1. Intracicatricial PRP injection for Post acne scars post fractional CO2 resurfacing combined with Er: Glass.
P. Bonan, A. Youssef, A. Bassi ,N. Bruscino, E.Schincaglia, M. Troiano
Donatello Dermatology and Laser Research Centre, Florence, Italy
Dermatology and Venereology Department, Mansoura University, Egypt

2. Materials & Methods
40 patients of deep post acne facial scars were treated using combined spot fractional ablative carbon dioxide LASER focused on scars followed by Erbium: Glass LASER over the whole face for 4 sessions with 4 weeks interval; results were evaluated 12 weeks after last session.
PRP was prepared from 9 ml blood collected in a tube prefilled with 1 ml anticoagulant solution followed by centrifugation 500 x g for 10 minutes, where PPP was separated, then 1000 x g for 7 minutes to separate PRP.
Intracicatricial PRP injection was done immediately after completing LASER on each session.

6. Discussion Conclusion
Significant improvement for most of cases in aspects of (e.g. Depth, Color and Texture) was seen.
Less pronounced side effects and faster recovery time were seen in all patients.
After 1st session, patients can feel improvement which drive them to continue treatment rather than getting disappointed by late results of regular fractional LASER resurfacing
Conclusion
Intracicatricial PRP injection post spot fractional CO2 technique combined with whole face Er: Glass resurfacing opens a new field for post acne scar management with better results and lower side effects.