Acne and Rosaea Lecture Powerpoint Flashcards
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___% of young adults have acne
85
Acne vulgaris is not a physically threatening condition, but rather affects patients….
…psychologically
Hormone that controls sebum production
Androgens
Acne vulgaris pathophysiology mech of action (also state the organism responsible for the condition)
-androgens drive sebum production -anormal desquamation obstructs the opening to the folliculosebaceous apparatus -intrafollicular bacteria proliferate (propionibacterium acnes) -proinflammatory mediators result in the development of an inflammatory lesion
Is acne caused by dirt or poor hygiene?
NO!
Is acne exaggerated by stress?
YES
Open comedones vs closed comedones
Black headed pimples come from open comedones resulting from oxidation darkening the color, while white heads come from closed comedones
Papules and pustules presentation in acne vulgaris and how are they different from comedones?
Erythematous papules or yellow pustules from obstructed hair follicle with surrounding inflammation more likely to scar (nodular presentation), they are different from comedones in the level of inflammation present
3 classifications of acne presentation
Mild - noninflammatory lesions only, low risk of scarring Moderate - more extensive comedones and inflammatory lesions Severe - Moderate but also spread to back and other parts of body (or distressing), or nodulocystic lesions with scarring
It is important to stress to the patient receiving acne treatment that…
…it can take at elast 6-8 weeks to notice significant improvement
Acne vulgaris treatment options (5)
-benzoyl peroxide -topical retinoids -salicylic acid (ASA) -oral antibiotics -hormonal therapy
Bonzoyl peroxide for acne treatment mech of action
-antibacterial thru oxidizing activity on proteins of P. acnes, and comedolytic to treat mild to moderate acne
Topical antibiotics (erythromycin, clindamycin) for acne treatment mech of action
Used alongside benzoyl peroxide to prevent antibiotic resistance, decreases total number of P. acnes organisms
Topical retinoids (vit A derivatives) for acne treatment mech of action
-normalizes desquamation of folicular epithelium preventing formation of new comedones and clearing existing ones
Topical retinoids are contraindicated in…
…pregnancy