RT Book, Section A1 Alavi, Afsaneh A1 Kirsner, Robert S. A2 Kang, Sewon A2 Amagai, Masayuki A2 Bruckner, Anna L. A2 Enk, Alexander H. A2 Margolis, David J. A2 McMichael, Amy J. A2 Orringer, Jeffrey S. SR Print(0) ID 1161351153 T1 Wound Healing T2 Fitzpatrick's Dermatology, 9e YR 2019 FD 2019 PB McGraw-Hill Education PP New York, NY SN 9780071837798 LK dermatology.mhmedical.com/content.aspx?aid=1161351153 RD 2024/04/19 AB AT-A-GLANCEWhile acute and chronic wounds are different, all chronic wounds start as an acute wound.In acute wounds, there is an orderly progression from injury to coagulation, inflammation, cell and matrix proliferation, cell migration, and tissue remodeling.In the initial phases, a wide range of growth factors, including platelet-derived growth factor and transforming growth factor-β1, play an important role. In the proliferation/migration and modeling phases, tissue matrix metalloproteinases (MMPs), integrins, basic fibroblast growth factor, and epidermal growth factor are critical. MMP-1, MMP-9, and MMP-10 are essential for remodeling.For acute wounds, moist wounds heal faster, and a variety of wound dressings are available, including hydrogels, polyurethane films, hydrocolloids, foams, alginates, superabsorbent dressings, and collagen-based products.In chronic wounds, the linear progression between the sequential phases of acute wound healing is lost. Chronic wounds are often the result of ischemia, pressure, and infection; healing, in part, is dependent on addressing these factors.Healing after skin grafting is also different, as it depends on revascularization, either neovascularization or inosculation.