| Postsurgical incision wound infection is one of the most common hospital infection, and it ranks the second place inferior to respiratory infections. Mild incisional wound infection can cause delayed wound healing, increase pain, and severe infection may cause wound dehiscence and even cause life-threatening systemic infection. Postsurgical incision wound infection can also affect the turnover rate of hospital beds and usage, and increase the financial burden of hospital and individual patient. Medical dressings play a role of hemostasis, promote healing, and protect the wound from infection. Ideal dressing is a kind of dressing which is based on functional dressing, except for that, it can not only meet the needs of biology, but also meet the needs of patients, health care workers and custodians. Meanwhile, ideal dressings can reduce incisional wound infection rates, promote wound healing. Thus there is a growing emphasis on the research of medical dressings.Objective: This research introduced the development, classification, application of dressings, focusing on infection situations of abdominal incisional wounds covered by Nano silver antimicrobial medical dressings and common sterile medical dressings in one special hospital in Changchun. We try to clarify which one is more suitable surgical incision, more conducive to the prevention of surgical wound infection and can promote wound healing, and provide theoretical evidence for clinical application.Method: This study had a total of 1789 cases of patients who underwent the abdominal surgery during March 2010 to April 2011 in a special third-grade class-A hospital in Changchun and had ruled out patients with blood disease and immunodeficientcy. All patients were divided into A, B groups according to different medical dressings covered on surgical wound. Cases in Group A were 877, and patients'incisional wounds were covered by common sterile medical dressings. Cases in Group B were 912, and patients'incisional wounds were covered by Nano silver antimicrobial medical dressings. All patients in these two groups had a retrospective questionnaire survey. And study the surgical wound infection and wound healing according to medical records.Results: The results showed that 15 cases out of 877 in Group A had surgical wound infection, and infection rate was 1.71%. While in Group B, 4 cases out of 912 had surgical wound infection, and infection rate was 0.44%. The infection rate difference was statistically significant (p<0.05).Infection rates of Class I, Class II and Class III incision in patients in Group A whose incisional wound was covered by common sterile dressing were 0.43%, 1.75% and 5.19%. Infection rates of Class I, Class II and Class III incision in patients in Group B whose incisional wound was covered by Nano silver antimicrobial medical dressings were 0.00%, 0.42% and 0.83%. The infection rate differences of Class II and Class III incision of A, B two groups were statistically significant (p<0.05), and the difference of Class I incision was not statistically significant (p>0.05).In Group A, wound infection rate was 0.35% when incisional wound healing time was less than 7 days, infection rate was 2.07% when incisional wound healing time was between 7 days and 14 days, and infection rate was 3.67% when incisional wound healing time was more than 14 days.In Group B, wound infection rate was 0.44% when incisional wound healing time was less than 7 days, infection rate was 0.47% when incisional wound healing time was between 7 days and 14 days, and infection rate was 0.39% when incisional wound healing time was more than 14 days.There was no difference in wound infection rate between Group A and Group B when incisional wound healing time was less than 7 days (p>0.05). There was significant difference in wound infection rate between Group A and Group B when incisional wound healing time was between 7 days and 14 days (p<0.05). There was significant difference in wound infection rate between Group A and Group B when incisional wound healing time was more than 14 days (p<0.05). Data shows that incisional wound infection rate tended to increase with the prolonged wound healing time when patients'incisional wounds were covered by common sterile medical dressings.Conclusions: Covering the abdominal incision by Nano silver antimicrobial medical dressings can reduce the wound infection rate of emergency surgeries, and reduce the infection rate when incisional wound healing time was more than 7 days. So in order to reduce postsurgical wound infection rate, Nano silver antimicrobial medical dressings should be promoted in clinical surgery. |
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