BPH Flashcards

1
Q

what subjective tool is used to classify degree of BPH

A

american urological association symptom score (AUASS)

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2
Q

mc herbal therapy used for bph that is not recommended

A

saw palmetto

others: beta-sitosterol, cermilton, pygeum africanum

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3
Q

what 4 procedures are used for bph

A

TURP (transurethral resection of prostate)
transurethral ablation
simple prostatectomy
prostatic arterial embolization

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4
Q

when is sx recommended for bph

A

when COBMO therapy is persistent after 12-24 months of tx

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5
Q

what 4 med classes are used for bph

A

-a-adrenergic antagonists (a-blockers): tamsulosin, doxazosin
-5 alpha reductase inhibitors: finasteride, dutaseride
-anticholinergics: tolterodine, oxybutynin, fesoterodine
-pde5 inhibitors: tadalafil, sildenafil

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6
Q

first line med for bph w. ed

A

pde5 inhibitors: sildenafil, tadalafil

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7
Q

first line med for bph w. urge incontinence

A

beta-3 adrenergic agonists: mirabegron, vibegron

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8
Q

what med prevents progression of bph

A

5 alpha reductase inhibitors

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9
Q

moa of alpha blockers

A

antagonize alpha adrenergic receptors -> relaxation of bladder neck, prostatic urethra, and prostate smooth muscle

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10
Q

what do you tell your pt who says alpha blockers are not working after 1 week of treatment

A

it takes days to weeks to become effective

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11
Q

who are alpha blockers recommended for

A

first line tx for pt’s with normal prostate size AND psa

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12
Q

mc dose limiting s.e of alpha blockers

A

hypotn
syncope

mc w. terazosin and doxazosin (immediate-release)

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13
Q

when combined w. antihypertensives and pde5 inhibitors, alpha blockers can cause

A

hypotn

less w. tamsulosin

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14
Q

alpha blockers should be titrated up q

A

2 weeks

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15
Q

when should pt take alpha blocker

A

bedtime

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16
Q

alpha blockers are not recommended as monotherapy for patients with bph and

A

htn

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17
Q

what 2 alpha blocker require dose titration

A

doxazosin
terazosin

older and cheaper

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18
Q

moa for 5 alpha reductase inhibitors

A

inhibit 5 alpha reductase -> inhibits conversion of testosterone to dihydrotestosterone -> inhibits prostate tissue growth -> shrinks enlarged prostate

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19
Q

5 alpha reductase inhibitors result in shrinkage of prostate __% x __ months

and can decrease psa by __%

A

20-25%
6 months
50%

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20
Q

how long do 5 alpha reductase inhibitors take to work

A

minimum of 6 mo

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21
Q

benefits of alpha reductase inhibitors over alpha blockers

A

5 alpha reductase inhibitors:
prevent bph-related complications
prevent disease progression

22
Q

5 alpha reductase inhibitors are first line tx for patients with

A

enlarged prostate AND/OR elevated psa

23
Q

s.e of 5 alpha reductase inhibitors (5)

A

decreased libido
ed
ejaculation d.o
gynecomastia
breast tenderness
orthostatic hypotn (not as severe as alpha blockers)

24
Q

what 3 s.e of 5 alpha reductase inhibitors may persist after drug is stopped

A

decreased libido
ed
ejaculation d.o

25
when would combo therapy of alpha blockers and 5 alpha reductase inhibitors be considered (2)
-symptomatic pt who have not responded to monotherapy -high risk of bph complications
26
t/f: alpha blockers are contraindicated in pt w. htn
f!
27
how would you adjust dosing for pt on alpha blocker plus htn meds
take antihypertensives in the AM take alpha blocker in the PM
28
management of bph w. mild sx
watchful waiting
29
when would you start a pt on a 5 alpha reductase inhibitor
mod-severe sx w.o bph complications AND prostate >/= 30 g if prostate < 30 g -> watchful waiting
30
how would you manage a pt w. severe bph sx and compications
surgery
31
what 2 bph drugs relax prostatic smooth muscle
alpha blockers pde 5 inhibitors
32
what bph drug reduces the size of the prostate
5 alpha reductase inhibitors
33
what bph drug is most useful for relieving voiding sx and improving flow rate
alpha blockers
34
when are anticholinergics used for bph
overactive bladder
35
5 chronic conditions associated w. ed
htn DM BPH CAD CKD
36
4 lifestyle factors associated w. ed
smoking etoh obesity reduced PA
37
first line tx for bph
manage comorbidities lifestyle factors
38
4 meds commonly associated w. ED
bb TCAs 5 alpha reductase inhibitors HCTZ
39
8 classes of drugs associated w. ED
antihypertensives CNS depressants lipid meds antidepressants/antipsychotics anticonvulsants GI agents antiandrogens and hormones recreational drugs
40
what must you do before initiating drugs for ED
-medical, social, med hx w. emphasis on cardiac conditions -assess ability to have sex -assess ddi -address reversible/modifiable factors first
41
what bph drug inhibits cGMP degradation, which causes smooth muscle relaxation
pde-5 inhibitors
42
what needs to be present in order for pde 5 inhibitors to work
sexual stimulation
43
s.e of pde 5 inhibitors
hypotn ha facial flushing nasal congestion dyspepsia myalgia back pain priaprism (rare)
44
most concerning s.e of pde5 inhibitors
priaprism medical attention needed if erection > 4-6 hr
45
what pde5 inhibitor can be used concurrently for symptomatic tx of bph
tadalafil (cialis)
46
absolute contraindication for pde5 inhibitors
nitrates
47
drugs to be cautious w. when taking pde 5 inhibitors
alpha 1 blockers erythromycin antifungals
48
what pde5 inhibitor interacts w. antiarrhythmics
levitra
49
up to __ of patients will not respond to pde5 inhibitors, but __ attempts may be needed for success
1/3 6-8
50
alternative medication to pde5 inhibitors for ed
alprostadil
51
moa for alprostadil
prostaglandin E1 analog stimulates adenyl cyclase -> increased cAMP, smooth muscle relaxation, increased penile rigidity
52
dosing for cialis if used as adjunctive sx tx for bph
must be daily