±16.1114.2±15.5120.3±16.1<0.001
Valve size26.5±2.426.5±2.526.4±2.40.59
Conscious sedation790 (47.3%)119 (44.8%)497 (47.8%)0.38
Non-femoral access site290 (14.6%)76 (23.9%)214 (12.8%)<0.001
Valve in valve procedure106 (5.3%)8 (2.5%)98 (5.9%)0.015
Contrast dye (mL)125.3±63.5131.0±73.7124.2±61.30.173
  • AKI, acute kidney injury; BMI, body mass index; COPD, chronic obstructive pulmonary disease; CRCL, creatinine clearance; EuroSCORE, European System for Cardiac Operative Risk Evaluation; LVEF, left ventricle ejection fraction; NYHA, New York Heart Association functional classification; PG, peak gradient; PVD, peripheral vascular disease; STS score, Society of Thoracic Surgeons adult cardiac surgery risk score; TAVR, transcatheter aortic valve replacement; TIA, transient ischaemic attack.