Lesson 1Basic physics and tissue interaction of CO2 ablative fractional lasers (ablation, coagulation, thermal zone)Dis part review CO2 laser physics an tissue mix-up, includin wavelength, water soak-up, ablation an coagulation moves, microthermal zones, an how pulse shape depth, heat damage, an clinical endpoints.
CO2 wavelength and water absorption basicsAblation versus coagulation balanceMicrothermal zones and lattice patternsThermal relaxation time and pulse designDepth of injury and collagen remodelingLesson 2Evidence base and guidelines for fractional CO2 in acne scarring (efficacy, comparative data with other modalities)Dis part sum up clinical proof fi fractional CO2 in acne scarin, includin work data, response by scar type, lastin, compare studies wid other ways, an key agreement an guidelines.
Key randomized and prospective trialsOutcomes by scar type and skin typeDurability of results and retreatment needsComparisons with erbium, RF, and microneedlingGuideline and consensus recommendationsLesson 3Treatment planning: number of sessions, intervals, cumulative approach, and combination therapiesDis part explain how fi design personal treatment plans, includin session number, space, buildup strategies, an mix wid other scar treatments while balancin work, safety, cost, an patient hopes.
Setting realistic goals for scar improvementDetermining number of sessions and intervalsCumulative treatment concepts and endpointsCombining CO2 with microneedling or RFIntegrating fillers, PRP, and subcisionLesson 4Patient selection, contraindications, and risk factors specific to CO2 (skin type considerations, isotretinoin interval, active acne, keloid risk)Dis part review best candidates an key no-go fi fractional CO2, stressin skin type, isotretinoin history, active acne, keloid chance, body sickness, an med use fi cut bad results.
Assessing scar type and severity patternsFitzpatrick skin type and PIH riskIsotretinoin timing and acne controlHistory of keloids and abnormal scarringSystemic illnesses and drug interactionsLesson 5Practical technique: anesthesia options (topical, local blocks), technique for uniform coverage, overlapping strategy, periocular and perioral modificationsDis part cover real doin a fractional CO2 treatments, includin numb choices, eye guard, grid line-up, overlap plan, smoke control, an changes fi eye area an mouth area.
Topical and injected anesthesia optionsMarking, positioning, and eye protectionUniform coverage and overlap techniquePeriocular and perioral safety tweaksSmoke evacuation and room safetyLesson 6Parameter selection rationale: energy density (mJ/MTZ), pulse modes, density/coverage percentage, number of passes and spacingDis part explain how fi pick an tune CO2 settings, includin energy per MTZ, density, coverage, pulse modes, passes, an space, fittin to scar depth, body part, an skin type fi safe work.
Energy per MTZ and depth of ablationDensity, coverage, and overlap limitsPulse modes and stacking strategiesAdjustments for skin type and regionTest spots and titration over sessionsLesson 7Expected downtime and postprocedure care: wound care, dressings, topical agents, sun protection, timeline of healingDis part outline expected downtime, wound change, an set aftercare, includin cleanin, dressings, topicals, infection stop, sun guard, an patient talk bout healin time.
Typical healing timeline day by dayCleansing routines and wound hygieneUse of occlusive dressings and emollientsTopical antibiotics, steroids, and antiviralsSun avoidance, SPF, and pigment controlLesson 8Complications specific to CO2: prevention and management of infection, prolonged erythema, hypertrophic scarring, and postinflammatory hyperpigmentation (PIH)Dis part detail CO2 special problems, includin infection, long redness, thick scarin, an PIH, wid stress pon risk cut, early spot, an proof-base fix strategies.
Bacterial, viral, and fungal infectionsProlonged erythema and telangiectasiaHypertrophic scarring and contracturePostinflammatory hyperpigmentation careHypopigmentation and textural changes
