Prenatal ultrasonographic diagnosis of fetal absent pulmonary valve syndrome / 中华医学超声杂志（电子版）

ABSTRACT

ObjectiveTo summarize the value of prenatal ultrasonography in the diagnosis of fetal absent pulmonary valve syndrome (APVS).MethodsBetween January 2010 and January 2014, ifve cases with fetal APVS diagnosed by prenatal ultrasound and conifrmed by autopsy in West China Second Hospital of Sichuan University were reviewed. Four conventional views of fetal echocardiography were used to diagnose APVS, including two-dimentional images, color Doppler lfow imaging (CDFI) and pulsed Doppler lfow spectrum.ResultsTypical signs of fetal APVS in 3 of 5 cases were found no pulmonary valve was found in the main pulmonary artery, and pulmonary annulus was relatively smaller compared with a tumor-like expansion in pulmonary trunk; “to and fro” sign in the pulmonary trunk were observed steadily by CDFI and “to and fro” spectrum were detected by pulsed Doppler. Another 2 of 5 cases of fetal APVS have no pulmonary expansion, but “to and fro” sign could be detected by color and spectral Doppler, including 1 case with tricuspid atresia and 1 case with Ebstein’s anomaly.ConclusionsPrenatal ultrasonography has important diagnostic value for Fetal APVS. Fetal APVS on prenatal ultrasound has many characteristics and is easy to diagnose. Color and spectral doppler can detect and diagnose fetal APVS effectively.