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Bal (CPT) > Module 3.1.2 (Management of BPH and Prostatitis) > Flashcards

Module 3.1.2 (Management of BPH and Prostatitis) Flashcards

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1
Q

What are the treatment aims for BPH?

A
  • Improving symptoms (by decreasing urinary outflow resistance)
  • Reducing long-term complications
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2
Q

What are some treatment considerations for BPH? What is the international prostate symptom score?

A
  • Is BPH uncomplicated and patient not bothered by symptoms –> watchful waiting an option
  • Aggravating factors such as constipation
  • Prostate size
  • Symptoms severity

> International prostate symptom score = monitor symptoms

  • Mild 0-7
  • Moderate 8-19
  • Severe 20-35
  • Quality of life due to urinary symptoms (1 is pleased, 6 is terrible)
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3
Q

Why surgery for BPH? When is it preferred? What are the options?

A
  • More effective than drug treatment
  • Preferred when symptoms severe, drugs ineffecive, urinary retention
  • Transsurethral resection of the prostate (TURP) - gold standard
  • Open prostatectomy
  • Urolift
  • Minimially invasive techniques

> thermotherapy - TUMT ( transurethral microwave therapy), TUNA (trans-urethral needle ablation), laser treatment

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4
Q

When is drug therapy considered for BPH?

A

Considered when

  • symptoms troublesome
  • patient’s preference
  • surgery contraindicated/not indicated
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5
Q

What are some factors influencing drug selection?

A

Prostate size = crucial

Symptom relief

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6
Q

How long does selective alpha blockers take to work (APST)? What do they do?

A
  • Symptom improvement in 48 hours (full effect in 4-6 weeks)
  • Effective regardless of prostate size
  • Improve urinary flow
  • Indication: symptom relief in BPH and lasts for long term/time
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7
Q

When is alfuzosin (more selective for prostate) CI? I?

A
  • CI in hepatic impairment
  • Metabolised by CYP3A4
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8
Q

When to reduce dose for silodosin?

A

CrCL 30-60 mL/min?

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9
Q

Has terazosin been discontinued?

A

Yas

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10
Q

AE for alpha-1 blockers (APST)?

A

First dose hypotension (prazosin more common), dizziness, headache, urinary urgency, abnormal ejaculation

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11
Q

Which are three alpha-1 blockers that has less BP effects and the better choice in BPH?

A

Alfuzosin, silodosin, tamsulosin = better choice in BPH

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12
Q

Which alpha blocker have to take bd?

A

Prazosin (shorter DOA)

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13
Q

Which alpha blocker has higest rate of ejucalatory abnormalities?

A

Silodosin

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14
Q

Which alpha blocker causes floppy iris syndrome during cataract surgery?

A

all of them but tamsulosin especially

> high selectivity therefore have catarac surgery before starting alpha blocker

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15
Q

What to monitor for alpha blockers?

A

efficacy, BP, symptoms of hypotension

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16
Q

When to stop treatment if no benefits for alpha blockers?

A

after 4-6 weeks, should work beforte this period

17
Q

When are 5-alpha reductase inhibitors used? What benefits does it have in BPH?

A

Reserved for large prostates

> prostate greater than 30-40cm3

  • can improve prostate size, rates of urinary retention, urinary flow, srugery
18
Q

How long does it take for symptom improvement and full effects for 5a-reductase inhibitors?

A
  • 6 month for symptom improvement
  • 12-18 months full effects
19
Q

Compare dutasteride and finasteride (5-alpha reductase inhibitors)

A

dutasteride = inhibit type 1 and type 2 of 5a isozymes = 90% reduction in DHT

finasteride = inibit type 1 = 70% reduction in DHT

20
Q

What are AE of 5-alpha reductase inhibitors

A

Decreased libido, impotence, ejaculatory disorders

> decreased testosterone levels

> less common = gynaecomastia and breast tenderness

21
Q

What is the half life of dutasteride and finasteride

A

dutasteride = 3-5 weeks

finasteride = 6 hours

22
Q

Why should pregnant women or those planning to get pregnant wear gloves when handing dutasteride and finasteride?

A

Casuses feminisation of male foetus

23
Q

Prostate specific antigen reduced by 50%, how long does it take for dutasteride and finasteride? What happens if drugs are stopped? What to do if PSA increases during treatment?

A

6 months of dutasteride

1 year for finasteride

  • PSA returns to baseline after 6 months treatment cessation
  • If PSA increases during treatment –> assess for prostate cancer
24
Q

Why use combination therapy of Alpha blocker and 5a RI? How long for the maximum effect of selective alpha blocker?

A

Prostate greater than 30-40cm3 = 5a reductase inhibitor

Fast relief of symptoms needed = alpha blocker

Selective alpha-blocker can be stopped after 6-12 months maximum effect reached at this time

25
Q

Any other options for BPH? Is any complementary medicines effective for BPH?

A
  • Watchful waiting
  • Tadalafil
  • Anticholienrgic in continiuing bladder overactivity
  • CAMs

Only CAMs that are likely safe and likely effective are

  • Beta sitosterol
  • Pygeum
26
Q

Lifestyle management for BPH may include?

A

Dietary factors.

  • Consuming foods and drinks containing soy, drinking green tea, and taking saw palmetto supplements may benefit the prostate, although this is not yet proven.
  • Also, avoiding or decreasing the intake of alcohol, coffee, and other fluids, particularly after dinner, is often helpful.
  • A higher risk for BPH has been found in association with a diet high in zinc, butter, and margarine, while individuals who eat lots of fruits are thought to have a lower risk for BPH.

Avoiding medications that worsen symptoms.

  • Decongestants (pseudoephedrine, phenylephrine and oxymetazoline) and antihistamines can slow urine flow in some men with BPH.
  • Some antidepressants and diuretics can also aggravate symptoms of BPH.
  • Consult your doctor if you are taking any of these medications to discuss changing dosages or switching medications, if possible.

Kegel exercises.

  • Repeatedly tightening and releasing the pelvic muscle, also known as Kegel exercises, is helpful in preventing urine leakage.
  • Doctors recommend practicing this exercise while urinating in order to isolate and train the specific muscle.
  • To perform a Kegel, contract the muscle until the flow of urine decreases or stops and then release the muscle.
  • It is recommended that men with BPH repeat five to 15 contractions, holding each for 10 seconds, three to five times a day. Consult your doctor for more information.
27
Q

How is beta-sitosterol helpful for BPH?

A

Improves urinary symptoms, maximum urinary flow, post-void residual urine volume

> no effect on prostate size

28
Q

How is pygeum helpful for BPH?

A

Shown to decrease nocturia (19%)

Increase peak urine flow (23%)

Residual urine volume (24%)

29
Q

Is saw palmetto an option for BPH?

A

Likely safe but possibly ineffective

> widely used but data conflicting

30
Q

Non-pharmacological considerations for BPH?

A
  • Avoid cold temperatures (urge to urinate), wetness
  • Relax when urinating, avoid letting bladder get full
  • Pelvic floor exercises
  • Stress reduction
  • Restrict fluid intake at bedtime
  • Reduce coffee, alcohol and spicy foods
  • No smoking
  • Avoid anticholinergic medications (eg OTC antihistamines, can promote urinary retention)
31
Q

What are some complications if BPH isn’t managed?

A
  • Inability to urinate
  • Bladder and kidney damage
  • Bladder infections
  • Bladder stones
  • Incontinence

There will be an increased risk of recurrent UTIs, bladder stones, haematuria and acute urinary retention emergency requiring hospitalisation. This could result in social withdrawal, depression and even relationship breakdown.

32
Q

Treatment aims for BPH?

A
  • Symptom relief
  • Cure infection
  • Reduce complications
33
Q

What to use for mild to moderate infection (empirical) for acute BP

A

Oral trimethoprim or ciprofloxacin for 2-4 weeks (AMH)

Oral trimethoprim or cefalexin for 2 weeks (eTG)

34
Q

What to use for severe infection for BP (short term empirical)? What to ensure for BP ?

A
  • IV antibiotics, fluid replacement
  • Amoxicillin/ampicillin plus gentamicin (renal considerations)
  • Ceftriaxone or cefotaxime (when gentamicin C/I)

Ensure: hydration, stool softener (constipation worsens pain), rest, analgesia (NSAID), paracetamol

35
Q

What to use for chronic bacterial prostatitis?

> penetration of AB is less in chronic so use strong ones

A

Trimethoprim, norlfoxacin or ciprofloxacin for 4-6 weeks (AMH), 4 weeks (eTG)

doxycycline and option (if Ureaplsama or C.trachomatis)

36
Q

What to use for chronic non-bacterial prostatitis?

A
  • Frequent relapses, difficult to manage
  • No proven treatment

> AB (as per CBG) if suspected undiagnosed bacterial infection

> Analgesia and address constipation

> Selective alpha-blockers for symptom relief

> Querrectin 500mg bd or pollen extract (cernilton)

37
Q

What is quercetin? What is its role in chronic NBP?

A

Flavonol, belonging to the class of flavonoids

  • occurs in red wine, onions, green tea, apple, berries, cababge, broccoli, cauliflower, turnips
  • also found in gingko biloba, St John’s wort, american elder

In chronic NBP:

  • reduces pain and improves QOL
38
Q

What are some considerations for prostatitis?

A
  • Avoid nitrofurantoin –> poor penetration for ABP
  • Rarely sexually transmitted or systemic pathogens are involved in acute prostatitis
  • Very rarely sexually transmitted pathogen in chronic bacterial prostatitis
  • Chronic non-bacterial prostatitis: reduce stress, physiotherapy, relaxation
39
Q

What to avoid during quinolone treatment?

A

Avoid quercetin –> reduced efficacy

Bal (CPT) (27 decks)

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