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Essay / Research Paper Abstract
This 6 page paper explains the V.A.C. therapy for wound closure. V.A.C. is the acronym for Vacuum Assisted Closure. This device uses negative pressure, i.e., vacuum, to remove excess fluid from the wound while applying a dressing. This essay explains how the V.A.C. device works and its advantages over traditional wound treatment. The benefits are discussed. The different situation when this approach is most helpful are identified, e.g., chronic active wounds. The results of one research review are included. Bibliography lists 7 sources. PGvac.rtf
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6 pages (~225 words per page)
File: MM12_PGvac.rtf
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healing (KCI, 2000). The subatmospheric pressure is also referred to as controlled negative pressure, i.e., vacuum (KCI USA, Inc., 2003). The V.A.C. therapy is applied to a special dressing
that is placed directly in the wound cavity or it is placed over a flap or graft (KCI, 2000). The negative pressure, vacuum, removes fluids from the wound, which aids
the normal healing process (KCI, 2000). The V.A.C. is a computerized vacuum pump that applies negative pressure to the entire wound; the pressure applied may be set at a continuous
or intermittent rate or as often is the case, the pressure is applied first continuously and then intermittently (Blue Cross, 2002). The vacuum removes fluid "from the interstitial space of
the wound, enhancing vascular perfusion through vessels compressed by the excess fluid pressure" (Blue Cross, 2002). The premise is that when excess fluid is removed, an "accumulation of healing-inhibitory factors"
are also removed (Blue Cross, 2002). The mechanical stretching from the V.A.C. device results in "deformation of cellular bridges, which increases cellular proliferation, protein synthesis, and granulation tissue" (Blue Cross,
2002). The result is advanced and accelerated wound closure (Blue Cross, 2002). The vacuum is accomplished through tubing and is attached to a foam dressing, which is placed in the
cavity of the wound (Medica, 2000). The other end of the tube is attached to a canister that collects the fluid (Medica, 2000). The process is explained thusly: "The promotion
of wound healing is associated with the removal of excess interstitial fluid from the wound, increased vascularity, decreased bacterial colonization, and stimulation of the growth of healthy tissue by drawing
the edges of the wound toward the center. Also, lengthening the time between dressing changes from every six to eight hours with application of saline packs to an average of
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