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- Title
Delayed decrease in differential renal function after successful pyeloplasty in children with unilateral antenatally detected hydronephrosis.
- Authors
Matsumoto, Fumi; Shimada, Kenji; Kawagoe, Mari; Matsui, Futoshi; Nagahara, Akira
- Abstract
Aim: The aim of this study was to evaluate functional outcome of congenital hydronephrotic kidney. Methods: The records of consecutive children who underwent pyeloplasty for unilateral prenatally detected ureteropelvic junction obstruction were reviewed. Renal function was assessed renographically before and after surgery. Mean follow-up period was 100 months. Results: Sufficient pre- and postoperative data were available for 60 children. Differential renal function (DRF) improved in 14 (23%) and decreased in nine (15%) of 60 patients in the early postoperative period. DRF improved in seven (18%) and decreased in 13 (34%) of 38 patients at the end of follow-up. Five of 14 patients with increased DRF at early postoperative scan returned to the preoperative level at the end of follow-up. No patients with decreased DRF at early postoperative scan showed any recovery in DRF and progressive decrease was seen in four of nine children. Conclusions: The DRF was not stable in some patients after successful pyeloplasty. In some patients impairment of renal function came to be apparent with time. Improvement of DRF may be a transient phenomenon seen in the early postoperative period. To avoid overestimation of functional recovery, long-term follow-up with delayed renographic evaluation is recommended.
- Subjects
HYDRONEPHROSIS; PREOPERATIVE care; KIDNEY diseases; KIDNEY function tests; POSTOPERATIVE care; MEDICAL care
- Publication
International Journal of Urology, 2007, Vol 14, Issue 6, p488
- ISSN
0919-8172
- Publication type
Article
- DOI
10.1111/j.1442-2042.2007.01763.x