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18 lis 2015 · Ultrasound assessment of fetal biometry, anatomy, Doppler velocimetry and amniotic fluid volume is used to identify and monitor twin pregnancies at risk of adverse outcomes such as twin-to-twin transfusion syndrome (TTTS) and fetal growth restriction (FGR).
Vanishing twin syndrome (VTS) is a miscarriage that causes a pregnancy involving twins to become a pregnancy involving one embryo. It occurs when one of the embryos detected during an ultrasound stops developing. VTS can’t be treated or prevented.
25 lip 2023 · Since ultrasonography and transvaginal sonography in early pregnancy, vanishing twin syndrome is more frequently diagnosed. Vanishing twin syndrome is evaluated to happen in 36% of twin pregnancies and in half of the pregnancies that begins with at least three or more gestational sacs.
The image shows the vanishing twin face down with the spinal cord running from the skull base to the left of the image. The skull is resorbed and the residual skull base is visible with the spinal cord. The appearance of this fetus is unchanged since 22 weeks gestation. The second fetus is normal.
Ultrasound assessment of fetal biometry, anatomy, Doppler velocimetry and amniotic fluid volume is used to identify and monitor twin pregnancies at risk of adverse outcomes such as twin-to-twin transfusion syndrome (TTTS) and fetal growth restriction (FGR).
1 lis 2022 · Vanishing twin syndrome (VTS) is a common phenomenon among multiple pregnancies, occuring in 15–35% of twin pregnancies. Risk factors for VTS include an increased number of embryos transferred and gestational sacs and advanced maternal age.
22 sie 2018 · Since the advent of fetoscopic laser coagulation, intervention can ameliorate the dismal prognosis in MC pregnancies affected by TTTS. The RCOG and other major national bodies recommend commencing screening for TTTS in MC pregnancies from 16 weeks. Staging of TTTS is according to the Quintero classification (Table 1).
