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Using Low-Heat Decontamination to Allow N95 and PPE Reuse During the COVID-19 Pandemic
- Amy Kressel, Katie Swafford, DJ Shannon, Rachel Cathey, Jamie R. Fryar, Matthew E. Royal, Ryan Noyes
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- Journal:
- Antimicrobial Stewardship & Healthcare Epidemiology / Volume 1 / Issue S1 / July 2021
- Published online by Cambridge University Press:
- 29 July 2021, pp. s61-s62
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Background: US healthcare facilities experienced significant personal protective equipment (PPE) shortages, including N95 masks, in the spring and summer of 2020. The Centers for Disease Control and Prevention issued guidance for extended use, reprocessing, and reuse of N95s. Eskenazi Health (EH) implemented a program to reprocess N95s and other PPE on-site using low-heat decontamination (LHD). EH considered large-scale and small-scale ultraviolet (UV), hydrogen peroxide vapor, and LHD for on-site reprocessing of N95s. All of these methods allowed up to 3 reprocessing cycles according to most literature available at the time. However, each method differed in feasibility and acceptability to staff. EH chose to implement LHD based on both considerations. Methods: Numerous small-group meetings were held in April 2020 to determine the feasibility and acceptability of N95 reprocessing methods. Staff wanted a method that was easy for the end user, had quick turnaround, and allowed them to retrieve their own N95s. They favored a method that could be used for all PPE. EH had deployed numerous small UV machines that individuals could use for N95s. The UV machines could not be scaled up easily. To scale up, a multidisciplinary team comprising infection prevention, biomedical engineering, and sterile processing representatives reviewed available methods and implemented LHD. Biomedical engineers determined that existing blanket warmers could be reprogrammed and repurposed for low-heat decontamination. Food warmers were also available but were not needed. Biomedical engineers reprogrammed the blanket warmers to 70°C and developed a wicking system using a towel and water tray to maintain humidity; decontamination took 30 minutes. Testing runs determined that both N95s and eye protection tolerated LHD without apparent damage. Infection prevention staff developed a workflow in which staff deposited all PPE in a paper bag; the PPE bag was centrally reprocessed, marked (Figure 1), and returned to designated locations (Figure 2) for staff to retrieve their original PPE. Sterile processing staff facilitated the reprocessing workflow, and elective surgeries were canceled during the COVID-19 surge. Results: From April 20, 2020, to July 19, 2020, 7,512 units were decontaminated with LHD. If each N95 was sterilized thrice (4 uses per N95), then LHD reduced the need to purchase 22,536 N95s. Restarting elective surgeries decreased staff and support from sterile processing; the space was needed for other purposes; and N95 availability increased. All of these factors led to the discontinuation of LHD. Conclusions: LHD enables reprocessing of N95s and other PPE using existing assets. LHD is advantageous because of scalability and the capacity to provide staff with their own reprocessed PPE.
Funding: No
Disclosures: None
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Risk to Hospitals During a Community Hepatitis A Outbreak: Flipping the Perspective
- Amy Beth Kressel, Katie Swafford
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- Journal:
- Infection Control & Hospital Epidemiology / Volume 41 / Issue S1 / October 2020
- Published online by Cambridge University Press:
- 02 November 2020, pp. s378-s379
- Print publication:
- October 2020
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Background: In February 2019, in the context of a nationwide community-based hepatitis A (HAV) outbreak, Eskenazi Health (EH), an acute-care hospital in Indianapolis, Indiana, identified a healthcare worker (HCW) with HAV who had potentially exposed patients via medicine administration. Objective: We began an investigation and mitigation plan to determine the source of the HAV and the risk to patients. Methods: The investigation and mitigation consisted of 6 measures. (1) We searched the electronic medical record (EMR) tracer report to determine whether any of the HCW’s patients had HAV during the incubation period (15–50 days prior to diagnosis) or were potentially exposed during the infectious period (0–14 days prior to diagnosis). 2. We searched the EMR and CHIRP (Indiana’s electronic vaccine database) for potentially exposed patients to determine HAV immunity or HAV vaccination (HAVx). (3) We contacted potentially exposed patients. (4) We communicated with public health partners. (5) We investiged other potential exposures. (6) We communicated with employees regarding free HAVx and the community HAV outbreak via e-mail newsletters (reaching almost 6,000 unique addresses) and posts on our internal website. Results: The HCW had not provided care for a patient with diagnosed HAV during the incubation period. The HCW had provided care for 14 patients during the infectious period. No potentially exposed patient had evidence of HAV immunity or HAVx in EMR or CHIRP. We initiated communication to all 14 patients or their surrogates regarding the potential exposure, symptoms of HAV, testing, and HAVx. We could confirm HAV testing for only 1 of 14 patients, and the result was negative. None of the 14 patients developed HAV. Public health partners confirmed notification of the HCW case. No further information about the HCW’s HAV source was determined. The HCW did not share community food at work. No workplace source of HAV was identified. HAVx dispensed at the pharmacy increased after communication about availability: December 2018–February 2019, 4 HAVx dispensed and March–May 2019, 82 HAVx dispensed. Conclusions: Traditionally, hospitals view infection risk in terms of HCWs acquiring infections from or spreading infections among patients. Viewed this way, the Indiana HAV community outbreak, although serious for the community, did not appear to be a threat to the hospital: HAV acquisition in hospitals has been rare, which is supported by our results. However, this episode demonstrates that the traditional view needs to be flipped: HCWs can bring community-acquired HAV into the hospital. Nudges can quickly increase HAVx uptake among HCWs.
Funding: None
Disclosures: None