摘要
Background Postoperative wound infection was frequently reported in patients undergoing heart valve re- placement and coronary artery bypass surgery （CABG） due to major trauma, long-term bed rest, malnutrition and compromised immune system. Infected patients were usually housed in the same airborne infection isolation rooms. A series of air monitoring and control strategies should be strictly enforced to aim at avoiding airborne fungal contamination and achieving higher cure rate in infected patients. The efficacy of Airinspace plasmair sys- tem in reducing airborne fungal contamination in cardiac postoperative infection wards has not been clearly de- termined. Methods A survey of air contamination was conducted in the cardiac postoperative infection ward using Airinspace plasmair system. 0.3μm？ and 0.5 μm？ in size. Air Laser particle counter was used to determine the air borne particles of samples were incubated and examined for fungal development. Airborne par- ticle counts and fungal loads of air samples collected before and after treatment with Airinspace plasmair system were compared. Results The particle counts in 0.3 μm range collected before （52206 〈 2345） and after （9408 〈 4317） treated with Airinspace plasmair system differed significantly （P 〈 0.01）. The particle counts in 0.5μm range before （12995 〈 422） and after （2016 〈 915） treatment with Airinspace plasmair system also differed significantly （P 〈 0.01 ）. The fungal loads before and after using Airinspace plasmair system showed significant difference [（1975.3 〈 356.1）cfu/m3 vs. （193.83 〈 29.5）cfu/m3, P 〈 0.01]. Conclusion Airinspace plasmair system used in cardiac postoperative infection wards has shown remarkable efficacy in reducing airborne particles and fungal contamination and helpes prevent cross infection.
Background Postoperative wound infection was frequently reported in patients undergoing heart valve re- placement and coronary artery bypass surgery （CABG） due to major trauma, long-term bed rest, malnutrition and compromised immune system. Infected patients were usually housed in the same airborne infection isolation rooms. A series of air monitoring and control strategies should be strictly enforced to aim at avoiding airborne fungal contamination and achieving higher cure rate in infected patients. The efficacy of Airinspace plasmair sys- tem in reducing airborne fungal contamination in cardiac postoperative infection wards has not been clearly de- termined. Methods A survey of air contamination was conducted in the cardiac postoperative infection ward using Airinspace plasmair system. 0.3μm？ and 0.5 μm？ in size. Air Laser particle counter was used to determine the air borne particles of samples were incubated and examined for fungal development. Airborne par- ticle counts and fungal loads of air samples collected before and after treatment with Airinspace plasmair system were compared. Results The particle counts in 0.3 μm range collected before （52206 〈 2345） and after （9408 〈 4317） treated with Airinspace plasmair system differed significantly （P 〈 0.01）. The particle counts in 0.5μm range before （12995 〈 422） and after （2016 〈 915） treatment with Airinspace plasmair system also differed significantly （P 〈 0.01 ）. The fungal loads before and after using Airinspace plasmair system showed significant difference [（1975.3 〈 356.1）cfu/m3 vs. （193.83 〈 29.5）cfu/m3, P 〈 0.01]. Conclusion Airinspace plasmair system used in cardiac postoperative infection wards has shown remarkable efficacy in reducing airborne particles and fungal contamination and helpes prevent cross infection.
