BPH Flashcards
Common disease characterized by enlargement of prostate
BPH
Common in men over the age of ___, and increases with age
40
What races are most affected?
Americans/Europeans
Risk factors for developing BPH (3)
Aging, intact testicular function, genetics
Term meaning the increase in the number of cells
Hyperplasia
Term meaning the enlargement of cells
Hypertrophy
What hormone stimulates prostate growth?
DHT
Testosterone is converted to DHT by which enzyme?
5alpha reductase
Pathophysiology of BPH (3)
- Levels of 5alpha reductase and DHT stay (high) constant and aren’t decreasing
- Estrogen levels are increasing, which sensitize prostate to DHT
- Decreased apoptosis of prostate cells
Pathway of obstructive BPH
- Prostate growth
- Urethral compression
- Increased resistance
- Weak urinary stream, increased time for urination
Pathway of dynamic BPH
- Response of bladder to bladder outlet obstruction
- Detrusor hypertrophy & diverticula
- Incomplete emptying
- Increased urinary frequency and urgency
True or false: Both dynamic and obstructive BPH can occur
True
Eventually, detrusor muscle ______ and lower urinary tract symptoms become worse
Decompensates
Clinical signs and symptoms of BPH
- Urinary frequency, urgency, incontinence hesitancy
- Nocturia, incomplete emptying
- Increased time to complete urination, straining
Patient assessment techniques
- History and physical - IPSS questions, digital rectal exam (DRE), neurologic exam (rule out incontinence)
- Labs - urinalysis and culture (rule out UTI), SCr (kidney function), prostate specific antigen (PSA levels elevated in prostate cancer - rule out)
- Urodynamics - uroflowmetry, postvoid residual volume - measures if parts of LUT are dysfunctional