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Evaluation of a new packaging process for non-autoclavable endoscopes: results for the first 100 microbiological
C Minebois1, P Saviuc1, J Shum1
1Unité d'hygiène hospitalière et gestion des risques, Pôle santé publique, Centre Hospitalier Universitaire Grenoble-Alpes, CS 10217, Grenoble, France.
Background:
A new process for packaging endoscopes (SureStore®, Medical Innovations Group) immediately after they exit from washing and disinfection in an automated endoscope reprocessor (AER) allows for endoscopes to be stored for up to 15 days.
Aim:
To describe the microbiological quality of samples from gastrointestinal endoscopes following this process.
Methods:
Three-month prospective study using microbiological sampling from a stock of 38 gastrointestinal endoscopes carried out in a French University Hospital. The compliance rate (proportion of samples ≤25 cfu with no pathogenic micro-organisms) and the rate of sterile samples (proportion of germ-free samples) were calculated. We then used multivariate analysis to determine the factors associated with the maintenance of sterility.
Findings:
One hundred samples were taken from stored endoscopes: 31 stored for ≤3 days, 34 stored between 3 and 7 days, and 35 after storage between 7 and 15 days. The compliance rate was 98% and the sterile sample rate was 60%. Only the time between leaving the AER and packaging was significantly associated with the sterility of samples (P = 0.02). The probability of having a sterile sample decreased 17-fold when the endoscope was packaged >2 h after leaving the AER (P = 0.04) compared to an endoscope packaged within 1 h after leaving the AER.
Conclusion:
The SureStore process seems capable of satisfactorily maintaining compliance (98%) of samples taken from endoscopes stored for up to 15 days. The delay in packaging should not exceed 1 h, as the rate of sterile samples decreases thereafter.
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