Prolonged follow-up after paediatric pyeloplasty: are repeat scans necessary?
OBJECTIVE
To establish the value of repeat renal scans to assess the relative renal function after successful paediatric pyeloplasty.


METHODS
Renal scans were assessed from 138 patients after successful pyeloplasty; the relative renal function before and immediately after pyeloplasty were compared, as was split renal function at 3.5 and 5.5 years after surgery.


RESULTS
With a few exceptions the relative renal function before and after pyeloplasty was stable. Repeat renal scans 3.5 and 5.5 years after surgery also showed stable split renal function, even if the renal function was already diminished.


CONCLUSIONS
Repeat renal scans are not necessary after successful pyeloplasty in children, as most operated renal units showed stable renal function for 5-7 years. Further studies are needed to investigate whether renal function changes further after puberty.
van den Hoek
Joop
J
Paediatric Urology, Sophia Children's Hospital, Erasmus MC, Rotterdam, The Netherlands. j.vandenhoek@erasmusmc.nl
de Jong
Andra
A
Scheepe
Jeroen
J
van der Toorn
Fred
F
Wolffenbuttel
Katja
K
D000293:Adolescent; D002648:Child; D002675:Child, Preschool; D005500:Follow-Up Studies; D006801:Humans; D007223:Infant; D007231:Infant, Newborn; D007668:Kidney / Q000000981:diagnostic imaging* / Q000503:physiopathology / Q000601:surgery; D007677:Kidney Function Tests; D007682:Kidney Pelvis / Q000503:physiopathology / Q000601:surgery; D011866:Radioisotope Renography; D012189:Retrospective Studies; D013997:Time Factors; D014517:Ureteral Obstruction / Q000503:physiopathology / Q000601:surgery*; D013520:Urologic Surgical Procedures / Q000379:methods*