Table 1.

Patient Characteristics

	Microcystic	Macrocystic	Hybrid	BPS	All Lesions
Number	25	9	22	2	58
Male sex	20 (80%)	6 (67%)	14 (64%)	1 (50%)	41 (71%)
Birthweight*	3,529 (1,300–4,763)	3,289 (2,175–4,255)	3,260 (1,860–4,678)	3,419 (3,160–3,677)	3,305 (1,300–4,763)
Gestational age†	39	38 wk and 2 d	39	38 wk and 4 d	39
Resection age‡	55 (0–302)	0 (0–66)	51.5 (0–121)	209 (93–325)	53 (0–325)
Need for mechanical ventilation, all	7 of 25 (28%)	7 of 9 (78%)	5 of 22 (23%)	0 of 2 (0%)	19 of 58 (33%)
Need for mechanical ventilation, attributable to lesion§	4 of 25 (16%)	6 of 9 (67%)	5 of 22 (23%)	0 of 2 (0%)	15 of 58 (26%)
Other malformations/syndromes	n = 6 (2 with pulmonary hypoplasia/pulmonary HTN; 1 with aortic coarctation; 1 with multiple VSDs/PDA; 1 with congenital hyperinsulinism due to KCNJ11 mutation; 1 with van den Ende–Gupta syndrome)	n = 4 (3 with pulmonary hypoplasia/pulmonary HTN, of which 1 infant also had rib hypoplasia; 1 with multifocal atrial tachycardia)	n = 1 (apical muscular VSD and PDA)	None	11 of 58 (19%)

Definition of abbreviations: BPS = bronchopulmonary sequestration; HTN = hypertension; PDA = patent ductus arteriosus; RDS = respiratory distress syndrome; VSD = ventricular septal defect.

^*Birthweight is reported in grams: median (range).

^†Gestational age is reported in weeks (or weeks and days where noted): median.

^‡Resection age is reported in days: median (range).

^§Patients with a medical indication other than a lung lesion were excluded from this row (microcystic: 2 with prematurity/RDS; 1 with van den Ende–Gupta syndrome; macrocystic: 1 with prematurity/RDS).