Presented by: Sam Martinez, CASC Administrator, Surgical Care Affiliates Channel Islands Surgicenter Thousand Oaks Endoscopy Center

Assuring clean, high level disinfection is a tricky process. This session will review critical steps that must be followed to assure patient safety and adequate sterilization, including tools to demonstrate to regulators that the appropriate standards are being followed.

This Just In from Outpatient Surgery: First Malpractice Trial Over Contaminated VA Endoscopes Begins

All health care personnel in the endoscopy suite should be trained in and adhere to standard infection prevention and control recommendations (e.g., standard precautions), including those to protect both patients and health care workers.

Due to the potential for splashing and inadvertent exposure to fluids, the scope tech should always wear PPE to include at a minimum: Face Shield New cover gown for each procedure Gloves Shoe Covers Respiratory Devices

Appropriate equipment and supplies include: Single use or multi-use* endoscope cleaning brush Syringes for irrigation Enzymatic cleaning solution Leak Tester Correct fittings for the scopes to the processor Testing supplies and regular testing of solution

Point-of-use pre-cleaning should be performed to remove visible debris by wiping the exterior of the endoscope with appropriate detergent solution followed by aspiration of a large volume of detergent solution through the air/water and biopsy channels.

After pre-cleaning, transport the soiled endoscope to the reprocessing area for high- level decontamination. Processing of scopes, beyond pre-cleaning, should not be performed in the procedure room. During transportation, soiled endoscopes should be contained in a manner that prevents exposure of staff, patients or the environment to the potentially infectious organisms.

Perform pressure/leak testing after each use and before formal reprocessing, according to manufacturer guidelines.

Before manual or automated high-level disinfection, meticulously clean the entire endoscope, including valves, channels, connectors and all detachable parts per the manufacturer’s instructions

Disconnect and disassemble endoscope components (e.g., air/water and suction valves) as far as possible and completely immerse the endoscope and components in an appropriate detergent that is compatible with the endoscope, according to the manufacturer’s instructions

Use brushes appropriate for the size of the endoscope channel, parts, connectors and openings (e.g., bristles should contact all surfaces) for cleaning. Cleaning items should be one time use or thoroughly cleaned and disinfected/sterilized and inspected for defects between uses.

Enzymatic detergents and solutions must be mixed to manufacturer’s instructions. CMS and other surveyors look for discrepancies in the mixing of these solutions. Discard enzymatic detergents after each use because these products are not microbicidal and will not retard microbial growth

Select a liquid disinfectant or sterilization process that is compatible with the endoscope. Check with the manufacturer of the endoscope to determine if a specific disinfectant or processing modality is safe for use and will not functionally damage your scopes.

High Level Disinfection solutions should be tested at least once daily, or more often with the appropriate testing strips to ensure efficacy of the solution. If the test fails, all high level disinfection processes must be stopped until the solution can be changed.

Completely immerse the endoscope and its components in the high-level disinfectant solution and ensure that all channels are perfused. Non-immersible GI endoscopes should not be used. If manual disinfection is being used, follow the instructions provided in the solution documentation to ensure appropriate exposure time, etc.

If an AER (Automatic Endoscope Reprocessor) is used, place the endoscope and endoscope components in the reprocessor. Attach all channel connectors according to the AER and endoscope manufacturers’ instructions to ensure exposure of all internal surfaces with the high-level disinfectant solution.

If an AER cycle is interrupted, high-level disinfection or sterilization cannot be ensured; therefore, the cycle should be repeated.

After high-level disinfection, rinse the endoscope and flush the channels with sterile, filtered or tap water to remove the disinfectant solution. Discard the rinse water after each use/cycle.

Flush the channels with 70% to 90% ethyl or isopropyl alcohol and dry by using forced air. These final drying steps greatly reduce the risk of remaining pathogens, as well as the possibility of recontamination of the endoscope by waterborne microorganisms.

Endoscopes should be stored in a manner that will protect them from contamination. When storing the endoscope, hang it in a vertical position to facilitate drying (with caps, valves and other detachable components removed, per manufacturer’s instructions).

Although reuse of endoscopes within 10 to 14 days of high-level disinfection appears to be safe, several organizations advise shorter intervals such as 7 days to ensure a lesser chance of contamination.

High-level disinfect or sterilize the water bottle (used for cleaning the lens and irrigation during the procedure) and its connecting tube at least daily. Some organizations recommend more frequent exchange of water bottles and tubing. Sterile water should be used to fill the water bottle.

Maintain a log for each procedure indicating the patient’s name and medical record number (if available), the procedure, and the serial number or other identifier of the endoscope (and AER, if used) to assist in an outbreak investigation.

Much of this information is derived directly and presented verbatim from the: Multisociety Guideline on Reprocessing Flexible Gastrointestinal Endoscopes: 2011 A copy has been provided to you for future reference.