Introduction: Large congenital neck tumors can cause neonatal death due to airway obstruction. The aim of this study was to report outcomes of the first cohort of fetuses with neck masses and suspected airway obstruction managed with fetal laryngoscopy (FL) and fetal endoscopic tracheal intubation (FETI) to secure fetal airways and avoid ex utero intrapartum treatment (EXIT) procedure.
Methods: A prospective observational cohort of consecutive fetuses with neck masses that were candidates for an EXIT procedure due to suspicion of laryngeal and/or tracheal occlusion on ultrasonographic (US) or magnetic resonance imaging (MRI) examination were recruited for FL in a tertiary referral center in Queretaro, Mexico. FETI was performed if the obstruction was confirmed by FL. Maternal and perinatal outcomes were evaluated.
Results: Between January 2012 and March 2023, 35 cases with neck masses were evaluated. Airway obstruction was suspected in 12/35 (34.3%), either by US in 10/35 (28.6%) or by fetal MRI in 2/35 (5.7%). In all cases, FL was successfully performed at the first attempt at a median gestational age (GA) of 36+5 (range, 33+5-39+6) weeks+days, with a median surgical time of 22.5 (12-35) min. In 4 cases, airway patency was confirmed during FL and an EXIT procedure was avoided. In 8/12 cases (66.7%), airway obstruction was confirmed during fetoscopy and FETI was successfully performed at a median GA of 36+3 (33+2-38+5) weeks+days, with a median surgical time of 25.0 (range, 12-45) min. No case required an EXIT procedure. All patients underwent conventional cesarean delivery with no maternal complications and all neonates were admitted to the neonatal intensive care unit with a correctly positioned endotracheal tube (ETT) immediately after delivery. Three neonatal deaths (37.5%) were reported due to postnatal unplanned extubation, failed ETT replacement, and tumoral bleeding.
Conclusion: In fetuses with neck masses and suspected airway obstruction, FL and FETI are feasible and could replace EXIT procedures with good maternal and perinatal outcomes.
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