Perfil bacteriano de cultura de ponta de cateter venoso central

Patrícia Bentes Marques; Flavia Matilla Colares Carneiro; Alcione Pena Ferreira

doi:10.5123/S2176-6223201100100006

Authors

Patrícia Bentes Marques Escola Superior da Amazônia, Belém, Pará, Brasil
Flavia Matilla Colares Carneiro Centro Universitário do Estado do Pará, Belém, Pará, Brasil
Alcione Pena Ferreira Centro Universitário do Estado do Pará, Belém, Pará, Brasil UNIMED, Belém, Pará, Brasil

DOI:

https://doi.org/10.5123/S2176-6223201100100006

Keywords:

Catheters, Catheter-Related Infections, Retrospective Studies, Bacterial Infections

Abstract

ABSTRACT

INTRODUCTION: Central venous catheters (CVC) devices are of fundamental importance and are the most used worldwide in the treatment of critically ill patients in Intensive Care Units. These invasive devices represent a potential source of local or systemic infectious complications.
OBJECTIVES: To evaluate the microorganisms found in cultures from CVC analyzed in the Laboratory of Unimed-Belem, from January 2007 to January 2008.
METHODS: A retrospective analysis of the results of 50 cultures of CVC was performed by semi-quantitative method of Maki and automated antibiogram [MiniApi (BioMerieux)], according to the criteria recommended by the Clinical and Laboratory standards Institute.
RESULTS: Of the 50 samples of CVC, 36 (72%) were positive for Staphylococcus aureus (27.8%) which was the microorganism most frequently observed, followed by Pseudomonas aeruginosa (22.2%) and coagulase negative Staphylococcus (22.2%). The isolates of P. aeruginosa showed a greater sensitivity to colistin (100%), ticarcillin/clavulanate (100%), piperacillin/tazobactam (100%) and meropenem (80%), and a 50% resistance to other antimicrobials. Oxacillin-resistant strains were all sensitive to vancomycin and fusidic acid, including S. aureus (80%) and CNS (12.5%) with resistance to penicillin G. Isolates of S. aureus and CNS were sensitive to over 75% of the tested antibiotics, including teicoplanin, minocycline and quinupristindalfopristin, and were highly resistant to erythromycin, tetracycline and norfloxacin.
CONCLUSIONS: The most frequent microorganisms were S. aureus in agreement with other studies carried out in hospitals in Belem. With regard to antibiotics, our results indicate an increase in multidrug-resistant strains, a fact that worries local hospital managers.