title: Incidence of renal artery stenosis in pediatric en bloc and adult single kidney transplants.
abstract: BACKGROUND
  The incidence, time of onset, and outcome of transplant renal artery stenosis (TRAS) in pediatric en bloc (PT) and adult single-kidney (AT) transplants were reviewed.
  
  
  METHODS
  Forty-three cases (7 PT and 36 AT) of suspected TRAS were selected out of 367 functioning grafts (35 of them PT). Diagnosis was performed by digital subtraction arteriography. Percutaneous transluminal angioplasty (PTA) was performed when needed.
  
  
  RESULTS
  Seven (20%) PT and 24 (7.1%) AT presented TRAS. Time of onset was 7+/-1 months in PT and 18+/-17 months in AT (P<0.05). PTA was performed in all cases of TRAS in PT and in 19 AT. One PT and 7 AT had re-stenosis. There was no significant difference in renal function after treatment. Control of blood pressure improved in both groups.
  
  
  CONCLUSIONS
  Recipients of PT grafts showed a higher incidence and earlier onset of TRAS. Re-stenosis was more frequent in AT.
authors.affiliation: Department of Nephrology, Hospital Clínico Universitario San Carlos, Madrid, Spain.
authors.forename: M
authors.initials: M
authors.lastname: Marques
authors.forename: D
authors.initials: D
authors.lastname: Prats
authors.forename: A
authors.initials: A
authors.lastname: Sánchez-Fuctuoso
authors.forename: P
authors.initials: P
authors.lastname: Naranjo
authors.forename: J A
authors.initials: JA
authors.lastname: Herrero
authors.forename: E
authors.initials: E
authors.lastname: Contreras
authors.forename: A
authors.initials: A
authors.lastname: Barrientos
mesh_terms: D000293:Adolescent; D000328:Adult; D000368:Aged; D002675:Child, Preschool; D003404:Creatinine / Q000097:blood; D006084:Graft Rejection; D006801:Humans; D015994:Incidence; D007223:Infant; D016030:Kidney Transplantation / Q000009:adverse effects* / Q000276:immunology / Q000473:pathology; D008875:Middle Aged; D012078:Renal Artery Obstruction / Q000453:epidemiology* / Q000209:etiology
chemical_list: D003404:Creatinine