Determination of chorionicity and amnionicity by ultrasound is the most important step in the management of multiple pregnancies. This diagnosis should be done in the first trimester of pregnancy not only because less difficulty but because it constitutes the beginning of various steps in the control of these types of pregnancies. It is highly recommended that professionals dealing with this kind of study have the knowledge to assess correctly and promptly chorionicity and amnionicity in multiple pregnancies.

Determination of the chorionicity and amnionicity by ultrasound is the most important step in the management of the multiple pregnancies. This diagnosis should be done in the first trimestre of the pregnancy, not only because of a less difficult process but also because it constitutes the beginning of several steps to follow in the control of these types of pregnancies. All this makes highly necessary that professionals dealing with this kind of ultrasounds have the right knowledge to assess correctly and promptly the chorionicity and amnionicity in multiple pregnancies.

A pregnant woman with monochorionic twins was referred to our Centre due to discrepancy in size between the twins. She was 17 weeks pregnant when we made the diagnosis of selective IUGR type 2 and we decided to perform a fetoscopic Laser ablation of the placental anastomoses. During the fetoscopy, we identified an arterio-venous anastomosis with bidirectional flux that is completely atypical in these anastomoses, never reported before, thus representing a sign of bad prognosis for the small twin.

Introduction and objectives. Fetal obstructive uropathy can be treated early in pregnancy by intrauterine vesicoamnioticshunting, immediately after being diagnosed by ultrasound, in specific cases with a favorable prognosis in renal function usingfetal urinary beta-2 microglobuline. The main objective of the study was to determine the changes of beta-2 microglobulinein consecutive samples of fetal urine in 48 – 72 hour-intervals in fetuses with obstructive uropathy at 16 weeks of gestation.Methods. We performed a descriptive and longitudinal study, including 15 pregnant women whose fetuses were diagnosedwith obstructive uropathy and without chromosomal abnormalities, performing vesicocentesis for urinary biometry.

Microcystic fetal lung tumors or masses such as the congenital cystic adenomatoid malformation (CCAM) and bronchopulmonary sequestration (SBP) are rare congenital pathologies, diagnosed by ultrasound during prenatal assessment, with a high mortality rate of 95% as a consequence of prenatal complications due to hydrops and postnatal death from pulmonary hypoplasia. Minimally invasive therapies using sclerosing agents are positioned among the low cost and highly effective techniques for such pathologies. Methodology: We conducted a prospective, randomized, blind clinical study in 17 pregnant women with diagnosis of fetal microcystic CCAM or hybrid lesion (CCAM + SBP), who were treated with betamethasone or polidocanol. Alternative therapy was employed in case of failure of the initial procedure. Results: In four (44.4%) of the nine cases treated with betamethasone, the alternative therapy ...

The amniotic band syndrome (ABS) is characterized by accumulation of fibrous tissue bands or strings that adhere to the fetus and may produce compression in different sites. Most cases present multiple congenital anomalies incompatible with life. A small group of fetuses have isolated constrictions of the limb that may cause severe limb dysfunction or limb amputation if not treated during pregnancy. This rare condition occurs in approximately 1:1 200 to 1:15 000 live births. The exact cause of ABS remains uncertain; however, theories of intrinsic, extrinsic and iatrogenic reasons have been proposed. The evolution of the limb affected by ABS is characterized by progression of distal edema due to venous obstruction, and intrauterine amputation of the limb from vascular insufficiency. Fetoscopic release of the amniotic bands through minimally invasive surgery techniques may allow life prese...