Respiratory failure after scoliosis correction surgery in patients with Prader-Willi syndrome: Two case reports

Table 1 Demographics of two cases

	Case 1		Case 2
Birth age (wk)	NSVD, 35 + 2		NSVD, 41 + 1
Weight at birth (g)	2100		3100
Age of PWS diagnosis	5 mon		2 yr
Sex	Male		Male
Growth hormone therapy	Ongoing for 4 yr		Not applied
Scoliosis surgery	Before OP	Post OP (At respiratory failure)	Before OP	Post OP (At respiratory failure)
Scoliosis Cobb’s angle (°)	66.1	54	82.6	71.8
Height (cm)	134	137	141	143
Weight (kg)	53.5	57	79.5	87
BMI (kg/m2)	29.8	30.4	40.0	42.5
Age (yr)	12	12	13	13

BMI: Body mass index; OP: Scoliosis repair surgery; PWS: Prader-Willi syndrome; NSVD: Normal spontaneous vaginal delivery.