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Adult Acne Mary S. Stone MD Department of Dermatology
Guidelines of care for the management of acne vulgaris. J Amer Acad of Dermatol 74: , 2016
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Acneiform Disorders Acne Vulgaris Acne Rosacea Perioral Dermatitis
Topical Steroid Induced Acne Neonatal and Infantile Acne Drug Induced Acne
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Pathogenesis of Acne Vulgaris
Androgen related overproduction of sebum Abnormal desquamation within the sebaceous follicle Proliferation of Propionibacterium acnes producing inflammation Genetic factors
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Relationship between sebaceous glands and acne
Acne occurs in the neonatal period Sebum is comedogenic Sebaceous gland activity is increased in acne Inhibition of sebaceous gland function improves acne
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Adult Female Acne (>age25)
2x more than adult men seek care 1/23 of all can office visits made by females > 25 years old Distribution typically perioral or mandibular May persist beyond menopause Premenstrual flares very common
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Principles of Therapy Correct defects in keratinization
Decrease sebaceous gland activity Reduce the population of P. Acnes and thereby its extracellular products Produce an anti-inflammatory effect
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Correct Defect in Keratinization
Topical Retinoids (tretinoin, adapalene, tazarotene) Alpha hydroxy acids Salicylic acid Systemic 13 cis retinoid acid (Accutane)
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Reduce P. Acnes Population
Topical Benzoyl peroxide Azelaic acid Topical antibiotics Systemic Antibiotics Retinoids
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Produce an Anti-inflammatory Effect
Local intralesional corticosteroids acne surgery Topical dapsone – may be more effective in adult females Systemic Antibiotics Tetracycline, doxycycline, minocycline corticosteroids
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Dapsone 5% gel BID Appears to act an anti-inflammatory agent
More effective in adult female acne than in adolescents or men Can be oxidised by BPO casuing orange-brown coloration (can be washed off).
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Decrease Sebaceous Gland Activity
Hormonal Therapy OCP’s FDA approved for acne: Ortho Tri-Cyclen, Estrostep and Yaz Least androgenic progestins: desogestrel, norgestimate Drospirenone has antiandrogenic properties Spironolactone Oral Retinoids
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Oral Contraceptives As effective as oral antibiotics, but slower (equal efficacy at 6 months, antibiotics win at 3 months) Improve both inflammatory and non-inflammatory acne Risks must be considered. Especially useful in women who wish contraseption or have other indications such as menorrhagia
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OCP’s Only 4 FDA approved for acne:
Ethinyl estradiol/norgestimate (Ortho TriCyclen) Ethinyl estradiol/norethindrone (Estro step) Ethinyl estradiol/drospirenone (Yaz) Ethinyl estradiol/drospirenone/levomefolate (Beyaz)
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Spironolactone 50-200 mg/day
No need to check potassium in young healthy women
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Diet AAD Guidelines: No specific dietary changes recommended in manage of acne Low glycemic index diets may improve acne Limited evidence suggest that some dairy, especially skim milk may aggravate acne
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13-cis retinoic acid (Accutane)
Extremely effective agent in acne vulgaris Extremely potent teratogen Other side effects include: Dryness of the skin Hyperlipidemia Boney spur formation Rarely depression Inflammatory bowel disease- debated, but likely no relationship
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13-cis-retinoid acid dosing
1mg/kg x 20 weeks mg/kg total dosage Must be prescribed through the ipledge program Some advocating higher dosing 220mg/kg to reduce recurrence
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Drug-induced Acne Anabolic steroids Corticosteroids Phenytoin Lithium
INH EGFR inhibitors
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Acne Rosacea Etiology Vasomotor Liability
menopause alcohol and spicy foods Disruption of epidermal barrier Triggering of innate immune system Demodex Mites
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Rosacea: 4 types Erythematous/telangiectatic Papulopustular
Phymomatous Ocular Unlike acne rosacea does not cause comedones. Patient’s can have both.
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Rosacea Treatment Avoid triggers of flushing Topicals
Metronidazole cream/gel Sodium sulfacetamide Clindamycin lotion Azelaic acid Ivermectin (Soolantra) Brimonidine (Mirvaso) Oral antibiotics- doxycycline 13-cis retinoid acid
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Brimonidine (Mirvaso)
Vasoconstrictive Selective α2-adrenergic receptor agonist 10-20% may have rebound erythema
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Perioral Dermatitis Primarily young women Discontinue topical steroids
Topical metronidazole, erythromycin, clindamycin, pimecrolimus may help Low dose tetracyclines very effective
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Topical Steroids Can induce either perioral dermatitis or acne rosacea
In general, no topical steroids stronger than 1% hydrocortisone should be used on the face
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