BPH Flashcards
(35 cards)
What is benign prostatic hyperplasia?
enlarged prostate in absence of malignancy
BPH can impede…
passage of urine leaving bladder
How does BPH present?
Lower urinary tract sx
- weak stream
- hesitancy
- stream intermittency
- post void dribbling
- nocturia
- AUA sx score
Urinary retention
Hx of cytolithiasis
What should you include in your PE?
Genitourinary exam
DRE:
- Note size, consistency, & absence or presence of tenderness
What labs should be performed for BPH?
UA
PSA (if indicated)
What are examples of urologic testing?
- Uroflow study
- Post void residual
- Cystoscopy: trabeculation, obstruction, “kissing lobes”
- Urodynamic study (UDS)
How do you tx BPH?
- watchful waiting
- lifestyle modification
- meds
- surgery
What are lifestyle modifications for BPH?
- avoid fluid intake & diuretics in evening to decrease nocturia
- elevate legs to mobilize & eliminate fluid
- avoid drinks/food that exacerbate sx
- double void to empty bladder
What meds should be avoided in BPH?
- Pseudoephedrine/ alpha agonists
- Caution w/ anticholinergics: can cause retention
What type of meds can you use to tx BPH?
- Phytotherapy (Saw Palmetto)
- Alpha blockers
- 5 alpha reductase inhibitors
What is the MOA of alpha blockers?
block alpha 1 receptors of stroma & bladder neck –> relaxation of SM –> free passage of urine
What are examples of alpha 1 blockers?
Terazosin
Doxazosin
Alfuzosin
What are examples of alpha 1A blockers?
Tamsulosin
Silodosin
What type of meds are more specific at targeting urinary effects, while avoiding effects on BP & nasal passages?
Alpha 1A blockers
What are side effects of alpha blockers?
- Dizziness
- Asthenia
- Congestion
- Orthostatic hypotension/syncope
- Retrograde ejaculation
- Floppy iris syndrome
What is the MOA of 5 alpha reductase inhibitors?
- Blocks conversion of testosterone to DHT –> lower DHT levels
- Decrease prostate volume
- Increase max urine flow
- Improve AUA sx scores
- Decreases risk of BPH progression
How long does it take to see the effect of 5 alpha reductase inhibitors?
Can take 6 mos
5 alpha reductase inhibitors decrease…
PSA by 50%
5 alpha reductase inhibitors are most beneficial in…
larger volume prostates > 40 & PSAs > 1.4
What are 2 examples of 5 alpha reductase inhibitors?
Finasteride
Dutasteride
What are side effects of 5 alpha reductase inhibitors?
- Impotence
- Decreased libido
- Lower ejaculatory volume
- Gynecomastia
What meds can you combine to tx BPH?
Alpha blocker & 5-ARI
- Alpha blocker gives early response –> improved compliance while waiting for 5-ARI to take effect
- Dutasteride + tamsulosin
What PDE5-I is approved for BPH?
Only tadalafil
What are surgery options for BPH?
- TUMT
- TUIP
- Urolift
- TURP
- PVP
- Open simple prostatectomy
- HoLEP