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UNLABELLED: Hidradenitis suppurativa (HS) is a chronic inflammatory skin condition characterized by suppurative infection, sinus tract, and abscess formation. International management guidelines are largely consensus-based. Botulinum toxin (BTX) has been widely used in the treatment of apocrine and eccrine gland disorders, such as hyperhidrosis, although the effectiveness of BTX in the treatment of HS remains unknown. The aim of this systematic review was to understand the published evidence of BTX safety and effectiveness in the management of HS. METHODS: We conducted a PRISMA-compliant, prospectively registered (PROSPERO, CRD42021228732), systematic review. We devised bespoke search strategy and applied it to the Cochrane Central Register of Controlled Trials, Medline, Embase, and OpenGrey up until March 2022. We included all clinical studies that reported outcomes following BTX treatment in patients diagnosed with HS (both adult and pediatric). RESULTS: A total of 4658 studies were identified, of which six met full inclusion criteria reporting data on 26 patients. The six identified studies included one randomized control trial, one case series, and four case studies. The one included randomized control trial demonstrated a significant reduction in the Dermatology Life Quality Index score at 3 months following treatment with BTX. CONCLUSIONS: The effectiveness and safety of BTX in the treatment of HS remain unknown. This systematic review identified a paucity of high-quality clinical data. Evidence of treatment effectiveness is likely to come from registry-based cohort studies using established core outcome sets in the first instance.

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Journal article


Plast reconstr surg glob open

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