摘要：Introduction The purpose of this manuscript is to investigate the treatment of skin soft tissue embolization or vascular occlusion after the injection of hyaluronic acid (HA) for Injection Rhinoplasty (IR) in Asians with a special interest in the time occurrence of the occlusion. Methods A total of 35 cases were evaluated after receiving HA injections for IR who presented with a vascular occlusive event. They were divided into three stages based on the time to embolization. Immediate, ≤5 hours; early, ≤3 days; and late, >3 days. There were two cases of immediate, 28 deemed early, and five late. Methods to prevent tissue necrosis are reviewed in the manuscript based on these stages. Results Skin color gradually recovered to normal after 11 treatments in 11 patients with mild embolization. No ischemic aggravation or skin necrosis was observed in 19 patients with moderate embolization; red scarring was seen in two and hypertrophic scar with uneven skin color in one patient. The five patients in the severe category had longer healing, more red scars, and more hypertrophic scarring. Conclusion The treatment of skin soft tissue embolization or vascular occlusion after HA IR in Asians can be effected by identifying the stage and degree of embolization and treating appropriately with the outlines presented in this manuscript.
摘要：Background and objective: Vitamin K is a fat-soluble vitamin that plays an important role in the coagulation pathways of living organisms. A popular application of vitamin K has been used to help in the extravascular removal of blood from the skin. The aim of the present study was to test the wound healing effect of vitamin K and some common wound dressing agents available in Erbil city clinical settings such; the moist exposed burn ointment (MEBO) and the Cica silver spray to test their combination with vitamin K injections. Methods: Six groups of albino rats were used (6 rats in each group). Group M received Mebo ointment, Group Creceived Cica silver spray, Group K received Vitamin K injection, Group MK received Mebo ointment+vitamin K injection.Group CK received Cica silver spray +vitamin K Group, and Group N received no- treatment. The duration of the experiments was as 7, 14, and 21 days post wound surgery.The percentage of wound contraction was measured, and the blood serum was collected to test the level of transforming growth factor β (TGFβ) and platelet-derived growth factor (PDGF). Results: Data presented in our study showed that the best wound contraction percentage(99%) was obtained by the MK treated rats compared to the control group. Similar results were obtained fromTGFβ and PDGF data in which MK group showed a significant increase in the levels of these growth factors. Conclusion: The wound healing process is supposed to be due to an increase of TGFβ, PDGF, and enhanced fibroblast proliferation and neovascularization of tissues.