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INTRODUCTION: Antimicrobial resistance is a major public health challenge recognised by the WHO as an urgent global healthcare concern. Patients in Intensive Care Units (ICUs) are particularly prone to colonisation and/or infection by multidrug-resistant organisms (MDROs). OBJECTIVES: Delineate the epidemiological characteristics and risk factors for MDROs colonisation in mixed ICUs and Resuscitation Units by focusing on initial and nosocomial colonisation. MATERIAL AND METHODS: A descriptive observational study with analytical elements. It uses the Zero-Resistance register from the Preventive Medicine Service of the Albacete General University Hospital (Spain) from April 2016 to December 2021. It identifies the risk factors for MDROs colonisation. RESULTS: Of 7,541 cases, 61.0 % with initial colonisation had risk factors for MDROs versus 34.0 % not colonised upon hospitalisation (p < 0.001). Significant risk factors for initial colonisation included hospitalisation for ≥ 5 days within the last 3 months, prior MDROs colonisation/infection and institutionalization. No significant risk factor differences were found for nosocomial colonisation. An association between longer ICU stays and nosocomial colonisation (p < 0.001) was noted. CONCLUSIONS: Significant risk factors for initial MDROs colonisation were hospitalisation for ≥ 5 days in the last 3 months, prior MDROs colonisation/infection and institutionalisation. Longer ICU stays increased the nosocomial colonisation risk. IMPLICATIONS FOR CLINICAL PRACTICE: This study underscores the importance to early identify and manage patients at risk for MDROs colonisation in ICUs. By recognising factors (i.e. previous hospitalisations, existing colonisation or infection, impact of prolonged ICU stay), healthcare providers can implement targeted strategies to mitigate the spread of MDROs; e.g. enhanced surveillance, stringent infection control measures and judicious antibiotics use. Our findings highlight the need for a comprehensive approach to manage antimicrobial resistance in critical care settings to ultimately improve patient outcomes and reduce MDROs burden in hospitals.
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OBJECTIVE: Multi-resistant Enterobacteriaceae (MRE) are a public health threat, with screening and isolation strategies being important to stop its dissemination. Multiplex PCR is a novel method capable of rapid diagnosis with high sensitivity and specificity. In this study, our objective was to evaluate its application to multidrug-resistant Enterobacteriaceae management since its implementation in our hospital. METHODS: An observational retrospective descriptive study of multiplex PCR ALLPLEX TM ENTERO-DR results to screen inpatients colonized by MRE took place from November 2019 to May 2021. We calculated the percentage of positive, negative, non-identifiable or invalid results, identified microorganisms, reason for requesting it and subsequent actions. Median and I.R. from sampling time to partial and theoretical culture time, and since last colonization/infection depending on test results were calculated. RESULTS: Resistance mechanisms were detected in 31.47% of tests, being E. coli ESBL (68.99%) the most frequently isolated microorganism. Median time to partial result was 5.75 hours (I.R.: 2.67), having statistically significant differences with theoretical time. The most important reason to request the test was screening (80.12%) and the most frequent action taken was not to isolate (41.70 %). Whenever forty-nine months or more since last colonization/infection have passed, only 14.81% of the samples tested positive. CONCLUSIONS: Multiplex PCR is a useful test to manage colonized patients, capable of giving a rapid result and allowing for quicker decision-making, contributing to a good use of resources and patient comfort.
OBJECTIVE: Las enterobacterias multirresistentes (EBMR) suponen una amenaza para la Salud Pública, siendo el cribado y aislamiento de pacientes colonizados importante para evitar su diseminación. La PCR múltiple es una técnica novedosa, capaz de proporcionar un diagnóstico rápido con sensibilidad y especificidad altas. El objetivo de este trabajo fue evaluar la aplicación de PCR múltiple en el protocolo de aislamiento por EBMR desde su implantación en nuestro centro. METHODS: Se realizó un estudio observacional descriptivo y retrospectivo. Se analizaron los resultados del estudio de colonización por EBMR a pacientes hospitalizados, mediante PCR múltiple ALLPLEX TM ENTERO-DR, entre noviembre de 2019 y mayo de 2021. Se calcularon las frecuencias de resultado positivo, negativo, no interpretable o inválido, de microorganismos identificados, el motivo de petición y actuación posterior. Se calcularon la mediana y Rango Intercuartílico (R.I.) del tiempo desde el cribado hasta el resultado parcial y final. También se calcularon la mediana y R.I. desde el antecedente de colonización/infección según resultado de la prueba rápida. RESULTS: Se detectó mecanismo de resistencia en el 31,47% de las pruebas, siendo más frecuentemente aislado E. coli BLEE (68,99%). La mediana de tiempo hasta el resultado parcial fue de 5,75 horas (R.I.: 2,67), existiendo diferencias estadísticamente significativas con el tiempo de cultivo teórico. El motivo principal de petición fue cribado por antecedente (80,12%) y la actuación más frecuente fue no aislar (41,70%). El 14,81% de las pruebas fue positivo si el antecedente de infección/colonización era mayor a cuarenta y nueve meses. CONCLUSIONS: La PCR múltiple es una prueba útil para el control de la colonización por EBMR, que disminuye el tiempo hasta resultado y facilita la toma de decisiones rápidas, pudiendo contribuir a la adecuada gestión de recursos y comodidad de pacientes.
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Enterobacteriaceae , Escherichia coli , Humanos , Enterobacteriaceae/genética , Estudos Retrospectivos , beta-Lactamases , Espanha , Hospitais Universitários , Reação em Cadeia da Polimerase , AntibacterianosRESUMO
OBJECTIVE: Patients with Inflammatory Bowel Disease (IBD) are at increased risk of hepatitis B virus (HBV) infection as well as a lower response to vaccination. This study aimed to analyze the immune response after vaccination against HBV in patients diagnosed with IBD and its associated factors. METHODS: A retrospective observational study was conducted on patients with IBD treated at the vaccination clinic for at-risk patients at the Complejo Hospitalario Universitario de Albacete during the period 2011-2018. Immune response after vaccination and associated factors were determined using logistic regression models. RESULTS: 231 patients were included. HBV Vaccination had an optimal immune response in 82.7% of the patients. The likelihood of response to vaccination increased in those diagnosed with ulcerative colitis (OR 2.90; 95% CI 1.11-7.61) and decreased with age (80% lower in those aged 40-55 years (OR 0.20; 95% CI 0.05-0.83) and 88% lower in those over 55 years of age (OR 0.12; 95% CI 0.03-0.53) compared to those under 40 years of age) and pharmacological immunosuppression (OR 0.20; 95% CI 0.58-0.71). CONCLUSIONS: The decrease in the immunogenicity of the vaccine against hepatitis B in patients with IBD after the beginning of immunosuppressive treatment, as well as with age, make early vaccination a priority in this kind of patients.
OBJETIVO: Los pacientes con Enfermedad Inflamatoria Intestinal (EII) tienen más riesgo de infección por el virus de la hepatitis B (VHB) así como menor respuesta frente a la vacunación. El objetivo de este estudio fue analizar la respuesta inmunitaria tras la vacunación frente al VHB en los pacientes diagnosticados de EII y sus factores asociados. METODOS: Se realizó un estudio observacional retrospectivo sobre los pacientes con EII atendidos en la consulta de vacunas de pacientes de riesgo en el Complejo Hospitalario Universitario de Albacete durante el período 2011-2018. Se determinó la respuesta serológica tras la vacunación y los factores asociados mediante modelos de regresión logística. RESULTADOS: Se incluyeron 231 pacientes. La vacunación frente al VHB tuvo una respuesta inmunitaria óptima en un 82,7% de los pacientes. La probabilidad de respuesta a la vacunación aumentó en aquellos diagnosticados de colitis ulcerosa (OR 2,90; IC95% 1,11-7,61) y se redujo con la edad (80% menor en los de 40-55 años (OR 0,20; IC95% 0,05-0,83) y 88% menor en mayores de 55 años (OR 0,12; IC95% 0,03-0,53) frente a los menores de 40 años) y con la inmunosupresión farmacológica (OR 0,20; IC95% 0,58-0,71). CONCLUSIONES: La disminución de la inmunogenicidad de la vacuna frente a la hepatitis B en los pacientes con EII tras el inicio del tratamiento inmunosupresor, así como con la edad, hacen prioritaria la vacunación temprana en este tipo de pacientes.
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Hepatite B , Doenças Inflamatórias Intestinais , Adulto , Hepatite B/diagnóstico , Hepatite B/prevenção & controle , Anticorpos Anti-Hepatite B/uso terapêutico , Antígenos de Superfície da Hepatite B/uso terapêutico , Vacinas contra Hepatite B/uso terapêutico , Humanos , Imunidade , Doenças Inflamatórias Intestinais/complicações , Pessoa de Meia-Idade , Espanha , VacinaçãoRESUMO
BACKGROUND AND OBJECTIVE: Nosocomial pneumonia is the most common nosocomial infection in the intensive care units (ICUs) and contributes disproportionately to both poor outcomes and high cost of care in critically ill patients. In order to identify patients with greater risk of developing nosocomial pneumonia in ICUs, it is important to select the right preventive measures. PATIENTS AND METHOD: It was an observational study of 2 prospective cohorts of patients staying in the ICU for 24 h or more: the main cohort (n=1,184) and the validation cohort (n=554). A predictive model was constructed with the data of the main cohort using a logistic regression. Receiver operating characteristic (ROC) curves and predictive values for different cut points were obtained with the data of both cohorts. RESULTS: Eight variables were selected for the predictive model: parenteral nutrition, enteral nutrition, nasogastric intubation, tracheostomy, mechanical ventilation, previous surgery, coma and diabetes. In the main cohort, the model had a sensitivity of 81% and a specificity of 78.4% in predicting nosocomial pneumonia (Hosmer-Lemeshow statistic p=0.93; area under ROC curve=0.861; 95% confidence interval, 0.824-0.898). In the validation cohort, the area under ROC curve was 0.849 (95% confidence interval, 0.742-0.956). CONCLUSIONS: The resulting model presents satisfactory results in both cohorts. In addition, the variables used are simple, routinely available, and familiar to clinicians.