scholarly journals Effective disinfecting of protective devices used in the course of treating SARS-CoV2–positive patients

2021 ◽  
pp. 175717742110333
Author(s):  
Moarie Grace Tan ◽  
Tang Gui Feng ◽  
Lim Teck Liang ◽  
Sabrina BL Koh ◽  
Ong Biauw Chi ◽  
...  

Background: Powered Air-Purifying Respirator (PAPR) was widely used in Sengkang General Hospital (SKH) during the SARS-CoV-2 outbreak. Ensuring a sustained supply of clean and reusable PAPR masks for frontline medical team is an immediate challenge. The Central Sterile Supplies Unit (CSSU) adopts existing disinfection methods and technology for the reprocessing of reusable personal protective equipment (PPE) such as PAPR masks and goggles. Objective: To determine an effective disinfecting method for protective devices used in the course of treating SARS-CoV2–positive patients. Method: A comparison on surface disinfection and modified thermal disinfection outcome was conducted on 30 PAPR masks through detecting the presence of adenosine triphosphate (ATP) by swab following both disinfecting methods. Results: The modified thermal cycles emerged as the recommended disinfection method. Discussion: The outcome of this study has enhanced understanding on the risk imposed on frontline healthcare personnel who perform surface disinfecting on masks for reuse during the work shift. Leveraging on the current expertise from existing instrument logistics, CSSU takes charge of the processing and stock management of SKH’s PAPR masks. An additional workflow is needed to establish reprocessing methods for other reusable PPEs such as face shields or overalls.

2020 ◽  
pp. 153537022097781
Author(s):  
Douglas J Perkins ◽  
Robert A Nofchissey ◽  
Chunyan Ye ◽  
Nathan Donart ◽  
Alison Kell ◽  
...  

The ongoing pandemic of the novel severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) has placed a substantial strain on the supply of personal protective equipment, particularly the availability of N95 respirators for frontline healthcare personnel. These shortages have led to the creation of protocols to disinfect and reuse potentially contaminated personal protective equipment. A simple and inexpensive decontamination procedure that does not rely on the use of consumable supplies is dry heat incubation. Although reprocessing with this method has been shown to maintain the integrity of N95 respirators after multiple decontamination procedures, information on the ability of dry heat incubation to inactivate SARS-CoV-2 is largely unreported. Here, we show that dry heat incubation does not consistently inactivate SARS-CoV-2-contaminated N95 respirators, and that variation in experimental conditions can dramatically affect viability of the virus. Furthermore, we show that SARS-CoV-2 can survive on N95 respirators that remain at room temperature for at least five days. Collectively, our findings demonstrate that dry heat incubation procedures and ambient temperature for five days are not viable methods for inactivating SARS-CoV-2 on N95 respirators for potential reuse. We recommend that decontamination procedures being considered for the reuse of N95 respirators be validated at each individual site and that validation of the process must be thoroughly conducted using a defined protocol.


2018 ◽  
Vol 23 (3) ◽  
pp. 73-79 ◽  
Author(s):  
Camila Gonçalves Jezini Monteiro ◽  
Mariana Martins e Martins ◽  
Adriana de Alcantara Cury-Saramago ◽  
Henry Pinheiro Teixeira

ABSTRACT Objective: This cross-sectional observational study was designed to assess the biosafety conducts adopted by orthodontists, and possible differences regarding training time. Methods: Both the application of methods for sterilization/disinfection of instruments and materials, and the use of personal protective equipment (PPE) were collected through questionnaires via e-mail. Results: The questionnaires were answered by 90 orthodontists with a mean age of 37.19 ± 9.08 years and mean training time of 13.52 ± 6.84 years. Regarding orthodontic pliers, 63.23% use an autoclave, except 1 who does not perform any procedure. All participants use autoclave to sterilize instruments, and 95.6% of respondents perform cleaning with chemicals prior to sterilization. Most of them (65.56%) use an autoclave to sterilize orthodontic bands, with some still associating disinfection methods, while few (18.89%) do nothing at all. There was a high incidence of the answer “nothing” for the methods used for elastic, accessories, bandages, metal springs, and arches. All respondents use mask and gloves in attendance, 78.92% use aprons, 58.92% use protective goggles, and 50.01% use cap. Training time significantly influenced (p = 0.003) only the use of glutaraldehyde for sterilization/disinfection of pliers. Conclusions: The sterilization and cleaning of pliers, instruments, and bands, besides the use of PPE, received more uniform and positive responses, while other items suggest disagreements and possible failures. Only orthodontists trained for more than 13 years choose using glutaraldehyde for pliers sterilization/disinfection, the only adopted method with a significant difference in relation to training time.


2020 ◽  
Vol 54 (4) ◽  
pp. 195-200
Author(s):  
Pembe Derin Oygar ◽  
Ayşe Büyükçam ◽  
Zümrüt Şahbudak Bal ◽  
Nazan Dalgıç ◽  
Şefika Elmas Bozdemir ◽  
...  

Objective: In the early stages of any epidemic caused by new emerging pathogens healthcare personnel is subject to a great risk. Pandemic caused by SARS-CoV-2, proved to be no exception. Many healthcare workers died in the early stages of pandemic due to inadequate precautions and insufficient protection. It is essential to protect and maintain the safety of healthcare personnel for the confinement of pandemic as well as continuity of qualified healthcare services which is already under strain. Educating healthcare personnel on appropiate use of personal protective equipment (PPE) is as essential as procuring them. Material and Methods: A survey is conducted on 4927 healthcare personnel working solely with pediatric patients from 32 different centers. Education given on PPE usage were questioned and analyzed depending on age, sex, occupation and region. Results: Among four thousand nine hundred twelve healthcare personnel from 32 different centers 91% (n= 4457) received education on PPE usage. Of those who received education only 36% was given both theoretical and applied education. Although there was no differences among different occupation groups, receiving education depended on regions. Conclusion: It is essential to educate healthcare personnel appropiately nationwidely for the continuity of qualified healthcare services during the pandemic.


2015 ◽  
Vol 2 (suppl_1) ◽  
Author(s):  
Amrita John ◽  
Myreen Tomas ◽  
Jennifer Cadnum ◽  
Thriveen S.C. Mana ◽  
Annette Jencson ◽  
...  

Author(s):  
Lina Yuliana

<p>Healthcare Associated Infections (HAIs) is one of the risks for nurses in the hospital. Several diseases related to the HAIs, such as HIV and hepatitis. The level of compliance behavior in using PPE is one of the solutions in controlling the hazards caused by illnesses and injuries (accident). Hospital X is one of the general hospitals in Surabaya. Accident rates for patient's body fluids and needle stick injury are 51.1% and 46.7%.<strong></strong></p><p><strong>Aims:</strong> This study was aimed to analyze the correlated factor with the  level of   compliance behavior in using personal protective equipment (PPE) on nurses at inpatient installation.<strong> </strong></p><strong>Methodology and results:</strong> This research was a quantitative method with cross sectional design and observational study. The total sample technique was used to get sample (n = 29). The result of this study is the correlation coefficient of employment status (r = 0.340), working shift (r = 0.446), knowledge (r= 0,394), Attitude (r= 0,215 ). From the result of correlation test, that is shown the work shift is stronger correlation than knowledge with the level of compliance behavior. From the result of regression test simultanly, that is showing the variables of working shift and knowledge were significant values. Then, the value of Pseudo R-Square, the variables of working shift andd knowledge is about 46,9%.. <strong>Conclusion: </strong>Work shift and knowledge have a correlation to the level of compliance behavior in using PPE, both in bivariate and multivariate test.


2017 ◽  
Vol 39 (1) ◽  
pp. 97-100 ◽  
Author(s):  
Thriveen S. C. Mana ◽  
Myreen E. Tomas ◽  
Jennifer L. Cadnum ◽  
Annette L. Jencson ◽  
Christina T. Piedrahita ◽  
...  

In a randomized trial, a gown designed to allow easy removal at the neck and with increased skin coverage and snugness of fit at the wrist significantly reduced contamination of personnel during personal protective equipment (PPE) removal. Our results suggest that simple modifications of PPE can reduce contamination of personnel.Infect Control Hosp Epidemiol 2018;39:97–100


2016 ◽  
Vol 37 (6) ◽  
pp. 711-713 ◽  
Author(s):  
Myreen E. Tomas ◽  
Jennifer L. Cadnum ◽  
Thriveen S.C. Mana ◽  
Annette L. Jencson ◽  
Sreelatha Koganti ◽  
...  

In an experimental study, the frequency of contamination of healthcare personnel during removal of contaminated personal protective equipment (PPE) was similar for bacteriophage MS2 and a novel reflective marker visualized using flash photography. The reflective marker could be a useful tool to visualize and document personnel contamination during PPE removal.Infect Control Hosp Epidemiol 2016;37:711–713


2019 ◽  
Vol 40 (11) ◽  
pp. 1278-1280 ◽  
Author(s):  
Zeina Hajar ◽  
Thriveen S. C. Mana ◽  
Myreen E. Tomas ◽  
Heba Alhmidi ◽  
Brigid M. Wilson ◽  
...  

AbstractIn a crossover trial, a gown designed to increase skin coverage at the hands and wrists significantly reduced contamination of personnel during personal protective equipment (PPE) removal, and education on donning and doffing technique further reduced contamination. Simple modifications of PPE and education can reduce contamination during PPE removal.


2019 ◽  
Vol 69 (Supplement_3) ◽  
pp. S199-S205 ◽  
Author(s):  
Frank A Drews ◽  
Diane Mulvey ◽  
Kristina Stratford ◽  
Matthew H Samore ◽  
Jeanmarie Mayer

Abstract Background In healthcare, the goal of personal protective equipment (PPE) is to protect healthcare personnel (HCP) and patients from body fluids and infectious organisms via contact, droplet, or airborne transmission. The critical importance of using PPE properly is highlighted by 2 potentially fatal viral infections, severe acute respiratory syndrome–associated coronavirus and Ebola virus, where HCP became infected while caring for patients due to errors in the use of PPE. However, PPE in dealing with less dangerous, but highly infectious organisms is important as well. This work proposes a framework to test and evaluate PPE with a focus on gown design. Methods An observational study identified issues with potential for contamination related to gown use. After redesigning the existing gown, a high-fidelity patient simulator study with 40 HCP as participants evaluated the gown redesign using 2 commonly performed tasks. Variables of interest were nonadherence to procedural standards, use problems with the gown during task performance, and usability and cognitive task load ratings of the standard and redesigned gowns. Results While no differences were found in terms of nonadherence and use problems between the current and the redesigned gown, differences in usability and task load ratings suggested that the redesigned gown is perceived more favorably by HCP. Conclusions This work proposes a framework to guide the evaluation of PPE. The results suggest that the current design of the PPE gown can be improved in usability and user satisfaction. Although our data did not find an increase in adherence to protocol when using the redesigned gown, it is likely that higher usability and lower task load could result in higher adherence over longer periods of use.


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