Pathophysiology of clinical benign prostatic hyperplasia

Area of Science:

• Urology
• Pathophysiology
• Medical Diagnostics

Background:

• Benign prostatic hyperplasia (BPH) is characterized by abnormal prostate anatomy (prostate adenoma) leading to benign prostatic obstruction (BPO).
• BPO can cause harm to the bladder or kidneys, differentiating BPH from other causes of male lower urinary tract symptoms.
• Accurate BPH definition and differentiation are crucial for appropriate patient management.

Purpose of the Study:

• To define clinical benign prostatic hyperplasia (BPH) based on abnormal prostate anatomy and function.
• To establish a method for grading prostate adenoma (PA) using intravesical prostatic protrusion (IPP) and prostate volume (PV) measurements.
• To classify BPH severity into stages (I-IV) based on obstruction effects and quality of life for individualized management.

Main Methods:

• Diagnosis of prostate adenoma (PA) using non-invasive transabdominal ultrasound (TAUS) to measure intravesical prostatic protrusion (IPP) and prostate volume (PV).
• Phenotyping PA based on IPP and PV measurements, correlating these with BPO and disease progression.
• Classifying BPH severity into stages I-IV based on bladder function (post-void residual urine, maximum voided volume) and quality of life (QoL) index.

Main Results:

• Transabdominal ultrasound (TAUS) effectively measures intravesical prostatic protrusion (IPP) and prostate volume (PV) for diagnosing prostate adenoma (PA).
• IPP and PV measurements show good correlation with benign prostatic obstruction (BPO) and disease progression.
• A staging system (Stage I-IV) based on obstruction severity and quality of life (QoL) effectively categorizes BPH for management.

Conclusions:

• Clinical BPH can be accurately defined and differentiated using anatomical and functional assessments.
• Grading PA by IPP and PV, and staging BPH by obstruction and QoL allows for personalized treatment strategies.
• Understanding BPH pathophysiology supports individualized, cost-effective patient care.