Dermatologic and Ophthalmic Drugs Advisory Committee July 12, 2004 1 Introduction to Psoriasis بنام خدا.

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Presentation transcript:

Dermatologic and Ophthalmic Drugs Advisory Committee July 12, Introduction to Psoriasis بنام خدا

Dermatologic and Ophthalmic Drugs Advisory Committee July 12, PrevalencePrevalence Psoriasis occurs in 2% of the world’s population Prevalence in the U.S may be as high as 4.6% 35-15years In Africans, African Americans and Asians between 0.4% and 0.7% زن مرد یکسان مبتلا میشوند دوره عود وفروکش دارد Psoriasis occurs in 2% of the world’s population Prevalence in the U.S may be as high as 4.6% 35-15years In Africans, African Americans and Asians between 0.4% and 0.7% زن مرد یکسان مبتلا میشوند دوره عود وفروکش دارد

Dermatologic and Ophthalmic Drugs Advisory Committee July 12, 2004 التهاب غیرعفونی مزمن راجعه پوست Epidermal cells تولید=7برابر(4daysطی) ارثی التهاب غیرعفونی مزمن راجعه پوست Epidermal cells تولید=7برابر(4daysطی) ارثی 3

Dermatologic and Ophthalmic Drugs Advisory Committee July 12, فاکتورهای تشدید کننده –trauma –infections –Stress –تغییرفصل –تغییرهورمونی –trauma –infections –Stress –تغییرفصل –تغییرهورمونی

Dermatologic and Ophthalmic Drugs Advisory Committee July 12, Clinical Variants of Psoriasis

Dermatologic and Ophthalmic Drugs Advisory Committee July 12, Characteristic Lesion of Psoriasis پوسته هایی در زمینه اریتماتوز برجسته=داء الصدف Histopathology –ضخیم شدن پوست –خارش-اتساع رگهای خونی –Auspitz sign=خونریزی با کندن پوسته –=شبنم خونی پوسته هایی در زمینه اریتماتوز برجسته=داء الصدف Histopathology –ضخیم شدن پوست –خارش-اتساع رگهای خونی –Auspitz sign=خونریزی با کندن پوسته –=شبنم خونی

Dermatologic and Ophthalmic Drugs Advisory Committee July 12, 2004 افزایش سرعت تکثیر در لایه بازال عدم روند طبیعی رشد وبلوغ سلول عدم تشکیل لایه محافظ پوست درگیری ناخن:فرورفتگی-تغییررنگ-ازبین رفتن لبه ازاد-جدایی صفحه ناخنonycholysis)) افزایش سرعت تکثیر در لایه بازال عدم روند طبیعی رشد وبلوغ سلول عدم تشکیل لایه محافظ پوست درگیری ناخن:فرورفتگی-تغییررنگ-ازبین رفتن لبه ازاد-جدایی صفحه ناخنonycholysis)) 7

Dermatologic and Ophthalmic Drugs Advisory Committee July 12, 2004 پسوریازیس اکسفولیاتیو:بثورات پیشرفت کرده وتمام سطح بدن را می پوشاند+تب-لرز-عدم تعادل الکترولیتی 8

Dermatologic and Ophthalmic Drugs Advisory Committee July 12, Severity of Disease Three Cardinal Signs of Psoriatic Lesions –Plaque elevation –Erythema –Scale Body Surface Area Three Cardinal Signs of Psoriatic Lesions –Plaque elevation –Erythema –Scale Body Surface Area

Dermatologic and Ophthalmic Drugs Advisory Committee July 12, Chronic Plaque Psoriasis Most Common Variant Plaques may be as large as 20 cm Symmetrical disease Sites of Predilection –Elbows –Knees –Presacrum –Scalp –Hands and Feet Most Common Variant Plaques may be as large as 20 cm Symmetrical disease Sites of Predilection –Elbows –Knees –Presacrum –Scalp –Hands and Feet

Dermatologic and Ophthalmic Drugs Advisory Committee July 12, 2004 پسوریازیس اکسفولیاتیو:بثورات پیشرفت کرده وتمام سطح بدن را می پوشاند+تب-لرز-عدم تعادل الکترولیتی 11

Dermatologic and Ophthalmic Drugs Advisory Committee July 12, Symptoms of Chronic Plaque Psoriasis خارش درد ازدست دادن دما شکایت عمده –ضایعات ناراحت کننده –Low self-esteem –Feelings of being socially outcast –Excessive scale خارش درد ازدست دادن دما شکایت عمده –ضایعات ناراحت کننده –Low self-esteem –Feelings of being socially outcast –Excessive scale

Dermatologic and Ophthalmic Drugs Advisory Committee July 12, اشکال تهدید کننده حیات Generalized Pustular Psoriasis Erythrodermic Psoriasis Generalized Pustular Psoriasis Erythrodermic Psoriasis

Dermatologic and Ophthalmic Drugs Advisory Committee July 12, Generalized Pustular Psoriasis Unusual manifestation of psoriasis Can have a gradual or an acute onset Characterized by waves of pustules on erythematous skin often after short episodes of fever of 39˚ to 40˚C Weight loss Muscle Weakness Hypocalcemia Leukocytosis Elevated ESR Unusual manifestation of psoriasis Can have a gradual or an acute onset Characterized by waves of pustules on erythematous skin often after short episodes of fever of 39˚ to 40˚C Weight loss Muscle Weakness Hypocalcemia Leukocytosis Elevated ESR

Dermatologic and Ophthalmic Drugs Advisory Committee July 12, Generalized Pustular Psoriasis Cause is obscure Triggering Factors –Infection –Pregnancy –Lithium –Hypocalcemia secondary to hypoalbuminemia –Irritant contact dermatitis –Withdrawal of glucocorticosteroids, primarily systemic Cause is obscure Triggering Factors –Infection –Pregnancy –Lithium –Hypocalcemia secondary to hypoalbuminemia –Irritant contact dermatitis –Withdrawal of glucocorticosteroids, primarily systemic

Dermatologic and Ophthalmic Drugs Advisory Committee July 12, Erythrodermic Psoriasis Classic lesion is lost Entire skin surface becomes markedly erythematous with desquamative scaling. Often only clues to underlying psoriasis are the nail changes and usually facial sparing Classic lesion is lost Entire skin surface becomes markedly erythematous with desquamative scaling. Often only clues to underlying psoriasis are the nail changes and usually facial sparing

Dermatologic and Ophthalmic Drugs Advisory Committee July 12, Erythrodermic Psoriasis Triggering Factors –Systemic Infection –Withdrawal of high potency topical or oral steroids –Withdrawal of Methotrexate –Phototoxicity –Irritant contact dermatitis Triggering Factors –Systemic Infection –Withdrawal of high potency topical or oral steroids –Withdrawal of Methotrexate –Phototoxicity –Irritant contact dermatitis

Dermatologic and Ophthalmic Drugs Advisory Committee July 12, 2004 treatmenttreatment هدف: سرعت تغییرسلولی اپیدرم بهبودضایعات پسوریاتیک کنترل دوره بیماری شناسایی عوامل مستعدوتشدیدکننده تغییرسبک زندگی استرسی وکنترل عوامل روحی هدف: سرعت تغییرسلولی اپیدرم بهبودضایعات پسوریاتیک کنترل دوره بیماری شناسایی عوامل مستعدوتشدیدکننده تغییرسبک زندگی استرسی وکنترل عوامل روحی 18

Dermatologic and Ophthalmic Drugs Advisory Committee July 12, 2004 حمام+روغن زیتون-روغن معدنی+برس نرم دارو درمانی: موضعی:کورتیکواستروئید موضعی درسطح وسیع: غیراستروئید: کلسی پوترن-تازاروتن تزریق داخل ضایعه تریامسینولون سیستمیک:متوترکسات پسوریازیس منتشر(بیش از50٪بدن):ترکیبی دارو حساس بنور:UVA(متوکسی پسورالن) پرولیفراسیون سلول UVB حمام+روغن زیتون-روغن معدنی+برس نرم دارو درمانی: موضعی:کورتیکواستروئید موضعی درسطح وسیع: غیراستروئید: کلسی پوترن-تازاروتن تزریق داخل ضایعه تریامسینولون سیستمیک:متوترکسات پسوریازیس منتشر(بیش از50٪بدن):ترکیبی دارو حساس بنور:UVA(متوکسی پسورالن) پرولیفراسیون سلول UVB 19