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Objective: To analyze the functional outcome of unilateral Anderson Hynes (AH) Pyeloplasty using DTPA
renography in patients with symptomatic pelvi- ureteric junction (PUJ) obstruction.
Material and Methods: This study included 48 patients with PUJ-obstruction who underwent stentless
AH pyeloplasty. Their record was analyzed for age, clinical presentation, pre and postoperative IVU and
preoperative and postoperative DTPA renography finding. The out come of the pyeloplasty was evaluated
by comparing preoperative and postoperative symptomatic improvement and DTPA renography split
Results: The age range from 3yrs 25yrs with mean age 19.68 yrs. The were 35 (72.9%) male and
13(27.1%) female. The left side was involved in 31(64.58%), right side in 10(20.83%) and 7 (14.58%)
patients had bilateral PUJ -obstruction. The predominant clinical presentation was pain in 36(75%),
urinary tract infection in 4(8.33%), haematuria in 2(4.16%), while in 8(16.66%) patients it was an
incidental finding. The patients were divided into 3 groups based on the renography split function. Group
A: 20-30% function, 16 (33.33%) patients; Group B: 31-40% function, 12(25%) patients and Group C:
>40% function, 20 (41.66%) patients. Post pyeloplasty scan revealed stable renal function in 19(39.58%)
patients, while improvement was noticed in 21(43.75%) patients. The remaining 8(16.66%) had
deterioration in renal function.
Conclusion: Anderson-Hynes Pyeloplasty is an effective treatment for PUJ-obstruction. 99mT-DTPA renal
scan is an important investigation in diagnosing PUJ-obstruction and evaluating the outcome of surgical
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