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Nosocomial Infection ----Prevention and control. Wang kefang ( 王克芳 ) wangkf@sdu.edu.cn. 你知道吗? 从 2008 年起, 10 月 15 日是个 ____ 日吗 ?. 10 月 15 日是“ Global Handwashing Day ” 2005 年世界卫生组织提出, 2008 年正式设立 __ 2008 年 10 月 15 日的< 健康报 >. 3. Hand Hygiene. Clean Hands are
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Nosocomial Infection----Prevention and control Wang kefang(王克芳) wangkf@sdu.edu.cn
你知道吗? 从2008年起,10月 15日是个____日吗? 10月 15日是“Global Handwashing Day” 2005年世界卫生组织提出,2008年正式设立 __2008年10月15日的<健康报>
3 Hand Hygiene Clean Hands are Safer Hands SAVE LIVES: Clean Your Hands
何谓手卫生(hand hygiene)? • A general term referring to any action of hand cleansing,including handwashing, antiseptic handrubbing and surgical hand antisepsis --WHO hand hygiene guideline
洗手(hand washing) 用普通肥皂/液和流动水洗手,去除手部皮肤污垢、碎屑和部分致病菌的过程。 • 卫生手消毒(antiseptic handrubbing) 指用速干消毒剂擦搓手的过程。 • 外科手消毒(Surgical hand antisepsis) 外科手术前医护人员用肥皂/液和流动水洗手,再用手消毒剂清除或杀灭暂住菌和减少常居菌的过程。
Today’s topics • Why is hand hygiene important for health care workers(HCWs)? • When should hand hygiene be performed? • How to perform hand hygiene?
Hand Washing HabitsHow often do you wash your hands ……(Americans,2005 ) – Total Sample – After petting a dog or cat 42%(16%) After using the Bathroom in your home 83%(10%) Always wash my hands (Usually wash my hands) Before handling Or eating food 77%(14%) After changing a diaper 73%(4%) After coughing or sneezing 32%(23%) After handling Money 21%(18%) After using a public restroom 91%(6%)
Why is hand hygiene important? 1 • Germs are present on patient skin and surfaces in the patient surroundings
人体不同部位皮肤细菌量 Percent of Patients with MRSA (耐甲氧西林金黄色葡萄球菌) 腋下 13-25% 40% 30-39% 手、手腕 腹股沟
Why is hand hygiene important? 2 • By direct and indirect contact, patient germs contaminate health-care workers' hands • Germs survive and multiply on health-care workers' hands
某位护士的手印 培养24小时后
手部皮肤细菌类型 • 暂住菌 • 原皮肤不存在,主要通过接触而附在皮肤上,处于皮肤表面或角质下表皮细胞上 • 常住菌 • 寄宿于皮肤毛囊和皮脂腺开口处,种类、数量常恒定,多无致病性,占总菌量10~20% • 由于常居皮肤深层,肥皂搓刷不易将它们去除干净,需要用化学消毒剂才能将其杀死或抑制
Why is hand hygiene important? 3 Defective hand cleansing results in hands remaining contaminated
Intervention May 15, 1847 First Second Maternal Mortality Rates Hand Hygiene: Not a New Concept 18 16 14 12 10 Percentage 8 6 4 2 0 1841 1842 1843 1844 1845 1846 1847 1848 1849 1850 Semmelweis IP, 1861
Evidences… Hand hygiene is the single most effective measure to reduce HCAIs • Protect the patient,and Protect yourself
UseWhatto Perform Hand hygiene Plain soap 普通肥皂/皂液 Antimicrobial soap 抗菌肥皂/皂液 Alcohol-based handrub 酒精擦手液
Time After Disinfection % log 0 60 180 minutes 99.9 3.0 99.0 2.0 Alcohol-based handrub (70% Isopropanol) Bacterial Reduction 90.0 1.0 Antimicrobial soap (4% Chlorhexidine) 0.0 0.0 Plain soap Baseline Ability of Hand Hygiene Agents to Reduce Bacteria on Hands
Solid Soap Contamination of 63 Hospitals × 1×104-5个/g 1×106-7个/g
消毒液浸泡: 错误的手消毒方法
Handwashing with soap and water when hands are visibly dirty or following visible exposure to body fluids Adoption of alcohol-based handrub is the gold standard in all other clinical situations
HandwashingRub hands together for at least 15 seconds 40-60秒 Tips on washing hands with soap and water • Wet hands first with water (avoid HOT water); • Apply enough soap; • Rub hands together for at least 15 seconds; • Cover all surfaces of the hands and fingers; • Rinse hands with water; • Dry thoroughly with a single use towel • Use towel to turn off water faucet
handrubbing • Tips on using an alcohol-based hand rub • Apply 1.5 to 3 ml of an alcohol gel to the palm of one hand, and rub hands together; • Cover all surfaces of your hands and fingers, including areas around/under fingernails; • Continue rubbing hands together until alcohol dries (about 15-25 seconds). • Make sure your hands are completely dry prior to putting on gloves. 20-30秒
To clean your hands, you should prefer handrubbing with an alcohol-based formulation, if available. Requires less time Acts faster More effective Better tolerated More accessible Handwashing 40-60 seconds Handrubbing20–30 seconds
Hand Hygiene Scenarios • Scenario 6a6b • Scenario 7a7b • Scenario 8a8b
健康在你手中 请及时清洗你的双手