Background The optimal treatment for hypertrophic scar and keloid remains controversial. Therefore, the aim of this systematic review and meta-analysis was to compare the effectiveness of intralesional injection of botulinum toxin type A compared with placebo and intralesional injection of corticosteroid compared with placebo in patients with hypertrophic scar and keloid. Material/Methods Six databases were searched using Medical Subject Headings (MeSH) keywords and included Web of Science, PubMed, EMBASE, the Cochrane Library, WanFang, and CNKI from their inception to March 1 2019, without language restriction. Randomized controlled trials (RCTs) and prospective controlled trials (PCTs) were identified that compared intralesional injection of botulinum toxin type A with placebo and corticosteroid with placebo in hypertrophic scar and keloid. The quality of controlled trials was assessed by the Newcastle-Ottawa Scale (NOS). Results Comparison of intralesional botulinum toxin type A and corticosteroid showed significant differences in the Visual Analog Scale (VAS) (P<0.001) (WMD, −4.30; 95% CI, −4.44 to −4.16) and effective rate (P=0.012) (RR=0.82; 95% CI, 0.70–0.96). Intralesional injection of botulinum toxin type A compared with placebo showed significant differences in the VAS (P<0.001) (WMD, 1.41; 95% CI, 1.21–1.62), the width of scar (P=0.00) (WMD, −0.15; 95% CI, −0.19 to −0.10) and Vancouver Scar Scale (VSS) (P=0.003) (WMD, −0.69; 95% CI, −1.14 to −0.23). Conclusions Systematic review and meta-analysis showed that injection of intralesional botulinum toxin type A was more effective in the treatment of hypertrophic scar and keloid than injection of intralesional corticosteroid or placebo.
It is common to treat bromhidrosis by surgery, but postoperative complications such as subcutaneous exudate and subcutaneous hematoma can occur and lead to delayed healing of the wound and eventually lead to the formation of unattractive scars. In this study, we evaluated our new surgical treatment for bromhidrosis, which we believe improves prognosis over conventional surgery. The new procedure was performed on 22 patients with bromhidrosis. Our procedure is as follows. One centimeter-long incisions are made along the skin and cleaning of the subcutaneous apocrine glands using a special serrated scraping device is completed. Then, several 0.5 cm-long drainage holes are made according to the design of the Sudoku puzzle and 4 anchoring points identified to stabilize the oil gauze. Finally, the incisions were sutured and the wound covered with a bandage. Of 44 axillas, the bromhidrosis of 42 axillas was completely cured, and greatly reduced in 2 axillas. Local epidermal necrosis occurred in 5 axillas, but there was no full-thickness skin necrosis. Subcutaneous hematoma was not observed, and postoperative scarring was minimal. We found that our modified surgery can effectively reduce the occurrence of subcutaneous hematoma, avoid delayed healing of the wound, and minimize postoperative scarring. Level II, therapeutic study.
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