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Table 1 Preoperative and operative data

From: Surgical strategies protecting against right ventricular dilatation following tetralogy of Fallot repair

Patients’ characteristic Value
Age (months)
 Mean ± SD 13.1 ± 4.8
 Median 11
 Range 8–26
Male 31 (67.4%)
Weight (Kg)
 Mean ± SD 9.5 ± 2.3
 Median 9
 Range 6–16
Associated lesions:
 ASD 4 (8.7%)
 PDA 7 (15.2%)
 PLSVC 1 (2.2%)
McGoon Ratio
 Mean ± SD 1.9 ± 0.14
 Median 1.9
 Range 1.7–2.2
RVOT pressure Gradient (mmHg)
 Mean ± SD 80.9 ± 7.7
 Median 80
 Range 65–97
Prior MBT shunt 8 (17.4%)
Coronary anomalies
 No 40 (86.96%)
 Minor 5 (10.87%)
 Major 1 (2.17%)
Preoperative Rhythm
 Sinus 44 (95.66%)
 Partial HB 1 (2.17%)
 Complete HB 1 (2.17%)
TAP 11 (23.9%)
Cardiopulmonary bypass time (min)
 Mean ± SD 71.2 ± 6.3
 Median 70
 Range 55–94
Ischemic time (min)
 Mean ± SD 42.4 ± 4.9
 Median 42
 Range 35–62
Pulmonary valve morphology
 Unicuspid 1 (2.17%)
 Bicuspid 26 (56.52%)
 Tricuspid 17 (36.96%)
 Indeterminate 2 (4.35%)
Pulmonary valve commissurotomy 40 (86.96%)
TV repair 33 (71.74%)
  1. (Continuous variables are expressed as mean ± SD, median and range) Categorical variables are presented as number and (percent)) ASD Atrial septal defect, PDA Patent ductus arteriosus, PLSVC Persistent left superior vena cava, RVOT Right ventricular outflow tract, MBT Modified Blalock Taussig shunt, HB Heart block, TAP Trans-annular patch