在逆行性内外科手术中,柔性尿道接入的最佳位置
Yujun Chen1, Xiaofeng Cheng1, Heng Yang1
1Department of Urology, The First Affiliated Hospital of Nanchang University, 17 YongWai Street Surgery Building, 17th Floor, Nanchang, 330006, Jiangxi, China.
Urolithiasis
|August 17, 2023
概括
在逆行性内石流症 (RIRS) 中,柔性尿道接入 (f-UAS) 的最佳位置至关重要. 将f-UAS尖端与柔性尿道镜尖端放在相同的水平上,可以通过灌液提高石块碎片的清除.
科学领域:
- 泌尿器科 泌尿器科 泌尿器科 泌尿器科
- 最少侵入性的手术
- 医疗模拟 医疗模拟
背景情况:
- 逆行性内石流症 (RIRS) 是治疗结石的关键手术.
- 灵活的尿路接入 (f-UAS) 用于在RIRS期间促进仪器通道和灌.
- 假设f-UAS的最佳定位可以提高石块移除效率.
研究的目的:
- 在RIRS程序中确定f-UAS的理想位置.
- 分析f-UAS位置对灌流体动力学和石碎片清除的影响.
- 通过完善f-UAS利用,优化RIRS中的手术结果.
主要方法:
- 使用AutoCAD 2011开发一个3D RIRS模型.
- 使用COMSOL 5.6软件进行RIRS的体外模拟.
- 对灌流体流动模式和石块碎片分布的分析,使用不同的f-UAS位置.
主要成果:
- 在柔性尿道镜 (f-URS) 通道和f-UAS光线内观察到的最高灌液流量.
- 流体速度从高转为低,并从f-URS转为f-UAS转向高.
- 将f-UAS置于与f-URS相同的水平上,显著增加了石碎片清除率 (P < 0.001).
结论:
- 在RIRS中,f-UAS的最佳位置靠近石头,理想情况下与f-URS尖端相平衡.
- 这种定位增强了灌流体流动力学,促进了更大的石碎片驱逐.
- 战略性f-UAS放置可以通过最大化石头清除来提高RIRS的有效性.
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