BPH微创术后前列腺段尿道形态对排尿力学的影响  

Computational fluid dynamics study on the effects of morphology of prostatic urethra in mid-voiding after minimally invasive surgery with BPH

作　　者：张彬[1] 刘爽 张旭辉[1] 梁学志[1] 吴波 刘荣[1] 曹晓明[1] 王东文 Zhang Bin;Liu Shuang;Zhang Xuhui;Liang Xuezhi;Wu Bo;Liu Rong;Cao Xiaoming;Wang Dongwen(Department of Urology,First Hospital of Shanxi Medical University,Taiyuan 030001,China)

机构地区：[1]山西医科大学第一医院泌尿外科,太原030001 [2]国家癌症中心/国家肿瘤临床医学研究中心/中国医学科学院北京协和医学院肿瘤医院深圳医院泌尿外科,深圳518116

出　　处：《中华泌尿外科杂志》2021年第3期226-228,共3页Chinese Journal of Urology

基　　金：山西省重点研发计划高新技术领域项目(201803D121082)。

摘　　要：目前众多的经尿道微创术式治疗良性前列腺增生(BPH)均通过扩大或再造前列腺段尿道(PU)的腔内空间发挥作用,因此,探讨BPH微创术后PU形态对排尿的力学影响,具有重要的指导意义。本研究采用计算流体力学(CFD)技术探讨PU/膀胱颈横径比(RPU-1)对尿流的影响。结果表明,在RPU-1>0.79时,PU两侧出现涡流;且涡流随RPU-1增大而增大,相应的尿道出口流速则逐渐降低。CFD技术可量化模拟PU内的涡流行为,揭示RPU-1所反映的PU腔内空间对尿流动力学的客观影响,是无创尿流动力学研究的可用方法。It is important to investigate the mechanical effects of morphology of prostatic urethra(PU)for benign prostatic hyperplasia(BPH).PU and bladder neck transverse diameter ratio(RPU-1),which related to vortex,and their influence on urine flow were observed by CFD.The results showed that vortexes appeared and expanded with increasing RPU on both sides of PU when RPU-1>0.79,and velocity of external urethral orifice decreased gradually.CFD is an available method for urodynamics research.The quantitative simulation of the relationship between RPU-1 and vortex was proposed for the first time,providing a new idea for advancing theory of PU lumen repair in BPH.

关 键 词：前列腺增生 经尿道手术 前列腺段尿道 计算流体力学 涡流 

分 类 号：R699.8[医药卫生—泌尿科学]