Antecedentes: La flujometría doppler fetal se viene usando de forma rutinaria e indiscriminada. Se ha observado muchos fetos con índice de pulsatilidad debajo del percentil 5 en la arteria cerebral media, considerado anormal, con resultados perinatales normales. Existe literatura contradictoria al respecto. Objetivo: Determinar los resultados perinatales en fetos del tercer trimestre con índice de pulsatilidad de la arteria cerebral media debajo del percentil 5, comparado con fetos con doppler cerebral normal. Metodología: Se realizó un estudio, transversal, comparativo analítico, retrospectivo, en el que se incluyeron las gestantes con estudio doppler en el tercer trimestre durante el 1 de enero al 31 de diciembre del 2008. Para el análisis bivariado se usó la prueba de chi cuadrado para comparar variables categóricas y el t- student test para comparar las variables continuas d...

First trimester ultrasound scan (11+0 to 13+6 weeks) is currently one of the most important clinical tools in managing pregnant women and their fetuses. It represents the best example of screening in Obstetrics to assess risk for chromosomal abnormalities and combined with maternal and obstetrical characteristics could be a useful predictor of obstetrical complications. We aim to present comprehensive summary of this important topic in Fetal Medicine for people involved in providing maternal and perinatal care, i.e. obstetricians, midwives and parents.

Twin-to-twin transfusion syndrome is a severe complication of twin monochorial pregnancies manifested with one hypovolemic fetus (donor) and another hypervolemic fetus (receiver). Perinatal mortality is about 90 to 100% if untreated. The accepted treatment is fetoscopy and selective laser photocoagulation of the placental shunts that connect both twins. Currently, this specialized procedure is only performed in our institution. We present the first cases of monochorionic twin pregnancy complicated with twin-to-twin transfusion syndrome that underwent laser photocoagulation and fetoscopy.

We report a series of three cases with prenatal diagnosis of congenital cystic adenomatoid malformation of the lung, macrocystic type, treated in utero with thoraco-amniotic shunting. This highly specialized intervention is feasible in our local setting. The three cases survived. A mini-review of this condition is presented and an algorithm of prenatal management is proposed.