Abstract:
PURPOSE:Balloon dilation potentially represents a safer and simpler technique for the treatment of ureteropelvic junction (UPJ) obstruction and ureteral strictures. Using a porcine model, we sought to establish the optimal balloon size for endoballoon rupture of the UPJ and ureter. MATERIALS AND METHODS:The efficacy of endoballoon rupture of the proximal and middle ureter with 24F, 30F, and 36F balloon catheters was compared in 19 female minipigs. At the proximal ureter, the effect of the rate of dilation also was evaluated for each balloon size. Extravasation of methylene blue-stained contrast material was assessed with retrograde pyelograms and direct laparoscopic vision. After acute sacrifice, the dilated segments were evaluated histologically with hematoxylin and eosin and Masson's trichrome staining. RESULTS:At the proximal ureter, free extravasation of contrast was observed in 61% of the rapid inflation and 72% of the slow inflation trials; contained extravasation was noted in 28% of the rapid inflation and 17% of the slow inflation trials. Except for two of the 24F slow inflation trials, all of the proximal ureteral trials produced at least one full-thickness tear into the periureteral fat. Grossly, the tears appeared linear with various lengths and no consistent orientation. Rapid inflation and increasing balloon size tended to produce a ureterotomy with less damage to the ureter surrounding the tear. At the mid-ureter, none of the balloon sizes consistently produced a transmural tear. CONCLUSIONS:Rapid dilation and use of a 36F balloon capable of maintaining a low profile after inflation may result in a cleaner proximal ureterotomy with less distortion of the untorn neighboring proximal ureter. Both 36F and 30F balloons consistently produced a full-thickness proximal ureterotomy in normal porcine tissue. For mid-ureteral strictures, balloon dilation to even 36F may fail to create a suitable ureterotomy. However, it must be noted that dysplastic or scarred tissue may respond differently to dilation than the more elastic normal porcine tissues used in this study.
journal_name
J Endouroljournal_title
Journal of endourologyauthors
Collyer WC,Landman J,Olweny EO,Andreoni C,McDougall EM,Clayman RVdoi
10.1089/089277901753284170subject
Has Abstractpub_date
2001-11-01 00:00:00pages
937-42issue
9eissn
0892-7790issn
1557-900Xjournal_volume
15pub_type
杂志文章abstract:PURPOSE:To determine the feasibility of retrograde endoscopy after radical retropubic prostatectomy (RRP) and its effects on post-prostatectomy continence. PATIENTS AND METHODS:We retrospectively reviewed all patients who underwent RRP at our institution between 1999 and 2005, identifying those who subsequently requir...
journal_title:Journal of endourology
pub_type: 杂志文章
doi:10.1089/end.2006.0131
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journal_title:Journal of endourology
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pub_type: 杂志文章,评审
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journal_title:Journal of endourology
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journal_title:Journal of endourology
pub_type: 杂志文章
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abstract::The coronavirus disease 2019 (COVID-19) pandemic has had a global impact on all aspects of health care, including surgical procedures. For urologists, it has affected and will continue to influence how we approach the care of patients preoperatively, intraoperatively, and postoperatively. A risk-benefit assessment of ...
journal_title:Journal of endourology
pub_type: 杂志文章,评审
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journal_title:Journal of endourology
pub_type: 杂志文章
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journal_title:Journal of endourology
pub_type: 临床试验,杂志文章
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journal_title:Journal of endourology
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journal_title:Journal of endourology
pub_type: 杂志文章
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journal_title:Journal of endourology
pub_type: 杂志文章,评审
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journal_title:Journal of endourology
pub_type: 杂志文章
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更新日期:2011-05-01 00:00:00
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journal_title:Journal of endourology
pub_type: 杂志文章,随机对照试验
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更新日期:2008-12-01 00:00:00
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journal_title:Journal of endourology
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pub_type: 杂志文章
doi:10.1089/end.2009.0338
更新日期:2010-01-01 00:00:00
abstract:: Introduction and Objective: Single-use flexible ureteroscopes have the benefit of decreasing infection transmission, avoiding sterilization need, and no maintenance cost. Primary objective was to compare in vivo performance and surgical outcomes with two single-use uretero...
journal_title:Journal of endourology
pub_type: 杂志文章
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更新日期:2021-01-21 00:00:00
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journal_title:Journal of endourology
pub_type: 杂志文章
doi:10.1089/end.2005.19.1114
更新日期:2005-11-01 00:00:00
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journal_title:Journal of endourology
pub_type: 杂志文章
doi:10.1089/end.2009.0369
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journal_title:Journal of endourology
pub_type: 杂志文章
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journal_title:Journal of endourology
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journal_title:Journal of endourology
pub_type: 杂志文章
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更新日期:1999-12-01 00:00:00
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journal_title:Journal of endourology
pub_type: 杂志文章,评审
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journal_title:Journal of endourology
pub_type: 杂志文章
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journal_title:Journal of endourology
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doi:10.1089/end.2005.19.159
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journal_title:Journal of endourology
pub_type: 历史文章,杂志文章,评审
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更新日期:2010-02-01 00:00:00
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journal_title:Journal of endourology
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journal_title:Journal of endourology
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doi:10.1089/end.1994.8.425
更新日期:1994-12-01 00:00:00
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journal_title:Journal of endourology
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