2021
DOI: 10.1055/s-0041-1735170
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Detecção de Cutibacterium acnes em amostras de tecidos de cirurgias limpas primárias do ombro – Parte I

Abstract: Resumo Objetivo Identificar agentes bacterianos em amostras de cirurgias do ombro de pacientes sem histórico de infecção e de cirurgias prévias no ombro. Métodos Amostras de tendão, bursa e osso foram coletadas no intraoperatório, armazenadas em frascos estéreis a seco e enviadas para análise de crescimento de cultura em meios para agentes aeróbios e anaeróbios no laboratório credenciado ao hospital. Foram analisados os resultados de 141 amostras de 47 ombros. Resultados Obtivemos… Show more

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(6 citation statements)
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“…In a previous study of our group, it was evidenced that the culture medium used for anaerobic microorganisms in the collection and transport containers, as well as in the prolonged incubation time of samples, are determining factors for the identification of this bacterium in primary shoulder surgeries without history of infection. 7 Using sterile vials for dry transport, with transport carried out by outsourced laboratories to the hospital and with incubation time of up to 7 days, we obtained only one positive sample for coagulase-negative Staphylococci among the 47 shoulders studied, 7 constituting a result below that found in the literature. 4 12 13 We understand, therefore, that the use of a methodology involving: the storage and transport of samples in saline and thioglycolate (means of transport and culture for anaerobic agents), the rapid transport from the operating room to the laboratory, the incubation time of more than 14 days, and the identification of the agents with greater sensitivity and specificity by MALDI-TOF MS, were essential factors for the correct analysis of the shoulder's microbiota in the present study.…”
Section: Discussionmentioning
confidence: 76%
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“…In a previous study of our group, it was evidenced that the culture medium used for anaerobic microorganisms in the collection and transport containers, as well as in the prolonged incubation time of samples, are determining factors for the identification of this bacterium in primary shoulder surgeries without history of infection. 7 Using sterile vials for dry transport, with transport carried out by outsourced laboratories to the hospital and with incubation time of up to 7 days, we obtained only one positive sample for coagulase-negative Staphylococci among the 47 shoulders studied, 7 constituting a result below that found in the literature. 4 12 13 We understand, therefore, that the use of a methodology involving: the storage and transport of samples in saline and thioglycolate (means of transport and culture for anaerobic agents), the rapid transport from the operating room to the laboratory, the incubation time of more than 14 days, and the identification of the agents with greater sensitivity and specificity by MALDI-TOF MS, were essential factors for the correct analysis of the shoulder's microbiota in the present study.…”
Section: Discussionmentioning
confidence: 76%
“…6 Em um estudo prévio publicado pelo mesmo grupo, foi evidenciado que amostras de tecido coletadas e transportadas em frasco seco e incubadas por até 7 dias apresentaram uma taxa de 99,2% de resultados negativos para a identificação de qualquer microrganismo, alertando para a baixa eficácia diagnóstica dos padrões de investigação laboratorial em nosso país. 7 Novas técnicas de investigação bacteriológica laboratorial estão em desenvolvimento para melhorar o diagnóstico, destacando-se o sequenciamento genético e a espectrometria de massa. 5,8,9 O objetivo deste estudo é identificar a presença de C. acnes e outros agentes bacterianos em amostras de tecidos profundos de ombro em pacientes que não foram submetidos a nenhum procedimento invasivo prévio nessa articulação e que não possuíssem antecedentes clínicos de infecção (cirurgias limpas).…”
Section: Introductionunclassified
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