title: Dismembered pyeloplasty followed by metachronous ureteropelvic junction obstruction in the contralateral kidney.
abstract: Hydronephrosis due to congenital ureteropelvic junction obstruction (UPJO) is commonly diagnosed by antenatal sonography. We report the case of an infant who developed new-onset hydronephrosis in the right kidney following uneventful left-sided pyeloplasty for a congenital UPJO. The furosemide minus 15-minute diuretic renogram (F-15 DR) was used to confirm obstruction in the affected renal unit when standard diuretic renography was equivocal. The indications for surgery or observation as well as the role of the F-15 DR are discussed.
authors.affiliation: Children's Urology Group, University of South Florida, Tampa, Florida, USA.
authors.forename: A R
authors.initials: AR
authors.lastname: Shukla
authors.forename: Y L
authors.initials: YL
authors.lastname: Homsy
mesh_terms: D004232:Diuretics; D005665:Furosemide; D006801:Humans; D006869:Hydronephrosis / Q000209:etiology*; D007231:Infant, Newborn; D007674:Kidney Diseases / Q000151:congenital / Q000601:surgery*; D007682:Kidney Pelvis / Q000601:surgery*; D011183:Postoperative Complications; D011866:Radioisotope Renography / Q000379:methods; D013997:Time Factors; D014517:Ureteral Obstruction / Q000151:congenital / Q000601:surgery*
chemical_list: D004232:Diuretics; D005665:Furosemide