Ischemia in pelvic organs as an independent pathogenic factor in the development of benign prostatic hyperplasia and...

Area of Science:

• Urology
• Pathophysiology
• Medical Research

Background:

• Benign prostatic hyperplasia (BPH) is a common condition in aging men.
• The role of pelvic organ blood supply in BPH development is not fully understood.
• Pelvic organ ischemia may contribute to lower urinary tract symptoms.

Purpose of the Study:

• To investigate the effect of chronic pelvic organ ischemia on the development of benign prostatic hyperplasia.
• To assess associated changes in urinary bladder function.
• To determine the relationship between ischemia and hormonal levels in prostate tissue.

Main Methods:

• Graduated constriction of the inferior vena cava in male rats to induce pelvic organ ischemia.
• Bioimpedance harmonic analysis to assess intramural blood supply.
• Histological examination for benign prostatic hyperplasia.
• Hormone level analysis (testosterone, dihydrotestosterone, estradiol).
• Infusion cystometry to evaluate bladder function.

Main Results:

• Histological analysis confirmed progressive benign prostatic hyperplasia in ischemic rats.
• No significant changes in testosterone, dihydrotestosterone, or estradiol were observed.
• Cystometry revealed detrusor hyperactivity, indicated by increased intravesical pressure fluctuations.
• Bioimpedance confirmed reduced blood supply to the prostate and bladder.

Conclusions:

• Chronic pelvic organ ischemia is an independent pathogenic factor in benign prostatic hyperplasia development.
• Ischemia-induced BPH is associated with detrusor hyperactivity and urinary disorders.
• Hormonal changes do not appear to mediate ischemia-induced BPH in this model.