Table 1. Patient characteristics.

	case 1	case 2	case 3	case 4	case 5	case 6	case 7	case 8
age (month)	9	3	0	2	3	4	7	10
weight (kg)	6.5	3.3	3.8	3.6	4.1	3.3	6.2	6.3
sex	female	male	male	male	female	male	male	male
diagnosis	cerebral infarction	CAVC	TGA	CAVC	DORV	CAVC	Cardio-myopathy	MR
reason for intubation	pneumonia/pulmonary edema	operation	operation	operation	operation	operation	shock	cardiac failure
length of mechanical ventilation (days)	8	6	5	5	17	3	23	6
length of ICU stay (days)	12	19	11	13	20	10	34	10
days from intubation to study enrollment (days)	7	4	4	4	16	3	16	3

CAVC, common atrioventricular canal; TGA, transposition of the great arteries; DORV, double-outlet of right ventricle; MR, mitral regurgitation.