Retrospective study of Candida sp. contaminations of endoscopes at the University Hospital of Tlemcen (Algeria)

Hassaine-Lahfa, I.; Boucherit-Otmani, Z.; Sari-Belkherroubi, L.; Boucherit, K.

doi:10.1016/j.mycmed.2017.01.012

Cited by 2 publications

(3 citation statements)

References 27 publications

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“…The Algerian study has also shown the importance of compressed air drying in the reduction of nosocomial infections linked to endoscopes by yeasts specially Candida sp. [12].…”

Section: Discussionmentioning

confidence: 99%

Evaluation of the Microbiological Contamination of Digestive Endoscopes at the Teaching Hospital of Marrakech (Morocco)

Lahoucine¹,

Rami²,

Khalfi³

et al. 2018

IJG

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The purpose of this study is to evaluate the quality of endoscope disinfection at teaching Hospital of Marrakech between March 1st and June 1st, 2015. It is a prospective study of the results of microbiological tests carried out at the teaching Hospital of Marrakech between March 1st and June 1st 2015 over a period of 3 months, with digestive endoscopes. The sampling and the interpretation of the microbiological results were carried out according to the recommendations of the Technical Committee for Nosocomial Infections and Infections Linked to Health Care) (CTINILS). The results obtained showed a residual contamination of total aerobic mesophilic flora (FMAT) at the order of 4,9.103 CFU/ endoscope. 12 microorganisms were isolated and identified. Pseudomonas spp. was the most frequently isolated bacteria in these samples, (47% of all positive samples). The rest is shared between Micrococcus spp (15%), Staphylococcus spp (23%) and Bacillus spp. (10%). The corrective measures established concerning the disinfection procedure adopted in the service made it possible to eradicate the contamination at a target level (FMAT <10 CFU / endoscope). The respect of the basic principles of hospital hygiene and the application of rigorous cleaning and disinfection procedures are major elements in the prevention and fight against nosocomial infections.

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“…The Algerian study has also shown the importance of compressed air drying in the reduction of nosocomial infections linked to endoscopes by yeasts specially Candida sp. [12].…”

Section: Discussionmentioning

confidence: 99%

Evaluation of the Microbiological Contamination of Digestive Endoscopes at the Teaching Hospital of Marrakech (Morocco)

Lahoucine¹,

Rami²,

Khalfi³

et al. 2018

IJG

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“…Four articles mainly explored microbial contamination after gastrointestinal endoscope drying [24][25][26][27]. Grandval et al [24] compared the drying effects of storage cabinets for heat-sensitive endoscopes (SCHE) (all endoscope channels were sequentially rinsed with medical-grade air or highly efficient filtered particulate air (HEPA) to achieve air circulation for 10 min per endoscope and achieve a drying effect) and the drying effects of a conventional storage cabinet, showing that 56.1% (n = 23) of endoscopes in the intervention group were not contaminated.…”

Section: Microbial Contaminationmentioning

confidence: 99%

“…The results of endoscope sterilization without drying were compared with that of first sterilizing and then drying endoscope channels with compressed air. Evidence demonstrated that 25 Candida strains were isolated at the first evaluation and 9 Candida strains were isolated in the final two evaluations [27]. Chan et al [26] used 30 ml of 75% ethanol to rinse each channel of the endoscope, let the channels sit for 3 min, and then flushed each channel with compressed air for 30 s; the qualified rate of microbial detection from this method was compared with the qualified rate of microbial detection without drying and compressed air flushing for 30 s. There was a 5 Gastroenterology Research and Practice significant difference (A group, 73.73%; B group, 77.08%; C group, 89.52%).…”

Section: Microbial Contaminationmentioning

confidence: 99%

The Effectiveness of Drying on Residual Droplets, Microorganisms, and Biofilms in Gastrointestinal Endoscope Reprocessing: A Systematic Review

Tian

Sun

Guo

et al. 2021

Gastroenterology Research and Practice

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Background. Despite endoscope reprocessing, residual droplets remain in gastrointestinal endoscope working channels. Inadequate drying of gastrointestinal endoscope working channels may promote microbial reproduction and biofilm formation, increasing the risk of infection in patients. This review was designed to provide the current status of gastrointestinal endoscope drying, emphasize the importance of gastrointestinal endoscope drying, and evaluate the effectiveness of different drying methods of gastrointestinal endoscope in reducing residual droplets and microbial growth risk. Methods. A systematic review was conducted according to the Preferred Reporting Items for Systematic Reviews and Meta-Analyses (PRISMA) reporting checklist. The PubMed, Web of Science, Medline, EMBASE, EBSCO, CNKI, CQVIP, and Wanfang Data databases were searched from 2010 to 2020 to identify eligible articles focused on methods of gastrointestinal endoscope drying and the status of endoscope drying. The following key points were analyzed: type of intervention, amount of residual droplets, major microbial types, and effectiveness of biofilm intervention. JBI quality assessment tool was used to determine bias risk for inclusion in the article. Results. This review included twelve articles. Two of the articles reported lack of drying of gastrointestinal endoscopes while the other ten reported residual droplets, microbial growth, and biofilm formation after different methods of drying. Four articles reported 0 to 4.55 residual droplets; four articles reported that the main microbial types were cocci and bacilli, most commonly Staphylococcus, Escherichia coli, Bacillus maltophilia, and Pseudomonas aeruginosa; and two reported that drying could effectively reduce biofilm regeneration. The type of intervention is as follows: automatic endoscopy reprocessor (AER), manual compressed air drying, and the Dri-Scope Aid for automatic drying and drying cabinet. Conclusions. While endoscope reprocessing may not always be effective, an automatic endoscope reprocessor plus the Dri-Scope Aid with automatic drying over 10 min or storage in a drying cabinet for 72 h may be preferred.

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Retrospective study of Candida sp. contaminations of endoscopes at the University Hospital of Tlemcen (Algeria)

Cited by 2 publications

References 27 publications

Evaluation of the Microbiological Contamination of Digestive Endoscopes at the Teaching Hospital of Marrakech (Morocco)

Evaluation of the Microbiological Contamination of Digestive Endoscopes at the Teaching Hospital of Marrakech (Morocco)

The Effectiveness of Drying on Residual Droplets, Microorganisms, and Biofilms in Gastrointestinal Endoscope Reprocessing: A Systematic Review

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