title: Doppler echocardiographic diagnosis of intrauterine closure of the ductus arteriosus.
abstract: A case of in utero closure of the ductus arteriosus was detected by Doppler echocardiography at 31 weeks of gestation. It presented as a non-hydropic distressed fetus with ultrasound detection of tricuspid regurgitation. Pulsed Doppler ultrasound showed markedly decreased blood flow through the tricuspid and pulmonary valves and absent blood flow at the ductus arteriosus. These, as well as the resultant increased right-to-left shunting across the foramen ovale, were reaffirmed by colour flow mapping.
authors.affiliation: Department of Obstetrics and Gynecology, Taichung Veterans General Hospital, Taiwan, Republic of China.
authors.forename: R C
authors.initials: RC
authors.lastname: Chao
authors.forename: E S
authors.initials: ES
authors.lastname: Ho
authors.forename: K S
authors.initials: KS
authors.lastname: Hsieh
mesh_terms: D000328:Adult; D001783:Blood Flow Velocity; D002585:Cesarean Section; D004373:Ductus Arteriosus / Q000002:abnormalities* / Q000000981:diagnostic imaging*; D015150:Echocardiography, Doppler; D005260:Female; D005315:Fetal Diseases / Q000000981:diagnostic imaging*; D005317:Fetal Growth Retardation / Q000000981:diagnostic imaging; D006801:Humans; D007231:Infant, Newborn; D007234:Infant, Premature; D008168:Lung / Q000098:blood supply; D008297:Male; D011225:Pre-Eclampsia; D011247:Pregnancy; D011263:Pregnancy Trimester, Third; D014261:Tricuspid Valve / Q000473:pathology; D016216:Ultrasonography, Prenatal