Table 1

Clinical and ECG preprocedural findings, procedural variables and inhospital outcomes following standard AVR

Variablesn=780
Clinical characteristics
 Age (years)77±4
 Male sex350 (45)
 Body mass index (kg/m2)28±5
 Diabetes171 (22)
 Hypertension541 (69)
 Chronic atrial fibrillation/flutter126 (16)
 Previous myocardial infarction99 (13)
 Cerebrovascular disease88 (11)
 Peripheral vascular disease83 (11)
 Chronic obstructive pulmonary disease140 (18)
 Estimated glomerular filtration rate (ml/min/1.73 m2)78±24
 Society of Thoracic Surgeons score (%)3.5±1.5
 Logistic EuroSCORE (%)10.4±8.5
Echocardiographic data
 Left ventricular ejection fraction (%)60±13
 Mean gradient (mm Hg)47±15
 Aortic valve area (cm2)0.65±0.17
 Indexed aortic valve area (cm2/m2)0.37±0.09
 Pulmonary artery systolic pressure (mm Hg)38±13
 Moderate mitral regurgitation31 (4.0)
Baseline ECG conduction abnormalities
 LBBB52 (6.7)
 RBBB57 (7.3)
 LAH50 (6.4)
 IVCD60 (7.7)
 1-AVB70 (8.9)
Procedural variables
 Prosthesis type
  Mechanical24 (3.1)
  Bioprosthetic756 (97)
   Stented690 (88)
   Stentless66 (8.5)
 Cardiopulmonary bypass time (min)88±26
 Aortic cross-clamp time (min)66±20
 Prosthesis size (mm)
  171 (0.1)
  1974 (9.4)
  21228 (29)
  23234 (30)
  25176 (23)
  2760 (7.6)
  297 (0.9)
Inhospital outcomes
 Stroke38 (4.9)
 CK-MB increase >5 times112 (14)
 Need for haemodialysis19 (2.4)
 Sepsis9 (1.2)
 Re-operation for bleeding46 (5.9)
 Intubation >48 h41 (5.3)
 Hospital stay, days (25–75th IQR)8 (6–10)
 30-Day mortality25 (3.2)
  • Values are expressed as n (%), mean±(SD) or median (25–75th IQR), unless otherwise noted.

  • AVR, aortic valve replacement; CK-MB, creatine kinase, myocardial type; EuroSCORE, European system for cardiac operative risk evaluation; IVCD, intraventricular conduction disturbance; LAH, left anterior hemiblock; LBBB, left bundle branch block; 1-AVB, first-degree atrioventricular block; RBBB, right bundle branch block.