Incidence of renal artery stenosis in pediatric en bloc and adult single kidney transplants.
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.
Marques
M
M
Department of Nephrology, Hospital Clínico Universitario San Carlos, Madrid, Spain.
Prats
D
D
Sánchez-Fuctuoso
A
A
Naranjo
P
P
Herrero
J A
JA
Contreras
E
E
Barrientos
A
A
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
D003404:Creatinine