Comparison of two endoscope channel cleaning approaches to remove cyclic build-up biofilm.
J Hosp Infect
; 150: 91-95, 2024 Aug.
Article
em En
| MEDLINE
| ID: mdl-38830542
ABSTRACT
INTRODUCTION:
Biofilm contributes significantly to bacterial persistence in endoscope channels. Enhanced cleaning methods capable of removing biofilm from all endoscope channels are required to decrease infection risk to patients. This head-to-head study compared cyclic build-up biofilm removal of an automated endoscope channel cleaner (AECC) with standard manual cleaning according to instructions for use (IFU) in polytetrafluorethylene channels.METHODS:
Cyclic build-up biofilm was grown in 1.4-mm (representing air/water and auxiliary channels) and 3.7-mm (representing suction/ biopsy channels) inner diameter polytetrafluorethylene channels. All channels were tested for residual total organic carbon, protein, and viable bacteria. Internationally recognized ISO 15883-52021 alert levels were used as cleaning benchmarks for protein (3 µg/cm2) and total organic carbon (6 µg/cm2).RESULTS:
The automated cleaner significantly outperformed manual cleaning for all markers assessed (protein, total organic carbon, viable bacteria) in 1.4-mm and 3.7-mm channels representing air/water/auxiliary and suction/biopsy channels, respectively. Manual cleaning failed to remove biofilm from the air/water and auxiliary channels. According to the IFU, these channels are not brushed, suggesting a potential root cause for a portion of the numerous endoscopy-associated infections reported in the literature.CONCLUSION:
AECC shows potential to deliver enhanced cleaning over current practice to all endoscope channels and may thereby address infection risk.Palavras-chave
Texto completo:
1
Base de dados:
MEDLINE
Assunto principal:
Biofilmes
/
Endoscópios
Limite:
Humans
Idioma:
En
Ano de publicação:
2024
Tipo de documento:
Article