Sheldon-area historical tornado activity is below South Carolina state average. It is 32% smaller than the overall U.S. average. On 4/9/1998, a category F3 (max. wind speeds 158-206 mph) tornado 40.7 miles away from the Sheldon place center killed 2 people and injured 17 people and caused $3 million in damages.
Similar results have been found in other studies [17] [18]. Based on these reports we have defined hard-to-heal ulcers in this study as venous leg ulcers with an initial area of 10cm2 or greater and a duration of six months or more.
Fast and effective healing. V.A.C. Therapy (Vacuum-Assisted Closure Therapy) delivers good healing results for Leg Ulcers. These results follow from several known effects of V.A.C. Therapy. 1) It stimulates cell proliferation via the process of micro-strain.t helps formation of granulation tissue and epithelialisation. In a randomized controlled trial Vuerstaek et al. showed the V.A.C. Therapy reduces the healing time for leg ulcers from 45 days for standard wound treatment to 29 days when V.A.C. Therapy was used.