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BACKGROUND: The clinical features of central nervous system (CNS) sporotrichosis are derived from case reports and a limited series of cases. Our objective was to carry out a systematic review and meta-analysis of CNS sporotrichosis. METHODS: We searched PubMed/MEDLINE, Embase, Scopus, and LILACS on 9 September 2023. Our inclusion criteria were documentation of Sporothrix and demonstrated CNS involvement. A metaproportion or metamean analysis was performed to estimate a summary proportion with 95% confidence intervals. RESULTS: We included 52 cases of CNS sporotrichosis published from 1966 to 2023. Forty-six patients were male (88%, 95% CI: 77-95), and the mean age was 39 years (95% CI: 36-43). Close contact with cats was reported in 55% of cases (95% CI: 37-72). Thirty-two (61.5%) patients were from Brazil, 18 patients from the United State of America (34.6%). Only two Sporothrix species were reported: S. schenckii (26/41, 63%), and S. brasiliensis (15/41, 37%). The most common neurological symptom was headache. Meningitis was chronic in approximately 80% of cases. A significant majority of the patients were immunocompromised. HIV infection was the primary cause of immunosuppression (85%, 95% CI: 61-95). Overall mortality was 56% (22/39). The comparison of Kaplan-Meier survival curve showed a higher mortality with a statistically significant difference in immunosuppressed patients (p = .019). CONCLUSION: CNS sporotrichosis represents a notable cause of chronic meningitis, especially in individuals living in the Americas with HIV infection and concurrent skin lesions.
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Antifúngicos , Sporothrix , Esporotricose , Esporotricose/tratamento farmacológico , Esporotricose/diagnóstico , Humanos , Sporothrix/isolamento & purificação , Antifúngicos/uso terapêutico , Gatos , Masculino , Adulto , Feminino , Animais , Brasil/epidemiologia , Infecções Fúngicas do Sistema Nervoso Central/tratamento farmacológico , Infecções Fúngicas do Sistema Nervoso Central/microbiologia , Infecções Fúngicas do Sistema Nervoso Central/diagnóstico , Infecções Fúngicas do Sistema Nervoso Central/mortalidade , Estados Unidos/epidemiologiaRESUMO
Antimicrobial resistance (AMR) is a global health challenge that threatens humans, animals and the environment. Evidence is emerging for a role of healthcare infrastructure, environments and patient pathways in promoting and maintaining AMR via direct and indirect mechanisms. Advances in vaccination and monoclonal antibody therapies together with integrated surveillance, rapid diagnostics, targeted antimicrobial therapy and infection control measures offer opportunities to address healthcare-associated AMR risks more effectively. Additionally, innovations in artificial intelligence, data linkage and intelligent systems can be used to better predict and reduce AMR and improve healthcare resilience. In this Review, we examine the mechanisms by which healthcare functions as a driver, reservoir and amplifier of AMR, contextualized within a One Health framework. We also explore the opportunities and innovative solutions that can be used to combat AMR throughout the patient journey. We provide a perspective on the current evidence for the effectiveness of interventions designed to mitigate healthcare-associated AMR and promote healthcare resilience within high-income and resource-limited settings, as well as the challenges associated with their implementation.
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We aimed to characterise vaccine-induced protection against COVID-19 during five waves caused by Variants of Concern (VOCs). This is a nested case-control study of 3,972 HCW primarily vaccinated with CoronaVac (98%) that evaluated symptomatic SARS-CoV-2 breakthrough infections (BI) in almost two-years follow-up until the 3rd Omicron wave. Predictors of protection against SARS-CoV-2 BI were analysed using conditional logistic regression models. We included 1,491 SARS-CoV-2 breakthrough cases, mostly mild, and 2,962 controls. Most participants (90%) had received at least one booster before the onset of the Omicron waves, mainly BNT162b2. A multivariate logistic regression showed that vaccine-induced protection against BI wanes after six months regardless of the number of monovalent booster doses. Additionally, booster dose with BNT162b2 showed a trend for higher protection compared to CoronaVac during the Omicron waves. In conclusion, immunity of monovalent booster doses against SARS-CoV-2 is short-lasting. Individuals previously vaccinated with an inactivated vaccine should receive a BNT162B2 booster dose.
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Introduction: The COVID-19 pandemic may lead to reduced physical activity (PA) in health care workers (HCWs). Objective: To evaluate leisure and transport-related PA in HCW of a COVID-19-dedicated hospital during the first wave of the COVID-19 pandemic. Methods: This is a cross-sectional study with a sample of 1,527 HCWs. Socioeconomic aspects, occupational characteristics, and engagement in leisure and transport-related PA were investigated through an online survey administered in August of 2020. Results: More than 80 % HCWs performed < 150 min/week of leisure-related PA, and 85 % performed ≤ 30 min/day transport-related PA. Being male was associated with more PA (OR: 1.93; 95 % CI:1.40-2.66) and transport-related PA; working in nursing, physical therapy, and cleaning/housekeeping services was associated with low PA (OR: 0.70; 95 % CI:0.51-0.95). Physicians and administrative staff were less active in transport-related PA. Conclusions: HCWs working in a COVID-19 hospital had low levels of PA in the domains of leisure and transportation.
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Abstract Background This study aimed to analyze the Healthcare-Associated Infections (HAI) rates and antimicrobial consumption in Intensive Care Units (ICU) in São Paulo city during the COVID-19 pandemic and compare them with the pre-pandemic period. Methods This cohort included all hospitals that reported HAI rates (Central-Line-Associated Bloodstream Infection ‒ CLABSI and Ventilator-Associated Pneumonia ‒ VAP), the proportion of microorganisms that caused CLABSI, the proportion of resistant microorganisms, and antimicrobial consumption from January 2017 ‒ December 2020. Hospitals were stratified by the number of beds, Central Venous Catheter (CVC) utilization rate, Mechanical-Ventilation (MV) utilization rate, and type of funding. Statistical analyses were based on time-series plots and regression models. Results 220 ICUs were included. The authors observed an abrupt increase in CLABSI rates after the pandemic onset. High CLABSI rates during the pandemic were associated with hospital size, funding (public and non-profit private), and low CVC use (≤ 50%). An increase in VAP rates was associated with public hospitals, and high MV use (> 35%). The susceptibility profile of microorganisms did not differ from that of the pre-pandemic period. polymyxin, glycopeptides, and antifungal use increased, especially in COVID-19 ICUs. Conclusions HAI increased during COVID-19. The microorganisms' susceptibility profile did not change with the pandemic, but the authors observed a disproportionate increase in large-spectrum antimicrobial drug use.
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Abstract Purpose: The aim of this study was to describe the incidence and risk factors for hospital readmission and infection during the months after COVID-19 hospital admission. Methods: This prospective study included adult patients who were hospitalized due to COVID-19 and had been discharged from April 2020 to August 2020. All patients had a medical evaluation with a structured questionnaire 6 to 11 months after hospital admission. The authors included only patients with confirmed COVID-19 by RT-PCR. Patients with pregnant/postpartum women, with a proven COVID-19 reinfection or incapable of answering the questionnaire were excluded. Results: A total of 822 patients completed the follow-up assessment, and 68% reportedat least one recurrent symptom related to COVID-19. The most frequent symptom was myalgia (42%). Thirty-two percent of patients visited an emergency room after COVID-19 hospitalization, and 80 (10%) patients required re-hospitalization. Risk factors for hospital readmission were orotracheal intubation during COVID-19 hospitalization (p = 0.003, OR = 2.14), Charlson score (p = 0.002, OR = 1.21), congestive heart failure (p = 0.005, OR = 2.34), peripheral artery disease (p = 0.06, OR= 2.06) and persistent diarrhea after COVID-19 hospitalization discharge (p= 0.02, OR = 1.91). The main cause of hospital readmission was an infection, 43 (54%). Pneumonia was the most frequent infection (29%). Conclusions: The presence of symptoms after six months of COVID-19 diagnosis was frequent, and hospital readmission was relatively high. HIGHLIGHTS 32% of the patients visited an emergency room after COVID-19 hospitalization. The rate of hospital readmission after COVID-19 hospitalization is high, in the present sample 10% of patients needed a second hospitalization in 6-months Patients with persistent diarrhea after COVID-19 discharge had two times more chance to have another hospitalization in the next 6-months.
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Abstract Background The relationship between Multidrug Resistant-Gram Negative Bacteria (MDR-GNB) infection and colonization in critically ill COVID-19 patients has been observed, however, it is still poorly understood. This study evaluated the risk factors for acquiring MDR-GNB in patients with severe COVID-19 in Intensive Care Units (ICU). Methods This is a nested case-control study in a cohort of 400 adult patients (≥ 18 years old) with COVID-19, hospitalized in the ICU of 4 hospitals in the city of Curitiba, Brazil. Cases were critical COVID-19 patients with one or more MDR GNB from any surveillance and/or clinical cultures were taken during their ICU stay. Controls were patients from the same units with negative cultures for MDR-GNB. Bivariate and multivariate analyses were done. Results Sixty-seven cases and 143 controls were included. Independent risk factors for MDR bacteria were: male gender (OR = 2.6; 95% CI 1.28‒5.33; p = 0.008); the hospital of admission (OR = 3.24; 95% CI 1.39‒7.57; p = 0.006); mechanical ventilation (OR = 25.7; 95% CI 7.26‒91; p < 0.0001); and desaturation on admission (OR = 2.6; 95% CI 1.27‒5.74; p = 0.009). Conclusions Male gender, desaturation, mechanical ventilation, and the hospital of admission were the independent factors associated with MDR-GNB in patients in the ICU with COVID-19. The only modifiable factor was the hospital of admission, where a newly opened hospital posed a higher risk. Therefore, coordinated actions toward a better quality of care for critically ill COVID-19 patients are essential.
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OBJECTIVE: This study aimed to evaluate the occurrence of coronavirus disease 2019 (COVID-19) in hemodialysis facilities and the occurrence of and risk factors for clustering of COVID-19 cases. METHODS: We conducted a cross-sectional online survey between March and July 2020, in all dialysis facilities in São Paulo state, using Google Forms. The online questionnaire contained questions addressing specific components of infection prevention and control practices and the number of cases during the COVID-19 pandemic. RESULTS: A total of 1,093 (5%) COVID-19 cases were reported among 20,984 patients; approximately 56% of the facilities had ≥1 cluster. Most facilities implemented various measures (such as allocation of dedicated COVID-19 areas/shifts, symptom screening, environmental disinfection, and maintenance of adequate ventilation) to prevent the transmission of severe acute respiratory syndrome coronavirus 2. Clustering of COVID-19 cases was suspected in only 7% of dialysis facilities. The only variable associated with this event was the performance of aerosol-generating procedures (odds ratio: 4.74; 95% confidence interval: 1.75-12.86). CONCLUSION: Attention should be paid to avoiding the performance of aerosol-generating procedures in dialysis facilities and monitoring the clustering of cases.
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Humanos , Pandemias , COVID-19 , Brasil/epidemiologia , Estudos Transversais , Diálise Renal , Controle de Infecções , SARS-CoV-2RESUMO
OBJECTIVES: Bacterial and aseptic meningitis after neurosurgery can present similar clinical signs and symptoms. The aims of this study were to develop and test a molecular method to diagnose bacterial meningitis (BM) after neurosurgery. METHODS: A 16S ribosomal RNA gene PCR-based strategy was developed using artificially inoculated cerebrospinal fluid (CSF) followed by sequencing. The method was tested using CSF samples from 43 patients who had undergone neurosurgery and were suspected to suffer from meningitis, and from 8 patients without neurosurgery or meningitis. Patients were classified into five groups, confirmed BM, probable BM, possible BM, unlikely BM, and no meningitis. RESULTS: Among the samples from the 51 patients, 21 samples (41%) were culture-negative and PCR-positive. Of these, 3 (14%) were probable BM, 4 (19%) were possible BM, 13 (62%) were unlikely BM, and 1 (5%) was meningitis negative. Enterobacterales, non-fermenters (Pseudomonas aeruginosa and Acinetobacter baumannii), Staphylococcus haemolyticus, Granulicatella, Variovorax, and Enterococcus cecorum could be identified. In the group of patients with meningitis, a good agreement (3 of 4) was observed with the results of cultures, including the identification of species. CONCLUSION: Molecular methods may complement the diagnosis, guide treatment, and identify non-cultivable microorganisms. We suggest the association of methods for suspected cases of BM after neurosurgery, especially for instances in which the culture is negative.
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Humanos , Meningites Bacterianas/diagnóstico , Neurocirurgia , RNA Ribossômico 16S/genética , Reação em Cadeia da Polimerase , Sensibilidade e Especificidade , EnterococcusRESUMO
OBJECTIVES: Antimicrobial stewardship programs (ASPs) comprise coordinated interventions designed to improve antimicrobial use. Understanding the current structure of ASP hospitals will support interventions for the improvement of these programs. This study aimed to describe the status of ASPs in hospitals in São Paulo, Brazil. METHODS: A cross-sectional survey was conducted on the ASPs of hospitals in the state of São Paulo from March to July 2018. Through interviews by telephone or e-mail, we queried which components of the Infectious Diseases Society of America/Society for Healthcare Epidemiology of America and Centers for Disease Control and Prevention guidelines were implemented. RESULTS: The response rate was 30% (28/93 hospitals), and 26 hospitals (85%) reported having a formal ASP. The most frequently implemented strategies were antimicrobial surgical prophylaxis guidelines (100%), empiric sepsis guidelines (93%), and the presence of ASP team members during bedside rounds (96%). The least commonly implemented strategies included prior authorization for all antimicrobials (11%), pharmacokinetic monitoring, and an adjustment program for patients on IV aminoglycosides (3%). Regarding the metrics of the ASP, the most common indicator was the rate of antimicrobial resistance (77%). Eighteen hospitals evaluated antimicrobial consumption using defined daily dose, and only 29% evaluated the days of therapy; 61% of hospitals reported their results to the hospital administration and 39% to the prescribers. CONCLUSIONS: Most hospitals have a formal and active ASP, but with timely actions. We observed inconsistencies between what program leaders understand as the main objective of ASP and the metrics used to evaluate it. Part of the effort for the next few years should be to improve program evaluation metrics and to provide feedback to physicians and hospital leadership.
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Humanos , Gestão de Antimicrobianos , Brasil , Estudos Transversais , Hospitais , Antibacterianos/uso terapêuticoRESUMO
BACKGROUND Despite a highly efficacious vaccine, yellow fever (YF) is still a major threat in developing countries and a cause of outbreaks. In 2018, the Brazilian state of São Paulo witnessed a new YF outbreak in areas where the virus has not been detected before. OBJECTIVE The aim is to describe the clinical and laboratorial characteristics of severe cases of YF, evaluate viral to determine markers associated with fatal outcome. METHODS Acute severe YF cases (n = 62) were admitted to the Intensive Care Unit of a reference hospital and submitted to routine laboratorial evaluation on admission. YFV-RNA was detected in serum and urine by reverse transcription-quantitative polymerase chain reaction (RT-qPCR) and then sequenced. Patients were classified in two groups: survival or death. FINDINGS In the univariate analysis the following variables were associated with outcome: alanin aminotransferase (ALT), aspartat aminotransferase (AST), AST/ALT ratio, total bilirubin (TB), chronic kidney disease epidemiology collaboration (CKD-EPI), ammonia, lipase, factor V, international normalised ratio (INR), lactate and bicarbonate. Logistic regression model showed two independent variables associated with death: lipase [odds ratio (OR) 1.018, 95% confidence interval (CI) 1.007 to 1.030, p = 0.002], and factor V (OR -0.955, 95% CI 0.929 to 0.982, p = 0.001). The estimated lipase and factor V cut-off values that maximised sensitivity and specificity for death prediction were 147.5 U/L [area under the curve (AUC) = 0.879], and 56.5% (AUC = 0.913). MAIN CONCLUSIONS YF acute severe cases show a generalised involvement of different organs (liver, spleen, heart, kidneys, intestines and pancreas), and different parameters were related to outcome. Factor V and lipase are independent variables associated with death, reinforcing the importance of hemorrhagic events due to fulminant liver failure and pointing to pancreatitis as a relevant event in the outcome of the disease.
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Humanos , Febre Amarela/terapia , Fator V/provisão & distribuição , Carga Viral/imunologia , LipaseRESUMO
Aim: The objective was to describe an outbreak of bloodstream infections by Burkholderia cepacia complex (Bcc) in bone marrow transplant and hematology outpatients. Methods: On February 15, 2008 a Bcc outbreak was suspected. 24 cases were identified. Demographic and clinical data were evaluated. Environment and healthcare workers' (HCW) hands were cultured. Species were determined and typed. Reinforcement of hand hygiene, central venous catheter (CVC) care, infusion therapy, and maintenance of laminar flow cabinet were undertaken. 16 different HCWs had cared for the CVCs. Multi-dose heparin and saline were prepared on counter common to both units. Findings: 14 patients had B. multivorans (one patient had also B. cenopacia), six non-multivorans Bcc and one did not belong to Bcc. Clone A B. multivorans occurred in 12 patients (from Hematology); in 10 their CVC had been used on February 11/12. Environmental and HCW cultures were negative. All patients were treated with meropenem, and ceftazidime lock-therapy. Eight patients (30%) were hospitalized. No deaths occurred. After control measures (multidose vial for single patient; CVC lock with ceftazidime; cleaning of laminar flow cabinet; hand hygiene improvement; use of cabinet to store prepared medication), no new cases occurred. Conclusions: This polyclonal outbreak may be explained by a common source containing multiple species of Bcc, maybe the laminar flow cabinet common to both units. There may have been contamination by B. multivorans (clone A) of multi-dose vials.
O objetivo foi descrever um surto de infecções da corrente sanguínea por complexo B. cepacia (Bcc) nos ambulatórios de hematologia e transplante de medula óssea. Métodos: Em 15/02/2008, um surto de Bcc foi suspeitado. 24 casos foram identificados. Os dados demográficos e clínicos foram avaliados. Mãos de profissionais da saúde e ambiente foram cultivadas. Espécies foram determinadas e tipadas. Reforço da higiene das mãos, cuidados com cateteres, terapia de infusão e manutenção da câmara de fluxo laminar foram realizadas. 16 profissionais de saúde (PS) diferentes manipularam os cateteres. Heparina multidoses e soro eram preparadas em um balcão comum a ambas as unidades. Resultados: 14 pacientes tiveram B. multivorans (um paciente teve também B. cenopacia), 6 Bcc não-multivorans e um teve um agente não pertencente a Bcc. Clone A de B. multivorans ocorreu em 12 pacientes (da Hematologia), em 10 o cateter havia sido utilizado nos dias 11 ou 12 de fevereiro. Culturas ambientais e de PS foram negativos. Todos os pacientes foram tratados com meropenem e selo de ceftazidima. Oito pacientes (30%) foram hospitalizados. Não ocorreram mortes. Após as medidas de controle, nenhum novo caso ocorreu. Conclusões: Este surto policlonal pode ser explicado por uma fonte comum contendo várias espécies de Bcc, talvez a câmara de fluxo laminar comum a ambas as unidades. Pode ter havido contaminação por B. multivorans (clone A) de frascos multi-dose.
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Adolescente , Adulto , Criança , Pré-Escolar , Feminino , Humanos , Masculino , Pessoa de Meia-Idade , Adulto Jovem , Bacteriemia/microbiologia , Infecções por Burkholderia/microbiologia , Complexo Burkholderia cepacia/isolamento & purificação , Infecções Relacionadas a Cateter/microbiologia , Surtos de Doenças , Transplante de Medula Óssea , Bacteriemia/epidemiologia , Infecções por Burkholderia/epidemiologia , Infecções Relacionadas a Cateter/epidemiologia , Doenças HematológicasRESUMO
This study describes a carbapenem-resistant Klebsiella pneumoniae (CRKP) outbreak that occurred from October 2008-December 2010. Polymerase chain reaction assays were performed to detect the blaKPC gene and molecular typing was performed using pulsed-field gel electrophoresis (PFGE). There were 33 CRKP infections; PFGE revealed five genotypes: genotype A in five (15%), B in 18 (55%), C in eight (24%) and two unique profiles. Genotype B was disseminated in all hospital units and belonged to the same clone identified in 11 different hospitals in the state of São Paulo. Sixteen (48%) patients died. Seven isolates (21%) were resistant to polymyxin B and 45% were resistant to tigecycline and amikacin.
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Adolescente , Adulto , Idoso , Idoso de 80 Anos ou mais , Criança , Pré-Escolar , Feminino , Humanos , Masculino , Pessoa de Meia-Idade , Adulto Jovem , Antibacterianos/farmacologia , Resistência beta-Lactâmica , Carbapenêmicos/farmacologia , Infecção Hospitalar/epidemiologia , Surtos de Doenças , Infecções por Klebsiella/epidemiologia , Klebsiella pneumoniae/efeitos dos fármacos , Infecção Hospitalar/microbiologia , DNA Bacteriano/genética , Eletroforese em Gel de Campo Pulsado , Genótipo , Infecções por Klebsiella/microbiologia , Klebsiella pneumoniae/genética , Testes de Sensibilidade Microbiana , Reação em Cadeia da Polimerase , Centros de Atenção Terciária , beta-Lactamases/metabolismoRESUMO
This report describes a survey of microbiology laboratories (n = 467) serving Brazilian hospitals with >10 intensive care beds and/or involved in the government health care adverse event reporting system. Coordinators were interviewed and laboratories classified as follows: Level 0 (no minimal functioning conditions-85.4% of laboratories); Level 1 (minimal functioning conditions but inadequate execution of basic routine-6.7%); Level 2 (minimal functioning conditions and adequate execution of basic routine but no adequate procedures for quality control-5.8%); Level 3 (minimal functioning conditions, adequate execution of basic routine, and adequate procedures for quality control, but no direct communication with the infection control department-0.9%); Level 4 (minimal functioning conditions, adequate execution of basic routine, adequate procedures for quality control, and direct communication with infection control, but no available advanced resources-none); and Level 5 (minimal functioning conditions, adequate execution of basic routine, adequate procedures for quality control, direct communication with infection control, and available advanced resources-0.9%). Twelve laboratories did not perform Ziehl-Neelsen staining; 271 did not have safety cabinets; and >30% without safety cabinets had automated systems. Low quality was associated with serving hospitals not participating in government adverse-event program; private hospitals; nonteaching hospitals; and those outside state capitals. Results may reflect what occurs in many other countries where defining priorities is important due to limited resources.
Este artículo describe una encuesta realizada en Brasil en laboratorios de microbiología (n = 467) que prestaban servicio a hospitales que contaban al menos con 10 camas de cuidados intensivos. Se entrevistó a los coordinadores y los laboratorios se clasificaron de la siguiente manera: nivel 0 (sin condiciones de funcionamiento mínimas: 85,4% de los laboratorios), nivel 1 (condiciones de funcionamiento mínimas pero ejecución inadecuada del trabajo habitual básico: 6,7%), nivel 2 (condiciones de funcionamiento mínimas y ejecución adecuada del trabajo habitual básico, pero sin procedimientos de control de calidad apropiados: 5,8%), nivel 3 (condiciones de funcionamiento mínimas, ejecución adecuada del trabajo habitual básico y procedimientos de control de calidad apropiados, pero sin comunicación directa con el departamento de control de infecciones: 0,9%), nivel 4 (condiciones de funcionamiento mínimas, ejecución adecuada del trabajo habitual básico, procedimientos de control de calidad apropiados y comunicación directa con el departamento de control de infecciones, pero sin recursos avanzados disponibles: ningún laboratorio) y nivel 5 (condiciones de funcionamiento mínimas, ejecución adecuada del trabajo habitual básico, procedimientos de control de calidad apropiados, comunicación directa con el departamento de control de infecciones y recursos avanzados disponibles: 0,9%). Doce laboratorios no realizaban la tinción de Ziehl-Neelsen, 271 no contaban con cámaras de seguridad biológica, y más de 30% de los laboratorios que carecían de cámaras de seguridad biológica tenían sistemas automatizados. La escasa calidad se asoció a la falta de participación en el programa gubernamental de notificación de acontecimientos adversos, a los hospitales privados, a los hospitales no docentes y a la ubicación de los hospitales fuera de las capitales de los estados. Los resultados pueden reflejar lo que ocurre en muchos otros países con recursos limitados, donde es importante definir las prioridades.
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Humanos , Hospitais , Laboratórios/normas , Técnicas Microbiológicas/normas , Alocação de Recursos/normas , Brasil , Coleta de Dados , Controle de Infecções , Controle de QualidadeRESUMO
OBJECTIVE: The aim of this study was to characterize Staphylococcus aureus (MRSA) carriage in a dermatology unit. METHODS: This was a prospective and descriptive study. Over the course of 26 weeks, surveillance cultures were collected weekly from the anterior nares and skin of all patients hospitalized in a 20-bed dermatology unit of a tertiary-care hospital. Samples from healthcare workers (HCWS) were cultured at the beginning and end of the study. Colonized patients were put under contact precautions, and basic infection control measures were enforced. Staphylococcus aureus colonization pressure was determined monthly. Colonized and non-colonized patients were compared, and isolates were evaluated for antimicrobial susceptibility, SCCmec type, virulence factors, and type. RESULTS: Of the 142 patients evaluated, 64 (45 percent) were colonized by MRSA (39 percent hospital acquired; 25 percent community acquired; 36 percent indeterminate). Despite isolation precautions, hospital-acquired Staphylococcus aureus occurred in addition to the continuous entry of Staphylococcus aureus from the community. Colonization pressure increased from 13 percent to 59 percent, and pemphigus and other bullous diseases were associated with MRSA colonization. Eleven out of 71 HCWs (15 percent) were Staphylococcus aureus carriers, although only one worker carried a persistent clone. Of the hospital-acquired MRSA cases, 14/28 (50 percent) were SCCmec type IV (3 PFGE types), 13 were SCCmec type III (46 percent), and one had an indeterminate type. These types were also present among the community-acquired Staphylococcus aureus isolates. SSCmec type IV isolates were shown to be more susceptible than type III isolates. There were two cases of bloodstream infection, and the pvl and tst virulence genes were absent from all isolates. CONCLUSIONS: Dermatology patients were colonized by community- and hospital-acquired Staphylococcus aureus. Half of the nosocomial Staphylococcus aureus isolates were SCCmec type IV. Despite the identification of colonized patients and the subsequent contact precautions and room placement, Staphylococcus aureus colonization continued to occur, and colonization pressure increased. Pemphigus and other bullous diseases were associated with Staphylococcus aureus.
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Adulto , Feminino , Humanos , Masculino , Portador Sadio/microbiologia , Infecção Hospitalar/microbiologia , Staphylococcus aureus Resistente à Meticilina/isolamento & purificação , Infecções Estafilocócicas/microbiologia , Antibacterianos/farmacologia , Infecções Comunitárias Adquiridas/microbiologia , Dermatologia , Eletroforese em Gel de Campo Pulsado , Testes de Sensibilidade Microbiana , Staphylococcus aureus Resistente à Meticilina/efeitos dos fármacos , Staphylococcus aureus Resistente à Meticilina/genética , Estudos ProspectivosRESUMO
The objective of this study was to describe a pseudo-outbreak of C. difficile in a hospital, following a change in the method used to detect the toxin. In February 2002, there were two cases of CDAD and in March 7 occurred, coinciding with a change of the test (from detection of toxin A to toxin A/B). An outbreak was suspected. Active surveillance and education of staff were started. A CDAD case was defined as a patient with acute onset of diarrhea (³ three episodes of liquid stools) and a positive stool test. They were classified as hospital or community-acquired. Stool samples were also collected for C. difficile culture and isolates were typed using AP-PCR. From March 2002 through December 2003 there were 138 cases of CDAD: 70 percent were hospital-acquired and among the 30 percent with CDAD present on admission, most (81 percent) came directly from the community (50 percent had no history of hospitalization). Fifty-two percent of hospital-acquired CDAD and 94 percent of cases on admission had already used antibiotics. The incidence of CDAD in hospitalized patients during surveillance was 3.3 per 1000 patient-admissions. The incidence of CDAD present on admission was 6.1/1000 patients. Sixteen isolates were typed and presented 13 different profiles. In conclusion, the CDAD increase in our study occurred due to change in diagnostic methods and not due to an outbreak, as suspected initially. The incidence in hospitalized patients was much lower than in reported outbreaks. There were 13 molecular types suggesting that an outbreak did not occur. CDAD was largely community-acquired.
O objetivo deste estudo foi descrever um pseudo-surto de C. difficile em um hospital após a troca do método de detecção de toxina. Em fevereiro de 2002 houve dois casos de DACD e em março ocorreram sete casos, que coincidiram com a mudança de teste (que detectava apenas toxina A e passou a detectar toxinas A e B). Foi suspeitado que houvesse um surto e vigilância ativa e reforço educacional para os profissionais de saúde foi implantado. Um caso de DACD foi definido como um paciente com início abrupto de diarréia (> 3 episódios de fezes líquidas) e um teste positivo. Os casos foram classificados como de aquisição comunitária ou hospitalar. Foram colhidas fezes para cultura para C. difficile e os isolados foram tipados por AP-PCR. De março de 2002 a dezembro de 2003 houve 138 casos de DACD: 70 por cento foram hospitalares e, entre os 30 por cento de casos comunitários, a maioria (81 por cento) foi de pacientes provenientes diretamente da comunidade (50 por cento não tinham histórico de internação). Cinquenta e dois por cento dos casos de DCAD hospitalar e 94 por cento de casos na admissão haviam utilizado antimicrobianos. A incidência de DCAD em pacientes internados foi de 3,3/100 pacientes e na admissão foi 6,1/1000 pacientes. Dezesseis isolados foram tipados e apresentaram 13 perfis diferentes. Em conclusão, o aumento de DACD no nosso estudo ocorreu por uma mudança de método diagnóstico e não devido a um surto como foi suspeitado inicialmente. A incidência em pacientes internados foi muito inferior ao que já foi relatado em surtos. Houve 13 perfis moleculares sugerindo que não ocorreu um surto. DACD foi, em grande parte, de aquisição comunitária.
Assuntos
Adolescente , Adulto , Idoso , Idoso de 80 Anos ou mais , Criança , Pré-Escolar , Feminino , Humanos , Lactente , Masculino , Pessoa de Meia-Idade , Adulto Jovem , Infecções por Clostridium/epidemiologia , Clostridioides difficile/isolamento & purificação , Infecção Hospitalar/epidemiologia , Surtos de Doenças , Diarreia/epidemiologia , Toxinas Bacterianas/análise , Brasil/epidemiologia , Infecções Comunitárias Adquiridas/epidemiologia , Infecções Comunitárias Adquiridas/microbiologia , Infecção Hospitalar/microbiologia , Diarreia/microbiologia , Fezes/microbiologia , Incidência , Reação em Cadeia da Polimerase , Adulto JovemRESUMO
OBJECTIVE: Describe implementation of a successful program to reduce doses (cefazolin 2 to 1 g) used for antimicrobial prophylaxis. METHODS: Evaluation of an intervention program to reduce prophylactic antimicrobial doses. The intervention included weekly staff discussions, automatic dispensation of 1g-vial of cefazolin by the pharmacy unless expressly requested by surgeon and increase in post-discharge surveillance as a strategy to reassure surgeons of the safety of the reduction. In the pre and post intervention periods, a prospective study of antimicrobial consumption and surgical site infections were measured. RESULTS: There were 5,164 and 5,204 deliveries in 2001-2002 and 2003-2004, respectively; 1,524 (29.5 percent) and 1,363 (26 percent) were cesarean sections. There was a 45 percent decrease in cefazolin vials used on average per cesarean section (2.29 to 1.25). Patients evaluated increased from 16 percent to 67 percent and the SSI rates in both periods were 3.34 percent to 2.42 percent, respectively. CONCLUSION: An ample intervention, including administrative and educational measures, led to high compliance with dose reduction and saved more than US$4,000 in cefazolin, considered important because government reimbursement in Brazil for cesarean section is $80.
OBJETIVO: descrever a implantação de um programa de redução de doses usadas para profilaxia antimicrobiana em cesárea. MÉTODOS: Descrição a implantação de um programa de redução de profilaxia com cefazolina de 2 g para 1 g através de discussões semanais com profissionais, dispensação automática de frascos de 1 g de cefazolina pela farmácia exceto quando feito pedido expresso pelo cirurgião. Houve um trabalho para aumentar a vigilância pós alta, com o objetivo de tranquilizar os cirurgiões quanto à segurança da nova dose. Foi realizada uma avaliação prospectiva, antes e depois da implantação do programa, do consumo de cefazolina e das taxas de infecção obtidas por vigilância durante a hospitalização e após a alta. RESULTADOS: Houve 5.164 e 5.204 partos em 2001-2 e 2003-4, respectivamente, sendo que 1.524 (29,5 por cento) e 1.363 (26 por cento) foram cesáreas. Houve uma queda de consumo de frascos de cefazolina de 45 por cento (2,29 para 1,25 por cesárea). O número de pacientes avaliados para infecção hospitalar aumentou de 16 por cento para 67 por cento, e as taxas de infecção foram 3,34 por cento e 2,42 por cento, respectivamente. CONCLUSÃO: Uma intervenção ampla, que incluiu medidas administrativas e educacionais, levou a uma alta adesão ao programa de redução de dose profilática em cesárea e permitiu uma economia acima de US$ 4.000 apenas considerando custos com cefazolina. Esta pode ser considerada importante especialmente porque o reembolso do SUS para parto cesárea é aproximadamente US$ 80.
Assuntos
Feminino , Humanos , Gravidez , Antibacterianos/administração & dosagem , Antibioticoprofilaxia/métodos , Cesárea , Cefazolina/administração & dosagem , Infecção da Ferida Cirúrgica/prevenção & controle , Antibacterianos/economia , Antibioticoprofilaxia/economia , Cefazolina/economia , Cesárea/economia , Avaliação de Programas e Projetos de Saúde , Estudos Prospectivos , Infecção da Ferida Cirúrgica/economiaRESUMO
Nosocomial pneumonia is a common complication in patients on mechanical ventilation and results in significant mortality. Diagnosis of pneumonia in patients who are intubated and under mechanical ventilation is difficult, even with the aid of clinical, laboratorial, and endoscopic tests. The objective of this study was to compare three methods of tracheal sputum collection in patients with a clinical and radiological diagnosis of pneumonia. Twenty-two patients with a clinical diagnosis of liver disease were enrolled, 18 years of age or older, 13 males and nine females, who had been mechanically ventilated over an intubation period of 5.86 ± 4.62 days. These patients were being treated in intensive care unit (ICU) of the Liver Transplantdepartment. Secretion collection was carried out according to a protocol with three distinct methods: endotracheal aspiration with a closed aspiration system, Bal cath and bronchoalveolar lavage. Of the 22 patients analyzed, 21 (95.4 percent) showed one or more infectious agent when the closed aspiration system was used. With the Bal cathâ collection, 19 patients (86.3 percent) had one or more infectious agents; in the collection by bronchoalveolar lavage, 10 patients (45.4 percent) presented one or more infectious agent. According to the laboratorial analysis, 14 different microorganisms were isolated, the most frequent of which were Staphylococcus aureus, Pseudomonas aeruginosa, and Klebsiella pneumoniae. We concluded that aspiration with the closed system produced the most effective results in comparison with those of bronchoalveolar lavage and the Bal cathâ, and may be an acceptable method for diagnosing hospital-acquired pneumonia when no fiberoptic technique is available.
Assuntos
Adulto , Idoso , Feminino , Humanos , Masculino , Pessoa de Meia-Idade , Infecção Hospitalar/microbiologia , Bactérias Gram-Negativas/isolamento & purificação , Bactérias Gram-Positivas/isolamento & purificação , Pneumonia Bacteriana/microbiologia , Escarro/microbiologia , Lavagem Broncoalveolar , Broncoscopia , Infecção Hospitalar/diagnóstico , Intubação Intratraqueal/efeitos adversos , Estudos Prospectivos , Pneumonia Bacteriana/diagnóstico , Respiração Artificial/efeitos adversos , Manejo de Espécimes/métodosRESUMO
O objetivo deste estudo foi verificar a efetividade do tecido de ligamento sarja 2 x 1, usado na confecção de campos duplos de algodão para a embalagem de artigos médico-hospitalares como barreira microbiana eficaz, enquanto novos e após múltiplas lavagens e autoclavações e correlacionar a quebra do poder de barreira microbiana com as alterações das características físicas do tecido. Foram utilizados métodos de testes padronizados tanto para a avaliação das características físicas para a determinação da gramatura, resistência a ruptura, resistência a tração e alongamento quanto para as microbiológicas. Os resultados microbiológicos demonstraram a efetividade da barreira microbiana da embalagem em estudo enquanto novos e, na determinação do número máximo de reprocessamentos, indicaram o número limite de 65. Quanto às alterações das características físicas do tecido reprocessado, a diminuição da gramatura foi o acontecimento que sustentou a quebra da barreira microbiana. O momento da alteração constatada nas medidas físicas de estouro, tração e alongamento no urdume e na trama dos tecidos reprocessados não coincidiu com o da quebra de barreira microbiana. A presente investigação sustenta a segurança do uso do tecido de algodão como embalagem de artigos médico hospitalares na esterilização por calor úmido. O número de reusos deverá ser controlado, não excedendo o de 65 vezes.
Assuntos
Reações Biológicas , Infecção Hospitalar , Técnicas In Vitro , Teste de Materiais , Embalagem de Produtos , Reutilização de Equipamento , MétodosRESUMO
Objective: To determine the rates of colonization and infection related to central venous catheter (CVC), the causative microorganisms, and the influence of various factors. Methods: From June to August 1993, all CVC in 4 Intensive Care Units were evaluated from their insertion to removal. Data were collected, by 3 nurses. Blood and catheter tips were cultured. Results: Of 84 catheters, 29.8 percent were colonized, 9.5 percent of patients showed evidence of local infection, and 4.8 percent had primary bloodstream infections. The internal jugular vein was the most commun site for catheter insertion (81 percent). Causes of removal were: end of need (48.3 percent), suspected infection (23.3 percent), malfunction (20 percent), routine change (8.3 percent). Among removals because of suspected infection 50 percent presented evidence of local infection, 43 percent were colonized (>15cfu), but there were no bloodstream infections. The average time of catheter use for those which became colonized was longer than for catheters that did not become colonized (p=0.008). The average time of catheter use associated with removal for infection (local and bloodstream) was longer than for removal for other reasons (p=0.042). Among colonized catheters, 16 percents developed bloodstream infection and 20 percent local infection. Immunosupressive drugs, cancer, diabets mellitus, HIV-infection, and neutropenia were not associated with infection or colonization. The most common microorganisms were gram-negative rods and S.aureus. Conclusions: The duration of venous catheter use increased the risk of colonization and infection. The observation suggests that physicians must strive for the shortest time of use of venous catheters, but it does not indicate a need for routine central venous catheter removal.