View clinical trials related to Fetofetal Transfusion.
Filter by:The twin pregnancies monochorionic are specifically explained to two main types of complications: the anomalies of the embryo affecting a symmetry and in particular the median line on one hand and malformative sequences of vascular origin on the other hand. This last category of anomalies (twin-to-twin syndrome, TTTS) develops because of the presence of a division of the foeto-placentary circulation between both twins through the pooling of certain placentary cotyledons. The latter are then vascularized by an arterial and venous foot belonging to both foetuses (anastomoses arteria-venous or veinous-arterial). It results from it an imbalance moderate but very early hemodynamic which is going to return a hypovolume twin (the donor) and its plethoric co-twin (the recipient). These anomalies in utero could not only have consequences during the fetal life, on the born weight and the later development of newborns, but also on the organization and the functioning of a whole series of physiological systems. So these anomalies of the pregnancy could have also consequences which exceed by very far from the perinatal period, by favoring the development of the atheroma, the high blood pressure, the resistance in the insulin, and many other metabolic and endocrine functions were known for their importance in human pathology. For these reasons the investigators suggest estimating the tensional, cardiac and metabolic status of children ex-transfusers and of children ex-transfused in 2 different age classes: between 4 and 8 years then when these children will have between 12 and 16 years. There are also some evaluation clinical and biological of the puberty (only at the age of 12-16) To understand a possible effect of the prenatal status of these children on the endocrinology of the puberty, the measures and the following dosages will be realized: - Test in the GnRH (T0, T30, T60, T90): dosages of LH and FSH (relationship of peaks to determine the puberty evolution), - Dosages of the sexual steroids, the oestradiol for the girl and the testosterone for the boy, - Clinical examination looking for the signs of puberty This if study leans on the big originality of the physiopathological model of TTTS in which the children present the peculiarity to have an identical genetic and postnatal status and a different prenatal environment. The follow-up of these children should allow: - To understand better the postnatal impact anomalies on these children in the course of pregnancy - To anticipate and thus to improve their care in case of appearance of biological or clinical signs
Twins who share a placenta but have two separate sacs of amniotic fluid (monochorionic-diamniotic) are at risk of developing twin-to-twin transfusion syndrome (TTTS). TTTS results from anastomoses in the placenta that lead to unequal sharing of blood, causing abnormal blood flow to the twins. The donor twin may have low fluid levels, poor growth, and anemia. The recipient twin can have high fluid levels, high red blood cell counts, heart failure, and hydrops. Having TTTS, especially if there is demise of one twin or if disease is severe enough to warrant laser photocoagulation of the anastomotic sites, puts the surviving fetuses at risk for brain injury due to hypoxia, ischemia, or reperfusion injuries. Magnetic Resonance Imaging (MRI) is superior to ultrasound at detecting subtle cerebral injuries. An MRI scoring scale has been developed for use in very low birth weight infants that has been shown to correlate with neurodevelopmental outcomes, but it has not been tested in this patient population. Our center's guidelines recommend fetal MRI prior to intervention, at 32 weeks gestational age, and on the infants at term corrected gestational age. Infants who were treated for TTTS in utero are seen in Nursery Follow-up Clinic at 4 months of age, 8 months of age, and for Bayley Scales evaluations at 15-18 months of age and at 2-3 years of age. The purpose of this study is to correlate brain MRI score with neurodevelopmental outcomes in survivors of TTTS that have either required fetal surgical intervention or had demise of their cotwin. The investigators predict that more severe white and gray matter injury as determined by the Woodward/Inder grading scale will be positively associated with worse neurodevelopmental outcomes.
The investigators hypothesize that treatment of twin-twin transfusion syndrome (TTTS) using sequential laser photocoagulation of communicating vessels (SQLPCV) over the predominant method, selective laser photocoagulation of communicating vessels (SLPCV), may provide vascular stability to the donor fetus. The primary objective is to evaluate the perinatal outcome, specifically, donor intrauterine survival of TTTS managed by SQLPCV vs. SLPCV in a prospective, randomized trial.
This is a study to compare two treatments (amnioreduction vs. selective fetoscopic laser photocoagulation [SFLP]) in patients with severe twin to twin transfusion syndrome.