Table 2

Perioperative characteristics

CharacteristicPatient cohort (n=1775)
Data available n (%)*No. (%) or mean±SD
Type of conduit implanted1770 (99.7)
 Allograft1645 (93)
 Bioprosthesis120 (6.8)
 Bovine vein5 (0.28)
Conduit diameter (mm)1700 (96)26±2.15
Allograft properties (n=1645)
 Female gender donor allograft1301 (79.0)440 (34)
 Age donor allograft1275 (77.5)45.9±12.2
 Presence of sclerosis or fibrosis donor allograft1645 (100)338 (20.5)
 Presence of fenestrations donor allograft1645 (100)298 (18.1)
 Cryopreserved donor allograft1645 (100)1411 (85.8)
 Antibiotic treatment of donor allograft1645 (100)216 (13.1)
Donor allograft length†1583 (96.2)
 Short779 (47.4)
 Long804 (48.9)
Type of allograft implanted1624 (98.7)
 Pulmonary allograft1612 (98.0)
 Aortic allograft12 (0.7)
Procedure
 Perfusion time1583 (89)191±45.7
 Cross clamp time1595 (90)151±35.2
 Circulatory arrest82 (100)17.5±8.83
Concomitant procedures
 CABG1775 (100)100 (5.6)
 Mitral valve surgery1775 (100)52 (2.9)
 Tricuspid valve surgery1775 (100)3 (0.17)
 Ascending aorta and/or arch reconstruction1775 (100)601 (34)
 Specific surgical adjustments of the allograft‡1775 (100)215 (12)
  • *Number of patients from whom data are available.

  • †Distance between pulmonary artery bifurcation resection line and sinutubular junction of the pulmonary valve ≤20 mm (short) or >20 mm (long).

  • ‡Resection of the allograft's subvalvular muscle with or without replacement with a stripe of pericardium, GoreTex membrane, or Dacron prosthesis.

  • CABG, coronary artery bypass grafting.