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Case Reports
Journal Article
Isolated Agnathia-Otocephaly Complex Diagnosed Prenatally for Ex-Utero Intrapartum Treatment: A Case Report.
American Journal of Case Reports 2023 May 12
BACKGROUND Agnathia-otocephaly complex (AOC) is a rare congenital malformation due to a first-branch arch disorder and has been considered lethal. However, milder variants of the isolated type of AOC have been reported as nonlethal. The ex-utero intrapartum treatment (EXIT) procedure is basically indicated for a fetus with a high risk of airway obstruction immediately after birth; it is not indicated for all AOC cases but is chosen to treat cases until the airway can be evaluated to achieve a better prognosis. CASE REPORT A 37-year-old woman was referred with reported fetal facial deformity and polyhydramnios at 27 weeks of gestation. Our fetal ultrasound scans showed agnathia, microstomia, and synotia, but not holoprosencephaly. Isolated AOC was diagnosed prenatally. Magnetic resonance imaging and microbubble tests revealed delayed fetal lung maturation, although it was not completely unmatured. With patient agreement, an emergency cesarean section with EXIT was performed because of clinical chorioamnionitis at 35 weeks of gestation. Tracheostomy was attempted for 16 min during EXIT and was completed 4 min after delivery. Despite this, the neonate died 12 h after delivery from severe respiratory failure and a tension pneumothorax caused by a hypoplastic lung. CONCLUSIONS There is controversy surrounding the non-lethality of all isolated AOC cases and the non-contraindication of EXIT procedures. Our case was estimated as the milder variant, and the EXIT procedure was indicated; however, the neonate died of the hypoplastic lung. The evaluation methods of lung maturation are inconsistent, and the indication of the invasive EXIT procedure must be carefully considered.
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