Nasal behave of staphylococcus aureus in personal of the hospital in intensive cares adults units (original) (raw)
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2003
Staphylococcus aureus (Sau) is a frequent agent of infections in breast feeding babies and children being the colonization of nasal fossas the usual infection source. The microorganism dissemination in a hospital context occurs by aerosolization and interpersonal contact between hospital staff and patients. This study determined the prevalence of nasal carriers of Sau in the hospital staff of the Professorship of Pediatrics of the Hospital de Clínicas (CPHC), the Maternal-Child Center of the National University of Asuncion (CMI) and the Hospital Santísima Trinidad of the Ministry of Health and Public Welfare (HST). The sensitivity pattern to antimicrobials of the isolated strains was also evaluated. Samples were collected by nasal swabbing, transported in Stuart medium to Sanabria R y col. 30 the laboratory of Microbiology of the IICS, cultured in 5% sheep blood agar and incubated at 35°C in CO environment for 48 hs. Identification of Staphylococcus aureus was carried out by convent...
Revista Latino-Americana de Enfermagem, 2009
Nasopharyngeal colonization with Methicillin-resistant Staphylococcus aureus (MRSA) is common in critically ill patients, but its effect on patient prognosis is not fully elucidated. A retrospective cohort study was carried out enrolling 122 patients from an intensive care unit who were screened weekly for nasopharyngeal colonization with MRSA. The outcomes of interest were: general mortality and mortality by infection. Several exposure variables (severity of illness, procedures, intercurrences and MRSA nasopharyngeal colonization) were analyzed through univariate and multivariable models. Factors significantly associated with mortality in general or due to infection were: APACHE II and lung disease. The performance of surgery predicted favorable outcomes. MRSA colonization did not predict mortality in general (OR=1.02; 95%CI=0.35-3.00; p=0.97) or by infectious causes (OR=0.96; 95%CI=0.33-2.89; p=0.96). The results suggest that, in the absence of severity of illness factors, coloniz...
Nasal carriage of Staphylococcus aureus in a students' community
2013
Objective: To identify nasal carriage of Staphylococcus aureus in a bacteriology students’ community. Materials and Methods: The sample was composed of 121 students selected via stratified random sampling. All S. aureus strains were identified using conventional methods. Antibiotic sensivity was determined by the Kirby-Bauer method. A survey was applied in order to identify risk factors associated. Results: In the population studied, 14.88% (18/121) were carriers of bacteria. 19 S. aureus isolates were obtained, no methicillin-resistant strains were detected. We found one D-test positive S. aureus strain. The principal risk factor found was contact with healthcare workers (33.33%; 6/18). Conclusions: We found a low frequency of S. aureus nasal carriage and risk factors associated.
[Study of Staphylococcus aureus infections in a general acute care hospital (2002-2013)]
Revista Argentina de microbiologia, 2017
A twelve-year retrospective review of Staphylococcus aureus infections in adult and pediatric patients (AP and PP respectively) assisted in the Hospital Interzonal General de Agudos Evita in Lanús was performed to determine the incidence, foci of infection, the source of infection and to analyze the profile of antimicrobial resistance. An amount of 2125 cases of infection in AP and 361 in PP were documented. The incidence in AP decreased significantly in the last three years (χi(2); p<0.05); in PP it increased significantly during the last five years (χ(2); p<0.0001). In both populations was detected a notable increase in skin infections and associated structures (PEA) in bacteremia to the starting point of a focus on PEA, and in total S. aureus infections of hospital-onset (χ(2); p < 0.005). Methicillin-resistance (MRSA) increased from 28 to 78% in PP; in AP it remained around 50%, with significant reduction in accompanying antimicrobial resistance to non-β-lactams in both...
Estudio epidemiológico de portadores nasales de Staphylococcus aureus en centros de mayores
2007
SUMMARY The observation of an increasing number of methicillin-resistant Staphylococcus aureus (MRSA) isolates in some population groups prompted us to study the risk factors and the epidemiological profile of S. aureus nasal carriage in healthy adults 65 years of age and older residing in the province of Segovia. Attention was particularly focused on the possibility that some of the infections were community-acquired. We conducted a prospective and observational study of people who usually visited senior citizen centers in the province of Segovia (Carbonero, Cuellar, Cantalejo) and its capital. The analysis period took place between January and May 2003. Infections were classified as community-acquired, hospital-acquired or health-care associated. Isolates of methicillin-resistant (MRSA) and methicillin-susceptible S. aureus (MSSA) were studied by pulsed-field gel electrophoresis (PFGE). There were 34 (19.5%) The prevalence of nasal carriage of S. aureus was 19.5% and that for MRSA...
[Nosocomial infections in long-term health care facilities.]
Enfermedades Infecciosas y Microbiología Clínica
The long-term care facilities (LTCF) are the health care level that integrates medical assistance and social services according to the requirements of its beneficiaries. There is a great variability depending on the users profile, the professional staff and accessibility to technical resources for diagnosis, treatment or rehabilitation. In LTCF different factors are shaping a challenge in the infection control. These factors are high prevalence of infection and colonization by multiresistant microorganisms (MROs), a high rate of, often inadequate, antibiotic prescriptions, the high transfer of hospital patients, and the lack of diagnostic resources. In infection studies in LTCF, one of the main problems is the lack of standard, and well defined, infection criteria. The special features of infections in the elderly population, together with the limited resources, make it necessary to establish standard and worldwide validated criteria in order achieve appropriate monitoring and contr...
Revista medica del Instituto Mexicano del Seguro Social
Nosocomial infections (NIs) are a quality indicator of health care centers. However, a decrement of NIs occurrence can be the cause of an effective prevention program or it could be the result of a poor NI case research. The patient's characteristics and the complexity of his/her ailment are related to a higher risk of mortality. The study was made to estimate the NIs prevalence, to know the NIs etiology, and to analyze the factors that determine the NI patient's death. All hospitalized patients from January to December 2003 were included in the study. NI was defined as that which has its origin at the hospital. The risk factors of a patient with NI were analyzed in order to explain the death of the infected patient; we also studied the etiology of NIs. Simple frequencies, Mann and Whitney U, chi2, and the exact Fishertestwere used. Taking the risk factors of the patient with NIs and the kind of NI, a multivariate analysis was made to explain the infected patient's death...
Nasal carriage of Streptococcus pneumoniae in elderly subjects according to vaccination status
Revista Medica De Chile, 2007
Background: S pneumoniae is the main cause of communityacquired pneumonia in the elderly, group that concentrates 95% of deaths. Aim: To assess the prevalence of nasal carriage of S pneumoniae in institutionalized elderly patients. Material and methods: One hundred eighteen institutionalized subjects aged over 60 years (65 males) were enrolled. Since they were also participating in a controlled protocol related to the immunogenicity of an anti-pneumococcal vaccine, our investigation was also blind and randomized. According to randomization, they received pneumococcal or tetanic vaccine. Nasal swab cultures were taken at the beginning of the trial and two months after vaccination. According to recommended methods, we identified S pneumoniae, the serotypes and their antimicrobial susceptibility. Results: In the first nasal sample, 16% of subjects were positive for S pneumoniae. The second sample was positive in 12%. Of the 33 isolated serotypes, 9.1% demonstrated intermediate resistan...