OBJECTIVES: To compare, in a single-surgeon, single-institution study, the efficacy of antegrade and retrograde endopyelotomy in terms of success rate and morbidity and to identify which risk factors affect treatment outcomes. METHODS: The results were retrospectively reviewed for 88 @entity1 with @entity4145 treated with endopyelotomy. Antegrade endopyelotomy was performed with a hook knife, scissors, or cutting balloon device. Retrograde endopyelotomy was performed with a cutting balloon device. Objective results were based on intravenous urogram and/or diuretic nuclear renal scan findings, and subjective results were based on direct @entity1 query and questionnaire. RESULTS: Ninety-three endopyelotomy procedures, 64 antegrade and 29 retrograde, were performed. The mean follow-up was 37.0 months (range 5 to 76). The overall success rates between antegrade and retrograde endopyelotomy (81.3% versus 75.9%) were not statistically different (P = 0.553). @entity1 with massive @entity3041 and poor @entity177 were less likely to have successful endopyelotomy. Antegrade endopyelotomy, however, was more successful than retrograde endopyelotomy in @entity1 with massive @entity3041 (66.7% versus 20.0%; P = 0.046). The average operative time for antegrade and retrograde endopyelotomy was 93.9 and 32.7 minutes (P <0.001), respectively. The average length of hospital stay after antegrade and retrograde endopyelotomy was 3.20 and 0.14 nights (P <0.001), respectively. CONCLUSIONS: Both antegrade and retrograde endopyelotomy are effective treatments for @entity4145 associated with minimal morbidity. Antegrade endopyelotomy appears to be more successful in @entity1 with high-grade @entity3041 . Retrograde endopyelotomy results in a shorter hospital stay, a shorter operative time, and less @entity282 .

Impact of XXXX and renal function on treatment outcome: antegrade versus retrograde endopyelotomy.

@entity1 :: ('9606', 'Species') :: ['Patients', 'patients', 'patient'] @entity3041 :: ('MESH:D006869', 'Disease') :: ['hydronephrosis'] @entity177 :: ('MESH:D051437', 'Disease') :: ['initial renal function'] @entity282 :: ('MESH:D010149', 'Disease') :: ['postoperative pain'] @entity4145 :: ('MESH:C537373', 'Disease') :: ['ureteropelvic junction obstruction']
@entity3041 :: (MESH:D006869,Disease) :: ['hydronephrosis']
