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Evaluation of operating room environment contamination and efficacy of 2% chlorhexidine for surgical hand scrubbing before and after gowning and gloving

Gobbo, Jessica Lais; Cardozo, Marita Vedovelli; Lacerda, Luciana de Cenço Corrêa de; Karcher, Débora Emy; Dias, Luís Gustavo Gosuen Gonçalves; Nardi, Andrigo Barboza de; Minto, Bruno Watanabe; Moraes, Paola Castro.
Acta sci. vet. (Online); 45: 1-10, 2017. tab, ilus
Artigo em Inglês | VETINDEX | ID: vti-20238


Background: Human skin is colonized by various species of microorganisms, which makes them difficult to eliminate even with the use of antimicrobial drugs. Real efficacy of the antimicrobial product combined with incorrect administration of antibiotics, in addition to potential environmental contamination, are critical points for the establishment of postoperative infection or absence of it. The main objective of the present study was to evaluate the efficacy of surgical antisepsis using a 2% chlorhexidine brush during a surgery, detect operating room environmental contamination, and verify the existence of bacterial resistance to the antibiotics most commonly used in Veterinary Medicine.Materials, Methods & Results: In ten cases of the surgical routine, samples were collected concurrently at specific time points throughout 2 h of surgical procedure. To evaluate the efficacy of 2% chlorhexidine brush on hand scrubbing of a mock surgeon, swabs were used to sample the surface of the hands before and after gowning and gloving. Samples or their dilutions were inoculated onto blood agar and MacConkey agar plates. Contamination of the operating room was evaluated using BHI agar plates distributed through the room. After the incubation period, counts and biochemical tests were performed, and an antimicrobial disc susceptibility test was performed using antibiotics most commonly used in Veterinary Medicine.Discussion: Even though the surgical unit of the Veterinary Hospital “Governador Laudo Natel” is constantly sanitized, it is not free from microbial contamination. In the present study, there was no bacterial growth on MacConkey agar, which suggests absence of fecal contamination. Blood agar is a culture medium that provides optimal growth conditions to most pathogenic bacteria, which explains the higher microbial growth observed in this medium.[...](AU)
Biblioteca responsável: BR68.1
Localização: BR68.1