Etiología, clínica y evolución de infecciones fúngicas invasoras en pacientes con neoplasias hematológicas en un hospital universitario de Argentina / Etiology, clinical characteristics and outcomes of invasive fungal infection in patients with hematological malignancies in a university hospital in Argentina

INTRODUCCIÓN: Las infecciones fúngicas invasoras (IFI) en pacientes con neoplasias hematológicas (NH) representan un desafío diagnóstico y terapéutico. OBJETIVOS: Describir la etiología, características clínicas, diagnóstico y evolución de los episodios de IFI probadas y probables en pacientes con NH y trasplante de progenitores hematopoyéticos (TPH). PACIENTES Y MÉTODOS: Estudio descriptivo, retrospectivo y de cohorte que incluyó IFI probadas y probables en pacientes adultos con NH y TPH. Se realizó seguimiento hasta el día 90. RESULTADOS: Se incluyeron 80 episodios de IFI: 49% probadas y 51% probables, 67,5% por hongos filamentosos (HF), 30% por hongos levaduriformes (HL) y 2,5% por hongos dimorfos. Los tipos de IFI más frecuentes fueron aspergilosis invasoras pulmonares (AP) y candidiasis invasoras (CI), en su mayoría por Candida spp. no albicans. Todos los casos de AP se diagnosticaron por detección de galactomanano en sangre y/o lavado broncoalveolar, y solamente 22,2% presentaban nódulos con halo en la tomografía computada (TC) de tórax, siendo los infiltrados inespecíficos los hallazgos más frecuentes. Tuvieron coinfección bacteriana y viral el 30 y 17,5%, respectivamente. El 50% fueron IFI de brecha, y la mortalidad global y mortalidad relacionada a la IFI fue 51 y 24%, respectivamente. CONCLUSIÓN: Los HF fueron la principal causa de IFI, con una gran proporción de IFI de brecha, y presentaron elevada mortalidad. Para el diagnóstico, resulta importante la utilización de biomarcadores y jerarquizar cualquier imagen patológica en la TC.

BACKGROUND: Invasive fungal infections (IFI) in patients with hematological malignancies (HM) represent a diagnostic and therapeutic challenge. AIM: To describe the etiology, clinical characteristics, diagnosis and evolution of proven and probable IFI episodes in patients with HM and hematopoietic stem cell transplantation (HSCT). METHODS: Retrospective, descriptive, cohort study performed in adult patients with HM and HSCT, who developed proven and probable IFI. Follow-up was carried out until day 90. RESULTS: A total of 80 IFI episodes were included: 49% proven and 51% probable, 67,5% due to mold (M), 30% to yeast-like fungi (Y) and 2,5% to dimorphic fungi. The most frequent causes were probable pulmonary aspergillosis (PA) and invasive candidiasis (IC), mainly due to non-albicans Candida species. PA were all diagnosed by detection of galactomannan (GM) in blood and bronchoalveolar lavage, and only 22,2% presented halo sign on chest CT. Bacterial and viral coinfections were reported in 30% and 17,5% respectively. Breakthrough IFI occurred in 50%, and global and IFI-related mortality were 51% and 24% respectively. CONCLUSION: Mold was the main cause of IFI, with a large proportion of breakthrough IFI, presenting high mortality. The use of biomarkers and the classification of any pathological image on CT contribute to the diagnosis.

Análisis de series temporales respecto tasas de mortalidad general e intrahospitalaria en egresos hospitalarios, población pediátrica oncohematológico, Chile 1997-2016 / Analysis of time series related general and in-hospital mortality rates in hospital discharges, pediatric onco hematological population, Chile 1997-2016

INTRODUCTION: Before the start of the GES program in 2002, mortality was 128.2 deaths per million children under 15 years of age (RENCI). This public program managed to ensure the opportunity for diagnosis and treatment in children under 15 years of age and those less than 25 years of age who recur. Objective: To assess how GES has impacted on in-hospital mortality and lethality between1997and 2016. Methods: Retrospective case control study of 28,997 hospital discharges and 12,434 deaths analyzed using Prais-Weinstein time series between the years 1997 to 2016. They prepared contingency tables with data on: hospital discharges, age, sex and forecasts for 2001 and 2016. Fisher's p <0.05 test was used. Results: For the PreGes period an increase of 1.8% in the male crude mortality rate was observed, while for the Post Ges period an increase was observed with a breaking point at the end of 2008, with an increase of 11.04% compared to the PreGes period. An unexpected increase in the female mortality rate was observed. The odd's ratios associated with sex (higher mortality inmen than in women)0.816CI-0.679- 0.982; p <0.05; OR'S age 1,047 (0.981 per year) IC-1.044-1.051; p <0.0001 FORECAST (FONASA-1.942 IC 1.304-2.89 / ISAPRE = 2.186; IC = 1.267-3.773 p <0.005); Hospitalization days = 1.031 confirmed our research hypothesis 1.026-1.035 p <0.0001. Conclusion: This study found that there are statistically significant differences regarding hospital discharges between the public-private system, in relation to mortality andincreasein sustained crudemalemortality between the years1997 to 2016

INTRODUCCIÓN: Antes del inicio del programa GESen2002, la mortalidad era 128,2 muertes por millón de niños menores de 15 años (RENCI). Este programa público logró asegurar la oportunidad de diagnóstico y tratamiento en menores de15 años y aquellos menores de25añosque recidivan. Objetivo: Evaluar cómo el GES ha impactado en la mortalidad y letalidad intrahospitalaria entre1997a2016. Métodos: Estudio retrospectivo de control de casos en 28.997 egresos hospitalarios y 12.434 defunciones analizadas mediante series temporales de Prais-Weinstein entre los años 1997 a 2016. Se prepararon tablas de contingencia con datos sobre: egresos hospitalarios, edad, sexo y previsiones para2001y 2016.Se utilizóla prueba p <0.05de Fisher. Resultados: Se observó para el período PreGES un incremento de 1.8% en la tasa mortalidad cruda masculina, mientras que para el período Post GES se observó un incremento con punto de quiebre a fines del año 2008, con incremento del 11,04% respecto al período PreGES. Se observó incremento no sostenido en la tasa mortalidad femenina. Los odd's ratios asociados al sexo (mayor mortalidad en hombres que en mujeres) 0.816 IC-0.679-0.982; p <0,05; OR'S edad 1,047 (0.981 por año) IC-1.044-1.051; p<0.0001 PREVISIÓN (FONASA-1.942 IC 1.304-2.89 / ISAPRE =2.186; IC= 1,267-3,773 p<0.005); Días de Hospitalización=1,031 confirmó nuestra hipótesis de investigación 1,026-1,035 p<0.0001. Conclusión: Este estudio encontró que hay diferencias estadísticamente significativas respecto egresos hospitalarios entre el sistema público privado, en relación con la mortalidad e incremento en la mortalidad cruda masculina sostenida entre los años 1997 a 2016. acción en la función auditiva mediante audiometría tonal.

Predictors of 7- and 30-day mortality in pediatric intensive care unit patients with cancer and hematologic malignancy infected with Gram-negative bacteria

Background: Infection with Gram-negative bacteria is associated with increased morbidity and mortality. The aim of this study was to evaluate the predictors of 7- and 30-day mortality in pediatric patients in an intensive care unit with cancer and/or hematologic diseases and Gram-negative bacteria infection. Methods: Data were collected relating to all episodes of Gram-negative bacteria infection that occurred in a pediatric intensive care unit between January 2009 and December 2012, and these cases were divided into two groups: those who were deceased seven and 30 days after the date of a positive culture and those who survived the same time frames. Variables of interest included age, gender, presence of solid tumor or hematologic disease, cancer status, central venous catheter use, previous Pseudomonas aeruginosa infection, infection by multidrug resistant-Gram-negative bacteria, colonization by multidrug resistant-Gram- negative bacteria, neutropenia in the preceding seven days, neutropenia duration ≥3 days, healthcare-associated infection, length of stay before intensive care unit admission, length of intensive care unit stay >3 days, appropriate empirical antimicrobial treatment, definitive inadequate antimicrobial treatment, time to initiate adequate antibiotic therapy, appropriate antibiotic duration ≤3 days, and shock. In addition, use of antimicrobial agents, corticosteroids, chemotherapy, or radiation therapy in the previous 30 days was noted. Results: Multivariate logistic regression analysis resulted in significant relationship between shock and both 7-day mortality (odds ratio 12.397; 95% confidence interval 1.291–119.016 p = 0.029) and 30-day mortality (odds ratio 6.174; 95% confidence interval 1.760–21.664 p = 0.004), between antibiotic duration ≤3 days and 7-day mortality (odds ratio 21.328 95% confidence interval 2.834-160.536; p = 0.003), and between colonization by multidrug re...

Factors influencing the early mortality in haematological malignancy patients with nosocomial Gram negative bacilli bacteraemia: a retrospective analysis of 154 cases

BACKGROUND: The aim of this study is to assess the factors influencing the early mortality (7- day after index blood culture) in haematological malignancy patients with Gram negative bacilli (GNB) bacteraemia. METHODS: Infection control committee records were reviewed to identify the cases between March 2006 and June 2011. Only one bacteraemic episode per patient was included in the study. RESULTS: A total of 154 patients with GNB bacteraemia were identified. The early mortality rate was 19.5% (30 out of 154). Blood cultures revealed Enterobacteriacea in 120 patients (Escherichia coli; 86, Klebsiella spp.; 28, Enterobacter cloacea; 6) and glucose non-fermenting GNB in 34 patients (Pseudomonas aeruginosa; 15, Acinetobacter baumannii; 11, Stenotrophomonas maltophilia; 7, Burkholderia cepacia; 1). Forty (33.3%) out of 120 Enterobacteriaceae were extended spectrum beta-lactamase (ESBL) producers and 18 (52.9%) out of 34 glucose non-fermenting GNB were multidrug resistant. Carbapenems were administered as first line therapy in 139 out of 154 patients. In univariate analysis Pitt's bacteraemia score, presence of aplastic anaemia, bacteraemia caused by glucose non-fermentating GNB, inappropriate empirical antibacterial treatment, presence of severe sepsis or septic shock, unable to achieve microbiological cure, and intensive care unit (ICU) acquired bacteraemia were associated with mortality. Multivariate analysis showed ICU acquired bacteraemia (OR, 12.55; 95% CI, 2.34-67.38, p = 0.003) as an independent factor associated with early mortality. CONCLUSION: Haematological malignancy patients who require ICU care are at high risk for early mortality related to GNB bacteraemia. Based on the local findings pointing out high rate of multidrug resistance, carbapenems combined with colistin seems to be a reasonable approach as empirical treatment of these patients. However, increasing carbapenem resistance rate is of concern.

Análisis de la mortalidad en enfermedades Hemato-oncológicas malignas en pediatría en hospitales públicos de Argentina / Analysis of Mortality due to Hemato-Oncological Pediatrics Malignancies in Public Hospitals in Argentina

INTRODUCCIÓN: En Argentina, la mortalidad por enfermedades malignas en edad pediátrica ocupa un lugar relevante y sus causas todavía no han sido estudiadas en el país. OBJETIVO: Analizar las tasas, causas y etapas de los fallecimientos relacionados con neoplasias en centros públicos seleccionados, desde enero de 2000 a diciembre de 2010. MÉTODOS: Se analizaron las historias clínicas de los pacientes fallecidos por cáncer en centros registrados en el Registro Oncopediátrico Hospitalario Argentino (ROHA) y en los registros individuales de los servicios de Hemato-Oncología. Se clasificaron las causas de mortalidad, la etapa en la cual se produjo el óbito y su relación con el tratamiento o con la patología de base. Se pesquisaron las causas de comorbilidad y las demoras en el diagnóstico y tratamiento. RESULTADOS: En 13 centros se analizó exitosamente un promedio >70...

INTRODUCTION: In Argentina, the mortality of pediatric malignant diseases occupies an important place causes have not yet been studied in the country. OBJECTIVE:To analyze mortality rates, causes and moment of death related to neoplasias in selected public centers from January 2000 until December 2010. METHODS: The analysis was conducted in clinical records of patients who died due to cancer. The cases were registered in the Argentine Hospital Oncopediatric Registry (ROHA)and by different registries belonging to hemato-oncological departments. Mortality causes were classified according to the phase of therapy when the event occurred and the relation shipof death with the treatment or underlying disease. Causes of comorbility and delays in diagnosis/treatment were also analyzed. RESULTS: In 13 centers, more than 70...

Câncer da infância e da adolescência: tendência de mortalidade em menores de 20 anos no Brasil / Cancer of childhood and adolescence: mortality trends in children under 20 years in Brazil

O câncer pediátrico corresponde a 2 a 3 por cento de todos os tumores malignos e no mundo são diagnosticados mais de 160.000 casos por ano. O objetivo desse estudo foi analisar a tendência da mortalidade por câncer da infância no país e nas suas cinco regiõesgeográficas, no período de 1981 a 2008 e descrever a tendência de mortalidade por leucemias e linfomas no Brasil e nas capitais brasileiras que dispõem de Registros de Câncer de Base Populacional no período de 1996 a 2008. Foram utilizados dados deóbitos por câncer de menores de 20 anos obtidos do Sistema de Informações sobre Mortalidade/DATASUS. No primeiro artigo foram considerados como óbitos por câncer aqueles cuja causa básica foi codificada como C149-C239 da CID 9, no período 1981-95; e como C00-D48 da CID 10, no período 1996-2008. O período de estudo de1981 a 2006 foi estratificado em sete quadriênios e foram calculadas taxas demortalidade para as neoplasias para o Brasil e as regiões brasileiras, ajustadas pela população mundial. No segundo artigo foram considerados óbitos por leucemias aqueles codificados como C91 a C95 e óbitos por linfomas os codificados como C81 a C85 eC96 de acordo com o CID-10, de indivíduos de ambos os sexos, residentes nas capitais brasileiras, no período de 1996 a 2008. O período de 1996 a 2008 foi estratificado emtriênios e foram calculadas taxas de mortalidade para o Brasil e as capitais, ajustadas pela população mundial. Modelos de regressão polinomial foram utilizados para a análise considerando o nível de significância de 5 por cento.Para o Brasil foi observada tendência de declínio não constante das taxas demortalidade. Para as faixas etárias menor 1 ano e 1 a 4 anos foi observada tendência decrescente e constante da mortalidade por câncer durante todo o período.

Maiores magnitudes das taxas foram observadas para o sexo masculino. As regiões brasileiras que apresentaram taxas de mortalidade mais elevadas foram as regiões Sul e Sudeste.Observou-se aumento da magnitude das taxas padronizadas de mortalidade nas regiões Nordeste e Norte. Na região Centro-oeste observou-se declínio significativo das taxas de mortalidade por câncer. Para linfomas, foi observada tendência de declínio não constante das taxas de mortalidade e não foi observada tendência significativa para amortalidade por leucemias no Brasil. Houve ainda variação da tendência por neoplasias hematológicas segundo capitais brasileiras. As leucemias apresentaram maiores magnitudes de mortalidade para todo o período e para todas as faixas etárias estudadas.Para o grupo dos linfomas houve redução das taxas de mortalidade em todos os grupos etários, exceto o de 10 a 14 anos, sendo observado aumento da mortalidade no último período do estudo. As tendências de declínio observadas no Brasil podem estarrefletindo melhora na sobrevida, particularmente nos anos mais recentes. A variação das taxas de mortalidade por neoplasias hematológicas entre as capitais brasileiras sugere diferenças no acesso ao diagnóstico e tratamento dessas doenças.