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Zhou C, Sun L, Li H, Huang L, Liu X. Risk Factors and Mortality of Elderly Patients with Hospital-Acquired Pneumonia of Carbapenem-Resistant Klebsiella pneumoniae Infection. Infect Drug Resist 2023; 16:6767-6779. [PMID: 37881505 PMCID: PMC10595997 DOI: 10.2147/idr.s431085] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/18/2023] [Accepted: 10/14/2023] [Indexed: 10/27/2023] Open
Abstract
Purpose Hospital-acquired pneumonia (HAP) caused by carbapenem-resistant K. pneumoniae (CRKP), especially in elderly patients, results in high morbidity and mortality. Studies on risk factors, mortality, and antimicrobial susceptibility of CRKP pulmonary infection among elderly patients are lacking. Patients and Methods A retrospective case-control study was conducted from January 2019 to December 2021. The elderly inpatients (≥65 years) who were diagnosed with HAP caused by K. pneumoniae were enrolled. Clinical data were collected. Univariate and multivariate logistic regression analyses were used to identify risk factors. Propensity score matching was used to minimize the effect of potential confounding variables. Kaplan-Meier analysis was used to compare survival. Results A total of 115 patients with CRKP infection and 78 patients with carbapenem-susceptible K. pneumoniae (CSKP) infection were recruited. There were four independent risk factors for CRKP infection: history of intensive care unit (ICU) stays from hospital admission to positive respiratory specimen culture for K. pneumoniae (odds ratio (OR)=2.530), Charlson comorbidity index score ≥3 (OR = 2.420), prior exposure to carbapenems (OR = 5.280), and prior K. pneumoniae infection or colonization in the preceding 3 years (OR = 18.529). The all-cause 30-day mortality was 22.3%, the mortality of CRKP and CSKP infection was 28.7% and 12.8%, respectively. Independent risk factors for mortality included: older age (OR = 1.107), immunocompromised patients (OR = 8.632), severe pneumonia (OR = 51.244), quick Sepsis-related Organ Failure Assessment (qSOFA) score ≥2 (OR = 6.187), exposure to tigecycline before infection (OR = 24.702), and prolonged ICU stay (OR = 0.987). Thirty-day mortality was significantly lower in patients receiving ceftazidime-avibactam (CAZ-AVI) containing regimens than patients receiving polymyxin B sulfate (PB) containing regimens (P = 0.048). qSOFA score had a good prognostic effect [area under receiver operating characteristic curve (AUROC) of 0.838]. Conclusion Active screening of CRKP for the high-risk populations, especially elderly patients, is significant for early detection and successful management of CRKP infection.
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Affiliation(s)
- Chaoe Zhou
- Department of Geriatrics, Peking University First Hospital, Beijing, People’s Republic of China
| | - Liying Sun
- Department of Clinical Laboratory, Peking University First Hospital, Beijing, People’s Republic of China
| | - Haixia Li
- Department of Clinical Laboratory, Peking University First Hospital, Beijing, People’s Republic of China
| | - Lei Huang
- Department of Clinical Laboratory, Peking University First Hospital, Beijing, People’s Republic of China
| | - Xinmin Liu
- Department of Geriatrics, Peking University First Hospital, Beijing, People’s Republic of China
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Xiong CL, Wang GG, Hanafi WUR. Financial impact of nosocomial infections on surgical patients in an eastern Chinese hospital: a propensity score matching study. J Hosp Infect 2023; 139:67-73. [PMID: 37301232 DOI: 10.1016/j.jhin.2023.05.017] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/03/2023] [Revised: 04/18/2023] [Accepted: 05/17/2023] [Indexed: 06/12/2023]
Abstract
This study, conducted at Zhejiang Taizhou Hospital, China, aimed to examine the financial impact of nosocomial infections on surgical patients. A retrospective case-control study using propensity score matching was conducted over a 9-month period from January to September 2022. The study included 729 surgical patients with nosocomial infections and 2187 matched controls without infections. Medical expenses, length of hospitalization and total economic burden were compared between the two groups. The rate of nosocomial infections in surgical cases was 2.66%. The median hospitalization cost for patients with nosocomial infections was US$8220, compared with US$3294 for controls. The overall additional medical expenditure attributable to nosocomial infections amounted to US$4908. Notable median differences were observed between cases with nosocomial infections and controls in terms of total hospitalization cost, nursing services, medication, treatment, materials, test fees and blood transfusion fees. In each age group, medical costs for patients with nosocomial infections were more than twice those of controls. Additionally, hospital stays for surgical patients with nosocomial infections were, on average, 13 days longer compared with controls. These findings highlight the importance of implementing effective infection control measures in hospitals to reduce the financial burden on patients and the healthcare system.
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Affiliation(s)
- C L Xiong
- Department of Nosocomial Infection Control, Zhejiang Taizhou Hospital, Zhejiang, China
| | - G G Wang
- Department of Nosocomial Infection Control, Zhejiang Taizhou Hospital, Zhejiang, China
| | - W U-R Hanafi
- Public Health Division, Calaveras County, San Andreas, CA, USA.
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Puraswani M, Srivastav S, Aggrawal R, Soni KD, Malhotra R, Kumar S, Sagar S, Gupta A, Mathur P. Eight year study on evolution of antimicrobial resistance in an antimicrobial-naïve trauma population. Indian J Med Microbiol 2023; 44:100355. [PMID: 37356848 DOI: 10.1016/j.ijmmb.2023.01.013] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/24/2022] [Revised: 12/26/2022] [Accepted: 01/23/2023] [Indexed: 06/27/2023]
Abstract
PURPOSE Healthcare-associated infections (HAIs) are a leading cause of morbidity and mortality in low- and middle-income countries (LMICs). Moreover, the burden of HAIs is higher in ICU admitted patients. Long term studies are beneficial to evolution pattern of AMR. Therefore, this study aimed to evaluate the evolution of AMR pattern over the years in one of the ICUs of a level 1 Trauma Center. This will enable us to modify the prescribing practices according to emerging resistance patterns. METHODS This study was conducted at one of the ICU of level-1 trauma center of tertiary care hospital. The study reports the findings of the AMR surveillance from January 2012 to December 2019. Standard definitions were used to define HAI (www.hais.com). The clinical records of the patients were maintained using ASHAIN indigenous software. Outbreak analysis was done by WHONET. RESULTS From 1st January 2012-31st December 2019, 4305 isolates were obtained from 1969 patients. Most frequent occurring organism were gram negatives among which A. baumannii was common followed by K. pneumoniae, and P. aeruginosa. Retrospective analysis showed 7 outbreaks/clusters during the study period and all the outbreaks occurred from October to December in each year. The increasing trend of AMR pattern emphasizes to strengthen infection control practices and sustained AMR surveillance.
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Affiliation(s)
- Mamta Puraswani
- Department of Laboratory Medicine, JPNA Trauma Centre, All India Institute of Medical Sciences, New Delhi, India.
| | - Sharad Srivastav
- Department of Laboratory Medicine, JPNA Trauma Centre, All India Institute of Medical Sciences, New Delhi, India.
| | - Richa Aggrawal
- Department of Critical and Intensive Care, Jai Prakash Narayan Apex Trauma Centre, All India Institute of Medical Sciences, New Delhi, India.
| | - Kapil Dev Soni
- Department of Critical and Intensive Care, Jai Prakash Narayan Apex Trauma Centre, All India Institute of Medical Sciences, New Delhi, India.
| | - Rajesh Malhotra
- Department of Orthopaedics, Jai Prakash Narayan Apex Trauma Centre, All India Institute of Medical Sciences, New Delhi, India.
| | - Subodh Kumar
- Division of Trauma Surgery and Critical Care, Jai Prakash Narayan Apex Trauma Centre, All India Institute of Medical Sciences, New Delhi, India.
| | - Sushma Sagar
- Division of Trauma Surgery and Critical Care, Jai Prakash Narayan Apex Trauma Centre, All India Institute of Medical Sciences, New Delhi, India.
| | - Amit Gupta
- Division of Trauma Surgery and Critical Care, Jai Prakash Narayan Apex Trauma Centre, All India Institute of Medical Sciences, New Delhi, India.
| | - Purva Mathur
- Department of Laboratory Medicine, JPNA Trauma Centre, All India Institute of Medical Sciences, New Delhi, India.
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Hou Y, Griffin LP, Ertmer K, Bernatchez SF, Kärpänen TJ, Palka-Santini M. Effectiveness of Disinfecting Caps for Intravenous Access Points in Reducing Central Line-Associated Bloodstream Infections, Clinical Utilization, and Cost of Care During COVID-19. CLINICOECONOMICS AND OUTCOMES RESEARCH 2023; 15:477-486. [PMID: 37366386 PMCID: PMC10290837 DOI: 10.2147/ceor.s404823] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/08/2023] [Accepted: 06/13/2023] [Indexed: 06/28/2023] Open
Abstract
Purpose Intravenous (IV) access point protectors, serving as passive disinfection devices and a cover between line accesses, are available to help reduce the risk of central line-associated bloodstream infections (CLABSIs). This low-maintenance disinfection solution is particularly valuable in situations with excessive workloads. This study examined the effect of a disinfecting cap for an IV access point on CLABSI rates, hospital length of stay, and cost of care in an inpatient setting during the coronavirus disease 2019 (COVID-19) pandemic. Methods The study utilized data from the Premier Healthcare Database, focusing on 200,411 hospitalizations involving central venous catheters between January 2020 and September 2020. Among these cases, 7423 patients received a disinfecting cap, while 192,988 patients did not use any disinfecting caps and followed the standard practice of hub scrubbing. The two cohorts, Disinfecting Cap and No-Disinfecting Cap groups, were compared in terms of CLABSI rates, hospital length of stay (LOS), and hospitalization costs. The analysis accounted for baseline group differences and random clustering effects by employing a 34-variable propensity score and mixed-effect multiple regression, respectively. Results The findings demonstrated a significant 73% decrease in CLABSI rates (p= 0.0013) in the Disinfecting Cap group, with an adjusted CLABSI rate of 0.3% compared to 1.1% in the No-Disinfecting Cap group. Additionally, the Disinfecting Cap group exhibited a 0.5-day reduction in hospital stay (9.2 days versus 9.7 days; p = 0.0169) and cost savings of $6703 ($35,604 versus $42,307; p = 0.0063) per hospital stay compared to the No-Disinfecting Cap group. Conclusion This study provides real-world evidence that implementing a disinfecting cap to protect IV access points effectively reduces the risk of CLABSIs in hospitalized patients compared to standard care, ultimately optimizing the utilization of healthcare resources, particularly in situations where the healthcare system is under significant strain or overloaded.
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Affiliation(s)
| | | | - Kari Ertmer
- 3M Health Care, 3M Company, St, Paul, MN, USA
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Pathak A, Tejan N, Dubey A, Chauhan R, Fatima N, Jyoti, Singh S, Bhayana S, Sahu C. Outbreak of colistin resistant, carbapenemase ( bla NDM, bla OXA-232) producing Klebsiella pneumoniae causing blood stream infection among neonates at a tertiary care hospital in India. Front Cell Infect Microbiol 2023; 13:1051020. [PMID: 36816594 PMCID: PMC9929527 DOI: 10.3389/fcimb.2023.1051020] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/22/2022] [Accepted: 01/18/2023] [Indexed: 02/04/2023] Open
Abstract
Infections caused by multi-drug resistant Klebsiella pneumoniae are a leading cause of mortality and morbidity among hospitalized patients. In neonatal intensive care units (NICU), blood stream infections by K. pneumoniae are one of the most common nosocomial infections leading to poor clinical outcomes and prolonged hospital stays. Here, we describe an outbreak of multi-drug resistant K. pneumoniae among neonates admitted at the NICU of a large tertiary care hospital in India. The outbreak involved 5 out of 7 neonates admitted in the NICU. The antibiotic sensitivity profiles revealed that all K. pneumoniae isolates were multi-drug resistant including carbapenems and colistin. The isolates belonged to three different sequence types namely, ST-11, ST-16 and ST-101. The isolates harboured carbapenemase genes, mainly bla NDM-1, bla NDM-5 and bla OXA-232 besides extended-spectrum β-lactamases however the colistin resistance gene mcr-1, mcr-2 and mcr-3 could not be detected. Extensive environmental screening of the ward and healthcare personnel led to the isolation of K. pneumoniae ST101 from filtered incubator water, harboring bla NDM-5, bla OXA-232 and ESBL genes (bla CTX-M) but was negative for the mcr genes. Strict infection control measures were applied and the outbreak was contained. This study emphasizes that early detection of such high-risk clones of multi-drug resistant isolates, surveillance and proper infection control practices are crucial to prevent outbreaks and further spread into the community.
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Affiliation(s)
- Ashutosh Pathak
- Department of Microbiology, Sanjay Gandhi Post Graduate Institute of Medical Sciences, Lucknow, India
| | - Nidhi Tejan
- Department of Microbiology, Sanjay Gandhi Post Graduate Institute of Medical Sciences, Lucknow, India
| | - Akanksha Dubey
- Department of Microbiology, Sanjay Gandhi Post Graduate Institute of Medical Sciences, Lucknow, India
| | - Radha Chauhan
- Department of Microbiology, Sanjay Gandhi Post Graduate Institute of Medical Sciences, Lucknow, India
| | - Nida Fatima
- Department of Microbiology, Sanjay Gandhi Post Graduate Institute of Medical Sciences, Lucknow, India
| | - Jyoti
- Department of Microbiology, Sanjay Gandhi Post Graduate Institute of Medical Sciences, Lucknow, India
| | - Sushma Singh
- Department of Cardiology, Sanjay Gandhi Post Graduate Institute of Medical Sciences, Lucknow, India
| | - Sahil Bhayana
- Amity Institute of Microbial Technology, Amity University, Noida, India
| | - Chinmoy Sahu
- Department of Microbiology, Sanjay Gandhi Post Graduate Institute of Medical Sciences, Lucknow, India
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Hou Y, Griffin L, Bernatchez SF, Hommes J, Kärpänen T, Palka-Santini M. Comparative Effectiveness of 2 Chlorhexidine Gluconate-Containing Dressings in Reducing Central Line-Associated Bloodstream Infections, Hospital Stay, and Costs. INQUIRY : A JOURNAL OF MEDICAL CARE ORGANIZATION, PROVISION AND FINANCING 2023; 60:469580231214751. [PMID: 38037829 PMCID: PMC10693226 DOI: 10.1177/00469580231214751] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/02/2023] [Revised: 10/12/2023] [Accepted: 10/27/2023] [Indexed: 12/02/2023]
Abstract
Chlorhexidine gluconate (CHG)-containing dressings are recommended to prevent central line associated bloodstream infections (CLABSIs) and other catheter-related infections. This study compared the effect of 2 CHG dressings on CLABSI, cost of care, and contact dermatitis. A retrospective analysis was conducted using the Premier Healthcare Database of hospitalized patients (n = 53 149) with central venous catheters (CVCs) and receiving either a transparent CHG gel dressing (n = 14 488) or an opaque CHG sponge dressing (n = 38 661) between January 2019 and September 2020. Two cohorts (n = 14 488 each), CHG-Gel and CHG-Sponge, were matched 1:1 using a propensity score method on 33 patient and facility characteristics. CLABSI and contact dermatitis rates, hospital length of stay (LOS), and hospitalization costs were compared using mixed-effect multiple regression. This approach effectively controlled for random clustering effects across hospitals and patients' Diagnosis-Related Group (DRG) classifications. CHG gel dressings were associated with a 41% decrease in CLABSI rates (P = .0008) compared to CHG sponge dressings (0.35%vs 0.60%). A 0.4-day shorter LOS (9.53vs 9.90 days, P = .0001) and a cost saving of $3576 per hospital stay ($40 197 vs $43 774, P = .0179) was observed with CHG gel dressing use. There was no statistically significant difference in contact dermatitis rates (P = .7854) between the CHG-Gel and CHG-Sponge cohorts. The findings of this study suggest that the use of CHG gel dressings may be more effective in reducing the risk of CLABSIs and associated clinical costs compared to CHG sponge dressings in hospitalized patients. Moreover, there appears to be no significant discrepancy in contact dermatitis rates between CHG gel and CHG sponge dressings. Healthcare providers may consider using CHG gel dressings as a standard practice for patients with CVCs to reduce the risk of infections and improve patient outcomes.
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Affiliation(s)
| | - Leah Griffin
- 3M Health Care, 3M Company, San Antonio, TX, USA
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Thiagarajan K. Pandemic panic and indiscriminate prescriptions drive India's antimicrobial resistance. BMJ 2022; 376:o596. [PMID: 35260412 DOI: 10.1136/bmj.o596] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
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Healthcare-associated infections and antimicrobial use in surgical wards of a large urban central hospital in Blantyre, Malawi: a point prevalence survey. Infect Prev Pract 2021; 3:100163. [PMID: 34430842 PMCID: PMC8367802 DOI: 10.1016/j.infpip.2021.100163] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/05/2021] [Accepted: 07/16/2021] [Indexed: 01/25/2023] Open
Abstract
Background There are limited data on healthcare-associated infections (HAI) from African countries like Malawi. Aim We undertook a point prevalence survey of HAI and antimicrobial use in the surgery department of Queen Elizabeth Central Hospital (QECH) in Malawi and ascertained the associated risk factors for HAI. Methods A cross-sectional point prevalence survey (PPS) was carried out in the surgery department of QECH. The European Centre for Disease Prevention and Control PPS protocol version 5.3 was adapted to our setting and used as a data collection tool. Findings 105 patients were included in the analysis; median age was 34 (IQR: 24-47) years and 55.2% patients were male. Point prevalence of HAI was 11.4% (n=12/105) (95% CI: 6.0%-19.1%), including four surgical site infections, four urinary tract infections, three bloodstream infections and one bone/joint infection. We identified the following risk factors for HAI; length-of-stay between 8 and 14 days (OR=14.4, 95% CI: 1.65-124.7, p=0.0143), presence of indwelling urinary catheter (OR=8.3, 95% CI: 2.24-30.70, p=0.003) and history of surgery in the past 30 days (OR=5.11, 95% CI: 1.46-17.83, p=0.011). 29/105 patients (27.6%) were prescribed antimicrobials, most commonly the 3rd-generation cephalosporin, ceftriaxone (n=15). Conclusion The prevalence rates of HAI and antimicrobial use in surgery wards at QECH are relatively high. Hospital infection prevention and control measures need to be strengthened to reduce the burden of HAI at QECH.
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Zhong X, Wang DL, Xiao LH. Research on the economic loss of hospital-acquired pneumonia caused by Klebsiella pneumonia base on propensity score matching. Medicine (Baltimore) 2021; 100:e25440. [PMID: 33847646 PMCID: PMC8052027 DOI: 10.1097/md.0000000000025440] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/03/2020] [Accepted: 02/27/2021] [Indexed: 01/04/2023] Open
Abstract
BACKGROUND Hospital-acquired pneumonia (HAP) caused by Klebsiella pneumonia (KP) is a common nosocomial infection (NI). However, the reports on the economic burden of hospital-acquired pneumonia caused by Klebsiella pneumonia (KP-HAP) were scarce. The study aims to study the direct economic loss caused by KP-HAP with the method of propensity score matching (PSM) to provide a basis for the cost accounting of NI and provide references for the formulation of infection control measures. METHODS A retrospective investigation was conducted on the hospitalization information of all patients discharged from a tertiary group hospital in Shenzhen, Guangdong province, China, from June 2016 to August 2019. According to the inclusion and exclusion criteria, patients were divided into the HAP group and noninfection group, the extended-spectrum beta-lactamases (ESBLs) positive KP infection group, and the ESBLs-negative KP infection group. After the baselines of each group were balanced with the PSM, length of stay (LOS) and hospital cost of each group were compared. RESULTS After the PSM, there were no differences in the baselines of each group. Compared with the noninfection group, the median LOS in the KP-HAP group increased by 15 days (2.14 times), and the median hospital costs increased by 7329 yuan (0.89 times). Compared with the ESBLs-negative KP-HAP group, the median LOS in the ESBLs-positive KP-HAP group increased by 7.5 days (0.39 times), and the median hospital costs increased by 22,424 yuan (1.90 times). CONCLUSION KP-HAP prolonged LOS and increased hospital costs, and HAP caused by ESBLs-positive KP had more economic losses than ESBLs-negative, which deserves our attention and should be controlled by practical measures.
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Affiliation(s)
- Xiao Zhong
- Department of Nosocomial Infection, University of Chinese Academy of Sciences, Shenzhen Hospital
| | - Dong-Li Wang
- Inspection Center, Guangming District Center for Disease Control and Prevention, Shenzhen, Guangdong, China
| | - Li-Hua Xiao
- Department of Nosocomial Infection, University of Chinese Academy of Sciences, Shenzhen Hospital
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10
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Huang G, Huang Q, Zhang G, Jiang H, Lin Z. Point-prevalence surveys of hospital-acquired infections in a Chinese cancer hospital: From 2014 to 2018. J Infect Public Health 2020; 13:1981-1987. [PMID: 32280033 DOI: 10.1016/j.jiph.2020.03.003] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/30/2019] [Revised: 02/27/2020] [Accepted: 03/08/2020] [Indexed: 12/24/2022] Open
Abstract
BACKGROUND Both hospital-acquired infection (HAI) and cancer represents major health concerns worldwide, but there is a paucity of data describing HAI in Chinese cancer patients. The objective of this study is to demonstrate the prevalence, causative agents, antimicrobial use and risk factors for HAI in a cancer hospital in Southwestern China. METHODS We use the criteria of the Ministry of Health of the People's Republic of China to define hospital-acquired infections. One-day cross-sectional surveys were annually conducted from 2014 to 2018. Trained staff collected hospital-acquired infections, antimicrobial use and clinical characteristics data of inpatients. Multivariate logistic regression was used to determine the potential risk factors associated with HAIs. RESULTS Of the 6717 patients surveyed, there were 140 patients (2.1%, 95% confidence interval, 1.7-2.4%) with 144 distinct HAIs. Lower respiratory tract infections (47, 32.6%) and surgical-site infections (29, 20.1%) were the most common HAIs. Escherichia coli was the most common pathogen (29.6%). Risk factors for HAI included younger age (<18 years) or older age (>65 years), hospitalization in the intensive care unit, presence of central catheter and undergoing surgery in the previous 30 days. The overall prevalence of patients receiving antimicrobial agents was 15.2%. CONCLUSION To control hospital-acquired infections in cancer patients, surveillance and prevention strategies to infections associated with central catheters or related to surgery should be augmented.
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Affiliation(s)
- Guyu Huang
- Department of Hospital Infection Prevention and Control, Affiliated Cancer Hospital of Guangxi Medical University, Nanning, China
| | - Qianqian Huang
- Department of Hospital Infection Prevention and Control, Affiliated Cancer Hospital of Guangxi Medical University, Nanning, China
| | - Guoqiang Zhang
- Department of Hospital Infection Prevention and Control, Affiliated Cancer Hospital of Guangxi Medical University, Nanning, China
| | - Hu Jiang
- Department of Hospital Infection Prevention and Control, Affiliated Cancer Hospital of Guangxi Medical University, Nanning, China
| | - Zhen Lin
- Department of Hospital Infection Prevention and Control, Affiliated Cancer Hospital of Guangxi Medical University, Nanning, China.
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Zhou Q, Fan L, Lai X, Tan L, Zhang X. Estimating extra length of stay and risk factors of mortality attributable to healthcare-associated infection at a Chinese university hospital: a multi-state model. BMC Infect Dis 2019; 19:975. [PMID: 31747887 PMCID: PMC6864951 DOI: 10.1186/s12879-019-4474-5] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/27/2019] [Accepted: 09/13/2019] [Indexed: 11/23/2022] Open
Abstract
Background The current evidence of extra length of stay (LOS) attributable to healthcare-associated infection (HCAI) scarcely takes time-dependent bias into consideration. Plus, limited evidences were from developing countries. We aim to estimate the extra LOS and risk factors of mortality attributable to HCAI for inpatients. Methods Multi-state model (MSM) was adopted to estimate the extra LOS attributable to HCAI of each type and subgroup. COX regression model was used to examine the risk of mortality. Results A total of 51,691 inpatients were included and 1709 (3.31%) among them developed HCAI. Lower respiratory tract infection and Acinetobacter baumannii were the most prevalent HCAI and causative pathogen in surveyed institute. Generally, the expected extra LOS attributable to HCAI was 2.56 days (95% confidence interval: 2.54–2.61). Patients below 65 had extra LOS attributable to HCAI longer about 2 days than those above. The extra LOS attributable to HCAI of male patients was 1.33 days longer than female. Meanwhile, age above 65 years old and HCAI were the risk factors of mortality for inpatients. Conclusions HCAI contributes to an increase in extra LOS of inpatients in China. The effect of HCAI on extra LOS is different among subgroups, with the age below 65, male and medicine department more sensitive.
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Affiliation(s)
- Qian Zhou
- School of Medicine and Health Management, Tongji Medical College, Huazhong University of Science and Technology, Wuhan City, Hubei Province, People's Republic of China
| | - Lili Fan
- School of Medicine and Health Management, Tongji Medical College, Huazhong University of Science and Technology, Wuhan City, Hubei Province, People's Republic of China
| | - Xiaoquan Lai
- Department of Nosocomial Infection, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan City, Hubei Province, People's Republic of China
| | - Li Tan
- Department of Nosocomial Infection, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan City, Hubei Province, People's Republic of China
| | - Xinping Zhang
- School of Medicine and Health Management, Tongji Medical College, Huazhong University of Science and Technology, Wuhan City, Hubei Province, People's Republic of China.
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Zhang Y, Zhong ZF, Chen SX, Zhou DR, Li ZK, Meng Y, Zhou JF, Hou TY. Prevalence of healthcare-associated infections and antimicrobial use in China: Results from the 2018 point prevalence survey in 189 hospitals in Guangdong Province. Int J Infect Dis 2019; 89:179-184. [PMID: 31580939 DOI: 10.1016/j.ijid.2019.09.021] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/20/2019] [Revised: 09/24/2019] [Accepted: 09/25/2019] [Indexed: 11/17/2022] Open
Abstract
BACKGROUND Limited data on healthcare-associated infections (HAIs) are available from the developing world, thus a point prevalence survey was conducted to determine the prevalence of HAIs and antimicrobial use in Guangdong Province, China. METHODS A standardized methodology for point prevalence surveys on HAIs and antimicrobial use has been developed by the Chinese Nosocomial Infection Control and Quality Improvement Center. The prevalence of HAIs, antimicrobial use, and baseline hospital-level variables were collected in 189 hospitals from June 2017 to May 2018. RESULTS Of 5 868 147 patients, 72 976 had one or more HAIs (1.24%), with 82 700 distinct HAIs. The prevalence rates of device-associated infections, including ventilator-associated pneumonia, catheter-associated urinary tract infection, and central line-associated bloodstream infection were 7.92, 2.06, and 0.63 per 1000 catheter-days, respectively. A total of 10 591 (0.18%) HAIs caused by multidrug-resistant organisms were identified. Carbapenem non-susceptibility rates were highest in Acinetobacter species (53.86%) and Pseudomonas aeruginosa (21.60%). Forty-six percent (2 712 258/5 868 147) of inpatients were receiving at least one antimicrobial during this survey. CONCLUSIONS This survey indicated the relatively lower prevalence of HAIs but higher antimicrobial using in Guangdong Province compared with other mid to low-income and high-income countries. Further studies are warranted to elucidate which HAI-related indicators are the best measures of HAI performance and thus allow improvements leading to better patient outcomes.
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Affiliation(s)
- Yu Zhang
- Department of Laboratory, Guangdong Provincial People's Hospital and Guangdong Academy of Medicine Sciences, Guangzhou, China; Guangdong Nosocomial Infection Control and Quality Improvement Centre, Guangzhou, Guangdong, China
| | - Zhen-Feng Zhong
- Guangdong Nosocomial Infection Control and Quality Improvement Centre, Guangzhou, Guangdong, China; Department of Infection Prevention and Control, Guangdong Zhongshan City People's Hospital, Zhongshan, China
| | - Shu-Xian Chen
- Guangdong Nosocomial Infection Control and Quality Improvement Centre, Guangzhou, Guangdong, China; Department of Infection Prevention and Control, Guangzhou First People's Hospital, Guangzhou, China
| | - Dian-Rong Zhou
- Department of Laboratory, Guangdong Provincial People's Hospital and Guangdong Academy of Medicine Sciences, Guangzhou, China; Guangdong Nosocomial Infection Control and Quality Improvement Centre, Guangzhou, Guangdong, China
| | - Zheng-Kang Li
- Department of Laboratory, Guangdong Provincial People's Hospital and Guangdong Academy of Medicine Sciences, Guangzhou, China
| | - Yue Meng
- Department of Laboratory, Guangdong Provincial People's Hospital and Guangdong Academy of Medicine Sciences, Guangzhou, China
| | - Jing-Fang Zhou
- Department of Laboratory, Guangdong Provincial People's Hospital and Guangdong Academy of Medicine Sciences, Guangzhou, China
| | - Tie-Ying Hou
- Department of Laboratory, Guangdong Provincial People's Hospital and Guangdong Academy of Medicine Sciences, Guangzhou, China; Guangdong Nosocomial Infection Control and Quality Improvement Centre, Guangzhou, Guangdong, China.
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Elevated Blood Urea Nitrogen-to-Serum Albumin Ratio as a Factor That Negatively Affects the Mortality of Patients with Hospital-Acquired Pneumonia. CANADIAN JOURNAL OF INFECTIOUS DISEASES & MEDICAL MICROBIOLOGY 2019; 2019:1547405. [PMID: 31316681 PMCID: PMC6604473 DOI: 10.1155/2019/1547405] [Citation(s) in RCA: 31] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 01/20/2019] [Revised: 05/22/2019] [Accepted: 06/03/2019] [Indexed: 02/06/2023]
Abstract
This study aimed to evaluate the factors that affect 30-day mortality of patients with HAP. The data used in this study were collected from all HAP occurred in our hospital between January 2014 and December 2017. A total of 1158 cases were included. 150 (13.0%) of whom died within 30 days. This reported mortality identified by the univariate Cox regression analysis is found to have been affected by the following factors: age greater than 70 years, presence of diabetes mellitus and chronic obstructive pulmonary disease, gastric tube intubation, administration of proton-pump inhibitor, blood albumin level less than 30 g/l, elevated neutrophil-to-lymphocyte ratio, antibiotics therapy in the preceding 90 days, intensive care unit (ICU) admission, blood lymphocyte count less than 0.8 × 109/L, elevated blood urea nitrogen/albumin (BUN/ALB) level, and presence of multidrug-resistant (MDR) pathogens. In the second multivariate analysis, administration of proton-pump inhibitor, administration of antibiotics in the preceding 90 days, ICU admission, blood lymphocyte count less than 0.8 × 109/L, elevated BUN/ALB level, and presence of MDR pathogens were still associated with 30-day mortality. The area under the receiver operating characteristic curves in the BUN/ALB predicting 30-day mortality due to HAP was 0.685. A high BUN/ALB was significantly associated with a worse survival than a low BUN/ALB (P < 0.001). Therefore, an elevated BUN/ALB level is a risk factor for mortality on patients with HAP.
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Saleem Z, Godman B, Hassali MA, Hashmi FK, Azhar F, Rehman IU. Point prevalence surveys of health-care-associated infections: a systematic review. Pathog Glob Health 2019; 113:191-205. [PMID: 31215326 PMCID: PMC6758614 DOI: 10.1080/20477724.2019.1632070] [Citation(s) in RCA: 72] [Impact Index Per Article: 14.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022] Open
Abstract
Health-care-associated infections (HAIs) are considered a serious public health issues that contribute substantially to the global burden of mortality and morbidity with respect to infectious diseases. The aim is to assess the burden of health-care-associated infections by collation of available data from published point prevalence surveys (PPS) on HAIs to give future guidance. Study protocol and methodology were designed according to preferred reporting items for systematic reviews and meta-analysis (PRISMA) guidelines. Published research papers that conducted a point prevalence survey of HAIs in hospital settings by following the structured survey methodology employed by European Centre of Disease Prevention and Control (ECDC) were included. Of 1212 articles, 67 studies were included in the final analysis conducted across different countries. Overall, 35 studies were conducted in Europe, 21 in Asia, 9 in America, and 2 in Africa. The highest prevalence of HAIs was recorded in a study conducted in adult ICU settings of 75 regions of Europe (51.3%). The majority of the studies included HAI data on urinary tract infections, respiratory tract infections, and bloodstream infections. Klebsiella pneumonia, Pseudomonas aeruginosa and E. coli were the most frequent pathogens responsible for HAIs. PPS is an useful tool to quantify HAIs and provides a robust baseline data for policymakers. However, a standardize surveillance method is required. In order to minimize the burden of HAIs, infection prevention and control programs and antibiotic stewardship may be effective strategies to minimize the risk of HAIs.
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Affiliation(s)
- Zikria Saleem
- School of Pharmaceutical Sciences, Universiti Sains Malaysia, George Town, Malaysia
- Rashid Latif College of Pharmacy, Lahore, Pakistan
| | - Brian Godman
- Department of Clinical Pharmacology, Karolinska Institute, Stockholm, Sweden
- Strathclyde Institute of Pharmacy and Biomedical Sciences, Strathclyde University, Glasgow, UK
- Health Economics Centre, University of Liverpool Management School, Liverpool, UK
| | - Mohamed Azmi Hassali
- School of Pharmaceutical Sciences, Universiti Sains Malaysia, George Town, Malaysia
| | | | - Faiza Azhar
- University College of Pharmacy, University of the Punjab, Lahore, Pakistan
| | - Inayat Ur Rehman
- School of Pharmacy, Monash University Malaysia, Kuala Selangor, Malaysia
- Department of Pharmacy, Abdul Wali Khan University Mardan, Mardan, Pakistan
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Kosgey JC, Jia L, Fang Y, Yang J, Gao L, Wang J, Nyamao R, Cheteu M, Tong D, Wekesa V, Vasilyeva N, Zhang F. Probiotics as antifungal agents: Experimental confirmation and future prospects. J Microbiol Methods 2019; 162:28-37. [PMID: 31071354 DOI: 10.1016/j.mimet.2019.05.001] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/14/2019] [Revised: 04/30/2019] [Accepted: 05/02/2019] [Indexed: 12/13/2022]
Abstract
Fungal burden throughout the world is very high and it keeps escalating due to increasing numbers of immunocompromised individuals. In contrast, the drugs used in management of fungal infections are so few some with high toxicity. Furthermore, highly resistant fungal pathogens are emerging for example Candida auris, Candida glabrata, Candida gullemondii and Aspergillus species among others. Thus now, more than ever, there is a need for combined efforts and an all round search for possible solutions to curb these problems. Therefore, the role of probiotics in management of fungal infections is indispensable. In fact, the antimicrobial activity of probiotics has been screened with promising results against microbial pathogens. Although, recent reports indicated that probiotics may also contribute to protect against fungal infections, the research done in checking antifungal activity of probiotics has used varied technology. This calls for harmonization of the methods used to screen and confirm the antimicrobial activity of probiotics and other candidate microorganisms. We therefore sought to address issues of disparity in probiotic research and their outcomes. Thus this paper is in order as it comprehensively reviews' publications, provides a summary of the methods and future prospects of probiotics as antifungal agents.
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Affiliation(s)
- Janet Cheruiyot Kosgey
- Department of Microbiology, Harbin Medical University, Harbin 150081, China; WU Lien-Teh Institute, Harbin Medical University, Harbin 150081, China; School of biological and life sciences, Technical University of Kenya, 52428-00200, Kenya
| | - Lina Jia
- Department of Microbiology, Harbin Medical University, Harbin 150081, China; WU Lien-Teh Institute, Harbin Medical University, Harbin 150081, China
| | - Yong Fang
- Department of Microbiology, Harbin Medical University, Harbin 150081, China; WU Lien-Teh Institute, Harbin Medical University, Harbin 150081, China
| | - Jianxun Yang
- WU Lien-Teh Institute, Harbin Medical University, Harbin 150081, China; Department of Dermatology, The 2nd Hospital of Harbin Medical University, Harbin 150081, China
| | - Lei Gao
- Department of Microbiology, Harbin Medical University, Harbin 150081, China; Electron Microscopy Center, Basic Medical Science College, Harbin Medical University, China
| | - Jielin Wang
- Department of Microbiology, Harbin Medical University, Harbin 150081, China
| | - Rose Nyamao
- Department of Microbiology, Harbin Medical University, Harbin 150081, China; WU Lien-Teh Institute, Harbin Medical University, Harbin 150081, China
| | - Martin Cheteu
- Department of Microbiology, Harbin Medical University, Harbin 150081, China; WU Lien-Teh Institute, Harbin Medical University, Harbin 150081, China
| | - Dandan Tong
- Department of Microbiology, Harbin Medical University, Harbin 150081, China
| | - Vitalis Wekesa
- School of biological and life sciences, Technical University of Kenya, 52428-00200, Kenya; Flamingo Horticulture, Dudutech Division, P.O Box 1927, 20117, Naivasha, Kenya
| | - Natalia Vasilyeva
- Kashkin Research Institute of Medical Mycology, Department of Microbiology, North-Western State Medical University named after Machnikov, Saint Petersburg, Russia
| | - Fengmin Zhang
- Department of Microbiology, Harbin Medical University, Harbin 150081, China; WU Lien-Teh Institute, Harbin Medical University, Harbin 150081, China.
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Feng DY, Zhou YQ, Zou XL, Zhou M, Zhu JX, Wang YH, Zhang TT. Differences in microbial etiology between hospital-acquired pneumonia and ventilator-associated pneumonia: a single-center retrospective study in Guang Zhou. Infect Drug Resist 2019; 12:993-1000. [PMID: 31118705 PMCID: PMC6503191 DOI: 10.2147/idr.s204671] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/09/2019] [Accepted: 04/09/2019] [Indexed: 12/16/2022] Open
Abstract
Purpose: Nosocomial pneumonia is a common nosocomial infection that includes hospital-acquired pneumonia (HAP) and ventilator-associated pneumonia(VAP). It is an important cause of morbidity and mortality in hospitalized patients. This study aimed to evaluate the differences in microbial etiology and outcomes between HAP and VAP, particularly in related risk factors of multidrug-resistant organism (MDRO) causing HAP and VAP. Patients and methods: This single-center retrospective, observational study included patients with HAP/VAP. Clinical and epidemiological data of nosocomial pneumonia confirmed by microbial etiology that occurred in the Third Affiliated Hospital of Sun Yat-sen University, China, from January 2014 to December 2017 were obtained. Results: A total of 313 HAP cases and 106 VAP cases were included. The leading pathogens of HAP and VAP were similar, including Acinetobacter baumannii, Pseudomonas aeruginosa, and Klebsiella pneumoniae. Antimicrobial susceptibility of the pathogens was low, and P. aeruginosa in VAP was less susceptible. In the multivariate logistic regression analysis, the risk factors associated with MDRO-HAP were chronic obstructive pulmonary disease, antibiotic therapy in the preceding 90 days, and prior endotracheal tracheostomy. The risk factor of MDRO-VAP was ≥5 days of hospitalization. The 30-day mortality rates of HAP and VAP were 18.5% and 42.5%. Conclusion: The leading pathogens were similar in both HAP and VAP, and antimicrobial susceptibility of the pathogens was low. The risk factors associated with MDRO infection in HAP and VAP have significant variability; hence, attention should be paid to improve prognosis. VAP was associated with poorer outcomes compared with HAP.
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Affiliation(s)
- Ding-Yun Feng
- Department of Pulmonary and Critical Care Medicine, Third Affiliated Hospital of Sun Yat-sen University, Institute of Respiratory Diseases of Sun Yat-Sen University, Guangzhou, People's Republic of China
| | - Yu-Qi Zhou
- Department of Pulmonary and Critical Care Medicine, Third Affiliated Hospital of Sun Yat-sen University, Institute of Respiratory Diseases of Sun Yat-Sen University, Guangzhou, People's Republic of China
| | - Xiao-Ling Zou
- Department of Pulmonary and Critical Care Medicine, Third Affiliated Hospital of Sun Yat-sen University, Institute of Respiratory Diseases of Sun Yat-Sen University, Guangzhou, People's Republic of China
| | - Mi Zhou
- Department of Surgery Intensive Care Unit, Third Affiliated Hospital of Sun Yat-sen University, Guangzhou, People's Republic of China
| | - Jia-Xin Zhu
- Department of Pulmonary and Critical Care Medicine, Third Affiliated Hospital of Sun Yat-sen University, Institute of Respiratory Diseases of Sun Yat-Sen University, Guangzhou, People's Republic of China
| | - Yan-Hong Wang
- Department of Pulmonary and Critical Care Medicine, Third Affiliated Hospital of Sun Yat-sen University, Institute of Respiratory Diseases of Sun Yat-Sen University, Guangzhou, People's Republic of China
| | - Tian-Tuo Zhang
- Department of Pulmonary and Critical Care Medicine, Third Affiliated Hospital of Sun Yat-sen University, Institute of Respiratory Diseases of Sun Yat-Sen University, Guangzhou, People's Republic of China
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Factors influencing mortality in hospital-acquired pneumonia caused by Gram-negative bacteria in China. J Infect Public Health 2019; 12:630-633. [PMID: 30824328 DOI: 10.1016/j.jiph.2019.02.014] [Citation(s) in RCA: 17] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/11/2018] [Revised: 01/17/2019] [Accepted: 02/06/2019] [Indexed: 11/22/2022] Open
Abstract
BACKGROUND Hospital-acquired pneumonia (HAP) remains an important cause of morbidity and mortality despite advances in antimicrobial therapy. The emergence of Gram-negative bacteria (GNB) is of major concern. The objective of this study was to describe the epidemiology, microbiology, and predictors of infection-related 30-day mortality in HAP with GNB. METHODS We performed a retrospective, single-center analysis of HAP patients with GNB occurring from January 2014 and December 2017. Univariate and multivariate analyses were performed to identify the risk factors for mortality. RESULTS During the observational period, there were 1472 cases of HAP; 314 cases were bacterial culture-positive, 269 cases were caused by GNB, with a predominance of Acinetobacter baumannii and Pseudomonas aeruginosa. The mortality related to GNB was 14.5% (39 deaths).In the multivariate logistic regression analysis, the risk factors for mortality were age >70 years, intensive care unit (ICU) admission, blood lymphocyte count < 0.8 × 109/L, multidrug-resistant Gram-negative bacteria(MDR-GNB) infection, and elevation of blood urea nitrogen(BUN) level. We identified these factors as significant predictors of GNB related mortality; the area under the receiver operating characteristic (ROC) curves was 0.836. CONCLUSION The results provided can help clinicians in identifying individuals who are at risk of infection-related 30-day mortality in HAP with GNB.
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The Prevalence of Healthcare-Associated Infections in Mainland China: A Systematic Review and Meta-analysis. Infect Control Hosp Epidemiol 2018; 39:701-709. [DOI: 10.1017/ice.2018.60] [Citation(s) in RCA: 35] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
Abstract
OBJECTIVETo assess the prevalence of healthcare-associated infections (HAIs) in mainland China.DESIGNSystematic review and meta-analysis.SETTINGAdults and children from secondary and tertiary acute-care hospitals in mainland China.METHODSWe searched PubMed, the China National Knowledge Infrastructure, and Wan Fang for multicenter point-prevalence surveys of acute-care hospitals in mainland China from January 2006 to August 2016. All reports related to HAI, using a point-prevalence methodology and published either in English or Chinese were eligible.RESULTSIn total, 3,021 publications were identified; 115 were eligible for quality assessment and data abstraction. The weighted HAI prevalence (95% confidence interval [CI]) overall, in general hospitals, children’s hospitals, maternal and child health hospitals, and oncology hospitals were 3.12% (95% CI, 2.94%–3.29%), 3.02% (95% CI, 2.79%–3.26%), 4.43% (95% CI, 3.39%–5.47%), 1.88% (95% CI, 1.47%–2.29%), and 3.96% (95% CI, 3.12%–4.79%), respectively. In general hospitals, prevalence was highest in adult intensive care units (26.07%; 95% CI, 23.03%–29.12%), followed by surgery (3.26%; 95% CI, 2.96%–3.57%), and internal medicine (3.06%; 95% CI, 2.67%–3.46%). Overall, lower respiratory tract infection was the most frequent HAI (24,185, 47.28%), followed by urinary tract infection (5,773, 11.29%) and upper respiratory tract infection (5,194, 10.15%). Gram-negative bacilli were the most frequently isolated pathogens, and Pseudomonas aeruginosa (3,395, 14.91%), and Escherichia coli (2,918, 12.82%) were the most common single microorganisms.CONCLUSIONSThis study is the largest systematic review on the prevalence of HAI in mainland China. These results provide a benchmark for future PPSs and a reference for infection prevention and control strategies in mainland China.Infect Control Hosp Epidemiol 2018;39:701–709
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Hospital-acquired lower respiratory tract infections among high risk hospitalized patients in a tertiary care teaching hospital in China: An economic burden analysis. J Infect Public Health 2017; 11:507-513. [PMID: 29113779 DOI: 10.1016/j.jiph.2017.10.003] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/14/2017] [Revised: 10/07/2017] [Accepted: 10/12/2017] [Indexed: 11/23/2022] Open
Abstract
BACKGROUND Data on the economic burden of hospital-acquired lower respiratory tract infection (LRTI) among high risk hospitalized patients are lacking in China. This study aims to fill this knowledge gap. METHODS We used a prospective matched cohort design, comparing patients with LRTIs and 1:1 matched patients without LRTIs. Study period was from January 2013 to December 2015 analyzing inpatients from high risk wards - intensive care unit (ICU), dialysis, hematology, etc. - in a tertiary hospital. Hospital information system and hospital infection surveillance system were applied to extract necessary information. The primary outcome was incidence of hospital-acquired LRTIs, and the secondary was economic burden outcomes, including incremental medical costs and prolonged length of stay (LOS). Wilcoxon's signed rank test was used to explore the differences in the economic burden. RESULTS Among 5990 hospital visitors over the period of time, 895 (14.94%) had hospital-acquired LRTIs. We analyzed 340 patients with LRTIs and 340 respective controls without infections. The median hospital costs for patients with ICU-acquired LRTIs were significantly higher than those without LRTIs in other wards ($12,301.17 vs. $4674.64, P<0.01). The average attributable cost per patient was $2853.93 ($6916.48 vs. $4062.55, P<0.01). Patients from hematology department had the longest LOS, at 15days (25days vs. 10 days, P<0.01). An LRTI led to an attributable increase in LOS by 8days on average (P<0.01). Western medicine, treatment and laboratory test were the dominant contributors to the growth in overall medical costs in hospital-acquired LRTIs. CONCLUSIONS Hospital-acquired LRTI imposed considerable economic burden on patients hospitalized in high risk wards in China. This study provides the first data for economic evaluation of LRTI, highlighting the urgent need to establish targeted preventive strategies to minimize the occurrence of this complication to reduce economic burden.
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20
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Multidrug Resistant Enteric Bacterial Pathogens in a Psychiatric Hospital in Ghana: Implications for Control of Nosocomial Infections. Int J Microbiol 2017; 2017:9509087. [PMID: 29038662 PMCID: PMC5606046 DOI: 10.1155/2017/9509087] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/24/2017] [Accepted: 08/01/2017] [Indexed: 01/24/2023] Open
Abstract
Enteric bacteria are commonly implicated in hospital-acquired or nosocomial infections. In Ghana, these infections constitute an important public health problem but little is known about their contribution to antibiotic resistance. The aim of the study was to determine the extent and pattern of antibiotic resistance of enteric bacteria isolated from patients and environmental sources at the Accra Psychiatric Hospital. A total of 265 samples were collected from the study site including 142 stool and 82 urine samples from patients, 7 swab samples of door handle, and 3 samples of drinking water. Enteric bacteria were isolated using standard microbiological methods. Antibiograms of the isolates were determined using the disc diffusion method. Overall, 232 enteric bacteria were isolated. Escherichia coli was the most common (38.3%), followed by Proteus (19.8%), Klebsiella (17.7%), Citrobacter (14.7%), Morganella (8.2%), and Pseudomonas (1.3%). All isolates were resistant to ampicillin but sensitive to cefotaxime. The resistance ranged from 15.5% to 84.5%. Multidrug resistance was most prevalent (100%) among isolates of Proteus and Morganella and least prevalent among isolates of Pseudomonas (33.3%). Multidrug resistance among enteric bacteria at the study hospital is high and hence there is a need for screening before therapy to ensure prudent use of antibiotics.
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Wang J, Hu J, Harbarth S, Pittet D, Zhou M, Zingg W. Burden of healthcare-associated infections in China: results of the 2015 point prevalence survey in Dong Guan City. J Hosp Infect 2017; 96:132-138. [PMID: 28325579 DOI: 10.1016/j.jhin.2017.02.014] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/25/2016] [Accepted: 02/12/2017] [Indexed: 11/27/2022]
Abstract
BACKGROUND Healthcare-associated infections (HCAIs) are a major health threat. There are few data about HCAI and antibiotic use in the People's Republic of China in the English literature. AIM To describe and discuss the prevalence of HCAI and antibiotic use from the 2015 point prevalence survey (PPS) in Dong Guan City. METHODS In 2015, the Dong Guan (City) Nosocomial Infection Control and Quality Improvement Centre organized its yearly PPS in the secondary and tertiary care hospitals of Dong Guan City. The survey was performed on one single calendar day. FINDINGS Thirty-seven secondary and 14 tertiary care hospitals assessed 9679 and 11,641 patients, respectively. A total of 616 patients had 681 HCAIs. The pooled HCAI prevalence (95% confidence interval) in secondary care, tertiary care, and all hospitals together was 2.3% (2.0-2.6), 3.4% (3.0-3.7), and 2.9% (2.6-3.1), respectively. Lower respiratory tract infection (LRTI), urinary tract infection (UTI), surgical site infection (SSI), and bloodstream infection together accounted for 73.1% of HCAIs. LRTI was the most frequently diagnosed HCAI (35.5%), followed by UTI (17.0%), and SSI (15.1%). Gram-negative bacteria were most frequently isolated (68.1%), followed by Gram-positive bacteria (19.3%), and fungi (10.9%). Escherichia coli was the most frequent pathogen (14.8%), and Acinetobacter baumannii accounted for 10.9%. A total of 34.8% of the patients received one or more antimicrobials. CONCLUSION The pooled prevalence is in the range of other recent Chinese studies, but lower compared to previous reports in Europe, and the USA. The use of antimicrobials for therapeutic purposes is similar to that in Europe, but lower than previous Chinese reports, and lower than in the USA.
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Affiliation(s)
- J Wang
- Infection Control Program and WHO Collaborating Centre on Patient Safety, University of Geneva Hospitals and Faculty of Medicine, Geneva, Switzerland; Department of Infection Control, Dong Guan Hospital of Traditional Chinese Medicine, Dong Guan City, Guang Dong Province, China; Institute of Global Health, Faculty of Medicine, University of Geneva, Geneva, Switzerland
| | - J Hu
- Department Infection Control, Dong Guan Tung Wah Hospital, Dong Guan City, Guang Dong Province, China; Dongguan Nosocomial Infection Control and Quality Improvement Centre, Dong Guan City, Guang Dong Province, China
| | - S Harbarth
- Infection Control Program and WHO Collaborating Centre on Patient Safety, University of Geneva Hospitals and Faculty of Medicine, Geneva, Switzerland
| | - D Pittet
- Infection Control Program and WHO Collaborating Centre on Patient Safety, University of Geneva Hospitals and Faculty of Medicine, Geneva, Switzerland
| | - M Zhou
- Department Infection Control, Dong Guan Tung Wah Hospital, Dong Guan City, Guang Dong Province, China; Dongguan Nosocomial Infection Control and Quality Improvement Centre, Dong Guan City, Guang Dong Province, China
| | - W Zingg
- Infection Control Program and WHO Collaborating Centre on Patient Safety, University of Geneva Hospitals and Faculty of Medicine, Geneva, Switzerland; Imperial College London, London, UK.
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Xu X, Yang X, Li S, Luo M, Qing Y, Zhou X, Xue J, Qiu J, Li Y. Risk factors of lower respiratory tract infection in patients after tracheal intubation under general anesthesia in the Chinese health care system: A meta-analysis. Am J Infect Control 2016; 44:e215-e220. [PMID: 27614709 DOI: 10.1016/j.ajic.2016.07.010] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/31/2016] [Revised: 07/05/2016] [Accepted: 07/05/2016] [Indexed: 11/16/2022]
Abstract
BACKGROUND Lower respiratory tract infection (LRTI) after tracheal intubation under general anesthesia poses a serious threat to worldwide health care systems, especially those in developing countries. However, a significant number of studies have found inconsistent results in their investigation of the corresponding risk factors. METHODS Relevant articles published up to September 2015 were retrieved from PubMed, Ovid, Embase, China National Knowledge Infrastructure, Chinese Biological Medical Database, China Science and Technology Journal Database, and Wanfang Data. The z test was used to determine the significance of the pooled odds ratio (OR). ORs and 95% confidence intervals were used to compare the risk factors of LRTI after intubation under general anesthesia. RESULTS Fifteen case-control studies that included 27,304 participants were identified. We identified the following variables as independent risk factors: duration of general anesthesia >3 hours (OR, 2.45), age >60 years (OR, 2.35), normal endotracheal tube (OR, 1.63), deep intubation (OR, 2.66), unpracticed intubation (OR, 2.61), postoperative extubation time >2 hours (OR, 3.76), smoking history (OR, 3.02), chronic respiratory disease history (OR, 2.30), incomplete extubation indication (OR, 3.54), thoracic or craniocerebral surgery (OR, 1.90), and emergent surgery (OR, 2.54). CONCLUSIONS Eleven risk factors, including surgery, anesthesia, and health condition, were related to LRTI after intubation under general anesthesia. Given the limitations of this study, well-designed epidemiologic studies with a large sample size should be performed in the future.
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Affiliation(s)
- Xuan Xu
- Research Center for Medicine and Social Development, Innovation Center for Social Risk Governance in Health, School of Public Health and Management, Chongqing Medical University, Chongqing, China
| | - Xianxian Yang
- Research Center for Medicine and Social Development, Innovation Center for Social Risk Governance in Health, School of Public Health and Management, Chongqing Medical University, Chongqing, China
| | - Shangyingying Li
- Department of Anesthesiology, The Children's Hospital of Chongqing Medical University, Chongqing, China
| | - Mei Luo
- Research Center for Medicine and Social Development, Innovation Center for Social Risk Governance in Health, School of Public Health and Management, Chongqing Medical University, Chongqing, China
| | - Ying Qing
- Research Center for Medicine and Social Development, Innovation Center for Social Risk Governance in Health, School of Public Health and Management, Chongqing Medical University, Chongqing, China
| | - Xipeng Zhou
- Research Center for Medicine and Social Development, Innovation Center for Social Risk Governance in Health, School of Public Health and Management, Chongqing Medical University, Chongqing, China
| | - Jian Xue
- Research Center for Medicine and Social Development, Innovation Center for Social Risk Governance in Health, School of Public Health and Management, Chongqing Medical University, Chongqing, China
| | - Jingfu Qiu
- Research Center for Medicine and Social Development, Innovation Center for Social Risk Governance in Health, School of Public Health and Management, Chongqing Medical University, Chongqing, China
| | - Yingli Li
- Research Center for Medicine and Social Development, Innovation Center for Social Risk Governance in Health, School of Public Health and Management, Chongqing Medical University, Chongqing, China.
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Risk factors for hospital-acquired infection in cancer patients in a central Chinese hospital. Am J Infect Control 2016; 44:e163-5. [PMID: 27207162 DOI: 10.1016/j.ajic.2016.02.026] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/28/2015] [Revised: 02/17/2016] [Accepted: 02/25/2016] [Indexed: 12/29/2022]
Abstract
The present study assessed the risk factors associated with hospital-acquired infection (HAI) in a large Chinese cancer hospital. A total of 192,317 cancer inpatients were included in this study. Multivariate analysis of the associated risk factors indicated that older age, divorced and widowed status, surgical intervention, low rank surgical incision, and prolonged hospital stay were independent risk factors for HAIs in the cancer hospital.
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Yallew WW, Kumie A, Yehuala FM. Point prevalence of hospital-acquired infections in two teaching hospitals of Amhara region in Ethiopia. DRUG HEALTHCARE AND PATIENT SAFETY 2016; 8:71-6. [PMID: 27601932 PMCID: PMC5003516 DOI: 10.2147/dhps.s107344] [Citation(s) in RCA: 69] [Impact Index Per Article: 8.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
Abstract
Purpose Hospital-acquired infection (HAI) is a major safety issue affecting the quality of care of hundreds of millions of patients every year, in both developed and developing countries, including Ethiopia. In Ethiopia, there is no comprehensive research that presents the whole picture of HAIs in hospitals. The objective of this study was to examine the nature and extent of HAIs in Ethiopia. Methods A repeated cross-sectional study was conducted in two teaching hospitals. All eligible inpatients admitted for at least 48 hours on the day of the survey were included. The survey was conducted in dry and wet seasons of Ethiopia, that is, in March to April and July 2015. Physicians and nurses collected the data according to the Centers for Disease Control and Prevention definition of HAIs. Coded and cleaned data were transferred to SPSS 21 and STATA 13 for analysis. Univariate and multivariable logistic regression analyses were used to examine the prevalence of HAIs and relationship between explanatory and outcome variables. Results A total of 908 patients were included in this survey, the median age of the patients was 27 years (interquartile range: 16–40 years). A total of 650 (71.6%) patients received antimicrobials during the survey. There were 135 patients with HAI, with a mean prevalence of 14.9% (95% confidence interval 12.7–17.1). Culture results showed that Klebsiella spp. (22.44%) and Staphylococcus aureus (20.4%) were the most commonly isolated HAI-causing pathogens in these hospitals. The association of patient age and hospital type with the occurrence of HAI was statistically significant. Conclusion It was observed that the prevalence of HAI was high in the teaching hospitals. Surgical site infections and pneumonia were the most common types of HAIs. Hospital management should give more attention to promoting infection prevention practice for better control of HAIs in teaching hospitals.
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Affiliation(s)
- Walelegn Worku Yallew
- Institute of Public Health, College of Medicine and Health Sciences, University of Gondar, Gondar
| | - Abera Kumie
- School of Public Health, College of Health Sciences, Addis Ababa University, Addis Ababa
| | - Feleke Moges Yehuala
- Department of Medical Microbiology, College of Medicine and Health Sciences, University of Gondar, Gondar, Ethiopia
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Morioka H, Hirabayashi A, Iguchi M, Tomita Y, Kato D, Sato N, Hyodo M, Kawamura N, Sadomoto T, Ichikawa K, Inagaki T, Kato Y, Kouyama Y, Ito Y, Yagi T. The first point prevalence survey of health care-associated infection and antimicrobial use in a Japanese university hospital: A pilot study. Am J Infect Control 2016; 44:e119-23. [PMID: 27372390 DOI: 10.1016/j.ajic.2016.03.045] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/18/2015] [Revised: 03/13/2016] [Accepted: 03/14/2016] [Indexed: 12/20/2022]
Abstract
BACKGROUND Point prevalence surveys (PPSs) in Japanese hospitals have not yet been reported. The purpose of this pilot PPS study was to evaluate the epidemiology of health care-associated infections (HAIs) and antimicrobial use in a Japanese tertiary university hospital. METHODS A 1-day, cross-sectional PPS was performed at a Japanese university hospital. Data on demographics, active HAIs, and antimicrobial use of all inpatients were collected using a data collection form. RESULTS Of 841 patients, 85 (10.1%) had 90 active HAIs, and 308 patients (36.6%) were administered 494 antimicrobials. Among the 90 HAIs and 58 pathogens, the most frequent infection and isolated pathogen were pneumonia (20.0%) and Enterobacteriaceae (27.6%), respectively. Of the 118 antimicrobials used for treatment of HAIs, carbapenems were the most frequently administered category of antimicrobials (22.9%). In regard to antimicrobials for surgical prophylaxis, 37 of 119 (31.1%) were administered to patients on postoperative day 3 or later, and 48 of 119 (40.3%) were administered orally. CONCLUSIONS The incidence of HAIs is higher than in other developed countries. The social and medical situation in Japan may affect patient demographics, active HAIs, and antimicrobial use. Multicenter PPSs are necessary to uncover the real epidemiology of HAIs and antimicrobial use in Japan.
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Affiliation(s)
- Hiroshi Morioka
- Department of Infectious Diseases, Nagoya University Hospital, Nagoya, Aichi, Japan
| | - Aki Hirabayashi
- Department of Infectious Diseases, Nagoya University Hospital, Nagoya, Aichi, Japan
| | - Mitsutaka Iguchi
- Department of Infectious Diseases, Nagoya University Hospital, Nagoya, Aichi, Japan
| | - Yuka Tomita
- Department of Infectious Diseases, Nagoya University Hospital, Nagoya, Aichi, Japan
| | - Daizo Kato
- Department of Infectious Diseases, Nagoya University Hospital, Nagoya, Aichi, Japan
| | - Naokazu Sato
- Department of Nephrology, Nagoya University Hospital, Nagoya, Aichi, Japan
| | - Miyuki Hyodo
- Department of Nursing, Nagoya University Hospital, Nagoya, Aichi, Japan
| | - Naoko Kawamura
- Department of Nursing, Nagoya University Hospital, Nagoya, Aichi, Japan
| | - Takuya Sadomoto
- Department of Nursing, Nagoya University Hospital, Nagoya, Aichi, Japan
| | - Kazuya Ichikawa
- Department of Hospital Pharmacy, Nagoya University Hospital, Nagoya, Aichi, Japan
| | - Takayuki Inagaki
- Department of Hospital Pharmacy, Nagoya University Hospital, Nagoya, Aichi, Japan
| | - Yoshiaki Kato
- Department of Hospital Pharmacy, Nagoya University Hospital, Nagoya, Aichi, Japan
| | - Yuichi Kouyama
- Department of Hospital Pharmacy, Nagoya University Hospital, Nagoya, Aichi, Japan
| | - Yoshinori Ito
- Department of Pediatrics, Nagoya University Graduate School of Medicine, Nagoya, Aichi, Japan
| | - Tetsuya Yagi
- Department of Infectious Diseases, Nagoya University Hospital, Nagoya, Aichi, Japan.
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Zhang Y, Zhang J, Wei D, Yang Z, Wang Y, Yao Z. Annual surveys for point-prevalence of healthcare-associated infection in a tertiary hospital in Beijing, China, 2012-2014. BMC Infect Dis 2016; 16:161. [PMID: 27091177 PMCID: PMC4835875 DOI: 10.1186/s12879-016-1504-4] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/25/2015] [Accepted: 04/09/2016] [Indexed: 01/12/2023] Open
Abstract
Background This study aimed to investigate the prevalence of healthcare-associated infection (HAI) in the China-Japan Friendship Hospital, a tertiary level hospital in Beijing, China. Methods We defined HAI using the criteria established by the Ministry of Health of the People’s Republic of China. Three cross-sectional surveys were conducted from 2012 to 2014. Inpatients who had been hospitalized for at least 48 h were surveyed. Information on HAI prevalence, isolated pathogens and use of antibiotics were collected. Logistic regression models were used to assess the associations between HAI and potential risk factors. Results During three cross-sectional surveys, a total number of 4,029 patients were included (1,233 patients in 2012, 1,220 patients in 2013 and 1,576 patients in 2014). The overall prevalence of patients with HAI was 3.6 % (95 % confidence interval (CI) 3.1 %–4.2 %). Respiratory tract infections were the most common type (64.7 %) of HAIs, followed by urinary tract infections (12.6 %) and bloodstream infections (5.4 %). HAI occurrences were significantly associated with male sex (odds ratio (OR) = 2.25, 95 % CI 1.53-3.32), age over 85 years (OR = 4.74, 95 % CI 2.54–8.83), hospitalization in the intensive care units (ICUs) (OR = 2.42, 95 % CI 1.31–4.49), indwelling urinary catheter (OR = 4.21, 95 % CI 2.46–7.20) and mechanical ventilation (OR = 2.31, 95 % CI 1.30–4.09). Gram-negative bacteria were found to be the most isolated pathogens (67.1 %), with gram-positive bacteria and fungi accounted for 20.3 % and 10.5 %, respectively. Antibiotics were administered to 34.3 % of the included patients over the study period. Conclusions The overall HAI prevalence in our hospital is similar to previous studies that were conducted in other areas of China, and the respiratory tract infection should be the priority in HAI reduction control within China. We should focus HAI reduction efforts on patients with advanced age, hospitalization in the ICU and indwelling devices.
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Affiliation(s)
- Yaowen Zhang
- Infection Management and Disease Prevention Department, China-Japan Friendship Hospital, Beijing, 100029, China
| | - Jing Zhang
- Infection Management and Disease Prevention Department, China-Japan Friendship Hospital, Beijing, 100029, China
| | - Dong Wei
- Infection Management and Disease Prevention Department, China-Japan Friendship Hospital, Beijing, 100029, China
| | - Zhirong Yang
- Center of Post-marketing Safety Evaluation, Peking University Health Science Center, Beijing, 100083, China.,Department of Epidemiology and Bio-statistics, Peking University Health Science Center, Beijing, 100083, China
| | - Yanyan Wang
- Department of Medical Records and Statistics, China-Japan Friendship Hospital, Beijing, 100029, China
| | - Zhiyuan Yao
- Infection Management and Disease Prevention Department, China-Japan Friendship Hospital, 2 East Yinghuayuan Street, Chaoyang District, Beijing, 100029, China.
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Peng H, Tao XB, Li Y, Hu Q, Qian LH, Wu Q, Ruan JJ, Cai DZ. Health care-associated infections surveillance in an intensive care unit of a university hospital in China, 2010-2014: Findings of International Nosocomial Infection Control Consortium. Am J Infect Control 2015; 43:e83-5. [PMID: 26315060 DOI: 10.1016/j.ajic.2015.07.023] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/14/2015] [Revised: 07/13/2015] [Accepted: 07/14/2015] [Indexed: 11/30/2022]
Abstract
Using a standardized methodology by the National Nosocomial Infection Surveillance System, a continuous health care-associated infections (HAIs) surveillance was conducted in our mixed intensive care unit at a Chinese teaching hospital. During the study period (2010-2014), 4,013 patients were hospitalized for 32,924 bed days and acquired 427 HAIs (482 HAI events), with an overall rate of 10.64% and 14.640 HAIs per 1,000 bed days. Ventilator-associated pneumonia was the most common device-associated health care-acquired infection, with an incidence rate of 19.561 per 1,000 mechanical ventilator days.
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Affiliation(s)
- Hui Peng
- Department of Hospital Infection Management, Yijishan Hospital of Wannan Medical College, Wuhu, People's Republic of China
| | - Xiu-Bin Tao
- Department of Hospital Infection Management, Yijishan Hospital of Wannan Medical College, Wuhu, People's Republic of China.
| | - Yan Li
- Department of Hospital Infection Management, Yijishan Hospital of Wannan Medical College, Wuhu, People's Republic of China
| | - Qiang Hu
- Department of Science and Technology, Yijishan Hospital of Wannan Medical College, Wuhu, People's Republic of China
| | - Li-Hua Qian
- Department of Hospital Infection Management, Yijishan Hospital of Wannan Medical College, Wuhu, People's Republic of China
| | - Qun Wu
- Department of Hospital Infection Management, Yijishan Hospital of Wannan Medical College, Wuhu, People's Republic of China
| | - Jing-Jing Ruan
- Department of Hospital Infection Management, Yijishan Hospital of Wannan Medical College, Wuhu, People's Republic of China
| | - Dong-Zhen Cai
- Department of Hospital Infection Management, Yijishan Hospital of Wannan Medical College, Wuhu, People's Republic of China
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Chen S, He N, Yu J, Li L, Sun F, Hu Y, Deng R, Zhong S, Shen L. Inhibitory effect of 2‑mercaptoethane sulfonate on the formation of Escherichia coli biofilms in vitro. Mol Med Rep 2015; 12:5223-30. [PMID: 26238522 DOI: 10.3892/mmr.2015.4112] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/07/2014] [Accepted: 06/25/2015] [Indexed: 11/06/2022] Open
Abstract
The biofilms (BF) formed by Escherichia coli (E. coli) is an important cause of chronic and recurrent infections due to its capacity to persist on medical surfaces and indwelling devices, demonstrating the importance of inhibiting the formation of E. coli BF and reducing BF infection. Although 2‑mercaptoethane sulfonate (MESNA) exhibits a marked mucolytic effect clinically, the effect of MESNA on the inhibition of E. coli BF formation remains to be elucidated. The present study investigated whether MESNA inhibits the formation of E. coli BF in vitro. The minimum inhibitory concentration of MESNA on E. coli was determined to be 10 mg/ml. Subsequently, the effect of MESNA on BF early adhesion, extracellular polysaccharide (EPS) and extracellular protein were detected. The effect of a subinhibitory concentration of MESNA on BF formation was evaluated, and the inhibitory potency of MESNA against matured BF was assayed. The results revealed that MESNA inhibited early stage adhesion and formation of the E. coli BF, destroyed the mature BF membrane and reduced the EPS and extracellular proteins levels of the BF. In addition, the present study investigated the effects of MESNA on the expression of EPS‑ and adhesion protein‑associated genes using quantitative polymerase chain reaction analysis, which demonstrated that MESNA effectively inhibited the expression of these genes. These results suggested that MESNA possesses anti‑BF formation capability on E. coli in vitro and may be used as a potential reagent for the clinical treatment of E. coli BF‑associated infections.
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Affiliation(s)
- Sheng Chen
- Department of Pediatrics, Southwest Hospital of The Third Military Medical University, Chongqing 400038, P.R. China
| | - Nianhai He
- Department of Pediatrics, Southwest Hospital of The Third Military Medical University, Chongqing 400038, P.R. China
| | - Jialin Yu
- Department of Neonatology, Children's Hospital of Chongqing Medical University, Chongqing 400014, P.R. China
| | - Luquan Li
- Department of Neonatology, Children's Hospital of Chongqing Medical University, Chongqing 400014, P.R. China
| | - Fengjun Sun
- Department of Pharmacy, Southwest Hospital of The Third Military Medical University, Chongqing 400038, P.R. China
| | - Ying Hu
- Department of Pediatrics, Southwest Hospital of The Third Military Medical University, Chongqing 400038, P.R. China
| | - Rui Deng
- Department of Pediatrics, Southwest Hospital of The Third Military Medical University, Chongqing 400038, P.R. China
| | - Shiming Zhong
- Department of Pediatrics, Southwest Hospital of The Third Military Medical University, Chongqing 400038, P.R. China
| | - Leilei Shen
- Department of Pediatrics, Southwest Hospital of The Third Military Medical University, Chongqing 400038, P.R. China
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