Risk factors for hospital mortality in intensive care unit survivors: a retrospective cohort study.

BACKGROUND: Deaths can occur after a patient has survived treatment for a serious illness in an intensive care unit (ICU). Mortality rates after leaving the ICU can be considered indicators of health care quality. This study aims to describe risk factors and mortality of surviving patients discharged from an ICU in a university hospital. METHODS: Retrospective cohort study carried out from January 2017 to December 2018. Data on age, sex, length of hospital stay, diagnosis on admission to the ICU, hospital discharge outcome, presence of infection, and Simplified Acute Physiology Score (SAPS) III prognostic score were collected. Infected patients were considered as those being treated for an infection on discharge from the ICU. Patients were divided into survivors and non-survivors on leaving the hospital. The association between the studied variables was performed using the logistic regression model. RESULTS: A total of 1,025 patients who survived hospitalization in the ICU were analyzed, of which 212 (20.7%) died after leaving the ICU. When separating the groups of survivors and non-survivors according to hospital outcome, the median age was higher among non-survivors. Longer hospital stays and higher SAPS III values were observed among non-survivors. In the logistic regression, the variables age, length of hospital stay, SAPS III, presence of infection, and readmission to the ICU were associated with hospital mortality. CONCLUSIONS: Infection on ICU discharge, ICU readmission, age, length of hospital stay, and SAPS III increased risk of death in ICU survivors.

Healthcare-associated infections on the intensive care unit in 21 Brazilian hospitals during the early months of the coronavirus disease 2019 (COVID-19) pandemic: An ecological study.

OBJECTIVE: The coronavirus disease 2019 (COVID-19) pandemic has caused a global health crisis and may have affected healthcare-associated infection (HAI) prevention strategies. We evaluated the impact of the COVID-19 pandemic on HAI incidence in Brazilian intensive care units (ICUs). METHODS: In this ecological study, we compared adult patients admitted to the ICU from April through June 2020 (pandemic period) with the same period in 2019 (prepandemic period) in 21 Brazilian hospitals. We used the Wilcoxon signed rank-sum test in a pairwise analysis to compare the following differences between the pandemic and the prepandemic periods: microbiologically confirmed central-line-associated bloodstream infection (CLABSI) and ventilator-associated pneumonia (VAP) incidence density (cases per 1,000 central line and ventilator days, respectively), the proportion of organisms that caused HAI, and antibiotic consumption (DDD). RESULTS: We detected a significant increase in median CLABSI incidence during the pandemic: 1.60 (IQR, 0.44-4.20) vs 2.81 (IQR, 1.35-6.89) (P = .002). We did not detect a significant difference in VAP incidence between the 2 periods. In addition, we detected a significant increase in the proportion of CLABSI caused by Enterococcus faecalis and Candida spp during the pandemic, although only the latter retained statistical significance after correction for multiple comparisons. We did not detect a significant change in ceftriaxone, piperacillin-tazobactam, meropenem, or vancomycin consumption between the studied periods. CONCLUSIONS: There was an increase in CLABSI incidence in Brazilian ICUs during the first months of COVID-19 pandemic. Additionally, we detected an increase in the proportion of CLABSI caused by E. faecalis and Candida spp during this period. CLABSI prevention strategies must be reinforced in ICUs during the COVID-19 pandemic.

IMPACTO-MR: um estudo brasileiro de plataforma nacional para avaliar infecções e multirresistência em unidades de terapia intensiva / IMPACTO-MR: a Brazilian nationwide platform study to assess infections and multidrug resistance in intensive care units

RESUMO Objetivo: Descrever o IMPACTO-MR, um estudo brasileiro de plataforma nacional em unidades de terapia intensiva focado no impacto das infecções por bactérias multirresistentes relacionadas à assistência à saúde. Métodos: Descrevemos a plataforma IMPACTO-MR, seu desenvolvimento, critérios para seleção das unidades de terapia intensiva, caracterização da coleta de dados, objetivos e projetos de pesquisa futuros a serem realizados na plataforma. Resultados: Os dados principais foram coletados por meio do Epimed Monitor System® e consistiram em dados demográficos, dados de comorbidades, estado funcional, escores clínicos, diagnóstico de internação e diagnósticos secundários, dados laboratoriais, clínicos e microbiológicos e suporte de órgãos durante a internação na unidade de terapia intensiva, entre outros. De outubro de 2019 a dezembro de 2020, 33.983 pacientes de 51 unidades de terapia intensiva foram incluídos no banco de dados principal. Conclusão: A plataforma IMPACTO-MR é um banco de dados clínico brasileiro de unidades de terapia intensiva focado na pesquisa do impacto das infecções por bactérias multirresistentes relacionadas à assistência à saúde. Essa plataforma fornece dados para o desenvolvimento e pesquisa de unidades de terapia intensiva individuais e ensaios clínicos observacionais e prospectivos multicêntricos.

ABSTRACT Objective: To describe the IMPACTO-MR, a Brazilian nationwide intensive care unit platform study focused on the impact of health care-associated infections due to multidrug-resistant bacteria. Methods: We described the IMPACTO-MR platform, its development, criteria for intensive care unit selection, characterization of core data collection, objectives, and future research projects to be held within the platform. Results: The core data were collected using the Epimed Monitor System® and consisted of demographic data, comorbidity data, functional status, clinical scores, admission diagnosis and secondary diagnoses, laboratory, clinical, and microbiological data, and organ support during intensive care unit stay, among others. From October 2019 to December 2020, 33,983 patients from 51 intensive care units were included in the core database. Conclusion: The IMPACTO-MR platform is a nationwide Brazilian intensive care unit clinical database focused on researching the impact of health care-associated infections due to multidrug-resistant bacteria. This platform provides data for individual intensive care unit development and research and multicenter observational and prospective trials.

Virulomic Analysis of Multidrug-Resistant Klebsiella pneumoniae Isolates and Experimental Virulence Model Using Danio rerio (Zebrafish).

This study evaluates a possible correlation between multidrug-resistant Klebsiella pneumoniae strains and virulence markers in a Danio rerio (zebrafish) model. Whole-genome sequencing (WGS) was performed on 46 strains from three Brazilian hospitals. All of the isolates were colistin-resistant and harbored blaKPC-2. Ten different sequence types (STs) were found; 63% belonged to CC258, 22% to ST340, and 11% to ST16. The virulence factors most frequently found were type 3 fimbriae, siderophores, capsule regulators, and RND efflux-pumps. Six strains were selected for a time-kill experiment in zebrafish embryos: infection by ST16 was associated with a significantly higher mortality rate when compared to non-ST16 strains (52% vs. 29%, p = 0.002). Among the STs, the distribution of virulence factors did not differ significantly except for ST23, which harbored a greater variety of factors than other STs but was not related to a higher mortality rate in zebrafish. Although several virulence factors are described in K. pneumoniae, our study found ST16 to be the only significant predictor of a virulent phenotype in an animal model. Further research is needed to fully understand the correlation between virulence and sequence types.

COVID-19 and isolation: Risks and implications in the scenario of new variants.

With the emergence of new variants of SARS-CoV-2, questions about transmissibility, vaccine efficacy, and impact on mortality are important to support decision-making in public health measures. Modifications related to transmissibility combined with the fact that much of the population has already been partially exposed to infection and/or vaccination, have stimulated recommendations to reduce the isolation period for COVID-19. However, these new guidelines have raised questions about their effectiveness in reducing contamination and minimizing impact in work environments. Therefore, a collaborative task force was developed to review the subject in a non-systematic manner, answering questions about SARS-CoV-2 variants, COVID-19 vaccines, isolation/quarantine periods, testing to end the isolation period, and the use of masks as mitigation procedures. Overall, COVID-19 vaccines are effective in preventing severe illness and death but are less effective in preventing infection in the case of the Omicron variant. Any strategy that is adopted to reduce the isolation period should take into consideration the epidemiological situation of the geographical region, individual clinical characteristics, and mask for source control. The use of tests for isolation withdrawal should be evaluated with caution, due to results depending on various conditions and may not be reliable.

Associação entre nível de priorização na admissão da Unidade de Terapia Intensiva e desfecho hospitalar / Association between prioritization level at intensive care unit admission and hospital outcome

Objetivo: avaliar a associação entre os níveis de priorização para admissão na Unidade de Terapia Intensiva (UTI) e o prognóstico dos pacientes. Material e Método: estudo longitudinal retrospectivo que incluiu adultos internados na UTI de hospital universitário, ano de 2020. As variáveis, coletadas nos prontuários e banco de dados eletrônicos do hospital contemplam: identificação, data de entrada no hospital e de admissão na UTI, diagnósticos, antecedentes, data de alta, desfecho, cálculo do Simplified Acute Physiology Score 3 (SAPS 3) e nível de priorização da admissão. Resultados: o estudo avaliou 274 pacientes. As patologias respiratórias totalizaram 41,25% das admissões, sendo COVID-19 o diagnóstico mais frequente (65 casos confirmados e 2 suspeitos). Dentre as comorbidades, destacam-se hipertensão arterial sistêmica (64,32%), diabetes mellitus (25,82%) e tabagismo (18,78%). O SAPS 3 médio foi de 59,29 pontos, representando uma probabilidade de óbito de 39,00%. A respeito dos níveis de priorizações, 174 (63,50%) pacientes foram classificados como prioridade 1 (P1); 94 (34,31%) pacientes como prioridade 2 (P2); e 6 (2,19%) pacientes como prioridade 3 (P3). Comparando os grupos P1 e P2, a probabilidade de óbito foi, respectivamente, 51,95% e 13,75%. E o número de óbitos observado foi de 90 (60,81%) no grupo P1 e 19 no grupo P2 (25,30%; p<0,001)). Conclusão: os pacientes classificados como P1 foram mais frequentes na amostra de estudo. A classificação de prioridades identificou os pacientes mais graves e com maior taxa de mortalidade na primeira categoria, apesar de não haver diferença na idade, comorbidade e fragilidade.

Objective: to assess the association between levels of prioritization for admission to intensive care unit (ICU) and patients' prognosis. Material and Method: longitudinal retrospective study that included adult patients admitted to the ICU of a University Hospital during 2020. The data were collected from paper and electronic medical records, including identification, date of admission to the hospital, date of admission to ICU, diagnosis, medical history, date of hospital discharge, outcome, the Simplified Acute Physiology Score 3 (SAPS-3) and prioritization level. Results: the study evaluated 274 patients during 2020. Respiratory diseases represented 41.25% of admissions, COVID-19 being the most frequent diagnosis (totaling 65 confirmed and 2 suspected cases). Among the comorbidities, the following were highlighted: arterial hypertension (64.32%), diabetes mellitus (25.82%), and smoking (18.78%). The mean SAPS 3 score was 59.29 points, representing a probability of death of 39.00%. About prioritization levels, 174 (63.50%) patients were categorized as Priority 1 (P1); 94 (34.31%) patients as Priority 2 (P2) and 6 (2.19%) patients as Priority 3 (P3), which was not considered due to insufficient sample for testing. Comparing groups P1 and P2, the probability of death of each category was, respectively, 51.95% and 13.75%. During the study period, the number of deaths in each category was 90 (60.81%) for P1 and 19 (25.30%; p<0,001) for P2. Conclusion: the prioritization classification identified patients with more severity and with greater mortality rates in category P1 of prioritization to ICU admission, even though there was no difference on age, comorbidity and frailty.

COVID-19 and isolation: Risks and implications in the scenario of new variants

Abstract With the emergence of new variants of SARS-CoV-2, questions about transmissibility, vaccine efficacy, and impact on mortality are important to support decision-making in public health measures. Modifications related to transmissibility combined with the fact that much of the population has already been partially exposed to infection and/or vaccination, have stimulated recommendations to reduce the isolation period for COVID-19. However, these new guidelines have raised questions about their effectiveness in reducing contamination and minimizing impact in work environments. Therefore, a collaborative task force was developed to review the subject in a non-systematic manner, answering questions about SARS-CoV-2 variants, COVID-19 vaccines, isolation/quarantine periods, testing to end the isolation period, and the use of masks as mitigation procedures. Overall, COVID-19 vaccines are effective in preventing severe illness and death but are less effective in preventing infection in the case of the Omicron variant. Any strategy that is adopted to reduce the isolation period should take into consideration the epidemiological situation of the geographical region, individual clinical characteristics, and mask for source control. The use of tests for isolation withdrawal should be evaluated with caution, due to results depending on various conditions and may not be reliable.

Clinical and epidemiological aspects of Candidemia in eight medical centers in the state of Parana, Brazil: Parana Candidemia Network

ABSTRACT Objectives: Candida spp. has been reported as one of the common agents of nosocomial bloodstream infections and is associated with a high mortality. Therefore, this study evaluated the clinical findings, local epidemiology, and microbiological aspects of candidemia in eight tertiary medical centers in the state of Parana, South of Brazil. Methods: In this study, we reported 100 episodes of candidemia in patients admitted to eight different hospitals in five cities of the state of Parana, Brazil, using data collected locally (2016 and 2017) and tabulated online. Results: The incidence was found to be 2.7 / 1000 patients / day and 1.2 / 1000 admissions. C. albicans was responsible for 49% of all candidemia episodes. Cancer and surgery were the two most common underlying conditions associated with candidemia. The mortality rate within 30 days was 48%, and removal of the central venous catheter (p = 0.029) as well as empirical or prophylactic exposure to antifungals were both related to improved survival (p = 0.033). Conclusions: This study highlights the high burden and mortality rates of candidemia in hospitals from Parana as well as the need to enhance antifungal stewardship program in the enrolled medical centers.

Clinical and epidemiological aspects of Candidemia in eight medical centers in the state of Parana, Brazil: Parana Candidemia Network.

OBJECTIVES: Candida spp. has been reported as one of the common agents of nosocomial bloodstream infections and is associated with a high mortality. Therefore, this study evaluated the clinical findings, local epidemiology, and microbiological aspects of candidemia in eight tertiary medical centers in the state of Parana, South of Brazil. METHODS: In this study, we reported 100 episodes of candidemia in patients admitted to eight different hospitals in five cities of the state of Parana, Brazil, using data collected locally (2016 and 2017) and tabulated online. RESULTS: The incidence was found to be 2.7 / 1000 patients / day and 1.2 / 1000 admissions. C. albicans was responsible for 49% of all candidemia episodes. Cancer and surgery were the two most common underlying conditions associated with candidemia. The mortality rate within 30 days was 48%, and removal of the central venous catheter (p = 0.029) as well as empirical or prophylactic exposure to antifungals were both related to improved survival (p = 0.033). CONCLUSIONS: This study highlights the high burden and mortality rates of candidemia in hospitals from Parana as well as the need to enhance antifungal stewardship program in the enrolled medical centers.

Analysis of oral risk factors for ventilator-associated pneumonia in critically ill patients.

OBJECTIVE: This a cross-sectional study to evaluate the association between oral health findings and ventilator-associated pneumonia (VAP) among critically ill patients in intensive care units (ICU). MATERIAL AND METHODS: Data were collected from medical records, and a detailed oral physical examination was performed on 663 critically ill patients on mechanical ventilation. Data were statistically analysed using univariate and logistic regression models relating the development of VAP with the oral findings. RESULTS: At oral physical examination, the most frequent findings were tooth loss (568-85.67%), coated tongue (422-63.65%) and oral bleeding (192-28.96%). Patients with a coated tongue or oral bleeding on the first day of ICU hospitalization developed more VAP than did patients without these conditions (20.14 vs 13.69%, p = 0.02; 23.44 vs 15.50%, p = 0.01, respectively). In the logistic regression, a coated tongue and oral bleeding were considered independent risk factors for VAP development (OR = 1.61 (1.03-2.51) and OR = 1.69 (1.08-2.66), respectively). CONCLUSIONS: The presence of a coated tongue and oral bleeding in ICU admission could be considered markers for the development of VAP. CLINICAL RELEVANCE: The results of this paper reinforce the importance of proper maintenance of oral hygiene before intubation, which may lead to a decrease in the incidence of VAP in the ICU.

Polymyxin for treatment of ventilator-associated pneumonia in a setting of high carbapenem resistance.

OBJECTIVES: To analyse the use of polymyxins for the treatment of ventilator-associated pneumonia (VAP) at a teaching hospital where carbapenem-resistant gram-negative bacteria are endemic. PATIENTS AND METHODS: This was a historical cohort study of patients receiving polymyxins to treat VAP in ICUs at a public university hospital in southern Brazil between January 1, 2017 and January 31, 2018. RESULTS: During the study period, 179 cases of VAP were treated with polymyxins. Of the 179 patients, 158 (88.3%) were classified as having chronic critical illness. Death occurred in 145 cases (81.0%). Multivariate analysis showed that the factors independently associated with mortality were the presence of comorbidities (P<0.001) and the SOFA score of the day of polymyxin prescription (P<0.001). Being a burn patient was a protective factor for mortality (P<0.001). Analysis of the 14-day survival probability showed that mortality was higher among the patients who had sepsis or septic shock at the time of polymyxin prescription (P = 0.028 and P<0.001, respectively). Acinetobacter baumannii was identified as the etiological agent of VAP in 121 cases (67.6%). In our cohort, polymyxin consumption and the incidence density of VAP were quite high. CONCLUSIONS: In our study, comprised primarily of chronically critically ill patients, there was a high prevalence of VAP caused by multidrug-resistant bacteria, consistent with healthcare-associated infections in low- and middle-income countries. Presence of comorbidities and the SOFA score at the time of polymyxin prescription were predictors of mortality in this cohort. Despite aggressive antimicrobial treatment, mortality was high, stressing the need for antibiotic stewardship.

Alternative drugs against multiresistant Gram-negative bacteria.

OBJECTIVES: Enterobacterales and other non-fermenting Gram-negative bacteria have become a threat worldwide owing to the frequency of multidrug resistance in these pathogens. On the other hand, efficacious therapeutic options are quickly diminishing. The aims of this study were to describe the susceptibility of 50 multiresistant Gram-negative bacteria, mostly pan-resistant, against old and less-used antimicrobial drugs and to investigate the presence of antimicrobial resistance genes. METHODS: A total of 50 genetically distinct isolates were included in this study, including 14 Acinetobacter baumannii (belonging to ST79, ST317, ST835 and ST836), 1 Pseudomonas aeruginosa (ST245), 8 Serratia marcescens and 27 Klebsiella pneumoniae (belonging to ST11, ST340, ST258, ST16, ST23, ST25, ST101, ST234, ST437 and ST442). The isolates were submitted to antimicrobial susceptibility testing and whole-genome sequencing to evaluate lineages and resistance genes. RESULTS: Our results showed that some strains harboured carbapenemase genes, e.g. blaKPC-2 (28/50; 56%) and blaOXA-23 (11/50; 22%), and other resistance genes encoding aminoglycoside-modifying enzymes (49/50; 98%). Susceptibility rates to tigecycline (96%) in all species (except P. aeruginosa), to minocycline (100%) and doxycycline (93%) in A. baumannii, to ceftazidime/avibactam in S. marcescens (100%) and K. pneumoniae (96%), and to fosfomycin in S. marcescens (88%) were high. Chloramphenicol and quinolones (6% susceptibility each) did not perform well, making their use in an empirical scenario unlikely. CONCLUSIONS: This study involving genetically distinct bacteria showed promising results for tigecycline for all Gram-negative bacteria (except P. aeruginosa), and there was good activity of minocycline against A. baumannii, ceftazidime/avibactam against Enterobacterales, and fosfomycin against S. marcescens.

Fatores de risco para mortalidade em idosos admitidos em unidade de terapia intensiva de hospital público / Risk factors for mortality in geriatric patients admitted to the intensive care unit at a public hospital

OBJETIVO: Avaliar fatores de risco para mortalidade em pacientes idosos com internação em uma unidade de terapia intensiva (UTI). MÉTODOS: Foram estudados pacientes idosos admitidos em UTI, em um estudo de coorte histórica. Foi realizada amostragem de conveniência de todos os pacientes com 60 anos ou mais, internados nos 20 leitos de uma UTI de um hospital de alta complexidade. Foi realizada análise de regressão de Cox para estimar os fatores de risco associados à mortalidade. O nível de significância utilizado foi de 5%. RESULTADOS: A proporção de pacientes idosos representou 45% das admissões em UTI no período. A mortalidade hospitalar foi de 38,4%. A variável pós-operatório de cirurgia de urgência e os escores Acute Physiology and Chronic Health Evaluation (APACHE II) e Sequential Organ Failure Assessment (SOFA) da admissão foram identificados como fatores de risco independentes para mortalidade hospitalar. CONCLUSÃO: Os fatores de risco associados à mortalidade foram os escores APACHE II e SOFA da admissão e pós-operatório de cirurgia de urgência.

OBJECTIVE: To evaluate risk factors for mortality in geriatric patients admitted to an intensive care unit (ICU). METHODS: We studied older patients admitted to the ICU in a historical cohort study. Convenience sampling was performed for all patients aged 60 years or older, admitted to the 20 beds of an ICU of a highly complex hospital. Cox regression analysis was performed to estimate risk factors associated with mortality. The significance level used was 5%. RESULTS: The proportion of geriatric patients represented 45% of ICU admissions in the period. In-hospital mortality was 38.4%. The postoperative emergency surgery variable and the Acute Physiology and Chronic Health Evaluation (APACHE II) and Sequential Organ Failure Assessment (SOFA) admission scores were identified as independent risk factors for in-hospital mortality. CONCLUSION: Risk factors associated with mortality were APACHE II and SOFA scores for admission and postoperative emergency surgery.

Aspectos clínicos e procedência de pacientes sépticos atendidos em um hospital universitário / Aspectos clínicos y procedencia de pacientes sépticos atendidos en un hospital universitario / Clinical aspects and the origin of sepsis patients treated at a university hospital

Resumo Objetivo: Caracterizar os aspectos clínicos, gravidade e mortalidade de pacientes com sepse atendidos em setor de urgência e emergência de um hospital terciário, relacionando-os aos serviços de saúde de origem, onde foi feito o atendimento inicial. Métodos: Trata-se de um estudo transversal, quantitativo, realizado com pacientes sépticos atendidos em setor de urgência e emergência de um hospital universitário terciário. Resultados: Dos 225 pacientes elegíveis, 115 (51,1%) foram admitidos com sepse, e destes, 63,5% foram encaminhados de outros serviços. Entre os pacientes procedentes de outros serviços o desenvolvimento do choque séptico e necessidade de ventilação mecânica foi significativamente mais frequente. Os pacientes admitidos no hospital do estudo por sepse tiveram maior aderência ao pacote de 3 horas da Surviving Sepsis Campaining-2016. Não houve diferença entre a mortalidade dos admitidos por sepse ou aqueles que desenvolveram sepse no hospital do estudo, entretanto, evoluíram a óbito 60,4% dos pacientes, destes, 63,2% procedentes de outros serviços. Conclusão: Mais da metade dos pacientes admitidos por sepse provém de outros serviços de saúde. Estes apresentaram maior grau de gravidade e requereram mais intervenções terapêuticas. Entretanto, não houve diferença nas taxas de mortalidade.

Resumen Objetivo: Caracterizar los aspectos clínicos, gravedad y mortalidad de pacientes con sepsis atendidos en sector de urgencia y emergencia de un hospital terciario, relacionándolos con los servicios de salud de origen, donde se realizó la atención inicial. Métodos: Se trata de un estudio transversal, cuantitativo, realizado con pacientes sépticos atendidos en sector de urgencia y emergencia de un hospital universitario terciario. Resultados: De los 225 pacientes elegibles, 115 (51,1%) fueron admitidos con sepsis, y de éstos, el 63,5% fueron encaminados de otros servicios. Entre los pacientes procedentes de otros servicios el desarrollo del shock séptico y la necesidad de ventilación mecánica fue significativamente más frecuente. Los pacientes admitidos en el hospital del estudio por sepsis tuvieron mayor adherencia al paquete de 3 horas de la Surviving Sepsis Campaining-2016. No hubo diferencia entre la mortalidad de los admitidos por sepsis o aquellos que desarrollaron sepsis en el hospital del estudio, sin embargo, evolucionaron a muerte el 60,4% de los pacientes, de éstos, el 63,2% procedentes de otros servicios. Conclusión: Más de la mitad de los pacientes admitidos por sepsis provienen de otros servicios de salud. Estos presentaron mayor grado de gravedad y requirieron más intervenciones terapéuticas. Sin embargo, no hubo diferencia en las tasas de mortalidad.

Abstract Objective: To characterize the clinical aspects, severity and mortality of sepsis patients treated in the urgency and emergency departments of a tertiary hospital, relating them to the health services of origin, where initial care was performed. Methods: Cross-sectional, quantitative study with sepsis patients, treated in the urgency and emergency departments of a tertiary university hospital. Results: Of the 225 eligible patients, 115 (51.1%) were hospitalized with sepsis; of these, 63.5% were referred from other services. Among patients from other services, the development of septic shock and the need for mechanical ventilation was significantly more frequent. Patients admitted to the sepsis study hospital had greater adherence to the 3-hour package of the Surviving Sepsis Campaining-2016. There was no difference between the mortality of those admitted for having sepsis and those who developed sepsis in the study hospital. However, 60.4% of the patients died, 63.2% of whom came from other services. Conclusion: More than half of the patients hospitalized with sepsis come from other health services. they presented a greater degree of severity and required more therapeutic interventions. However, there was no difference in mortality rates.

Acute kidney injury and intra-abdominal hypertension in burn patients in intensive care. / Injúria renal aguda e hipertensão intra-abdominal em paciente queimado em terapia intensiva.

OBJECTIVE: To evaluate the frequency of intra-abdominal hypertension in major burn patients and its association with the occurrence of acute kidney injury. METHODS: This was a prospective cohort study of a population of burn patients hospitalized in a specialized intensive care unit. A convenience sample was taken of adult patients hospitalized in the period from 1 August 2015 to 31 October 2016. Clinical and burn data were collected, and serial intra-abdominal pressure measurements taken. The significance level used was 5%. RESULTS: A total of 46 patients were analyzed. Of these, 38 patients developed intra-abdominal hypertension (82.6%). The median increase in intra-abdominal pressure was 15.0mmHg (interquartile range: 12.0 to 19.0). Thirty-two patients (69.9%) developed acute kidney injury. The median time to development of acute kidney injury was 3 days (interquartile range: 1 - 7). The individual analysis of risk factors for acute kidney injury indicated an association with intra-abdominal hypertension (p = 0.041), use of glycopeptides (p = 0.001), use of vasopressors (p = 0.001) and use of mechanical ventilation (p = 0.006). Acute kidney injury was demonstrated to have an association with increased 30-day mortality (log-rank, p = 0.009). CONCLUSION: Intra-abdominal hypertension occurred in most patients, predominantly in grades I and II. The identified risk factors for the occurrence of acute kidney injury were intra-abdominal hypertension and use of glycopeptides, vasopressors and mechanical ventilation. Acute kidney injury was associated with increased 30-day mortality.

Injúria renal aguda e hipertensão intra-abdominal em paciente queimado em terapia intensiva / Acute kidney injury and intra-abdominal hypertension in burn patients in intensive care

RESUMO Objetivo: Avaliar a frequência de hipertensão intra-abdominal no paciente grande queimado e sua associação com a ocorrência de injúria renal aguda. Métodos: Estudo de coorte prospectivo, com população de pacientes queimados internados nos leitos de unidade de terapia intensiva especializada. Realizada amostragem de conveniência de pacientes adultos internados no período de 1º de agosto de 2015 a 31 de outubro de 2016. Foram coletados dados clínicos e da queimadura, além de medidas seriadas da pressão intra-abdominal. O nível de significância utilizado foi de 5%. Resultados: Foram analisados 46 pacientes. Evoluíram com hipertensão intra-abdominal 38 pacientes (82,6%). A mediana da maior pressão intra-abdominal foi 15,0mmHg (intervalo interquartílico: 12,0 - 19,0). Desenvolveram injúria renal aguda 32 (69,9%) pacientes. A mediana do tempo para desenvolvimento de injúria renal aguda foi de 3 dias (intervalo interquartílico: 1 - 7). A análise individual de fatores de risco para injúria renal aguda apontou associação com hipertensão intra-abdominal (p = 0,041), uso de glicopeptídeos (p = 0,001), uso de vasopressor (p = 0,001) e uso de ventilação mecânica (p = 0,006). Foi evidenciada associação de injúria renal aguda com maior mortalidade em 30 dias (log-rank, p = 0,009). Conclusão: Ocorreu hipertensão intra-abdominal em grande parte dos pacientes estudados, predominantemente nos graus I e II. Os fatores de risco identificados para ocorrência de injúria renal aguda foram hipertensão intra-abdominal, uso de glicopeptídeos, vasopressor e ventilação mecânica. Injúria renal aguda esteve associada à maior mortalidade em 30 dias.

ABSTRACT Objective: To evaluate the frequency of intra-abdominal hypertension in major burn patients and its association with the occurrence of acute kidney injury. Methods: This was a prospective cohort study of a population of burn patients hospitalized in a specialized intensive care unit. A convenience sample was taken of adult patients hospitalized in the period from 1 August 2015 to 31 October 2016. Clinical and burn data were collected, and serial intra-abdominal pressure measurements taken. The significance level used was 5%. Results: A total of 46 patients were analyzed. Of these, 38 patients developed intra-abdominal hypertension (82.6%). The median increase in intra-abdominal pressure was 15.0mmHg (interquartile range: 12.0 to 19.0). Thirty-two patients (69.9%) developed acute kidney injury. The median time to development of acute kidney injury was 3 days (interquartile range: 1 - 7). The individual analysis of risk factors for acute kidney injury indicated an association with intra-abdominal hypertension (p = 0.041), use of glycopeptides (p = 0.001), use of vasopressors (p = 0.001) and use of mechanical ventilation (p = 0.006). Acute kidney injury was demonstrated to have an association with increased 30-day mortality (log-rank, p = 0.009). Conclusion: Intra-abdominal hypertension occurred in most patients, predominantly in grades I and II. The identified risk factors for the occurrence of acute kidney injury were intra-abdominal hypertension and use of glycopeptides, vasopressors and mechanical ventilation. Acute kidney injury was associated with increased 30-day mortality.

Impacto de ação educativa na manutenção do decúbito elevado como medida preventiva de pneumonia associada à ventilação mecânica em unidade de terapia intensiva / Impact of educational action in maintaining high decubitus as preventive measure of ventilator-associated pneumonia in the intensive care unit

INTRODUÇÃO: A pneumonia adquirida na Unidade de Terapia Intensiva (UTI) ocasiona o prolongamento da hospitalização e impacta na mortalidade. Intervenções educativas com profissionais de saúde são estratégias de prevenção relevantes nas infecções relacionadas à assistência à saúde. OBJETIVO: Avaliar o resultado de uma ação educativa na adesão à manutenção do decúbito elevado, acima de 30 graus, como medida para prevenção de pneumonia associada à ventilação mecânica. MÉTODOS: Estudo quase experimental do tipo antes e depois desenvolvido na UTI do Hospital Universitário de Londrina, no período de março e junho de 2010, dividido em três fases (pré-intervenção, intervenção e pós-intervenção). Durante o período de estudo, foram treinados 49 profissionais. Foram realizadas observações diretas da altura do decúbito antes e após o treinamento e coletados dados clínicos dos pacientes admitidos na UTI. A adesão à recomendação de manter o decúbito elevado foi definida como a manutenção de decúbito acima de 30 graus para cada observação. RESULTADOS: A média de angulação do decúbito apresentou aumento significativo do período pré-intervenção (27,85 ± 6,76 graus) para o primeiro mês pós-intervenção (30,70 ± 8,18 graus; p<0,001), no entanto esses valores não persistiram no terceiro mês de observação pós-intervenção (29,46 ± 6,19 graus). CONCLUSÃO: A ação educativa mostrou-se eficaz a curto prazo, na adesão à elevação do decúbito em ambiente hospitalar, porém essa adesão sofreu redução progressiva, demonstrando a necessidade de uma intervenção continuada para manutenção dos resultados.

INTRODUCTION: Intensive Care Unit (ICU) acquired pneumonia prolongs hospitalization and influences mortality rates. Educational interventions with health professionals are relevant preventive strategies for healthcare-associated infections. OBJECTIVE: To evaluate the result of an educational activity on adherence to the maintenance of a high decubitus, above 30 degrees, as a measure for preventing ventilator-associated pneumonia. METHODS: Quasi-experimental study with a pretestposttest design conducted in the ICU of the University Hospital of Londrina from March to June 2010, divided in three periods (preintervention, intervention and post-intervention). During study period, 49 health professionals were trained. Direct observations of the decubitus' height were performed before and after training and clinical data of patients admitted to the ICU were collected. Adherence to the recommendation of high decubitus was defined as maintenance of decubitus above 30 degrees in each observation. RESULTS: There was an increase in the mean of decubitus' angle from pre-intervention period (27.85±6.76 degrees) to post-intervention (30.70±8.18 degrees; p<0.001), although this difference did not persisted in the third month postintervention observation (29.46±6.19 degrees). CONCLUSION: The educational activity was transiently effective in increasing adherence to maintain high decubitus during hospitalization, but the adherence decreased progressively, showing the need for a continuous intervention to maintain results.

Clonality, outer-membrane proteins profile and efflux pump in KPC- producing Enterobacter sp. in Brazil.

BACKGROUND: Carbapenems resistance in Enterobacter spp. has increased in the last decade, few studies, however, described the mechanisms of resistance in this bacterium. This study evaluated clonality and mechanisms of carbapenems resistance in clinical isolates of Enterobacter spp. identified in three hospitals in Brazil (Hospital A, B and C) over 7-year. METHODS: Antibiotics sensitivity, pulsed-field gel electrophoresis (PFGE), PCR for carbapenemase and efflux pump genes were performed for all carbapenems-resistant isolates. Outer-membrane protein (OMP) was evaluated based on PFGE profile. RESULTS: A total of 130 isolates of Enterobacter spp were analyzed, 44/105 (41, 9%) E. aerogenes and 8/25 (32,0%) E. cloacae were resistant to carbapenems. All isolates were susceptible to fosfomycin, polymyxin B and tigecycline. KPC was present in 88.6% of E. aerogenes and in all E. cloacae resistant to carbapenems. The carbapenems-resistant E. aerogenes identified in hospital A belonged to six clones, however, a predominant clone was identified in this hospital over the study period. There is a predominant clone in Hospital B and Hospital C as well. The mechanisms of resistance to carbapenems differ among subtypes. Most of the isolates co-harbored blaKPC, blaTEM and /or blaCTX associated with decreased or lost of 35-36KDa and or 39 KDa OMP. The efflux pump AcrAB-TolC gene was only identified in carbapenems-resistant E. cloacae. CONCLUSIONS: There was a predominant clone in each hospital suggesting that cross-transmission of carbapenems-resistant Enterobacter spp. was frequent. The isolates presented multiple mechanisms of resistance to carbapenems including OMP alteration.

Esquema posológico atualmente utilizado para vancomicina falha em obter níveis terapêuticos em 40% dos pacientes internados em unidade de terapia intensiva / Currently used dosage regimens of vancomycin fail to achieve therapeutic levels in approximately 40% of intensive care unit patients

RESUMO Objetivo: Avaliar se a posologia atualmente utilizada de vancomicina para tratamento de infecções bacterianas graves causadas por microrganismos Gram-positivos em pacientes admitidos à unidade de terapia intensiva proporcionam níveis plasmáticos de vale de vancomicina em nível terapêutico, e examinar possíveis fatores associados com níveis de vale de vancomicina adequados nesses pacientes. Métodos: Estudo prospectivo descritivo com amostra de conveniência. Os pacientes que cumpriam os critérios de inclusão tiveram seus dados coletados a partir das anotações da enfermagem e dos registros médicos entre setembro de 2013 e julho de 2014. Incluíram-se 83 pacientes. Os níveis plasmáticos de vale iniciais de vancomicina foram obtidos imediatamente antes da quarta dose de vancomicina. Definiu-se lesão renal aguda como um aumento de, pelo menos, 0,3mg/dL na creatinina sérica dentro de 48 horas. Resultados: Considerando os níveis de vale plasmáticos de vancomicina recomendados para o tratamento de infecções graves por Gram-positivos (15 - 20µg/mL), os pacientes foram categorizados em grupos como níveis de vale de vancomicina baixos, adequados e elevados, respectivamente divididos em 35 (42,2%), 18 (21,7%), e 30 (36,1%) pacientes. Os pacientes com lesão renal aguda tiveram níveis plasmáticos de vale de vancomicina significantemente mais elevados (p = 0,0055, com significância para tendência, p = 0,0023). Conclusão: Preocupantemente, mais de 40% dos pacientes não obtiveram níveis plasmáticos de vale de vancomicina considerados eficazes. São necessários estudos de farmacocinética e de regimes posológicos de vancomicina em pacientes admitidos em unidades de terapia intensiva, para contornar esta elevada proporção de falhas na obtenção de níveis de vale iniciais adequados de vancomicina. Deve ser desencorajado o uso de vancomicina sem monitoramento dos níveis de vale plasmáticos.

ABSTRACT Objective: This study aimed to assess whether currently used dosages of vancomycin for treatment of serious gram-positive bacterial infections in intensive care unit patients provided initial therapeutic vancomycin trough levels and to examine possible factors associated with the presence of adequate initial vancomycin trough levels in these patients. Methods: A prospective descriptive study with convenience sampling was performed. Nursing note and medical record data were collected from September 2013 to July 2014 for patients who met inclusion criteria. Eighty-three patients were included. Initial vancomycin trough levels were obtained immediately before vancomycin fourth dose. Acute kidney injury was defined as an increase of at least 0.3mg/dL in serum creatinine within 48 hours. Results: Considering vancomycin trough levels recommended for serious gram-positive infection treatment (15 - 20µg/mL), patients were categorized as presenting with low, adequate, and high vancomycin trough levels (35 [42.2%], 18 [21.7%], and 30 [36.1%] patients, respectively). Acute kidney injury patients had significantly greater vancomycin trough levels (p = 0.0055, with significance for a trend, p = 0.0023). Conclusion: Surprisingly, more than 40% of the patients did not reach an effective initial vancomycin trough level. Studies on pharmacokinetic and dosage regimens of vancomycin in intensive care unit patients are necessary to circumvent this high proportion of failures to obtain adequate initial vancomycin trough levels. Vancomycin use without trough serum level monitoring in critically ill patients should be discouraged.