title: [Diagnostic approach to newborns with prenatal diagnosis of hydronephrosis].
abstract: Prenatal ultrasound examination has radically changed physician's attitude toward hydronephrosis. Fetal hydronephrosis must be searched out and looked at with a wider vision than it was done in the past. A mechanical obstruction must be suspected indeed, but often we have to face a functional dilatation, caused by immaturity, which can clear up in uterus or which will simply require a careful follow-up during the post natal period. Vesicoureteral reflux may count for 10 to 33% of urinary tract dilatations. There are no pathological limit values clearly stated in literature: a pyelectasis can only be the expression of a normal anatomical variability, without features of disease. In creating a diagnostic protocol for the newborn with prenatal diagnosis of hydronephrosis, all these possibilities must be accounted for the risk of focusing on mechanical obstruction is to overestimate and over-treat children that will never obtain any benefit from a surgical procedure.
authors.affiliation: UO di Chirurgia Pediatrica, Ospedale Infantile Burlo Garofolo, IRCCS Trieste.
authors.forename: L
authors.initials: L
authors.lastname: Paduano
mesh_terms: D000465:Algorithms; D005260:Female; D006801:Humans; D006869:Hydronephrosis / Q000000981:diagnostic imaging* / Q000209:etiology; D007231:Infant, Newborn; D011247:Pregnancy; D016216:Ultrasonography, Prenatal; D014718:Vesico-Ureteral Reflux / Q000150:complications / Q000000981:diagnostic imaging
vernacular_title: Approccio diagnostico al neonato con diagnosi prenatale di idronefrosi.