OBJECTIVE: To report a new endourological technique-percutaneous "sandwich" endopyeloplasty for @entity4145 ( @entity4145 ). METHODS: In the study, 71 @entity1 with @entity4145 had endopyeloplasty by percutaneous @entity384 before and after endopyelotomy, so called "sandwich" endopyeloplasty. The ureter stent was removed after 2 months and all the @entity1 were followed up at least 12 months by ultrasound, intravenous urogram (IVU) or renal scintigraphy. RESULTS: There were 12 @entity1 with primary @entity4145 , and 59 @entity1 with iatrogenic @entity4145 after pyelolithotomy, pyeloplasty, ureteroscopic lithotripsy or percutaneous nephrolithotomy. The mean length of stricture was (1.4  0.8) mm while 5 cases had @entity850 (UPJ). The mean glomerular filtration rate (GFR) of the affected kidney was (19.8  10.8) mL/min.69 patientshad one-stage operation successfully and 2 @entity1 with @entity850 were recanalized in the secondary procedures. The mean time of the operation was (39.3  24.2) min. The complications included 1 case of hemotoma, and 2 cases with residual stones. In the follow-up period, 7 @entity1 were re-obstructed. CONCLUSION: Percutaneous "sandwich" endopyeloplasty shows good results for @entity4145 of selected @entity1 with simple operation, minimal invasiveness, quick recovery and few severe complications.

[Percutaneous "sandwich" endopyeloplasty technique: a new endourological measure for XXXX ].

@entity1 :: ('9606', 'Species') :: ['patients'] @entity384 :: ('MESH:D002311', 'Disease') :: ['balloon dilation'] @entity850 :: ('MESH:D003251', 'Disease') :: ['complete stenosis ureteropelvic junction', 'complete UPJ stenosis'] @entity4145 :: ('MESH:C537373', 'Disease') :: ['ureteropelvic junction obstruction', 'UPJO']
@entity4145 :: (MESH:C537373,Disease) :: ['ureteropelvic junction obstruction']
