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RESUMO Objetivos: avaliar a prevalência de colonização e infecção por bactéria multirresistente em pacientes em transplante renal, identificar a taxa de infecção, morbimortalidade e os fatores de risco associados. Métodos: coorte prospectivo de 200 transplantados renais incluídos aleatoriamente. Realizou-se vigilância epidemiológica dos microrganismos em estudo nas primeiras 24 horas e 7 dias pós-transplante. Resultados: noventa (45%) pacientes foram considerados colonizados. Identificaram-se como fatores de risco: sexo feminino, hipertensão arterial e diabetes (p<0,005), tempo de diálise (p<0,004), tempo de internação pós-transplante, função renal retardada, tempo de internação. Os microrganismos foram isolados das infecções em sítio cirúrgico, corrente sanguínea e trato urinário. Conclusões: a colonização por microrganismos resistentes nos pacientes transplantados renais foi frequente e os fatores de riscos associados à infecção foram identificados. Os resultados devem direcionar a equipe assistencial, a fim de minimizar a morbimortalidade relacionada às causas infecciosas nesta população.

ABSTRACT Objectives: to assess the prevalence of colonization and infection by multidrug-resistant bacteria in patients undergoing kidney transplantation and identify the rate of infection, morbidity and mortality and associated risk factors. Methods: a prospective cohort of 200 randomly included kidney transplant recipients. Epidemiological surveillance of the studied microorganisms was carried out in the first 24 hours and 7 days after transplantation. Results: ninety (45%) patients were considered colonized. Female sex, hypertension and diabetes (p<0.005), dialysis time (p<0.004), length of stay after transplantation, delayed renal function, and length of stay were identified as risk factors. The microorganisms were isolated from surgical site, bloodstream and urinary tract infections. Conclusions: colonization by resistant microorganisms in kidney transplant patients was frequent and risk factors associated with infection were identified. The results should guide the care team in order to minimize morbidity and mortality related to infectious causes in this population.

RESUMEN Objetivos: evaluar la prevalencia de colonización e infección por bacterias multirresistentes en pacientes sometidos a trasplante renal, identificar la tasa de infección, morbimortalidad y factores de riesgo asociados. Métodos: cohorte prospectiva de 200 receptores de trasplante renal incluidos aleatoriamente. La vigilancia epidemiológica de los microorganismos estudiados se realizó en las primeras 24 horas y 7 días posteriores al trasplante. Resultados: noventa (45%) pacientes fueron considerados colonizados. Se identificaron como factores de riesgo: sexo femenino, hipertensión y diabetes (p<0,005), tiempo en diálisis (p<0,004), tiempo de estancia después del trasplante, función renal retrasada, tiempo de estancia. Los microorganismos se aislaron de infecciones del sitio quirúrgico, del torrente sanguíneo y del tracto urinario. Conclusiones: la colonización por microorganismos resistentes en pacientes con trasplante renal fue frecuente y se identificaron factores de riesgo asociados a infección. Los resultados deben orientar al equipo asistencial para minimizar la morbimortalidad relacionada con causas infecciosas en esta población.

https://doi.org/10.1590/0034-7167-2021-0219 282 downloads

Capsular genotype distribution of Group B Streptococcus colonization among at-risk pregnant women in Sao Paulo, Brazil.
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Kfouri, Renato de Ávila

; Pignatari, Antônio Carlos Campos

; Kusano, Elisa Junko Ura

; Rocchetti, Talita Trevizani

; Fonseca, Clara Lopes

; Weckx, Lily Yin

Brazilian Journal of Infectious Diseases

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2021, Volume 25 N. 3 elocation 101586

Abstract: En | Text: En | PDF: En

ABSTRACT Background: Vaccines in development against Group B Streptococcus (GBS) should contain the most prevalent capsular genotypes screened in the target population. In low- and middle-income countries epidemiological data on GBS carriage among pregnant women, a prerequisite condition for GBS neonatal sepsis, is needed to inform vaccine strategies. Objective: To investigate the prevalence of different GBS capsular genotypes that colonizes at-risk pregnant women in a private maternity hospital in São Paulo, Brazil. Methods: GBS strains isolated in routine maternity procedures from at-risk pregnant women from 2014 to 2018 were confirmed by mass spectrometry (MALDI-TOF) with subsequent DNA extraction for identification of capsular genotype through polymerase chain reaction (PCR). Demographic and gestational data were analyzed. Results: A total of 820 Todd-Hewitt broths positive for GBS were selected for streptococcal growth. Recovery and confirmation of GBS by MALDI-TOF were possible in 352. Strains were processed for determination of capsular genotype by PCR. From the total of 352 GBS isolates, 125 strains (35.5%) were genotyped as Ia; 23 (6.5%) as Ib; 41 (11.6%) as II; 36 (10.2%) as III; 4 (1.1%) as IV; 120 (34.1%) as V and 1 strain (0.3%) as VIII. Two isolates (0.7%) were not genotyped by used methodology. No statistically significant correlation between gestational risk factors, demographic data and distribution of capsular genotypes were found. Conclusions: GBS capsular genotypes Ia, Ib, II, III, and V were the most prevalent isolates colonizing at risk pregnant women in the present study. The inclusion of capsular genotypes Ia and V in the composition of future vaccines would cover 69.6% of capsular genotypes in the studied population. No statistically significant differences were observed between capsular genotype and gestational and demographic data and risk factors.

https://doi.org/10.1016/j.bjid.2021.101586 42 downloads

Invasive pneumococcal disease in children with cancer: Incidence density, risk factors and isolated serotypes
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Lages, Pedro Mendes

; Carlesse, Fabianne

; Boettger, Bruno Cruz

; Pignatari, Antônio Carlos Campos

; Petrilli, Antônio Sérgio

; Moraes-Pinto, Maria Isabel de

Brazilian Journal of Infectious Diseases

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dec 2020, Volume 24 N. 6 Pages 489 - 496

Abstract: En | Text: En | PDF: En

ABSTRACT Background: Pediatric oncology patients (POP) have a high risk of infections due to impaired immunity. Invasive pneumococcal disease (IPD) is an important cause of severe infection in these patients and it is associated with high mortality. This study aimed to evaluate the incidence and risk factors associated with IPD at a Pediatric Oncology Center in Brazil. Methods: This was a retrospective case-control study. All IPD cases in children with cancer from 2005 through 2016 were reviewed. Each case of IPD was matched with two controls from a cohort of patients matched for year of IPD, age and disease in order to assess risk factors. The incidence density was calculated as the number of IPD per 100,000 patients-year. Results: A total of 51 episodes of IPD in 49 patients was identified. All pneumococci were isolated from blood cultures. The median age was five years and 67% were male; mortality rate was 7.8%. The IPD incidence density rate in POP was 311.21 per 100,000 patients-year, significantly higher than the rate in the general pediatric population. Severe neutropenia was the only risk factor associated with IPD, after multivariate conditional logistic regression analysis. Conclusion: Although pneumococcal disease decreased after the introduction of 10-valent pneumococcal vaccine in the Brazilian national immunization schedule in 2010, there was no decrease in the IPD incidence rate in our cohort. A higher coverage rate of pneumococcal vaccination in children in the general population might be necessary to reduce the incidence rate in this high-risk population.

https://doi.org/10.1016/j.bjid.2020.09.003 296 downloads

Case report of a child with influenza and fatal community-associated methicillin-resistant Staphylococcus aureus sepsis
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Boettger, Bruno Cruz

; Rezende, Thais Freitas Teles

; Teixeira, Nathalia Bibiana

; Pignatari, Antonio Carlos Campos

; Kiffer, Carlos Roberto Veiga

Revista da Sociedade Brasileira de Medicina Tropical

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2020, Volume 53 elocation e20200050

Abstract: En | Text: En | PDF: En

Abstract In the present study, we report the incidence of septic shock syndrome associated with methicillin-resistant Staphylococcus aureus in a child who initially presented influenza-like illness and developed septic shock shortly after 48 h of hospitalization, and eventually died within a few hours of the onset of sepsis. S. aureus isolated from the blood culture was characterized as the community-associated strain carrying the staphylococcal cassette chromosome mec (SCCmec) type IV element. Therefore, it is important to better understand the community-associated methicillin-resistant Staphylococcus aureus (CA-MRSA) infections and their potential association with influenza for early diagnosis and successful treatment of this fatal disease.

https://doi.org/10.1590/0037-8682-0050-2020 515 downloads

Direct matrix-assisted laser desorption ionization time-of-flight mass spectrometry and real-time PCR in a combined protocol for diagnosis of bloodstream infections: a turnaround time approach
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Quiles, Milene Gonçalves

; Boettger, Bruno Cruz

; Inoue, Fernanda Matsiko

; Monteiro, Jussimara

; Santos, Daniel Wagner

; Ponzio, Vinicius

; Carlesse, Fabianne

; Cappellano, Paola

; Carvalhaes, Cecilia Godoy

; Pignatari, Antonio Carlos Campos

Brazilian Journal of Infectious Diseases

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jun 2019, Volume 23 N. 3 Pages 164 - 172

Abstract: En | Text: En | PDF: En

ABSTRACT Bloodstream infections (BSIs) are serious infections associated with high rates of morbidity and mortality. Every hour delay in initiation of an effective antibiotic increases mortality due to sepsis by 7%. Turnaround time (TAT) for conventional blood cultures takes 48 h, forcing physicians to streamline therapy by exposing patients to broad-spectrum antimicrobials. Our objective was (1) to evaluate the accuracy and TAT of an optimized workflow combining direct matrix-assisted laser desorption ionization time-of-flight mass spectrometry (MALDI-TOF MS) and in-house real-time polymerase chain reaction (PCR) for bacterial identification and antimicrobial resistance profiling directly from positive blood bottles for diagnosing bloodstream infections and (2) to verify the effect of reporting results to medical staff. A total of 103 BSI episodes from 91 patients admitted to three hospitals in São Paulo, Brazil were included. TAT from molecular versus conventional methods was measured and compared. Our protocol showed an overall agreement of 93.5% for genus and 78.5% for species identification; 74.2% for methicillin resistance detection, 89.2% for extended-spectrum β-lactamase profiling, 77.8% for metallo-β-lactamase profiling, and 100% for carbapenemase profile and vancomycin-resistance detection when compared with conventional testing. TAT of molecular sample processing according to our protocol was 38 h shorter than conventional methods. Antimicrobial interventions were possible in 27 BSI episodes. Antimicrobial discontinuation was achieved in 12 BSI episodes while escalation of therapy occurred in 15 episodes. Antimicrobial therapy was inadequate in three (12%) BSI episodes diagnosed using results of molecular testing. Our in-house rapid protocol for identifying both bacteria and antimicrobial resistance provided rapid and accurate results, having good agreement with conventional testing results. These results could contribute to faster antimicrobial therapy interventions in BSI episodes.

https://doi.org/10.1016/j.bjid.2019.05.005 402 downloads

Infection related to Klebsiella pneumoniae producing carbapenemase in renal transplant patients
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Taminato, Monica

; Fram, Dayana

; Pereira, Rogério Rodrigues Floriano

; Sesso, Ricardo

; Belasco, Angélica Gonçalves Silva

; Pignatari, Antonio Carlos

; Barbosa, Dulce Aparecida

Revista Brasileira de Enfermagem

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jun 2019, Volume 72 N. 3 Pages 760 - 766

Abstract: En Es | Text: En Es | PDF: En | PDF: Es

ABSTRACT Objective: To evaluate the risk factors related to Klebsiella pneumoniae carbapenemase infection after renal transplantation. Methods: This was a retrospective epidemiological (case-control) study, conducted from October 2011 to march 2016. Transplanted patients with infection by this bacteria during hospitalization were selected as cases. The controls were paired by age, sex, type of donor and transplant time. The proportion of cases and controls was 1:2. Results: Thirty hundred and five patients were included in the study (45 cases and 90 controls). The risk factors found for infection by KPC were: time of hospitalization after the transplant (OR: 4.82; CI95% 2.46-9.44), delayed kidney function (OR: 5.60; CI95% 1.91-11.01) and previous infectious for another microorganism ( OR: 34.13 CI95% 3.52-132.00). Conclusion: The risk of acquisition of this bacterium was directly related to invasive procedures and exposure to the hospital environment. The findings reinforce the importance of prevention measures and control of infection by this microorganism.

RESUMEN Objetivo: Evaluar los factores de riesgo relacionados con la infección por Klebsiella pneumoniae carbapenemasa después del trasplante renal. Método: Estudio retrospectivo epidemiológico (caso-control), realizado de octubre de 2011 a marzo de 2016. Pacientes transplantados con infección por esa bacteria durante la internación fueron seleccionados como casos. Los controles se parearon por edad, sexo, tipo de donante y tiempo de trasplante. La proporción de casos y controles fue de 1: 2. Resultados: Treinta y cinco pacientes fueron incluidos en el estudio (45 casos y 90 controles). Los factores de riesgo para la infección encontrados por KPC fueron: tiempo de hospitalización después del trasplante (OR: 4,82, IC95% 2,46-9,44), función renal retardada (OR: 5,60, IC95% 1, 91-11,01) y anterior infecciosa para otro microorganismo (OR: 34,13 IC95% 3,52-132,00). Conclusión: El riesgo de adquisición de esta bacteria estuvo directamente relacionado a procedimientos invasivos y exposición al ambiente hospitalario. Los hallazgos refuerzan la importancia de medidas de prevención y control de la infección por ese microorganismo.

https://doi.org/10.1590/0034-7167-2019-0009 1556 downloads

Infection related to Klebsiella pneumoniae producing carbapenemase in renal transplant patients
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Taminato, Monica

; Fram, Dayana

; Pereira, Rogério Rodrigues Floriano

; Sesso, Ricardo

; Belasco, Angélica Gonçalves Silva

; Pignatari, Antonio Carlos

; Barbosa, Dulce Aparecida

Revista Brasileira de Enfermagem

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jun 2019, Volume 72 N. 3 Pages 760 - 766

Abstract: En Es | Text: En Es | PDF: En | PDF: Es

https://doi.org/10.1590/0034-7167-2019-0009 18 downloads

Temporal evolution of antimicrobial resistance among Neisseria gonorrhoeae clinical isolates in the most populated South American Metropolitan Region
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Martins, Rafael Affini

; Cassu-Corsi, Dandara

; Nodari, Carolina Silva

; Cayô, Rodrigo

; Natsumeda, Larissa

; Streling, Ana Paula

; Doi, André Mario

; da Silva, Roberto José Carvalho

; Bocalon, Roberta Alessandra Lima

; Gales, Ana Cristina

; Pignatari, Antonio Carlos Campos

Memórias do Instituto Oswaldo Cruz

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2019, Volume 114 elocation e190079

Abstract: En | Text: En | PDF: En

A total of 124 Neisseria gonorrhoeae isolates recovered during a 12-year period (2003-2015) from outpatients assisted at Centro de Referência e Treinamento DST/AIDS-CRT of São Paulo city, Brazil, were analysed. The following resistance rates were observed: penicillin-59.6%, ciprofloxacin-15.3%, and azithromycin-6.7%. Although reduced susceptibility to these drugs was observed since 2003, no ceftriaxone-resistant isolates were detected. Ciprofloxacin- and azithromycin non-susceptible isolates were grouped in 11 clusters. Mutations were detected in GyrA and ParC of isolates 124 and 260, and a C2611T substitution on 23S rRNA alleles was also observed in isolate 260. Both isolates belonged to ST1901/ST6210 (MSLT/NG-MAST schemes).

https://doi.org/10.1590/0074-02760190079 734 downloads

10.

Anatomical terminology of the internal nose and paranasal sinuses: cross-cultural adaptation to Portuguese
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Bezerra, Thiago Freire Pinto

; Stamm, Aldo

; Anselmo-Lima, Wilma Teresinha

; Fornazieri, Marco Aurélio

; Melo, Nelson D’Ávila

; Balsalobre, Leonardo

; Jotz, Geraldo Pereira

; Leão, Henrique Zaquia

; Nunes, André Alencar Araripe

; Felippu, Alexandre

; Cedin, Antonio Carlos

; Pinheiro-Neto, Carlos D.

; Oliveira, Diego Lima

; Sakano, Eulalia

; Kosugi, Eduardo Macoto

; Araújo, Elizabeth

; Valera, Fabiana Cardoso Pereira

; Pinna, Fábio de Rezende

; Romano, Fabrizio Ricci

; Pádua, Francine Grecco de Melo

; Ramos, Henrique Faria

; Telles Jr., João

; Sá, Leonardo Conrado Barbosa de

; D'Assunção Filho, Leopoldo Marques

; Sennes, Luiz Ubirajara

; Gregório, Luis Carlos

; Sampaio, Marcelo H.

; Santos, Marco César Jorge dos

; Franca, Marco

; Mocellin, Marcos

; Lessa, Marcus Miranda

; Avelino, Melissa Ameloti G.

; Tepedino, Miguel

; Andrade, Nilvano Alves de

; Piltcher, Otavio B.

; Roithmann, Renato

; Pilan, Renata Mendonça

; Meireles, Roberto Campos

; Guimarães, Roberto Eustáquio

; Santos, Rodrigo de Paula

; Pezato, Rogério

; Pignatari, Shirley

; Abdo, Tatiana Telles

; Nakajima, Victor

; Almeida, Washington

; Nakanishi, Marcio

; Voegels, Richard L.

Brazilian Journal of Otorhinolaryngology

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dec 2018, Volume 84 N. 6 Pages 677 - 686

Abstract: Pt En | Text: Pt En | PDF: Pt | PDF: En

Resumo: Introdução: A cirurgia endoscópica funcional endonasal é um procedimento cirúrgico frequente entre os otorrinolaringologistas. Em 2014, a Sociedade Europeia de Rinologia publicou o "Documento Europeu para Posicionamento sobre a Terminologia Anatômica Interna do Nariz e das Cavidades Paranasais" com o objetivo de unificar os termos na língua inglesa. Ainda não dispomos de uma terminologia unificada na língua portuguesa. Objetivo: Adaptação transcultural dos termos anatômicos do nariz e das cavidades paranasais para o português da "European Anatomical Terminology of the Internal Nose and Paranasal Sinuses". Método: Um grupo de rinologistas de todo o Brasil, com experiência em cirurgia endoscópica endonasal, foi convidado a participar da elaboração desse posicionamento sobre os termos anatômicos do nariz e das cavidades paranasais para o português conforme metodologia adaptada da previamente descrita por Rudmik e Smith. Resultados: Os resultados desse documento foram gerados a partir da concordância da maioria dos participantes conforme as sugestões mais populares entre os rinologistas. Uma adaptação transcultural da terminologia anatômica nasossinusal foi consolidada. Sugerimos que se busque uniformizar termos como "concha inferior", "septo nasal", "porção (óssea/cartilaginosa) do septo nasal", "meato (médio/ inferior) nasal", "via da drenagem do seio frontal", "recesso frontal" e "processo uncinado". Conclusão: Consolidamos uma versão adaptada em português da "European Anatomical Terminology of the Internal Nose and Paranasal Sinuses" que auxiliará a publicação de comunicados técnicos, publicações científicas e o ensino dos termos anatômicos internos do nariz e das cavidades paranasais no Brasil.

Abstract Introduction: Functional endonasal endoscopic surgery is a frequent surgical procedure among otorhinolaryngologists. In 2014, the European Society of Rhinology published the "European Position Paper on the Anatomical Terminology of the Internal Nose and Paranasal Sinuses", aiming to unify the terms in the English language. We do not yet have a unified terminology in the Portuguese language. Objective: Transcultural adaptation of the anatomical terms of the nose and paranasal cavities of the "European Anatomical Terminology of the Internal Nose and Paranasal Sinuses" to Portuguese. Methods: A group of rhinologists from diverse parts of Brazil, all experienced in endoscopic endonasal surgery, was invited to participate in the creation of this position paper on the anatomical terms of the nose and paranasal sinuses in the Portuguese language according to the methodology adapted from that previously described by Rudmik and Smith. Results: The results of this document were generated based on the agreement of the majority of the participants according to the most popular suggestions among the rhinologists. A cross-cultural adaptation of the sinonasal anatomical terminology was consolidated. We suggest the terms "inferior turbinate", "nasal septum", "(bone/cartilaginous) part of the nasal septum", "(middle/inferior) nasal meatus", "frontal sinus drainage pathway", "frontal recess" and "uncinate process" be standardized. Conclusion: We have consolidated a Portuguese version of the European Anatomical Terminology of the Internal Nose and Paranasal Sinuses, which will help in the publication of technical announcements, scientific publications and the teaching of the internal anatomical terms of the nose and paranasal sinuses in Brazil.

https://doi.org/10.1016/j.bjorl.2018.08.003 1085 downloads

11.

Fecal microbiota analysis of children with small intestinal bacterial overgrowth among residents of an urban slum in Brazil
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Mello, Carolina Santos

; Rodrigues, Mirian Silva do Carmo

; Araújo Filho, Humberto Bezerra de

; Melli, Lígia Cristina Fonseca Lahoz

; Tahan, Soraia

; Pignatari, Antônio Carlos Campos

; Morais, Mauro Batista de

Jornal de Pediatria

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oct 2018, Volume 94 N. 5 Pages 483 - 490

Abstract: Pt En | Text: Pt En | PDF: Pt | PDF: En

Resumo Objetivo: Analisar a composição da microbiota fecal de crianças moradoras de uma favela urbana no Brasil, com e sem sobrecrescimento bacteriano no intestino delgado, e investigar a ocorrência de déficit de crescimento e anemia. Métodos: Foram estudadas 100 crianças, com idade entre 5 e 11 anos, na cidade de Osasco, São Paulo. Sobrecrescimento bacteriano no intestino delgado foi pesquisado por teste respiratório do hidrogênio e metano no ar expirado com lactulose. Foram mensurados peso, estatura e calculados os índices antropométricos estatura para idade e índice de massa corporal para idade. Foi investigada a ocorrência de anemia, pela avaliação da hemoglobina capilar. A análise dos filos, gêneros e espécies bacterianas em amostras de fezes foi realizada por polymerase chain reaction em tempo real. Resultados: Sobrecrescimento bacteriano no intestino delgado foi diagnosticado em 61,0% das crianças avaliadas. Foi verificada menor média do escore Z do índice estatura para idade (-0,48±0,90 vs.-0,11±0,97 DP) e de hemoglobina capilar (12,61±1,03 vs. 13,44±1,19 g/dL) no grupo de crianças com sobrecrescimento bacteriano no intestino delgado, quando comparadas àquelas sem sobrecrescimento bacteriano no intestino delgado (p < 0,05). Nas crianças com sobrecrescimento bacteriano no intestino delgado foi observada maior frequência de Salmonella spp., quando comparadas àquelas sem sobrecrescimento bacteriano no intestino delgado (37,7% vs. 10,3%; p = 0,002). Maior contagem de Eubactérias totais (p = 0,014) e Firmicutes (p = 0,038) foi observada nas crianças sem sobrecrescimento bacteriano no intestino delgado, enquanto que as crianças com sobrecrescimento bacteriano no intestino delgado apresentaram maior contagem de Salmonella (p = 0,002). Conclusão: Nas crianças com diagnóstico de sobrecrescimento bacteriano no intestino delgado verificaram-se menores valores de estatura para idade e de hemoglobina. Foram constatadas diferenças na microbiota fecal das crianças com sobrecrescimento bacteriano no intestino delgado, especificamente, maior frequência e contagem de Salmonella spp. e menores contagens de Firmicutes e Eubactérias totais.

Abstract Objective: To analyze the fecal microbiota composition of children living in an urban slum in Brazil, with or without small intestinal bacterial overgrowth, and to investigate the occurrence of stunting and anemia. Methods: A total of 100 children were studied, aged 5-11 years, from the municipality of Osasco, São Paulo. Small intestinal bacterial overgrowth was screened through hydrogen and methane breath test with lactulose. Weight and height were measured, and the height-for-age and body mass-for-age anthropometric indexes were calculated. The occurrence of anemia was investigated by capillary hemoglobin. Analysis of bacterial phylum, genus, and species was performed by real-time polymerase chain reaction in fecal samples. Results: Small intestinal bacterial overgrowth was identified in 61.0% of the children. A lower mean of height-for-age Z-score ([−0.48 ± 0.90] vs. [−0.11 ± 0.97]; p = 0.027), as well as capillary hemoglobin ([12.61 ± 1.03 g/dL] vs. [13.44 ± 1.19 g/dL]; p < 0.001) was demonstrated in children with SIBO when compared with children without small intestinal bacterial overgrowth. Children with small intestinal bacterial overgrowth presented a higher frequency of Salmonella spp., when compared to those without small intestinal bacterial overgrowth (37.7% vs. 10.3%; p = 0.002). Higher counts of total Eubacteria (p = 0.014) and Firmicutes (p = 0.038) were observed in children without small intestinal bacterial overgrowth; however, a higher count of Salmonella (p = 0.002) was found in children with small intestinal bacterial overgrowth. Conclusion: Children who lived in a slum and were diagnosed with small intestinal bacterial overgrowth showed lower H/A Z-scores and hemoglobin levels. Furthermore, differences were observed in the fecal microbiota of children with small intestinal bacterial overgrowth, when compared to those without it; specifically, a higher frequency and count of Salmonella, and lower counts of Firmicutes and total Eubacteria.

https://doi.org/10.1016/j.jped.2017.09.003 2096 downloads

12.

Tailoring antimicrobials in febrile neutropenia: using faster diagnostic and communication tools to improve treatment in the era of extensively resistant pathogens
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Souza, Ingvar Ludwig Augusto de

; Quiles, Milene Gonçalves

; Boettger, Bruno Cruz

; Pignatari, Antonio Carlos Campos

; Cappellano, Paola

Brazilian Journal of Infectious Diseases

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jun 2018, Volume 22 N. 3 Pages 239 - 242

Abstract: En | Text: En | PDF: En

ABSTRACT Febrile Neutropenia represents a medical emergency and the use of appropriate antimicrobial therapy is essential for a better outcome. Although being time-consuming, conventional cultures and antimicrobial susceptibility tests remain the golden standard practices for microbiology identification. Final reports are typically available within several days. Faster diagnostic tools, such as species identification trough Matrix Assisted Laser Desorption Ionization-Time of Flight (MALDI-TOF) and molecular techniques might help to shorten time to diagnostic and also guide definitive therapy in this scenario. Here we present a case in which the use of a diagnostic molecular workflow combining MALDI-TOF and real-time PCR for relevant genes codifying antibiotic resistant integrated with instant communication report, led to a tailored and more appropriate treatment in a patient presenting with febrile neutropenia.

https://doi.org/10.1016/j.bjid.2018.05.009 417 downloads

13.

High mortality outbreak of carbapenem-resistant Pseudomonas aeruginosa infection in a Brazilian pediatric oncology hospital
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Quiles, Milene Gonçalves

; Carlesse, Fabianne

; Silva, Maria Aparecida Aguiar da

; Mingrone, Roberta Cabral

; Fonseca, Juliane Melo

; Silva, Dafne Cardoso

; Pignatari, Antonio Carlos Campos

Brazilian Journal of Infectious Diseases

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mar 2017, Volume 21 N. 2 Pages 205 - 206

Abstract: En | Text: En | PDF: En

https://doi.org/10.1016/j.bjid.2016.10.012 826 downloads

14.

The inappropriate use of antibiotics in upper respiratory tract infections: it is time for action
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Pignatari, Antonio Carlos Campos

; Myake, Monica Menon

Brazilian Journal of Otorhinolaryngology

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apr 2016, Volume 82 N. 2 Pages 121 - 122

Abstract: Pt En | Text: Pt En | PDF: Pt | PDF: En

https://doi.org/10.1016/j.bjorl.2015.12.003 1418 downloads

15.

Co-transmission of Rahnella aquatilis between hospitalized patients
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Martins, Willames

; Carvalhaes, Cecília Godoy

; Cayô, Rodrigo

; Gales, Ana Cristina

; Pignatari, Antonio Carlos

Brazilian Journal of Infectious Diseases

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dec 2015, Volume 19 N. 6 Pages 648 - 650

Abstract: En | Text: En | PDF: En

ABSTRACT Rahnella aquatilis is an environmental Gram-negative bacillus that is rarely reported as human pathogen, being mainly associated with infections in immunocompromised patients. Herein we describe two cases ofR. aquatilis isolates recovered from endotracheal aspirate cultures of different patients in a tertiary hospital located in the city of São Paulo, Brazil. Matrix-assisted laser desorption/ionization time-of-flight mass spectrometry and 16S rDNA gene sequencing were performed to confirm bacterial identification after the isolates being erroneously identified as Pantoea spp. by automated system. Both isolates showed the same PFGE pattern and presented the ß-lactamase encoding geneblaRAHN-1, responsible for resistance to cephalothin. The isolates were susceptible to broad-spectrum cephalosporins, carbapenems, fluoroquinolones, aminoglycosides, and polymyxin B. This report shows the presence and transmission of uncommon bacteria in the nosocomial environment and alerts us about the need for new tools of correct microbiologic diagnosis.

https://doi.org/10.1016/j.bjid.2015.07.009 922 downloads

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