peyronies disease
DESCRIPTION
urologyTRANSCRIPT
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By Jihad Anad
EAU, Hinman atlas, web
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Definition
Described by Francois Gigot de la Peyronie in 1743
Also known as induratio penis plastica
Fibrotic induration of the penis with concurrent curvature
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Clinical presentationPeak incidence
4th to 6th decadesPain and penile curvature during erectionDifficult intercourseImpotence in some casesA hard fibrotic mass is felt on palpation
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EtiologyFibrosing condition of the tunica albuginea Repetative microtrauma is most probably the
inciting eventDupuytrans contracture has been associated
with PDAlways examine the hands
Possible genetic aetiology
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most commonly associated comorbiditiesand risk factors are :diabetes, hypertension, lipid abnormalities,
ischaemic cardiopathy, erectile dysfunction, smoking, and excessive consumption of alcohol, paget disease
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Clinical coursesome cases is self limitingDevided into acute and chronic phaseIn the acute phase
PainWorsening of the deformityEnlargement of the plaque12 to 18 months duration
Chronic phaseNo painStable deformity
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Spontaneous resolution is uncommon (3-13%)most patients experience disease progression
(30-50%)stabilisation (47-67%).Pain is usually present during the early
stages of the disease but tends to resolve with time in 90% of men.
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TreatmentMedical
Usually during the acute phaseOral therapy
Vitamin E Potassium para-amino benzoate Colchicine Tamoxifen Pentoxifylline
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IntralesionalVerapamilINF alpha 2 betaClostridial collagenaseIntralesional therapies not for cure, but more
for prevention of progression.
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Topical therapiesVerapamilIontophoresisTraction devicesExtracorporeal shock wave lithotripsy
(SWL)Vacuum devices
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Vitamin Etocopherol, a fat-soluble compound that
acts as a natural antioxidantcommonly prescribed by the majority of
urologistsonce or twice daily doses of 400 IU because
of its wide availability, low cost and safetydoubleblind,placebo-controlled crossover
study failed to show a significant effect on penile deformity or plaque size
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Potassium para-aminobenzoate (Potaba)exert an antifibrotic effect through an
increase in oxygen uptake by the tissues, a rise in the secretion of glycosaminoglycans, and an enhancement of the activity of monoamine oxidases
improvement in penile curvature, penile plaque size, and penile pain during erection
Potaba (12 g/day for 12 months)
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TamoxifenTamoxifen is a non-steroidal oestrogen
receptor antagonistmodulation of TGFβ1 secretion by
fibroblasts.reported that tamoxifen (20 mg twice
daily for 3 months) improved penile pain, penile curvature, and reduced the size of penile plaque.
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Colchicine treat acute attacks of goutPeyronie’s disease on the basis of its anti-inflammatory
effectgiven colchicine (0.6-1.2 mg daily for 3-5 months) found
that painful erections and penile curvature improved, while penile plaque decreased or disappeared in 50%
combination of vitamin E and colchicine (600 mg/day and 1 mg every 12 hours, respectively) for 6 months in patients with early-stage Peyronie’s disease resulted in significant improvement in plaque size and curvature, but not in pain compared to ibuprofen 400 mg/day for 6 months
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Acetyl esters of carnitinesuggested that it can reduce intracellular
calcium levels in endothelial cellspatients were randomised to acetyl-L-
carnitine (1 g twice daily) compared to tamoxifen (20 mg twice daily). After 3 months, acetyl-Lcarnitine was significantly more effective than tamoxifen in pain and curvature reduction and inhibition of disease progression but not in penile plaque size reduction
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Pentoxifyllinenon-specific phosphodiesterase inhibitor
which down regulates TGFβ1 and increases fibrinolytic activity
(400 mg three times daily for 6 months) improved penile curvature and the findings on U/S of the plaque
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Intralesional treatmentSteroidsIntralesional steroids are thought to act by opposing the inflammatory effects responsible for Peyronie’s plaqueprogression via inhibition of phospholipase A2, suppression of the immune response and by decreasingcollagen synthesis
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Verapamila calcium channel antagonistincrease in collagenase activity, a modification of
the inflammatory response in the early phase of the disorder, and the inhibition of fibroblast proliferation in the plaques
that intralesional verapamil injections (multiple-puncture technique, 10 mg of verapamil diluted to 10 mL, distributed throughout the plaque every 2 weeks for a total of 12 consecutive sessions
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Clostridial collagenasecollagenase injections received FDA approval
for Dupuytren’s contracturelThe efficacy of intralesional collagenase
injections (three injections of clostridial collagenase 10,000 unit/0.25 cm3 per injection administered over 7-10 days and subsequently administered over 7-10 days at 3 months
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Interferondecrease fibroblast proliferationextracellular matrix production and
collagen production from fibroblasts 5 x 10^6 units of interferon α-2b in 10 mL
saline, two times per week for 12 weekssignificantly improved penile curvature,
plaque size and density, and pain compared to placebo
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Iontophoresistransdermal electromotive drug
administration or electromotive drug administration [EMDA])
iontophoresis with verapamil 5 mg and dexamethasone 8 mg resulted in a statistically significant improvement in penile curvature and plaque size
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Extracorporeal shock wave lithotripsyunknownfirst hypothesis, shock wave therapy works
by directly damaging and remodelling the penile plaque.
The second SWL increases the vascularity of the area by generating heat resulting in an inflammatory reaction, with increased macrophage activity causing plaque lysis and eventually leading to plaque resorption
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prospective, randomised, double-blind, placebocontrolled study, four weekly treatment sessions of SWL, with each session consisting of 2000 focused shock waves, resulted in significant improvement only for penile pain
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Surgical treatmentReserved for patients with PD for at least 12
months (chronic phase) and a stable deformity for at least 3 months
3 groups of surgeryPenile shorteningPenile lengtheningPenile prostesis
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ED
+ -
Penile Prostesis Normal length< 60 degrees
Short penis> 60 degrees
Penile shortening procedure
Penile lengtheningprocedure
Nesbit,16 dotsyachi Graft
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Penile shortening proceduresNesbit procedurefirst to describe the removal of tunical ellipses opposite a non-elastic corporal segment to treat congenital penile curvatureThis operation is based on a 5-10 mm transverse elliptical excision of the tunica albuginea or approximately 1 mm for each 10 degree of curvature
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The overall short- and long-term results of the Nesbit operation are excellent.
Recurrence of the curvature and penile hypoesthesia are uncommon (about 10%)
Penile shortening is the most commonly reported outcome of the Nesbit procedure
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Nesbit P.
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Nesbit P.
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Plication procedures(Yachi,Lue)share the same principle as the Nesbit
operation but are simpler to perform.They are based on single or multiple
longitudinal incisions on the convex side of the penis closed in a horizontal way, applying the Heineke- Miculicz principle
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Yachia p.
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Lue P.
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‘16 dot’ technique
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Penile lengthening procedurescreating a tunical defect, which is covered by
a graftplaque removal may be associated with high
rates of postoperative erectile dysfunction due to venous leak
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Autologous graftsDermisVein graftsTunica albugineaTunica vaginalisTemporalis fasciaBuccal mucosa
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AllograftsCadaveric pericardiumCadaveric fascia lataCadaveric dura matterCadaveric dermis
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XenograftsPorcine small intestinal submucosaBovine pericardiumPorcine dermis
Synthetic graftsGore-TexDacron
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Penile prostesis
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