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ORIGINAL ARTICLES  UROLOGY 

Minerva Urologica e Nefrologica 2016 June;68(3):250-4

Copyright © 2016 EDIZIONI MINERVA MEDICA

language: English

Ho:YAG laser endopyelotomy is effective for primary and secondary ureteropelvic junction obstructions

Chenchen FENG 1, Guowei DONG 2, Zhenyu HANG 3, Haowen JIANG 1, Qiang DING 1, Yuanfang ZHANG 1, Zhong WU 1

1 Department of Urology, Huashan Hospital, Fudan University, Shanghai, China; 2 Department of Urology, Tengchong People’s Hospital, Baoshan, China; 3 Department of Urology, Liyang People’s Hospital, Liyang, China


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BACKGROUND: The aim of this study was to assess the efficacy of laser endopyelotomy in both primary and secondary ureteropelvic junction obstructions (UPJOs).
METHODS: Primary category consisted of 10 patients of congenital UPJOs. Secondary category was comprised of UPJOs in 12 status post pyeloplasty, 10 status post lithotomy, 5 status post shockwave lithotripsy, and 10 status post ureteroscopic lithotripsy. Holmium:Yttrium-Aluminium-Garnet (Ho:YAG) laser endopyelotomy was performed in all subjects. Exclusion criteria included obstructions longer than 2 cm, ipsilateral upper urinary calculi and crossing vasculature.
RESULTS: Mean operation time was 44 min. Average inpatient duration was 1.87 days. No major complication occurred. Follow-ups were at least 12 months. Success rate for single endopyelotomy was 82.5%, leaving 7 patients for a secondary endopyelotomy. Secondary UPJO due to failed pyeloplasty had a predilection of restenosis after endopyelotomy (P=0.0005) compared to other etiologies.
CONCLUSIONS: Ho:YAG laser endopyelotomy is a safe and effective approach effective in both primary and secondary UPJO treatments.

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