Infección nosocomial en Cuidados Intensivos del Hospital Universitario Clínico Quirúrgico Comandante Faustino Pérez Hernández, de Matanzas / Nosocomial infection in the Intensive Care Unit of the Teaching Clinic-Surgical Hospital Faustino Pérez Hernández, of Matanzas

RESUMEN Introducción: la diseminación de microorganismos multirresistentes en el hospital, constituye un importante problema epidemiológico y terapéutico que afecta especialmente a pacientes de la Unidad de Cuidados Intensivos. Objetivo: escribir el comportamiento de las infecciones nosocomiales y la resistencia antimicrobiana en la Unidad de Cuidados Intensivos. Materiales y métodos: se realizó un estudio de tipo descriptivo, observacional y prospectivo en la Unidad de Cuidados Intensivos del Hospital Universitario Clínico Quirúrgico Comandante Faustino Pérez Hernández, durante el primer semestre de 2020. El universo estuvo constituido por 102 pacientes que ingresaron en la Unidad de Cuidados Intensivos en el período estudiado, a los que se les realizó estudios microbiológicos. Las variables analizas fueron: causas de ingreso, edad, infecciones nosocomiales, neumonía en ventilados, gérmenes, resistencia antimicrobiana y mortalidad. Se expresaron en tablas y gráficos porcentuales. Resultados: el sexo masculino presentó mayor número de infección nosocomial respecto al femenino, en edades diferentes de la vida. La causa más frecuente de ingreso fue el politrauma. El sitio más común de infección nosocomial fue la vía respiratoria. Predominaron gérmenes como los bacilos gramnegativos fermentadores y las enterobacterias. Antibióticos como los inhibidores de las betalactamasas, otras penicilinas, quinolonas, cefalosporinas, aminoglucósidos y meropenen han adquirido un mayor porciento de resistencia. Conclusiones: la infección nosocomial por bacterias multirresistentes a los antibióticos estratégicos, es un problema dentro de la Unidad de Cuidados Intensivos asociado a la ventilación mecánica, que provoca una elevada mortalidad (AU).

ABSTRACT Introduction: the spread of multi-resistant microorganisms in the hospital is a major epidemiological and therapeutic problem that particularly affects critical patients admitted to the Intensive Care Unit. Objective: to describe the behavior of nosocomial infections and antimicrobial resistance in the Intensive Care Unit. Materials and Methods: a descriptive, observational and prospective study was carried out in the Intensive Care Unit of the Teaching Clinic-Surgical Hospital Faustino Pérez Hernández, during the first half of 2020. The universe was formed by 102 patients who entered the Intensive Care Unit during the studied period, to whom microbiological studies were carried out. The analyzed variables were the following: causes of admission, age, nosocomial infections, ventilator-associated pneumonia, germs, antimicrobial resistance and mortality. The results were expressed in tables and percentage charts. Results: Male sex showed the highest number of nosocomial infection compared to the female, at different ages of life. The most common cause of admission was polytrauma. The most common site of nosocomial infection was the airway. Germs like fermentative Gram-negative bacilli and enterobacteria predominated. Antibiotics such as beta-lactamase inhibitors, other kinds of penicillin, quinolones, cephalosporin, aminoglycosides and meropenen have acquired a higher percent of resistance. Conclusions: nosocomial infection caused by bacteria that have developed multi-resistance to strategic antibiotics is a problem within the Intensive Care Unit, associated to mechanical ventilation, and leads to high mortality (AU).

Factores pronósticos de mortalidad por agente infeccioso en un hospital de alta complejidad de Cartagena-Colombia / Prognostic factors for mortality caused by an infectious agent in a high complexity hospital in Cartagena-Colombia

Introducción: La identificación de los principales factores clínico-epidemiológicos que determinan causas de mortalidad en pacientes hospitalizados es una necesidad apremiante, principalmente cuando los esfuerzos realizados en la actualidad no permiten asumir acciones fundamentadas en la identificación de las causas de dicho evento. Objetivo: Establecer cuáles son los factores pronósticos de mortalidad por agente infeccioso en un hospital de alta complejidad de la ciudad de Cartagena- Colombia. Material y Métodos: Se realizó un estudio de casos y controles retrospectivo, con muestra proyectada de 86 casos y 258 controles, en una relación 1:3, que cumplieron con los criterios de elegibilidad respectivos y en los que realizaron análisis bivariados y posteriormente un análisis multivariado que incluyó métodos de regresión logística binaria. Resultados: El riesgo de mortalidad en el análisis multivariado está determinado por variables como sexo masculino (ORa 1,695 IC 95 por ciento: 1,005-2,856); Cáncer (ORa 2,389 IC 95 por ciento 1,230-4,642); inmunosupresión (ORa 3,211 IC 95 por ciento 1,004-10,26); Ventilación mecánica (ORa 2,541 IC 95 por ciento 1,128-5,722); Estancia en la UCI (ORa 2,331 IC 95 por ciento1,227-4,425) e Infección por bacterias productoras de carbapenemasas (ORa 4,778 IC95 por ciento 1,313-17,38). Conclusiones: En pacientes masculinos con cáncer o cualquier otra forma de inmunosupresión, en los que se requiera el uso del ventilador mecánico o estancia en la unidad de cuidado intensivo y que además desarrollen infecciones por bacterias productoras de carbapenemasas existe mayor riesgo de muerte por agente infeccioso(AU)

Introduction: The identification of the main epidemiological clinical factors that determine the causes of mortality in hospitalized patients is a pressing need, mainly when the efforts made at present do not allow us to take actions based on the identification of the causes of the aforementioned event. Objective: To identify the prognostic factors for mortality caused by infectious agents in a high complexity hospital in the city of Cartagena, Colombia. Material and Methods: A retrospective case-control study was conducted in 86 cases and 258 control samples that met the eligibility criteria, at the 1: 3 ratio. Bivariate analyses and a subsequent multivariate analysis that included binary logistic regression methods were also performed. Results: In the multivariate analysis, the risk of mortality is determined by variables such as male sex (ORa 1,695 95 percent CI: 1.005-2.856); cancer (ORa 2,389 95 percent CI 1,230-4,642); immunosuppression (ORa 3.211 95 percent CI 1.004-10.26); mechanical ventilation (ORa 2.541 95 percent CI 1.128-5.722); stay in the ICU (ORa 2,331 95 percent CI 1,227-4,425) and infection caused by carbapenemase-producing bacteria (ORa 4,778 95 percent CI 1,313-17.38). Conclusions: Male patients with cancer or any other form of immunosuppression who require the use of a mechanical ventilator or admission to the intensive care unit who also develop infections caused by carbapenemase-producing bacteria, are at greater risk of death from an infectious agent(AU)

Características e desfechos de pacientes com sepse adquirida na comunidade e no hospital / Characteristics and outcomes of patients with community-acquired and hospital-acquired sepsis

RESUMO Objetivo: Comparar as características clínicas e os desfechos de pacientes com sepse adquirida na comunidade ou no hospital. Métodos: Trata-se de estudo retrospectivo de coorte, que incluiu todos os pacientes com diagnóstico de sepse detectada entre janeiro de 2010 e dezembro de 2015 em um hospital privado localizado na Região Sul do Brasil. Os desfechos (mortalidade, tempo de permanência na unidade de terapia intensiva e no hospital) foram avaliados por meio da análise dos registros eletrônicos. Resultados: Foram hospitalizados, no total, 543 pacientes com diagnóstico de sepse, com frequência de 90,5 (85 a 105) casos por ano. Destes, 319 (58%) casos foram classificados como sepse adquirida no hospital. Este grupo apresentava doença mais grave e tinha um maior número de disfunções de órgãos, assim como teve um tempo maior de permanência no hospital [8 (8 - 10) versus 23 (20 - 27) dias; p < 0,001] e na unidade de terapia intensiva [5 (4 - 7) versus 8,5 (7 - 10); p < 0,001] do aqueles que apresentavam sepse adquirida na comunidade. Após ajustar quanto à idade, escore APACHE II e disfunção hemodinâmica e respiratória, a sepse adquirida no hospital persistiu associada com maior mortalidade (OR 1,96; IC95% 1,15 - 3,32, p = 0,013). Conclusão: Nossos resultados contribuem para a definição do perfil epidemiológico da sepse na amostra estudada, na qual a sepse adquirida no hospital foi mais grave e associada com mortalidade mais alta.

ABSTRACT Objective: To compare the clinical characteristics and outcomes of patients with community-acquired and hospital-acquired sepsis. Methods: This is a retrospective cohort study that included all patients with a diagnosis of sepsis detected between January 2010 and December 2015 at a private hospital in southern Brazil. Outcomes (mortality, intensive care unit and hospital lengths of stay) were measured by analyzing electronic records. Results: There were 543 hospitalized patients with a diagnosis of sepsis, with a frequency of 90.5 (85 to 105) cases/year. Of these, 319 (58%) cases were classified as hospital-acquired sepsis. This group exhibited more severe disease and had a larger number of organ dysfunctions, with higher hospital [8 (8 - 10) versus 23 (20 - 27) days; p < 0.001] and intensive care unit [5 (4 - 7) versus 8.5 (7 - 10); p < 0.001] lengths of stay and higher in-hospital mortality (30.7% versus 15.6%; p < 0.001) than those with community-acquired sepsis. After adjusting for age, APACHE II scores, and hemodynamic and respiratory dysfunction, hospital-acquired sepsis remained associated with increased mortality (OR 1.96; 95%CI 1.15 - 3.32, p = 0.013). Conclusion: The present results contribute to the definition of the epidemiological profile of sepsis in the sample studied, in which hospital-acquired sepsis was more severe and was associated with higher mortality.

Effects of the implementation of a hand hygiene education program among ICU professionals: an interrupted time-series analysis / Efeitos da implementação de um programa de educação de higienização das mãos entre profissionais de uma UTI: análise de séries temporais interrompidas

ABSTRACT Objective: To evaluate the effects that a hand hygiene education program has on the compliance of health professionals in an ICU. Methods: This was a quasi-experimental study with an interrupted time-series design, conducted over a 12-month period: the 5 months preceding the implementation of a hand hygiene education program (baseline period); the 2 months of the intensive (intervention) phase of the program; and the first 5 months thereafter (post-intervention phase). Hand hygiene compliance was monitored by one of the researchers, unbeknownst to the ICU team. The primary outcome measure was the variation in the rate of hand hygiene compliance. We also evaluated the duration of mechanical ventilation (MV), as well as the incidence of ventilator-associated pneumonia (VAP) at 28 days and 60 days, together with mortality at 28 days and 60 days. Results: On the basis of 959 observations, we found a significant increase in hand hygiene compliance rates-from 31.5% at baseline to 65.8% during the intervention phase and 83.8% during the post-intervention phase, corresponding to prevalence ratios of 2.09 and 2.66, respectively, in comparison with the baseline rate (p < 0.001). Despite that improvement, there were no significant changes in duration of MV, VAP incidence (at 28 or 60 days), or mortality (at 28 or 60 days). Conclusions: Our findings indicate that a hand hygiene education program can increase hand hygiene compliance among ICU professionals, although it appears to have no impact on VAP incidence, duration of MV, or mortality.

RESUMO Objetivo: Avaliar os efeitos da implementação de um programa de educação sobre higienização das mãos e a adesão a essa prática entre profissionais de uma UTI. Métodos: Estudo quase-experimental com séries temporais interrompidas conduzido ao longo de 12 meses: 5 meses antes do programa de educação (período basal), 2 meses durante a fase intensiva do programa (período de intervenção) e 5 meses durante a fase de manutenção do programa (período pós-intervenção). A avaliação da adesão às práticas de higienização das mãos foi feita por um dos pesquisadores sem conhecimento da equipe da UTI. O desfecho primário foi a variação da taxa de adesão à higienização das mãos. Também foram avaliadas a duração da ventilação mecânica (VM), a incidência de pneumonia associada à ventilação mecânica (PAVM) em 28 e 60 dias e mortalidade nos mesmos momentos. Resultados: Com base em 959 observações, houve um aumento nas taxas de adesão à higienização das mãos de 31,5% no período basal para 65,8% no período de intervenção e para 83,8% no período pós-intervenção, representando uma razão de prevalência 2,09 e 2,66 maior que o período basal, respectivamente (p < 0,001). Apesar desse aumento, não houve diferenças significativas em relação à duração da VM ou à incidência de PAVM e taxa de mortalidade em 28 e 60 dias. Conclusões: Neste estudo, o programa de educação em higienização das mãos aumentou a adesão a esse procedimento durante o período de monitorização, sem alterar as taxas de PAVM, a duração da VM e a mortalidade.

Lesión renal aguda adquirida en el hospital: factores de riesgo y desenlaces clínicos / Non-critical care hospital-acquired acute kidney injury: analysis of 101 cases

Background: Non-critical care Hospital-Acquired Acute Kidney Injury (Non-ICU HA-AKI) is a preventable common complication. Aim: To analyze its risk factors and outcomes in a general hospital ward. Material and Methods: A retrospective paired case-control 1:2 study was carried out from April to December 2014. Non-ICU HA-AKI was defined as those patients who experienced a 1.5-fold, or 0.3 mg/dl rise in serum creatinine after 24 hours of hospitalization. Controls were randomly selected, paired by date of hospital admission and specialty causing the admission. We analyzed short-term outcomes and risk factors. Results: We included 101cases aged 65 ± 16 years (55% women). Mean length of stay at the time of diagnosis of AKI was 7.9 ± 8.9 days. Hospital length of stay was longer in patients with AKI (p < 0.01), The risk for intensive care unit (ICU) admission and mortality were also higher (odds ratio [OR], 2.43 [95% confidence intervals (CI), 1.24 to 4.75)p < 0.01 and OR, 26.2 [95% CI, 8.8 to 104, P < 0.01). In a multivariate analysis, sepsis (OR, 3.64 [95% CI, 1.30 to 10.16] p = 0.013), dehydration (OR, 14.4 [95% CI, 4.49 to 46.19), baseline glomerular filtration (OR, 0.96 [95% CI, 0.94-0.98), contrast medium exposure (OR, 4.33 [95% CI, 1.60 to 11.66), recent exposure to Nonsteroidal Anti-inflammatory Drugs (OR 3.23 [95% CI, 1.22 to 8.52 (p = 0.02)] and Charlson comorbidity index (OR, 1.23 [95% CI, 1.05 to 1.43 (p < 0.01) were independent risk factors for Non-ICU HA-AKI. Conclusions: Non-ICU HA-AKI is associated with a longer hospital stay and higher risk of ICU admission and mortality. Most risk factors are potentially preventable.

Time of catheter removal in candidemia and mortality

ABSTRACT Background: The impact of central venous catheter (CVC) removal on the outcome of patients with candidemia is controversial, with studies reporting discrepant results depending on the time of CVC removal (early or any time during the course of candidemia). Objective: Evaluate the effect of time to CVC removal, early (within 48 h from the diagnosis of candidemia) vs. removal at any time during the course of candidemia, on the 30-day mortality. Methods: Retrospective cohort study of 285 patients with candidemia analyzing CVC removal within 48 h (first analysis) or at any time (second analysis). Results: A CVC was in place in 212 patients and was removed in 148 (69.8%), either early (88 patients, 41.5%) or late (60 patients, 28.3%). Overall, the median time to CVC removal was one day (range 1-28) but was six days (range 3-28) for those removed later. In the first analysis, APACHE II score (odds ratio [OR] 1.111, 95% confidence interval [95% CI] 1.066-1.158), removal at any time (OR 0.079, 95% CI 0.021-0.298) and Candida parapsilosis infection (OR 0.291, 95% CI 0.133-0.638) were predictors of 30-day mortality. Early removal was not significant. In the second analysis APACHE II score (OR 1.122, 95% CI 1.071-1.175) and C. parapsilosis infection (OR 0.247, 95% CI 0.103-0.590) retained significance. Conclusions: The impact of CVC removal is dependent on whether the optimal analysis strategy is deployed and should be taken into consideration in future analyses.

Mortality in patients with multidrug-resistant Pseudomonas aeruginosa infections: a meta-analysis

Abstract Pseudomonas aeruginosa is the leading cause of nosocomial infections with high mortality rates owing to the limited therapeutic options for multidrug-resistant Pseudomonas aeruginosa (MDRPA) and metallo-beta-lactamase (MBL)-producing strains. Herein, we present a meta-analysis exploring the association between MDRPA and São Paulo MBL-1 (SPM-1)-producing strains vs. mortality. Online databases were screened to identify studies published between 2006 and 2016. A total of 15 studies, comprising 3,201 cases of P. aeruginosa infection, were included. Our results demonstrated a higher mortality rate among patients infected with MDRPA (44.6%, 363/813) than those with non-MDRPA infection (24.8%, 593/2,388) [odds ratio (OR) 2.39, 95% confidence interval (CI) 1.70-3.36, p <0.00001]. The risk of mortality in patients with non-SPM-1 strains was four times higher than that observed in the patients of the SPM-1 group; however, no statistically significant difference was observed (p = 0.43). In conclusion, the results of our study demonstrated that patients infected with MDRPA had a significantly higher mortality rate than that of patients infected with non-MDRPA strains, especially patients with bloodstream infection (BSI), immunosuppression, and inadequate antimicrobial therapy. The absence of studies on the molecular aspects of blaSPM-1 and its association with mortality limited the analysis; therefore, our results should be interpreted with caution. Our findings also highlight the need for more studies on the molecular aspects of resistance and the peculiarities of different nosocomial settings.

Perfil epidemiológico das infecções hospitalares na unidade de terapia intensiva de um hospital terciário / Epidemiological profile of infections in the unit of therapy intensive care of a tertiary hospital

O estudo objetivou conhecer o perfil das infecções hospitalares na Unidade de Terapia Intensiva de um hospital, interior de São Paulo.Estudo retrospectivo, quantitativo, sendo os dados coletados através da CCIH. A taxa de pacientes com infecções hospitalares foi de 21,8%,o trato respiratório o sítio mais acometido (60,9%) e Acinetobacter spp e Staphylococcus aureus os patógenos mais encontrados. O óbito por infecções hospitalares foi mais frequente em mulheres (p=0,0322), idosos (p=0,0002) e em pacientes com maior dias de internação(p=0,0143). Os resultados apontam a necessidade de ações de prevenção e controle deste agravo.

This study aimed to know the profile of hospital infections (HI) in the Intensive Care Unit of a countryside hospital in São Paulo. It is a retrospective,quantitative study, with data collected through the CCIH. The rate of patients with HI was 21,8% and respiratory tract (60.9%) wasthe most affected site, and Acinetobacter spp and Staphylococcus aureus were the most found pathogens. The death for HI was found morefrequent in women (p=0.0322), in the elderly (p=0,0002) and patients with more days of admission (p=0.0143).The results show the needfor prevention and control of this disease.

El objetivo fue conocer el perfil de las infecciones hospitalarias (IH) en la unidad de terapia intensiva de un hospital en el interior de São Paulo.Estudio retrospectivo, cuantitativo y con datos recogidos a través de CCIH. La tasa de pacientes con IH fue 21,8%, el sitio más afectado eltracto respiratorio (60,9%), y Acinetobacter spp y Staphylococcus aureus los patógenos predominantes. La muerte por IH fue predominante en las mujeres (p=0,0322), ancianos (p=0,0002) y en pacientes con mayor número de días de hospitalización (p=0,0143). Son necesarias acciones de prevención y control de esto agravio.

Agentes bacterianos en la sepsis neonatal. cuidados intensivos neonatales, Hospital Mario Catarino Rivas / Bacterial agents in neonatal sepsis. Neonatal Intensive Care unit Mario Catarino Rivas National Hospital

Antecedentes: Las infecciones nosocomiales son aquellas que se adquieren y se mani estan luego de 48 horas de hospitalización Objetivo: Determinar los gérmenes aislados por cultivos de los recién nacidos diagnosticados como sepsis nosocomial en la unidad de cuidados intensivos neonatales (UCIN), Hospital Nacio- nal Mario Catarino Rivas (HNMCR), en los meses de julio a septiembre del 2015. Pacientes y métodos: Estudio transversal, de los 443 pacientes ingresados a UCIN, 221 neonatos que desarrollaron infección posterior a 48 horas de internamiento. La información se obtuvo del expediente clínico y se procesó en el software estadístico Epi Info 3.02 Resulta- dos: De los cultivos obtenidos; (165) 75% resultaron positivos para algún germen especí- co. Los gérmenes aislados fueron; Pseudomo- na spp 71 (43%) y Pseudomona aeruginosa 58 (35%), haciendo un total de 78% de sepsis nosocomial por Pseudomona. Conclusión: La sepsis intrahospitalaria es un problema frecuente en UCIN, por lo tanto es necesario el cumplimiento de las normas de vigilancia y control de este tipo de infecciones...(AU)

Infection with multidrug-resistant gram-negative bacteria in a pediatric oncology intensive care unit: risk factors and outcomes / Infecção por bactérias gram-negativas multirresistentes em uma unidade de terapia intensiva pediátrica oncológica: fatores de risco e resultados

ABSTRACT OBJECTIVE: This study aimed at evaluating the predictors and outcomes associated with multidrug-resistant gram-negative bacterial (MDR-GNB) infections in an oncology pediatric intensive care unit (PICU). METHODS: Data were collected relating to all episodes of GNB infection that occurred in a PICU between January of 2009 and December of 2012. GNB infections were divided into two groups for comparison: (1) infections attributed to MDR-GNB and (2) infections attributed to non-MDR-GNB. Variables of interest included age, gender, presence of solid tumor or hematologic disease, cancer status, central venous catheter use, previous Pseudomonas aeruginosa infection, healthcare-associated infection, neutropenia in the preceding 7 days, duration of neutropenia, length of hospital stay before ICU admission, length of ICU stay, and the use of any of the following in the previous 30 days: antimicrobial agents, corticosteroids, chemotherapy, or radiation therapy. Other variables included initial appropriate antimicrobial treatment, definitive inadequate antimicrobial treatment, duration of appropriate antibiotic use, time to initiate adequate antibiotic therapy, and the 7- and 30-day mortality. RESULTS: Multivariate logistic regression analyses showed significant relationships between MDR-GNB and hematologic diseases (odds ratio [OR] 5.262; 95% confidence interval [95% CI] 1.282-21.594; p = 0.021) and healthcare-associated infection (OR 18.360; 95% CI 1.778-189.560; p = 0.015). There were significant differences between MDR-GNB and non-MDR-GNB patients for the following variables: inadequate initial empirical antibiotic therapy, time to initiate adequate antibiotic treatment, and inappropriate antibiotic therapy. CONCLUSIONS: Hematologic malignancy and healthcare-associated infection were significantly associated with MDR-GNB infection in this sample of pediatric oncology patients.

RESUMO OBJETIVO: Este estudo visou a avaliar os preditores e resultados associados às infecções por bactérias gram-negativas multirresistentes (BGN-MR) em uma unidade de terapia intensiva pediátrica oncológica (UTIP). MÉTODOS: Foram coletados dados com relação a todos os episódios de infecção por BGN que ocorreram em uma UTIP entre janeiro de 2009 e dezembro de 2012. As infecções por BGN foram divididas em dois grupos para comparação: 1) infecções atribuídas a BGN-MR e 2) infecções atribuídas a BGN não multirresistente. As variáveis de interesse incluíram idade, sexo, presença de tumor sólido ou malignidade hematológica, câncer, uso de cateter venoso central, infecção anterior por Pseudomonas aeruginosa, infecção hospitalar, neutropenia nos sete dias anteriores, duração da neutropenia, tempo de internação antes da UTI, duração da internação na UTI e uso de quaisquer dos seguintes nos 30 dias anteriores: agentes antimicrobianos, corticosteroides, quimioterapia ou radioterapia. Outras variáveis incluíram: tratamento antimicrobiano inicial adequado, tratamento antimicrobiano definitivo inadequado, duração do uso de antibióticos adequados, tempo de início da terapia antibiótica adequada, mortalidade em sete dias e mortalidade em 30 dias. RESULTADOS: As análises de regressão logística multivariada mostraram relações significativas entre as BGN-MR e as doenças hematológicas (razão de chance (RC) 5,262; intervalo de confiança de 95% (IC de 95%) 1,282-21,594; p = 0,021) e infecções hospitalares (RC 18,360; IC de 95% 1,778-189,560; p = 0,015). Houve diferenças significativas entre os pacientes com BGN-MR e BGN não MR com relação às seguintes variáveis: recebimento de terapia antibiótica empírica inicial inadequada, tempo para início do tratamento antibiótico adequado e recebimento de terapia antibiótica inadequada. CONCLUSÕES: A malignidade hematológica e a infecção hospitalar foram significativamente associadas à infecção por BGN-MR nessa amostra de pacientes pediátricos oncológicos.

Prevalência de infecção hospitalar pela bactéria do gênero klebsiella em uma unidade de terapia intensiva / Prevalence of hospital infection with the bacteria klebsiella in an intensive care unit

Este estudo objetivou determinar a prevalência de infecção hospitalar pela bactéria Klebsiella pneumoniae na Unidade de Terapia Intensiva adulto de um hospital público de ensino, Hospital e Maternidade Therezinha de Jesus no período de 2012 a 2013. MÉTODOS: O estudo é descritivo transversal do tipo retrospectivo com análise de prontuários médicos e resultados das hemoculturas, uroculturas, lavado traqueal e swabs dos pacientes internados nesse setor incluindo exames realizados no período acima citado, com amostragem de 34 casos confirmados de infecção hospitalar (IH) por Klebsiella pneumoniae e processados pelo Software SPSS. RESULTADOS: A distribuição de frequência de pacientes em tratamento intensivo no período estudado compreendeu a população de 193 indivíduos, sendo que 17,09% desenvolveram infecção hospitalar pela bactéria acima citada. CONCLUSÃO: concordamos que os números obtidos neste estudo condizem com os demais hospitais de ensino, o que não significa que é um parâmetro que não pode ser mudado, pelo contrário, com esta análise pretendemos implantar medidas eficazes de controle de contaminação assim como ações educativas para os demais profissionais da saúde (acadêmicos e residentes principalmente) no nosso hospital, minimizando os desfechos ruins.

This study aimed to determine the prevalence of nosocomial infection by the bacterium Klebsiella pneumoniae in adult intensive care unit of a public teaching hospital, Hospital and Maternity Therezinha of Jesus in the period 2012-2013. METHODS: The study is a retrospective cross-sectional with analysis of medical records and results of blood cultures, urine, tracheal aspirates and swabs of hospitalized patients in this sector including examinations performed above mentioned period, with sampling of 34 confirmed cases of Klebsiella pneumoniae IH and processed by SPSS software. RESULTS: The frequency distribution of patients in intensive care during the study period comprised the population of 193 individuals, and 17.09% developed nosocomial infection by the bacteria mentioned above. CONCLUSION: We agree that the figures obtained in this study are consistent with other teaching hospitals, which means that it is not a parameter that can not be changed, however, with this analysis we intend to implement effective measures to control contamination as well as educational activities for other health professionals (mainly academics and residents) in our hospital, minimizing poor outcomes.

Impacto de la infección nosocomial en un hospital de Bogotá (Colombia): efectos en mortalidad y costos / Nosocomial infections impact in a hospital in Bogota (Colombia): effects on mortality and hospital costs

Background: Nosocomial infections (NI) are events associated with high impact on hospital costs and mortality. Aim: To evaluate from the health provider's perspective the costs and mortality attributable to NI. Methods: We selected a sample of patients with and without NI matched by age and diagnosis at admission. Costs were calculated and converted from Colombian pesos to US dollars using the average exchange rate of 2008. We evaluated the mortality rate in both groups. Results: We collected data on 187 patients with NI and 276 without NI. Median total hospitalization cost was US$ 6,329 (95% CI US$5,527-7,934) in NI patients, while in non-infected patients this median was US$1,207 (95% CI US$ 974-1,495). Mortality was higher in the NI group (31.6% versus 5.1%). Patients with NI had longer hospital stays (median 21 days, 95% CI 18-24 days) than non-infected patients (median 5 days, 95% CI 5-6 days). Mortality was also markedly higher in the NI group than in the non-infected group (31.6% versus 5.1%). Conclusion: NI are adverse and costly events related to patient attention that affect adversely the quality of attention.

Introducción: Las infecciones asociadas a la atención en salud (IAAS) están relacionadas con un incremento en los costos de hospitalización y un mayor riesgo de mortalidad. Objetivo: Establecer los costos y la mortalidad asociados a la presentación IAAS en una institución de cuarto nivel. Métodos: Se hizo una selección pareada de pacientes con IAAS y sin IAAS para calcular el costo por medio de costeo directo y emparejamiento. Los costos fueron calculados en pesos colombianos y convertidos a dólares estadounidenses según la tasa de cambio de 2008. Resultados: Se incluyeron 187 pacientes con IAAS y 276 pacientes sin IAAS. La tasa de IAAS fue de 1,8% La mediana del costo de hospitalización en los pacientes con IAAS fue US$ 6.329 (95% CI US$ 5.527-7.934) y en los no infectados de US$1,207 (95% CI US$ 974-1.495). Los pacientes con IAAS presentaron mayor tiempo de estancia hospitalaria, con una diferencia de 16 días respecto a los no infectados (21 días (IC 95% 18-24) vs 5 días (IC 95% 5-6)). Se encontró una mortalidad atribuible de 26,4%. Conclusiones: Las IAAS son eventos adversos a la atención, que se asocian con mayor mortalidad y generación de costos extra.

Risk Factors for Mortality in Patients with Serratia marcescens Bacteremia

PURPOSE: Over the last 30 years, Serratia marcescens (S. marcescens) has emerged as an important pathogen, and a common cause of nosocomial infections. The aim of this study was to identify risk factors associated with mortality in patients with S. marcescens bacteremia. MATERIALS AND METHODS: We performed a retrospective cohort study of 98 patients who had one or more blood cultures positive for S. marcescens between January 2006 and December 2012 in a tertiary care hospital in Seoul, South Korea. Multiple risk factors were compared with association with 28-day all-cause mortality. RESULTS: The 28-day mortality was 22.4% (22/98 episodes). In a univariate analysis, the onset of bacteremia during the intensive care unit stay (p=0.020), serum albumin level (p=0.011), serum C-reactive protein level (p=0.041), presence of indwelling urinary catheter (p=0.023), and Sequential Oran Failure Assessment (SOFA) score at the onset of bacteremia (p<0.001) were significantly different between patients in the fatal and non-fatal groups. In a multivariate analysis, lower serum albumin level and an elevated SOFA score were independently associated with 28-day mortality [adjusted odds ratio (OR) 0.206, 95% confidential interval (CI) 0.044-0.960, p=0.040, and adjusted OR 1.474, 95% CI 1.200-1.810, p<0.001, respectively]. CONCLUSION: Lower serum albumin level and an elevated SOFA score were significantly associated with adverse outcomes in patients with S. marcescens bacteremia.

Impacto del cobre en la reducción de infecciones intrahospitalarias, mortalidad y gasto en antimicrobianos en una Unidad de Cuidados Intensivo de adultos / Impact of copper in the reduction of hospital-acquired infections, mortality and antimicrobial costs in the Adult Intensive Care Unit

We conducted a clinical trial to determine the impact of coating surfaces with copper in reducing hospital-acquired infections, mortality associated with nosocomial infections and antimicrobial costs in the UCI. The study took place at Carlos Van Buren Hospital, Valparaíso, Chile. No differences in the frequency of nosocomial infections were found. Not in rates of ventilator-associated pneumonia (p = 0.9), nor in catheter- associated urinary tract infection (p = 0.9) or in central venous catheter associated bacteremia (p = 0.3). There were no differences in infection-free survival (p = 0.9). There were less costs of antimicrobials in patients in which copper was used. The fact that the sample size was not completed could explain that no significant differences in infections were found. Conclusion: The use of copper as a surface in the ICU showed no statistically significant differences in rates of nosocomial infections during the study period, however, these results could be related to the sample size.

Introducción: Las infecciones nosocomiales incrementan la mortalidad y costos en las instituciones de salud. El revestimiento con cobre, de superficies de alto contacto en la unidad clínica en torno a los pacientes, reduce la colonización bacteriana de las mismas. Objetivo: Determinar el impacto del revestimiento de las superficies con cobre en la disminución de las infecciones intrahospitalarias, la mortalidad asociada a las infecciones intrahospitalarias y los costos en antimicrobianos en pacientes hospitalizados en UCI adultos en el Hospital Carlos Van Buren. Pacientes y Métodos: Estudio prospectivo, comparativo, mayo de 2011-mayo de 2012. Asignación aleatoria de pacientes adultos ingresados en UCI, que permanecieran al menos por 24 h en dicha unidad, a unidades de aislamiento recubiertas (n: 7) o no recubiertas con cobre (n: 7). Resultados: Ingresaron al estudio 440 pacientes, 217 pacientes (49,3%) en el grupo sin cobre y 223 en el grupo con cobre (50,7%). No se encontraron diferencias en la frecuencia de infecciones intrahospitalarias en ambos grupos. Tampoco se encontraron diferencias significativas en las tasas de neumonía asociada a ventilación mecánica (p = 0,9), infección urinaria asociada a catéter urinario (p = 0,9) y bacteremias asociada a catéter venoso central (p = 0,3). Tampoco se encontraron diferencias en la sobrevida libre de infección (p = 0,9). Se encontró un gasto menor de antimicrobianos en pacientes atendidos en unidades revestidas con cobre. Durante el período del estudio no se completó el tamaño de muestra y las diferencias no significativas podrían deberse a este hecho. Conclusión: El uso del cobre como revestimiento de las superficies hospitalarias en UCI, mostró diferencia en la tasa de bacteriemia asociada a dispositivos venosos, aunque no significativa, y no mostró diferencia en neumonías e infecciones urinarias. Las diferencias no significativas pueden deberse a que no se completó el tamaño de la muestra. Se observó un mayor gasto de antimicrobianos en pacientes de unidades no cobrizadas, lo que plantea una nueva área de investigación.

Impact of hospital infections on patients outcomes undergoing cardiac surgery at Santa Casa de Misericórdia de Marília / Impacto das infecções hospitalares na evolução de pacientes submetidos à cirurgia cardíaca na Santa Casa de Misericórdia de Marília

Objective: this study aimed to determine the incidence of nosocomial infections, the risk factors and the impact of these infections on mortality among patients undergoing to cardiac surgery. Methods: Retrospective cohort study of 2060 consecutive patients from 2006 to 2012 at the Santa Casa de Misericórdia de Marília. Results: 351 nosocomial infections were diagnosed (17%), 227 non-surgical infections and 124 surgical wound infections. Major infections were mediastinitis (2.0%), urinary tract infection (2.8%), pneumonia (2.3%), and bloodstream infection (1.7%). The in-hospital mortality was 6.4%. Independent variables associated with non-surgical infections were age > 60 years (OR 1.59, 95% CI 1.09 to 2.31), ICU stay > 2 days (OR 5, 49, 95% CI 2.98 to 10, 09), mechanical ventilation > 2 days (OR11, 93, 95% CI 6.1 to 23.08), use of urinary catheter > 3 days (OR 4.85 95% CI 2.95 -7.99). Non-surgical nosocomial infections were more frequent in patients with surgical wound infection (32.3% versus 7.2%, OR 6.1, 95% CI 4.03 to 9.24). Independent variables associated with mortality were age greater than 60 years (OR 2.0; 95% CI 1.4 to3.0), use of vasoactive drugs (OR 3.4, 95% CI 1.9 to 6, 0), insulin use (OR 1.8; 95% CI 1.2 to 2.8), surgical reintervention (OR 4.4; 95% CI 2.1 to 9.0) pneumonia (OR 4.3; 95% CI 2.1 to 8.9) and bloodstream infection (OR = 4.7, 95% CI 2.0 to 11.2). Conclusion: Non-surgical hospital infections are common in patients undergoing cardiac surgery; they increase the chance of surgical wound infection and mortality. .

Objetivo: O objetivo deste estudo foi determinar as taxas das infecções hospitalares, os fatores de risco associados e o impacto destas infecções na mortalidade dos pacientes submetidos à cirurgia cardíaca. Métodos: coorte retrospectivo que incluiu 2060 pacientes consecutivos, no período de 2006 a 2012 na Santa Casa de Misericórdia de Marília. Resultados: Foram diagnosticadas 351 infecções hospitalares (17%), sendo 227 infecções não cirúrgicas e 124 infecções cirúrgicas. As principais infecções foram: mediastinite (2,0%), infecção urinária (2,8%), pneumonia (2,3%), infecção da corrente sanguínea (1,7%). A mortalidade global intra-hospitalar foi de 6,4%. As variáveis independentes associadas às infecções não cirúrgicas foram: idade > 60 anos (OR 1,59; IC95%1,09-2,31), internação em UTI > 2 dias (OR5,49; IC95% 2,98-10,09), ventilação mecânica > 2 dias (OR11,93; IC95% 6,1 - 23,08), uso de sonda vesical >3 dias (OR 4,85 IC95% 2,95 -7,99). Infecções hospitalares não cirúrgicas foram mais frequentes em pacientes com infecção cirúrgica (32,3% versus 7,2%; OR 6,1; IC95% 4,03- 9,24). As variáveis independentes associadas a mortalidade foram: idade >60 anos (OR= 2,0 ; IC 95% 1,4-3,0), uso de droga vasopressora (OR 3,4; IC95% 1,9-6,0), uso de insulina (OR=1,8; IC 95% 1,2-2,8), reintervenção cirúrgica (OR=4,4 IC95% 2,1-9,0) pneumonia (OR=4,3 IC95% 2,1-8,9) e infecção da corrente sanguíneas (OR=4,7; IC95% 2,0-11,2). Conclusão: infecções hospitalares não cirúrgicas são frequentes pós cirurgia cardíaca, e aumentam a chance de infecção cirúrgica e a mortalidade. .

Factores de riesgo asociados a mortalidad en infecciones relacionadas con la atención en salud en un hospital universitario de tercer nivel en Colombia / Mortality risk factors associated with healthcare infections in a tertiary level university hospital in Colombia

Introducción. Las infecciones hospitalarias son una amenaza para la salud pública. A pesar de los esfuerzos para contenerlas, su incidencia sigue siendo grande y genera altos costos en la atención en salud. Objetivo. Determinar los factores asociados a mortalidad en pacientes con diagnóstico de infecciones hospitalarias en nuestra institución. Materiales y métodos. Se llevó a cabo un estudio prospectivo de cohortes entre enero y diciembre del 2011 por medio de la observación de 1.015 pacientes con diagnóstico de infección de acuerdo a los criterios del sistema de vigilancia hospitalaria sugeridos por los Centers for Disease Control and Prevention (CDC). Se excluyó a quienes no tenían cultivo microbiológico de la infección o habían tenido reingresos hospitalarios en menos de un año. Se evaluaron variables sociodemográficas y clínicas, perfiles de resistencia microbiológica y uso de antibióticos. La variable de desenlace fue la muerte. Se realizó un análisis de supervivencia para cada variable, estableciendo significación estadística con la prueba de log-rank , así como un análisis multivariado mediante regresión de Cox. Se consideraron significativos los valores de p menores de 0,05. Resultados. El promedio de edad fue de 43 años (57 % hombres y 43 % mujeres); 53 % de los pacientes tuvo diagnóstico clínico y 47 %, quirúrgico; 54 % de las infecciones se presentó en la herida quirúrgica y 62 % de ellas se asociaron a microorganismos Gram negativos. La mortalidad durante el seguimiento fue de 24,4 %. En el análisis multivariado se encontró asociación con mortalidad para las variables de estancia en cuidado intensivo ( hazard ratio (HR)=1,51; IC 95% 1,13-2,01), uso inapropiado de antibióticos (HR=3,05; IC 95% 2,34-3,98) y uso de antibiótico genérico o copia (HR=1,91; IC IC 95% 1,43-2,55). Conclusiones. El empleo de moléculas genéricas y el uso inadecuado de antibióticos en pacientes con infecciones hospitalarias son factores que pueden modificarse para disminuir la mortalidad.

Introduction: Nosocomial infections are a public health threat. Despite multiple efforts, its incidence is still significant and it generates high costs in health care. Objective: To determine risk factors associated with mortality in patients with healthcare infections in a tertiary level hospital in Colombia. Materials and methods: A prospective cohort observational study was performed between January and December 2011. One thousand one hundred and fifteen patients with health care infections using the CDC definition criteria were included. Exclusion criteria were those patients with no microbiologic isolate associated with the infection or hospital readmissions in the last year. Socio-demographic and clinical variables, bacterial resistance profiles and antibiotic use were evaluated. Death was the primary outcome. Survival analysis for each variable was performed using statistical significance defined by the log-rank test. Multivariate and Cox regression analyses were done. Values of p less than 0.05 were considered statistically significant. Results: Mean age was 43 years old (57% men and 47% women); 53% of patients had a medical condition and 47% surgical diagnosis; 54% of health care infections were surgical site infections and 62% were associated to Gram-negative bacilli. The mortality rate during follow-up was 24.4%. On multivariate analysis we found an association with intensive care stay (HR=1.51; 95% CI: 1.13-2.01), inappropriate use of antibiotics (HR=3.05; 95% CI: 2.34-3.98) and use of generic antibiotics or copies (HR=1.91; 95%CI: 1.43-2.55). Conclusions: The use of generic molecules of antibiotics and inappropriate antibiotic treatments in patients with health care infections are modifiable factors to decrease mortality.

Factores asociados a mortalidad por neumonía nosocomial en un hospital público de Perú: 2006- 2010 / Factors associated with nosocomial pneumonia mortality in a public hospital in Peru: 2006-2010

Objetivos: determinar los factores asociados a mortalidad en pacientes con neumonía nosocomial en el Hospital Dos de Mayo, Lima - Perú entre el período enero 2006-diciembre 2010. Materiales y Métodos: estudio de cohorte retrospectivo de pacientes con diagnóstico de neumonía nosocomial. Los pacientes elegibles para el estudio fueron mayores de 18 años, tiempo de enfermedad, y condición de egreso conocido (alta o fallecido). Para el análisis de supervivencia se utilizó el método de Kaplan-Meier y regresión de Cox. Resultados: se identificaron 658 pacientes con diagnóstico de neumonía nosocomial, el agente causal fue identificado en 173 (26,75%) casos. La edad media fue 58,4 ± 19,6 años, fallecieron 238 (36,2%) pacientes, la mediana de supervivencia fue de 16 días. El sexo masculino presentó un Hazard Ratio (HR) de 1,15 (IC 95%: 0,89 a 1,49). A las 10 y 20 días la tasa de supervivencia fue de 70% y 40% en aquellos pacientes con Klebsiella, 85% y 75% en aquellos con Pseudomonas, y el 70% y 65% en aquellos con Staphylococcus aureus. En el análisis multivariado, se identificaron la exposición a ventilación mecánica (HR 1,98 (95% IC 1,35- 2,89), el uso de una sonda nasogástrica (HR 1,33 (95% IC 1,01- 1,76) y la edad mayor de 65 años (HR 1,96:95% IC 1,51-2,55). La resistencia a ceftazidima y amikacina (95% HR 1.45 (0.74- 2.84). Conclusiones: en la neumonía nosocomial, la exposición a ventilación mecánica, sonda nasogástrica y edad mayor de 65 años, se asoció con una menor supervivencia. Esto sugiere la instauración de medidas preventivas en este grupo de riesgo

Objectives: to determine factors associated with mortality in patients with nosocomial pneumonia in the Hospital Dos de Mayo, Lima - Peru during the period January 2006-December 2010. Materials and Methods: retrospective cohort study, patients eligible for the study were: age over 18 years of age, sick time record and known exit condition (discharge or deceased). For survival analysis we used the Kaplan- Meier and Cox regression. Results: we identified 658 patients diagnosed with nosocomial pneumonia, and the causative agent was identified in 173 (26,75%). The mean age was 58.4 ± 19.6 years, died 238 (36.2%); patients median survival time was 16 days. Male sex presented HR=1.15, IC95%: 0.89- 1.49. At 10 and 20 days the survival rate was 70% and 40% in those with Klebsiella, 85% and 75% in those with Pseudomonas, and 70% and 65% in those with Staphylococcus aureus. In the multivariate analysis, we identified exposure to mechanical ventilation (HR=1.98, IC95%:1.35-2.89, the use of a nasogastric tube (HR=1.33, IC95%:1.01-1,76) and age over 65 years (HR=1,96, IC95%:1.51-2.55). Resistance to ceftazidime and amikacin (HR=1.45, IC95%:0.74-2.84). Conclusions: in nosocomial pneumonia, the exposure to mechanical ventilation, nasogastric tube and age over 65 years, are associated with lower survival. This suggests the introduction of preventive measures in this risk group