BPH Flashcards
What is the arterial blood supply of the prostate?
PROSTATIC ARTERY
What is the venous drainage of the prostate gland?
prostatic venous plexus -> internal iliac veins
-> internal vertebral venous plexus
What is the innervation of the prostate gland?
inferior hypogastric plexus
What are the causes of BPH?
- hormones -> increased estrogen & decreased testosterone
- growth factors -> secretion of intermediate peptide growth hormones
- genetic factors
What is the pathophysiology of BPH?
develops in middle transitional zone (outer peripheral zone in prostatic cancer)
hyperplasia -> hyperplastic nodule smooth & firm -> slit like urethral compression -> BOO (bladder outlet obstruction)
What are the clinical features of BPH?
STORAGE irritative symptoms
- frequency
- urgency
- urge incontinence
- nocturia
VOIDING obstructive symptoms
- straining
- hesitancy
- intermittency
- poor stream
- terminal dribbling
symptoms of superimposed infections
- dysuria
- hematuria
- constitutional symptoms
incomplete emptying & chronic or acute urinary retention
What is felt on DRE?
- symmetrically enlarged prostate
- smooth & firm
- nontender
- rubbery or elastic texture
What investigations should be done for patient with BPH?
- Urinalysis for all patients with LUTS
if abnormal findings -> urine culture
What is the importance of serum PSA level?
use in suspected prostate cancer
- 1.5 ng/mL -> enlarged prostate
- 4 ng/mL -> prostate cancer
What is the benefit of urodynamic studies?
helps identify the predominant type of LUTS
storage vs voiding
What are the indications of PVR?
- all patients with suspected BOO
- before treatment with antimuscarinic
- baseline before surgery
findings
- > 50ml is abnormal
- > 300ml -> urinary retention
How should BPH be managed?
1- watchful waiting
2- medical therapy -> alpha blocker for symptoms (zosins & tamsulosin)
-> 5 alpha reductase blockers to decrease size (Finasteride & Dutasteride)
3- surgical management
What are the side effects of alpha 1 blockers?
- orthostatic hypotension
- dizziness
- syncope
- tiredness
- peripheral edema
- headache
- ejaculatory problems
- nasal congestions
What are the side effects of 5 alpha reductase blockers?
- ED
- decreased libido
- gynecomastia
What are the indications of surgical intervention?
TRANSURETHRAL RESECTION OF THE PROSTATE in
- recurrent urinary retention
- recurrent UTIs
- renal insufficiency
- bladder calculi
- recurrent gross hematuria
- failure of medical therapy