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What is rosacea?
- chronic inflammatory cutaneous disorder that affects the central face
- progressive with intermittent periods of exacerbation and remission
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Define telangiectasia
small, dilated blood vessels on skin
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Define erythema
reddening of skin as a result of vasodilation
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Define phyma
swelling, mass, or hypertrophy of tissue
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Define papules
small, superficial, palpable lesion elevated on skin surface
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Define pustules
superficial, elevated lesions that contains pus beneath epidermis
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Rosacea epidemiology
- increased prevalence among Northern Eurpoean descents
- more common in females
- males are more common to have skin disfiguration
- 30-50 yoa
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Rosacea risk factors
- genetic - relatives or of Northern European descent
- fair skinned
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Rosacea Pathophysiology
- multifactorial: inflammation
- pro-inflammatory substances & degradative enzymes released from inflammatory cells in facial dermis leads to angiogenesis & dermal destruction
- up regulate cytokines
- Microvascular: abnormality of dermis surrounding vessels
- Sun damage
- Others: bacteria (H. pyloir & Demodex folliculorum), neurologic, hormones
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Rosacea Step by Step Pathophysiology
Trigger → recruitment and activation of infammatory cells and other immune cells in facial skin → release inflammatory mediators (histamine & PG) → release degradative enzymes → damage to CT supporting blood vessels → angiogenesis → multiple blood vessels in the face
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Triggers of Rosacea
- topical cosmetics/skin products
- weather
- emotions
- exercise
- beverages
- tobacco
- caffeine
- hormonal changes
- medications (nitroglycerin, BB, nitrates, topical steriods, niacin, amiodarone)
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Rosacea Dx Criteria
- Primary features: one or more of transient erythema (flushing), nontransient erythema, papules, pustules, telangiectasia
- Secondary features: burning/stinging, plaques, dry appearance, facial edema, phymatous changes, ocular manifestations
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Subtypes of Rosacea
- 1. Erythematotelangiectatic (Vascular)
- 2. Papulopustular
- 3. Phymatous
- 4. Ocular
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Rosacea Tx Goals
- identify & avoid triggers
- reduces/alleviate inflammatory lesions & erythema
- decrease flares
- prevent progression
- obtain remission & prevent exacerbations
- keep skin in good condition
- improve QOL
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Subtype 1: Erythematotelangiectatic Rosacea (ETR) - Presentation
- most common type
- flushing & persistent central facial erythema
- telangiectasias common
- central face edema, stinging, burning, roughness, or scaling
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Subtype 1: Erythematotelangiectatic Rosacea (ETR) - Tx
- First Line: avoid triggers
- Second Line: phototherapy OR vascular laser therapy OR topical metronidazole and/or sodium sulfacetamide sulfur in AM (for pts w/ minimal barrier dysfunction) OR isotretinoin
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Subtype 2: Papulopustular (Inflammatory) Rosacea - Presentation
- persistent central facial erythema w/ transient papules and/or pustules
- burning and stinging
- may occur concommitantly w/ vascular rosacea
- resembles acne vulgaris except comedones (white/black heads) are absent
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Subtype 2: Papulopustular (Inflammatory) Rosacea - Mild-Mod Dz
First Line: metronidazole/azelaic acid
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Subtype 2: Papulopustular (Inflammatory) Rosacea - Mod-Severe Dz
- tetracylines - mainstay of oral therapy
- macrolides
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Subtype 2: Papulopustular (Inflammatory) Rosacea - Systemic Therapy
- metronidazole
- isotretinoin (Not first line due to SE & birth defects) - tx refractory disease & has a delayed effect
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Subtype 2: Papulopustular (Inflammatory) Rosacea - Other Tx
- vascular laser therapy
- phototherapy
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Subtype 2: Papulopustular (Inflammatory) Rosacea - Tx Duration
- long-term tx necessary (at least 12 wks) - gradual improvement takes weeks
- relapse often occurs w/i weeks of d/c systemic tx
- topical tx can maintain remission - 6 wks is recommended
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Subtype 3: Phymatous Rosacea - Presentation
- least common subtype overall
- men > women
- thickening skin, nodules, hypertrophy, and hyperplasia of sabaceous glands and CT
- rhinophyma = nose rosacea
- may have telangectasias
- observed concomitantly/after subtype 1 or 2
- social stigma of "alcoholic"
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Subtype 3: Phymatous Rosacea - Systemic Tx
- Antibiotics play limited role
- Isotretinoin - beneficial for early dz; delay progression; decrease hypertrophy & sebaceous glands
- Other for advanced dz: electrosurgical sculpting & laser therapy
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Subtype 4: Ocular Rosacea - Presentation
- dx w/ one of the following: watery/bloodshot eyes, foreign body sensation, burning/stinging, dryness, itching, sensitivity to light, blurred vision, telangectasias of eye or eyelid, or periocular erythema
- blepharitis, conjunctivitis, or irregularity of eyelid margins
- vision changes are rare
- frequently dx w/ cutaneous signs of rosacea
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Subtype 4: Ocular Rosacea - Mild Dz Topical Therapy
- Broad spectrum ATB: azithromycin, polymyxin B/trimethoprim, erythromycin, bacitracin
- Topical steroid solution: rimexolone, loteprednol, fluorometholone (short course for systemic tx) ~2-3 wks to avoid cataracts
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Subtype 4: Ocular Rosacea - Mod-Severe Dz Tx
- tetracyclines - only one shown to tx ocular rosacea
- macrolides - good in kids
- metronidazole
- istretinoin (severe dz)
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Subtype 4: Ocular Rosacea - Tx Duration
- usually 6-12 wks
- gradual tapering of dose after improvement achieved
- relapse after d/c common
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Subtype 4: Ocular Rosacea - Adjuvant Tx
- referall to opthalmologist recommended
- eyelid hygeine - clean eyelids with warm water BID; hot compress 5-10 min QD
- artificial tears
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Metronidazole (Flagyl)
- ATB
- metallic taste, N/V/D
- Disulfiram rx - avoid alcohol
- take w/ food to avoid GI upset
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Isotretinoin (Acutane)
- ADR - dyslipidemia, increased liver fxn tests
- iPLEDGE program - part of REMS program
- only prescribed for 30 days
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Azelaic acid (Finacea)
- FDA approved for rosacea
- apply BID on affected areas on face
- wait to dry before placing cosmetics to face
- ADR - burning, stinging, tinging, pruritis
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Tetracyclines
- ADR - photosensitivity, hepatotoxicity
- CI - 2nd & 3rd trimester and kids < 8 years
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Macorlides
- ADR - GI upset, dizziness, HA, taste disturbances (metallic taste)
- DI - erythromycin
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Coping with common Triggers of Rosacea
- avoid potential triggers
- stress mgmt techniques
- use moisturizer to protect against wind and cold
- coping with humidity/overheating due to exercise - chew on ice chips or use cool, moistened towel; immediately rinse off salt/Cl water; avoid being outside/exercising during hottest time of the day (10 am-2 pm)
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