Table 2

Demographic and Surgical Data for the SCD and Control Groups

SCD Group (n = 12)Control Group (n = 125)p Value
Male9 (75%)71 (57%)0.36
Palliative surgery
BT shunt5 (42%)63 (50%)0.76
Mean age (yrs)*5 ± 54 ± 70.10
Tetralogy repair
Surgical era 1950s–1970s7 (58%)79 (63%)0.76
Surgical era 1980s–2000s5 (42%)46 (37%)0.76
Mean age at repair (yrs)20 ± 2113 ± 130.07
Transannular patch7 (58%)67 (54%)1.00
Co-morbidities
Coronary artery disease2 (17%)4 (3%)0.09
Re-operations6 (50%)52 (42%)0.76
Mean number per patient0.620.500.53
Mean age (yrs) at last surgery43 ± 1929 ± 170.15
Surgery type
Resection of aneurysm1 (8%)1 (1%)0.17
Pulmonary valve replacement4 (33%)27 (22%)0.47
Relief of RVOTO0 (0%)22 (18%)0.21
Closure of residual shunts3 (25%)10 (8%)0.11
Mitral valve replacement2 (17%)0 (0%)0.09
Aortic valve replacement0 (0%)3 (2%)1.00
Tricuspid valve surgery2 (17%)7 (6%)0.18
Atrial cryoablation0 (0%)6 (5%)1.00
Ventricular cryoablation0 (0%)1 (1%)1.00
Maze procedure0 (0%)2 (2%)1.00
CABG1 (8%)1 (1%)1.00
Last follow-up
Mean age (yrs)45 ± 1838 ± 140.10
Mean time (yrs) from repair21 ± 925 ± 90.13

BT = Blalock-Taussig; CABG = coronary artery bypass surgery; RVOTO = right ventricular outflow tract obstruction; SCD = sudden cardiac death.

  • * Data available for 68 patients.

  • Data available for 58 patients.