Guchhait Partha, Chaudhuri Bhaskar Narayan, Das Satadal
Department of Microbiology, Peerless Hospitex Hospital and Research Center Ltd., Kolkata, West Bengal, India.
J Lab Physicians. 2023 Apr 14;15(1):131-138. doi: 10.1055/s-0043-1764476. eCollection 2023 Mar.
: Bloodstream infections (BSI) due to opportunistic microbes in the coronavirus disease 2019 (COVID-19) pandemic lead to high morbidity and mortality among hospitalized patients. Thus, it is vital to find out the risk factors of BSI and to learn the ways to mitigate it. : The aim of this study was to evaluate important risk factors of BSI due to opportunistic pathogens and to assess the role of the rigid infection control program to deal with this issue. : A prospective, cross-sectional study was performed for 6 months on 150 patients admitted in both COVID-19 and non-COVID-19 intensive care units of our hospital. BSI was confirmed by the BACTEC and Vitek 2 compact system. Prospective surveillance and environmental sampling were carried out for source tracking along with rigorous infection control measures and the outcome was analyzed. : vancomycin-resistant , and were the common opportunistic pathogens isolated from a single or paired blood sample(s) in our study. Key risk factors were prolonged intensive care unit stay, central venous access, mechanical ventilation, immune-compromised condition, and use of biologics. Reverse osmosis water and used normal saline bottles were the common environmental source of infection. Following the implementation of precise infection control measures, there was a sharp decline in BSI cases, which was not attributed to the downfall of COVID-19 cases. : Combined prospective surveillance and environmental sampling helped to find out the sources and implementation of an intensive and insistent infection control program that are needed to control opportunistic pathogens mediated BSI.
在2019冠状病毒病(COVID-19)大流行期间,由机会性微生物引起的血流感染(BSI)导致住院患者的高发病率和死亡率。因此,找出BSI的风险因素并了解减轻其影响的方法至关重要。
本研究的目的是评估由机会性病原体引起的BSI的重要风险因素,并评估严格的感染控制计划在处理这一问题中的作用。
对我院COVID-19和非COVID-19重症监护病房收治的150例患者进行了为期6个月的前瞻性横断面研究。通过BACTEC和Vitek 2紧凑型系统确认BSI。进行前瞻性监测和环境采样以追踪感染源,并采取严格的感染控制措施,然后对结果进行分析。
在我们的研究中,耐万古霉素[此处原文缺失相关细菌名称]和[此处原文缺失相关细菌名称]是从单份或成对血样中分离出的常见机会性病原体。关键风险因素包括重症监护病房住院时间延长、中心静脉置管、机械通气、免疫功能低下状态以及生物制剂的使用。反渗透水和用过的生理盐水瓶是常见的环境感染源。实施精确的感染控制措施后,BSI病例急剧下降,这并非归因于COVID-19病例的减少。
联合前瞻性监测和环境采样有助于找出感染源,并实施强化且持续的感染控制计划,以控制由机会性病原体介导的BSI。