Table 1.

Demographics and peri- and post-operative characteristics and outcomes of all patients included the study cohort

Variable	(n =168)
Demographics and Pre-operative Characteristics
Age at surgery, days	5.6 ± 2.5
Gender: Male, n (%)	111 (66)
Gestational age, weeks	38.4 ± 1.5
Weight, kilograms	3.2 ± 0.5
Genetic abnormalities: Yes, n (%)	3 (2)
Pre-operative MV: Yes, n (%)	32 (19)
Operative Characteristics
CPB duration, minutes	174 ± 52
ACC, minutes	72 ± 21
Circulatory arrest, minutes	11 ± 17
Shunt type, n (%)
Sano	138 (82)
mBTTS	30 (18)
ECMO in operating room, n (%)	4 (2)
Open Sternum: Yes, n (%)	114 (68)
Post-operative characteristics
Post-operative ECMO, n (%)	20 (12)
Post-operative cardiac arrest, n (%)	28 (17)
VIS
Admit	15 ± 6
POD-1	21 ± 12
POD-2	17 ± 9
POD-3	13 ± 7
Percentage of Cumulative daily fluid overload, (L/kg)*100%
0	2.6 ± 6.6
1	2.0 ± 9.3
2	−2.2 ± 10.7
3	−6.2 ± 11.6
4	−7.8 ± 13.3
Peritoneal drain (yes), n (%)	118 (70)
Haemodialysis, n (%)	7 (4)
AKI
None	99 (59)
Transient	40 (24)
Persistent	29 (17)
Outcomes
Reintubated within 48 hours, n (%)	27 (16)
Duration of MV, hours	118 (84,166)
ICU length of stay, days	17 (12, 26)
Hospital length of stay, days	28 (18, 40)
Mortality, n (%)	28 (17)

Continuous data presented as mean ± standard deviation or median (IQR). ACC = aortic cross clamp; AKI = acute kidney injury; CPB = cardiopulmonary bypass; ECMO = extracorporeal membrane oxygenation; ICU = intensive care unit; Mbtts = modified Blalock-Thomas-Taussig shunt; MV = mechanical ventilation; MV = mechanical ventilation; POD = post-operative day; UOP = urine output; VIS = vasoactive inotrope score.