1
|
Ofstead CL, Hopkins KM, Preston AL, James CY, Holdsworth JE, Smart AG, Lamb LA, Love KL. Fluid retention in endoscopes: A real-world study on drying effectiveness. Am J Infect Control 2024; 52:635-643. [PMID: 38408542 DOI: 10.1016/j.ajic.2024.02.015] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2024] [Revised: 02/21/2024] [Accepted: 02/22/2024] [Indexed: 02/28/2024]
Abstract
BACKGROUND Outbreaks linked to inadequate endoscope drying have infected numerous patients, and current standards and guidelines recommend at least 10 minutes of forced air for drying channels. This study evaluated a new forced-air drying system (FADS) for endoscopes. METHODS Drying was assessed using droplet detection cards; visual inspection of air/water connectors, suction connectors, and distal ends; and borescope examinations of endoscope interiors. Assessments were performed after automated endoscope reprocessor (AER) alcohol flush and air purge cycles and after 10-minute FADS cycles. RESULTS Researchers evaluated drying during encounters with 22 gastroscopes and 20 colonoscopes. After default AER alcohol and air purge cycles, 100% (42/42) of endoscopes were still wet. Substantial fluid emerged from distal ends during the first 15 seconds of the FADS cycle, and droplets also emerged from air/water and suction connectors. Following FADS cycle completion, 100% (42/42) were dry, with no retained fluid detected by any of the assessment methods. CONCLUSIONS Multiple endoscope ports and channels remained wet after AER cycles intended to aid in drying but were dry after the FADS cycle. This study reinforced the need to evaluate the effectiveness of current drying practices and illustrated the use of practical tools in a real-world setting.
Collapse
Affiliation(s)
- Cori L Ofstead
- Ofstead & Associates, Inc., Research Department, Bloomington, MN.
| | | | - Aaron L Preston
- Emory University Hospital Midtown, Infection Prevention Department, Atlanta, GA
| | - Charesse Y James
- Emory University Hospital Midtown, Endoscopy Department, Atlanta, GA
| | - Jill E Holdsworth
- Emory University Hospital Midtown, Infection Prevention Department, Atlanta, GA
| | - Abigail G Smart
- Ofstead & Associates, Inc., Research Department, Bloomington, MN
| | - Larry A Lamb
- Ofstead & Associates, Inc., Research Department, Bloomington, MN
| | - Kari L Love
- Emory Healthcare, Infection Prevention Department, Atlanta, GA
| |
Collapse
|
2
|
Prata F, Cacciatore L, Salerno A, Tedesco F, Ragusa A, Basile S, Iannuzzi A, Testa A, Raso G, D’Addurno G, Fantozzi M, Ricci M, Minore A, Civitella A, Scarpa RM, Papalia R. Urinary Tract Infection Predictors in Patients Undergoing Retrograde IntraRenal Surgery for Renal Stones: Does the Instrument Make the Difference? J Clin Med 2024; 13:2758. [PMID: 38792300 PMCID: PMC11122071 DOI: 10.3390/jcm13102758] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/29/2024] [Revised: 05/03/2024] [Accepted: 05/05/2024] [Indexed: 05/26/2024] Open
Abstract
Background: Retrograde intrarenal surgery (RIRS) using flexible ureterorenoscopes is a cornerstone approach for renal stone removal, yet it carries a significant risk of postoperative urinary tract infection (UTI). With the emergence of single-use ureterorenoscopes, there is growing interest in their potential to mitigate this risk. This study aimed to compare the postoperative infection rates between single-use and multi-use ureterorenoscopes in RIRS procedures and to identify predictors of postoperative UTI. Methods: Data were collected from 112 consecutive patients who underwent RIRS for renal stones between March 2022 and September 2023. Peri-operative variables including age, gender, body mass index (BMI), stone size, stone location, type of ureterorenoscope, Hounsfield Units (HU), pre-operative hydronephrosis, laboratory analysis, and operative time were evaluated. Univariate and multivariate logistic regression analyses were performed to assess the predictors of postoperative UTI. Results: Of the cohort, 77 surgeries (68.7%) utilized multi-use ureterorenoscopes, while 35 (31.3%) utilized single-use devices. Stone diameter, number of stones, type of ureterorenoscope, and operative time were significant predictors of postoperative UTI in the univariate analysis. Multivariable logistic regression showed that operative time (OR, 1.3; 95% CI, 0.55-0.99; p = 0.03) and type of ureterorenoscope (multi-use vs. single-use) (OR, 1.14; 95% CI, 1.08-1.2; p < 0.001) were independent predictors of postoperative UTI. Conclusions: In conclusion, this study highlights that multi-use ureterorenoscopes and prolonged operative time are associated with an increased risk of postoperative UTI in RIRS procedures. Careful pre-operative evaluation and meticulous patient selection are essential to minimize the occurrence of postoperative UTIs and optimize patient outcomes in RIRS for renal stones.
Collapse
Affiliation(s)
| | - Loris Cacciatore
- Department of Urology, Fondazione Policlinico Universitario Campus Bio-Medico di Roma, 00128 Rome, Italy; (F.P.); (A.S.); (F.T.); (A.R.); (S.B.); (A.I.); (A.T.); (G.R.); (G.D.); (M.F.); (M.R.); (A.M.); (A.C.); (R.M.S.); (R.P.)
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | |
Collapse
|
3
|
Anderson S, Patterson K, Skolarikos A, Somani B, Bolton DM, Davis NF. Perspectives on technology: to use or to reuse, that is the endoscopic question-a systematic review of single-use endoscopes. BJU Int 2024; 133:14-24. [PMID: 37838621 DOI: 10.1111/bju.16206] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/16/2023]
Abstract
OBJECTIVE To compare clinical outcomes of single-use endoscopes with those of reusable endoscopes to better define their role within urology. METHODS A systematic search of electronic databases was performed. All studies comparing the clinical outcomes of participants undergoing urological procedures with single-use endoscopes to those of participants treated with reusable endoscopes were included. Results are reported in accordance with the Preferred Reporting Items for Systematic Reviews and Meta-Analyses (PRISMA) 2020 statement. RESULTS Twenty-one studies in 3943 participants were identified. Six different single-use flexible ureteroscopes and two different single-use flexible cystoscopes were assessed. There were no differences in mean postoperative infection rates (4.0% vs 4.4%; P = 0.87) or overall complication rates (11.5% vs 11.9%; P = 0.88) between single-use and reusable endoscopes. For patients undergoing flexible ureteroscopy there were no differences in operating time (mean difference -0.05 min; P = 0.96), length of hospital stay (LOS; mean difference 0.06 days; P = 0.18) or stone-free rate (SFR; 74% vs 74.3%; P = 0.54) between the single-use and reusable flexible ureteroscope groups. CONCLUSION This study is the largest to compare the clinical outcomes of single-use endoscopes to those of reusable endoscopes within urology, and demonstrated no difference in LOS, complication rate or SFR, with a shorter operating time associated with single-use flexible cystoscope use. It also highlights that the cost efficiency and environmental impact of single-use endoscopes is largely dependent on the caseload and reprocessing facilities available within a given institution. Urologists can therefore feel confident that whether they choose to 'use' or to 'reuse' based on the financial and environmental implications, they can do so without negatively impacting patient outcomes.
Collapse
Affiliation(s)
- Steven Anderson
- Department of Urology, Beaumont Hospital, Dublin, Ireland
- Department of Surgical Affairs, RCSI University of Medicine and Health Sciences, Dublin, Ireland
| | | | - Andreas Skolarikos
- Department of Urology, National and Kapodistrian University of Athens, Athens, Greece
| | - Bhaskar Somani
- Department of Urology, University Hospital Southampton, Southampton, UK
| | - Damien M Bolton
- Department of Urology, Austin Hospital, Melbourne, VIC, Australia
| | - Niall F Davis
- Department of Urology, Beaumont Hospital, Dublin, Ireland
- Department of Surgical Affairs, RCSI University of Medicine and Health Sciences, Dublin, Ireland
| |
Collapse
|
4
|
Veater JB, Jones-Manning C, Mellon J, Collins E, Jenkins DR. Pulling the plug on a pseudomonas outbreak: ancillary equipment as vectors of infection. J Hosp Infect 2023; 140:110-116. [PMID: 37562595 DOI: 10.1016/j.jhin.2023.08.003] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/31/2023] [Revised: 07/31/2023] [Accepted: 08/03/2023] [Indexed: 08/12/2023]
Abstract
OBJECTIVES Outbreaks of infection related to flexible endoscopes are well described. However, flexible endoscopy also requires the use of ancillary equipment such as irrigation plugs. These are potential vectors of infection but are infrequently highlighted in the literature. This paper reports a cystoscopy-associated outbreak of Pseudomonas aeruginosa from contaminated irrigation plugs in a UK tertiary care centre. METHODS Laboratory, clinical and decontamination unit records were reviewed, and audits of the decontamination unit were performed. Flexible cystoscopes and irrigation plugs were assessed for contamination. Retrospective and prospective case finding was performed utilizing the microbiology laboratory information management system. Available P. aeruginosa isolates underwent variable nucleotide tandem repeat (VNTR) typing. Confirmed cases were defined as P. aeruginosa infection with an identical VNTR profile to an outbreak strain. RESULTS Three strains of P. aeruginosa were isolated from five irrigation plugs but none of the flexible cystoscopes. No acquired resistance mechanisms were detected. Fifteen confirmed infections occurred, including bacteraemia, septic arthritis and urinary tract infection. While failure of decontamination likely occurred because the plugs were not dismantled prior to reprocessing, the manufacturer's reprocessing instructions were also incompatible with standard UK practice. The Medicines and Healthcare Products Regulatory Agency was informed. A field safety notice was issued, and the manufacturer issued updated reprocessing instructions. CONCLUSIONS Ancillary equipment can represent an important vector for infection, and should be considered during outbreak investigations. Users should review the manufacturer's instructions for reprocessing ancillary equipment to ensure that they are compatible with available procedures.
Collapse
Affiliation(s)
- J B Veater
- Clinical Microbiology, University Hospitals of Leicester NHS Trust, Leicester, UK.
| | - C Jones-Manning
- Intensive Care, Theatres, Anaesthetics, Pain & Sleep, University Hospitals of Leicester NHS Trust, Leicester, UK
| | - J Mellon
- Department of Urology, University Hospitals of Leicester NHS Trust, Leicester, UK
| | - E Collins
- Infection Prevention, University Hospitals of Leicester NHS Trust, Leicester, UK
| | - D R Jenkins
- Clinical Microbiology, University Hospitals of Leicester NHS Trust, Leicester, UK
| |
Collapse
|
5
|
Zhang F, Xu J, Liang H. Single-use flexible ureteroscope provides an alternative treatment for upper urinary calculi: A systematic review and meta-analysis. Medicine (Baltimore) 2023; 102:e34829. [PMID: 37682159 PMCID: PMC10489268 DOI: 10.1097/md.0000000000034829] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/28/2023] [Accepted: 07/28/2023] [Indexed: 09/09/2023] Open
Abstract
OBJECTIVE This study aimed to evaluate the efficacy and safety of single-use flexible ureteroscope and reusable flexible ureteroscope for upper urinary calculi. METHODS We conducted a meta-analysis that had a comprehensive search in PubMed, Embase, Cochrane Library, Web of Science, and WanFang databases from 2000/01/01 to 2023/06/01 for available randomized controlled trials. "Ureteroscopes," "Flexible Ureteroscope," "Single-use," and "Upper Urinary Calculi" were used as the major keywords for the search. Review Manager 5.0 and STATA 12.0 were used for calculation and statistical analysis. RESULTS A total of 9 randomized controlled trials comprising 1293 participants were included in our meta-analysis. Single use-FURS had better results in stone-free rate (relative risk: 1.08, 95% confidence interval: [1.02, 1.15], P = .02) and postoperative infection (relative risk: 0.41, 95% confidence interval: [0.23, 0.72], P = .002). Operative time, hemoglobin decline, postoperative serum creatinine, postoperative hospital stay, and overall complication after surgery showed no significant differences between the 2 procedures (P > .05). CONCLUSION Single-use flexible ureteroscope provides a valuable alternative to reusable flexible ureteroscope in upper urinary calculi with its better visual field performance and manipulation, opening a new technological revolution for kidney stone treatment.
Collapse
Affiliation(s)
- Fulin Zhang
- Department of Urology, People’s Hospital of Longhua, Southern Medical University, Shenzhen, China
| | - Jinbin Xu
- Department of Urology, Guangzhou, China
| | - Hui Liang
- Department of Urology, People’s Hospital of Longhua, Southern Medical University, Shenzhen, China
| |
Collapse
|
6
|
Speth J. Guidelines in Practice: Processing Flexible Endoscopes. AORN J 2023; 118:169-178. [PMID: 37624056 DOI: 10.1002/aorn.13982] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/11/2023] [Accepted: 04/12/2023] [Indexed: 08/26/2023]
Abstract
Flexible endoscopes allow surgeons and proceduralists to view patients' internal organs through small incisions or natural orifices. These devices may be difficult to clean and dry adequately, and the formation of biofilm can further complicate effective cleaning. The updated AORN "Guideline for processing flexible endoscopes" provides perioperative personnel with evidence-based best practice recommendations on a variety of concepts associated with this topic. This article provides an overview of the guideline and discusses recommendations for point-of-use treatment, transport, cleaning (including verification and drying), and storage of flexible endoscopes. It also includes a scenario that illustrates the importance of adequately drying and storing flexible endoscopes. When processing flexible endoscopes, personnel should adhere to the endoscope and processing equipment manufacturers' instructions for use. Perioperative nurses should review the guideline in its entirety and implement recommendations in practice settings where flexible endoscopes are used.
Collapse
|
7
|
Ofstead CL, Smart AG, Hopkins KM, Lamb LA, Daniels FE, Berg DS. Improving mastery and retention of knowledge and complex skills among sterile processing professionals: A pilot study on borescope training and competency testing. Am J Infect Control 2023; 51:624-632. [PMID: 36907359 DOI: 10.1016/j.ajic.2023.03.002] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/03/2023] [Revised: 03/03/2023] [Accepted: 03/04/2023] [Indexed: 03/12/2023]
Abstract
BACKGROUND Healthcare is shifting toward minimally invasive procedures requiring increasingly complex instruments and sophisticated processing technologies. Effective training methods are needed to ensure sterile processing professionals acquire and retain essential skills. OBJECTIVE This study aimed to develop and evaluate a new training model that supports mastery and retention of complex key skills. METHODS The model was pilot-tested with training focused on visual inspection of endoscopes. Pre- and post-training tests were administered to enhance learning during a face-to-face workshop that interspersed lectures and hands-on practice, followed by structured homework, and an online booster session. Surveys assessed satisfaction and confidence levels. RESULTS Mean test scores for nine certified sterile processing employees increased significantly following the workshop (41% vs. 84%, p<0.001). After the workshop, all trainees identified actionable visible defects on patient-ready endoscopes in their facilities. Test scores remained high after two months (90%), and trainees reported higher technical confidence and satisfaction levels after training. CONCLUSIONS This study demonstrated effectiveness and clinical relevance of a new, evidence-based model for training sterile processing professionals that incorporated pre-testing, lectures, hands-on practice, a training booster, and post-testing to enhance learning. This model may be applicable to other complex skills necessary for infection prevention and patient safety.
Collapse
Affiliation(s)
| | | | | | | | - Frank E Daniels
- Virginia Commonwealth University Health System, Richmond, VA
| | - Damien S Berg
- Healthcare Sterile Processing Association, Chicago, IL
| |
Collapse
|
8
|
WGO Guideline-Endoscope Disinfection Update. J Clin Gastroenterol 2023; 57:1-9. [PMID: 36084165 DOI: 10.1097/mcg.0000000000001759] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/11/2022] [Accepted: 06/23/2022] [Indexed: 12/14/2022]
|
9
|
Ofstead CL, Smart AG, Hopkins KM, Wetzler HP. The utility of lighted magnification and borescopes for visual inspection of flexible endoscopes. Am J Infect Control 2023; 51:2-10. [PMID: 36075293 DOI: 10.1016/j.ajic.2022.08.026] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/24/2022] [Revised: 08/26/2022] [Accepted: 08/28/2022] [Indexed: 02/05/2023]
Abstract
INTRODUCTION Infections have been linked to damaged or contaminated endoscopes with visible defects. Endoscope processing standards and guidelines state endoscopes should be visually inspected every time they are used. This study evaluated a new visual inspection program using magnification and borescopes in an endoscopy department that had not previously utilized these tools. METHODS Site personnel were given visual inspection tools and training before systematically examining fully processed endoscopes twice during a 2-month period. A risk assessment protocol was used to determine whether endoscopes required recleaning, repair, or other action. Findings were documented using log sheets, photographs, and videotapes. RESULTS Visible damage and residue or debris were observed in 100% of 25 endoscopes at both assessments, and 76% required repair. Defects at baseline included scratches (88%); channel shredding or peeling (80%); adhesive band disintegration (80%); residual soil or debris (white 84%; black 68%; brown 40%; yellow/green 36%; and orange/red 8%); retained fluid (52%); and dents (40%). Findings were similar at follow-up. DISCUSSION/CONCLUSIONS Visual inspection with magnification and borescopes identified actionable defects that could interfere with processing effectiveness in 100% of endoscopes. Infection preventionists have a critical role to play in supporting processing personnel now that standards, guidelines, and manufacturer instructions recommend enhanced visual inspection of every endoscope, every time.
Collapse
|
10
|
Juliebø-Jones P, Keller EX, Tzelves L, Beisland C, Somani BK, Gjengstø P, Æsøy MS, Ulvik Ø. Paediatric kidney stone surgery: state-of-the-art review. Ther Adv Urol 2023; 15:17562872231159541. [PMID: 36950219 PMCID: PMC10026105 DOI: 10.1177/17562872231159541] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/07/2022] [Accepted: 02/07/2023] [Indexed: 03/24/2023] Open
Abstract
While urolithiasis in children is rare, the global incidence is rising, and the volume of minimally invasive surgeries being performed reflects this. There have been many developments in the technology, which have supported the advancement of these interventions. However, innovation of this kind has also resulted in wide-ranging practice patterns and debate regarding how they should be best implemented. This is in addition to the extra challenges faced when treating stone disease in children where the patient population often has a higher number of comorbidities and for example, the need to avoid risk such as ionising exposure is higher. The overall result is a number of challenges and controversies surrounding many facets of paediatric stone surgery such as imaging choice, follow-up and different treatment options, for example, medical expulsive therapy, shockwave lithotripsy, ureteroscopy, and percutaneous nephrolithotomy. This article provides an overview of the current status of paediatric stone surgery and discussion on the key topics of debate.
Collapse
Affiliation(s)
| | - Etienne Xavier Keller
- Department of Urology, University Hospital
Zurich, University of Zurich, Zurich, Switzerland EAU YAU Urolithiasis
Group, Arnhem, The Netherlands
| | - Lazaros Tzelves
- Second Department of Urology, National and
Kapodistrian University of Athens, Sismanogleio General Hospital, Athens,
Greece EAU YAU Urolithiasis Group, Arnhem, The Netherlands
| | - Christian Beisland
- Department of Urology, Haukeland University
Hospital, Bergen, NorwayDepartment of Clinical Medicine, University of
Bergen, Bergen, Norway
| | - Bhaskar K Somani
- Department of Urology, University Hospital
Southampton, Southampton, UK
| | - Peder Gjengstø
- Department of Urology, Haukeland University
Hospital, Bergen, Norway
| | | | - Øyvind Ulvik
- Haukeland University Hospital, Bergen,
NorwayDepartment of Clinical Medicine, University of Bergen, Bergen,
Norway
| |
Collapse
|
11
|
Wallace MM, Keck T, Dixon H, Yassin M. Borescope Examination and Microbial Culture Results of Endoscopes in a Tertiary Care Hospital Led to Changes in Storage Protocols to Improve Patient Safety. Am J Infect Control 2022; 51:361-366. [PMID: 36122631 DOI: 10.1016/j.ajic.2022.09.009] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/07/2022] [Revised: 09/06/2022] [Accepted: 09/08/2022] [Indexed: 11/15/2022]
Abstract
BACKGROUND Flexible endoscopes are highly versatile and useful medical instruments, and their proper reprocessing is critical to patient health and safety. The value of routine visual inspections and surveillance of endoscopes in a tertiary care hospital was assessed by performing borescope examinations and microbial sampling on respiratory, gastro-intestinal (GI), and urological endoscopes. METHODS A total of 42 endoscopes were cultured, and 36 endoscopes were examined with a borescope. The flush-brush-flush method was used to culture the endoscopes. Microbiologic sampling water was vortexed prior to being suctioned through a membrane filter device. The membrane was plated on a blood agar plate and incubated at 37°C for 48 hours. A 1.9-meter borescope with a 1.6mm diameter was used to perform borescope examinations in an antegrade and retrograde approach. RESULTS Positive microbial cultures were seen in 28% of bronchoscopes, 22% of GI endoscopes, and 30% of urological endoscopes. Only Gram-positive colonies were identified in endoscopes that had microbial growth. Borescope examinations revealed multiple abnormalities and damage including channel shredding, filamentous debris, water retention, discoloration, dents, and red particles. CONCLUSIONS Borescope examination and microbial sampling should be used routinely to assure endoscopic safety. Borescope examination enabled us to visualize structural damage, foreign material, and moisture within endoscopes. The structural damages and the particles found in endoscopes resulted in timely repair and discontinuation of this type of distal end protectors in our facility.
Collapse
Affiliation(s)
- Megan M Wallace
- Infectious Disease and Microbiology Department, Graduate School of Public Health, University of Pittsburgh, Pittsburgh, PA, United States
| | - Taylor Keck
- Department of Infection Control and Prevention, University of Pittsburgh Medical Center, Pittsburgh, PA, United States
| | - Heather Dixon
- Department of Infection Control and Prevention, University of Pittsburgh Medical Center, Pittsburgh, PA, United States
| | - Mohamed Yassin
- Infectious Disease and Microbiology Department, Graduate School of Public Health, University of Pittsburgh, Pittsburgh, PA, United States; Department of Infection Control and Prevention, University of Pittsburgh Medical Center, Pittsburgh, PA, United States.
| |
Collapse
|
12
|
Güler Y, Erbin A, Gozdas T. An outbreak of postoperative rapidly developing and multidrug-resistant Klebsiella pneumoniae urosepsis due to a contaminated ureteroscope. Folia Med (Plovdiv) 2022; 64:401-407. [PMID: 35856100 DOI: 10.3897/folmed.64.e62365] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/22/2020] [Accepted: 04/15/2021] [Indexed: 11/12/2022] Open
Abstract
INTRODUCTION Outbreaks caused by microorganisms contaminating the inside of rigid ureteroscopes are extremely rare. Some of these outbreaks, especially those caused by multidrug-resistant (MDR) infections, can cause serious problems, even death. Among these serious infections, we have no data about Klebsiellapneumoniae outbreaks caused by rigid ureteroscopes and their management and consequences.
Collapse
Affiliation(s)
| | - Akif Erbin
- Haseki Traning and Research Hospital, Istanbul, Turkey
| | | |
Collapse
|
13
|
Walker JT, Bak A, Marsden G, Spencer W, Griffiths H, Stanton GA, Williams C, White LJ, Ross E, Sjogren G, Bradley CW, Garvey M. Final rinse water quality for flexible endoscopy to minimise the risk of post-endoscopic infection. Report from Healthcare Infection Society Working Party. J Hosp Infect 2022; 124:79-96. [PMID: 35276281 DOI: 10.1016/j.jhin.2022.02.022] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/23/2021] [Accepted: 02/02/2022] [Indexed: 01/10/2023]
Affiliation(s)
- James T Walker
- Central Sterilising Club, UK; Healthcare Infection Society, London, UK
| | - Aggie Bak
- Healthcare Infection Society, London, UK.
| | | | - Wayne Spencer
- Authorising Engineer, Spencer Nickson Ltd, Frodsham, UK
| | - Helen Griffiths
- Decontamination and TSE advisor, British Society of Gastroenterology, London, UK
| | | | - Craig Williams
- Healthcare Infection Society, London, UK; Consultant Microbiologist, University Hospitals of Morecambe Bay, UK
| | - Leila J White
- Healthcare Infection Society, London, UK; Lancashire Teaching Hospitals NHS Foundation Trusts, UK
| | - Elaine Ross
- Healthcare Infection Society, London, UK; Infection Prevention Society, Seafield, UK
| | - Geoff Sjogren
- Western Sussex Hospitals NHS Foundation Trust (retired), UK
| | - Christina W Bradley
- Healthcare Infection Society, London, UK; University Hospitals Birmingham NHS Foundation Trust, UK
| | - Mark Garvey
- Healthcare Infection Society, London, UK; University Hospitals Birmingham NHS Foundation Trust, UK
| |
Collapse
|
14
|
Ofstead CL, Hopkins KM, Smart AG, Brewer MK. Droplet dispersal in decontamination areas of instrument reprocessing suites. Am J Infect Control 2022; 50:126-132. [PMID: 34865859 DOI: 10.1016/j.ajic.2021.10.023] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/17/2021] [Revised: 10/14/2021] [Accepted: 10/16/2021] [Indexed: 12/23/2022]
Abstract
BACKGROUND Personnel working in sterile processing or endoscope reprocessing departments are at high risk of exposure to tissue, blood, and patient fluids when decontaminating reusable medical instruments and equipment. The effectiveness of protective measures for reprocessing personnel has not yet been systematically evaluated in real-world settings. OBJECTIVE This pilot project aimed to identify reprocessing activities that generate splashes, determine how far droplets can travel in decontamination areas, and assess personal protective equipment exposure during routine activities. METHODS Moisture-detection paper was affixed to environmental surfaces and personal protective equipment in a sterile processing department. Droplet dispersal was assessed after personnel simulated performance of routine reprocessing tasks. RESULTS Visible droplets were generated during every reprocessing activity except running the sonication sink. Droplets traveled at least 3 feet when filling a sink, brushing a ureteroscope, and using a power sprayer to rinse a basin. Some activities dispersed droplets up to 5 feet from the sink. Personal protective equipment was splashed during most activities and did not prevent skin exposure even when properly donned and doffed. CONCLUSION This hypothesis-generating pilot project found that routine reprocessing activities generated substantial splashing, and currently recommended personal protective equipment did not adequately protect sterile processing personnel from exposure.
Collapse
|
15
|
Ofstead CL, Hopkins KM, Smart AG, Eiland JE, Wetzler HP, Bechis SK. Reprocessing effectiveness for flexible ureteroscopes: A critical look at the evidence. Urology 2022; 164:25-32. [DOI: 10.1016/j.urology.2022.01.033] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/01/2021] [Revised: 01/12/2022] [Accepted: 01/23/2022] [Indexed: 10/19/2022]
|
16
|
Josephs-Spaulding J, Singh OV. Medical Device Sterilization and Reprocessing in the Era of Multidrug-Resistant (MDR) Bacteria: Issues and Regulatory Concepts. FRONTIERS IN MEDICAL TECHNOLOGY 2022; 2:587352. [PMID: 35047882 PMCID: PMC8757868 DOI: 10.3389/fmedt.2020.587352] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/25/2020] [Accepted: 11/10/2020] [Indexed: 12/20/2022] Open
Abstract
The emergence of multidrug-resistant (MDR) bacteria threatens humans in various health sectors, including medical devices. Since formal classifications for medical device sterilization and disinfection were established in the 1970's, microbial adaptation under adverse environmental conditions has evolved rapidly. MDR microbial biofilms that adhere to medical devices and recurrently infect patients pose a significant threat in hospitals. Therefore, it is essential to mitigate the risk associated with MDR outbreaks by establishing novel recommendations for medical device sterilization, in a world of MDR. MDR pathogens typically thrive on devices with flexible accessories, which are easily contaminated with biofilms due to previous patient use and faulty sterilization or reprocessing procedures. To prevent danger to immunocompromised individuals, there is a need to regulate the classification of reprocessed medical device sterilization. This article aims to assess the risks of improper sterilization of medical devices in the era of MDR when sterilization procedures for critical medical devices are not followed to standard. Further, we discuss key regulatory recommendations for consistent sterilization of critical medical devices in contrast to the risks of disinfection reusable medical devices.
Collapse
Affiliation(s)
- Jonathan Josephs-Spaulding
- Department of Environmental Health and Engineering, Johns Hopkins Bloomberg School of Public Health, Baltimore, MD, United States
| | - Om V Singh
- Advance Academic Program, The Johns Hopkins University, Washington, DC, United States.,Technology Science Group (TSG) Consulting Inc., A Science Group Company, Washington, DC, United States
| |
Collapse
|
17
|
Ofstead CL, Hopkins KM, Eiland JE. Borescope inspection of endoscope working channels: Why and how? Endosc Int Open 2022; 10:E109-E111. [PMID: 35047340 PMCID: PMC8759935 DOI: 10.1055/a-1512-2813] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/31/2022] Open
Affiliation(s)
- Cori L. Ofstead
- Ofstead and Associates, Inc., Saint Paul, Minnesota, United States
| | | | - John E. Eiland
- Ofstead and Associates, Inc., Saint Paul, Minnesota, United States
| |
Collapse
|
18
|
A nationwide survey on the effectiveness of training on endoscope reprocessing within the national cancer screening program in Korea. Am J Infect Control 2021; 49:1031-1035. [PMID: 33582222 DOI: 10.1016/j.ajic.2021.02.005] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/06/2020] [Revised: 02/03/2021] [Accepted: 02/09/2021] [Indexed: 11/24/2022]
Abstract
BACKGROUND The National Cancer Center has provided nationwide endoscope reprocessing training to hospitals annually performing national gastric and colorectal cancer screening in Korea since 2012. This study aimed to evaluate the adherence of past participants of endoscope reprocessing training to the reprocessing guidelines and their satisfaction with the current training. METHODS Training on endoscope reprocessing was implemented 18 times across the country, from June 2019 to November 2019. Immediately after the training, participants filled a paper questionnaire related to reprocessing practices and satisfaction with the current training anonymously. RESULTS A total of 1,132 participants trained responded to the survey (response rate, 95.4%). Of the study participants, 45.7% participated in the past endoscope reprocessing training, and 94.6% of them answered that they have adhered to the endoscope reprocessing guidelines. Experience of participation in endoscope reprocessing training was significantly associated with practical adherence to endoscope reprocessing guidelines (aOR, 6.55; 95% CI, 3.93 to 10.91). And, 91% of study participants were satisfied with the current endoscope reprocessing training. CONCLUSIONS The current training on endoscope reprocessing provided at the national level could help ensure adherence to reprocessing guidelines, resulting in obtaining quality control for endoscopy. However, about half of practitioners currently working in endoscopy units had not received sufficient reprocessing training, and thus more training is needed for them.
Collapse
|
19
|
Eichel VM, Jabs JM, Unser S, Mutters NT, Scherrer M. Does the Reprocessing of Endoscopes Have to Take Place Immediately after Pre-Cleaning? A First Evaluation. Clin Endosc 2021; 54:526-533. [PMID: 34256556 PMCID: PMC8357578 DOI: 10.5946/ce.2020.238] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/27/2020] [Accepted: 01/10/2021] [Indexed: 01/17/2023] Open
Abstract
Background/Aims The recommendations on the time interval between pre-cleaning and reprocessing of endoscopes differ in international guidelines, with a low level of evidence. The aim of this study was to investigate the influence of postponing reprocessing on the reprocessing quality after pre-cleaning the flexible endoscopes.
Methods We reprocessed 124 standardized test tubes simulating endoscope channels after soiling and contamination and determined the reprocessing performance. In addition, we examined contaminated gastroscopes, colonoscopes, and bronchoscopes. The duration of interim storage after pre-cleaning was 16 h for 100 test tubes and up to 24 h for 18 endoscopes. We determined the residual protein content and germ load as markers for cleaning and disinfection performance. In addition, we determined biofilm formation by photometry of crystal violet staining.
Results All test tubes and flexible endoscopes showed residual protein content and germ load significantly below legally prescribed threshold values, independent of the interval between pre-cleaning and reprocessing.
Conclusions Our findings indicate that flexible endoscopes could be stored overnight after pre-cleaning without any influence on the quality of reprocessing. While ensuring patient safety, this could simplify logistical processes and enable cost savings.
Collapse
Affiliation(s)
- Vanessa M Eichel
- Section for Hospital Hygiene and Environmental Health, Center for Infectious Diseases, Heidelberg University Hospital, Im Neuenheimer Feld 324, Heidelberg, Germany
| | - Jonas M Jabs
- Section for Hospital Hygiene and Environmental Health, Center for Infectious Diseases, Heidelberg University Hospital, Im Neuenheimer Feld 324, Heidelberg, Germany.,Institute of Hygiene and Public Health, University Hospital Bonn, Venusberg-Campus 1, Bonn, Germany
| | - Samy Unser
- Section for Hospital Hygiene and Environmental Health, Center for Infectious Diseases, Heidelberg University Hospital, Im Neuenheimer Feld 324, Heidelberg, Germany
| | - Nico T Mutters
- Section for Hospital Hygiene and Environmental Health, Center for Infectious Diseases, Heidelberg University Hospital, Im Neuenheimer Feld 324, Heidelberg, Germany.,Institute of Hygiene and Public Health, University Hospital Bonn, Venusberg-Campus 1, Bonn, Germany
| | - Martin Scherrer
- Infection Control Engineering, Center for Infectious Diseases, Heidelberg University Hospital, Im Neuenheimer Feld 324, Heidelberg, Germany
| |
Collapse
|
20
|
Cho SJ. Endoscopes that Complete Pre-Cleaning may be Stored Overnight until Next Morning for the Subsequent Reprocessing. Clin Endosc 2021; 54:449-450. [PMID: 34233404 PMCID: PMC8357576 DOI: 10.5946/ce.2021.135] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/24/2021] [Accepted: 05/25/2021] [Indexed: 12/05/2022] Open
Affiliation(s)
- Soo-Jeong Cho
- Department of Internal Medicine and Liver Research Institute, Seoul National University Hospital, Seoul National University College of Medicine, Seoul, Korea
| |
Collapse
|
21
|
Ji X, Lu P, Hu Y, Xue J, Wu J, Zhang B, Zhang Y, Dong L, Lv H, Wang S. Function Characterization of Endogenous Plasmids in Cronobacter sakazakii and Identification of p-Coumaric Acid as Plasmid-Curing Agent. Front Microbiol 2021; 12:687243. [PMID: 34248908 PMCID: PMC8267800 DOI: 10.3389/fmicb.2021.687243] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/29/2021] [Accepted: 05/25/2021] [Indexed: 11/13/2022] Open
Abstract
Virulence traits and antibiotic resistance are frequently provided by genes located on plasmids. However, experimental verification of the functions of these genes is often lacking due to a lack of related experimental technology. In the present study, an integrated suicide vector was used to efficiently and specifically delete a bacterial endogenous plasmid in Cronobacter sakazakii. The pESA3 plasmid was removed from C. sakazakii BAA-894, and we confirmed that this plasmid contributes to the invasion and virulence of this strain. In addition, the pGW1 plasmid was expunged from C. sakazakii GZcsf-1, and we confirmed that this plasmid confers multidrug resistance. We further screened plasmid-curing agents and found that p-coumaric acid had a remarkable effect on the curing of pESA3 and pGW1 at sub-inhibitory concentrations. Our study investigated the contribution of endogenous plasmids pESA3 and pGW1 by constructing plasmid-cured strains using suicide vectors and suggested that p-coumaric acid can be a safe and effective plasmid-curing agent for C. sakazakii.
Collapse
Affiliation(s)
- Xuemeng Ji
- Tianjin Key Laboratory of Food Science and Health, School of Medicine, Nankai University, Tianjin, China
| | - Ping Lu
- Institute of Radiation Medicine, Chinese Academy of Medical Sciences and Peking Union Medical Collage, Tianjin, China
| | - Yaozhong Hu
- Tianjin Key Laboratory of Food Science and Health, School of Medicine, Nankai University, Tianjin, China
| | - Juan Xue
- Institute of Infection and Immunity, Taihe Hospital, Hubei University of Medicine, Shiyan, China
| | - Jing Wu
- Tianjin Key Laboratory of Food Science and Health, School of Medicine, Nankai University, Tianjin, China
| | - Bowei Zhang
- Tianjin Key Laboratory of Food Science and Health, School of Medicine, Nankai University, Tianjin, China
| | - Yan Zhang
- Tianjin Key Laboratory of Food Science and Health, School of Medicine, Nankai University, Tianjin, China
| | - Lu Dong
- Tianjin Key Laboratory of Food Science and Health, School of Medicine, Nankai University, Tianjin, China
| | - Huan Lv
- Tianjin Key Laboratory of Food Science and Health, School of Medicine, Nankai University, Tianjin, China
| | - Shuo Wang
- Tianjin Key Laboratory of Food Science and Health, School of Medicine, Nankai University, Tianjin, China
| |
Collapse
|
22
|
Bozzini G, Filippi B, Alriyalat S, Calori A, Besana U, Mueller A, Pushkar D, Romero-Otero J, Pastore A, Sighinolfi MC, Micali S, Buizza C, Rocco B. Disposable versus Reusable Ureteroscopes: A Prospective Multicenter Randomized Comparison. Res Rep Urol 2021; 13:63-71. [PMID: 33604311 PMCID: PMC7882796 DOI: 10.2147/rru.s277049] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/28/2020] [Accepted: 01/12/2021] [Indexed: 12/12/2022] Open
Abstract
Purpose To compare reusable and disposable flexible ureteroscopes in terms of efficacy and safety for patients undergoing Retrograde Intrarenal Surgery (RIRS). Patients and Methods Patients with a renal stone eligible for RIRS were enrolled in this multicenter, randomized, clinical trial study. Patients were randomized into two groups: group A (90 patients) underwent RIRS with a reusable flexible ureteroscope and group B (90 patients) were treated with a disposable one. Results The patients’ demographics, stone features and pre-operative urine cultures were comparable between the groups. The Stone Free Rates (SFRs) were not significantly different (86.6% and 90.0% for group A and group B, respectively, p=0.11) and the mean cost for each procedure was comparable (2321 € in group A vs 2543 € in group B, p=0.09). However, the days of hospitalization and of antibiotic therapy were higher in group A (p ≤ 0.05). The overall complication rate in group A was 8.8% whilst in group B it was 3.3% (p ≤ 0.05); in particular, group A exhibited a greater number of major complications (Clavien score IIIa-V). The overall postoperative infection rate was 16.6% in group A and 3.3% in group B (p ≤ 0.05). Furthermore, none of the patients in group B developed urosepsis or had a positive blood culture, while 3 patients in group A did (p<0.05). Conclusion The use of disposable ureteroscopes is characterized by significantly lower post-operative complications and infection rates, while having comparable costs and SFRs vis à vis reusable ureteroscopes. Clinical Trial Registration Number: ISRCTN92289221.
Collapse
Affiliation(s)
- Giorgio Bozzini
- Urology Department, ASST Valle Olona, Busto Arsizio, Varese, Italy
| | | | | | - Alberto Calori
- Urology Department, ASST Valle Olona, Busto Arsizio, Varese, Italy
| | - Umberto Besana
- Urology Department, ASST Valle Olona, Busto Arsizio, Varese, Italy
| | - Alexander Mueller
- Department of Urology, University Hospital Zurich, Zurich, Switzerland
| | - Dmitri Pushkar
- Urology Department First Moscow State Medical University, Moscow, Russia
| | | | | | | | | | - Carlo Buizza
- Urology Department, ASST Valle Olona, Busto Arsizio, Varese, Italy
| | - Bernardo Rocco
- Urology Department, Policlinico of Modena, Modena, Italy
| |
Collapse
|
23
|
Ofstead CL, Buro BL, Hopkins KM, Eiland JE, Wetzler HP, Lichtenstein DR. Duodenoscope-associated infection prevention: A call for evidence-based decision making. Endosc Int Open 2020; 8:E1769-E1781. [PMID: 33269310 PMCID: PMC7671768 DOI: 10.1055/a-1264-7173] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/21/2020] [Accepted: 07/30/2020] [Indexed: 02/07/2023] Open
Abstract
Background Recent outbreaks of duodenoscope-associated multidrug-resistant organisms (MDROs) have brought attention to the infection risk from procedures performed with duodenoscopes. Prior to these MDRO outbreaks, procedures with duodenoscopes were considered safe and low risk for exogenous infection transmission, provided they were performed in strict accordance with manufacturer instructions for use and multisociety reprocessing guidelines. The attention and efforts of the scientific community, regulatory agencies, and the device industry have deepened our understanding of factors responsible for suboptimal outcomes. These include instrument design, reprocessing practices, and surveillance strategies for detecting patient and instrument colonization. Various investigations have made it clear that current reprocessing methods fail to consistently deliver a pathogen-free instrument. The magnitude of infection transmission has been underreported due to several factors. These include the types of organisms responsible for infection, clinical signs presenting in sites distant from ERCP inoculation, and long latency from the time of acquisition to infection. Healthcare providers remain hampered by the ill-defined infectious risk innate to the current instrument design, contradictory information and guidance, and limited evidence-based interventions or reprocessing modifications that reduce risk. Therefore, the objectives of this narrative review included identifying outbreaks described in the peer-reviewed literature and comparing the findings with infections reported elsewhere. Search strategies included accessing peer-reviewed articles, governmental databases, abstracts for scientific conferences, and media reports describing outbreaks. This review summarizes current knowledge, highlights gaps in traditional sources of evidence, and explores opportunities to improve our understanding of actual risk and evidence-based approaches to mitigate risk.
Collapse
Affiliation(s)
- Cori L. Ofstead
- Ofstead & Associates, Inc., St. Paul, Minnesota, United States
| | - Brandy L. Buro
- Ofstead & Associates, Inc., St. Paul, Minnesota, United States
| | | | - John E. Eiland
- Ofstead & Associates, Inc., St. Paul, Minnesota, United States
| | | | | |
Collapse
|
24
|
Efflux Pump-Driven Antibiotic and Biocide Cross-Resistance in Pseudomonas aeruginosa Isolated from Different Ecological Niches: A Case Study in the Development of Multidrug Resistance in Environmental Hotspots. Microorganisms 2020; 8:microorganisms8111647. [PMID: 33114277 PMCID: PMC7690850 DOI: 10.3390/microorganisms8111647] [Citation(s) in RCA: 45] [Impact Index Per Article: 11.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/23/2020] [Revised: 10/16/2020] [Accepted: 10/19/2020] [Indexed: 12/11/2022] Open
Abstract
Pseudomonas aeruginosa is an opportunistic pathogen displaying high intrinsic antimicrobial resistance and the ability to thrive in different ecological environments. In this study, the ability of P. aeruginosa to develop simultaneous resistance to multiple antibiotics and disinfectants in different natural niches were investigated using strains collected from clinical samples, veterinary samples, and wastewater. The correlation between biocide and antimicrobial resistance was determined by employing principal component analysis. Molecular mechanisms linking biocide and antimicrobial resistance were interrogated by determining gene expression using RT-qPCR and identifying a potential genetic determinant for co- and cross-resistance using whole-genome sequencing. A subpopulation of P. aeruginosa isolates belonging to three sequence types was resistant against the common preservative benzalkonium chloride and showed cross-resistance to fluoroquinolones, cephalosporins, aminoglycosides, and multidrug resistance. Of these, the epidemiological high-risk ST235 clone was the most abundant. The overexpression of the MexAB-OprM drug efflux pump resulting from amino acid mutations in regulators MexR, NalC, or NalD was the major contributing factor for cross-resistance that could be reversed by an efflux pump inhibitor. This is the first comparison of antibiotic-biocide cross-resistance in samples isolated from different ecological niches and serves as a confirmation of laboratory-based studies on biocide adapted isolates. The isolates from wastewater had a higher incidence of multidrug resistance and biocide-antibiotic cross-resistance than those from clinical and veterinary settings.
Collapse
|
25
|
Luo Y, Yang Q, Li B, Yao Y. Establishment of a quality control circle to reduce biofilm formation in flexible endoscopes by improvement of qualified cleaning rate. J Int Med Res 2020; 48:300060520952983. [PMID: 32951490 PMCID: PMC7509727 DOI: 10.1177/0300060520952983] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022] Open
Abstract
Objective In recent years, the Emergency Care Research Institute has advised that endoscope cleaning is of considerable importance. In the present study, a quality control circle (QCC) was used to reduce the formation of biofilms in flexible endoscopes within one hospital in Guangdong Province, China. Methods During reprocessing of 235 flexible endoscopes in the urology surgical suite, adenosine triphosphate (ATP) detection was used to monitor the efficacy of biofilm removal. The internal and external parts of flexible endoscopes were used as sampling sites by means of the flushing and smudge methods, respectively. When the two results reached the standard of less than 500 relative light units/piece at the same time, endoscopic biofilm clearance was considered to be qualified. A QCC was established to implement a 10-step plan-do-check-act model. Results The baseline qualified rate (i.e., ATP monitoring pass rate) during reprocessing of 235 flexible endoscopes was 50%. During the study, the qualified rate increased to 85.29% after establishment of the QCC. During reprocessing of 150 flexible endoscopes in the following 6 months, the qualified rate remained at 90%. Conclusion Establishment of the QCC improved the removal of biofilm from flexible endoscopes in the urology surgical suite.
Collapse
Affiliation(s)
- Yingxia Luo
- Department of Urology, Zhujiang Hospital, Southern Medical University, Guangzhou, China
| | - Qixuan Yang
- Department of Urology, Zhujiang Hospital, Southern Medical University, Guangzhou, China
| | - Bingkun Li
- Department of Urology, Zhujiang Hospital, Southern Medical University, Guangzhou, China
| | - Yao Yao
- Department of Medical Quality Management, Zhujiang Hospital, Southern Medical University, Guangzhou, China
| |
Collapse
|
26
|
Wiktorczyk N, Kwiecińska‐Piróg J, Skowron K, Michalska A, Zalas‐Więcek P, Białucha A, Budzyńska A, Grudlewska‐Buda K, Prażyńska M, Gospodarek‐Komkowska E. Assessment of endoscope cleaning and disinfection efficacy, and the impact of endoscope storage on the microbiological safety level. J Appl Microbiol 2020; 128:1503-1513. [DOI: 10.1111/jam.14558] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/15/2019] [Revised: 12/06/2019] [Accepted: 12/16/2019] [Indexed: 01/11/2023]
Affiliation(s)
- N. Wiktorczyk
- Department of Microbiology Nicolaus Copernicus University in Toruń Collegium Medicum of L. Rydygier Bydgoszcz Poland
| | - J. Kwiecińska‐Piróg
- Department of Microbiology Nicolaus Copernicus University in Toruń Collegium Medicum of L. Rydygier Bydgoszcz Poland
| | - K. Skowron
- Department of Microbiology Nicolaus Copernicus University in Toruń Collegium Medicum of L. Rydygier Bydgoszcz Poland
| | - A. Michalska
- Department of Microbiology Nicolaus Copernicus University in Toruń Collegium Medicum of L. Rydygier Bydgoszcz Poland
| | - P. Zalas‐Więcek
- Department of Microbiology Nicolaus Copernicus University in Toruń Collegium Medicum of L. Rydygier Bydgoszcz Poland
| | - A. Białucha
- Department of Microbiology Nicolaus Copernicus University in Toruń Collegium Medicum of L. Rydygier Bydgoszcz Poland
| | - A. Budzyńska
- Department of Microbiology Nicolaus Copernicus University in Toruń Collegium Medicum of L. Rydygier Bydgoszcz Poland
| | - K. Grudlewska‐Buda
- Department of Microbiology Nicolaus Copernicus University in Toruń Collegium Medicum of L. Rydygier Bydgoszcz Poland
| | - M. Prażyńska
- Department of Microbiology Nicolaus Copernicus University in Toruń Collegium Medicum of L. Rydygier Bydgoszcz Poland
| | - E. Gospodarek‐Komkowska
- Department of Microbiology Nicolaus Copernicus University in Toruń Collegium Medicum of L. Rydygier Bydgoszcz Poland
| |
Collapse
|
27
|
Ofstead CL, Hopkins KM. Sterilization Central: The Value of Borescopes in Detecting Damage, Soil, Fluid, and Foreign Objects in Flexible Endoscopes. Biomed Instrum Technol 2020; 54:146-152. [PMID: 32186902 DOI: 10.2345/0899-8205-54.2.146] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
|
28
|
Ofstead CL, Hopkins KM, Buro BL, Eiland JE, Wetzler HP. Challenges in achieving effective high-level disinfection in endoscope reprocessing. Am J Infect Control 2020; 48:309-315. [PMID: 31677925 DOI: 10.1016/j.ajic.2019.09.013] [Citation(s) in RCA: 20] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/15/2019] [Revised: 09/18/2019] [Accepted: 09/19/2019] [Indexed: 01/15/2023]
Abstract
Endoscope reprocessing is often ineffective, and microbes frequently remain on endoscopes after the use of high-level disinfectants (HLDs). Several factors impact reprocessing effectiveness, including non-adherence to guidelines, use of damaged endoscopes, use of insoluble products during endoscopy, insufficient cleaning, contaminated rinse water, and inadequate drying before storage. Our team suspected that issues with HLD chemistries and monitoring could also contribute to reprocessing failures. We conducted a mixed-methods analysis of published literature, our interviews with frontline personnel, and evidence from our previous studies. The evidence showed that reusable HLDs commonly failed tests for minimum effective concentration (MEC) before their maximum usage periods. MEC tests also detected failures associated with single-use HLDs that did not fully deploy. These failures were due to product issues, process complexities, and personnel non-adherence with guidelines and manufacturer instructions. HLDs will likely continue to be used for the foreseeable future. More research is needed to assess real-world practice patterns related to the high-level disinfection step and MEC testing and to establish more realistic usage periods for reusable HLD chemistries. Manufacturers and researchers should evaluate the ability of technological solutions and engineered safeguards to overcome human error. Recognition of the need for quality improvement is growing, and infection preventionists should take action to build on this momentum and collaborate with manufacturers, endoscopists, and reprocessing personnel to improve the effectiveness of high-level disinfection.
Collapse
|
29
|
Abstract
Infections with Pseudomonas aeruginosa have been marked with the highest priority for surveillance and epidemiological research on the basis of parameters such as incidence, case fatality rates, chronicity of illness, available options for prevention and treatment, health-care utilization, and societal impact. P. aeruginosa is one of the six ESKAPE pathogens that are the major cause of nosocomial infections and are a global threat because of their capacity to become increasingly resistant to all available antibiotics. This review reports on current pre-clinical and clinical advances of anti-pseudomonal therapies in the fields of drug development, antimicrobial chemotherapy, vaccines, phage therapy, non-bactericidal pathoblockers, outer membrane sensitizers, and host defense reinforcement.
Collapse
Affiliation(s)
- Burkhard Tümmler
- Clinical Research Group 'Molecular Pathology of Cystic Fibrosis' and 'Pseudomonas Genomics', Clinic for Pediatric Pneumology, Allergology and Neonatology, Hannover Medical School, Hannover, 30625, Germany.,Biomedical Research in Endstage and Obstructive Lung Disease (BREATH), German Center of Lung Disease, Hannover, 30625, Germany.,Cluster of Excellence RESIST (EXC 2155), Hannover Medical School, Hannover, 30625, Germany
| |
Collapse
|