Cited by 58Nosocomial Infections in ICUAntifungal resistance and susceptibilityOral microbiology and periodontitis research

Colonization of oropharynx and lower respiratory tract in critical patients: risk of ventilator-associated pneumonia.

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de Carvalho Baptista, Ivany Machado, Martinho, Frederico Canato, Nascimento, Gustavo Giacomelli, da Rocha Santos, Carlos Eduardo, Prado, Renata Falchete do, Valera, Marcia Carneiro·2018·Archives of Oral Biology

Abstract

Objective To investigate the microbial diversity existing in oral cavity and respiratory tract samples (from mini-bronchoalveolar lavage (BAL), endotracheal aspirate, and orotracheal tube) of patients on mechanical ventilation by using the checkerboard DNA-DNA hybridisation. Also, the study aimed to evaluate whether the microbial profile in the oral cavity is found in respiratory tract samples, at different periods of mechanical ventilation time (12h, 48h, 96h) in attempt to identification of relationship between VAP (ventilator-associated pneumonia) and bacterial species studied. The last objective was to analyses correlation between blood cultures and VAP.Design The samples were collected from ten patients in intensive care unit with medical prescription of orotracheal intubation and mechanical ventilation. Clinical data were tabulated and blood cultures were performed according medical indication. For checkerboard samples collection, chosen sites were the dorsal side of the tongue and gingival sulcus at 12h, 48h, 96h, BAL, at 12h, endotracheal aspirate at 48 and 96h, and orotracheal tube at extubation time, when feasible.Results It was possible to identify the presence of bacterial species in mouth and in the BAL/endotracheal aspirate. The data demonstrated an increase in the quantity of bacterial associated with prolonged use of mechanical ventilation (48 and 96h).Conclusions Bacterial species may migrate rapidly from mouth and upper airways during orotracheal intubation which contributes to the pathogenesis of VAP. There were associations between VAP and Enterococcus faecalis, Fusobacterium periodonticum, Gemella morbillorum, Neisseria mucosa, Propionibacterium acnes, Prevotella melaninogenica, Streptococcus oralis, Streptococcus sanguinis, Treponema denticola, Treponema socransckii, and Veillonella parvula.

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Crossref · 10.1016/j.archoralbio.2017.09.029

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  • Periodontal pathogens such as Treponema denticola, P. gingivalis, Fusobacterium nucleatum, Actinobacillus actinomycetemcomitans and Veillonella parvula have been detected in the lungs of ICU patients.

    “Periodontal pathogens such as Treponema denticola, P. gingivalis, Fusobacterium nucleatum, Actinobacillus actinomycetemcomitans and Veillonella parvula, have been detected in the lungs of ICU patients (Kumar, 2017; de Carvalho Baptista et al., 2018).”

    From Oral Microbiome and SARS-CoV-2: Beware of Lung Co-infection (2020) · cites this paper as de Carvalho Baptista et al., 2018

  • In the process of orotracheal intubation, bacteria can rapidly migrate from the oral cavity and upper respiratory tract into the lungs.

    “In the process of orotracheal intubation, bacteria can rapidly migrate from the oral cavity and upper respiratory tract into the lungs (de Carvalho Baptista et al., 2018).”

    From Oral Microbiome and SARS-CoV-2: Beware of Lung Co-infection (2020) · cites this paper as de Carvalho Baptista et al., 2018

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Research works printed but not linked: 2

  1. Amaral, S. M., Cortes Ade, Q., & Pires, F. R. (2009). Nosocomial pneumonia: Importance of the oral environment. Journal Brasileiro de Pneumologia, 35(11), 1116-1124.
  2. Beraldo, C. C., & Andrade, D. (2008). Oral hygiene with chlorhexidine in preventing pneumonia associated with mechanical ventilation. Journal Brasileiro de Pneumologia, 34(9), 707-714.

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Authors
de Carvalho Baptista, I. M., Martinho, F. C., Nascimento, G. G., da Rocha Santos, C. E., Prado, R. F. D., & Valera, M. C.
Affiliations
  • Universidade Estadual Paulista (Unesp) (BR)
  • Aarhus University (DK)
Corresponding author
Prado, Renata Falchete do
Venue
Archives of Oral Biology
Publisher
Elsevier BV
Published
2018-01
Volume
85
Pages
64-69
ISSN
0003-9969 (ISSN-L)
OpenAlex
W2762038834
Cited by
58
References
27
Citations by year
2026: 4 · 2025: 7 · 2024: 7 · 2023: 7 · 2022: 14 · 2021: 11 · 2020: 5 · 2019: 2 · 2018: 1
FWCI
2.05
Type
journal article
Language
en
Open access
Locations
  • Archives of Oral Biology (publishedVersion)
  • PubMed (publishedVersion)
  • Americanae (AECID Library) (publishedVersion, other-oa)
  • Scopus (Elsevier) (submittedVersion)
  • LA Referencia (Red Federada de Repositorios Institucionales de Publicaciones Científicas) (submittedVersion, other-oa)
Funders
  • Fundação de Amparo à Pesquisa do Estado de São Paulo (2014/, 14/25789-9)
  • Coordenação de Aperfeiçoamento de Pessoal de Nível Superior
  • Universidade Estadual Paulista
Topics
  • Health Sciences › Medicine › Critical Care and Intensive Care Medicine › Nosocomial Infections in ICU
  • Health Sciences › Medicine › Infectious Diseases › Antifungal resistance and susceptibility
  • Health Sciences › Dentistry › Periodontics › Oral microbiology and periodontitis research
Keywords
ventilator-associated pneumonia, oropharyngeal colonization, lower respiratory tract colonization, mechanical ventilation, orotracheal intubation, oral bacteria, checkerboard DNA-DNA hybridization, blood culture, Enterococcus faecalis, Fusobacterium periodonticum, Treponema, Streptococcus, Neisseria mucosa, Propionibacterium acnes, Veillonella parvula, bacterial diversity, intensive care unit patients
MeSH terms
Adult, Aged, Aged, 80 and over, Female, Humans, Intensive Care Units, Intubation, Intratracheal, Lung, Male, Middle Aged, Mouth, Oropharynx, Risk Factors, DNA Probes, Bronchoalveolar Lavage, Pneumonia, Ventilator-Associated

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