A aplicação do plasma rico em plaquetas no tratamento da alopecia androgenética

Androgenic alopecia is the most common type of alopecia. It is characterized by alterations in the hair cycle, leading to progressive follicular miniaturization. Platelet-rich plasma, promotes angiogenesis in the tissue by action of growth factors, which stimulate the hair follicle Objective: To eveluate the hair growth in androgenic alopecia, through cell stimulation performed with the subcutaneous injection of platelet-rich plasma. Methods: Three injections of platelet-rich plasma were performed in 18 patients, at 21-day intervals. The evaluation was performed through comparative clinical photographs, dermoscopy, as well from responses to questionnaires. The Mann-Whitney test and Wilcoxon test were used to analyze the results. Results: For seven women who completed the study, the average improvement was 42.85% (patients) and 35.71% (external observer). For the 9 males, the average improvement was 25.55% (patients) and 18.88% (external observer). In Dermoscopy were observed thickening of hairs, improved local circulation and increased number of follicles. Conclusions: An effective and satisfactory response in androgenic alopecia was verified in relation to the platelet-rich plasma injection technique