View clinical trials related to Atrophic Acne Scar.
Filter by:Platelet-rich plasma (PRP) is an Acne vulgaris is a common chronic inflammatory skin disorder. It is the eighth most prevalent disease worldwide with a prevalence of 9.4%. Acne scar is one of the most persistent complications of acne, causes marked psychological stress to the patient . The process of acne scar formation can be broadly divided into two stages: increased tissue formation and loss or damage of tissue, corresponding to keloid or hypertrophic scar and atrophic scar, respectively. The ultimate severity of acne scars is correlated with acne grade and the delay in treatment of active disease. The atrophic scars include three subtypes: icepick or V-shaped, rolling or M-shaped, and boxcar or U-shaped scars. Among atrophic scars, the ice pick type represents 60%-70%; the boxcar type represents 20%-30%; and the rolling type represents 15%-25% (Salameh and Shumaker, 2022). According to the qualitative scarring grading system, a macular acne scar type also exists, which clinically shows erythematous, hyperpigmented, or hypopigmented flat marks. autologous blood product containing high concentrations of platelets in a small volume of plasma. PRP has been utilized in the treatment of orthopedic, musculoskeletal, and maxillofacial conditions for many years, it has only recently gained popularity in dermatology. PRP contains various growth factors, including platelet-derived growth factor (PDGF), transforming growth factor (TFG), vascular endothelial growth factor (VEGF), and insulin-like growth factor (IGF). These growth factors stimulate tissue remodeling and are associated with enhanced healing through the attraction of macrophages, upregulation of collagen synthesis, and promotion of tissue regeneration. Moreover, platelet-derived growth factor (PDGF) was shown to promote wound healing, angiogenesis, and tissue remodeling.
Fractional non-ablative laser (FNAL) has been widely used in improving acne scarring. However, there was only one study reported efficacy and safety of the fractional non-ablative 1927nm thulium laser (FTL) and no studies have reported a comparison between FTL and fractional ablative 2940nm Er:YAG laser(FEL), which had been proved effective and safety in many studies. Thus, we designed a prospective, simultaneous spilt-face trial to evaluate the efficacy and safety of FTL in the treatment of acne scarring and make a comparison between FTL and FEL, hoping to provide a new available modality for patients who are intolerable or reluctant to ablative lasers.
This study is to test the efficacy of fractional laser combined with either PRP fluid or PRP gel in the treatment of atrophic acne scars