Microbial load of reusables trocars after gynecology laparoscopy / Carga microbiana de trocartes reprocessaveis apos laparoscopias ginecologicas

AUTOR(ES)
DATA DE PUBLICAÇÃO

2009

RESUMO

The transmission of hospital infections is related to survival of microorganisms on environmental surfaces and surgical instruments. In recent years, Brazil has been facing a scenario scattered on the validation of cleaning and sterilizing surgical instruments used in minimally invasive procedures performed primarily for video. For implantation of effective reprocessing and need to know how this stuff in terms of contamination and whether the microbial load brought by this instrument is superior to the microbial challenge imposed by biological indicators. Thus, it is expected that the quantitative and qualitative analysis of microorganisms in laparoscopic surgical instruments after use to guide the surgical decision-making by health professionals to contribute to the improvement of the work aimed at patient safety. Objective: To identify the microbial load present in reprocessable trocars of 5 mm and 10 mm, used for realization of gynecological laparoscopy. Material and Method: This is an exploratory descriptive study. A total of 57 trocars of 5 mm and 10 mm in diameter was collected in the operating room, immediately after use in the patient, and packed separately in sterile plastic bag, added 250 ml of sterile distilled water, sealed and shaken at 120 rpm for 10 minutes. With aseptic technique, the trocars were removed from the pack and washed obtained was taken to the microbiology laboratory where it was filtered through a filter containing a cellulose membrane of 0,22µm which was placed in Petri dishes containing blood agar. The plates were incubated in and sent to the microorganism counts expressed as colony forming units (CFU) and identification following standard laboratory techniques. Results: In 52.63% of the trocars were not recovered microorganisms, 45.62% had microbial growth of 1-100 UFC, and only 1.75% of the trocars recovered microbial counts greater than 100 CFU. The microorganisms most frequently isolated were coagulase negative Staphylococcus (28%) and Bacillus sp (22%). Other organisms known clinically important included: Staphylococcus aureus, Pseudomonas aeruginosa, Escherichia coli and Aeromonas hidrophyla. Discuss: The study showed that the microbial challenge faced by the Centers for Sterilization is low compared with the challenge posed by biological indicators that monitor the sterilization cycle, corresponding to 106 CFU of sporulated bacilli. Moreover, despite the trocars used during gynecological laparoscopy considered clean, have lower microbial load, one can not infer that the risk of infectious complications are minimal. Conclusion: The laparoscopic trocars used during gynecological laparoscopy showed microbial clean low (?10 a ?102 UFC)

ASSUNTO(S)

infecção hospitalar colony count laparoscopy contagem de colonia microbiana cross infection laparoscopia trocarte instrumentos e aparelhos cirurgicos surgical instruments microbial trocars

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