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Role for intravesical prostatic protrusion in lower urinary tract symptom: a fluid structural interaction analysis
Junming Zheng1, Jiangang Pan2, Yi Qin3
1Department of Urology, The Second Affiliated Hospital of Guangzhou Medical University, 250 Changgang road, Guangzhou, 510260, China. beneon@qq.com.
BMC Urology
|August 20, 2015
Summary
Intravesical prostatic protrusion independently worsens bladder outlet obstruction severity. This finding suggests it is a key marker for clinical decisions regarding lower urinary tract symptoms (LUTS).
Area of Science:
- Urology
- Medical Imaging
- Computational Fluid Dynamics
Background:
- Intravesical prostatic protrusion (IPP) is linked to lower urinary tract symptoms (LUTS) prognosis.
- Confounding factors like prostate volume and urethra curvature complicate IPP's clinical evaluation.
Purpose of the Study:
- To isolate and evaluate the independent effect of IPP on urine flow dynamics.
- To clarify the role of IPP in bladder outlet obstruction (BOO) severity.
Main Methods:
- Developed a fluid-structural interaction analysis approach using 3D MRI models.
- Calibrated prostatic urethra diameters with urodynamic data.
- Compared urine flow dynamics across varying IPP degrees, controlling for other factors.
Main Results:
- Increased IPP correlated with decreased prostatic urethra diameter and increased cross-sectional area variation.
- These prostatic urethra deformations significantly reduced urine flow efficiency.
- Compromised flow efficiency may hinder the effectiveness of BOO alleviation treatments.
Conclusions:
- IPP is an independent risk factor for bladder outlet obstruction severity.
- IPP shows promise as a valuable marker in clinical decision-making for LUTS.
- Further research can refine IPP's role in managing BOO.
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