Effectiveness of endoscope processing: An update

Area of Science:

• Healthcare-associated infections
• Medical device reprocessing
• Patient safety

Background:

• Endoscopy-associated outbreaks highlight risks from improperly reprocessed reusable endoscopes.
• Pathogen survival and transmission are linked to endoscope cleanliness, integrity, and dryness.

Purpose of the Study:

• To evaluate the effectiveness of current reusable endoscope processing standards.
• To identify common issues and deficiencies in endoscope reprocessing.

Main Methods:

• Systematic review of peer-reviewed articles, governmental agency reports, and adverse event data.
• Analysis of sterile processing breaches, endoscope defects, and microbial contamination.
• Compilation of evidence on endoscope processing effectiveness.

Main Results:

• Widespread nonadherence to endoscope processing standards is evident.
• High-level disinfection is insufficient for reliable microbial elimination.
• Many patient-ready endoscopes exhibit defects, residual soil, or retained fluid.

Conclusions:

• Routine audits and quality assurance measures (cleaning verification, visual inspection) are essential for improving reprocessing outcomes.
• Sterilization provides a greater safety margin than high-level disinfection due to automated systems, quality indicators, and protected packaging.