title: Doppler sonographic evaluation of arteriovenous shunt flow in a fetus with dural sinus malformation.
abstract: Dural sinus malformation (DSM) is a rare congenital malformation characterized by a dilated dural sinus pouch. We present a case of prenatally diagnosed DSM and propose a parameter to predict poor fetal outcome. Detailed ultrasonography at 26 weeks of our patient showed an intracranial cyst in the left posterior fossa. Color Doppler study indicated an arteriovenous shunt within the cyst with increased blood flow velocity. Based on these findings, fetal DSM with arteriovenous shunt was diagnosed. Because of fetal hydrops with high-output cardiac failure and maternal pregnancy-induced hypertension, labor was induced at 32 weeks and resulted in stillbirth. In conclusion, based on the present case, we can deduce that color Doppler study is useful for prenatal diagnosis of DSM with arteriovenous shunt and that a high-flow velocity to the cystic lesion is a possible predictor of hydropic change in such fetuses.
authors.affiliation: Department of Obstetrics and Gynecology, Kyushu University Hospital, Fukuoka, Japan.
authors.forename: Yuka
authors.initials: Y
authors.lastname: Sato
authors.forename: Yasuyuki
authors.initials: Y
authors.lastname: Fujita
authors.forename: Ai
authors.initials: A
authors.lastname: Anami
authors.forename: Yasuo
authors.initials: Y
authors.lastname: Yumoto
authors.forename: Kotaro
authors.initials: K
authors.lastname: Fukushima
authors.forename: Norio
authors.initials: N
authors.lastname: Wake
mesh_terms: D000328:Adult; D001165:Arteriovenous Malformations / Q000000981:diagnostic imaging* / Q000196:embryology; D002560:Cerebrovascular Circulation; D003937:Diagnosis, Differential; D004388:Dura Mater / Q000098:blood supply* / Q000000981:diagnostic imaging / Q000196:embryology; D005260:Female; D006333:Heart Failure / Q000150:complications / Q000196:embryology; D006801:Humans; D015160:Hydrops Fetalis / Q000209:etiology; D046110:Hypertension, Pregnancy-Induced / Q000503:physiopathology; D007751:Labor, Induced; D011247:Pregnancy; D011262:Pregnancy Trimester, Second; D050497:Stillbirth; D018615:Ultrasonography, Doppler, Color; D016216:Ultrasonography, Prenatal; D055815:Young Adult