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Table 1 Clinical characteristics of patients' groups

From: Outcomes of bidirectional Glenn surgery done without prior cardiac catheterization

  Non-catheterization group (n = 25) Catheterization group (n = 68) P value
Age, months 7 (3–12) 10.5 (5–23.5) 0.060
Weight, Kg 6 (4.8–8.7) 7.7 (6–9.9) 0.085
Follow-up period, months 18 (1.5–40) 32 (13–57) 0.025
Male/female, n (%) 15 (60)/10 (40) 41 (60.3)/27 (39.7) 0.980
Oxygen saturation, % 70 (55–75) 72 (68–77) 0.077
Diagnosis, n (%) 0.126
 HLHS/Variant 2 (8) 12 (17.6)  
 Tricuspid atresia 9 (36) 10 (14.7)  
 DILV 1 (4) 10 (14.7)  
 Unbalanced AVSD 1 (4) 13 (19.1)  
 DORV, non-committed VSD 6 (24) 11 (16.2)  
 PA/IVS 2 (8) 4 (5.9)  
 Others 4 (16) 8 (11.8)  
Dominant ventricle 0.462
 RV dominance 4 (16) 17 (25)  
 LV dominance 11 (44) 32 (47)  
 Biventricular/indeterminate 10 (40) 19 (28)  
Prior intervention, n (%) 0.002
 No prior intervention 21 (84) 21 (31)  
 PDA stent 3 (12) 22 (32.4)  
 Norwood 1 (4) 16 (32.5)  
 MBTTS 0 3 (4.4)  
 RVOT stent 0 1 (1.5)  
 Pulmonary artery banding 0 5 (7.4)  
  1. HLHS hypoplastic left heart syndrome, DILV Double inlet left ventricle, AVSD atrioventricular septal defect, DORV Double outlet right ventricle, VSD ventricular septal defect, PA/IVS pulmonary atresia with intact ventricular septum, PDA patent ductus arteriosus, MBTTS Modified Blalock–Taussig–Thomas shunt., RVOT right ventricle outflow tract