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Wright JR, Ly TT, Cromwell KB, Brislawn CJ, Chen See JR, Anderson SLC, Pellegrino J, Peachey L, Walls CY, Lloyd CM, Jones OY, Lawrence MW, Bess JA, Wall AC, Shope AJ, Lamendella R. Assessment of a novel continuous cleaning device using metatranscriptomics in diverse hospital environments. Front Med Technol 2023; 5:1015507. [PMID: 36935775 PMCID: PMC10020724 DOI: 10.3389/fmedt.2023.1015507] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/27/2022] [Accepted: 02/17/2023] [Indexed: 03/06/2023] Open
Abstract
Introduction Despite routine implementation of cleaning and disinfection practices in clinical healthcare settings, high-touch environmental surfaces and contaminated equipment often serve as reservoirs for the transmission of pathogens associated with healthcare-associated infections (HAIs). Methods The current study involved the analysis of high-touch surface swabs using a metatranscriptomic sequencing workflow (CSI-Dx™) to assess the efficacy of cleanSURFACES® technology in decreasing microbial burden by limiting re-contamination. This is a non-human single center study conducted in the Emergency Department (ED) and on an inpatient Oncology Ward of Walter Reed National Military Medical Center that have followed hygienic practices during the COVID-19 pandemic environment. Results Although there was no difference in observed microbial richness (two-tailed Wilcoxon test with Holm correction, P > 0.05), beta diversity findings identified shifts in microbial community structure between surfaces from baseline and post-intervention timepoints (Day 1, Day 7, Day 14, and Day 28). Biomarker and regression analyses identified significant reductions in annotated transcripts for various clinically relevant microorganisms' post-intervention, coagulase-negative staphylococci and Malassezia restricta, at ED and Oncology ward, respectively. Additionally, post-intervention samples predominantly consisted of Proteobacteria and to a lesser extent skin commensals and endogenous environmental microorganisms in both departments. Discussion Findings support the value of cleanSURFACES®, when coupled with routine disinfection practices, to effectively impact on the composition of active microbial communities found on high-touch surfaces in two different patient care areas of the hospital (one outpatient and one inpatient) with unique demands and patient-centered practices.
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Affiliation(s)
- Justin R Wright
- Contamination Source Identification, LLC., Huntingdon, PA, United States
| | - Truc T Ly
- Contamination Source Identification, LLC., Huntingdon, PA, United States
| | - Karen B Cromwell
- Walter Reed National Military Medical Center, Bethesda, MD, United States
| | - Colin J Brislawn
- Contamination Source Identification, LLC., Huntingdon, PA, United States
| | - Jeremy R Chen See
- Contamination Source Identification, LLC., Huntingdon, PA, United States
| | | | - Jordan Pellegrino
- Contamination Source Identification, LLC., Huntingdon, PA, United States
| | - Logan Peachey
- Contamination Source Identification, LLC., Huntingdon, PA, United States
| | - Christine Y Walls
- Contamination Source Identification, LLC., Huntingdon, PA, United States
| | - Charise M Lloyd
- Walter Reed National Military Medical Center, Bethesda, MD, United States
| | - Olcay Y Jones
- Walter Reed National Military Medical Center, Bethesda, MD, United States
| | - Matthew W Lawrence
- Walter Reed National Military Medical Center, Bethesda, MD, United States
| | | | | | - Alexander J Shope
- Contamination Source Identification, LLC., Huntingdon, PA, United States
- AIONX, Hershey, PA, United States
| | - Regina Lamendella
- Contamination Source Identification, LLC., Huntingdon, PA, United States
- Correspondence: Regina Lamendella
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Wright JR, Ly TT, Brislawn CJ, Chen See JR, Anderson SLC, Pellegrino JT, Peachey L, Walls CY, Bess JA, Bailey AL, Braun KE, Shope AJ, Lamendella R. cleanSURFACES® intervention reduces microbial activity on surfaces in a senior care facility. Front Cell Infect Microbiol 2022; 12:1040047. [PMID: 36439229 PMCID: PMC9682068 DOI: 10.3389/fcimb.2022.1040047] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/08/2022] [Accepted: 10/19/2022] [Indexed: 11/11/2022] Open
Abstract
As one of the top public health challenges outlined by the Centers for Disease Control (CDC), estimates report that hospital acquired infections (HAIs) claim the lives of 99,000 Americans and cost healthcare providers over $28 billion each year. In addition to underlying conditions related to age, elderly patients in long-term care facilities are at an elevated risk of acquiring HAIs. A large percentage of HAIs is attributable to contaminated surfaces and medical devices. To that end, this study utilized a metatranscriptomic sequencing workflow (CSI-Dx™) to profile active microbial communities from surfaces in the HJ Heinz Community Living Center, a long-term care facility in the Veterans Affairs Pittsburgh Health Care System. Swabs were collected from high-touch surfaces (Keyboard, Ledge, Workstation on Wheels, Worksurfaces) before (Baseline) and after cleanSURFACES® were installed at 4 timepoints (Day 1, Day 7, Day 14, and Day 30). Microbial richness was significantly reduced after cleanSURFACES® intervention (Wilcoxon test with Holm correction, p=0.000179). Beta diversity results revealed distinct clustering between Baseline and Post-intervention samples (Adonis, p<0.001). Reduction in bacterial (Staphylococcus aureus, Staphylococcus epidermidis, Staphylococcus hominis) and fungal (Malassezia restricta, Candida albicans, Candida glabrata, and Candida orthopsilosis) expression of opportunistic pathogens was observed. Additionally, a subset of taxa (Corynebacterium, Cutibacterium acnes, and Ralstonia pickettii) was present in specific Post-intervention timepoints and surface types. This study revealed decreased microbial activity, highlighting the potential for the combinatorial application of cleanSURFACES® and regular decontamination practices to reduce the prevalence of microbes causing HAIs.
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Abraham MB, Davey RJ, Cooper MN, Paramalingam N, O'Grady MJ, Ly TT, Jones TW, Fournier PA, Davis EA. Reproducibility of the plasma glucose response to moderate-intensity exercise in adolescents with Type 1 diabetes. Diabet Med 2017; 34:1291-1295. [PMID: 28586529 DOI: 10.1111/dme.13395] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Accepted: 06/02/2017] [Indexed: 11/28/2022]
Abstract
AIMS The aim of the study was to evaluate the reproducibility of the plasma glucose response to moderate-intensity exercise performed on different days under controlled conditions in adolescents with Type 1 diabetes. METHODS Eight adolescents with Type 1 diabetes on continuous subcutaneous insulin infusion completed two exercise sessions, each on two separate days, under basal insulin and fasting conditions. On each day, participants cycled twice for 30 min at 55% of their peak rate of oxygen consumption, with each exercise session separated by a 30-min rest. RESULTS Plasma insulin levels were similar between testing days and exercise sessions. The mean absolute drop in plasma glucose from the commencement to the end of exercise was 1.6 ± 0.5 mmol/l on day 1 and 1.9 ± 0.7 mmol/l on day 2 (P = 0.3). In response to the first exercise session, plasma glucose levels relative to baseline did not change significantly (0.2 ± 0.6 and -0.2 ± 0.5 mmol/l on days 1 and 2). By contrast, the change in plasma glucose during the second exercise session was -1.1 ± 0.7 and -1.3 ± 0.7mmol/l on days 1 and 2, respectively. The mean absolute intra-individual difference in the change in plasma glucose between testing days were 0.7 ± 0.5 [95% confidence interval (CI) 0.4-1.0] and 0.7 ± 0.4 (95% CI 0.4-1.0) mmol/l, at the end of the first and second exercise sessions respectively. CONCLUSIONS The plasma glucose response to moderate-intensity exercise under similar glycaemic and basal insulin conditions can be reproducible in adolescents with Type 1 diabetes.
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Affiliation(s)
- M B Abraham
- Department of Endocrinology and Diabetes, Princess Margaret Hospital, Perth, Australia
- School of Paediatrics and Child Health, The University of Western Australia, Perth, Australia
| | - R J Davey
- School of Paediatrics and Child Health, The University of Western Australia, Perth, Australia
- Telethon Kids Institute, The University of Western Australia, Perth, Australia
| | - M N Cooper
- Telethon Kids Institute, The University of Western Australia, Perth, Australia
| | - N Paramalingam
- Department of Endocrinology and Diabetes, Princess Margaret Hospital, Perth, Australia
- School of Paediatrics and Child Health, The University of Western Australia, Perth, Australia
- Telethon Kids Institute, The University of Western Australia, Perth, Australia
| | - M J O'Grady
- Department of Endocrinology and Diabetes, Princess Margaret Hospital, Perth, Australia
| | - T T Ly
- Department of Endocrinology and Diabetes, Princess Margaret Hospital, Perth, Australia
- School of Paediatrics and Child Health, The University of Western Australia, Perth, Australia
- Telethon Kids Institute, The University of Western Australia, Perth, Australia
| | - T W Jones
- Department of Endocrinology and Diabetes, Princess Margaret Hospital, Perth, Australia
- School of Paediatrics and Child Health, The University of Western Australia, Perth, Australia
- Telethon Kids Institute, The University of Western Australia, Perth, Australia
| | - P A Fournier
- School of Sport Science, Exercise and Health, The University of Western Australia, Perth, Australia
| | - E A Davis
- Department of Endocrinology and Diabetes, Princess Margaret Hospital, Perth, Australia
- School of Paediatrics and Child Health, The University of Western Australia, Perth, Australia
- Telethon Kids Institute, The University of Western Australia, Perth, Australia
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Abraham MB, Nicholas JA, Ly TT, Roby HC, Paramalingam N, Fairchild J, King BR, Ambler GR, Cameron F, Davis EA, Jones TW. Safety and efficacy of the predictive low glucose management system in the prevention of hypoglycaemia: protocol for randomised controlled home trial to evaluate the Suspend before low function. BMJ Open 2016; 6:e011589. [PMID: 27084290 PMCID: PMC4838718 DOI: 10.1136/bmjopen-2016-011589] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/06/2023] Open
Abstract
INTRODUCTION Innovations with sensor-augmented pump therapy (SAPT) to reduce hypoglycaemia in patients with type 1 diabetes are an ongoing area of research. The predictive low glucose management (PLGM) system incorporates continuous glucose sensor data into an algorithm and suspends basal insulin before the occurrence of hypoglycaemia. The system was evaluated in in-clinic studies, and has informed the parameters of a larger home trial to study its efficacy and safety in real life. METHODS AND ANALYSIS The aim of this report is to describe the study design and outcome measures for the trial. This is a 6-month, multicentre, randomised controlled home trial to test the PLGM system in children and adolescents with type 1 diabetes. The system is available in the Medtronic MiniMed 640G pump as the 'Suspend before low' feature. Following a run-in period, participants are randomised to either the control arm with SAPT alone or the intervention arm with SAPT and Suspend before low. The primary aim of this study is to evaluate the time spent hypoglycaemic (sensor glucose <3.5 mmol/L) with and without the system. The secondary aims are to determine the number of hypoglycaemic events, the time spent hyperglycaemic, and to evaluate safety with ketosis and changes in glycated haemoglobin. The study also aims to assess the changes in counter-regulatory hormone responses to hypoglycaemia evaluated by a hyperinsulinaemic hypoglycaemic clamp in a subgroup of patients with impaired awareness. Validated questionnaires are used to measure the fear of hypoglycaemia and the impact on the quality of life to assess burden of the disease. ETHICS AND DISSEMINATION Ethics committee permissions were gained from respective Institutional Review boards. The findings of the study will provide high quality evidence of the ability of the system in the prevention of hypoglycaemia in real life. TRIAL REGISTRATION NUMBER ACTRN12614000510640, Pre-results.
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Affiliation(s)
- M B Abraham
- Department of Endocrinology and Diabetes, Princess Margaret Hospital for Children, Perth, Western Australia, Australia
- School of Paediatrics and Child Health, The University of Western Australia, Perth, Western Australia, Australia
| | - J A Nicholas
- Telethon Kids Institute, The University of Western Australia, Perth, Western Australia,Australia
| | - T T Ly
- Department of Endocrinology and Diabetes, Princess Margaret Hospital for Children, Perth, Western Australia, Australia
- School of Paediatrics and Child Health, The University of Western Australia, Perth, Western Australia, Australia
- Telethon Kids Institute, The University of Western Australia, Perth, Western Australia,Australia
| | - H C Roby
- Telethon Kids Institute, The University of Western Australia, Perth, Western Australia,Australia
| | - N Paramalingam
- Department of Endocrinology and Diabetes, Princess Margaret Hospital for Children, Perth, Western Australia, Australia
- Telethon Kids Institute, The University of Western Australia, Perth, Western Australia,Australia
| | - J Fairchild
- Endocrinology and Diabetes Centre, Women's and Children's Hospital, Adelaide, South Australia, Australia
| | - B R King
- Department of Endocrinology and Diabetes, John Hunter Children's Hospital, Newcastle, New South Wales, Australia
| | - G R Ambler
- Institute of Endocrinology and Diabetes, The Children's Hospital at Westmead and The University of Sydney, Sydney, New South Wales, Australia
| | - F Cameron
- Department of Endocrinology and Diabetes, Royal Children's Hospital, Melbourne, Victoria, Australia
| | - E A Davis
- Department of Endocrinology and Diabetes, Princess Margaret Hospital for Children, Perth, Western Australia, Australia
- School of Paediatrics and Child Health, The University of Western Australia, Perth, Western Australia, Australia
- Telethon Kids Institute, The University of Western Australia, Perth, Western Australia,Australia
| | - T W Jones
- Department of Endocrinology and Diabetes, Princess Margaret Hospital for Children, Perth, Western Australia, Australia
- School of Paediatrics and Child Health, The University of Western Australia, Perth, Western Australia, Australia
- Telethon Kids Institute, The University of Western Australia, Perth, Western Australia,Australia
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