scholarly journals 1210. Investigating a Staphylococcus aureus Outbreak in a Clinical Intensive Care Unit: What Is the Role of the Mobile Phones?

2019 ◽  
Vol 6 (Supplement_2) ◽  
pp. S435-S435
Author(s):  
Evelyn Patricia Sanchez Espinoza ◽  
Lauro Viera Perdigão Neto ◽  
Sania Alves dos Santos ◽  
Camila Risek ◽  
Maria Renata Gomes Franco ◽  
...  

Abstract Background Staphylococcus aureus (Sa) outbreaks are serious infections that if not controlled in time can be life-threating. The aim of this study was to describe the investigation and control of a Sa outbreak in an intensive care unit including analysis of MP. Methods During a microbiological research of MP conducted in December 2018 in a clinical intensive care unit (ICU) of a tertiary university hospital two patients had an MRSA infection. Since this unit had not reported MRSA infections during the last year it was recognized as an outbreak. The CDC criteria was applied to define MRSA colonization and infection. Hand hygiene (HH) adhesion in this unit was 47%,it has 9 beds and 30 Healthcare professionals (HP). Nasal Swab (NS) of all the HPs and of the patients in the same unit as well. HP’s MP were also analyzed. The samples were subjected to MALDI-TOF (Biomerieux), phenotypical tests, PCR for detection of gene coA and mecA, pulsed-field gel electrophoresis (PFGE), and whole-genome sequence to access resistance, virulence profile and sequence type. Feedback of microbiology results, reinforcement of hand hygiene and MP cleaning was discussed with the unit staff. Results A total of 34 samples were collected, 25 were Sa, 13 NS of all HPs and patients, 7 from the MPs and 3 from HPs hands. During the time of the outbreak 5 patients were in the unit. Patients with infection by MRSA (n = 2), had Methicillin-susceptible Sa in their NSs. Another patient that from the same unit had a MRSA in the NS that when submitted to PFGE was seen to be closely related with the MRSA that originated the outbreak. The patients isolates were assigned to different STs and they had more virulent and resistance genes in comparison with two samples of MPs. The Sa recovered from the MPs belonged to the same ST, same resistance gene and same virulent genes. Figure 1, Table1. Since the feedback to the unit no cases of MRSA have been reported in the last 4 months. Conclusion The outbreak was controlled using simply measures (feedback, reinforcement of HH and MP cleaning). The ST398 from the MP has already been described in outbreaks in literature. It seems that MP can be a reservoir for Sa There was more than one Sa lineage in the ICU. Our findings highlighted the need of rethinking the MP cleaning policy in our hospital. Disclosures All authors: No reported disclosures.

2019 ◽  
Vol 13 (08) ◽  
pp. 744-747 ◽  
Author(s):  
Uluhan Sili ◽  
Pinar Ay ◽  
Huseyin Bilgin ◽  
Seyhan Hidiroglu ◽  
Volkan Korten

Introduction: While improvement of hand hygiene (HH) compliance is considered as the best approach to reduce healthcare-associated infections, the instructional interventions in HH among healthcare workers of intensive care unit (ICU) of our hospital was not successful enough. The following study was conducted to evaluate HH knowledge, perception, practice and effectiveness of the trainings among healthcare workers of ICU in our hospital. Methodology: A cross-sectional study was conducted in the ICU containing 8 medical and 16 surgical beds with 284 filled questionnaires about HH knowledge and 1187 observed opportunities for HH compliance. Results: Overall observed HH compliance rate was 40.6%; lowest compliance was 21.7% for “before clean/aseptic procedure” indication and highest compliance was 68.6% for “after touching a patient” indication. Although > 90% healthcare workers correctly identified the World Health Organization’s five indications for HH, 82 – 85% failed to recognize non-indications, i.e. when it was not necessary to perform HH. Our study showed that 15.1% of healthcare workers neither received nor felt the need for HH training. Conclusions: Despite regular HH trainings, healthcare workers could not differentiate when HH was not required which suggested failure to understand HH rationale. This may explain poor HH compliance rates. A systematic study is needed in order to find out the reasons behind of this noncompliance and improve HH training methods for educating healthcare workers.


2019 ◽  
Vol 19 (1) ◽  
Author(s):  
Farida Chamchod ◽  
Prasit Palittapongarnpim

Abstract Background The presence of nosocomial pathogens in many intensive care units poses a threat to patients and public health worldwide. Methicillin-resistant Staphylococcus aureus (MRSA) is an important pathogen endemic in many hospital settings. Patients who are colonized with MRSA may develop an infection that can complicate their prior illness. Methods A mathematical model to describe transmission dynamics of MRSA among high-risk and low-risk patients in an intensive care unit (ICU) via hands of health care workers is developed. We aim to explore the effects of the proportion of high-risk patients, the admission proportions of colonized and infected patients, the probability of developing an MRSA infection, and control strategies on MRSA prevalence among patients. Results The increasing proportion of colonized and infected patients at admission, along with the higher proportion of high-risk patients in an ICU, may significantly increase MRSA prevalence. In addition, the prevalence becomes higher if patients in the high-risk group are more likely to develop an MRSA infection. Our results also suggest that additional infection prevention and control measures targeting high-risk patients may considerably help reduce MRSA prevalence as compared to those targeting low-risk patients. Conclusions The proportion of high-risk patients and the proportion of colonized and infected patients in the high-risk group at admission may play an important role on MRSA prevalence. Control strategies targeting high-risk patients may help reduce MRSA prevalence.


1990 ◽  
Vol 11 (1) ◽  
pp. 23-26 ◽  
Author(s):  
M. Guiguet ◽  
C. Rekacewicz ◽  
B. Leclercq ◽  
Y. Brun ◽  
B. Escudier ◽  
...  

AbstractBetween June 1985 and March 1986, 14 cases of severe nosocomial methicillin-resistant Staphylococcus aureus (MRSA) infection, including septicemia, were observed in the intensive care unit (ICU) of a 400-bed cancer reference center. Simple control measures including contact isolation of colonized patients and reinforcement of handwashing practices among personnel were followed by a sharp decrease in the rate of infection and colonization. An epidemiological investigation showed that a single serophage variant MRSA strain was involved; peak incidence of infection was 17 per 100 ICU patient discharges; the index case was identified as a patient admitted from another hospital and the epidemic strain was then transmitted from patient-to-patient in the ICU; risk factors for acquiring infection were length of prior hospitalization, invasive procedures and number of antibiotic treatments; dissemination of the strain to other wards was only anecdotal. These results stress the effectiveness of simple measures to control outbreaks of MRSA nosocomial infections even in immunocompromised cancer patients.


2011 ◽  
Vol 44 (6) ◽  
pp. 731-734 ◽  
Author(s):  
Daiane Silva Resende ◽  
Jacqueline Moreira do Ó ◽  
Denise von Dolinger de Brito ◽  
Vânia Olivetti Steffen Abdallah ◽  
Paulo Pinto Gontijo Filho

INTRODUCTION: Catheter-associated bloodstream infection (CA-BSI) is the most common nosocomial infection in neonatal intensive care units. There is evidence that care bundles to reduce CA-BSI are effective in the adult literature. The aim of this study was to reduce CA-BSI in a Brazilian neonatal intensive care unit by means of a care bundle including few strategies or procedures of prevention and control of these infections. METHODS: An intervention designed to reduce CA-BSI with five evidence-based procedures was conducted. RESULTS: A total of sixty-seven (26.7%) CA-BSIs were observed. There were 46 (32%) episodes of culture-proven sepsis in group preintervention (24.1 per 1,000 catheter days [CVC days]). Neonates in the group after implementation of the intervention had 21 (19.6%) episodes of CA-BSI (14.9 per 1,000 CVC days). The incidence of CA-BSI decreased significantly after the intervention from the group preintervention and postintervention (32% to 19.6%, 24.1 per 1,000 CVC days to 14.9 per 1,000 CVC days, p=0.04). In the multiple logistic regression analysis, the use of more than 3 antibiotics and length of stay >8 days were independent risk factors for BSI. CONCLUSIONS: A stepwise introduction of evidence-based intervention and intensive and continuous education of all healthcare workers are effective in reducing CA-BSI.


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