&lt;b&gt;&lt;i&gt;Brevundimonas vesicularis&lt;/i&gt;&lt;/b&gt; Peritonitis in a Chronic Peritoneal Dialysis Patient

Paramasivam, Vijayakumar; Paez, Armando; Verma, Ashish; Landry, Daniel; Braden, Gregory

doi:10.1159/000517140

Cited by 4 publications

(2 citation statements)

References 17 publications

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“…However, infections caused by this bacterium have been reported, including instances of bloodstream infection [ 36 ], meningitis [ 37 ], and contamination in Plasmodium in vitro cultures [ 38 ]. Brevundimonas vesicularis , a Gram-negative rod, rarely causes human infections, but there are studies reporting cases of chronic peritoneal dialysis patients developing Sphingomonas paucimobilis peritonitis [ 39 ]. As a nitrogen-fixing bacterium, H erbaspirillum huttiense has been implicated in the first reported case of sepsis in Korea caused by this organism [ 40 ].…”

Section: Discussionmentioning

confidence: 99%

Comparing the Effects of Two Culture Methods to Determine the Total Heterotrophic Bacterial Colony Count in Hospital Purified Water

Cao,

Xiong,

Fan

et al. 2024

J Epidemiol Glob Health

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Background Accurately detecting the quantity of microorganisms in hospital purified water is of significant importance for early identification of microbial contamination and reducing the occurrence of water-borne hospital infections. The choice of detection method is a prerequisite for ensuring accurate results. Traditional Plate Count Agar (PCA) belongs to a high-nutrient medium, and there may be limitations in terms of accuracy or sensitivity in detecting microorganisms in hospital purified water. On the other hand, Reasoner’s 2A agar (R2A) has characteristics, such as low-nutrient levels, low cultivation temperature, and extended incubation time, providing advantages in promoting the growth of aquatic microorganisms. This study, through comparing the differences in total colony counts between two detection methods, aims to select the method more suitable for the growth of aquatic microorganisms, offering new practical insights for accurately detecting the total count of heterotrophic bacteria in hospital purified water. Methods The most commonly used plate count agar (PCA) method, and the R2A agar culture were adopted to detect microorganisms and determine the total number of bacterial colonies in the water for oral diagnosis and treatment water and terminal rinse water for endoscopes in medical institutions. The two water samples were inoculated by pour plate and membrane filtration methods, respectively. Using statistical methods including Spearman and Pearson correlation, Wilcoxon signed-rank sum test, paired-Chi-square test, and linear regression, we analyze the differences and associations in the bacterial counts cultivated through two different methods. Results In 142 specimens of the water, the median and interquartile range of the heterotrophic bacterial colony number under the R2A culture method and under the PCA culture method were 200 (Q1–Q3: 25–18,000) and 6 (Q1–Q3: 0–3700). The total number of heterotrophic bacteria colonies cultured in R2A medium for 7 days was more than that cultured in PCA medium for 2 days (P < 0.05). The linear regression results showed a relatively strong linear correlation between the number of colonies cultured by the R2A method and that cultured by the PCA method (R2 = 0.7264). The number of bacterial species detected on R2A agar medium is greater than that on PCA agar medium. Conclusion The R2A culture method can better reflect the actual number of heterotrophic bacterial colonies in hospital purified water. After logarithmic transformation, the number of colonies cultured by the two methods showed a linear correlation.

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Section: Discussionmentioning

confidence: 99%

Comparing the Effects of Two Culture Methods to Determine the Total Heterotrophic Bacterial Colony Count in Hospital Purified Water

Cao,

Xiong,

Fan

et al. 2024

J Epidemiol Glob Health

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“…A Brevundimonas vesicularis é uma bactéria aeróbica e bacilo gram-negativo que produz oxidase e catalase. A Brevundimonas vesicularis, tem sido raramente relatado como um patógeno causador de infecção adquirida em ambientes hospitalares (Zhang;Hsu;Li, 2012) posterior investigação e identificação do patógeno (Paramasivama et al, 2021).…”

Section: Introductionunclassified

Brevundimonas Vesicularis: Uma Revisão De Literatura

Amaral

2024

Rev. Foco

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O gênero Brevundimonas, inicialmente descrito como Corynebacterium vesiculare e posteriormente reclassificado como Pseudomonas diminuta e Pseudomonas vesicularis, constitui um grupo de bactérias Gram-negativas não fermentadoras. A Brevundimonas vesicularis, principais espécies, é uma bactéria aeróbica relacionada a infecções adquiridas em ambientes hospitalares, principalmente em pacientes imunocomprometidos. As características bacteriológicas incluem a produção de pigmentos solúveis em água, e a necessidade de fatores de crescimento específicos. O gênero é encontrado em diversos habitats, como solos, sedimentos marinhos e ambientes aquáticos. O estudo estabeleceu critérios temporais e linguísticos, pesquisando 84 artigos sobre B. vesicularis, das bases de dados PUBMED E LILACS. A análise organizou os textos, priorizando a relevância e o tratamento abordado. Após seleção rigorosa, 8 artigos foram incluídos. Em humanos, a B.vesicularis é reconhecida como um patógeno oportunista, causando infecções como bacteremia, infecção ocular, peritonite, infecção do trato urinário e infecção de pele. A resistência a antibióticos é variável, mas a literatura destaca a suscetibilidade à piperacilina, tazobactam, carbapenêmicos e aminoglicosídeos. No entanto, a resistência a diversas classes de antibióticos, incluindo cefalosporinas e fluoroquinolonas, foi relatada. Os casos de infecção por Brevundimonas são frequentemente associados a pacientes imunocomprometidos, sendo raros em pacientes imunocompetentes. A remoção de cateteres é uma medida comum de tratamento, e a escolha da terapia antimicrobiana varia de acordo com os resultados de testes de suscetibilidade. A falta de estudos avançados destaca a necessidade de compreender melhor os mecanismos de resistência e a eficácia de diferentes tratamentos para essa infecção emergente. A prevenção inclui a adoção de boas práticas de higiene em ambientes hospitalares.

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Identifying Serum Metabolites and Gut Bacterial Species Associated with Nephrotoxicity Caused by Arsenic and Fluoride Exposure

Tian

Yan

Chen

et al. 2023

Biol Trace Elem Res

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<b><i>Brevundimonas vesicularis</i></b> Peritonitis in a Chronic Peritoneal Dialysis Patient

Cited by 4 publications

References 17 publications

Comparing the Effects of Two Culture Methods to Determine the Total Heterotrophic Bacterial Colony Count in Hospital Purified Water

Comparing the Effects of Two Culture Methods to Determine the Total Heterotrophic Bacterial Colony Count in Hospital Purified Water

Brevundimonas Vesicularis: Uma Revisão De Literatura

Identifying Serum Metabolites and Gut Bacterial Species Associated with Nephrotoxicity Caused by Arsenic and Fluoride Exposure

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