Congenital high airways obstruction syndrome – first and second trimester diagnosis
نویسندگان
چکیده
Congenital High Airways Obstruction Syndrome (CHAOS) is a rare condition associated with high fetal or neonatal mortality. Prenatal diagnosis in the second trimester is made by the typical ultrasound features of large echogenic lungs, a flattened or inverted diaphragm, and fetal ascites or hydrops. We present two cases diagnosed at our institution; one in the second trimester, and a first trimester diagnosis. To the best of our knowledge, first trimester diagnosis of CHAOS has not been previously reported.
منابع مشابه
I-40: Ultrasound in Multiple Pregnancy
Ultrasound has revolutioned the care of women carring twins. First trimester evaluation is the best time to determine chorioniocity and amnioniocity in multiple gestations. First trimester diagnosis is based on the number of gestational sacs, amnions and yolk sacs. Growth rate in multiple multiple gestations during the fist and early second trimesters parallels the growth rate of singleton preg...
متن کاملTracheal Agenesis: A Challenging Prenatal Diagnosis—Contribution of Fetal MRI
Tracheal agenesis is a rare congenital anomaly. The prevalence is less than 1 : 50 000 with a male to female ratio of 2 : 1. This anomaly may be isolated but, in 93% of cases, it is part of polymalformative syndrome. The most evocative diagnosis situation is the ultrasonographic congenital high airway obstruction syndrome. Dilated airways, enlarged lungs with flattened diaphragm, fetal ascites ...
متن کاملCongenital High Airway Obstruction Syndrome (CHAOS)–A Rare Fetal Malformation- Diagnosis on Antenatal Ultrasonography
Congenital high airway obstruction syndrome (CHAOS) is the obstruction of the fetal upper airways, which may be partial or complete. It is important to diagnose it antenatally as it is uniformly lethal and leads to stillbirth or death shortly after delivery. Antenatal diagnosis is made by identifying echogenic and enlarged lungs, dilated bronchi, inverted /flattened diaphragm and ascites on ult...
متن کاملEvaluation of the relationship between the back of the neck and the incidence of Turner syndrome in the first trimester of pregnancy
Abstract Background and Aim: Children with various anomalies are economically, emotionally charged for the family and society. The purpose of this study was to evaluate the value of Nuchal translucency (NT) in the diagnosis of Turner Syndrome in the first trimester of pregnancy. Materials and Methods: This prospective study was performed on 1522 pregnant women with gestational age of 11 to 13 w...
متن کاملCHAOS: Prenatal imaging findings with post mortem contrast radiographic correlation.
Congenital high airway obstruction syndrome is a rare fetal anomaly with characteristic constellation of prenatal findings on ultrasound and MRI. The typical triad of imaging features are enlarged and echogenic lungs, flattening or inversion of diaphragm and fetal hydrops. Early prenatal recognition of congenital high airway obstruction syndrome by ultrasound and/or MRI is mandatory for the app...
متن کامل