Avaliação da segurança microbiológica das luvas de látex para procedimento em uma unidade de terapia intensiva / Evaluation of the microbiological safety of latex gloves for procedures in an Intensive Therapy Unit

AUTOR(ES)
DATA DE PUBLICAÇÃO

2007

RESUMO

Introduction: the use of latex gloves is essential and unquestionable in activities that involve biological risk in the health care. However, it is still controversial the microbiological safety of gloves for procedures considering their environmental exposition. Objectives: quantify the Colony-Forming Units (CFU) of latex gloves for procedures in different moments (beginning, middle and end of boxes) in real situation and gloving control; evaluate the contamination of gloves regarding the boxes time of environmental exposition; isolate the most frequent microorganism and determine the sensibility profile to antibiotics. Material and Method: It is a comparative and prospective study performed in an intensive therapy unit of a school hospital. After approval of the committee of ethics in research the collection of microbiological sample of latex gloves through digital pressure in Petri plaques prepared with culture media Mueller Hinton (MH) was initiated. This procedure was performed in 31 latex gloves boxes for procedures in different moments (beginning, middle and end of boxes) and, in real gloving and control situations. The Etest® was used to determine the sensibility profile of antibiotics (Ciprofloxacin®, Oxacillin®, Cefepime®, Gentamicin®, Amikacin® e Vancomycin®). The data was statistically analyzed through the Cochran and Spearman test considering a level of significance of a=0,05. Analysis of variance (ANOVA) with repetitive measures was used for the comparison of number of UFC. Results: a total of 372 Petri plaques were obtained, 186 in real gloving situation and 186 in the control situation. The CFU average was 4,7 in the control situation, and 6,2 in the real gloving situation, with no statistically significant differences (p=0,601). There was no evidence of significant differences in the microbial growth (UFC) in the evaluation of gloves pairs in the beginning, middle and end of boxes in both the real and control situations. There was no correlation (p=0.63) in the association between time of opening and finishing the box of gloves with the number of CFU, both in the real and control situations. The Staphylococcus spp. was the most frequent microorganism. Regarding the sensibility profile, 13 strains (24.8%) were resistant to at least two antibiotics; from these three (5.5%) resisted Vancomycin®. Conclusion: The results obtained support the initial hypothesis regarding the microbiological safety of latex gloves for procedures considering the low levels of CFU.

ASSUNTO(S)

infecção hospitalar luvas protetoras resistência a antibiótico intensive care units cross infection staphylococcus staphylococcus gloves unidades de terapia intensiva protective drug resistance

ACESSO AO ARTIGO

Documentos Relacionados