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[The correlation between urodynamics and morphology in men with benign prostatic hyperplasia].
Hironobu Wakeda1, Mineo Takei, Akito Yamaguchi
1Department of Urology, Miyazaki Medical College.
Summary
Patients with benign prostatic hyperplasia and a middle lobe experienced stronger obstruction and poorer voiding. However, transurethral resection improved their urinary flow, indicating successful treatment for this specific condition.
Area of Science:
- Urology
- Medical research
Context:
- Benign prostatic hyperplasia (BPH) is a common condition in aging men.
- The presence of a middle lobe in BPH can influence urinary obstruction.
- Pressure-flow studies (PFS) are crucial for evaluating bladder outlet obstruction.
Purpose:
- To compare pressure-flow study (PFS) findings in patients with and without a middle lobe of benign prostatic hyperplasia (BPH).
- To assess the impact of a middle lobe on bladder detrusor function, degree of obstruction, and voiding parameters.
- To evaluate the effectiveness of transurethral resection (TURP) in patients with BPH and a middle lobe.
Summary:
- A study of 2,439 BPH patients, with 798 undergoing PFS, revealed higher rates of normal bladder detrusor function (71.9% vs 53.3%) in those with a middle lobe.
- Patients with a middle lobe exhibited a stronger degree of obstruction (89.0% vs 79.4%) when bladder detrusor function was normal.
- In middle lobe patients, increased post-voided residual volume and lower maximum flow rates were observed pre-operatively.
Impact:
- Findings suggest that the presence of a middle lobe in BPH correlates with more severe obstruction.
- Transurethral resection (TURP) appears to significantly improve voiding ability in patients with a middle lobe.
- This research aids in understanding the specific urodynamic characteristics associated with BPH middle lobe obstruction.