title: Primary obstructed megaureter in neonates. Treatment by temporary uretero-cutaneostomy.
abstract: During the last 10 years we have treated 24 newborn and young infants (27 ureters) in whom the diagnosis of primary obstructed megaureter was established by diuresis-enhanced radionuclide renography and/or by antegrade pressure flow studies (Whitaker test). Temporary uretero-cutaneostomy was performed immediately after diagnosis. After 1 year a second modified Whitaker test showed normal passage of the contrast medium into the bladder in 23 ureters. In only 4 ureters did obstruction persist and uretero-cystoneostomy was performed. Ureterocystoneostomy was also performed on 8 ureters without obstruction but with persistent vesicoureteric reflux, ectopic ureter or diverticula. In 11 patients a temporary uretero-cutaneostomy was closed without corrective surgery at the vesicoureteric junction. Temporary uretero-cutaneostomy is a safe and effective therapy in primary obstructed megaureter in newborns. Spontaneous relief of obstruction appears to be possible in primary obstructed megaureter.
authors.affiliation: Department of Pediatric Nephrology, University Hospital, Essen, Germany.
authors.forename: B
authors.initials: B
authors.lastname: Lettgen
authors.forename: D
authors.initials: D
authors.lastname: Kröpfl
authors.forename: K E
authors.initials: KE
authors.lastname: Bonzel
authors.forename: M
authors.initials: M
authors.lastname: Meyer-Schwickerath
authors.forename: W
authors.initials: W
authors.lastname: Rascher
mesh_terms: D062109:Dermatologic Surgical Procedures; D005260:Female; D006801:Humans; D007223:Infant; D007231:Infant, Newborn; D008297:Male; D011877:Radionuclide Imaging; D014513:Ureter / Q000000981:diagnostic imaging / Q000601:surgery; D014517:Ureteral Obstruction / Q000000981:diagnostic imaging / Q000601:surgery*; D014547:Urinary Diversion / Q000379:methods*