Depressed scar - Deprimert Arr

Deprimert arr (Depressed scar) sitter under hudoverflaten og har et nedsunket eller gropet utseende. Akne er en vanlig årsak til pittingarr.

Behandling
Ice pick scar – TCA peeling (CROSS technique)
Rolling scar – Laser resurfacing by Erbium laser or fractional laser
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      References Methods for the Improvement of Acne Scars Used in Dermatology and Cosmetology: A Review 35628870 
      NIH
      Acne vulgaris er en langvarig hudtilstand som gir ulike typer kviser, som hudormer og cyster. Hvis den ikke behandles riktig, kan den forårsake arr. Denne gjennomgangen utforsker ulike typer aknearr og hvordan de kan behandles. Det finnes tre hovedtyper: icepick, rolling og boxcar scars, som varierer i dybde og utseende. Det finnes mange effektive behandlinger, inkludert laser, radiofrequency, microneedling og chemical peels.
      Acne vulgaris is a chronic skin disease that, depending on its course, is characterized by the occurrence of various skin eruptions such as open and closed comedones, pustules, papules, and cysts. Incorrectly selected treatment or the presence of severe acne vulgaris can lead to the formation of atrophic scars. In this review, we summarize current knowledge on acne scars and methods for their improvement. There are three types of atrophic scars: icepick, rolling, and boxcar. They are of different depths and widths and have different cross-sections. Scars can combine to form clusters. If acne scars are located on the face, they can reduce the patient's quality of life, leading to isolation and depression. There are multiple effective modalities to treat acne scars. Ablative lasers, radiofrequency, micro-needling, and pilings with trichloroacetic acid have very good treatment results.
       A systematic review and meta-analysis on the effects of the ultra-pulse CO2 fractional laser in the treatment of depressed acne scars 35249351
      Denne studien gjennomgikk seks artikler som evaluerte hvor godt den ultrapulserende CO₂‑fraksjonelle laserbehandlingen virker mot deprimerte aknearr. Resultatene viste at denne laserbehandlingen var mer effektiv enn andre metoder, og ga bedre resultater både når det gjelder forbedringshastighet og hudens glatthet.
      This study examined 6 papers about how well the ultra-pulse CO2 fractional laser treats depressed acne scars. The results showed that this laser treatment was more effective compared to other methods, leading to better outcomes in terms of improvement rates and how smooth patients' skin felt.