"Staphylococcus aureus e Staphylococcus aureus meticilina resistentes (MRSA) em profissionais de saúde e as interfaces com as infecções nosocomiais"

Palos, Marinésia Aparecida Prado

doi:10.11606/t.83.2006.tde-15012007-174556

Cited by 5 publications

(5 citation statements)

References 65 publications

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“…The present results show a higher prevalence of MRCoNS in the intensive care unit. Interestingly, Palos (2006) observed a higher prevalence of healthcare workers carrying MRSA in intensive care units, in agreement with the present study. The higher prevalence of MRCoNS in the intensive care unit observed in the present study might be related to the invasive procedures performed in this unit and the conditions of the patient when admitted to this ward.…”

Section: Discussionsupporting

confidence: 93%

Methods for Detection of Oxacillin Resistance among Coagulase-Negative Staphylococci Recovered from Patients with Bloodstream Infections at the University Hospital in Brazil

Ustulin¹,

Cunha²

2012

JVM

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Coagulase-negative staphylococci (CoNS) are among the main causative agents of nosocomial infections, and multi-resistant strains has become a major issue over the past decades. The objectives of this study are to determine the frequency of oxacillin resistance among CoNS strains isolated from blood cultures of patients admitted at the University Hospital of the Faculty of Medicine of Botucatu, Brazil, and to compare phenotypic methods with the gold standard (amplification of the mecA gene) used for the detection of methicillin resistant-CoNS. Among the 103 CoNS strains analyzed, 85 were identified as S. epidermidis, ten as S. warneri, five as S. haemolyticus, one as S. capitis, one as S. hominis and one as S. lugdunensis. Amplification of the mecA gene revealed 85 (82.5%) positive strains. Of these, 81 (95.3%) were resistant by the oxacillin and cefoxitin disk diffusion method, 82 (96.5%) by screening on Mueller-Hinton agar supplemented with 4 µg/ml oxacillin and 4% NaCl and 84 (98.8%) by the E-test. The mecA gene was detected in 82.3% of the S. epidermidis isolates and in seven of the ten S. warneri isolates. Among the phenotypic methods studied, the E-test yielded the best results when compared to the gold standard. The results showed that most of the CoNS strains were resistant to oxacillin and to multiple drugs; a fact making treatment of infections caused by these microorganisms more difficult.

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Section: Discussionsupporting

confidence: 93%

Methods for Detection of Oxacillin Resistance among Coagulase-Negative Staphylococci Recovered from Patients with Bloodstream Infections at the University Hospital in Brazil

Ustulin¹,

Cunha²

2012

JVM

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“…This microorganism stands out among both hospital and community infection causes. Despite the relevance of this bacteria as an etiological agent of nosocomial infections and the importance of health professionals as important disseminators of this microorganism, little research has been developed in Brazil in this regard (11) .…”

Section: Discussionmentioning

confidence: 99%

“…Thus, it is important to monitor these strains at the study location. A research that involved to medical and nursing teams at the ICU, medical clinic, surgical clinic, gynecology/obstetrics and surgical center of a health institution in Goiás evidenced a sensitivity rate of only 53.3% among isolated S. aureus strains (11) . Studies appoint that resistance against the glycopeptide vancomycin should preferably be determined through more sensitive techniques, such as the plate screening technique, the minimum inhibitory concentration determination test (Etest) or genotypic detection (19) .…”

Section: Discussionmentioning

confidence: 99%

Colonização pelo Staphylococcus aureus em profissionais de enfermagem de um hospital escola de Pernambuco

Silva

Samico

Cardoso

et al. 2012

Rev. esc. enferm. USP

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This study was performed with the objective to identify the prevalence of colonization by Staphylococcus aureus in nursing professionals from a teaching hospital in Pernambuco, and evaluate the resistance profile of these isolates. To do this, we performed a cross-sectional study where biological samples were collected from the hands and nasal cavities of the subjects. S. aureus was identified using agar (blood agar and mannitol salt) via catalase and coagulase tests. The sensitivity profile was determined by Kirby Bauer technique and determination of methicillin resistance was performed with oxacillin screening with sodium chloride (NaCl) addition. Of the 151 professionals evaluated, 39 were colonized which showed a prevalence of 25.8%. Among the variables studied, age and use of PPE were associated with colonization by the organism. Of all the isolates, only five were resistant to methicillin.

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“…(414/888), resultados semelhantes aos encontrados por Palos (2006), que identificou 50% de positividade nas amostras. Smith et al (2003a), ao realizarem um estudo retrospectivo de 5.005 espécimes de cavidade bucal de pacientes, obtiveram uma positividade de 20,3% (1017/5005) para S. aureus, dos quais 4,9% (50/1017) foram resistentes à meticilina.…”

Section: Neste Estudo Tivemos Como Um Dos Objetivos Identificar a Preunclassified

Staphylococcus aureus e Staphylococcus aureus resistente à meticilina em trabalhadores de um hospital universitário: colonização e crenças em saúde

Cruz¹

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Fortaleza CR, Melo EC, Fortaleza CMCB. Nasopharyngeal colonization with methicillin-resistant staphylococcus aureus and mortality among patients in an intensive care unit. Rev Latino-am Enfermagem 2009 setembro-outubro; 17(5):677-82. 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, colonization with MRSA is not associated with unfavorable outcomes. DESCRIPTORS: Staphylococcus aureus; intensive care units; mortality COLONIZACIÓN NASAL POR EL STAPHYLOCOCCUS AUREUS RESISTENTE A LA METICILINA Y MORTALIDAD EN PACIENTES DE UNA UNIDAD DE TERAPIA INTENSIVA La colonización nasofaríngea por el Staphylococcus aureus resistente a la meticilina (Methicillin-resistant S.aureus-MRSA) es común en pacientes críticamente enfermos, pero su efecto sobre el pronóstico no está completamente esclarecido. Fue realizado un estudio de Cohorte retrospectivo con 122 pacientes de una Unidad de Terapia Intensiva que realiza semanalmente exámenes para constatar la colonización nasofaríngea por MRSA. Lo encontrado de interés fue: mortalidad general y mortalidad por causas infecciosas. Diversas variables de exposición (gravedad, procedimientos ocurrencias y colonización nasofaríngea por MRSA) fueran analizadas en modelos univariados y multivariados. Los factores asociados significativamente a la mortalidad en general o por causas infecciosas fueran: APACHE II y enfermedad pulmonar. La realización de cirugía predijo mejor el pronóstico. La colonización por MRSA no predijo la mortalidad en general (OR=1.02; IC95%=0.35-3.00; p=0.97) o por causas infecciosas (OR=0.96; IC95%=0.33-2.89; p=0.96). Los resultados sugieren que, en la ausencia de factores de gravedad, la colonización por MRSA no se asocia al peor pronóstico. A colonização de nasofaringe por Staphylococcus aureus, resistente à meticilina (Methicillin-resistant S.aureus-MRSA), é comum em pacientes criticamente doentes, mas seu significado prognóstico não é inteiramente conhecido. Realizou-se estudo de coorte retrospectivo com 122 pacientes de uma unidade de terapia intensiva que realizaram triagem semanal para colonização por MRSA. Os desfechos de interesse foram: mor...

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"Staphylococcus aureus e Staphylococcus aureus meticilina resistentes (MRSA) em profissionais de saúde e as interfaces com as infecções nosocomiais"

Cited by 5 publications

References 65 publications

Methods for Detection of Oxacillin Resistance among Coagulase-Negative Staphylococci Recovered from Patients with Bloodstream Infections at the University Hospital in Brazil

Methods for Detection of Oxacillin Resistance among Coagulase-Negative Staphylococci Recovered from Patients with Bloodstream Infections at the University Hospital in Brazil

Colonização pelo Staphylococcus aureus em profissionais de enfermagem de um hospital escola de Pernambuco

Staphylococcus aureus e Staphylococcus aureus resistente à meticilina em trabalhadores de um hospital universitário: colonização e crenças em saúde

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