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首页> 外文期刊>Southern African Journal of Critical Care >Contamination of pulse oximeter probes before and after decontamination in two intensive care units
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Contamination of pulse oximeter probes before and after decontamination in two intensive care units

机译：在两个重症监护病房进行去污前后，血氧饱和度仪探头被污染

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BACKGROUND. The internal surfaces of pulse oximeter probes may be overlooked as hot spots for pathogenic microorganisms in an intensive care unit (ICU), thereby contributing to the high incidence of hospital-acquired infections. OBJECTIVES. To determine the growth and identification of microorganisms on pulse oximeter probes in the multidisciplinary ICU (MICU) at Charlotte Maxeke Johannesburg Academic Hospital and the burns ICU (BICU) at Chris Hani Baragwanath Academic Hospital, before and after decontamination. METHODS. This was a cross-sectional, comparative and contextual study, using purposive sampling. Data were collected from the internal surfaces of 34 pulse oximeter probes in a MICU and BICU. Each pulse oximeter probe was swabbed before and after decontamination. The endemic microorganism profile for the two ICUs was obtained from a laboratory database. RESULTS. Internal surfaces of 31 (91%; 95% confidence interval (CI) 0.76 - 0.98) pulse oximeter probes were contaminated with 9 different pathogenic microorganisms pre decontamination. Acinetobacter baumannii, Klebsiella pneumoniae and Pseudomonas aeruginosa were endemic to both ICUs, and were the most-frequently isolated microorganisms. Staphylococcus aureus was the most common microorganism endemic to both ICUs, isolated on the internal surfaces of only 2 pulse oximeter probes. Of the internal surfaces of pulse oximeter probes, 6 (18%; 95% CI 0.07 - 0.35) remained contaminated post decontamination, with a microorganism growth reduction of 80% (p=0.0001). CONCLUSION. The internal surfaces of pulse oximeter probes may serve as hot spots for an array of pathogens with the potential to cause infection and outbreaks in ICUs. Decontamination of the internal surfaces of pulse oximeter probes should be emphasised.
机译：背景。脉搏血氧仪探头的内表面可能会被忽略，成为重症监护病房（ICU）中病原微生物的热点，从而导致医院获得性感染的发生率很高。目标要确定去污前后在多学科ICU（MICU）在夏洛特·马克西·约翰内斯堡学术医院和克里斯·哈尼·巴拉格瓦纳特学术医院的烧伤ICU（BICU）上，在脉搏血氧仪探针上确定微生物的生长和鉴定。方法。这是一项有目的的抽样调查，是一项横断面，比较性和背景性研究。从MICU和BICU中的34个脉搏血氧仪探头的内表面收集数据。在净化之前和之后都要擦拭每个脉搏血氧仪探头。这两个重症监护病房的地方性微生物分布图是从实验室数据库中获得的。结果。 31个（91％; 95％置信区间（CI）0.76-0.98）脉搏血氧仪探头的内表面在消毒前被9种不同的病原微生物污染。鲍曼不动杆菌，肺炎克雷伯菌和铜绿假单胞菌均为两种ICU特有的，并且是最常分离的微生物。金黄色葡萄球菌是两个重症监护病房中最常见的微生物，仅在两个脉搏血氧仪探针的内表面上分离。在脉搏血氧仪探头的内表面中，去污后仍有6个（18％; 95％CI 0.07-0.35）被污染，微生物生长减少了80％（p = 0.0001）。结论。脉搏血氧仪探头的内表面可能会成为一系列病原体的热点，有可能导致ICU感染和爆发。应强调对脉搏血氧仪探头内表面的去污。

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