High proportion of healthcare-associated urinary tract infection in the absence of prior exposure to urinary catheter: a cross-sectional study

Exposure to urinary catheters is considered the most important risk factor for healthcare-associated urinary tract infection (UTI) and is associated with significant morbidity and substantial extra-costs. In this study, we assessed the impact of urinary catheterisation (UC) on symptomatic healthcare-associated UTI among hospitalized patients.

Nasal carriage of methicillin-resistant Staphylococcus aureus (MRSA) among Swiss veterinary health care providers: detection of livestock- and healthcare-associated clones.

We screened a total of 340 veterinarians (including general practitioners, small animal practitioners, large animal practitioners, veterinarians working in different veterinary services or industry), and 29 veterinary assistants for nasal carriage of methicillin-resistant Staphylococcus aureus (MRSA) and Staphylococcus pseudintermedius (MRSP) at the 2012 Swiss veterinary annual meeting. MRSA isolates (n = 14) were detected in 3.8 % (95 % CI 2.1 - 6.3 %) of the participants whereas MRSP was not detected. Large animal practitioners were carriers of livestock-associated MRSA (LA-MRSA) ST398-t011-V (n = 2), ST398-t011-IV (n = 4), and ST398-t034-V (n = 1). On the other hand, participants working with small animals harbored human healthcare-associated MRSA (HCA-MRSA) which belonged to epidemic lineages ST225-t003-II (n = 2), ST225-t014-II (n = 1), ST5-t002-II (n = 2), ST5-t283-IV (n = 1), and ST88-t186-IV (n = 1). HCA-MRSA harbored virulence factors such as enterotoxins, β-hemolysin converting phage and leukocidins. None of the MRSA isolates carried Panton-Valentine leukocidin (PVL). In addition to the methicillin resistance gene mecA, LA-MRSA ST398 isolates generally contained additional antibiotic resistance genes conferring resistance to tetracycline [tet(M) and tet(K)], trimethoprim [dfrK, dfrG], and the aminoglycosides gentamicin and kanamycin [aac(6')-Ie - aph(2')-Ia]. On the other hand, HCA-MRSA ST5 and ST225 mainly contained genes conferring resistance to the macrolide, lincosamide and streptogramin B antibiotics [erm(A)], to spectinomycin [ant(9)-Ia], amikacin and tobramycin [ant(4')-Ia], and to fluoroquinolones [amino acid substitutions in GrlA (S84L) and GyrA (S80F and S81P)]. MRSA carriage may represent an occupational risk and veterinarians should be aware of possible MRSA colonization and potential for developing infection or for transmitting these strains. Professional exposure to animals should be reported upon hospitalization and before medical intervention to allow for preventive measures. Infection prevention measures are also indicated in veterinary medicine to avoid MRSA transmission between humans and animals, and to limit the spread of MRSA both in the community, and to animal and human hospitals.

Randomized, controlled trial of topical exit-site application of honey (Medihoney) versus Mupirocin for the prevention of catheter-associated infections in hemodialysis patients

The clinical usefulness of hemodialysis catheters is limited by increased infectious morbidity and mortality. Topical antiseptic agents, such as mupirocin, are effective at reducing this risk but have been reported to select for antibiotic-resistant strains. The aim of the present study was to determine the efficacy and the safety of exit-site application of a standardized antibacterial honey versus mupirocin in preventing catheter-associated infections. A randomized, controlled trial was performed comparing the effect of thrice-weekly exit-site application of Medihoney versus mupirocin on infection rates in patients who were receiving hemodialysis via tunneled, cuffed central venous catheters. A total of 101 patients were enrolled. The incidences of catheter-associated bacteremias in honey-treated (n = 51) and mupirocin-treated (n = 50) patients were comparable (0.97 versus 0.85 episodes per 1000 catheter-days, respectively; NS). On Cox proportional hazards model analysis, the use of honey was not significantly associated with bacteremia-free survival (unadjusted hazard ratio, 0.94; 95% confidence interval, 0.27 to 3.24; P = 0.92). No exit-site infections occurred. During the study period, 2% of staphylococcal isolates within the hospital were mupirocin resistant. Thrice-weekly application of standardized antibacterial honey to hemodialysis catheter exit sites was safe, cheap, and effective and resulted in a comparable rate of catheter-associated infection to that obtained with mupirocin (although the study was not adequately powered to assess therapeutic equivalence). The effectiveness of honey against antibiotic-resistant microorganisms and its low likelihood of selecting for further resistant strains suggest that this agent may represent a satisfactory alternative means of chemoprophylaxis in patients with central venous catheters.

Weather parameters and nosocomial bloodstream infection: a case-referent study

OBJECTIVE To evaluate if temperature and humidity influenced the etiology of bloodstream infections in a hospital from 2005 to 2010.METHODS The study had a case-referent design. Individual cases of bloodstream infections caused by specific groups or pathogens were compared with several references. In the first analysis, average temperature and humidity values for the seven days preceding collection of blood cultures were compared with an overall “seven-days moving average” for the study period. The second analysis included only patients with bloodstream infections. Several logistic regression models were used to compare different pathogens and groups with respect to the immediate weather parameters, adjusting for demographics, time, and unit of admission.RESULTS Higher temperatures and humidity were related to the recovery of bacteria as a whole (versus fungi) and of gram-negative bacilli. In the multivariable models, temperature was positively associated with the recovery of gram-negative bacilli (OR = 1.14; 95%CI 1.10;1.19) or Acinetobacter baumannii (OR = 1.26; 95%CI 1.16;1.37), even after adjustment for demographic and admission data. An inverse association was identified for humidity.CONCLUSIONS The study documented the impact of temperature and humidity on the incidence and etiology of bloodstream infections. The results correspond with those from ecological studies, indicating a higher incidence of gram-negative bacilli during warm seasons. These findings should guide policies directed at preventing and controlling healthcare-associated infections.

Vigilância Prospectiva da Infecção Relacionada com a Prestação de Cuidados de Saúde numa Unidade de Cuidados Intensivos Neonatais – Uma Experiência de Seis Anos

As infecções associadas à prestação de cuidados de saúde são ocorrências temíveis em unidades de cuidados intensivos neonatais (UCIN). A vigilância prospectiva dá aos neonatologistas um conhecimento da sua frequência, dos agentes mais comuns isolados na sua unidade e respectiva sensibilidade, influenciando de modo positivo as tentativas de controlar a sua frequência. Objectivo: Divulgar os resultados da vigilância epidemiológica da infecção de origem hospitalar numa UCIN. População e Métodos: Todos os recém-nascidos (RN) admitidos na unidade são registados, independentemente da idade gestacional, do peso ao nascer e da idade na admissão. Todos os episódios de infecção sistémica ocorridos desde a admissão até à alta são registados: sépsis, septicémia, pneumonia e meningite. É classificada como infecção de origem hospitalar a que surge 72h após a admissão. Resultados: No período de seis anos decorrido entre 2002 e 2007, foram tratados 1648 recém-nascidos a que corresponderam 27 862 dias de tratamento, 4 395 dias de ventilação e 10 537 dias de cateterismo venoso central (CVC); 261 RN eram de muito baixo peso (MBP) e 369 foram submetidos a grande cirurgia. Houve 242 episódios de infecção em 229 doentes. As taxas de infecção foram as seguintes (mediana e limites): RN infectados em % de tratados 13% (10,4%-17,4%); septicémia/100 doentes tratados-6,5 (3,8-11,3); septicémia/1000 dias doente-3,7 (3-6,2); septicémia/1000dias de CVC-4.1 (0,9-5,8); infecção por Staphylococcus coagulase negativa (SCN) em RN MBP - 9,8% (4%-12,5%); pneumonia relacionada com tubo traqueal/1000 dias de tubo traqueal – 3,2 (0-9,1). O agente mais frequentemente isolado foi o SCN. Conclusão: A vigilância epidemiológica é um instrumento muito útil para conhecer as taxas de infecção de uma unidade de saúde e a sua tendência, assim como os microorganismos e respectiva sensibilidade. Esse conhecimento constitui a base a partir da qual se pode tentar reduzir a sua prevalência.

Enterobacteriaceae ISOLATES FROM THE ORAL CAVITY OF WORKERS IN A BRAZILIAN ONCOLOGY HOSPITAL

The evaluation of workers as potential reservoirs and disseminators of pathogenic bacteria has been described as a strategy for the prevention and control of healthcare-associated infections (HAIs). The aim of this study was to evaluate the presence of Enterobacteriaceae in the oral cavity of workers at an oncology hospital in the Midwest region of Brazil, as well as to characterize the phenotypic profile of the isolates. Saliva samples of 294 workers from the hospital’s healthcare and support teams were collected. Microbiological procedures were performed according to standard techniques. Among the participants, 55 (18.7%) were colonized by Enterobacteriaceae in the oral cavity. A total of 64 bacteria were isolated, including potentially pathogenic species. The most prevalent species was Enterobacter gergoviae (17.2%). The highest rates of resistance were observed for β-lactams, and 48.4% of the isolates were considered multiresistant. Regarding the enterobacteria isolated, the production of ESBL and KPC was negative. Nevertheless, among the 43 isolates of the CESP group, 51.2% were considered AmpC β-lactamase producers by induction, and 48.8% were hyper-producing mutants. The significant prevalence of carriers of Enterobacteriaceae and the phenotypic profile of the isolates represents a concern, especially due to the multiresistance and production of AmpC β-lactamases.

Infecções urinárias adquiridas no hospital : resultados de um estudo de coorte realizado num serviço de medicina interna

RESUMO - Introdução: As infecções associadas aos cuidados de saúde são um importante problema de saúde pública. Entre elas, as infecções urinárias são as mais frequentes associando‐se a elevados custos e morbilidade. Pretende‐se caracterizar as ITU adquiridas no Hospital (ITUaH) ocorridas num serviço de Medicina Interna de um hospital português. Métodos: Efectuou‐se um estudo de coorte (histórica) para determinação da incidência da ITUaH e da bacteriúria assintomática. Analisaram-se os dados correspondentes a uma amostra aleatória sistemática de 388 doentes, representativa dos 3492 admissões ocorridas, em 2014, nesse Serviço. Resultados: A taxa de incidência global de ITUaH foi de 6,2% (24/388; IC 95%:[3,8--‐8,6%]). Ocorreram 19,76 ITU por mil dias de cateter vesical (ITUaCV) e 4,17 ITUaCV por mil dias de internamento. A taxa de incidência de ITUaCV foi de 4% (15/388; IC 95%:[2%--‐6%]). Oitenta por cento destas infecções ocorreram em doentes sem indicação para a algaliação. Um quarto dos doentes desta coorte foram algaliados (24,7%; IC 95%: [20%--‐29%]), não se verificando indicação para o procedimento em 36,5% dos casos. Os principais factores de risco para a algaliação identificados foram a dependência total (OR: 24,47; IC 95%: [5,50--‐ 108,87]; p<0,001) a dependência grave (OR:11,43; IC 95% [2,56--‐50,93]; p=0,001) (escala de Barthel) e a carga de doença (OR: 1,19; IC 95% [1,03--‐1,38]; p=0,017) (índice de comorbilidade de Charlson). Foram utilizados CV em 759 dias dos 3591 dias de internamento quantificados neste estudo (21%). A Taxa de incidência de Bacteriúria Assintomática (BA) foi de 4,4% (IC 95%:[2--‐6%]). Cerca de 60% (10/17) desses doentes foram submetidos a tratamento contrariamente às recomendações clínicas actuais. Conclusões: Este estudo evidencia a necessidade de implementação de estratégias de prevenção, das quais se destaca a redução do número de algaliações. O tratamento da BA deve ser evitado.

Protecting Patients and Staff (PDF 188 KB)

A Strategy for Prevention and Control of Healthcare Associated Infections in NI 2005 - 2010

Don't infect: protect

This poster is part of an extension of the cleanyourhands campaign, aimed at preventing the spread of healthcare associated infections (HCAIs) in community healthcare settings including primary care and dental services, residential and nursing homes (including independent sector homes), hospices and independent clinics/hospitals. It is designed to heighten awareness among staff in clinical/treatment areas of their power to help protect patients from avoidable infections by cleaning their hands. Due to licensing restrictions, this poster is not available for download. Limited numbers are available from local HSC Trusts (Belfast HSCT and South Eastern HSCT on 028 9056 5862; Southern HSCT on 028 3741 2887; Northern HSCT on 028 2563 5575; Western HSCT on 028 7186 5127).

Don't put patients at risk: make hand hygiene your priority

This poster is part of an extension of the cleanyourhands campaign, aimed at preventing the spread of healthcare associated infections (HCAIs) in community healthcare settings including primary care and dental services, residential and nursing homes (including independent sector homes), hospices and independent clinics/hospitals. It is designed to heighten awareness among staff in clinical/treatment areas of their power to help protect patients from avoidable infections by cleaning their hands. Due to licensing restrictions, this poster is not available for download. Limited numbers are available from local HSC Trusts (Belfast HSCT and South Eastern HSCT on 028 9056 5862; Southern HSCT on 028 3741 2887; Northern HSCT on 028 2563 5575; Western HSCT on 028 7186 5127).

Clean hands? It's OK to ask

This poster is part of an extension of the cleanyourhands campaign, aimed at preventing the spread of healthcare associated infections (HCAIs) in community healthcare settings including primary care and dental services, residential and nursing homes (including independent sector homes), hospices and independent clinics/hospitals. It is designed to heighten awareness in patient/relative waiting areas of how healthcare staff can help protect patients from avoidable infections by cleaning their hands. Due to licensing restrictions, this poster is not available for download. Limited numbers are available from local HSC Trusts (Belfast HSCT and South Eastern HSCT on 028 9056 5862; Southern HSCT on 028 3741 2887; Northern HSCT on 028 2563 5575; Western HSCT on 028 7186 5127).

Don't walk past: clean hands only take a minute

This poster is part of an extension of the cleanyourhands campaign, aimed at preventing the spread of healthcare associated infections (HCAIs) in community healthcare settings including primary care and dental services, residential and nursing homes (including independent sector homes), hospices and independent clinics/hospitals. It is designed for pump dispenser areas to heighten awareness of protecting patients from avoidable infections by cleaning of hands. Due to licensing restrictions, this poster is not available for download. Limited numbers are available from local HSC Trusts (Belfast HSCT and South Eastern HSCT on 028 9056 5862; Southern HSCT on 028 3741 2887; Northern HSCT on 028 2563 5575; Western HSCT on 028 7186 5127).

Hand cleaning technique

This reversible poster is part of an extension of the cleanyourhands campaign, aimed at preventing the spread of healthcare associated infections (HCAIs) in community healthcare settings including primary care and dental services, residential and nursing homes (including independent sector homes), hospices and independent clinics/hospitals. It is designed for pump dispenser or handwashing areas to heighten awareness of protecting patients from avoidable infections by cleaning of hands using proper techniques.

Clean your hands: hand hygiene in the community - guidance

This leaflet is part of an extension of the cleanyourhands campaign, aimed at preventing the spread of healthcare associated infections (HCAIs) in community healthcare settings including primary care and dental services, residential and nursing homes (including independent sector homes), hospices and independent clinics/hospitals. It describes the campaign and outlines the campaign resources. Due to licensing restrictions, this folder is not available for download. Limited numbers are available from local HSC Trusts (Belfast HSCT and South Eastern HSCT on 028 9056 5862; Southern HSCT on 028 3741 2887; Northern HSCT on 028 2563 5575; Western HSCT on 028 7186 5127).

Clean your hands: hand hygiene in the community - guidance

This�leaflet is part of an extension of the cleanyourhands campaign, aimed at preventing the spread of healthcare associated infections (HCAIs) in community healthcare settings including primary care and dental services, residential and nursing homes (including independent sector homes), hospices and independent clinics/hospitals. It describes the campaign and outlines the campaign resources.