The role of partial nephrectomy in the treatment of XXXX .

@entity1 @entity8 @entity455 @entity101 @entity1347 @entity4815 @entity916
PURPOSE: From 5% to 25% of @entity101 in @entity1 is renovascular compared with only 1% in adults. Although much attention is given to @entity455 involving the main renal arteries, @entity916 producing @entity8 may also be intrarenal, involving @entity8 . We present our results of partial nephrectomy in this unique group of pediatric @entity1 with @entity101 in whom @entity916 dependent @entity101 involved only a segment of the kidney. MATERIALS AND METHODS: Six @entity1 10 months to 16 years old were referred for the evaluation of @entity101 . Initial evaluations included computerized tomography, ultrasound, voiding cystourethrography and radionuclide renal scan. Renal arteriography with renal vein @entity916 sampling was performed in 5 @entity1 , of whom 4 underwent selective segmental renal vein sampling. Diagnoses @entity1347 ( @entity8 ), reflux associated scarring and @entity8 . RESULTS: In @entity1 who underwent selective segmental renal vein sampling an increased @entity916 level was present in the area of the @entity8 (mean 24.9 ng./ml. per hour, range 9.2 to 40.6) compared to the ipsilateral renal vein (15.6, 114 to 29.8). Three @entity1 had evidence of contralateral suppression of @entity916 secretion. All 6 @entity1 underwent upper, lower or mid segment partial nephrectomy. All @entity1 became immediately normotensive and remained so at a mean 10 years of followup. CONCLUSIONS: Partial nephrectomy provides an excellent nephron sparing cure for @entity4815 . In the pediatric population selective segmental renal vein @entity916 sampling is invaluable for locating the @entity916 producing lesion. As in adults, contralateral @entity916 suppression is predictive of surgical cure.
