Résumé de communication

Objectives: 1. Explain the scientific principles behind exosomes and nano fat transfer in the treatment of melasma, including their mechanisms of action and biological benefits. 2. Demonstrate the proper technique for applying exosomes and nano fat transfer, ensuring precision and safety in the procedure. 3. Compare the effectiveness of this alternative with conventional treatments for melasma, highlighting its advantages and limitations. 4. Identify the appropriate patient selection criteria for this treatment, considering factors such as skin type, melasma severity, and medical history. Introduction: The combination of exosomes with nano fat transfer offers a synergistic effect by enhancing cellular communication, accelerating skin repair, and providing long-lasting improvements in skin tone and texture. While exosomes deliver specific regenerative signals, nano fat acts as a biological scaffold that supports prolonged tissue regeneration. This combination not only addresses pigmentation but also improves overall skin health, making it an ideal treatment for patients with melasma who seek long-term solutions beyond conventional depigmenting treatments. Materials / method: The use of exosomes combined with autologous fat and platelet-rich plasma involves extracting approximately 10 cc of fat and mixing it with 1 cc of exosomes and 1 cc of platelet-rich plasma, followed by the injection of this combined solution. The procedure is performed under local anesthesia. A 28-gauge cannula is used to introduce the fat combined with exosomes and PRP. The fat extraction technique is crucial to avoid damaging the adipocytes. The fat must be centrifuged at low revolutions to obtain a purer fat. Results: The results were very significant in 70% of patients, showing improvement not only in melasma but also in skin quality, tone, and texture. We perform this type of procedure when we have already achieved a 50% improvement in melasma with other treatments, allowing us to achieve even better results with this approach. Conclusion: We conclude that this procedure is one of the therapies that can provide the greatest benefits in the treatment of melasma, utilizing regenerative medicine to improve this chronic condition, which often requires combined therapies. Melasma is not a condition that should be treated with a single procedure, but we can enhance its improvement with modern medicine, especially regenerative medicine.