Table 1.

Characteristics and Outcomes of Fetuses.

Characteristic	Case 1	Case 2	Case 3	Case 4	Case 5	Case 6	Case 7
Pregnancy
GA at MRI, wk + d	29 + 6	29 + 4	31 + 1	30 + 5	37 + 2	32 + 3	31 + 6
GA at delivery, wk + d	37 + 5	34 + 2	36 + 6	37 + 3	38 + 2	34 + 1	33 + 4
Tumor
Final diagnosis	Lymphatic malformation	Teratoma	Teratoma	Lymphatic malformation	Lymphatic malformation	Lymphatic Malformation	CHAOS
Lesion/obstruction size on MRI, mm	55 × 35	145 × 110	45 × 36	83 × 42 × 46	80 × 60 × 76	88 × 122 × 87	7 × 5
Delivery a
EXIT	No	Yes	Yes	Yes	Yes	Yes	Yes
Airway patent	No	No	Yes	Yes	Yes	Yes	No
Tracheostomy	No	Yes b	No	No	No	No	Yes
ET tube	No	No	Yes	Yes	Yes	Yes	No
Successful intubation	No	Yes	Yes	Yes	Yes	Yes	Yes
Outcome	Emergency caesarean section, cardiac arrest and neonatal death	Neonatal death due to significant hemorrhage into teratoma. Pulmonary hypoplasia, pneumothorax, and HIE grade 3	Alive	Alive	Alive	Alive	Alive

Abbreviations: CHAOS, congenital high airway obstruction; ET, endotracheal; EXIT, ex utero intrapartum treatment; GA, gestational age; HIE, hypoxic ischemic encephalopathy; MRI, magnetic resonance imaging.

^aDark gray, no; light gray, yes.

^bET tube placed directly into the trachea.