[Prenatal diagnosis and management of isolated bladder exstrophy]

The isolated bladder extrophy is a major congenital malformation which prenatal diagnosis is essential. It is based on the non-visualization of the bladder during the first trimester ultrasound but in most cases, it is confirmed by the morphological ultrasound of the second trimester. For the baby, the prognosis of life quality depends on the accurate identification of the malformation, the foetal sex and the associated pathologies. Thus, a detailed ultrasound evaluation is necessary and requires an operator experienced in the search of malformations. As this abnormality has important aesthetic and functional consequences, a multidisciplinary management is required for a good information of the couple. The continuation of pregnancy is currently possible but the couple should be informed that after surgery, often a major one, more than 75% of children will have a urinary continence by reconstruction or bypass. Furthermore, their ability of reproduction will need to be medically improved.