The protocol of Enhanced Recovery After Cardiac Surgery (ERACS) in congenital heart disease: a stepped wedge cluster randomized trial

Table 1 Primary outcome

Complication	Content	Definition
MACCEs	all-cause death	death for any reason
	LCOS	VIS score above 20 points
	postoperative mechanical circulatory support	ECMO, VAD, and so on
PPCs	moderate to severe atelectasis	more than 2 lobes of atelectasis diagnosed by computed tomography (CT)
PPCs	lung injury	oxygen index (PaO₂/FiO₂) less than 100
AKI	moderate to severe AKI	KDIGO stage 2 to 3

ISSN: 1471-2431