title: Comparison of quality of facial scars after single low-level laser therapy and combined low-level with high-level (PDL 595 nm) laser therapy.
abstract: The main goal of our study was to compare the quality of resulting facials scar 12 weeks after single and combined laser therapy. Forty-one children from age 1.5 to 5 years with facial scars after injury participated in the study. Thirty-one underwent laser therapy, 14 were treated using single low-level laser therapy (670 nm, fluence 3-5 J/cm(-2) ), and 17 underwent combined high-level laser therapy with non-ablative pulsed dye laser (PDL; 595 nm, spot size 7 mm, delay 0.45 ms or 1.5 ms, fluence 9-11 J/cm(-2) , cryogen spray/delay 20/30 ms) and low-level laser therapy. The control group consisted of 10 untreated children. Before treatment and at week 4, 8, and, 12 the scars were evaluated using the POSAS questionnaire. A statistically significant improvement in scars (between ratings before treatment and 4 weeks after therapy, before treatment and 8 weeks after therapy and before treatment and 12 weeks after therapy) was observed in all parameters in both treatment groups (p < 0.0001). For the HLLT+LLLT group the most significant enhancement in the quality of scars was found for all items and at all evaluations, except pigmentation and pliability. There was no improvement observed in quality of facial scars in the control group.
authors.affiliation: Charles University in Prague, 3rd Medical Faculty, Department of Biomedical Physics and Biomedical Informatics, Prague, 10, Czech Republic.
authors.forename: Jana
authors.initials: J
authors.lastname: Vranova
authors.affiliation: AVE LASER CENTRUM, Olomouc, Czech Republic.
authors.forename: Eva
authors.initials: E
authors.lastname: Remlova
authors.affiliation: Czech Technical University in Prague, Faculty of Nuclear Sciences and Physical Engineering, Prague, Czech Republic.
authors.forename: Helena
authors.initials: H
authors.lastname: Jelinkova
authors.affiliation: Charles University in Prague, 3rd Medical Faculty, Department of Biomedical Physics and Biomedical Informatics, Prague, 10, Czech Republic.
authors.forename: Jozef
authors.initials: J
authors.lastname: Rosina
authors.affiliation: Charles University in Prague, 2nd Medical Faculty, Department of Stomatology, Prague, 5, Czech Republic.
authors.forename: Tatjana
authors.initials: T
authors.lastname: Dostalova
mesh_terms: D002675:Child, Preschool; D002921:Cicatrix / Q000473:pathology / Q000532:radiotherapy* / Q000601:surgery*; D003116:Color; D003131:Combined Modality Therapy; D005145:Face; D005260:Female; D006801:Humans; D007223:Infant; D054025:Lasers, Dye / Q000627:therapeutic use*; D028022:Low-Level Light Therapy; D008297:Male; D063868:Patient Outcome Assessment; D018583:Pliability; D011446:Prospective Studies; D011795:Surveys and Questionnaires; D016896:Treatment Outcome
keywords: hemangiomas; laser; vascular tumors