Evaluation of Ultrasound Changes With the Use of Microneedling Versus Fractional CO2 Laser in Atrophic Acne Scars

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dc.coverageDOI: 10.5826/dpc.1403a168
dc.creatorÑanco-Meléndez, Claudio
dc.creatorYagnam-Díaz, Mathias
dc.creatorMuñoz-Cáceres, Marco
dc.creatorContador-González, Javier
dc.creatorGubelin-Harcha, Walter
dc.creatorChicao-Carmona, Fernando
dc.creatorTan, Jerry
dc.creatorWortsman, Ximena
dc.date2024
dc.date.accessioned2026-01-05T21:17:56Z
dc.date.available2026-01-05T21:17:56Z
dc.description<p>Introduction: Atrophic acne scarring, a common sequela of acne, can be treated by different interventions, including microneedling and laser resurfacing. Objectives: We sought to evaluate the comparative efficacy of microneedling versus fractional CO2 laser in treating atrophic acne facial scars using imaging with high and ultra-high frequency ultrasound. Methods: Participants received 2 sessions, separated by 1 month, of microneedling on the left side of the face and fractional CO2 laser on the right. Color Doppler ultrasound evaluations (24 and 70 MHz) were conducted at baseline and 3 months after treatment. Each patient completed questionnaires on satisfaction, pain, and adverse effects. Results: Nine subjects were enrolled. The frequency order of scar types was boxcar, ice-pick, and rolling. At 3 months, using the acne scar clinical evaluation scale, a decrease in scar scores of both methods was observed for total scars (P = 0.0005), ice-pick scars (P = 0.0128), and rolling scars (P = 0.0007). Twenty-two scars analyzed by ultrasound demonstrated a trend to decrease in size; however, no significant changes were observed for either microneedling or CO2 laser treatments. Moreover, there were no significant differences between these methods. Both treatments were rated as good or very good by patient assessments. There was a low frequency of pain and hyperpigmentation reported with both modalities, albeit somewhat higher with microneedling. Conclusions: Both microneedling and CO2 laser improved atrophic acne scars. Ultrasound did not show significant differences between these modalities.</p>eng
dc.identifierhttps://investigadores.uandes.cl/en/publications/746fdac5-84d0-491d-b5fd-b9e44280d0ab
dc.identifier.urihttps://repositorio.uandes.cl/handle/uandes/67786
dc.languageeng
dc.rightsinfo:eu-repo/semantics/openAccess
dc.sourcevol.14 (2024) nr.3
dc.subjectacne vulgaris
dc.subjectCO2 laser
dc.subjectdermatology
dc.subjectScars
dc.subjectultrasound
dc.titleEvaluation of Ultrasound Changes With the Use of Microneedling Versus Fractional CO2 Laser in Atrophic Acne Scarseng
dc.typeArticleeng
dc.typeArtículospa
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