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STEPVAC from iHeal Medicare :

” Negative pressure wound therapy has been increasingly used either as a primary or as an adjunctive therapeutic measure to treat a variety of wounds during the past years. It acts by creating a local environment that promotes cell proliferation, angiogenesis, and granulation tissue formation, leading to accelerated wound healing to the point of spontaneous closure or reducing the wound size to facilitate further surgical reconstruction.”

Int J Low Extrem Wounds. 2013 Jun;12(2):138-45. doi: 10.1177/1534734613483769. Epub 2013 May 9. Current achievements with topical negative pressure to improve wound healing in dehiscent ischemic stumps of diabetic patients: a case series. Georgakarakos E, Charalampidis D, Kakagia D, Georgiadis GS, Lazarides MK, Papanas N. Source 1Department of Vascular Surgery, University Hospital of Alexandroupolis, Democritus University of Thrace, Greece.)