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Short peripheral venous catheters contamination and the dangers of bloodstream infection in Portugal: an analytic study

2023-03-09Journal article Open access
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dc.contributor.authorOsório, Nádia
dc.contributor.authorOliveira, Vânia
dc.contributor.authorCosta, Maria Inês
dc.contributor.authorSantos-Costa, Paulo
dc.contributor.authorSerambeque, Beatriz
dc.contributor.authorGama, Fernando
dc.contributor.authorAdriano, David
dc.contributor.authorGraveto, João
dc.contributor.authorParreira, Pedro
dc.contributor.authorSalgueiro-Oliveira, Anabela
dc.date.accessioned2023-03-14T10:11:48Z
dc.date.available2023-03-14T10:11:48Z
dc.date.issued2023-03-09
dc.description.abstractPeripheral venous catheters (PVCs) are the most used vascular access devices in the world. However, failure rates remain considerably high, with complications such as PVC-related infections posing significant threats to patients’ well-being. In Portugal, studies evaluating the contamination of these vascular medical devices and characterizing the associated microorganisms are scarce and lack insight into potential virulence factors. To address this gap, we analyzed 110 PVC tips collected in a large tertiary hospital in Portugal. Experiments followed Maki et al.’s semi-quantitative method for microbiological diagnosis. Staphylococcus spp. were subsequently studied for the antimicrobial susceptibility profile by disc diffusion method and based on the cefoxitin phenotype, were further classified into strains resistant to methicillin. Screening for the mecA gene was also done by a polymerase chain reaction and minimum inhibitory concentration (MIC)-vancomycin as determined by E-test, proteolytic and hemolytic activity on skimmed milk 1% plate and blood agar, respectively. The biofilm formation was evaluated on microplate reading through iodonitrotetrazolium chloride 95% (INT). Overall, 30% of PVCs were contaminated, and the most prevalent genus was Staphylococcus spp., 48.8%. This genus presented resistance to penicillin (91%), erythromycin (82%), ciprofloxacin (64%), and cefoxitin (59%). Thus, 59% of strains were considered resistant to methicillin; however, we detected the mecA gene in 82% of the isolates tested. Regarding the virulence factors, 36.4% presented α-hemolysis and 22.7% β-hemolysis, 63.6% presented a positive result for the production of proteases, and 63.6% presented a biofilm formation capacity. Nearly 36.4% were simultaneously resistant to methicillin and showed expression of proteases and/or hemolysins, biofilm formation, and the MIC to vancomycin were greater than 2 µg/mL. Conclusion: PVCs were mainly contaminated with Staphylococcus spp., with high pathogenicity and resistance to antibiotics. The production of virulence factors strengthens the attachment and the permanence to the catheter’s lumen. Quality improvement initiatives are needed to mitigate such results and enhance the quality and safety of the care provided in this field.pt_PT
dc.description.versioninfo:eu-repo/semantics/publishedVersionpt_PT
dc.identifier.doi10.3390/microorganisms11030709pt_PT
dc.identifier.issn2076-2607
dc.identifier.urihttp://hdl.handle.net/10400.26/44108
dc.language.isoengpt_PT
dc.peerreviewedyespt_PT
dc.publisherMDPIpt_PT
dc.rights.urihttp://creativecommons.org/licenses/by-nc-sa/4.0/pt_PT
dc.subjectPeripheral intravenous catheterpt_PT
dc.subjectStaphylococcus spppt_PT
dc.subjectVirulence factorspt_PT
dc.subjectAntibiotic resistancept_PT
dc.titleShort peripheral venous catheters contamination and the dangers of bloodstream infection in Portugal: an analytic studypt_PT
dc.typejournal article
dspace.entity.typePublication
oaire.citation.issue3pt_PT
oaire.citation.startPage709pt_PT
oaire.citation.titleMicroorganismspt_PT
oaire.citation.volume11pt_PT
person.familyNameOsório
person.givenNameNádia
person.identifier.ciencia-id271E-2D9B-E7F3
person.identifier.orcid0000-0001-9559-2165
person.identifier.scopus-author-id57188973499
rcaap.rightsopenAccesspt_PT
rcaap.typearticlept_PT
relation.isAuthorOfPublicationf98c6cd7-be5f-4d66-bbf5-7ae3746e3d6b
relation.isAuthorOfPublication.latestForDiscoveryf98c6cd7-be5f-4d66-bbf5-7ae3746e3d6b

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