Abstract：Objective: To investigate the prenatal ultrasonic manifestation and diagnosis of congenital high airway obstruction syndrome(CHAOS). Methods: Five cases of CHAOS were diagnosed by prenatal ultrasonography. The prenatal ultrasonic manifestations and key points for diagnosis of CHAOS were analysed and concluded. Results: Three cases were comfirmed by autopsy, one was comfirmed by local exploration after termination of pregnancy, and one was lost during follow up. The characteristic prenatal ultrasonic manifestations of CHAOS were hyper-echogenic and symmetrical enlarged lung fields, flattened or inverted diaphragm and dilated trachea, as well as small and compressed heart. Conclusions: The prenatal ultrasonic manifestations of CHAOS were characteristic. CHAOS can be prenatally diagnosed.
庞东静，胡 波，徐志花. 胎儿先天性高位呼吸道梗阻（喉/气管闭锁）的产前超声诊断[J]. 中国临床医学影像杂志, 2016, 27(1): 48-50.
PANG Dong-jing, HU Bo, XU Zhi-hua. Prenatal diagnosis of congenital high airway obstruction syndrome by ultrasound. JOURNAL OF CHINA MEDICAL IMAGING, 2016, 27(1): 48-50.
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