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  • Title: International consensus recommendations on the aesthetic usage of botulinum toxin type A (Speywood Unit)--Part II: Wrinkles on the middle and lower face, neck and chest.
    Author: Ascher B, Talarico S, Cassuto D, Escobar S, Hexsel D, Jaén P, Monheit GD, Rzany B, Viel M.
    Journal: J Eur Acad Dermatol Venereol; 2010 Nov; 24(11):1285-95. PubMed ID: 20569284.
    Abstract:
    BACKGROUND: Azzalure® (Galderma SA), a newly approved European botulinum neurotoxin type A (BoNT-A), is derived from Dysport™ (Ipsen Ltd.), which has a 20-year history of product consistency and has been widely used for various aesthetic and therapeutic applications. Azzalure® and Dysport™ are collectively referred to as BoNT-A (Speywood Unit) after the unit of their activity, and are distinct from other commercial BoNT-A preparations. Consensus has been developed for the treatment of upper facial wrinkles with BoNT-A (Speywood Unit). OBJECTIVE: To provide consensus recommendations on the treatment with BoNT-A (Speywood Unit) for wrinkles on the middle and lower face, neck and chest region. METHODS: The members of the International Board on Botulinum toxin Azzalure (IBBA) convened to develop consensus based on their extensive experience. RESULTS: The recommended final concentration of BoNT-A (Speywood Unit) is 200 Speywood Units/ml after reconstitution. The consensus recommendations were provided for nine indications, including lower eyelid wrinkles, bunny lines, drooping nasal tip, perioral wrinkles, masseter hypertrophy, drooping mouth corners, dimpled chin, platysmal bands and décolleté wrinkles. For each indication, anatomy of the region to be treated was discussed, as were potential side-effects. The consensus recommendations included the number and location of the injection points, dose range of each point and the total injection, as well as specific injection technique. CONCLUSION: These recommendations provide a guideline for physicians who wish to perform safe and efficacious treatment with BoNT-A (Speywood Unit) on the less commonly treated middle and lower face, neck and chest region.
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