patent ductus arteriosus
noun [ U ] medical specialized uk/ˌpeɪ.tənt ˌdʌk.təs ɑː.tɪə.riˈəʊ.sɪs/ us/ˈpeɪ.t̬ənt ˈdʌk.təs ɑːrˌtɪr.iˈoʊ.səs/
动脉导管未闭
a birth defect of the heart in which a temporary blood vessel that supplies the unborn child does not close at birth
The main sign of patent ductus arteriosus is a mechanical hum from the heart. 动脉导管未闭的主要迹象是心脏部分有机械嗡嗡声。