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You are here: Skin Care Research >
Author: Patel MP, Talmor M, Nolan WB
Author affiliation: Division of Plastic Surgery at New York Presbyterian Hospital-Cornell Medical Center, New York, NY 10021, USA.
Publication date & source: 2004.05, Ann Plast Surg., 52(5):442-7
Publication type: Clinical Trial; Randomized Controlled Trial
Plastic surgeons frequently administer botulinum toxin A (Botox) or collagen as monotherapy to treat glabellar furrows. This study evaluates the possible advantages of combination therapy. Sixty-five patients with moderate to severe glabellar rhytids were prospectively randomized to receive standard injections of Botox, Zyderm II collagen, or a combination. Improvement in rhytids was assessed over 3 months using patient satisfaction scores and an independent physician evaluation. Baseline wrinkle severity was similar in all 3 groups. By 1 month posttreatment, the combination arm showed significantly greater improvement in furrows (79% compared with only 56% and 50% in the Botox and Zyderm arms, respectively; P < 0.05). At 3 months postinjection, the dual-therapy arm maintained better improvement (57% versus 33% and 27% in the monotherapy arms; P < 0.05). Patient satisfaction further highlighted the superiority of the combination approach. By simultaneously addressing the static and dynamic aspects of glabellar furrows, dual therapy provides optimal treatment of this problem.
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