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1.
Rev. chil. infectol ; 40(3)jun. 2023.
Artigo em Espanhol | LILACS-Express | LILACS | ID: biblio-1515131

RESUMO

Introducción: La información disponible sobre los factores de riesgo para el desarrollo de shock séptico es escasa, especialmente en población pediátrica. Objetivo: Describir las características epidemiológicas y clínicas de los niños con bacteriemia adquirida en la comunidad por Staphylococcus aureus y comparar las características de los pacientes con y sin shock séptico. Pacientes y Métodos: Estudio de cohorte retrospectivo. Criterios de inclusión: niños entre 30 días y 16 años de edad, internados en el Hospital de Pediatría Juan P. Garrahan entre enero de 2017 y diciembre de 2019 por infecciones adquiridas en la comunidad con desarrollo de S. aureus en hemocultivos. Criterios de exclusión: antecedente de internación dentro de los 3 meses previos al ingreso, vivir en una comunidad cerrada, presencia de catéter de larga permanencia, dispositivos intraventriculares o intraperitoneales. Análisis estadístico: STATA 16. Resultados: Se incluyeron 142 niños. 21 niños (15%) presentaron shock séptico. En el análisis multivariado, se asociaron con shock séptico, la bacteriemia persistente (OR 7,15; IC95% 4,39-23,81; p: 0,001) y el foco secundario de infección (OR 6,72; IC 95% 2,02-22,2; p 0,002). La mortalidad relacionada con la infección fue 3,5% (5 pacientes). Conclusiones: El shock séptico se asoció con la bacteriemia persistente y la presencia de focos secundarios de infección.


Background: Available information about risk factors for the development of septic shock is scarce, especially in the pediatric population. Aim: To describe the epidemiological and clinical characteristics of children with community-acquired Staphylococcus aureus bacteremia and to compare the characteristics of children with and without septic shock. Methods: Retrospective cohort study. Inclusion criteria: Children between 30 days and 16 years old, hospitalized in the Juan P. Garrahan Pediatric Hospital between January 2017 and December 2019 for community-acquired infections with S. aureus isolation in blood cultures. Exclusion criteria: History of hospitalization within 3 months prior to admission, living in a closed community, presence of long-term catheter, intraventricular or intraperitoneal devices. Statistical analysis: STATA 16. Results: 142 children were included. 21 children (15%) experienced septic shock. On multivariate analysis, persistent bacteremia (OR 7.15, 95% CI 4.39-23.81, p: 0.001) and secondary focus of infection (OR 6.72, 95% CI 2.02-22.2, p 0.002) were associated with septic shock. The infection-related mortality rate was 3.5% (5 patients). Conclusions: Septic shock was associated with persistent bacteremia and the presence of secondary foci of infection.

2.
Enferm. infecc. microbiol. clín. (Ed. impr.) ; 41(4): 221-224, Abr. 2023. tab
Artigo em Espanhol | IBECS | ID: ibc-218761

RESUMO

Introducción: Las bacterias del género Pseudomonas actúan como patógenos oportunistas. Pseudomonas putida se ha considerado un patógeno de baja virulencia y sensible a múltiples antibióticos, pero en los últimos años han emergido cepas resistentes. El objetivo de este estudio es describir las características clínicas, la evolución y la resistencia antibiótica de episodios de bacteriemia por P. putida en pacientes pediátricos internados. Métodos: Serie de casos retrospectiva. Se incluyeron pacientes pediátricos internados en el Hospital Prof. Dr. Juan P. Garrahan de la Ciudad de Buenos Aires, Argentina, con aislamiento en hemocultivos de P. putida, entre agosto de 2015 y agosto de 2020. Resultados: Muestra formada por 13 pacientes. Mediana de edad: 81 meses (RIC 15-163 meses). Diez pacientes eran inmunodeprimidos (77%), 11 (85%) tenían catéter venoso central, 2 (15%) recibieron transfusiones antes del episodio de bacteriemia y 6 (46%) habían tenido algún procedimiento invasivo en los 30 días previos. Tres pacientes (23%) presentaron bacteriemia secundaria a foco clínico y 10 (77%) bacteriemia asociada a catéter venoso central. Todos presentaron fiebre, el 62% (8) evolucionó con sepsis y el 15% (2) con shock séptico. Dos pacientes requirieron ingreso en la unidad de cuidados intensivos (15%), y en 7 (54%) se retiró el catéter venoso central. Ninguno falleció. La mediana de días de tratamiento fue de 14 (RIC 10-14). La resistencia a carbapenémicos fue del 30%. Conclusión: Todos los niños tuvieron comorbilidades subyacentes, en su mayoría inmunodepresión. Predominó la infección asociada a catéter. La sensibilidad a los antibióticos fue variable. Ante la emergencia de cepas multirresistentes, es fundamental conocer la epidemiología local.(AU)


Introduction: Bacteria of the genus Pseudomonas act as opportunistic pathogens. Pseudomonas putida has been considered a pathogen of low virulence and susceptible to multiple antibiotics, but in recent years resistant strains have emerged. The objective of this study is to describe the clinical characteristics, evolution and antibiotic resistance of P. putida bacteremia documented in pediatric hospitalized patients. Methods: Retrospective cases series. Pediatric patients admitted to the Prof. Dr. Juan P. Garrahan Hospital of Buenos Aires City, Argentina, with isolation in blood cultures of P. putida were included, between August 2015 and August 2020. Results: Sample consisting of 13 patients. Median age: 81 months (IQR 15-163). Ten of the patients were immunocompromised (77%), 11 (85%) had a central venous catheter, 2 (15%) received transfusions prior to the episode of bacteremia, and 6 (46%) had had an invasive procedure within the previous 30 days. Three patients (23%) presented bacteremia secondary to clinical focus and 10 (77%) had central venous catheter-associated bacteremia. All presented fever, 62% (8) evolved with sepsis and 15% (2) with septic shock. Two patients required admission to the intensive care unit (15%), and in 7 (54%) the central venous catheter was removed. None died. The median days of treatment was 14 (IQR 10-14). Resistance to carbapenems was 30%. Conclusion: All children had underlying comorbidities, most of them immunocompromised. Catheter-associated infection predominated. The sensitivity to antibiotics was variable. Given the emergence of multi-resistant strains, it is essential to know the local epidemiology.(AU)


Assuntos
Humanos , Masculino , Feminino , Criança , Bacteriemia , Pseudomonas putida , Resistência Microbiana a Medicamentos , Cateteres Venosos Centrais , Infecção Hospitalar , Estudos Retrospectivos , Argentina
3.
Enferm Infecc Microbiol Clin (Engl Ed) ; 41(4): 221-224, 2023 04.
Artigo em Inglês | MEDLINE | ID: mdl-35907772

RESUMO

INTRODUCTION: Bacteria of the genus Pseudomonas act as opportunistic pathogens. Pseudomonas putida has been considered a pathogen of low virulence and susceptible to multiple antibiotics, but in recent years resistant strains have emerged. The objective of this study is to describe the clinical characteristics, evolution and antibiotic resistance of P. putida bacteremia documented in pediatric hospitalized patients. METHODS: Retrospective cases series. Pediatric patients admitted to the Prof. Dr. Juan P. Garrahan Hospital of Buenos Aires City, Argentina, with isolation in blood cultures of P. putida were included, between August 2015 and August 2020. RESULTS: Sample consisting of 13 patients. Median age: 81 months (IQR 15-163). Ten of the patients were immunocompromised (77%), 11 (85%) had a central venous catheter, 2 (15%) received transfusions prior to the episode of bacteremia, and 6 (46%) had had an invasive procedure within the previous 30 days. Three patients (23%) presented bacteremia secondary to clinical focus and 10 (77%) had central venous catheter-associated bacteremia. All presented fever, 62% (8) evolved with sepsis and 15% (2) with septic shock. Two patients required admission to the intensive care unit (15%), and in 7 (54%) the central venous catheter was removed. None died. The median days of treatment was 14 (IQR 10-14). Resistance to carbapenems was 30%. CONCLUSION: All children had underlying comorbidities, most of them immunocompromised. Catheter-associated infection predominated. The sensitivity to antibiotics was variable. Given the emergence of multi-resistant strains, it is essential to know the local epidemiology.


Assuntos
Bacteriemia , Pseudomonas putida , Humanos , Criança , Estudos Retrospectivos , Antibacterianos/uso terapêutico , Carbapenêmicos/uso terapêutico , Bacteriemia/microbiologia
4.
Acta bioquím. clín. latinoam ; 55(2): 171-175, abr. 2021. graf
Artigo em Espanhol | LILACS-Express | LILACS, BINACIS | ID: biblio-1355559

RESUMO

Resumen La bacteriemia por Campylobacter spp. es infrecuente y ocurre principalmente en pacientes inmunocomprometidos. El objetivo de este trabajo retrospectivo fue describir los casos de bacteriemia por Campylobacter registrados entre enero de 2014 y septiembre de 2020 en niños admitidos en el hospital. Se documentaron sus datos demográficos y clínicos y los datos microbiológicos de los aislados. Los hemocultivos se procesaron en Bact/ Alert 3D®, la identificación bacteriana se realizó por espectrometría de masas y la sensibilidad antimicrobiana por difusión con discos. Se registraron 21 aislamientos de Campylobacter (n): Campylobacter jejuni (16), Campylobacter upsaliensis (3), Campylobacter coli (1) y Campylobacter ureolyticus (1). Todos fueron sensibles a meropenem, el 88% a eritromicina y el 27% a ciprofloxacina. Los pacientes tenían una mediana de edad de 34 meses y el 67% algún tipo de inmunocompromiso. El 81% presentó fiebre y el 33% gastroenteritis. Se destaca la importancia de la sospecha de este microorganismo en hemocultivos de pacientes inmunosuprimidos.


Abstract Bacteremia due to Campylobacter spp. is an uncommon infection. It occurs mainly in immunocompromised patients. The objective of this retrospective study was to describe the cases of Campylobacter`s bacteremia registered between January 2014 and September 2020 in children admitted to the hospital. Demographic, clinical and microbiological data were recorded. Blood cultures were processed in Bact/Alert 3D®, bacterial identification was performed by mass spectrometry and antimicrobial susceptibility by the disk diffusion method. Twenty-one Campylobacter isolates were recorded: Campylobacter jejuni (16), Campylobacter upsaliensis (3), Campylobacter coli (1), and Campylobacter ureolyticus (1). All of them were susceptible to meropenem, 88% to erythromycin, and 27% to ciprofloxacin. Median age of the patients was 34 months. Sixty seven percent carried some kind of immunocompromise. Fever and gastroenteritis was present in 81% and 33% of the patients respectively. The importance of suspecting this microorganism in blood cultures from immunocompromised patients is highlighted.


Resumo Bacteremia por Campylobacter spp. é infrequente e ocorre principalmente em pacientes imunocomprometidos. O objetivo deste trabalho retrospectivo foi descrever os casos de bacteremia por Campylobacter registrados entre janeiro de 2014 e setembro de 2020 em crianças internadas no hospital. Os dados demográficos e clínicos dos pacientes e os dados microbiológicos dos isolados foram registrados. As hemoculturas foram processadas em Bact/Alert 3D®, a identificação bacteriana foi realizada por espectrometria de massas e a sensibilidade antimicrobiana por difusão com discos. Foram registrados 21 isolados de Campylobacter (n): Campylobacter jejuni (16), Campylobacter upsaliensis (3), Campylobacter coli (1) e Campylobacter ureolyticus (1). Todos foram sensíveis a meropenem, 88% a eritromicina e 27% a ciprofloxacina. Os pacientes tinham uma mediana de idade de 34 meses e 67% apresentavam algum tipo de imunocomprometimento. Apresentaram febre 81% e 33% gastroenterite. Destaca-se a importância da suspeita desse microorganismo em hemoculturas de pacientes imunossuprimidos.


Assuntos
Humanos
5.
Rev. argent. microbiol ; 52(4): 11-20, dic. 2020. graf
Artigo em Inglês | LILACS | ID: biblio-1340916

RESUMO

Abstract Invasive Streptococcus pyogenes diseases represent the most severe form of infection produced by this microorganism. Early diagnosis and treatment are important, due to its potential severity. Etiological confirmation of invasive infection is performed by culture, which takes between 18 and 48 h. We tested a rapid immunochromatographic assay directly from clinical samples from normally sterile sites and positive blood culture bottles when pos-itive cocci chains were observed by Gram staining. Eighty samples were analyzed. The rapid test was positive in 35 samples: in 34 of them S. pyogenes was confirmed by culture. The immunochromatographic method showed 97.1% sensitivity and 97.8% specificity. The strept A® immunochromatographic rapid test allows to obtain reliable results in less than 10min and is accessible to any microbiology laboratory. This study demonstrates the potential use of a rapid immunochromatographic method directly from clinical samples and positive blood cultures.


Resumen La enfermedad invasiva por Streptococcus pyogenes representa la forma más grave de infección producida por este microorganismo y requiere un rápido diagnóstico, a fin de instaurar un tratamiento adecuado. La confirmación etiológica de esta infección se realiza por cultivo, lo que puede llevar entre 18 y 48 h. En este estudio ensayamos una prueba inmunocromatográfica rápida directamente de muestras clínicas de sitios normalmente estériles y de botellas de hemocultivos positivos cuando la coloración de Gram evidenció cocos gram positivos en cadena. Se analizaron 80 muestras. La prueba rápida fue positiva en 35 muestras: en 34 de ellas se confirmó la presencia de S. pyogenes por cultivo. La sensibilidad y la especificidad de la prueba fueron del 97,1 y el 97,8%, respectivamente. La prueba inmunocromatográfica rápida monteBIO Strep A® permite obtener resultados confiables en menos de 10 min y es accesible para cualquier laboratorio de microbiología. Este estudio demuestra la utilidad de dicha prueba para ser practicada directamente en muestras clínicas y botellas de hemocultivos positivos.


Assuntos
Humanos , Infecções Estreptocócicas , Streptococcus pyogenes , Infecções Estreptocócicas/diagnóstico , Imunoensaio , Cromatografia de Afinidade , Sensibilidade e Especificidade , Testes Diagnósticos de Rotina
6.
Rev Chilena Infectol ; 37(2): 157-162, 2020 Apr.
Artigo em Espanhol | MEDLINE | ID: mdl-32730482

RESUMO

BACKGROUND: The epidemiology of osteoarticular infections (IOA) has changed in recent years. The incidence of Kingella kingae in Latin America is unknown. AIMS: To describe the epidemiology in patients with IOA in a children hospital. To estimate the incidence of IOA due to K. kingae and compare with other etiologies. METHODS: Prospective cohort. Patients older than 1 month hospitalized between March, 1th 2017 and February, 28th 2019 with suspected IOA and diagnostic procedure (biopsy or arthrocentesis) were included. STATA 13 was used. RESULTS: n: 84 patients. The etiology was identified in 58 patients (69.1%). Staphylococus aureus predominated (n: 44; 52.4%) and K. kingae (n: 9; 10.8%). In the period studied, the incidence of IOA by K. kingae was 10.8 cases per 100 hospitalized IOA. In multivariate analysis, age less than 4 years (OR 13.8, 95% CI 5.5-82.7), recent respiratory symptoms (OR 5.7, 95% CI 3.5-31.6, p 0.04) and normalization before the fifth day of C-reactive protein (CRP) (OR 3.38 95% CI 1.8-16.3, p 0.01) were associated with IOA by K. kingae. CONCLUSIONS: In this cohort of children the incidence of K. kingae was 10.8 cases per 100 IOA. Kingella kingae represented the second documented etiology, after S. aureus. Age under 4 years, recent respiratory symptoms and normalization before the fifth day of quantitative CRP were statistically associated with IOA by K. kingae.


Assuntos
Artrite Infecciosa , Kingella kingae , Infecções por Neisseriaceae , Criança , Hospitais Pediátricos , Humanos , Estudos Prospectivos , Staphylococcus aureus
7.
Rev. chil. infectol ; 37(2): 157-162, abr. 2020. tab
Artigo em Espanhol | LILACS | ID: biblio-1126102

RESUMO

Resumen Introducción: La epidemiología de las infecciones osteo-articulares (IOA) se ha modificado en los últimos años. La incidencia de Kingella kingae en Latinoamérica es desconocida. Objetivo: Describir la epidemiología de los niños con IOA. Estimar la incidencia de IOA causadas por K. kingae y compararlas con otras etiologías. Material y Métodos: Cohorte prospectiva. Se incluyeron pacientes mayores de 1 mes de edad, hospitalizados entre el 1 de marzo de 2017 y 28 de febrero de 2019, con sospecha de IOA y procedimiento diagnóstico (biopsia o artrocentesis). Se utilizó STATA 13. Resultados: n: 84 pacientes. Se identificó la etiología en 58 pacientes (69,1%). Predominaron Staphylococcus aureus (n: 44; 52,4%) y K. kingae (n: 9; 10,8%). En el período estudiado, la incidencia de IOA por K. kingae fue de 10,8 casos cada 100 IOA hospitalizadas. En el análisis multivariado, la edad inferior a 4 años (OR 13,8, IC95% 5,5-82,7), el cuadro respiratorio reciente (OR 5,7, IC95% 3,5-31,6, p 0,04) y la normalización antes del quinto día de la proteína C reactiva (PCR) (OR 3,8 IC95% 1,8- 16,3, p 0,01) se asociaron con las IOA por K. kingae. Conclusiones: En esta cohorte de niños, la incidencia de K.kingae fue de 10,8 casos cada 100 IOA. Kingella kingae representó la segunda etiología documentada, luego de S. aureus. La edad inferior a 4 años, el cuadro respiratorio reciente y la normalización antes del quinto día de la PCR cuantitativa se asociaron estadísticamente con IOA por K. kingae.


Abstract Background: The epidemiology of osteoarticular infections (IOA) has changed in recent years. The incidence of Kingella kingae in Latin America is unknown. Aims: To describe the epidemiology in patients with IOA in a children hospital. To estimate the incidence of IOA due to K. kingae and compare with other etiologies. Methods: Prospective cohort. Patients older than 1 month hospitalized between March, 1th 2017 and February, 28th 2019 with suspected IOA and diagnostic procedure (biopsy or arthrocentesis) were included. STATA 13 was used. Results: n: 84 patients. The etiology was identified in 58 patients (69.1%). Staphylococus aureus predominated (n: 44; 52.4%) and K. kingae (n: 9; 10.8%). In the period studied, the incidence of IOA by K. kingae was 10.8 cases per 100 hospitalized IOA. In multivariate analysis, age less than 4 years (OR 13.8, 95% CI 5.5-82.7), recent respiratory symptoms (OR 5.7, 95% CI 3.5-31.6, p 0.04) and normalization before the fifth day of C-reactive protein (CRP) (OR 3.38 95% CI 1.8-16.3, p 0.01) were associated with IOA by K. kingae. Conclusions: In this cohort of children the incidence of K. kingae was 10.8 cases per 100 IOA. Kingella kingae represented the second documented etiology, after S. aureus. Age under 4 years, recent respiratory symptoms and normalization before the fifth day of quantitative CRP were statistically associated with IOA by K. kingae.


Assuntos
Humanos , Criança , Artrite Infecciosa , Infecções por Neisseriaceae , Kingella kingae , Staphylococcus aureus , Estudos Prospectivos , Hospitais Pediátricos
8.
Rev Argent Microbiol ; 52(4): 261-265, 2020.
Artigo em Inglês | MEDLINE | ID: mdl-31926748

RESUMO

Invasive Streptococcus pyogenes diseases represent the most severe form of infection produced by this microorganism. Early diagnosis and treatment are important, due to its potential severity. Etiological confirmation of invasive infection is performed by culture, which takes between 18 and 48h. We tested a rapid immunochromatographic assay directly from clinical samples from normally sterile sites and positive blood culture bottles when positive cocci chains were observed by Gram staining. Eighty samples were analyzed. The rapid test was positive in 35 samples: in 34 of them S. pyogenes was confirmed by culture. The immunochromatographic method showed 97.1% sensitivity and 97.8% specificity. The strept A® immunochromatographic rapid test allows to obtain reliable results in less than 10min and is accessible to any microbiology laboratory. This study demonstrates the potential use of a rapid immunochromatographic method directly from clinical samples and positive blood cultures.


Assuntos
Infecções Estreptocócicas , Streptococcus pyogenes , Cromatografia de Afinidade , Testes Diagnósticos de Rotina , Humanos , Imunoensaio , Sensibilidade e Especificidade , Infecções Estreptocócicas/diagnóstico
9.
Arch. argent. pediatr ; 117(2): 128-131, abr. 2019. ilus, tab
Artigo em Inglês, Espanhol | LILACS, BINACIS | ID: biblio-1001166

RESUMO

El objetivo fue describir las características epidemiológicas, clínicas, microbiológicas, evolutivas y los factores de riesgo de mortalidad. Estudio de cohorte retrospectivo. Se incluyeron 100 pacientes. Ingresaron con shock séptico 42 (42 %) y 56 (56 %) fueron admitidos a la Unidad de Cuidados Intensivos. La bacteriemia fue primaria en 17 pacientes ( 17 %), asociada a catéter en 15 (15 %) y secundaria en 68 (el 68 %). El foco más frecuente fue mucocutáneo. La resistencia a uno o más grupos de antibióticos fue del 38 %. Fallecieron 31 pacientes (31 %). Los factores de riesgo de mortalidad fueron shock séptico (p < 0,0005), ingreso a la Unidad de Cuidados Intensivos (p < 0,0001), bacteriemia primaria (p < 0,009) o secundaria no asociada a catéter (p < 0,003), presencia de foco mucocutáneo o pulmonar (p < 0,004) y la multirresistencia antibiótica (p < 0,01) o resistencia solo a carbapenemes (p < 0,01).


The objective was to describe the epidemiological, clinical, microbiological, and evolutionary characteristics and the risk factors for mortality. Retrospective, cohort study. A total of 100 patients were included. Of these, 42 (42 %) had septic shock upon admission and 56 (56 %) were admitted to the intensive care unit. Bacteremia was primary in 17 patients (17 %); catheter-related, in 15 (15 %); and secondary, in 68 (68 %). The most common source of infection was the skin and mucous membrane. Resistance to one or more antibiotic groups was 38 %. Thirty-one patients died (31 %). Risk factors for mortality were septic shock (p < 0.0005), admission to the intensive care unit (p < 0.0001), primary bacteremia (p < 0.009) or secondary, non-catheter-related bacteremia (p < 0.003), presence of mucocutaneous or pulmonary source of infection (p < 0.004), and multidrug resistance (p < 0.01) or resistance to carbapenems (p < 0.01).


Assuntos
Humanos , Pré-Escolar , Pediatria , Pseudomonas aeruginosa , Mortalidade , Bacteriemia
10.
Arch Argent Pediatr ; 117(2): 128-131, 2019 04 01.
Artigo em Inglês, Espanhol | MEDLINE | ID: mdl-30869488

RESUMO

The objective was to describe the epidemiological, clinical, microbiological, and evolutionary characteristics and the risk factors for mortality. Retrospective, cohort study. A total of 100 patients were included. Of these, 42 (42 %) had septic shock upon admission and 56 (56 %) were admitted to the intensive care unit. Bacteremia was primary in 17 patients (17 %); catheter-related, in 15 (15 %); and secondary, in 68 (68 %). The most common source of infection was the skin and mucous membrane. Resistance to one or more antibiotic groups was 38 %. Thirty-one patients died (31 %). Risk factors for mortality were septic shock (p < 0.0005), admission to the intensive care unit (p < 0.0001), primary bacteremia (p < 0.009) or secondary, non-catheter-related bacteremia (p < 0.003), presence of mucocutaneous or pulmonary source of infection (p < 0.004), and multidrug resistance (p < 0.01) or resistance to carbapenems (p < 0.01).


El objetivo fue describir las características epidemiológicas, clínicas, microbiológicas, evolutivas y los factores de riesgo de mortalidad. Estudio de cohorte retrospectivo. Se incluyeron 100 pacientes. Ingresaron con shock séptico 42 (42 %) y 56 (56 %) fueron admitidos a la Unidad de Cuidados Intensivos. La bacteriemia fue primaria en 17 pacientes ( 17 %), asociada a catéter en 15 (15 %) y secundaria en 68 (el 68 %). El foco más frecuente fue mucocutáneo. La resistencia a uno o más grupos de antibióticos fue del 38 %. Fallecieron 31 pacientes (31 %). Los factores de riesgo de mortalidad fueron shock séptico (p < 0,0005), ingreso a la Unidad de Cuidados Intensivos (p < 0,0001), bacteriemia primaria (p < 0,009) o secundaria no asociada a catéter (p < 0,003), presencia de foco mucocutáneo o pulmonar (p < 0,004) y la multirresistencia antibiótica (p < 0,01) o resistencia solo a carbapenemes (p < 0,01).


Assuntos
Bacteriemia/epidemiologia , Infecções por Pseudomonas/epidemiologia , Pseudomonas aeruginosa/isolamento & purificação , Antibacterianos/administração & dosagem , Bacteriemia/microbiologia , Bacteriemia/mortalidade , Criança , Pré-Escolar , Estudos de Coortes , Farmacorresistência Bacteriana Múltipla , Feminino , Humanos , Lactente , Unidades de Terapia Intensiva/estatística & dados numéricos , Masculino , Infecções por Pseudomonas/microbiologia , Infecções por Pseudomonas/mortalidade , Pseudomonas aeruginosa/efeitos dos fármacos , Estudos Retrospectivos , Fatores de Risco
11.
Rev Chilena Infectol ; 35(3): 233-238, 2018.
Artigo em Espanhol | MEDLINE | ID: mdl-30534901

RESUMO

INTRODUCTION: Bacteremia is a frequent complication in children with cancer, which is associated with greater severity, prolonged hospitalization and mortality. Prolonged hospitalization conditions greater morbidity and risk of acquisition of intranosocomial infections. AIM: To describe risk factors for prolonged hospital length of stay in children with leukemia and bacteremia. METHODS: Cohort study. Episodes of bacteremia in patients with leukemia at Garrahan Hospital from 1/1/2015 to 31/12/2016 were reviewed. We compared data from patients with a LOS of 14 days or more with those admitted for less than 14 days. Bivariate and logistic regression analysis was performed. We used Stata 13 statistical package. RESULTS: n = 121. Median age 59 months.81 patients (67%) had a diagnosis of acute lymphoblastic leukemia, followed by acute myeloid leukemia in 40 (33%). 96 patients (79%) had a central venous catheter (CVC), 94 patients (78%) were neutropenic. Blood cultures were positive for Enterobacteriaceae in 55 cases (45%), coagulase-negative staphylococci in 28 cases (23%), Group viridans Streptococcus in 19 (16%), Pseudomonas aeruginosa in 8 (7%). (9%). By the multivariate analysis, three factors remained significantly associated with length of stay of more than 14 days: CVC associated bacteremia (OR 21,73; CI95% 1.2-43.2; p 0.04), severe neutropenia (OR 1.75; CI95% 1.82-1.28; p 0.03) and coinfection (OR 27.4; CI95% 2.8-260.8; p 0.004). CONCLUSION: CVC associated bacteremia, severe neutropenia and viral coinfection were associated with hospital LOS of more than 14 days.


Assuntos
Bacteriemia/etiologia , Leucemia Mieloide Aguda/complicações , Neutropenia/etiologia , Leucemia-Linfoma Linfoblástico de Células Precursoras/complicações , Bacteriemia/microbiologia , Criança , Pré-Escolar , Estudos de Coortes , Feminino , Humanos , Tempo de Internação , Leucemia Mieloide Aguda/microbiologia , Masculino , Neutropenia/microbiologia , Leucemia-Linfoma Linfoblástico de Células Precursoras/microbiologia , Estudos Retrospectivos , Fatores de Risco
12.
Enferm. infecc. microbiol. clín. (Ed. impr.) ; 36(8): 493-497, oct. 2018. tab
Artigo em Espanhol | IBECS | ID: ibc-176807

RESUMO

INTRODUCCIÓN: La bacteriemia por Staphylococcus aureus (SA) adquirida en la comunidad representa una causa frecuente de ingreso en niños. La aparición de focos secundarios (FS) condiciona una mayor morbimortalidad. OBJETIVOS: Identificar factores de riesgo de aparición de FS de infección en niños con bacteriemia por SA de la comunidad. MATERIAL Y MÉTODOS: Cohorte prospectiva. Desde enero de 2010 a diciembre de 2016 se incluyeron todos los niños (de 30 días a 16 años), hospitalizados en un hospital pediátrico de derivación por infecciones adquiridas en la comunidad, con aislamiento de SA en hemocultivos. Se compararon características microbiológicas, demográficas y clínicas según presentaran o no FS de infección tras 72 h de hospitalización. RESULTADOS: Se incluyeron 283 niños, el 65% varones (n = 184), con una mediana de edad de 60 meses (RIC: 30-132). El 17% (n = 48) tenían alguna enfermedad de base y el 97% (n = 275) un foco clínico de infección, siendo los más frecuentes: osteoarticular el 55% (n = 156) y abscesos de partes blandas el 27% (n = 79). El 65% (n = 185) eran SA resistentes a meticilina. Presentaron FS el 16% de los pacientes (n = 44): neumonía el 73% (n = 32), osteoarticular el 11% (n = 5), partes blandas el 11% (n = 5) y sistema nervioso central el 5% (n = 2). En el análisis multivariado fueron predictores de FS la persistencia de hemocultivos positivos tras el quinto día (OR: 2,40; IC95%: 1,07-5,37; p < 0,001) y la sepsis (OR: 17,23; IC95%: 5,21-56,9; p < 0,001). No hubo asociación con la sensibilidad a la meticilina. CONCLUSIONES: En esta cohorte predominaron las infecciones por SA resistente a la meticilina. La aparición de FS se asoció con la persistencia de la bacteriemia después del quinto día y la sepsis al ingreso


INTRODUCTION: Community-acquired Staphylococcus aureus (SA) bacteraemia is a common cause of hospitalisation in children. The occurrence of secondary foci (SF) of SA infection is associated with higher morbidity and mortality. OBJECTIVES: To identify risk factors for SF of infection in children with community-acquired SA bacteraemia. MATERIAL AND METHODS: Prospective cohort. All children aged from 30 days to 16 years admitted to a paediatric referral hospital between January 2010 and December 2016 for community-acquired infections, with SA isolated in blood cultures, were included. Microbiological, demographic and clinical characteristics were compared, with or without SF infection after 72 hours of hospitalisation. RESULTS: A total of 283 patients were included, 65% male (n = 184), with a median age of 60 months (IQR: 30-132). Seventeen per cent (n = 48) had at least one underlying disease and 97% (n = 275) had some clinical focus of infection, the most common being: osteoarticular 55% (n = 156) and soft tissue abscesses 27% (n = 79). A total of 65% (n = 185) were resistant to methicillin. A SF of infection was found in 16% of patients (n = 44). The SF identified were pneumonia 73% (n=32), osteoarticular 11% (n = 5), soft tissue 11% (n = 5) and central nervous system 5% (n=2). In the multivariate analysis, the persistence of positive blood cultures after the fifth day (OR: 2.40, 95%CI: 1.07-5.37, P < 0.001) and sepsis (OR: 17.23, 95%CI 5.21-56.9, P < 0.001) were predictors of SF. There was no association with methicillin sensitivity. CONCLUSIONS: In this cohort, methicillin-resistant SA infections predominated. The occurrence of SF of infection was associated with the persistence of bacteraemia after the fifth day and sepsis on admission


Assuntos
Humanos , Masculino , Feminino , Pré-Escolar , Criança , Bacteriemia/epidemiologia , Bacteriemia/microbiologia , Staphylococcus aureus/isolamento & purificação , Infecções Estafilocócicas/epidemiologia , Infecções Estafilocócicas/microbiologia , Infecções Comunitárias Adquiridas/epidemiologia , Infecções Comunitárias Adquiridas/microbiologia , Estudos de Coortes , Argentina/epidemiologia , Fatores de Risco
13.
Arch. argent. pediatr ; 116(2): 204-209, abr. 2018. tab
Artigo em Inglês, Espanhol | LILACS, BINACIS | ID: biblio-887461

RESUMO

Introducción. Las infecciones osteoarticulares son una importante causa de morbilidad y pueden presentar bacteriemia. La epidemiología de estas infecciones se ha modificado en los últimos años. Objetivos. Describir las características epidemiológicas, clínicas y evolutivas de los niños con infecciones osteoarticulares y comparar los pacientes con bacteriemia con los que no la presentaron. Población y métodos. Cohorte retrospectiva. Se incluyeron pacientes menores de 18 años, admitidos en el Hospital Juan P. Garrahan entre el 1/1/2016 y el 31/12/2016 con sospecha de infecciones osteoarticulares en quienes se hubiese realizado artrocentesis y/o biopsia articular. Se excluyeron niños con patología previa. Se compararon las características clínicas y de laboratorio según tuvieran bacteriemia o no. Se utilizó Stata 10. Resultados. N: 62. La mediana de edad fue 59.5 meses (rango intercuartilo -RIC- 24-84). Presentaron fiebre 44 pacientes (70%). Predominaron las artritis (54 pacientes, 87%). Se identificó un agente etiológico en 29 pacientes (47%). Predominó Staphylococcus aureus (n: 20, 32%). Tuvieron bacteriemia 15 de ellos (24%). Recibieron clindamicina como tratamiento empírico 56 pacientes (90%). La mediana de tratamiento endovenoso fue 7 días (RIC 5-11) y de internación, 7 días (RIC 4-12). Los pacientes con bacteriemia tuvieron menor edad (26 meses vs. 60, p < 0,05), mayor valor de proteína C reactiva inicial (101 vs. 33 U/L, p < 0,05), menor valor de hemoglobina al ingresar (10,8 g/dl vs. 12.5 g/dl, p 0,04) y mayor frecuencia de fiebre (100% vs. 57%, p < 0,05). Conclusiones. Predominó Staphylococcus aureus. Los niños con bacteriemia tuvieron menor edad, mayor valor de proteína C reactiva, menos hemoglobina al ingresar y, más frecuentemente, fiebre.


Introduction. Osteoarticular infections are an important cause of morbidity and may present with bacteremia. The epidemiology has changed in recent years. Objectives. To describe the epidemiological, clinical, and evolutionary characteristics of children with osteoarticular infections and compare patients with and without bacteremia. Population and methods. Retrospective cohort. Patients younger than 18 years admitted between January 1st, 2016 and December 31st, 2016 suspected of osteoarticular infections who had undergone an arthrocentesis and/or joint biopsy were included. Clinical and laboratory characteristics were compared between patients with and without bacteremia. The Stata 10 software was used.Results. N: 62. Patients' median age was 59.5 months (interquartile range [IQR]: 24-84). Fever developed in 44 patients (70%). Arthritis predominated (54 patients, 87%). An etiologic agent was identified in 29 patients (47%). Staphylococcus aureus was prevalent (n: 20, 32%). Among these, 15 developed bacteremia (24%). Clindamycin was administered to 56 patients (90%) as empirical therapy. The median intravenous treatment duration was 7 days (IQR: 5-11) and the median length of stay, 7 days (IQR: 4-12). Patients with bacteremia were younger (26 months versus 60 months, p < 0.05), had a higher baseline C-reactive protein level (101 U/L versus 33 U/L, p < 0.05), a lower hemoglobin level at the time of admission (10.8 g/dL versus 12.5 g/dL, p = 0.04), and a higher frequency of fever (100% versus 57%, p < 0.05).Conclusions. Staphylococcus aureus was prevalent. Children with bacteremia were younger, had a higher C-reactive protein level, a lower hemoglobin level at the time of admission, and 100% presented fever


Assuntos
Humanos , Masculino , Feminino , Lactente , Pré-Escolar , Criança , Adolescente , Osteoartrite/diagnóstico , Osteoartrite/epidemiologia , Osteomielite/diagnóstico , Osteomielite/epidemiologia , Artrite/diagnóstico , Artrite/epidemiologia , Doenças Ósseas Infecciosas/diagnóstico , Doenças Ósseas Infecciosas/epidemiologia , Bacteriemia/diagnóstico , Osteoartrite/microbiologia , Osteomielite/microbiologia , Artrite/microbiologia , Doenças Ósseas Infecciosas/complicações , Estudos Retrospectivos , Estudos de Coortes , Bacteriemia/complicações , Bacteriemia/epidemiologia , Centros de Atenção Terciária , Hospitais Pediátricos
14.
Arch Argent Pediatr ; 116(2): e204-e209, 2018 Apr 01.
Artigo em Inglês, Espanhol | MEDLINE | ID: mdl-29557602

RESUMO

INTRODUCTION: Osteoarticular infections are an important cause of morbidity and may present with bacteremia. The epidemiology has changed in recent years. OBJECTIVES: To describe the epidemiological, clinical, and evolutionary characteristics of children with osteoarticular infections and compare patients with and without bacteremia. POPULATION AND METHODS: Retrospective cohort. Patients younger than 18 years admitted between January 1st, 2016 and December 31st, 2016 suspected of osteoarticular infections who had undergone an arthrocentesis and/or joint biopsy were included. Clinical and laboratory characteristics were compared between patients with and without bacteremia. The Stata 10 software was used. RESULTS: N: 62. Patients' median age was 59.5 months (interquartile range [IQR]: 24-84). Fever developed in 44 patients (70%). Arthritis predominated (54 patients, 87%). An etiologic agent was identified in 29 patients (47%). Staphylococcus aureus was prevalent (n: 20, 32%). Among these, 15 developed bacteremia (24%). Clindamycin was administered to 56 patients (90%) as empirical therapy. The median intravenous treatment duration was 7 days (IQR: 5-11) and the median length of stay, 7 days (IQR: 4-12). Patients with bacteremia were younger (26 months versus 60 months, p < 0.05), had a higher baseline C-reactive protein level (101 U/L versus 33 U/L, p < 0.05), a lower hemoglobin level at the time of admission (10.8 g/dL versus 12.5 g/dL, p = 0.04), and a higher frequency of fever (100% versus 57%, p < 0.05). CONCLUSIONS: Staphylococcus aureus was prevalent. Children with bacteremia were younger, had a higher C-reactive protein level, a lower hemoglobin level at the time of admission, and 100% presented fever.


INTRODUCCIÓN: Las infecciones osteoarticulares son una importante causa de morbilidad y pueden presentar bacteriemia. La epidemiología de estas infecciones se ha modificado en los últimos años. OBJETIVOS: Describir las características epidemiológicas, clínicas y evolutivas de los niños con infecciones osteoarticulares y comparar los pacientes con bacteriemia con los que no la presentaron. POBLACIÓN Y MÉTODOS: Cohorte retrospectiva. Se incluyeron pacientes menores de 18 años, admitidos en el Hospital Juan P. Garrahan entre el 1/1/2016 y el 31/12/2016 con sospecha de infecciones osteoarticulares en quienes se hubiese realizado artrocentesis y/o biopsia articular. Se excluyeron niños con patología previa. Se compararon las características clínicas y de laboratorio según tuvieran bacteriemia o no. Se utilizó Stata 10. RESULTADOS: N: 62. La mediana de edad fue 59.5 meses (rango intercuartilo -RIC- 24-84). Presentaron fiebre 44 pacientes (70%). Predominaron las artritis (54 pacientes, 87%). Se identificó un agente etiológico en 29 pacientes (47%). Predominó Staphylococcus aureus (n: 20, 32%). Tuvieron bacteriemia 15 de ellos (24%). Recibieron clindamicina como tratamiento empírico 56 pacientes (90%). La mediana de tratamiento endovenoso fue 7 días (RIC 5-11) y de internación, 7 días (RIC 4-12). Los pacientes con bacteriemia tuvieron menor edad (26 meses vs. 60, p < 0,05), mayor valor de proteína C reactiva inicial (101 vs. 33 U/L, p < 0,05), menor valor de hemoglobina al ingresar (10,8 g/dl vs. 12.5 g/dl, p 0,04) y mayor frecuencia de fiebre (100% vs. 57%, p < 0,05). CONCLUSIONES: Predominó Staphylococcus aureus. Los niños con bacteriemia tuvieron menor edad, mayor valor de proteína C reactiva, menos hemoglobina al ingresar y, más frecuentemente, fiebre.


Assuntos
Artrite/diagnóstico , Artrite/epidemiologia , Bacteriemia/diagnóstico , Bacteriemia/epidemiologia , Doenças Ósseas Infecciosas/diagnóstico , Doenças Ósseas Infecciosas/epidemiologia , Osteoartrite/diagnóstico , Osteoartrite/epidemiologia , Osteomielite/diagnóstico , Osteomielite/epidemiologia , Artrite/microbiologia , Bacteriemia/complicações , Doenças Ósseas Infecciosas/complicações , Criança , Pré-Escolar , Estudos de Coortes , Feminino , Hospitais Pediátricos , Humanos , Lactente , Masculino , Osteoartrite/microbiologia , Osteomielite/microbiologia , Estudos Retrospectivos , Centros de Atenção Terciária
15.
Enferm Infecc Microbiol Clin (Engl Ed) ; 36(8): 493-497, 2018 Oct.
Artigo em Inglês, Espanhol | MEDLINE | ID: mdl-29217093

RESUMO

INTRODUCTION: Community-acquired Staphylococcus aureus (SA) bacteraemia is a common cause of hospitalisation in children. The occurrence of secondary foci (SF) of SA infection is associated with higher morbidity and mortality. OBJECTIVES: To identify risk factors for SF of infection in children with community-acquired SA bacteraemia. MATERIAL AND METHODS: Prospective cohort. All children aged from 30 days to 16 years admitted to a paediatric referral hospital between January 2010 and December 2016 for community-acquired infections, with SA isolated in blood cultures, were included. Microbiological, demographic and clinical characteristics were compared, with or without SF infection after 72hours of hospitalisation. RESULTS: A total of 283 patients were included, 65% male (n=184), with a median age of 60 months (IQR: 30-132). Seventeen per cent (n=48) had at least one underlying disease and 97% (n=275) had some clinical focus of infection, the most common being: osteoarticular 55% (n=156) and soft tissue abscesses 27% (n=79). A total of 65% (n=185) were resistant to methicillin. A SF of infection was found in 16% of patients (n=44). The SF identified were pneumonia 73% (n=32), osteoarticular 11% (n=5), soft tissue 11% (n=5) and central nervous system 5% (n=2). In the multivariate analysis, the persistence of positive blood cultures after the fifth day (OR: 2.40, 95%CI: 1.07-5.37, P<0.001) and sepsis (OR: 17.23, 95%CI 5.21-56.9, P<0.001) were predictors of SF. There was no association with methicillin sensitivity. CONCLUSIONS: In this cohort, methicillin-resistant SA infections predominated. The occurrence of SF of infection was associated with the persistence of bacteraemia after the fifth day and sepsis on admission.


Assuntos
Bacteriemia/epidemiologia , Coinfecção/epidemiologia , Infecções Estafilocócicas/epidemiologia , Adolescente , Criança , Pré-Escolar , Estudos de Coortes , Infecções Comunitárias Adquiridas/epidemiologia , Feminino , Humanos , Lactente , Masculino , Fatores de Risco , Espanha/epidemiologia , Fatores de Tempo
16.
Rev. chil. infectol ; 35(3): 233-238, 2018. tab, graf
Artigo em Espanhol | LILACS | ID: biblio-959436

RESUMO

Resumen Introducción: La bacteriemia constituye una complicacion frecuente en los niños con cáncer, que se asocia a mayor gravedad, internación prolongada y mortalidad. La internación prolongada condiciona mayor morbilidad y riesgo de adquisición de infecciones intranosocomiales. Objetivo: Analizar factores de riesgo de internación prolongada en niños con leucemia y bacteriemia. Pacientes y Métodos: Cohorte retrospectiva. Se incluyeron niños con leucemia internados en el Hospital Garrahan entre 1/1/2015 y 31/12/2016 con bacteriemia. Se compararon características de pacientes con internaciones menores o mayores a 14 días. Se realizó un análisis bivariado y modelo de regresión logística. Se utilizó Stata 13. Resultados: n = 121. Mediana de edad 59 meses. Tenían leucemia linfoblastica 81 pacientes (67%) y leucemia mieloblástica 40 (33%). Tenían catéter venoso central (CVC) 96 de los niños (79%), neutropenia 94 (78%), neutropenia menor a 100 neutrófilos 79 (65%). La identificación en hemocultivos fue: 55 casos (45%) enterobacterias, 28 (23%) Staphylococcus coagulasa negativa, Streptococcus spp grupo viridans 19 (16%), Pseudomonas aeruginosa 8 (7%). Huo co-infección viral en 14 pacientes (12%).Tuvieron menos de 14 días de internación 71 pacientes (59%) y mayor período 50 (41%). En el análisis multivariado la bacteriemia asociada a CVC (OR 21,73; IC95% 1,2-43,20; p 0,04), neutropenia profunda al ingreso (OR 1,75; IC95% 1,82-1,28; p 0,03) y co-infección viral (OR 27,42; IC95% 2,88-260,83; p 0,004) fueron factores de riesgo de internación > 14 días. Conclusiones: La bacteriemia asociada a CVC, la neutropenia profunda al ingreso y la co-infección se asociaron con una internación igual o mayor a 14 días.


ABSTRACT Introduction: Bacteremia is a frequent complication in children with cancer, which is associated with greater severity, prolonged hospitalization and mortality. Prolonged hospitalization conditions greater morbidity and risk of acquisition of intranosocomial infections. Aim: To describe risk factors for prolonged hospital length of stay in children with leukemia and bacteremia. Methods: Cohort study. Episodes of bacteremia in patients with leukemia at Garrahan Hospital from 1/1/2015 to 31/12/2016 were reviewed. We compared data from patients with a LOS of 14 days or more with those admitted for less than 14 days. Bivariate and logistic regression analysis was performed. We used Stata 13 statistical package. Results: n = 121. Median age 59 months.81 patients (67%) had a diagnosis of acute lymphoblastic leukemia, followed by acute myeloid leukemia in 40 (33%). 96 patients (79%) had a central venous catheter (CVC), 94 patients (78%) were neutropenic. Blood cultures were positive for Enterobacteriaceae in 55 cases (45%), coagulase-negative staphylococci in 28 cases (23%), Group viridans Streptococcus in 19 (16%), Pseudomonas aeruginosa in 8 (7%). (9%). By the multivariate analysis, three factors remained significantly associated with length of stay of more than 14 days: CVC associated bacteremia (OR 21,73; CI95% 1.2-43.2; p 0.04), severe neutropenia (OR 1.75; CI95% 1.82-1.28; p 0.03) and coinfection (OR 27.4; CI95% 2.8-260.8; p 0.004). Conclusion: CVC associated bacteremia, severe neutropenia and viral coinfection were associated with hospital LOS of more than 14 days.


Assuntos
Humanos , Masculino , Feminino , Pré-Escolar , Criança , Leucemia Mieloide Aguda/complicações , Bacteriemia/etiologia , Leucemia-Linfoma Linfoblástico de Células Precursoras/complicações , Neutropenia/etiologia , Leucemia Mieloide Aguda/microbiologia , Estudos Retrospectivos , Fatores de Risco , Estudos de Coortes , Bacteriemia/microbiologia , Leucemia-Linfoma Linfoblástico de Células Precursoras/microbiologia , Tempo de Internação , Neutropenia/microbiologia
17.
Arch. argent. pediatr ; 114(6): 508-513, dic. 2016. tab
Artigo em Inglês, Espanhol | LILACS, BINACIS | ID: biblio-838295

RESUMO

Introducción. Las infecciones por Staphylococcus aureus meticilino resistente adquirido en la comunidad son un problema grave y frecuente en pediatría. Objetivo. Describir la resistencia a los antibióticos enlas infecciones bacteriémicas por Staphylococcus aureus (SA) de la comunidad. Comparar las características de las infecciones bacteriémicas por SA según la resistencia a la meticilina. Material y métodos. Cohorte prospectiva entre enero de 2010 y diciembre de 2014. Criterios de inclusión: niños de entre 30 días y 16 años de edad hospitalizados en el Hospital de Pediatría J. P. Garrahan por infecciones adquiridas en la comunidad, con desarrollo de SA en hemocultivos. Criterios de exclusión: antecedente de internación reciente, asistencia a un centro relacionado con los cuidados de la salud, vivir en una comunidad cerrada o catéter venoso. Se compararon características microbiológicas, demográficas y clínicas según la sensibilidad a la meticilina. Análisis estadístico: Stata10. Resultados. Se incluyeron 208 niños; varones: 141 (68%). La mediana de edad fue 60 meses (rango intercuartilo 29-130). Tenían enfermedad de base 34 pacientes (16%). En 136 niños (65%), se identificó Staphylococcus aureus meticilino resistente. La resistencia a la clindamicina fue 9%. Se encontraron diferencias estadísticas significativas en la frecuencia de enfermedad subyacente, bacteriemia persistente, sepsis al momento del ingreso, foco secundario de infección, ingreso a unidades de cuidados intensivos y necesidad de cirugía. Fallecieron 12 pacientes (6%); todos tuvieron identificación de Staphylococcus aureus meticilino resistente adquirido en la comunidad. Conclusiones. En la cohorte estudiada, predominó el Staphylococcus aureus meticilino resistente. La resistencia a la clindamicina fue del 9%. Las infecciones por Staphylococcus aureus meticilino resistente adquirido en la comunidad predominaron en niños sanos. En los pacientes con Staphylococcus aureus meticilino resistente, fue más frecuente la bacteriemia persistente, el ingreso a unidades de cuidados intensivos y la cirugía.


Introduction. Community-acquired methicillin-resistant Staphylococcus aureus infections are a common, serious problem in pediatrics.Objective. To describe antibiotic resistance in community-acquired Staphylococcus aureus (SA) bacteremias. To compare the characteristics of SA bacteremias in terms of methicillin resistance.Material and methods. Prospective cohort enrolled between January 2010 and December 2014. Inclusion criteria: infants and children between 30 days old and 16 years old hospitalized at the Hospital de Pediatría J. P. Garrahan due to community-acquired infections with SA growth identification in blood cultures. Exclusion criteria: having a history of recent hospitalization, attending a health care facility, living in a closed community, or having a venous catheter. Microbiological, demographic, and clinical characteristics were compared in terms of methicillin susceptibility. Statistical analysis: Stata10.Results. A total of 208 children were included; boys: 141 (68%). Their median age was 60 months old (interquartile range: 29-130). Thirty-four patients (16%) had an underlying disease. Methicillin-resistant Staphylococcus aureus was identified in 136 children (65%). The rate of resistance to clindamycin was 9%. Significant statistical differences were observed in the rate of underlying disease, persistent bacteremia, sepsis at the time of admission, secondary source of infection, admission to the intensive care unit, and surgery requirement. Twelve patients (6%) died; community-acquired methicillin-resistant Staphylococcus aureus was identified in all of them.Conclusions. In the studied cohort, methicillin-resistant Staphylococcus aureus was predominant. The rate of resistance to clindamycin was 9%. Community-acquired methicillin-resistant Staphylococcus aureus infections prevailed among healthy children. Among patients with methicillin-resistant Staphylococcus aureusinfections there was a higher rate of persistent bacteremia, admission to the ICU and surgery


Assuntos
Humanos , Masculino , Lactente , Pré-Escolar , Criança , Adolescente , Infecções Estafilocócicas/microbiologia , Infecções Estafilocócicas/tratamento farmacológico , Staphylococcus aureus/efeitos dos fármacos , Bacteriemia/microbiologia , Bacteriemia/tratamento farmacológico , Fatores de Tempo , Testes de Sensibilidade Microbiana , Estudos de Coortes , Infecções Comunitárias Adquiridas/microbiologia , Infecções Comunitárias Adquiridas/tratamento farmacológico , Staphylococcus aureus Resistente à Meticilina
18.
Arch Argent Pediatr ; 114(6): 508-513, 2016 Dec 01.
Artigo em Inglês, Espanhol | MEDLINE | ID: mdl-27869407

RESUMO

INTRODUCTION: Community-acquired methicillin-resistant Staphylococcus aureus infections are a common, serious problem in pediatrics. OBJETIVE: To describe antibiotic resistance in community-acquired Staphylococcus aureus (SA) bacteremias. To compare the characteristics of SA bacteremias in terms of methicillin resistance. MATERIALS AND METHODS: Prospective cohort enrolled between January 2010 and December 2014. Inclusion criteria: infants and children between 30 days old and 16 years old hospitalized at the Hospital de Pediatria J. P. Garrahan due to community-acquired infections with SA growth identification in blood cultures. Exclusion criteria: having a history of recent hospitalization, attending a health care facility, living in a closed community, or having a venous catheter. Microbiological, demographic, and clinical characteristics were compared in terms of methicillin susceptibility. Statistical analysis: Stata10. RESULTS: A total of 208 children were included; boys: 141 (68%). Their median age was 60 months old (interquartile range: 29-130). Thirty-four patients (16%) had an underlying disease. Methicillin-resistant Staphylococcus aureus was identified in 136 children (65%). The rate of resistance to clindamycin was 9%. Significant statistical differences were observed in the rate of underlying disease, persistent bacteremia, sepsis at the time of admission, secondary source of infection, admission to the intensive care unit, and surgery requirement. Twelve patients (6%) died; community-acquired methicillin-resistant Staphylococcus aureus was identified in all of them. CONCLUSIONS: In the studied cohort, methicillin-resistant S taphylococcus aureus was predominant. The rate of resistance to clindamycin was 9%. Community-acquired methicillin-resistant Staphylococcus aureus infections prevailed among healthy children. Among patients with methicillin-resistant Staphylococcus aureus infections there was a higher rate of persistent bacteremia, admission to the ICU and surgery.


INTRODUCCIÓN: Las infecciones por Staphylococcus aureus meticilino resistente adquirido en la comunidad son un problema grave y frecuente en pediatría. OBJETIVO: Describir la resistencia a los antibióticos enlas infecciones bacteriémicas por Staphylococcus aureus (SA) de la comunidad. Comparar las características de las infecciones bacteriémicas por SA según la resistencia a la meticilina. Material y métodos. Cohorte prospectiva entre enero de 2010 y diciembre de 2014. Criterios de inclusión: niños de entre 30 días y 16 años de edad hospitalizados en el Hospital de Pediatría J. P. Garrahan por infecciones adquiridas en la comunidad, con desarrollo de SA en hemocultivos. Criterios de exclusión: antecedente de internación reciente, asistencia a un centro relacionado con los cuidados de la salud, vivir en una comunidad cerrada o catéter venoso. Se compararon características microbiológicas, demográficas y clínicas según la sensibilidad a la meticilina. Análisis estadístico: Stata10. RESULTADOS: Se incluyeron 208 niños; varones: 141 (68%). La mediana de edad fue 60 meses (rango intercuartilo 29-130). Tenían enfermedad de base 34 pacientes (16%). En 136 niños (65%), se identificó Staphylococcus aureus meticilino resistente. La resistencia a la clindamicina fue 9%. Se encontraron diferencias estadísticas significativas en la frecuencia de enfermedad subyacente, bacteriemia persistente, sepsis al momento del ingreso, foco secundario de infección, ingreso a unidades de cuidados intensivos y necesidad de cirugía. Fallecieron 12 pacientes (6%); todos tuvieron identificación de Staphylococcus aureus meticilino resistente adquirido en la comunidad. CONCLUSIONES: En la cohorte estudiada, predominó el Staphylococcus aureus meticilino resistente. La resistencia a la clindamicina fue del 9%. Las infecciones por Staphylococcus aureus meticilino resistente adquirido en la comunidad predominaron en niños sanos. En los pacientes con Staphylococcus aureus meticilino resistente, fue más frecuente la bacteriemia persistente, el ingreso a unidades de cuidados intensivos y la cirugía.


Assuntos
Bacteriemia/tratamento farmacológico , Bacteriemia/microbiologia , Infecções Estafilocócicas/tratamento farmacológico , Infecções Estafilocócicas/microbiologia , Staphylococcus aureus/efeitos dos fármacos , Criança , Pré-Escolar , Estudos de Coortes , Infecções Comunitárias Adquiridas/tratamento farmacológico , Infecções Comunitárias Adquiridas/microbiologia , Feminino , Humanos , Masculino , Staphylococcus aureus Resistente à Meticilina , Testes de Sensibilidade Microbiana , Fatores de Tempo
19.
Arch. argent. pediatr ; 114(4): e237-e240, ago. 2016. ilus
Artigo em Espanhol | LILACS, BINACIS | ID: biblio-838248

RESUMO

Staphylococcus aureus es uno de los principales agentes etiológicos de infecciones en niños provenientes de la comunidad y del ámbito hospitalario. La gravedad de estos cuadros se asocia a factores de virulencia, entre los que se encuentra la leucocidina de Panton-Valentine. Tanto Staphylococcus aureus resistente como sensible a la meticilina producen esta leucocidina, aunque con frecuencia variable. Presentamos a dos niños con infección grave por Staphylococcus aureus sensible a la meticilina productor de leucocidina de Panton-Valentine con complicaciones osteoarticulares y endovasculares. Es fundamental la sospecha diagnóstica, el tratamiento antibiótico adecuado y el manejo quirúrgico precoz para mejorar el abordaje de estas infecciones. Se debe mantener la vigilancia epidemiológica para detectar la frecuencia de las infecciones causadas por estas bacterias.


Staphylococcus aureus is a major etiologic agent of infections in children from the community and the hospital setting. The severity of these conditions is associated with virulence factors, including the Panton-Valentine leukocidin. Both methicillin resistant and sensitive Staphylococcus aureus produce this leukocidin although with varying frequency. We present two children with severe infection by sensitive Staphylococcus aureus producer of Panton-Valentine leukocidin with musculoskeletal and endovascular complications. It is essential the suspected diagnosis, appropriate antibiotic treatment and early surgical management to improve the approach of these infections. Epidemiological surveillance should be mantained to detect the frequency of infections caused by these bacteria.


Assuntos
Humanos , Masculino , Feminino , Criança , Infecções Estafilocócicas/diagnóstico , Infecções Estafilocócicas/microbiologia , Infecções Estafilocócicas/terapia , Staphylococcus aureus/efeitos dos fármacos , Staphylococcus aureus/metabolismo , Toxinas Bacterianas/biossíntese , Exotoxinas/biossíntese , Leucocidinas/biossíntese , Meticilina/farmacologia , Antibacterianos/farmacologia , Índice de Gravidade de Doença , Testes de Sensibilidade Microbiana
20.
Arch Argent Pediatr ; 114(4)2016 Aug 01.
Artigo em Espanhol | MEDLINE | ID: mdl-27399020

RESUMO

Staphylococcus aureus is a major etiologic agent of infections in children from the community and the hospital setting. The severity of these conditions is associated with virulence factors, including the Panton-Valentine leukocidin. Both methicillin resistant and sensitive Staphylococcus aureus produce this leukocidin although with varying frequency. We present two children with severe infection by sensitive Staphylococcus aureus producer of Panton-Valentine leukocidin with musculoskeletal and endovascular complications. It is essential the suspected diagnosis, appropriate antibiotic treatment and early surgical management to improve the approach of these infections. Epidemiological surveillance should be mantained to detect the frequency of infections caused by these bacteria.


Staphylococcus aureus es uno de los principales agentes etiológicos de infecciones en niños provenientes de la comunidad y del ámbito hospitalario. La gravedad de estos cuadros se asocia a factores de virulencia, entre los que se encuentra la leucocidina de Panton-Valentine. Tanto Staphylococcus aureus resistente como sensible a la meticilina producen esta leucocidina, aunque con frecuencia variable. Presentamos a dos niños con infección grave por Staphylococcus aureus sensible a la meticilina productor de leucocidina de Panton-Valentine con complicaciones osteoarticulares y endovasculares. Es fundamental la sospecha diagnóstica, el tratamiento antibiótico adecuado y el manejo quirúrgico precoz para mejorar el abordaje de estas infecciones. Se debe mantener la vigilancia epidemiológica para detectar la frecuencia de las infecciones causadas por estas bacterias.


Assuntos
Antibacterianos/farmacologia , Toxinas Bacterianas/biossíntese , Exotoxinas/biossíntese , Leucocidinas/biossíntese , Meticilina/farmacologia , Infecções Estafilocócicas , Staphylococcus aureus/efeitos dos fármacos , Staphylococcus aureus/metabolismo , Criança , Feminino , Humanos , Masculino , Testes de Sensibilidade Microbiana , Índice de Gravidade de Doença , Infecções Estafilocócicas/diagnóstico , Infecções Estafilocócicas/microbiologia , Infecções Estafilocócicas/terapia
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