Nosocomial Infection and Multidrug-Resistant Bacteria Surveillance in Intensive Care Units: A Survey in France

2005 ◽  
Vol 26 (1) ◽  
pp. 13-20 ◽  
Author(s):  
François L'Hériteau ◽  
Corinne Alberti ◽  
Yves Cohen ◽  
Gilles Troché ◽  
Pierre Moine ◽  
...  

AbstractObjectives:To evaluate nosocomial infection (NI) surveillance strategies in French ICUs and to identify similar patterns defining subsets within which comparisons can be made.Design:A questionnaire was sent to all French ICUs, and a random sample of nonresponders was interviewed.Participants:Three hundred ninety-five responder ICUs (69%) in France.Results:In 282 ICUs (71%), a dedicated ICU staff member was responsible for infection control activities. The microbiology laboratory was usually in the hospital (90%) and computerized (94%) but issued regular hospital microbiology records in only 48% of cases. Patients receiving mechanical ventilation, central venous catheterization, and urinary catheterization were 90%, 79%, and 60%, respectively. Patients were screened for carriage of mul-tidrug-resistant bacteria on admission and during the stay in 70% and 60% of ICUs, respectively, most often targeting MRSA. Quantitative cultures were used to diagnose ventilator-associated pneumonia (VAP) in 90% of ICUs, including distal specimens in 80% and bronchoscopy specimens in 60%. Quantitative central venous catheter (CVC)-segment cultures were used in 70% of ICUs. All CVCs were cultured routinely in 53% of the ICUs. Despite wide variations in infection control and surveillance strategies, multiple correspondence analysis identified 13 key points (4 structural variables and 9 variables concerning the diagnosis of VAP, the surveillance and diagnosis of catheter-related and urinary tract infections, and the mode of screening of MRSA carriers) that categorize the variability of French ICUs' approaches to NIs.Conclusion:This study revealed profound differences in N1 surveillance strategies across ICUs, indicating a need for caution when using N1 surveillance data for comparisons and benchmarking.

Author(s):  
Māris Liepiņš ◽  
Raimonds Sīmanis ◽  
Aivars Lejnieks

Abstract There has been an increasing tendency of infections caused by multidrug-resistant organisms (MDRO), including multidrug-resistant Acinetobacter baumannii (MDRAB), in the Rīga East University Hospital (REUH) during the last decade. Over the last two years (2014-2015), this tendency has reversed and the prevalence of MDRAB has decreased considerably. In this study we assessed the prevalence of MDRAB in intensive care units (ICUs), internal medicine, surgery units and analysed antibiotic sensitivity profiles. In addition, we determined if current infection control measures are preventing further increase of infections caused by MDRAB in REUH. Retrospective Acinetobacter baumannii prevalence data were collected for the period from 2009 until 2012. For the time period from the beginning of 2013 until 2015, after implementing such infection control measures as control of compliance to hand hygiene guidelines, a review of central venous catheter insertion protocols and regular search for sources of MDRAB in hospital environment, prospective follow-up of new cases was conducted. Antimicrobial sensitivity profiles were assessed for the period from 2013 until 2015. Data were processed with the statistical software WHONET 5.5. Bacteria identification and antibiotic susceptibility testing were performed by VITEK 2 compact, BioMerieux, France. The prevalence of MDRAB in the period 2009 to 2013 increased from 71 to 217 cases per year, but from between 2013 (time of implementing infection control measures) and 2015 it decreased to 113 cases in 2015. In the three year period (2013-2015), the proportion of MDRAB causing bloodstream infections (BSI) and central nervous system infections (CNSI) was 15.85% from all identified MDRAB cases. Of the 113 MDRAB infections diagnosed in 2015, BSI was found in 16.81% cases (n = 19). Antibiotic resistance testing showed that colistin is the most effective drug against MDRAB. The majority of Acinetobacter baumannii isolates were resistant to Ampicillin/Sulbactam, Piperacillin/Tazobactam, Ceftazidime, Cefepime, Imipenem, Meropenem, Amikacin, Gentamicin, Tobramycin, and Ciprofloxacin. Over the last two years (2014-2015), prevalence of MDRAB infections decreased considerably. In the time period from 2013 to 2014, resistance of Acinetobacter baumannii increased to imipenem, ciprofloxacin and colistin, while decreased slightly to amikacin. Rigorous infection control measures, such as identification and elimination of new MDRAB sources in environment, review of the central venous catheter insertion protocol and improvements in hand hygiene, are crucial for decreasing distribution of and invasive infections caused by MDRAB in the hospital environment.


Author(s):  
Ignatius Leon Guang Woei ◽  
Farida Islahudin ◽  
Norazlah Bahari ◽  
Tong Ji Sen

The rapid emergence of antibiotic-resistant bacteria is a threat to global health particularly in the area of healthcare-associate pneumonia (HCAP) where there is high rate of mortality. In general, guidelines should serve as a framework that needs to be complemented by local antibiogram data due to multiple factors influencing the development of multidrug-resistant (MDR) HCAP. Failure to administer prompt and appropriate empirical therapy would often result in a high mortality rate. Based on these concerns, the aim of the study was to evaluate the appropriate empirical use of antibiotic and risk factors of MDR HCAP based on local pathogen resistant pattern. This was a retrospective analysis on HCAP in critical care of a tertiary-care hospital with data from January 2016 to December 2018. Patients diagnosed with HCAP: hospital-associated pneumonia (HAP) and ventilator-associated pneumonia (VAP), with positive bacterial cultures were included into the study. Of the 269 patients and isolates included, 160 (59.5%) had MDR strains. The top causative pathogens isolated were Acinetobacter baumannii (n=104, 38.7%), Pseudomonas aeruginosa (n=66, 24.5%), Klebsiella spp (n==55, 20.4%), and Staphylococcus aureus (n=16, 5.9%). The incidence of inappropriate empirical antibiotic was significantly higher in patients with MDR HCAP (n=135, 84.4%) compared to those with non-MDR HCAP (n=34, 31.2%) (p < 0.001). Mortality was significantly higher in patients receiving inappropriate empirical therapy (n = 118, 72.4%) compared to those receiving appropriate empirical antibiotic (n = 36, 54.5%) (P = 0.009). The independent risk factors for MDR HCAP identified in this study were hypoalbuminemia (odds ratio [OR] 3.43, 95% confidence interval [CI] 1.08 – 10.87, p = 0.036) and indwelling central venous catheter (OR 5.65, 95% CI 1.13 – 28.18, p = 0.035). This work serves as a basis for a center-specific guideline to improve antibiotic use among HCAP patients in intensive care setting.


2020 ◽  
Vol 41 (S1) ◽  
pp. s162-s163
Author(s):  
Loice Ombajo ◽  
Malcolm Correia ◽  
Alice Kanyua ◽  
Cheptoo Bore ◽  
Phoebe Juma ◽  
...  

Background:Candida auris is of global concern due to its increasing frequency in intensive care units (ICUs), reported resistance to antifungal agents, propensity to cause outbreaks, and persistence in clinical environments. We investigated an increase in C. auris cases in an ICU in Kenya to determine the source of transmission and to control the spread of the disease. Methods: To identify cases, we reviewed laboratory records of patients with blood cultures yielding C. auris and organisms for which it is commonly misidentified by Vitek 2 v 8.01 software (ie, C. haemulonii, C. duobushaemulonii and C. famata) during January 2018–May 2019. We retrospectively reviewed medical charts of C. auris patients to extract information on demographics, underlying conditions, hospital procedures, treatments, and outcomes. We also enhanced infection control efforts by implementing contact precautions, equipment, and environmental disinfection, and hand hygiene training and compliance observations. Results: We identified 32 C. auris patients (Fig. 1). Median patient age was 55 years (IQR, 43–65), and 57% were male. Length of hospitalization before C. auris isolation was 30 days (IQR, 14–36). All had been admitted to the ICU. The most common reasons for admission were sepsis (50%), pneumonia (34%), surgery (25%), and stroke or other neurologic diagnosis (25%). Underlying comorbidities included hypertension (38%), diabetes mellitus (25%), and malignancy (29%). Two patients had HIV. Moreover, 61% of cultures yielded multidrug-resistant bacteria. Also, 33% of the patients had been admitted to this hospital in the preceding 3 months; 21% had been admitted to a hospital outside of Kenya; and 10% had been admitted to another hospital in Kenya in the previous year. Almost all (97%) had a central venous catheter, 45% had an acute dialysis catheter, 66% had an endotracheal tube, and 34% had a tracheostomy, with 69% receiving mechanical ventilation before C. auris isolation. Most (94%) had urinary catheters, 84% had nasogastric tubes, 91% had received total parenteral nutrition, and 75% had received blood products. All patients received broad-spectrum antibiotics and 49% received an antifungal before C. auris isolation. All-cause in-hospital mortality was 64% for the 28 patients whose outcomes were available. Following implementation of a hand hygiene campaign and improved equipment and environmental disinfection, no further cases were identified. Conclusions: We identified C. auris bloodstream infections associated with high all-cause mortality in a Kenyan hospital ICU. All patients had treatments and procedures suggesting severe underlying illness. Enhanced infection control contained the outbreak.Funding: NoneDisclosures: None


Biomedicines ◽  
2021 ◽  
Vol 9 (2) ◽  
pp. 218
Author(s):  
Taja Železnik Ramuta ◽  
Larisa Tratnjek ◽  
Aleksandar Janev ◽  
Katja Seme ◽  
Marjanca Starčič Erjavec ◽  
...  

Urinary tract infections (UTIs) represent a serious global health issue, especially due to emerging multidrug-resistant UTI-causing bacteria. Recently, we showed that the human amniotic membrane (hAM) could be a candidate for treatments and prevention of UPEC and Staphylococcus aureus infections. However, its role against multidrug-resistant bacteria, namely methicillin-resistant S. aureus (MRSA), extended-spectrum beta-lactamases (ESBL) producing Escherichia coli and Klebsiella pneumoniae, vancomycin-resistant Enterococci (VRE), carbapenem-resistant Acinetobacter baumannii, and Pseudomonas aeruginosa has not yet been thoroughly explored. Here, we demonstrate for the first time that the hAM homogenate had antibacterial activity against 7 out of 11 tested multidrug-resistant strains, the greatest effect was on MRSA. Using novel approaches, its activity against MRSA was further evaluated in a complex microenvironment of normal and cancerous urinary bladder urothelia. Even short-term incubation in hAM homogenate significantly decreased the number of bacteria in MRSA-infected urothelial models, while it did not affect the viability, number, and ultrastructure of urothelial cells. The hAM patches had no antibacterial activity against any of the tested strains, which further exposes the importance of the hAM preparation. Our study substantially contributes to basic knowledge on the antibacterial activity of hAM and reveals its potential to be used as an antibacterial agent against multidrug-resistant bacteria.


2021 ◽  
Vol 74 (suppl 6) ◽  
Author(s):  
Monica Taminato ◽  
Richarlisson Borges de Morais ◽  
Dayana Souza Fram ◽  
Rogério Rodrigues Floriano Pereira ◽  
Cibele Grothe Esmanhoto ◽  
...  

ABSTRACT Objectives: to assess the prevalence of colonization and infection by multidrug-resistant bacteria in patients undergoing kidney transplantation and identify the rate of infection, morbidity and mortality and associated risk factors. Methods: a prospective cohort of 200 randomly included kidney transplant recipients. Epidemiological surveillance of the studied microorganisms was carried out in the first 24 hours and 7 days after transplantation. Results: ninety (45%) patients were considered colonized. Female sex, hypertension and diabetes (p<0.005), dialysis time (p<0.004), length of stay after transplantation, delayed renal function, and length of stay were identified as risk factors. The microorganisms were isolated from surgical site, bloodstream and urinary tract infections. Conclusions: colonization by resistant microorganisms in kidney transplant patients was frequent and risk factors associated with infection were identified. The results should guide the care team in order to minimize morbidity and mortality related to infectious causes in this population.


Author(s):  
Dailen Brown ◽  
Haroula Tzamaras ◽  
Jessica M. Gonzalez-Vargas ◽  
Scarlett Miller ◽  
Jason Moore

Abstract An advanced surface for Central Venous Catheterization (CVC) training and evaluation was designed using sensorization techniques, including the use of a hall effect sensor array to measure the insertion depth of a catheter. The sensor array was tested for accuracy in both static and dynamic scenarios, and was found to be sufficiently accurate; measuring position with an accuracy of ±1.1 mm on average. The highest deviations in measured positions were located at the extreme ends of the array where calculations rely on only a single sensor. The maximum deviation in measured position was found to be 3.5 mm. This low-cost system of catheter measurement has the potential to improve feedback and assessment of CVC training.


2019 ◽  
Vol 21 (4) ◽  
pp. 440-448 ◽  
Author(s):  
Timothy R Spencer ◽  
Amy J Bardin-Spencer

Background: To evaluate novice and expert clinicians’ procedural confidence utilizing a blended learning mixed fidelity simulation model when applying a standardized ultrasound-guided central venous catheterization curriculum. Methods: Simulation-based education and ultrasound-guided central venous catheter insertion aims to provide facility-wide efficiencies and improves patient safety through interdisciplinary collaboration. The objective of this quality improvement research was to evaluate both novice (<50) and expert (>50) clinicians’ confidence across 100 ultrasound-guided central venous catheter insertion courses were performed at a mixture of teaching and non-teaching hospitals across 26 states within the United States between April 2015 and April 2016. A total of 1238 attendees completed a pre- and post-survey after attending a mixed method clinical simulation course. Attendees completed a 4-h online didactic education module followed by 4 h of hands-on clinical simulation stations (compliance/sterile technique, needling techniques, vascular ultrasound assessment, and experiential complication management). Results: The use of a standardized evidence-based ultrasound-guided central venous catheter curriculum improved confidence and application to required clinical tasks and knowledge across all interdisciplinary specialties, regardless of level of experience. Both physician and non-physician groups resulted in statistically significant results in both procedural compliance ( p < 0.001) and ultrasound skills ( p < 0.001). Conclusion: The use of a standardized clinical simulation curriculum enhanced all aspects of ultrasound-guided central venous catheter insertion skills, knowledge, and improved confidence for all clinician types. Self-reported complications were reported at significantly higher rates than previously published evidence, demonstrating the need for ongoing procedural competencies. While there are growing benefits for the role of simulation-based programs, further evaluation is needed to explore its effectiveness in changing the quality of clinical outcomes within the healthcare setting.


2016 ◽  
Vol 54 (12) ◽  
pp. 2850-2853 ◽  
Author(s):  
John P. Dekker ◽  
Karen M. Frank

Multidrug-resistant bacteria are responsible for substantial morbidity and mortality worldwide. Tracking the nosocomial spread of resistant bacteria is critical to infection control. Mellmann et al. (J. Clin. Microbiol. 54:2874–2881, 2016, http://dx.doi.org/10.1128/JCM.00790-16 ) have described prospective whole-genome sequencing with core genome multilocus sequencing typing (cgMLST) analysis for real-time surveillance and have addressed the practical aspects of implementing this type of operation in the hospital setting.


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