[Cosmetic blepharoplasty complicated by necrotizing periorbital fasciitis: a case report].

Necrotizing periorbital or palpebro-orbital fasciitis represents a unique anatomical site for necrotizing fasciitis, which is an extremely rare and very severe, potentially devastating bacterial infection, rapidly leading to facial necrosis with loss of vision and even death of the patient from toxic shock. In this paper, we report a case of necrotizing periorbital fasciitis as a complication of cosmetic lower eyelid blepharoplasty. Necrotizing fasciitis most often affects the upper and lower limbs, the trunk and the perineal area. It is rarely observed in the facial region due to the rich blood supply in this area. The most commonly implicated pathogen is group A, β-hemolytic "pyogenic"Streptococcus, either alone or in combination with other bacteria, such as staphylococcus or pseudomonas. Mortality varies according to the series and anatomical site. The mortality rate for necrotizing fasciitis is approximately 28 %. It is slightly lower in the periorbital area (15 %). Risk factors for death include alcoholism, diabetes mellitus, immunocompromise, hematologic or pulmonary diseases, and the identity of the causative agent (group A Streptococcus), although approximately 50 % of patients have no predisposing conditions. Management of periorbital necrotizing fasciitis is based on early detection of initial symptoms and on aggressive multidisciplinary treatment including surgical debridement of necrotic areas and antibiotic coverage. The timeliness of treatment and the multidisciplinary approach are considered to be the two essential factors in influencing the mortality and morbidity of this condition.