title: Congenital high airway obstruction syndrome in the breech presentation managed by ex utero intrapartum treatment procedure after intraoperative external cephalic version.
abstract: Congenital high airway obstruction syndrome (CHAOS) caused by laryngeal atresia was diagnosed by prenatal ultrasound in a male fetus at 26 weeks of gestation. Findings included massive ascites, subcutaneous edema, enlarged hyperechogenic lungs with diaphragmatic inversion, dilated trachea, polyhydramnios, and breech presentation. Those findings of CHAOS spontaneously returned to normal by 33 weeks of gestation. However, the placenta was localized to the anterior uterine wall. In addition, the fetal position had been breech until delivery. At 36 weeks of gestation, a planned ex utero intrapartum treatment (EXIT) procedure was performed following intraoperative external cephalic version (ECV) in which the fetus was approached from the posterior wall of the uterus. Laryngoscopy revealed the predicted laryngeal obstruction, and tracheostomy was placed. Intraoperative ECV may be a useful technique in breech presentation before EXIT procedure.
authors.affiliation: Perinatal Care Unit, Yamaguchi Grand Medical Center, Houhu, Japan. miwaichiro@mail.goo.ne.jp
authors.forename: Ichiro
authors.initials: I
authors.lastname: Miwa
authors.forename: Masakatsu
authors.initials: M
authors.lastname: Sase
authors.forename: Yasuhiko
authors.initials: Y
authors.lastname: Nakamura
authors.forename: Keiko
authors.initials: K
authors.lastname: Hasegawa
authors.forename: Masahiro
authors.initials: M
authors.lastname: Kawasaki
authors.forename: Kazuyuki
authors.initials: K
authors.lastname: Ueda
mesh_terms: D000328:Adult; D000402:Airway Obstruction / Q000151:congenital* / Q000000981:diagnostic imaging / Q000601:surgery*; D001946:Breech Presentation / Q000000981:diagnostic imaging / Q000601:surgery*; D005260:Female; D006801:Humans; D007223:Infant; D007231:Infant, Newborn; D007828:Laryngoscopy; D007830:Larynx / Q000002:abnormalities* / Q000000981:diagnostic imaging / Q000601:surgery; D008297:Male; D006831:Polyhydramnios / Q000000981:diagnostic imaging; D011247:Pregnancy; D016216:Ultrasonography, Prenatal; D014710:Version, Fetal