Anne-Marie Koop

288 Table 1. Clinical characteristics All patients Pressure overload Volume overload n Median (IQR), n (%) n Median (IQR), n (%) n Median (IQR), n (%) Patient characteristics Age 125 9.6 (5.0-14.2) 56 9.2 (2.8-14.0) 25 8.9 (5.2-14.7) Sex, male 125 66 (53) 56 24 (43) 25 14 (56) BSA 122 1.07 (0.72-1.51) 53 1.03 (0.63-1.46) 25 0.94 (0.74- 1.68) WHO-FC/NYHA 125 56 25 I 94 (75) 31 (55) 23 (92) II 25 (20) 19 (34) 2 (8) III 5 (4) 5 (9) 0 (0) IV 1 (1) 1 (2) 0 (0) Diagnosis 125 56 25 TOF (+/- PA), PS PH ASDI & ASDII Other* 77 (61) 25 (20) 6 (5) 17 (14) 29 (52) 23 (41) 0 (0) 4 (7) 19 (76) 0 (0) 4 (16) 2 (8) Echocardiographic parameters RV function RV function eyeballing 124 55 24 Good 106 (86) 44 (80) 23 (92) Moderate 15 (12) 10 (18) 1 (4) Poor 3 (2) 1 (2) 1 (4) TAPSE, mm 117 16.0 (13.3-19.1) 53 16.0 (13.0-20.0) 23 16.0 (13.0- 19.0) RV remodelling RVH, yes 122 51 (42) 53 38 (72) 25 2 (8) RV dilatation, yes 122 73 (60) 54 29 (54) 25 21 (84) Severity of overload None Mild-moderate Severe 125 16 (13) 57 (46) 52 (42) 56 0 (0) 29 (52) 27 (48) 25 0 (0) 14 (56) 11 (44) BSA: body surface area; WHO-FC: World Health Organization Functional Class; NYHA: New York Heart Association; TOF: Tetralogy of Fallot; PA: pulmonary atresia; PS: pulmonary stenosis; PH: pulmonary hypertension; ASDI: atrial septal defect type I; ASDII: atrial septal defect type II; RV: right ventricular; TAPSE: tricuspid annular plane systolic excursion; RVH: right ventricular hypertrophy. * other diagnoses included RV-PA conduit stenosis with signs of RV overload. † significant difference between no residual overload and pressure overload. ‡ significant difference between combined overload and pressure overload § significant difference between pressure overload and volume overload. || significant difference between no residual overload and combined overload. # significant difference between no residual overload and volume overload ** p-value from Kruskal Wallis or Chi-squared test