The antimicrobial effects of ketamine combined with propofol: An in vitro study
Küçük Resim Yok
Tarih
2013
Dergi Başlığı
Dergi ISSN
Cilt Başlığı
Yayıncı
Elsevier Science Inc
Erişim Hakkı
info:eu-repo/semantics/openAccess
Özet
Background and objectives: Ketamine and propofol are the general anesthetics that also have antimicrobial and microbial growth-promoting effects, respectively. Although these agents are frequently applied together during clinical use, there is no data about their total effect on microbial growth when combined. In this study, we investigated some organisms' growth in a ketamine and propofol mixture. Method: We used standard strains including Escherichia coli, Staphylococcus aureus, Pseudomonas aeruginosa, and Candida albicans in this study. Time-growth analysis was performed to assess microbial growth rates in 1% propofol. Antimicrobial activity of ketamine, alone and in propofol was studied with microdilution method. Results: In propofol, studied strains grew from 103-104 cfu/mL to ?AO cfu/mL concentrations within 8-16 hours depending on the type of organism. Minimal inhibitory concentration (MIC) and minimal bactericidal concentration (MBC) (for candida, minimal fungicidal concentration) of ketamine were determined as follows (MIC, MBC): E.coli 312.5, 312.5 pg/mL; S.aureus 19.5, 156 pg/mL; P.aeruginosa 312.5, 625 pg/mL; and C.albicans 156, 156 pg/ml. In ketamine+propofol mixture, ketamine exhibited antimicrobial activity to E.coli, P.aeruginosa and C.albicans as MBCs at 1250, 625 and 625 pg/mL, respectively. Growth of S. aureus was not inhibited in this mixture (ketamine concentration=1250 pg/mL). Conclusion: Ketamine has sustained its antimicrobial activity in a dose-dependent manner against some organisms in propofol, which is a strong microbial growth-promoting solution. Combined use of ketamine and propofol in routine clinical application may reduce the risk of infection caused by accidental contamination. However, one must keep in mind that ketamine cannot reduce all pathogenic threats in propofol mixture. (C) 2013 Sociedade Brasileira de Anestesiologia. Published by Elsevier Editora Ltda. All rights reserved.
Açıklama
Anahtar Kelimeler
Antimicrobial activity, Benzethonium chloride, Ketamine, Ketofol, Propofol
Kaynak
Revista Brasileira De Anestesiologia
WoS Q Değeri
Q4
Scopus Q Değeri
N/A
Cilt
63
Sayı
6
