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Obstet Gynecol Sci > Volume 55(2); 2012 > Article
Korean Journal of Obstetrics & Gynecology 2012;55(2):115-118.
DOI: https://doi.org/10.5468/KJOG.2012.55.2.115    Published online February 1, 2012.
A case of congenital high airway obstruction syndrome caused by complete tracheal obstruction with associated anomalies.
Hyun Jin Cho, Yeon Mee Kim, Hee Young Lee, Hye Sung Won
1Department of Obstetrics and Gynecology, Haeundae Paik Hospital, University of Inje College of Medicine, Busan, Korea.
2Department of Pathology, Haeundae Paik Hospital, University of Inje College of Medicine, Busan, Korea.
3Department of Obstetrics and Gynecology, Asan Medical Center, University of Ulsan College of Medicine, Seoul, Korea. hswon@amc.seoul.kr
Congenital high airway obstruction syndrome (CHAOS) is caused when the upper airway is obstructed or severely narrowed. The prenatal ultrasound findings of CHAOS include large echogenic lungs, inverted diaphragms, dilated airways, and fetal ascites and/or hydrops. Recently, exutero intrapartum treatment (EXIT) procedure or fetoscopic tracheostomy are being widely used for the treatment of CHAOS. However, CHAOS with early presentation of hydrops confers ominous sign even with EXIT procedure. We report a case of CHAOS with hydrops and associated anomalies that was confirmed by autopsy.
Key Words: Congenital high airway obstruction syndrome, Prenatal ultrasound, Fetal hydrops, Autopsy

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