Benign Prostatic Hyperplasia Flashcards

1
Q

What is BPH?

A
  • non-cancerous hyperplasia of the glandular-epithelial and stromal tissue of the prostate leading to an increase in its size
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2
Q

What are the RF for BPH?

A
  • Age
    • 40% >50 have BPH
    • 90% > 80 have BPH
  • Afro American /afro carribean
    • Higher testosterone
  • Obesity
  • FHx
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3
Q

What is the most common cause of bladder outlet obstruction and LUTS in men?

A
  • BPH
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4
Q

What is the function of the enzyme 5a reductase found in the prostate?

A
  • converts testosterone to DHT (more potent)
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5
Q

What screening tool is used to evaluate and quantify LUTS?

A
  • International Prostate Symptom Score (IPSS)
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6
Q

Describe the classification of IPSS

A
  • 1-7
    • Mild sx
  • 8-19
    • Moderate sx
  • 20-35
    • Severe
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7
Q

What questions will you ask in the IPSS?

A

“Over the past month how often have you…”

  • Had the sensation of not emptying your bladder completely after you finish urinating? (incomplete emptying)
  • Had to urinate again less than two hours after you finished urinating? (frequency)
  • Found you stopped and started again several times when you urinated? (intermittency)
  • Found it difficult to postpone urination? (urgency)
  • Had a weak urinary stream? (weak stream)
  • Had to push or strain to begin urination? (straining)
  • Most typically get up to urinate from the time you went to bed at night until the time you got up in the morning? (nocturia)
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8
Q

What Ex would you perform for BPH?

A
  • Abdomen - palpable bladder
  • motor or sensory loss, checking knee, ankle jerks and plantar responses - exclude neurogenic bladder
  • DRE
    • more rounded prostate of greater than two finger widths
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9
Q

What are the differentials for BPH?

A
  • prostate cancer
    • asymmetrical, craggy prostate, high PSA
  • UTI
  • Overactive bladder
    • bladder ultrasound - low post-void residual volume
  • Bladder cancer
    • haematuria
  • Chronic prostatitis
  • Interstitial cystitis
  • urethral structures
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10
Q

What ix would you order for BPH?

A

Bedside

  • urinary frequency and volume chart
  • urineanalysis
  • MSU for MCS
  • post void bladder scan

Bloods

  • PSA
  • Routine bloods
  • LFT

Imaging

  • USS (abdo or transrectal)

Other

  • urinary flow assessment
    • Qmax (max flow rate)
    • Post void volume
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11
Q
A
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12
Q

How would you mx BPH?

A
  • Watchful Waiting (WW) - if sx minimal
    • reasssurance, education, monitoring
  • Pharma
    • a-blockers (tamsulosin)
      • if prostate enlargement mild but sx troublesome
    • 5-a-reductase inh. (Finasteride)
      • if prostate significantl enlarged/PSA >1.5
      • can take up to 6 months to be effective
  • Surg
    • transurethral resection of prostate (TURP)
    • transurethral incision of prostate (TUIP) - small prostate (<30ml)
    • Holmium Laser Enucleation of the Prostate (HoLEP)
    • Prostatic urethral lift
    • Open prostatectomy (very large prostate >80ml)
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13
Q

What are the cx of BPH?

A
  • urinary retention
  • recurrent UTI
  • CKD
  • Bladder calculi
  • Haematuria
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14
Q

What are the s.e. of tamsulosin?

A
  • postural hypotension
  • retrograde ejaculation
  • Floppy Iris Syndrome (occurs intra-operatively in those undergoing cataract surgery)
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15
Q

What is a rare but life threatening cx of TURP?

A
  • TURP Syndrome
    • fluid overload
    • hyponatraemia
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16
Q

What are the sx of TURP syndrome?

A
  • confusion
  • nausea
  • agitation
  • visual changes
17
Q

How does Finasteride work?

A
  1. Inh. 5a reductase type 2
  2. Apoptosis of prostatic epithelial cells & reduction in prostate volume

*takes 6 months for clinical effect

18
Q

What are the SE of finasteride?

A
  • reduced libido
  • erectile dysfunction
  • ejaculatory dysfunction (less common)
19
Q

When would you consider a DRE on men?

A
  • LUTS (e.g. nocturia, frequency, hesitancy, urgency or retention)
  • Haematuria
  • Unexplained symptoms that may be explained by advanced prostate cancer (e.g lower back pain, bone pain, weight loss)
  • Erectile dysfunction
  • Other reasons to be concerned of prostate cancer (e.g. elevated PSA)