LIVIVO - The Search Portal for Life Sciences

zur deutschen Oberfläche wechseln
Advanced search

Search results

Result 1 - 10 of total 14

Search options

  1. Article ; Online: A Thermoresponsive Chitosan/β-Glycerophosphate Hydrogel for Minimally Invasive Treatment of Critical Limb Ischaemia.

    Herron, Caroline / Hastings, Conn L / Herron-Rice, Clodagh / Kelly, Helena M / O'Dwyer, Joanne / Duffy, Garry P

    Polymers

    2021  Volume 13, Issue 20

    Abstract: A reduction in blood supply to any limb causes ischaemia, pain and morbidity. Critical limb ischaemia is the most serious presentation of peripheral vascular disease. One in five patients with critical limb ischaemia will die within six months of ... ...

    Abstract A reduction in blood supply to any limb causes ischaemia, pain and morbidity. Critical limb ischaemia is the most serious presentation of peripheral vascular disease. One in five patients with critical limb ischaemia will die within six months of diagnosis and one in three will require amputation in this time. Improving blood flow to the limb, via the administration of angiogenic agents, could relieve pain and avoid amputation. Herein, chitosan is combined with β-glycerophosphate to form a thermoresponsive formulation (chitosan/β-GP) that will flow through a syringe and needle at room temperature but will form a gel at body temperature. The chitosan/β-GP hydrogel, with or without the angiogenic molecule desferrioxamine (DFO), was injected into the mouse hind limb, following vessel ligation, to test the ability of the formulations to induce angiogenesis. The effects of the formulations were measured using laser Doppler imaging to determine limb perfusion and CD31 staining to quantify the number of blood vessels. Twenty-eight days following induction of ischaemia, the chitosan/β-GP and chitosan/β-GP + 100 µM DFO formulations had significantly (
    Language English
    Publishing date 2021-10-16
    Publishing country Switzerland
    Document type Journal Article
    ZDB-ID 2527146-5
    ISSN 2073-4360 ; 2073-4360
    ISSN (online) 2073-4360
    ISSN 2073-4360
    DOI 10.3390/polym13203568
    Database MEDical Literature Analysis and Retrieval System OnLINE

    More links

    Kategorien

  2. Article: Bones of Contention: A Comprehensive Literature Review of Non-SSRI Antidepressant Use and Bone Health.

    Power, Clodagh / Duffy, Richard / Mahon, James / McCarroll, Kevin / Lawlor, Brian A

    Journal of geriatric psychiatry and neurology

    2019  Volume 33, Issue 6, Page(s) 340–352

    Abstract: Osteoporotic fractures are associated with major morbidity and mortality, particularly among older age groups. In recent decades, selective serotonin reuptake inhibitors (SSRI) antidepressants have been linked to reduced bone mineral density and ... ...

    Abstract Osteoporotic fractures are associated with major morbidity and mortality, particularly among older age groups. In recent decades, selective serotonin reuptake inhibitors (SSRI) antidepressants have been linked to reduced bone mineral density and increased risk of fragility fracture. However, up to one-third of antidepressant prescriptions are for classes other than SSRIs. Older patients, who are particularly vulnerable to osteoporosis and its clinical and psychosocial consequences, may be prescribed non-SSRI antidepressants preferentially because of increasing awareness of the risks SSRIs pose to bone health. However, to date, the skeletal effects of non-SSRI antidepressants have not been comprehensively reviewed. In this article, we collate and review the available data and discuss the findings. Based on the current literature, we tentatively suggest that tricyclic antidepressants may increase the risk of fracture via mechanisms other than a direct effect on bone mineral density. The risk is apparently confined to current users only and is greatest in the earliest stage of treatment, diminishing thereafter. There is, as yet, insufficient data to conclusively determine the effects of other antidepressant classes on bone. Judicious prescribing of antidepressants among higher risk groups necessitates a thorough review of the individual's risk factors for osteoporosis as well as attention to their falls risk. Further longitudinal, rigorously controlled studies are needed to answer some of the remaining questions on the effects of non-SSRI antidepressants on bone and the mechanisms by which they are exerted.
    MeSH term(s) Accidental Falls/prevention & control ; Aged ; Antidepressive Agents/adverse effects ; Antidepressive Agents/therapeutic use ; Antidepressive Agents, Tricyclic/adverse effects ; Antidepressive Agents, Tricyclic/therapeutic use ; Bone Density/drug effects ; Bone and Bones/drug effects ; Female ; Fractures, Bone/chemically induced ; Fractures, Bone/diagnosis ; Humans ; Male ; Risk Factors ; Serotonin Uptake Inhibitors/adverse effects
    Chemical Substances Antidepressive Agents ; Antidepressive Agents, Tricyclic ; Serotonin Uptake Inhibitors
    Language English
    Publishing date 2019-10-30
    Publishing country United States
    Document type Journal Article ; Review
    ZDB-ID 1035760-9
    ISSN 0891-9887
    ISSN 0891-9887
    DOI 10.1177/0891988719882091
    Database MEDical Literature Analysis and Retrieval System OnLINE

    More links

    Kategorien

  3. Article ; Online: Chest drain aerosol generation in COVID-19 and emission reduction using a simple anti-viral filter.

    Duffy, Clodagh / Kidd, Andrew / Francis, Sarah / Tsim, Selina / McNaughton, Laura / Ferguson, Katie / Ferguson, Jenny / Rodgers, K Gary / McGroarty, Claire / Sayer, Robin / Blyth, Kevin G

    BMJ open respiratory research

    2020  Volume 7, Issue 1

    Abstract: Introduction: The COVID-19 pandemic has been characterised by significant in-hospital virus transmission and deaths among healthcare workers. Sources of in-hospital transmission are not fully understood, with special precautions currently reserved for ... ...

    Abstract Introduction: The COVID-19 pandemic has been characterised by significant in-hospital virus transmission and deaths among healthcare workers. Sources of in-hospital transmission are not fully understood, with special precautions currently reserved for procedures previously shown to generate aerosols (particles <5 μm). Pleural procedures are not currently considered AGPs (Aerosol Generating Procedures), reflecting a lack of data in this area.
    Methods: An underwater seal chest drain bottle (R54500, Rocket Medical UK) was set up inside a 60-litre plastic box and connected via an airtight conduit to a medical air supply. A multichannel particle counter (TSI Aerotrak 9310 Aerosol Monitor) was placed inside the box, allowing measurement of particle count/cubic foot (pc/ft
    Results: Aerosol emissions increased with increasing air flow, with the largest increase observed in smaller particles (0.3-3 μm). Concentration of the smallest particles (0.3-0.5 μm) increased from background levels by 700, 1400 and 2500 pc/ft
    Conclusion: A bubbling chest drain is a source of aerosolised particles, but emission can be prevented using a simple anti-viral filter. These data should be considered when designing measures to reduce in-hospital spread of SARS-CoV-2.
    MeSH term(s) Aerosols ; Betacoronavirus ; COVID-19 ; Chest Tubes ; Coronavirus Infections/transmission ; Drainage ; Filtration/instrumentation ; Health Personnel ; Humans ; Infectious Disease Transmission, Patient-to-Professional/prevention & control ; Occupational Exposure/prevention & control ; Pandemics ; Particle Size ; Particulate Matter ; Pneumonia, Viral/transmission ; SARS-CoV-2
    Chemical Substances Aerosols ; Particulate Matter
    Keywords covid19
    Language English
    Publishing date 2020-11-03
    Publishing country England
    Document type Journal Article ; Research Support, Non-U.S. Gov't
    ZDB-ID 2736454-9
    ISSN 2052-4439 ; 2052-4439
    ISSN (online) 2052-4439
    ISSN 2052-4439
    DOI 10.1136/bmjresp-2020-000710
    Database MEDical Literature Analysis and Retrieval System OnLINE

    More links

    Kategorien

  4. Article ; Online: Chest drain aerosol generation in COVID-19 and emission reduction using a simple anti-viral filter

    Selina Tsim / Kevin G Blyth / Claire McGroarty / Katie Ferguson / Clodagh Duffy / Andrew Kidd / Sarah Francis / Laura McNaughton / Jenny Ferguson / K Gary Rodgers / Robin Sayer

    BMJ Open Respiratory Research, Vol 7, Iss

    2020  Volume 1

    Abstract: Introduction The COVID-19 pandemic has been characterised by significant in-hospital virus transmission and deaths among healthcare workers. Sources of in-hospital transmission are not fully understood, with special precautions currently reserved for ... ...

    Abstract Introduction The COVID-19 pandemic has been characterised by significant in-hospital virus transmission and deaths among healthcare workers. Sources of in-hospital transmission are not fully understood, with special precautions currently reserved for procedures previously shown to generate aerosols (particles <5 μm). Pleural procedures are not currently considered AGPs (Aerosol Generating Procedures), reflecting a lack of data in this area.Methods An underwater seal chest drain bottle (R54500, Rocket Medical UK) was set up inside a 60-litre plastic box and connected via an airtight conduit to a medical air supply. A multichannel particle counter (TSI Aerotrak 9310 Aerosol Monitor) was placed inside the box, allowing measurement of particle count/cubic foot (pc/ft3) within six channel sizes: 0.3–0.5, 0.5–1, 1–3, 3–5, 5–10 and >10 μm. Stabilised particle counts at 1, 3 and 5 L/min were compared by Wilcoxon signed rank test; p values were Bonferroni-adjusted. Measurements were repeated with a simple anti-viral filter, designed using repurposed materials by the study team, attached to the drain bottle. The pressure within the bottle was measured to assess any effect of the filter on bottle function.Results Aerosol emissions increased with increasing air flow, with the largest increase observed in smaller particles (0.3–3 μm). Concentration of the smallest particles (0.3–0.5 μm) increased from background levels by 700, 1400 and 2500 pc/ft3 at 1, 3 and 5 L/min, respectively. However, dispersion of particles of all sizes was effectively prevented by use of the viral filter at all flow rates. Use of the filter was associated with a maximum pressure rise of 0.3 cm H2O after 24 hours of flow at 5 L/min, suggesting minimal impact on drain function.Conclusion A bubbling chest drain is a source of aerosolised particles, but emission can be prevented using a simple anti-viral filter. These data should be considered when designing measures to reduce in-hospital spread of SARS-CoV-2.
    Keywords Medicine ; R ; Diseases of the respiratory system ; RC705-779
    Subject code 333
    Language English
    Publishing date 2020-05-01T00:00:00Z
    Publisher BMJ Publishing Group
    Document type Article ; Online
    Database BASE - Bielefeld Academic Search Engine (life sciences selection)

    More links

    Kategorien

  5. Article ; Online: The detection, diagnosis, and impact of cognitive impairment among inpatients aged 65 years and over in an Irish general hospital - a prospective observational study.

    Power, Clodagh / Duffy, Richard / Bates, Helena / Healy, Mike / Gleeson, Petrina / Lawlor, Brian A / Greene, Elaine

    International psychogeriatrics

    2017  Volume 29, Issue 11, Page(s) 1879–1888

    Abstract: Background: The diagnosis of dementia remains inadequate, even within clinical settings. Data on rates and degree of impairment among inpatients are vital for service planning and the provision of appropriate patient care as Ireland's population ages.!## ...

    Abstract Background: The diagnosis of dementia remains inadequate, even within clinical settings. Data on rates and degree of impairment among inpatients are vital for service planning and the provision of appropriate patient care as Ireland's population ages.
    Methods: Every patient aged 65 years and over admitted over a two-week period was invited to participate. Those who met inclusion criteria were screened for delirium then underwent cognitive screening. Demographic, functional, and outcome data were obtained from medical records, participants, and family.
    Results: Consent to participate was obtained from 68.6% of the eligible population. Data for 143 patients were obtained. Mean age 78.1 years. 27.3% met criteria for dementia and 21% had mild cognitive impairment (MCI). Only 41% of those with dementia and 10% of those with MCI had a previously documented impairment. Between-group analysis showed differences in length of stay (p = 0.003), number of readmissions in 12 months (p = 0.036), and likelihood of returning home (p = 0.039) between the dementia and normal groups. MCI outcomes were similar to the normal group. No difference was seen for one-year mortality. Effects were less pronounced on multivariate analysis but continued to show a significant effect on length of stay even after controlling for demographics, personal and family history, and anxiety and depression screening scores. Patients with dementia remained in hospital 15.3 days longer (p = 0.047). A diagnosis is the single biggest contributing factor to length of stay in our regression model.
    Conclusions: Cognitive impairment is pervasive and under-recognized in the acute hospital and impacts negatively on patient outcomes.
    Language English
    Publishing date 2017-11
    Publishing country England
    Document type Journal Article
    ZDB-ID 1038825-4
    ISSN 1741-203X ; 1041-6102
    ISSN (online) 1741-203X
    ISSN 1041-6102
    DOI 10.1017/S1041610217001326
    Database MEDical Literature Analysis and Retrieval System OnLINE

    More links

    Kategorien

  6. Article ; Online: (with research data) Introgression threatens the survival of the critically endangered freshwater crayfish Cherax tenuimanus (Decapoda: Parastacidae) in the wild.

    Guildea, Clodagh / Hitchen, Yvette / Duffy, Rodney / Dias, P Joana / Ledger, Jason M / Snow, Michael / Kennington, W Jason

    PloS one

    2015  Volume 10, Issue 3, Page(s) e0121075

    Abstract: Hybridization and genetic introgression following the introduction of exotic species can pose a significant threat to the survival of geographically restricted species. A remnant population of the critically endangered freshwater crayfish Cherax ... ...

    Abstract Hybridization and genetic introgression following the introduction of exotic species can pose a significant threat to the survival of geographically restricted species. A remnant population of the critically endangered freshwater crayfish Cherax tenuimanus in the upper reaches of the Margaret River in southwestern Australia is under threat following the introduction and spread of its congener Cherax cainii. Here, we examine the extent of hybridization and introgression between the two species using twelve polymorphic microsatellite loci. Our study reveals there are three times more C. cainii than C. tenuimanus at our study site in the upper reaches of the Margaret River. There is also evidence of hybridization and introgression between C. tenuimanus and C. cainii at this site, with F1, F2 and backcrossed individuals identified. While interbreeding was confirmed in this study, our simulations suggest that the levels of introgression are much lower than would be expected under random mating, indicating partial reproductive barriers exist. Nevertheless, it is apparent that hybridization and introgression with C. cainii pose a serious threat to C. tenuimanus and their survival in the wild will require active adaptive management and continued genetic monitoring to evaluate management effectiveness.
    MeSH term(s) Animals ; Astacoidea/genetics ; Endangered Species ; Gene Flow ; Hybridization, Genetic ; Inbreeding ; Microsatellite Repeats ; Polymorphism, Genetic ; Reproductive Isolation
    Language English
    Publishing date 2015-03-23
    Publishing country United States
    Document type Journal Article ; Research Support, Non-U.S. Gov't
    ZDB-ID 2267670-3
    ISSN 1932-6203 ; 1932-6203
    ISSN (online) 1932-6203
    ISSN 1932-6203
    DOI 10.1371/journal.pone.0121075
    Database MEDical Literature Analysis and Retrieval System OnLINE

    More links

    Kategorien

  7. Article ; Online: CHEST DRAIN AEROSOL GENERATION IN COVID-19 AND EMISSION REDUCTION USING A SIMPLE ANTI-VIRAL FILTER

    DUFFY, CLODAGH / KIDD, ANDREW / FRANCIS, SARAH / TSIM, SELINA / MCNAUGHTON, LAURA / FERGUSON, KATIE / FERGUSON, JENNY / RODGERS, GARY / McGROARTY, CLAIRE / SAYER, ROBIN / BLYTH, KEVIN G

    medRxiv

    Abstract: INTRODUCTION The COVID-19 pandemic has been characterised by significant in-hospital virus transmission and deaths among healthcare workers. Sources of in-hospital transmission are not fully understood, with special precautions currently reserved for ... ...

    Abstract INTRODUCTION The COVID-19 pandemic has been characterised by significant in-hospital virus transmission and deaths among healthcare workers. Sources of in-hospital transmission are not fully understood, with special precautions currently reserved for procedures previously shown to generate aerosols (particles <5 microns). Pleural procedures are not currently considered AGPs, reflecting a lack of data in this area. METHODS An underwater seal chest drain bottle (R54500, Rocket Medical UK) was set up inside a 60-litre plastic box and connected via an airtight conduit to a medical air supply. A multichannel particle counter (TSI Aerotrak 9310 Aerosol Monitor) was placed inside the box, allowing measurement of particle count/cubic foot (pc/ft<sup>3</sup>) within six channel sizes: 0.3-0.5, 0.5-1, 1-3, 3-5, 5-10 and >10 microns. Stabilised particle counts at 1, 3 and 5 L/min were compared by Wilcoxon signed rank test; p-values were Bonferroni-adjusted. Measurements were repeated with a simple anti-viral filter, designed using repurposed materials by the study team, attached to the drain bottle. The pressure within the bottle was measured to assess any effect of the filter on bottle function. RESULTS Aerosol emissions increased with increased air flow, with the largest increase observed in smaller particles (0.3-3 microns). Concentration of the smallest particles (0.3-0.5 microns) increased from background levels by 700, 1400 and 2500 pc/ft<sup>3</sup> at 1, 3 and 5 L/min, respectively. However, dispersion of particles of all sizes was effectively prevented by use of the viral filter at all flow rates. Use of the filter was associated with a maximum pressure rise of 0.3 cm H<sub>2</sub>O after 24 hours of flow at 5 L/min, suggesting minimal impact on drain function. CONCLUSIONS A bubbling chest drain is a source of aerosolised particles, but emission can be prevented using a simple anti-viral filter. These data should be considered when designing measures to reduce in-hospital spread of SARS-CoV-2.
    Keywords covid19
    Language English
    Publishing date 2020-07-15
    Publisher Cold Spring Harbor Laboratory Press
    Document type Article ; Online
    DOI 10.1101/2020.07.13.20152264
    Database COVID19

    Kategorien

  8. Article: Chest drain aerosol generation in COVID-19 and emission reduction using a simple anti-viral filter

    Duffy, Clodagh / Kidd, Andrew / Francis, Sarah / Tsim, Selina / McNaughton, Laura / Ferguson, Katie / Ferguson, Jenny / Rodgers, K Gary / McGroarty, Claire / Sayer, Robin / Blyth, Kevin G

    Abstract: INTRODUCTION: The COVID-19 pandemic has been characterised by significant in-hospital virus transmission and deaths among healthcare workers. Sources of in-hospital transmission are not fully understood, with special precautions currently reserved for ... ...

    Abstract INTRODUCTION: The COVID-19 pandemic has been characterised by significant in-hospital virus transmission and deaths among healthcare workers. Sources of in-hospital transmission are not fully understood, with special precautions currently reserved for procedures previously shown to generate aerosols (particles <5 µm). Pleural procedures are not currently considered AGPs (Aerosol Generating Procedures), reflecting a lack of data in this area. METHODS: An underwater seal chest drain bottle (R54500, Rocket Medical UK) was set up inside a 60-litre plastic box and connected via an airtight conduit to a medical air supply. A multichannel particle counter (TSI Aerotrak 9310 Aerosol Monitor) was placed inside the box, allowing measurement of particle count/cubic foot (pc/ft3) within six channel sizes: 0.3-0.5, 0.5-1, 1-3, 3-5, 5-10 and >10 µm. Stabilised particle counts at 1, 3 and 5 L/min were compared by Wilcoxon signed rank test; p values were Bonferroni-adjusted. Measurements were repeated with a simple anti-viral filter, designed using repurposed materials by the study team, attached to the drain bottle. The pressure within the bottle was measured to assess any effect of the filter on bottle function. RESULTS: Aerosol emissions increased with increasing air flow, with the largest increase observed in smaller particles (0.3-3 µm). Concentration of the smallest particles (0.3-0.5 µm) increased from background levels by 700, 1400 and 2500 pc/ft3 at 1, 3 and 5 L/min, respectively. However, dispersion of particles of all sizes was effectively prevented by use of the viral filter at all flow rates. Use of the filter was associated with a maximum pressure rise of 0.3 cm H2O after 24 hours of flow at 5 L/min, suggesting minimal impact on drain function. CONCLUSION: A bubbling chest drain is a source of aerosolised particles, but emission can be prevented using a simple anti-viral filter. These data should be considered when designing measures to reduce in-hospital spread of SARS-CoV-2.
    Keywords covid19
    Publisher WHO
    Document type Article
    Note WHO #Covidence: #910340
    Database COVID19

    Kategorien

  9. Article ; Online: Chest drain aerosol generation in COVID-19 and emission reduction using a simple anti-viral filter

    Duffy, Clodagh / Kidd, Andrew C. / Francis, Sarah / Tsim, Selina / McNaughton, Laura / Ferguson, Katie / Ferguson, Jenny / Rodgers, Gary / Mcgroarty, Claire / Sayer, Robin / Blyth, Kevin G.

    2020  

    Abstract: Introduction: The COVID-19 pandemic has been characterised by significant in-hospital virus transmission and deaths among healthcare workers. Sources of in-hospital transmission are not fully understood, with special precautions currently reserved for ... ...

    Abstract Introduction: The COVID-19 pandemic has been characterised by significant in-hospital virus transmission and deaths among healthcare workers. Sources of in-hospital transmission are not fully understood, with special precautions currently reserved for procedures previously shown to generate aerosols (particles <5 μm). Pleural procedures are not currently considered AGPs (Aerosol Generating Procedures), reflecting a lack of data in this area. Methods: An underwater seal chest drain bottle (R54500, Rocket Medical UK) was set up inside a 60-litre plastic box and connected via an airtight conduit to a medical air supply. A multichannel particle counter (TSI Aerotrak 9310 Aerosol Monitor) was placed inside the box, allowing measurement of particle count/cubic foot (pc/ft3) within six channel sizes: 0.3–0.5, 0.5–1, 1–3, 3–5, 5–10 and >10 μm. Stabilised particle counts at 1, 3 and 5 L/min were compared by Wilcoxon signed rank test; p values were Bonferroni-adjusted. Measurements were repeated with a simple anti-viral filter, designed using repurposed materials by the study team, attached to the drain bottle. The pressure within the bottle was measured to assess any effect of the filter on bottle function. Results: Aerosol emissions increased with increasing air flow, with the largest increase observed in smaller particles (0.3–3 μm). Concentration of the smallest particles (0.3–0.5 μm) increased from background levels by 700, 1400 and 2500 pc/ft3 at 1, 3 and 5 L/min, respectively. However, dispersion of particles of all sizes was effectively prevented by use of the viral filter at all flow rates. Use of the filter was associated with a maximum pressure rise of 0.3 cm H2O after 24 hours of flow at 5 L/min, suggesting minimal impact on drain function. Conclusion: A bubbling chest drain is a source of aerosolised particles, but emission can be prevented using a simple anti-viral filter. These data should be considered when designing measures to reduce in-hospital spread of SARS-CoV-2.
    Keywords covid19
    Language English
    Publishing date 2020-11-04
    Publisher BMJ Publishing Group
    Publishing country uk
    Document type Article ; Online
    Database BASE - Bielefeld Academic Search Engine (life sciences selection)

    More links

    Kategorien

  10. Article ; Online: Chest drain aerosol generation in COVID-19 and emission reduction using a simple anti-viral filter

    Duffy, Clodagh / Kidd, Andrew / Francis, Sarah / Tsim, Selina / McNaughton, Laura / Ferguson, Katie / Ferguson, Jenny / Rodgers, K Gary / McGroarty, Claire / Sayer, Robin / Blyth, Kevin G

    BMJ Open Respiratory Research

    2020  Volume 7, Issue 1, Page(s) e000710

    Abstract: Introduction The COVID-19 pandemic has been characterised by significant in-hospital virus transmission and deaths among healthcare workers. Sources of in-hospital transmission are not fully understood, with special precautions currently reserved for ... ...

    Abstract Introduction The COVID-19 pandemic has been characterised by significant in-hospital virus transmission and deaths among healthcare workers. Sources of in-hospital transmission are not fully understood, with special precautions currently reserved for procedures previously shown to generate aerosols (particles <5 μm). Pleural procedures are not currently considered AGPs (Aerosol Generating Procedures), reflecting a lack of data in this area. Methods An underwater seal chest drain bottle (R54500, Rocket Medical UK) was set up inside a 60-litre plastic box and connected via an airtight conduit to a medical air supply. A multichannel particle counter (TSI Aerotrak 9310 Aerosol Monitor) was placed inside the box, allowing measurement of particle count/cubic foot (pc/ft 3 ) within six channel sizes: 0.3–0.5, 0.5–1, 1–3, 3–5, 5–10 and >10 μm. Stabilised particle counts at 1, 3 and 5 L/min were compared by Wilcoxon signed rank test; p values were Bonferroni-adjusted. Measurements were repeated with a simple anti-viral filter, designed using repurposed materials by the study team, attached to the drain bottle. The pressure within the bottle was measured to assess any effect of the filter on bottle function. Results Aerosol emissions increased with increasing air flow, with the largest increase observed in smaller particles (0.3–3 μm). Concentration of the smallest particles (0.3–0.5 μm) increased from background levels by 700, 1400 and 2500 pc/ft 3 at 1, 3 and 5 L/min, respectively. However, dispersion of particles of all sizes was effectively prevented by use of the viral filter at all flow rates. Use of the filter was associated with a maximum pressure rise of 0.3 cm H 2 O after 24 hours of flow at 5 L/min, suggesting minimal impact on drain function. Conclusion A bubbling chest drain is a source of aerosolised particles, but emission can be prevented using a simple anti-viral filter. These data should be considered when designing measures to reduce in-hospital spread of SARS-CoV-2.
    Keywords covid19
    Language English
    Publisher BMJ
    Publishing country uk
    Document type Article ; Online
    ZDB-ID 2736454-9
    ISSN 2052-4439
    ISSN 2052-4439
    DOI 10.1136/bmjresp-2020-000710
    Database BASE - Bielefeld Academic Search Engine (life sciences selection)

    More links

    Kategorien

To top