Rosacea: Definitiondermpathmd.com/Clinical Dermatology/Acne Rosacea.pdf · physiologic flushing...
Transcript of Rosacea: Definitiondermpathmd.com/Clinical Dermatology/Acne Rosacea.pdf · physiologic flushing...
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Rosacea: Definition Diagnosis requires one or more of the following:
flushing (transient erythema) non-transient erythema papules and pustules telangiectasia
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Rosacea: Defintion National Rosacea Society
most important finding is persistent erythema of the central portion of the face lasting for at least 3 months
secondary features: burning or stinging edema ocular manifestations phymatous changes
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Rosacea: Definition Must rule out certain diseases:
polycythemia vera CTD (LE, DM, MCTD) carcinoid mastocytosis previous long term use of topical steroids on the face allergic contact dermatitis
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Subtypes 4 classic subtypes
erythematotelangiectatic papulopustular phymatous ocular
progression from one subtype to another is not the rule
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Erythematotelangiectatic Type
Flushing lasting longer than 10 minutes physiologic flushing lasts secs.-mins.
Redness and telangiectasia concentrated on central portion of face with classic sparing of periocular skin
Stimuli include: emotional stress, hot drinks, EtoH, spicy foods, exercise, hot or cold temps.
Burning or stinging usually accompanies the flush patients are very sensitive to topical products
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Erythematotelangiectatic Subtype
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Papulopustular Type red central face intermittent inflammation with papules and pustules history of flushing but milder than ETR less irritable skin than ETR subtle telangiectasias repeated episodes may lead to solid facial edema
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PapulopustularSubtype
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Papulopustular Rosacea
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Phymatous Rosacea
Marked skin thickening and irregular surface abnormalities nose, chin, forehead, ears, eyelids
4 histologic variants of rhinophyma glandular, fibrous, fibroangiomatous, actinic
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Gnathophyma
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Ocular Rosacea blepharitis and conjunctivitis most common
manifestations inflammation of the lids and recurrent chalazion symptoms: burning or stinging, itching, light
sensitivity, foreign body sensation usually seen in combo with or following skin
involvement
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Chalazion
Conjunctivitis
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Other Clinical Considerations Glandular Rosacea
most common in men with thick, sebaceous skin edematous papules and pustules/nodulocystic lesions
clustered on cheeks women usually with chin involvement usually h/o adolescent acne and scarring usually no product sensitivity, burning, stinging h/o flushing less frequent
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Other Clinical Considerations Granulomatous Rosacea
“granulomatous facial dermatitis” periorificial yellow, brown, or red monomorphic papules
or nodules that may lead to scarring no persistent facial erythema or flushing disease usually not limited to facial convexities and
periocular lesions are usually present
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GranulomatousRosacea
GranulomatousRosacea
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Pathophysiology Mostly unknown
vasculature abnormalities climactic exposures matrix degeneration chemicals and ingested agents pilosebaceous unit abnormalities microbial organisms
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Vasculature abnormalities in cutaneous vascular homeostasis baseline blood flow to the face is increased in ETR and
PPR patients larger, more numerous facial vessels abnormal physiologic response to thermal
mechanisms
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Climatic Exposures caustic effect of climatic exposures damage
cutaneous blood vessels and dermal CT convex surfaces of the face (thus more exposed to
sunlight) are involved in rosacea fair skin, light eyes disease flares in early spring disease usually spares younger patients
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Dermal Matrix Degeneration telangiectasia, persistent erythema, flushing and
edema caused by poor CT support for cutaneous vessels pooling of serum inflammatory mediators metabolic waste
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Chemicals and Ingested Agents no primary role of causation for diet spicy foods, Etoh, hot beverages can trigger amiodarone can trigger rosacea topical steroids, nicotinic acid, high doses of vitamin
B6 and B12 can trigger rosacea-like eruptions
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Steroid induced rosacea-like eruption
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Pilosebaceous Unit Abnormalities 20-50% of biopsy specimens from ETR/PPR patients
showed abnormalities of the follicular unit glandular type of rhinophyma is a follicularly based
process therapies that target follicularly based organisms (P.
acnes, Demodex) are useful
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Microbial Organisms Demodex
prefers skin regions most often affected by rosacea increased rosacea and Demodex with age in one study, 22% of rosacea patients had anti-Demodex
antibodies number of mites elevated in patients with PPR
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Demodex
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Microbial Organisms H. pylori
historical association between rosacea and GI disease H. pylori very common in the general population no evidence for association for H.pylori infection and
development of rosacea
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Therapy
In General guide therapy based on rosacea subtype identify and avoid triggers daily use of broad-spectrum sunscreen
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Sunscreen Physical blockers (TiO2, ZnO) best tolerated silicones should be included in the sunscreen to
minimize burn/sting Rosac cream
sodium sulfacetamide 10%/sulfur 5% plus Parsol 1789 and other sunscreens in a dimethicone vehicle
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Cosmetics Avoid astringents, toners, menthol, and camphor-
containing products use soap free cleansers apply non-waterproof make-up only and use
fingers, not sponges or other applicators apply gentle emollient (ie. Cetaphil cream) prior to
application of other products
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Metronidazole 0.75% Metrocream, Metrogel, Metrolotion 1% metronidazole (Noritate) reduces erythema and inflammatory lesions apply once daily no sig. difference between 0.75% and 1% Preg category B
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Sodium Sulfacetamide and Sulfur10% and 5% Sulfacet-R (tinted and tint-free lotions) Plexion wash and TS Rosanil cleanser Rosula lotion Clenia wash and lotion Rosac cream AvarGreen gel
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Sodium Sulfacetamide and Sulfur reduces erythema and inflammatory lesions proven to be more effective than topical
metronidazole contraindicated in sulfa allergic patients and
kidney disease 1 in 5 will experience pruritus, irritation, contact
derm, or xerosis Preg. Category C
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Azelaic Acid Finacea-15% azelaic acid gel reduces erythema and inflammatory lesions 38% experience burning, stinging, itching although
usually transient more efficacious than metronidazole Preg. Category B
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Benzoyl Peroxide Best used in PPR and phymatous rosacea reduces inflammatory lesions will cause stinging and burning in ETR Preg. Category C
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Tretinoin Promotes connective tissue remodeling and reduces
dermal inflammation provide anti-angiogenic effect and are proven to
reduce erythema over a 2-6 month course irritation not usually significant enough to warrant
discontinuation Preg. Category C
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Other Topicals Erythromycin/Clindamycin
will reduce papules and pustules Tacrolimus (Protopic)
effective in treatment of steroid-induced rosacea-like eruptions
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Tetracycline Mainstay for >40 years although not FDA approved for
rosacea doses of 250mg daily effective in reducing papules and
pustules within 2-4 weeks Periostat (Doxy) at 20mg BID is also effective
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Macrolides Erythromycin
use in pregnancy or lactation Clarithromycin/Azithromycin
Clarithromycin 250mg BID for 4 weeks, then 250mg QD for 4 weeks more effective than Doxy in one study
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Accutane Reduces inflammatory papules, pustules, erythema,
and telangiectasia also useful for early phymatous changes and solid
facial edema proven to reduce overall facial blood flow low doses of 10 mg daily for 4 months usually adequate
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Miscellaneous Combination OCP’s spironolactone B-blockers, clonidine, SSRI’s may help reduce facial
flushing Vascular lasers 585 or 595 nm IPL
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Subtype-Directed Approach ETR
barrier repair and avoidance of irritants am-Metro or Sulfacetamide product pm-barrier followed by 0.025% tretinoin
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Papulopustular subtype Combination of topical and oral antimicrobials am: metro, sulfacetamide,azelaic acid, or BP followed
by sunscreen pm: protective emollient followed by tretinoin add po antibiotics as needed
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Glandular Rosacea Topical antimicrobials (ie. BP) oral tetracycline pm: topical tretinoin severe disease may require accutane spironolactone may be added in women with
predominantly lower face involvement
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Phymatous Subtype Accutane monotherapy surgical approaches
electrocautery dermabrasion laser ablation