title: [Primary megaureter].
abstract: A primary megaureter is an anomaly with a prevesical or overall dilated ureter of more than 6 mm in diameter. It is important to distinguish between cases of primary non-refluxing and primary obstructive-refluxing megaureters, as the treatment of both is completely different. The basic diagnostic work-up includes ultrasonography and voiding cystourethrography. Diuretic renography is used to detect split renal function and the degree of upper urinary tract obstruction. In most cases of primary non-refluxing megaureter surgical treatment is unnecessary due to the high remission rate, whereas obstructive refluxing megaureters commonly only need to be corrected. Antibiotic prophylaxis may be indicated in infants with a primary obstructive megaureter during the first 6 months of life due to a higher risk of complications due to pyelonephritis especially in this age group.
authors: Klinik für Urologie und Kinderurologie, St.-Antonius-Hospital Eschweiler, Deutschland. Petra.Anheuser@sah-eschweiler.de
authors: P
authors: P
authors: Anheuser
authors: J
authors: J
authors: Kranz
authors: J
authors: J
authors: Steffens
authors: R
authors: R
authors: Beetz
mesh_terms: D000900:Anti-Bacterial Agents / Q000627:therapeutic use*; D003559:Cystostomy / Q000379:methods*; D005260:Female; D006801:Humans; D007223:Infant; D007231:Infant, Newborn; D010535:Laparoscopy / Q000379:methods*; D008297:Male; D014513:Ureter / Q000002:abnormalities* / Q000601:surgery*; D014517:Ureteral Obstruction / Q000175:diagnosis* / Q000628:therapy*
chemical_list: D000900:Anti-Bacterial Agents