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Surgical therapy for vitiligo: when and how?
Key points
Surgical therapy is usually introduced when medical or physical treatments of vitiligo fail.
It consists in bringing melanocytes from pigmented skin area onto white patches of the same subject.
Many different treatments are available including simple skin punch grafting, split thickness grafting, blistering roof grafting and the most sophisticated melanocytes or keratinocytes-melanocytes suspensions.
The graft failure, scarring, infection, irregular pigmentation, cobble stoning appearance and vitiligo kobnerization phenomenon are always possible and limit the use of surgery in vitiligo.
Answer
The surgical option in vitiligo is always possible, at least on selected/ limited depigmented areas.
Two main conditions are required:
— the white vitiligo lesion to be treated should be stable (i.e. avoid surgical procedures in lesions which are progressing – no progression of lesions or appearance of additional depigmentation must be evident for at least 2 years).
— the white area should be recalcitrant to the main and most effective medical and physiotherapeutic UV-based treatments (lights or lasers).
A number of surgical procedures are possible.
Among these are the following:
— punch grafting and mini-grafting
— epidermal grafting
— dermo-epidermal grafting
— suction blisters grafting
— autologous melanocyte suspension transplant
— treatments with tissue - engineered skin
— cultured epidermis with melanocyte
They are considered to be the most popular procedures.
Neo-melanogenesis usually begins shortly after melanocyte graftings or transplantation and continues for a few months at a slow rate.
UV exposure (with lamps or natural sunlight) induces faster and deeper repigmentation after surgery. Surgical techniques offer repigmentation that is not often comparable with normally pigmented skin. They are always invasive procedures. Final results vary considerably from patient to patient.
The psychological aspect of the subject who requires surgical/invasive procedure must be always evaluated and patient’s expectations must be clearly discussed.
Thus, the decision of starting a surgical procedure for vitiligo must be always a well balanced and informed decision.