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Gabel C, Elholm G, Rasmussen MK, Broholt TH, Jensen SR, Petersen S, Sigsgaard T. The HOME-Health (HOusing, environMEnt, and Health) Study; Description of a Danish natural experiment, designed as a longitudinal study with repeated measurements, providing internal- and external validity of the study. Environ Health Insights 2023; 17:11786302231181489. [PMID: 37456908 PMCID: PMC10345915 DOI: 10.1177/11786302231181489] [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] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 02/16/2023] [Accepted: 05/25/2023] [Indexed: 07/18/2023]
Abstract
Background The ambient and indoor environment are pivotal to our health. We spend most of our time indoors within our home, why our home is where we are most exposed to indoor pollutants and indoor air quality (IAQ). Populations within social housing areas are more vulnerable due to advanced age, co-morbidity and social economic status. Commonly, studies within social housing are cross-sectional, few Nordic longitudinal studies exist, and fewer studies combine quantitative and qualitative measurements in a mixed method approach. Method This research proposal provides an extensive detailed description of the design and methodology of the HOME-Health study. The study is a longitudinal study and is a natural experiment employing structured surveys, objective measurements of indoor air parameters, lung function test and qualitative semi-structured interviews. Data collection are conducted seasonally (winter and summer), before and after building energy renovation (BER). Generalisability The study population before BER (n = 432) was explored and found similar to the Danish social housing population in terms of age, gender, persons per apartment and migration status. Future analyses should be stratified by multi-family apartments and terraced houses. Research aim The aim of the HOME-Health study is to provide knowledge about residents' seasonal state of health, perception of indoor enviromental quality (IEQ), IEQ-related behaviours and practices, and objective measurements of IAQ before and after BER. By applying a design with repeated measurement before and after BER, and combining both objective and subjective quantitative as well as qualitative data the study is expected to create in-depth knowledge. Future results will provide evidence of both energy-savings and non-energy savings from different BER projects. Knowledge which are expected to benefit future renovation projects within social housing areas.
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Affiliation(s)
- Charlotte Gabel
- Department of Public Health, section of Environment, Occupation and Health, Aarhus University, Aarhus, Denmark
| | - Grethe Elholm
- Department of Public Health, section of Environment, Occupation and Health, Aarhus University, Aarhus, Denmark
| | - Mia Kruse Rasmussen
- Alexandra Institute, Aarhus, Denmark
- Department of Civil and Architectural Engineering, Aarhus University, Aarhus, Denmark
- AART Architects, Aarhus, Denmark
| | - Thea Hauge Broholt
- Department of Civil and Architectural Engineering, Aarhus University, Aarhus, Denmark
| | - Stina Rask Jensen
- Department of Civil and Architectural Engineering, Aarhus University, Aarhus, Denmark
- AART Architects, Aarhus, Denmark
| | - Steffen Petersen
- Department of Civil and Architectural Engineering, Aarhus University, Aarhus, Denmark
| | - Torben Sigsgaard
- Department of Public Health, section of Environment, Occupation and Health, Aarhus University, Aarhus, Denmark
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Ricci F, Khanji MY, Bisaccia G, Cipriani A, Cesare AD, Ceriello L, Mantini C, Zimarino M, Fedorowski A, Gallina S, Petersen S, Bucciarelli-ducci C. 1062 DIAGNOSTIC AND PROGNOSTIC VALUE OF STRESS CMR IMAGING TO EVALUATE STABLE CHEST PAIN: A TWENTY-YEAR META-ANALYSIS. Eur Heart J Suppl 2022. [DOI: 10.1093/eurheartjsupp/suac121.226] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Abstract
Abstract
Background
Assessment of inducible ischemia with stress cardiovascular magnetic resonance (CMR) is recommended in patients with chest pain and intermediate or high pre-test probability of coronary artery disease (CAD). We aimed to provide a contemporary quantitative data synthesis on diagnostic accuracy and prognostic value of stress CMR in patients with stable chest pain syndromes.
Methods
We performed a systematic review and meta-analysis of studies published over the last twenty years on the diagnostic and prognostic value of stress CMR (PROSPERO: CRD42022299275). We measured pooled diagnostic indicators, including diagnostic odds ratio (DOR), sensitivity, specificity, area under the curve (AUC), and summary effect size indicators, including odds ratios (ORs) and cumulative annualized event rates (AERs) for all-cause death, cardiovascular death and major adverse cardiac events (MACE).
Results
We identified 33 diagnostic studies pooling 7,815 individuals (mean age, 62 years, 62% males) and 31 prognostic studies pooling 67,080 patients (mean age, 62 years; 57% males; mean follow-up 3.5 years for a total of 381,357 person-years). Stress CMR yielded a pooled DOR of 26.4 (95%CI:10.6-65.9), a sensitivity of 81% (95%CI:68-89%), a specificity of 86% (95%CI:75-93%), and an AUC of 0.84 (95%CI:0.77-0.89) for the detection of functionally obstructive CAD with fractional flow reserve as the reference test. In subgroup analysis, 3 Tesla imaging yielded higher diagnostic accuracy achieving a DOR of 33.2. Presence of stress-inducible ischemia was associated with higher all-cause mortality (OR:2.0; 95%CI:1.7-2.3), cardiovascular mortality (OR:6.4; 95%CI:4.5-9.1), and increased risk of MACE (OR:5.3; 95%CI:4.0-7.0). AERs for cardiovascular death and MACE were <1% in patients without stress-inducible ischemia.
Conclusions
Stress CMR yields high diagnostic accuracy and delivers robust prognostication in patients with stable chest pain and known or suspected CAD, particularly with 3 Tesla imaging. While inducible ischemia portends excess mortality and increased risk of MACE, a negative stress CMR indicates a very low risk of future cardiovascular events, with a warranty period of at least 3.5 years.
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Affiliation(s)
- Fabrizio Ricci
- G.D’annunzio University Of Chieti-Pescara , Chieti , Italy
| | | | | | | | | | - Laura Ceriello
- G.D’annunzio University Of Chieti-Pescara , Chieti , Italy
| | - Cesare Mantini
- G.D’annunzio University Of Chieti-Pescara , Chieti , Italy
| | - Marco Zimarino
- G.D’annunzio University Of Chieti-Pescara , Chieti , Italy
| | | | - Sabina Gallina
- G.D’annunzio University Of Chieti-Pescara , Chieti , Italy
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Westra J, Li Z, Rasmussen L, Winther S, Li G, Nissen L, Petersen S, Ejlersen J, Isaksen C, Gormsen L, Urbonaviciene G, Eftekhari A, Weng T, Qu X, Bøtker H, Christiansen EH, Holm NR, Bøttcher M, Tu S. One-step anatomic and function testing by cardiac CT versus second-line functional testing in symptomatic patients with coronary artery stenosis: head-to-head comparison of CT-derived fractional flow reserve and myocardial perfusion imaging. EUROINTERVENTION 2021; 17:576-583. [PMID: 33196446 PMCID: PMC9724926 DOI: 10.4244/eij-d-20-00905] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
Abstract
BACKGROUND CT-QFR is a novel coronary computed tomography angiography (CTA)-based method for on-site evaluation of patients with suspected obstructive coronary artery disease (CAD). AIMS We aimed to compare the diagnostic performance of CT-QFR with myocardial perfusion scintigraphy (MPS) and cardiovascular magnetic resonance (CMR) as second-line tests in patients with suspected obstructive CAD after coronary CTA. METHODS A paired analysis of CT-QFR and MPS or CMR, with an invasive FFR-based classification as reference standard was carried out. Symptomatic patients with >50% diameter stenosis on coronary CTA were randomised to MPS or CMR and referred for invasive coronary angiography. RESULTS The rate of coronary CTA not feasible for CT-QFR analysis was 17%. Paired patient-level data were available for 118 patients in the MPS group and 113 in the CMR group. Patient-level diagnostic accuracy was better for CT-QFR than for both MPS (82.2% [95% CI: 75.2-89.2] vs 70.3% [95% CI: 62.0-78.7], p=0.029) and CMR (77.0% [95% CI: 69.1-84.9] vs 65.5% [95% CI: 56.6-74.4], p=0.047). Following a positive coronary CTA and with the intention to diagnose, CT-QFR, CMR and MPS were equally suitable as rule-in and rule-out modalities. CONCLUSIONS The diagnostic performance of CT-QFR as a second-line test was at least similar to MPS and CMR for the evaluation of obstructive CAD in symptomatic patients presenting with ≥50% diameter stenosis on coronary CTA.
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Affiliation(s)
- Jelmer Westra
- Department of Cardiology, Aarhus University Hospital, Aarhus, Denmark,School of Biochemical engineering, Shanghai Jiao Tong University, Shanghai, China
| | - Zehang Li
- School of Biochemical engineering, Shanghai Jiao Tong University, Shanghai, China
| | - Laust Rasmussen
- Department of Cardiology, Hospital Unit West Jutland, Herning, Denmark
| | - Simon Winther
- Department of Cardiology, Hospital Unit West Jutland, Herning, Denmark
| | - Guanyu Li
- School of Biochemical engineering, Shanghai Jiao Tong University, Shanghai, China
| | - Louise Nissen
- Department of Cardiology, Hospital Unit West Jutland, Herning, Denmark
| | - Steffen Petersen
- Barts Heart Centre, Barts Health NHS Trust, London, United Kingdom,William Harvey Research Institute, NIHR Barts Biomedical Research Centre, Queen Mary University of London, London, United Kingdom
| | - June Ejlersen
- Department of Nuclear Medicine, Hospital Unit West Jutland, Herning Denmark
| | - Christin Isaksen
- Department of Radiology, Regional Hospital of Silkeborg, Silkeborg, Denmark
| | - Lars Gormsen
- Department of Nuclear Medicine, Aarhus University Hospital, Aarhus, Denmark
| | | | - Ashkan Eftekhari
- Department of Cardiology, Aarhus University Hospital, Aarhus, Denmark
| | - Tingwen Weng
- Department of Cardiology, Huadong Hospital Affiliated to Fudan University, Shanghai, China
| | - Xinkai Qu
- Department of Cardiology, Huadong Hospital Affiliated to Fudan University, Shanghai, China
| | - Hans Bøtker
- Department of Cardiology, Aarhus University Hospital, Aarhus, Denmark
| | | | | | - Morten Bøttcher
- Department of Cardiology, Hospital Unit West Jutland, Herning, Denmark
| | - Shengxian Tu
- Shanghai Jiao Tong University, Room 123, Med-X Research Institute, No. 1954 Hua Shan Road, Xuhui District, Shanghai 200030, China
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Wandahl S, Pérez CT, Salling S, Neve HH, Lerche J, Petersen S. The Impact of Construction Labour Productivity on the Renovation Wave. CEB 2021. [DOI: 10.5130/ajceb.v21i3.7688] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/02/2022]
Abstract
The European Green Deal's Renovation Wave aims to renovate 35 million energy-inefficient buildings to reduce carbon dioxide (CO2) emissions by at least 55% by 2030. Historically, efforts to reduce CO2 emissions focused on Operational Energy (OE) of the finished buildings. However, in recent years the Embodied Energy (EE) of the building’s construction process has gained attention because of its essential role in construction renovations projects. In this context, construction efficiency, and more precisely, workers’ efficiency, is a vital catalyst to achieve the European Union (EU) targets. To identify the impact of Construction Labour Productivity (CLP) on the renovation wave an exploratory case study was adopted as a research strategy. Data from four domestic housing renovation projects were gathered. Three specific research goals are outlined. The first is to demonstrate the effect of the adoption of Lean tools and methods to increase CLP. The second is to quantify the correlation between improved productivity and the EE emissions saved during the construction phase. The third goal is to estimate the effect the higher productivity has on OE emissions. The results show that the adoption of several Lean tools and methods has a potential to improve CLP to 45%. This rate of improvement for the 35 million housing units to be renovated could save 6.9 million tonnes CO2e from EE and 386 million tonnes CO2e from OE. This novelty link between process improvements and reduced energy consumption and emissions can support politicians and infrastructural developers in decision-making for a more sustainable construction industry.
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Seraphim A, Knott K, Menacho K, Augusto J, Davies R, Joy G, Hui X, Treibel T, Cooper J, Petersen S, Fontana M, Hughes A, Moon J, Manisty C, Kellman P. Comparison of the prognostic value of stress and rest pulmonary transit time estimation using myocardial perfusion CMR. Eur Heart J Cardiovasc Imaging 2021. [DOI: 10.1093/ehjci/jeab090.017] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Abstract
Abstract
Funding Acknowledgements
Type of funding sources: Foundation. Main funding source(s): British Heart Foundation Clinical Research Training Fellowship
Background
Pulmonary transit time (PTT) is a quantitative biomarker of cardiopulmonary status. Rest PTT was previously shown to predict outcomes in specific disease models, but clinical adoption is hindered but challenges in data acquisition. Whether evaluation of PTT during stress encodes incremental prognostic information has not been previously investigated as scale.
Objectives
To compare the prognostic value of stress and rest PTT derived from a fully automated, in-line method of estimation using perfusion CMR, in a large patient cohort.
Methods
A retrospective two-center study of patients referred clinically for adenosine stress myocardial perfusion assessment using CMR. Analysis of right and left ventricular cavity arterial input function curves from first pass perfusion was performed automatically, allowing the in-line estimation of both rest and stress PTT. Association with major adverse cardiovascular events (MACE) was evaluated. MACE was defined as a composite outcome of myocardial infarction, stroke, heart failure admission and ventricular tachycardia or appropriate ICD treatment (including ICD shock and/or anti-tachycardia pacing).
Results
985 patients (67% male, median age 62 years (IQR 52,71)) were included, with median left ventricular ejection fraction (LVEF) of 62% (IQR 54-69). Median stress PTT was shorter than rest PTT 6.2 (IQR 5.1, 7.7) seconds versus 7.7 (IQR, 6.4, 9.2) seconds. Stress and rest PTT were highly correlated (r = 0.69; p < 0.001). Stress PTT also correlated with LVEF (r=-0.37), stress MBF (r=-0.31), LVEDVi (r = 0.24), LA area index (r = 0.32) (p < 0.001 for all). Over a median follow-up period of 28.6 (IQR, 22.6 35,7) months, MACE occurred in 61 (6.2%) patients. After adjusting for prognostic factors, both rest and stress PTT, independently predicted MACE, but not all-cause mortality. For every 1xSD (2.39s) increase in rest PTT the adjusted hazard ratio (HR) for MACE was 1.43 (95% CI 1.10-1.85, p = 0.007). The hazard ratio for one standard deviation (2.64s) increase in stress PTT was 1.34 (95% CI 1.048-1.723; p = 0.020) after adjusting for age, LVEF, hypertension, diabetes, sex and presence of LGE
Conclusions
In this 2-center study of 985 patients, we deploy a fully automated method of PTT estimation using perfusion mapping with CMR and show that both stress and rest PTT are independently associated with adverse cardiovascular outcomes. In this patient cohort, there is no clear incremental prognostic value of stress PTT, over its evaluation during rest.
Figure 1. Stress and Rest Pulmonary Transit Time estimation using myocardial perfusion CMR
Figure 2. Event-free survival curves for major adverse cardiovascular events (Heart failure hospitalization, myocardial infarction, stroke and ventricular tachycardia/ICD treatment) according to mean rest PTT (8.05seconds) and mean stress PTT (6.7seconds). Log-rank for both p < 0.05
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Affiliation(s)
- A Seraphim
- University College London, Institute of Cardiovascular Science, London, United Kingdom of Great Britain & Northern Ireland
| | - K Knott
- University College London, Institute of Cardiovascular Science, London, United Kingdom of Great Britain & Northern Ireland
| | - K Menacho
- University College London, Institute of Cardiovascular Science, London, United Kingdom of Great Britain & Northern Ireland
| | - J Augusto
- University College London, Institute of Cardiovascular Science, London, United Kingdom of Great Britain & Northern Ireland
| | - R Davies
- University College London, Institute of Cardiovascular Science, London, United Kingdom of Great Britain & Northern Ireland
| | - G Joy
- St Bartholomew"s Hospital, Barts Heart Centre, London, United Kingdom of Great Britain & Northern Ireland
| | - X Hui
- National Institutes of Health, Bethesda, United States of America
| | - T Treibel
- University College London, Institute of Cardiovascular Science, London, United Kingdom of Great Britain & Northern Ireland
| | - J Cooper
- Queen Mary University of London, London, United Kingdom of Great Britain & Northern Ireland
| | - S Petersen
- Queen Mary University of London, London, United Kingdom of Great Britain & Northern Ireland
| | - M Fontana
- Royal Free Hospital, London, United Kingdom of Great Britain & Northern Ireland
| | - A Hughes
- University College London, Institute of Cardiovascular Science, London, United Kingdom of Great Britain & Northern Ireland
| | - J Moon
- University College London, Institute of Cardiovascular Science, London, United Kingdom of Great Britain & Northern Ireland
| | - C Manisty
- University College London, Institute of Cardiovascular Science, London, United Kingdom of Great Britain & Northern Ireland
| | - P Kellman
- National Institutes of Health, Bethesda, United States of America
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Murphy T, Jones D, Friebel R, Uchegbu I, Mohiddin S, Petersen S. A cost analysis of cardiac magnetic resonance imaging in the diagnostic pathway of a population with unexplained acute myocardial injury and normal coronary angiography. Eur Heart J Cardiovasc Imaging 2021. [DOI: 10.1093/ehjci/jeab090.132] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
Abstract
Funding Acknowledgements
Type of funding sources: Public Institution(s). Main funding source(s): National Institute for Health Research (NIHR) Biomedical Research Centre at St Bartholomew"s Hospital London. Irish Cardiac Society
OnBehalf
European Association of Cardiovascular Imaging (EACVI) -Task Force for Cost Effectiveness.
Background
Acute presentations with myocardial injury that occur despite culprit-free coronary angiography were first reported over 70 years ago, with a prevalence between 5-9%. 1-3 There is increasing evidence that a more accurate diagnosis is available and that CMR is a key tool to determine the underlying pathology. This is reflected with the most recent international guidelines advocating for the use of CMR in the diagnostic pathways of this heterogeneous population. However, to date there is no formal assessment of the financial implications of adopting these new guidelines.
Purpose
To determine the financial impact of implementing cardiac magnetic resonance imaging in the diagnostic pathway of a population with unexplained acute myocardial injury and normal coronary angiography in comparison to existing clinical practice.
Methods
We performed a focused cost-benefit analysis using a hypothetical population of 2,000 patients with unexplained acute myocardial injury and normal coronary angiography. The population was split evenly into two groups of either standard, or CMR guided management, and extrapolated over a ten-year period. Standard management was defined as 66% of the population receiving dual antiplatelet therapy (ticagrelor and aspirin) for one year followed by aspirin for life, and the remaining 34% of the population receiving aspirin for life. CMR guided management determined antiplatelet therapy according to the imaging findings. This analysis focused on CMR’s ability to accurately identify those patients who may have had an MI and facilitate tailored treatment with evidence based dual antiplatelet therapy. Costs and rates were defined in Table 1. A one-way sensitivity analysis was also performed to determine the variables with largest impact on the costs. Each variable was varied by +/- 20% and the change in cost determined at year 10.
Results
Using CMR in the diagnostic pathway resulted in an increased cost of £72,656 in the first year. After year 7, CMR guided practice becomes cost neutral, resulting in cost saving of £24,054 over a ten-year period in a population of 1000 patients. Figure 1. Utilizing CMR in this population also resulted in 7 fewer myocardial infarctions and 14 fewer major bleeding events over a ten-year time horizon.
The three most sensitive variables were, in decreasing order, the cost of CMR, the cost of ticagrelor and the percentage of the population with MI requiring DAPT. A 20% change from baseline resulted in a 320%, 247% and 162% change in costs at 10 years, respectively.
Conclusion
Utilizing CMR in this population may be associated with reduced costs in the medium to long term. The initial increased cost of CMR is offset over time, by delivering a more personalised, higher quality level of care to patients.
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Affiliation(s)
- T Murphy
- Barts Heart Centre, London, United Kingdom of Great Britain & Northern Ireland
| | - D Jones
- Barts Heart Centre, London, United Kingdom of Great Britain & Northern Ireland
| | - R Friebel
- LONDON SCHOOL OF ECONOMICS AND POLITICAL SCIENCE, London, United Kingdom of Great Britain & Northern Ireland
| | - I Uchegbu
- Queen Mary University of London, London, United Kingdom of Great Britain & Northern Ireland
| | - S Mohiddin
- Barts Heart Centre, London, United Kingdom of Great Britain & Northern Ireland
| | - S Petersen
- Queen Mary University of London, London, United Kingdom of Great Britain & Northern Ireland
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Bernasconi SM, Daëron M, Bergmann KD, Bonifacie M, Meckler AN, Affek HP, Anderson N, Bajnai D, Barkan E, Beverly E, Blamart D, Burgener L, Calmels D, Chaduteau C, Clog M, Davidheiser‐Kroll B, Davies A, Dux F, Eiler J, Elliott B, Fetrow AC, Fiebig J, Goldberg S, Hermoso M, Huntington KW, Hyland E, Ingalls M, Jaggi M, John CM, Jost AB, Katz S, Kelson J, Kluge T, Kocken IJ, Laskar A, Leutert TJ, Liang D, Lucarelli J, Mackey TJ, Mangenot X, Meinicke N, Modestou SE, Müller IA, Murray S, Neary A, Packard N, Passey BH, Pelletier E, Petersen S, Piasecki A, Schauer A, Snell KE, Swart PK, Tripati A, Upadhyay D, Vennemann T, Winkelstern I, Yarian D, Yoshida N, Zhang N, Ziegler M. InterCarb: A Community Effort to Improve Interlaboratory Standardization of the Carbonate Clumped Isotope Thermometer Using Carbonate Standards. Geochem Geophys Geosyst 2021; 22:e2020GC009588. [PMID: 34220359 PMCID: PMC8244079 DOI: 10.1029/2020gc009588] [Citation(s) in RCA: 21] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/11/2020] [Revised: 03/18/2021] [Accepted: 03/19/2021] [Indexed: 06/12/2023]
Abstract
Increased use and improved methodology of carbonate clumped isotope thermometry has greatly enhanced our ability to interrogate a suite of Earth-system processes. However, interlaboratory discrepancies in quantifying carbonate clumped isotope (Δ47) measurements persist, and their specific sources remain unclear. To address interlaboratory differences, we first provide consensus values from the clumped isotope community for four carbonate standards relative to heated and equilibrated gases with 1,819 individual analyses from 10 laboratories. Then we analyzed the four carbonate standards along with three additional standards, spanning a broad range of δ47 and Δ47 values, for a total of 5,329 analyses on 25 individual mass spectrometers from 22 different laboratories. Treating three of the materials as known standards and the other four as unknowns, we find that the use of carbonate reference materials is a robust method for standardization that yields interlaboratory discrepancies entirely consistent with intralaboratory analytical uncertainties. Carbonate reference materials, along with measurement and data processing practices described herein, provide the carbonate clumped isotope community with a robust approach to achieve interlaboratory agreement as we continue to use and improve this powerful geochemical tool. We propose that carbonate clumped isotope data normalized to the carbonate reference materials described in this publication should be reported as Δ47 (I-CDES) values for Intercarb-Carbon Dioxide Equilibrium Scale.
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Affiliation(s)
| | - M. Daëron
- Laboratoire des Sciences du Climat et de l’EnvironnementLSCE/IPSLCEA‐CNRS‐UVSQUniversité Paris‐SaclayGif‐sur‐YvetteFrance
| | - K. D. Bergmann
- Department of Earth, Atmospheric and Planetary SciencesMassachusetts Institute of TechnologyCambridgeMAUSA
| | - M. Bonifacie
- Université de ParisInstitut de Physique du Globe de ParisCNRSParisFrance
| | - A. N. Meckler
- Bjerknes Centre for Climate Research and Department of Earth ScienceUniversity of BergenBergenNorway
| | - H. P. Affek
- Institute of Earth SciencesHebrew University of JerusalemJerusalemIsrael
| | - N. Anderson
- Department of Earth, Atmospheric and Planetary SciencesMassachusetts Institute of TechnologyCambridgeMAUSA
| | - D. Bajnai
- Institute of GeosciencesGoethe University FrankfurtFrankfurt am MainGermany
| | - E. Barkan
- Institute of Earth SciencesHebrew University of JerusalemJerusalemIsrael
| | - E. Beverly
- Now at Department of Earth and Atmospheric SciencesUniversity of HoustonHoustonTXUSA
- Department of Earth and Environmental SciencesUniversity of MichiganAnn ArborMIUSA
| | - D. Blamart
- Laboratoire des Sciences du Climat et de l’EnvironnementLSCE/IPSLCEA‐CNRS‐UVSQUniversité Paris‐SaclayGif‐sur‐YvetteFrance
| | - L. Burgener
- Department of Marine, Earth and Atmospheric SciencesNorth Carolina State UniversityRaleighNCUSA
| | - D. Calmels
- Université de ParisInstitut de Physique du Globe de ParisCNRSParisFrance
- Now at Geosciences Paris Sud (GEOPS)Université Paris‐SaclayCNRSOrsayFrance
| | - C. Chaduteau
- Université de ParisInstitut de Physique du Globe de ParisCNRSParisFrance
| | - M. Clog
- Scottish Universities Environmental Research Centre (SUERC)ScotlandUK
| | | | - A. Davies
- Now at Stockholm UniversityStockholmSweden
- Imperial CollegeLondonUK
| | - F. Dux
- Now at School of Earth and Life SciencesUniversity of WollongongWollongongAustralia
- School of GeographyUniversity of MelbourneMelbourneAustralia
| | - J. Eiler
- Geological and Planetary SciencesCalifornia Institute of TechnologyPasadenaCAUSA
| | - B. Elliott
- Department of Earth, Planetary, and Space SciencesUniversity of California Los AngelesLos AngelesCAUSA
| | | | - J. Fiebig
- Institute of GeosciencesGoethe University FrankfurtFrankfurt am MainGermany
| | - S. Goldberg
- Department of Earth, Atmospheric and Planetary SciencesMassachusetts Institute of TechnologyCambridgeMAUSA
| | - M. Hermoso
- Université de ParisInstitut de Physique du Globe de ParisCNRSParisFrance
- Univ. Littoral Côte d’OpaleUniv. LilleCNRSLaboratoire d’Océanologie et de Géosciences (UMR 8187 LOG)WimereuxFrance
| | | | - E. Hyland
- Department of Marine, Earth and Atmospheric SciencesNorth Carolina State UniversityRaleighNCUSA
| | - M. Ingalls
- Geological and Planetary SciencesCalifornia Institute of TechnologyPasadenaCAUSA
- Now at Department of GeosciencesThe Pennsylvania State UniversityUniversity ParkPAUSA
| | - M. Jaggi
- Geological InstituteETH ZürichZürichSwitzerland
| | | | - A. B. Jost
- Department of Earth, Atmospheric and Planetary SciencesMassachusetts Institute of TechnologyCambridgeMAUSA
| | - S. Katz
- Department of Earth and Environmental SciencesUniversity of MichiganAnn ArborMIUSA
| | - J. Kelson
- Department of Earth and Environmental SciencesUniversity of MichiganAnn ArborMIUSA
| | - T. Kluge
- Imperial CollegeLondonUK
- Now at Karlsruher Institut für Technologie KITKarlsruheGermany
| | - I. J. Kocken
- Department of Earth SciencesUniversity of UtrechtUtrechtThe Netherlands
| | - A. Laskar
- Institute of Earth SciencesAcademia SinicaTaipeiTaiwan
| | - T. J. Leutert
- Bjerknes Centre for Climate Research and Department of Earth ScienceUniversity of BergenBergenNorway
- Now at Max Planck Institute for ChemistryMainzGermany
| | - D. Liang
- Institute of Earth SciencesAcademia SinicaTaipeiTaiwan
| | - J. Lucarelli
- Department of Earth, Planetary, and Space SciencesUniversity of California Los AngelesLos AngelesCAUSA
| | - T. J. Mackey
- Department of Earth, Atmospheric and Planetary SciencesMassachusetts Institute of TechnologyCambridgeMAUSA
- Now at Department of Earth and Planetary SciencesUniversity of New MexicoAlbuquerqueNMUSA
| | - X. Mangenot
- Université de ParisInstitut de Physique du Globe de ParisCNRSParisFrance
- Geological and Planetary SciencesCalifornia Institute of TechnologyPasadenaCAUSA
| | - N. Meinicke
- Bjerknes Centre for Climate Research and Department of Earth ScienceUniversity of BergenBergenNorway
| | - S. E. Modestou
- Bjerknes Centre for Climate Research and Department of Earth ScienceUniversity of BergenBergenNorway
| | - I. A. Müller
- Department of Earth SciencesUniversity of UtrechtUtrechtThe Netherlands
| | | | - A. Neary
- Department of Earth and Environmental SciencesUniversity of MichiganAnn ArborMIUSA
| | - N. Packard
- Department of Earth and Environmental SciencesUniversity of MichiganAnn ArborMIUSA
| | - B. H. Passey
- Department of Earth and Environmental SciencesUniversity of MichiganAnn ArborMIUSA
| | - E. Pelletier
- Department of Earth and Environmental SciencesUniversity of MichiganAnn ArborMIUSA
| | - S. Petersen
- Department of Earth and Environmental SciencesUniversity of MichiganAnn ArborMIUSA
| | - A. Piasecki
- Bjerknes Centre for Climate Research and Department of Earth ScienceUniversity of BergenBergenNorway
- Now at Department of Earth SciencesDartmouth CollegeHanoverNHUSA
| | | | | | - P. K. Swart
- Department of Marine GeosciencesRostiel School of Marine and Atmospheric SciencesUniversity of MiamiMiamiFLUSA
| | - A. Tripati
- Department of Earth, Planetary, and Space SciencesUniversity of California Los AngelesLos AngelesCAUSA
| | - D. Upadhyay
- Department of Earth, Planetary, and Space SciencesUniversity of California Los AngelesLos AngelesCAUSA
| | - T. Vennemann
- Institute of Earth Surface DynamicsUniversity of LausanneLausanneSwitzerland
| | - I. Winkelstern
- Department of Earth and Environmental SciencesUniversity of MichiganAnn ArborMIUSA
- Now at Geology DepartmentGrand Valley State UniversityAllendaleMIUSA
| | - D. Yarian
- Department of Earth and Environmental SciencesUniversity of MichiganAnn ArborMIUSA
| | - N. Yoshida
- Earth‐Life Science InstituteTokyo Institute of TechnologyTokyoJapan
- National Institute of Information and Communications TechnologyTokyoJapan
| | - N. Zhang
- Earth‐Life Science InstituteTokyo Institute of TechnologyTokyoJapan
| | - M. Ziegler
- Department of Earth SciencesUniversity of UtrechtUtrechtThe Netherlands
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8
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Curtis EM, D'Angelo S, Ashai S, Ward K, Raisi-Estbragh Z, Petersen S, Cooper C, Harvey NC. O02 Low birthweight is associated with decreased grip strength and reduced leg muscle mass in middle age: findings from the UK Biobank imaging enhancement. Rheumatology (Oxford) 2021. [DOI: 10.1093/rheumatology/keab246.001] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Abstract
Abstract
Background/Aims
Low birthweight has been shown to be associated with poorer musculoskeletal health in later life in a variety of epidemiological studies. We investigated relationships between birthweight and magnetic resonance imaging (MRI) measures of muscle volume, and between birthweight and measures of grip strength in UK Biobank.
Methods
UK Biobank is a large prospective cohort of men and women aged 40-69 years, including a detailed baseline assessment in which birthweight was collected by self-report. A subset of participants underwent MRI examination with the dual-echo Dixon Vibe protocol, from neck to knees. Automated body composition analysis was performed using the AMRA ProfilerTM system, to segment and quantify total thigh muscle volume. Grip strength was assessed using a Jamar hydraulic hand dynamometer. Associations between birthweight, and thigh muscle volume or grip strength (expressed as Fisher-Yates z-scores) were investigated using multivariate linear regression analysis. This study was conducted under generic ethics approval (NRES:11/NW/0382).
Results
13,048 participants [5,508 men, mean (SD) age 61.9 (7.6) years and 7,540 women, age 60.9 (7.2) years] were able to recall their birthweight and underwent MRI body composition analysis or had a measurement of grip strength. In both men and women, higher birthweight was associated with greater thigh muscle volume (adjusted for age and body mass index (BMI)): men, β (95% CI): 0.23 (0.16,0.30) SD/kg, p < 0.001; women, β (95% CI): 0.28 (0.22,0.35) SD/kg, p < 0.001. Higher birthweight was also associated with higher grip strength (adjusted for age and height); men, β (95% CI): 0.09 (0.06,0.13) SD/kg, p < 0.001; women, β (95% CI): 0.06 (0.02,0.09) SD/kg, p = 0.001. All associations were robust to additional adjustment for current smoking and physical activity.
Conclusion
Birthweight was positively associated with MRI measures of thigh muscle volume and grip strength in a population of middle-aged UK adults. These findings provide novel evidence in support of the developmental programming hypothesis and suggest that interventions to optimise birthweight may help to prevent sarcopenia and reduce the risk of falls in future generations. (Project 3593)
Disclosure
E.M. Curtis: None. S. D'Angelo: None. S. Ashai: None. K. Ward: None. Z. Raisi-Estbragh: None. S. Petersen: None. C. Cooper: None. N.C. Harvey: None.
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Affiliation(s)
- Elizabeth M Curtis
- University of Southampton, MRC Lifecourse Epidemiology Unit, Southampton, UNITED KINGDOM
| | - Stefania D'Angelo
- University of Southampton, MRC Lifecourse Epidemiology Unit, Southampton, UNITED KINGDOM
| | - Shanze Ashai
- University of Southampton, MRC Lifecourse Epidemiology Unit, Southampton, UNITED KINGDOM
| | - Kate Ward
- University of Southampton, MRC Lifecourse Epidemiology Unit, Southampton, UNITED KINGDOM
| | - Zahra Raisi-Estbragh
- NIHR Advanced Imaging, NIHR Barts Biomedical Research Centre, Queen Mary University of London, London, UNITED KINGDOM
| | - Steffen Petersen
- NIHR Advanced Imaging, NIHR Barts Biomedical Research Centre, Queen Mary University of London, London, UNITED KINGDOM
| | - Cyrus Cooper
- University of Southampton, MRC Lifecourse Epidemiology Unit, Southampton, UNITED KINGDOM
| | - Nicholas C Harvey
- University of Southampton, MRC Lifecourse Epidemiology Unit, Southampton, UNITED KINGDOM
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9
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Kumaravel B, Jenkins H, Chepkin S, Kirisnathas S, Hearn J, Stocker CJ, Petersen S. A prospective study evaluating the integration of a multifaceted evidence-based medicine curriculum into early years in an undergraduate medical school. BMC Med Educ 2020; 20:278. [PMID: 32838775 PMCID: PMC7445898 DOI: 10.1186/s12909-020-02140-2] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/30/2020] [Accepted: 07/06/2020] [Indexed: 05/21/2023]
Abstract
BACKGROUND The importance of ensuring medical students are equipped with the skills to be able to practice evidence-based medicine (EBM) has been increasingly recognized in recent years. However, there is limited information on an effective EBM curriculum for undergraduate medical schools. This study aims to test the feasibility of integrating a multifaceted EBM curriculum in the early years of an undergraduate medical school. This was subsequently evaluated using the validated Fresno test and students' self-reported knowledge and attitudes as they progressed through the curriculum. METHODS EBM was integrated horizontally and vertically into the curriculum into the first 2 years of undergraduate medical school. First year medical students were recruited to participate in the study. The 212-point Fresno test was administered along with a locally developed questionnaire at baseline before EBM teaching in year one and at the end of EBM teaching in year two. RESULTS Thirty-one students participated at baseline and 55 students participated at the end of second year EBM teaching. For the 18 students who completed the Fresno at both time points, the average score increased by 38.7 marks (p < 0.001) after EBM teaching. Students felt confident in formulating clinical questions and in critically appraising journal articles after EBM teaching. EBM was perceived to be important to their future practice as a doctor and for improving patient outcomes at both time points. CONCLUSIONS It has been feasible to integrate a multifaceted, EBM curriculum from the first year of an undergraduate medical program. Early evaluation of the curriculum using the Fresno test has shown a significant increase in students' EBM knowledge. The curriculum also demonstrated an increase in students' perceptions of the clinical relevance of EBM in their developing practice.
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Affiliation(s)
- B Kumaravel
- University of Buckingham Medical School, Hunter Street, Buckingham, MK18 1EG, UK.
| | | | - S Chepkin
- East and North Hertfordshire Clinical Commissioning Group, Welwyn Garden City, UK
| | - S Kirisnathas
- University of Buckingham Medical School, Hunter Street, Buckingham, MK18 1EG, UK
| | - J Hearn
- Manchester Metropolitan University, Manchester, UK
| | - C J Stocker
- University of Buckingham Medical School, Hunter Street, Buckingham, MK18 1EG, UK
| | - S Petersen
- University of Buckingham Medical School, Hunter Street, Buckingham, MK18 1EG, UK
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10
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Skulstad H, Cosyns B, Popescu BA, Galderisi M, Salvo GD, Donal E, Petersen S, Gimelli A, Haugaa KH, Muraru D, Almeida AG, Schulz-Menger J, Dweck MR, Pontone G, Sade LE, Gerber B, Maurovich-Horvat P, Bharucha T, Cameli M, Magne J, Westwood M, Maurer G, Edvardsen T. COVID-19 pandemic and cardiac imaging: EACVI recommendations on precautions, indications, prioritization, and protection for patients and healthcare personnel. Eur Heart J Cardiovasc Imaging 2020; 21:592-598. [PMID: 32242891 PMCID: PMC7184341 DOI: 10.1093/ehjci/jeaa072] [Citation(s) in RCA: 201] [Impact Index Per Article: 50.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/25/2020] [Accepted: 03/25/2020] [Indexed: 02/06/2023] Open
Affiliation(s)
- Helge Skulstad
- Department of Cardiology, Oslo University Hospital, Rikshospitalet, Oslo, Norway.,Faculty of Medicine, University of Oslo, Oslo, Norway
| | - Bernard Cosyns
- Centrum voor Hart en Vaatziekten (CHVZ), Universitair Ziekenhuis Brussel, Vrij Universiteit van Brussel, Brussels, Belgium
| | - Bogdan A Popescu
- Department of Cardiology, University of Medicine and Pharmacy 'Carol Davila'-Euroecolab, Emergency Institute for Cardiovascular Diseases 'Prof. Dr. C. C. Iliescu', Bucharest, Romania
| | - Maurizio Galderisi
- Department of Advanced Biomedical Sciences, Federico II University Hospital, Naples, Italy
| | | | - Erwan Donal
- University of Rennes, CHU Rennes, Inserm, LTSI-UMR 1099, Rennes, France
| | - Steffen Petersen
- William Harvey Research Institute, NIHR Barts Biomedical Research Centre, Queen Mary University of London, London, UK.,Barts Heart Centre, St Bartholomew's Hospital, Barts Health NHS Trust, London, UK
| | | | - Kristina H Haugaa
- Department of Cardiology, Oslo University Hospital, Rikshospitalet, Oslo, Norway.,Faculty of Medicine, University of Oslo, Oslo, Norway
| | - Denisa Muraru
- Department of Medicine and Surgery, University of Milano-Bicocca, Milan, Italy
| | - Ana G Almeida
- Cardiology, University Hospital Santa Maria /CHLN, CCUL, Faculty of Medicine of Lisbon University, Lisbon, Portugal
| | - Jeanette Schulz-Menger
- Charité Medical Faculty of the Humboldt University Berlin, ECRC, Berlin, Germany.,DZHK, Partner site, Berlin, Germany.,Helios Clinics Berlin-Buch, Cardiology, Berlin, Germany
| | - Marc R Dweck
- Centre for Cardiovascular Science, University of Edinburgh, UK
| | - Gianluca Pontone
- Department of Cardiovascular Imaging, Centro Cardiologico Monzino IRCCS, Milan, Italy
| | - Leyla Elif Sade
- Department of Cardiology, University of Baskent, Ankara, Turkey
| | - Bernhard Gerber
- Division of Cardiology, Department of Cardiovascular Diseases, Cliniques Universitaires St. Luc, Pôle de Recherche Cardiovasculaire, Institut de Recherche Expérimentale et Clinique, Université Catholique de Louvain, Brussels, Belgium
| | | | - Tara Bharucha
- Department of Congenital Cardiology, University Hospital Southampton NHS Foundation Trust, Southampton, UK
| | - Matteo Cameli
- Department of Medical Biotechnologies, Division of Cardiology, University of Siena, Siena, Italy
| | - Julien Magne
- CHU Limoges, Hôpital Dupuytren, Service Cardiologie, Limoges, France.,INSERM U1094, Univ. Limoges, CHU Limoges, IRD, U1094, GEIST, 2, Limoges, France
| | - Mark Westwood
- Barts Heart Centre, St Bartholomew's Hospital, Barts Health NHS Trust, London, UK
| | - Gerald Maurer
- Division of Cardiology, Department of Internal Medicine II, Medical University of Vienna, Vienna, Austria
| | - Thor Edvardsen
- Department of Cardiology, Oslo University Hospital, Rikshospitalet, Oslo, Norway.,Faculty of Medicine, University of Oslo, Oslo, Norway
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11
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Christensen SL, Munro G, Petersen S, Shabir A, Jansen-Olesen I, Kristensen DM, Olesen J. ATP sensitive potassium (K ATP) channel inhibition: A promising new drug target for migraine. Cephalalgia 2020; 40:650-664. [PMID: 32418458 DOI: 10.1177/0333102420925513] [Citation(s) in RCA: 29] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
BACKGROUND Recently, the adenosine triphosphate (ATP) sensitive potassium channel opener levcromakalim was shown to induce migraine attacks with a far higher incidence than any previous provoking agent such as calcitonin gene-related peptide. Here, we show efficacy of ATP sensitive potassium channel inhibitors in two validated rodent models of migraine. METHODS In female spontaneous trigeminal allodynic rats, the sensitivity of the frontal region of the head was tested by an electronic von Frey filament device. In mice, cutaneous hypersensitivity was induced by repeated glyceryl trinitrate or levcromakalim injections over nine days, as measured with von Frey filaments in the hindpaw. Release of calcitonin gene-related peptide from dura mater and trigeminal ganglion was studied ex vivo. RESULTS The ATP sensitive potassium channel inhibitor glibenclamide attenuated the spontaneous cephalic hypersensitivity in spontaneous trigeminal allodynic rats and glyceryl trinitrate-induced hypersensitivity of the hindpaw in mice. It also inhibited CGRP release from dura mater and the trigeminal ganglion isolated from spontaneous trigeminal allodynic rats. The hypersensitivity was also diminished by the structurally different ATP sensitive potassium channel inhibitor gliquidone. Mice injected with the ATP sensitive potassium channel opener levcromakalim developed a progressive hypersensitivity that was completely blocked by glibenclamide, confirming target engagement. CONCLUSION The results suggest that ATP sensitive potassium channel inhibitors could be novel and highly effective drugs in the treatment of migraine.
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Affiliation(s)
- Sarah L Christensen
- Danish Headache Center, Department of Neurology, Glostrup Research Institute, Righospitalet Glostrup, Glostrup, Denmark
| | - Gordon Munro
- Danish Headache Center, Department of Neurology, Glostrup Research Institute, Righospitalet Glostrup, Glostrup, Denmark
| | - Steffen Petersen
- Danish Headache Center, Department of Neurology, Glostrup Research Institute, Righospitalet Glostrup, Glostrup, Denmark
| | - Anmool Shabir
- Danish Headache Center, Department of Neurology, Glostrup Research Institute, Righospitalet Glostrup, Glostrup, Denmark
| | - Inger Jansen-Olesen
- Danish Headache Center, Department of Neurology, Glostrup Research Institute, Righospitalet Glostrup, Glostrup, Denmark
| | - David M Kristensen
- Danish Headache Center, Department of Neurology, Glostrup Research Institute, Righospitalet Glostrup, Glostrup, Denmark.,Univ Rennes, Inserm, EHESP, Irset (Research Center for Environmental and Occupational Health), Rennes, France
| | - Jes Olesen
- Danish Headache Center, Department of Neurology, Glostrup Research Institute, Righospitalet Glostrup, Glostrup, Denmark
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12
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Mach F, Baigent C, Catapano AL, Koskinas KC, Casula M, Badimon L, Chapman MJ, De Backer GG, Delgado V, Ference BA, Graham IM, Halliday A, Landmesser U, Mihaylova B, Pedersen TR, Riccardi G, Richter DJ, Sabatine MS, Taskinen MR, Tokgozoglu L, Wiklund O, Nibouche D, Zelveian PH, Siostrzonek P, Najafov R, van de Borne P, Pojskic B, Postadzhiyan A, Kypris L, Špinar J, Larsen ML, Eldin HS, Viigimaa M, Strandberg TE, Ferrieres J, Agladze R, Laufs U, Rallidis L, Bajnok L, Gudjonsson T, Maher V, Henkin Y, Gulizia MM, Mussagaliyeva A, Bajraktari G, Kerimkulova A, Latkovskis G, Hamoui O, Slapikas R, Visser L, Dingli P, Ivanov V, Boskovic A, Nazzi M, Visseren F, Mitevska I, Retterstol K, Jankowski P, Fontes-Carvalho R, Gaita D, Ezhov M, Foscoli M, Giga V, Pella D, Fras Z, Perez de Isla L, Hagstrom E, Lehmann R, Abid L, Ozdogan O, Mitchenko O, Patel RS, Windecker S, Aboyans V, Baigent C, Collet JP, Dean V, Delgado V, Fitzsimons D, Gale CP, Grobbee D, Halvorsen S, Hindricks G, Iung B, Juni P, Katus HA, Landmesser U, Leclercq C, Lettino M, Lewis BS, Merkely B, Mueller C, Petersen S, Petronio AS, Richter DJ, Roffi M, Shlyakhto E, Simpson IA, Sousa-Uva M, Touyz RM. Corrigendum to "2019 ESC/EAS Guidelines for the management of dyslipidaemias: lipid modification to reduce cardiovascular risk" [Atherosclerosis 290 (2019) 140-205]. Atherosclerosis 2020; 294:80-82. [PMID: 31870624 DOI: 10.1016/j.atherosclerosis.2019.12.004] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
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13
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Fung K, Biasiolli L, Hann E, Ramirez J, Lukaschuk E, Aung N, Paiva J, Werys K, Sanghvi M, Thomson R, Rayner J, Puchta H, Moon N, Thomas K, Lee A, Piechnik S, Neubauer S, Petersen S, Munroe P. 3.2 First Genome-Wide Association Study of Cardiovascular Magnetic Resonance Derived Aortic Distensibility Reveals 7 Loci. Artery Res 2020. [DOI: 10.2991/artres.k.191224.015] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/01/2022] Open
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14
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Mach F, Baigent C, Catapano AL, Koskinas KC, Casula M, Badimon L, Chapman MJ, De Backer GG, Delgado V, Ference BA, Graham IM, Halliday A, Landmesser U, Mihaylova B, Pedersen TR, Riccardi G, Richter DJ, Sabatine MS, Taskinen MR, Tokgozoglu L, Wiklund O, Nibouche D, Zelveian PH, Siostrzonek P, Najafov R, van de Borne P, Pojskic B, Postadzhiyan A, Kypris L, Špinar J, Larsen ML, Eldin HS, Viigimaa M, Strandberg TE, Ferrieres J, Agladze R, Laufs U, Rallidis L, Bajnok L, Gudjonsson T, Maher V, Henkin Y, Gulizia MM, Mussagaliyeva A, Bajraktari G, Kerimkulova A, Latkovskis G, Hamoui O, Slapikas R, Visser L, Dingli P, Ivanov V, Boskovic A, Nazzi M, Visseren F, Mitevska I, Retterstol K, Jankowski P, Fontes-Carvalho R, Gaita D, Ezhov M, Foscoli M, Giga V, Pella D, Fras Z, de Isla LP, Hagstrom E, Lehmann R, Abid L, Ozdogan O, Mitchenko O, Patel RS, Windecker S, Aboyans V, Baigent C, Collet JP, Dean V, Delgado V, Fitzsimons D, Gale CP, Grobbee D, Halvorsen S, Hindricks G, Iung B, Juni P, Katus HA, Landmesser U, Leclercq C, Lettino M, Lewis BS, Merkely B, Mueller C, Petersen S, Petronio AS, Richter DJ, Roffi M, Shlyakhto E, Simpson IA, Sousa-Uva M, Touyz RM. Erratum to "2019 ESC/EAS guidelines for the management of dyslipidemias: Lipid modification to reduce cardiovascular risk" [Atherosclerosis 290 (2019) 140-205]. Atherosclerosis 2020; 292:160-162. [PMID: 31811963 DOI: 10.1016/j.atherosclerosis.2019.11.020] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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15
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16
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Bhuva A, Bai W, Lau C, Davies R, Ye Y, Bulluck H, McAlindon E, Culotta V, Swoboda P, Captur G, Treibel T, Augusto J, Knott K, Seraphim A, Cole G, Petersen S, Edwards N, Greenwood J, Bucciarelli-Ducci C, Hughes A, Rueckert D, Moon J, Manisty C. A Multicenter, Scan-Rescan, Human and Machine Learning CMR Study to Test Generalizability and Precision in Imaging Biomarker Analysis. Circ Cardiovasc Imaging 2019; 12:e009214. [PMID: 31547689 DOI: 10.1161/circimaging.119.009214] [Citation(s) in RCA: 61] [Impact Index Per Article: 12.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/03/2019] [Accepted: 07/25/2019] [Indexed: 12/31/2022]
Abstract
BACKGROUND Automated analysis of cardiac structure and function using machine learning (ML) has great potential, but is currently hindered by poor generalizability. Comparison is traditionally against clinicians as a reference, ignoring inherent human inter- and intraobserver error, and ensuring that ML cannot demonstrate superiority. Measuring precision (scan:rescan reproducibility) addresses this. We compared precision of ML and humans using a multicenter, multi-disease, scan:rescan cardiovascular magnetic resonance data set. METHODS One hundred ten patients (5 disease categories, 5 institutions, 2 scanner manufacturers, and 2 field strengths) underwent scan:rescan cardiovascular magnetic resonance (96% within one week). After identification of the most precise human technique, left ventricular chamber volumes, mass, and ejection fraction were measured by an expert, a trained junior clinician, and a fully automated convolutional neural network trained on 599 independent multicenter disease cases. Scan:rescan coefficient of variation and 1000 bootstrapped 95% CIs were calculated and compared using mixed linear effects models. RESULTS Clinicians can be confident in detecting a 9% change in left ventricular ejection fraction, with greater than half of coefficient of variation attributable to intraobserver variation. Expert, trained junior, and automated scan:rescan precision were similar (for left ventricular ejection fraction, coefficient of variation 6.1 [5.2%-7.1%], P=0.2581; 8.3 [5.6%-10.3%], P=0.3653; 8.8 [6.1%-11.1%], P=0.8620). Automated analysis was 186× faster than humans (0.07 versus 13 minutes). CONCLUSIONS Automated ML analysis is faster with similar precision to the most precise human techniques, even when challenged with real-world scan:rescan data. Assessment of multicenter, multi-vendor, multi-field strength scan:rescan data (available at www.thevolumesresource.com) permits a generalizable assessment of ML precision and may facilitate direct translation of ML to clinical practice.
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Affiliation(s)
- Anish Bhuva
- Institute for Cardiovascular Science, University College London, United Kingdom
- Department of Cardiovascular Imaging, Barts Heart Centre, Barts Health NHS Trust, London, United Kingdom
| | - Wenjia Bai
- Institute for Cardiovascular Science, University College London, United Kingdom
| | - Clement Lau
- Institute for Cardiovascular Science, University College London, United Kingdom
| | - Rhodri Davies
- Institute for Cardiovascular Science, University College London, United Kingdom
- Department of Cardiovascular Imaging, Barts Heart Centre, Barts Health NHS Trust, London, United Kingdom
| | - Yang Ye
- Institute for Cardiovascular Science, University College London, United Kingdom
- Department of Cardiovascular Imaging, Barts Heart Centre, Barts Health NHS Trust, London, United Kingdom
| | - Heeraj Bulluck
- Institute for Cardiovascular Science, University College London, United Kingdom
- Department of Cardiovascular Imaging, Barts Heart Centre, Barts Health NHS Trust, London, United Kingdom
| | - Elisa McAlindon
- Institute for Cardiovascular Science, University College London, United Kingdom
- Department of Cardiovascular Imaging, Barts Heart Centre, Barts Health NHS Trust, London, United Kingdom
| | - Veronica Culotta
- Institute for Cardiovascular Science, University College London, United Kingdom
| | - Peter Swoboda
- Institute for Cardiovascular Science, University College London, United Kingdom
- Department of Cardiovascular Imaging, Barts Heart Centre, Barts Health NHS Trust, London, United Kingdom
| | - Gabriella Captur
- Institute for Cardiovascular Science, University College London, United Kingdom
- Department of Cardiovascular Imaging, Barts Heart Centre, Barts Health NHS Trust, London, United Kingdom
| | - Thomas Treibel
- Department of Cardiovascular Imaging, Barts Heart Centre, Barts Health NHS Trust, London, United Kingdom
- Imperial College London, South Kensington Campus, United Kingdom. William Harvey Research Institute, NIHR Barts Biomedical Research Centre, Queen Mary University of London, United Kingdom
| | - Joao Augusto
- Department of Cardiovascular Imaging, Barts Heart Centre, Barts Health NHS Trust, London, United Kingdom
| | - Kristopher Knott
- Department of Cardiovascular Imaging, Barts Heart Centre, Barts Health NHS Trust, London, United Kingdom
- Department of Cardiology, Sir Run Run Shaw Hospital, Zhejiang University, Hangzhou, People's Republic of China
| | - Andreas Seraphim
- Department of Cardiovascular Imaging, Barts Heart Centre, Barts Health NHS Trust, London, United Kingdom
| | - Graham Cole
- Department of Cardiovascular Imaging, Barts Heart Centre, Barts Health NHS Trust, London, United Kingdom
- Imperial College London, South Kensington Campus, United Kingdom. William Harvey Research Institute, NIHR Barts Biomedical Research Centre, Queen Mary University of London, United Kingdom
| | - Steffen Petersen
- Data Science Institute and Department of Medicine (W.B.),
Department of Computing
| | | | - John Greenwood
- Bristol Heart Institute, Bristol NIHR Biomedical Research Centre, University Hospitals Bristol NHS Trust and University
of Bristol, United Kingdom
- Heart and Lung Centre, New Cross Hospital, Wolverhampton, United Kingdom
| | - Chiara Bucciarelli-Ducci
- Bristol Heart Institute, Bristol NIHR Biomedical Research Centre, University Hospitals Bristol NHS Trust and University
of Bristol, United Kingdom
| | - Alun Hughes
- Multidisciplinary Cardiovascular Research Centre and Division of Biomedical Imaging, Leeds Institute of Cardiovascular
and Metabolic Medicine, University of Leeds, United Kingdom
| | - Daniel Rueckert
- Multidisciplinary Cardiovascular Research Centre and Division of Biomedical Imaging, Leeds Institute of Cardiovascular
and Metabolic Medicine, University of Leeds, United Kingdom
| | - James Moon
- Imperial College London, National Heart and Lung Institute, Hammersmith Hospital, United Kingdom
| | - Charlotte Manisty
- Auckland City Hospital, New Zealand and Institute of Cardiovascular Science, University of Birmingham
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17
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Christensen SL, Petersen S, Kristensen DM, Olesen J, Munro G. Targeting CGRP via receptor antagonism and antibody neutralisation in two distinct rodent models of migraine-like pain. Cephalalgia 2019; 39:1827-1837. [DOI: 10.1177/0333102419861726] [Citation(s) in RCA: 27] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
Abstract
Introduction Rodent disease models can play an indispensable role in drug development. Confirming that translationally-relevant disease mechanisms are engaged in such models is a crucial facet of this process. Accordingly, we have validated the role of calcitonin gene-related peptide signaling in a mouse model of glyceryl trinitrate-provoked migraine-like pain and a spontaneous rat model of migraine-like pain by assessing their pharmacological responsiveness to the small molecule calcitonin gene-related peptide receptor antagonist olcegepant, and the humanised monoclonal calcitonin gene-related peptide antibody ALD405. Methods Cutaneous sensitivity to hind paw, and periorbital mechanical stimulation were used as surrogate markers of activation of relevant pain pathways in each respective model. Separate experiments were performed to identify the time-course of treatment response to olcegepant (1 mg/kg i.p.) and ALD405 (10 mg/kg i.p.). Results Olcegepant and ALD405 significantly alleviated cutaneous mechanical hypersensitivity in both models compared with corresponding control treatments (saline and IgG control antibody respectively). As expected, the duration of anti-nociceptive action obtained with ALD405 was considerably longer than that associated with olcegepant. Surprisingly, in the spontaneous rat model the onset of action of ALD405 occurred within just 4 hours after administration. Discussion The current data clearly show that calcitonin gene-related peptide-mediated signaling is critically involved in the manifestation of cutaneous hypersensitivity in distinct rodent models of migraine-like pain and emphasise their translational relevance. Moreover, the unexpected rapidity of onset observed for ALD405 supports i) a probable site of action outside the blood-brain barrier, and ii) a potential clinical utility of specific monoclonal calcitonin gene-related peptide antibodies in the abortive treatment of migraine.
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Affiliation(s)
- Sarah L Christensen
- Danish Headache Center, Department of Neurology, Glostrup Research Institute, Nordstjernevej, Glostrup, Denmark
| | - Steffen Petersen
- Danish Headache Center, Department of Neurology, Glostrup Research Institute, Nordstjernevej, Glostrup, Denmark
| | - David Møbjerg Kristensen
- Danish Headache Center, Department of Neurology, Glostrup Research Institute, Nordstjernevej, Glostrup, Denmark
| | - Jes Olesen
- Danish Headache Center, Department of Neurology, Glostrup Research Institute, Nordstjernevej, Glostrup, Denmark
| | - Gordon Munro
- Danish Headache Center, Department of Neurology, Glostrup Research Institute, Nordstjernevej, Glostrup, Denmark
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Gibson LM, Nolan J, Littlejohns TJ, Mathieu E, Garratt S, Doherty N, Petersen S, Harvey NCW, Sellors J, Allen NE, Wardlaw JM, Jackson CA, Sudlow CLM. Factors associated with potentially serious incidental findings and with serious final diagnoses on multi-modal imaging in the UK Biobank Imaging Study: A prospective cohort study. PLoS One 2019; 14:e0218267. [PMID: 31206530 PMCID: PMC6576786 DOI: 10.1371/journal.pone.0218267] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/14/2019] [Accepted: 05/29/2019] [Indexed: 11/19/2022] Open
Abstract
BACKGROUND Feedback of potentially serious incidental findings (PSIFs) to imaging research participants generates clinical assessment in most cases. Understanding the factors associated with increased risks of PSIFs and of serious final diagnoses may influence individuals' decisions to participate in imaging research and will inform the design of PSIFs protocols for future research studies. We aimed to determine whether, and to what extent, socio-demographic, lifestyle, other health-related factors and PSIFs protocol are associated with detection of both a PSIF and a final diagnosis of serious disease. METHODS AND FINDINGS Our cohort consisted of all UK Biobank participants who underwent imaging up to December 2015 (n = 7334, median age 63, 51.9% women). Brain, cardiac and body magnetic resonance, and dual-energy x-ray absorptiometry images from the first 1000 participants were reviewed systematically by radiologists for PSIFs. Thereafter, radiographers flagged concerning images for radiologists' review. We classified final diagnoses as serious or not using data from participant surveys and clinical correspondence from GPs up to six months following imaging (either participant or GP correspondence, or both, were available for 93% of participants with PSIFs). We used binomial logistic regression models to investigate associations between age, sex, ethnicity, socio-economic deprivation, private healthcare use, alcohol intake, diet, physical activity, smoking, body mass index and morbidity, with both PSIFs and serious final diagnoses. Systematic radiologist review generated 13 times more PSIFs than radiographer flagging (179/1000 [17.9%] versus 104/6334 [1.6%]; age- and sex-adjusted OR 13.3 [95% confidence interval (CI) 10.3-17.1] p<0.001) and proportionally fewer serious final diagnoses (21/179 [11.7%]; 33/104 [31.7%]). Risks of both PSIFs and of serious final diagnoses increased with age (sex-adjusted ORs [95% CI] for oldest [67-79 years] versus youngest [44-58 years] participants for PSIFs and serious final diagnoses respectively: 1.59 [1.07-2.38] and 2.79 [0.86 to 9.0] for systematic radiologist review; 1.88 [1.14-3.09] and 2.99 [1.09-8.19] for radiographer flagging). No other factor was significantly associated with either PSIFs or serious final diagnoses. Our study is the largest so far to investigate the factors associated with PSIFs and serious final diagnoses, but despite this, we still may have missed some associations due to sparsity of these outcomes within our cohort and small numbers within some exposure categories. CONCLUSION Risks of PSIFs and serious final diagnosis are substantially influenced by PSIFs protocol and to a lesser extent by age. As only 1/5 PSIFs represent serious disease, evidence-based PSIFs protocols are paramount to minimise over-investigation of healthy research participants and diversion of limited health services away from patients in need.
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Affiliation(s)
- Lorna M. Gibson
- Usher Institute of Population Health Sciences and Informatics, University of Edinburgh, Edinburgh, United Kingdom
| | - John Nolan
- Usher Institute of Population Health Sciences and Informatics, University of Edinburgh, Edinburgh, United Kingdom
| | - Thomas J. Littlejohns
- Clinical Trial Service Unit and Epidemiological Studies Unit, University of Oxford, Oxford, United Kingdom
| | - Edouard Mathieu
- Nuffield Department of Primary Care Health Sciences, University of Oxford, Oxford, United Kingdom
| | - Steve Garratt
- UK Biobank Co-ordinating Centre, UK Biobank, Stockport, United Kingdom
| | - Nicola Doherty
- UK Biobank Co-ordinating Centre, UK Biobank, Stockport, United Kingdom
| | - Steffen Petersen
- William Harvey Research Institute, Queen Mary University of London, London, United Kingdom
- Barts Heart Centre, Barts Health NHS Trust, London, United Kingdom
| | - Nicholas C. W. Harvey
- MRC Lifecourse Epidemiology Unit, University of Southampton, Southampton, United Kingdom
| | - Jonathan Sellors
- Clinical Trial Service Unit and Epidemiological Studies Unit, University of Oxford, Oxford, United Kingdom
- UK Biobank Co-ordinating Centre, UK Biobank, Stockport, United Kingdom
| | - Naomi E. Allen
- Clinical Trial Service Unit and Epidemiological Studies Unit, University of Oxford, Oxford, United Kingdom
| | - Joanna M. Wardlaw
- UK Dementia Research Institute, University of Edinburgh, Edinburgh, United Kingdom
- Centre for Clinical Brain Sciences, University of Edinburgh, Edinburgh, United Kingdom
| | - Caroline A. Jackson
- Usher Institute of Population Health Sciences and Informatics, University of Edinburgh, Edinburgh, United Kingdom
| | - Cathie L. M. Sudlow
- Usher Institute of Population Health Sciences and Informatics, University of Edinburgh, Edinburgh, United Kingdom
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Fung K, Biasiolli L, Hann E, Aung N, Paiva J, Lukaschuk E, Sanghvi M, Carapella V, Rayner J, Werys K, Puchta H, Thomas K, Moon N, Khanji M, Neubauer S, Piechnik S, Munroe PB, Petersen S. 9 Effect of coffee consumption on arterial stiffness from UK biobank imaging study. Imaging 2019. [DOI: 10.1136/heartjnl-2019-bcs.9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022] Open
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20
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Schoelz JE, Adhab M, Qiu W, Petersen S, Volenberg D. First Report of Grapevine Red Blotch Virus in Hybrid Grapes in Missouri. Plant Disease 2019; 103:379-379. [DOI: 10.1094/pdis-07-18-1202-pdn] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 08/18/2023]
Affiliation(s)
- J. E. Schoelz
- Division of Plant Sciences, University of Missouri, Columbia, 65203
| | - M. Adhab
- Division of Plant Sciences, University of Missouri, Columbia, 65203
| | - W. Qiu
- Center for Grapevine Biotechnology, Missouri State University, Springfield, 65897
| | - S. Petersen
- Center for Grapevine Biotechnology, Missouri State University, Springfield, 65897
| | - D. Volenberg
- Division of Plant Sciences, University of Missouri, Columbia, 65203
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Harting R, Johnston K, Petersen S. Correlating in vitro degradation and drug release kinetics of biopolymer-based drug delivery systems. International Journal of Biobased Plastics 2019. [DOI: 10.1080/24759651.2018.1563358] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Affiliation(s)
- R. Harting
- Laboratory for Chemistry and Surface Modification, University of Applied Sciences Osnabrück, Osnabrück, Germany
| | - K. Johnston
- Department Engineering, University of Wisconsin-Madison, Madison, WI, USA
| | - S. Petersen
- Laboratory for Chemistry and Surface Modification, University of Applied Sciences Osnabrück, Osnabrück, Germany
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Zhang L, Gooya A, Pereanez M, Dong B, Piechnik S, Neubauer S, Petersen S, Frangi AF. Automatic Assessment of Full Left Ventricular Coverage in Cardiac Cine Magnetic Resonance Imaging with Fisher Discriminative 3D CNN. IEEE Trans Biomed Eng 2018; 66:1975-1986. [PMID: 30475705 DOI: 10.1109/tbme.2018.2881952] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/28/2024]
Abstract
Cardiac magnetic resonance (CMR) images play a growing role in the diagnostic imaging of cardiovascular diseases. Full coverage of the left ventricle (LV), from base to apex, is a basic criterion for CMR image quality and necessary for accurate measurement of cardiac volume and functional assessment. Incomplete coverage of the LV is identified through visual inspection, which is time-consuming and usually done retrospectively in the assessment of large imaging cohorts. This paper proposes a novel automatic method for determining LV coverage from CMR images by using Fisher-discriminative three-dimensional (FD3D) convolutional neural networks (CNNs). In contrast to our previous method employing 2D CNNs, this approach utilizes spatial contextual information in CMR volumes, extracts more representative high-level features and enhances the discriminative capacity of the baseline 2D CNN learning framework, thus achieving superior detection accuracy. A two-stage framework is proposed to identify missing basal and apical slices in measurements of CMR volume. First, the FD3D CNN extracts high-level features from the CMR stacks. These image representations are then used to detect the missing basal and apical slices. Compared to the traditional 3D CNN strategy, the proposed FD3D CNN minimizes within-class scatter and maximizes between-class scatter. We performed extensive experiments to validate the proposed method on more than 5,000 independent volumetric CMR scans from the UK Biobank study, achieving low error rates for missing basal/apical slice detection (4.9%/4.6%). The proposed method can also be adopted for assessing LV coverage for other types of CMR image data.
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Bernard O, Lalande A, Zotti C, Cervenansky F, Yang X, Heng PA, Cetin I, Lekadir K, Camara O, Gonzalez Ballester MA, Sanroma G, Napel S, Petersen S, Tziritas G, Grinias E, Khened M, Kollerathu VA, Krishnamurthi G, Rohe MM, Pennec X, Sermesant M, Isensee F, Jager P, Maier-Hein KH, Full PM, Wolf I, Engelhardt S, Baumgartner CF, Koch LM, Wolterink JM, Isgum I, Jang Y, Hong Y, Patravali J, Jain S, Humbert O, Jodoin PM. Deep Learning Techniques for Automatic MRI Cardiac Multi-Structures Segmentation and Diagnosis: Is the Problem Solved? IEEE Trans Med Imaging 2018; 37:2514-2525. [PMID: 29994302 DOI: 10.1109/tmi.2018.2837502] [Citation(s) in RCA: 468] [Impact Index Per Article: 78.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/02/2023]
Abstract
Delineation of the left ventricular cavity, myocardium, and right ventricle from cardiac magnetic resonance images (multi-slice 2-D cine MRI) is a common clinical task to establish diagnosis. The automation of the corresponding tasks has thus been the subject of intense research over the past decades. In this paper, we introduce the "Automatic Cardiac Diagnosis Challenge" dataset (ACDC), the largest publicly available and fully annotated dataset for the purpose of cardiac MRI (CMR) assessment. The dataset contains data from 150 multi-equipments CMRI recordings with reference measurements and classification from two medical experts. The overarching objective of this paper is to measure how far state-of-the-art deep learning methods can go at assessing CMRI, i.e., segmenting the myocardium and the two ventricles as well as classifying pathologies. In the wake of the 2017 MICCAI-ACDC challenge, we report results from deep learning methods provided by nine research groups for the segmentation task and four groups for the classification task. Results show that the best methods faithfully reproduce the expert analysis, leading to a mean value of 0.97 correlation score for the automatic extraction of clinical indices and an accuracy of 0.96 for automatic diagnosis. These results clearly open the door to highly accurate and fully automatic analysis of cardiac CMRI. We also identify scenarios for which deep learning methods are still failing. Both the dataset and detailed results are publicly available online, while the platform will remain open for new submissions.
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Goh V, Petersen S, Gray V, Barrack M, Wiss D, Wang L. Eating Disorder Risk Evaluation for Males in Substance Abuse Recovery. J Acad Nutr Diet 2018. [DOI: 10.1016/j.jand.2018.06.285] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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Malcolmson JW, Joshi A, Ginks M, Petersen S, Mohiddin SA, Dhinoja M. P3552Left ventricular pacing for gradient reduction and symptomatic relief in mid-cavity obstructive hypertrophic cardiomyopathy. Eur Heart J 2018. [DOI: 10.1093/eurheartj/ehy563.p3552] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Affiliation(s)
- J W Malcolmson
- Barts Health NHS Trust, Cardiology, London, United Kingdom
| | - A Joshi
- Barts Health NHS Trust, Cardiology, London, United Kingdom
| | - M Ginks
- Oxford University Hospitals NHS Trust, Cardiology, Oxford, United Kingdom
| | - S Petersen
- Barts Health NHS Trust, Cardiology, London, United Kingdom
| | - S A Mohiddin
- Barts Health NHS Trust, Cardiology, London, United Kingdom
| | - M Dhinoja
- Barts Health NHS Trust, Cardiology, London, United Kingdom
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Ramachandran R, Pedersen SH, Amrutkar DV, Petersen S, Jacobsen JM, Hay-Schmidt A, Olesen J, Jansen-Olesen I. Selective cephalic upregulation of p-ERK, CamKII and p-CREB in response to glyceryl trinitrate infusion. Cephalalgia 2018; 38:1057-1070. [PMID: 28738691 DOI: 10.1177/0333102417722511] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
Background A common characteristic of migraine-inducing substances is that they cause headache and no pain in other areas of the body. Few studies have compared pain mechanisms in the trigeminal and spinal systems and, so far, no major differences have been noted. We compared signalling molecules in the trigeminal and spinothalamic system after infusion of the migraine-provoking substance glyceryltrinitrate. Method A catheter was placed in the femoral vein of rats and one week later glyceryltrinitrate 4 µg/kg/min was infused for 20 min. Protein expression in the dura mater, trigeminal ganglion, nucleus caudalis, dorsal root ganglion and the dorsal horn of the thoracic spinal cord was analysed at different time points using western blotting and immunohistochemistry. Results Glyceryltrinitrate caused a threefold increase in expression of phosphorylated extracellular signal-regulated kinases at 30 min in the dura mater and nucleus caudalis ( P < 0.05) and at 2 h in the trigeminal ganglion with very few expressions in the dorsal root ganglion. In the nucleus caudalis, expression of phosphorylated extracellular signal-regulated kinases and Cam KII increased 2.6-fold and 3.2-fold, respectively, at 2 h after glycerytrinitrate infusion ( P < 0.01). p-CREB/ATF-1 upregulation was observed only at 30 min ( P < 0.05) in the nucleus caudalis. None of these markers showed increased expression in the regions of thoracic spinal cord dorsal horn. Conclusion The dura, trigeminal ganglion and nucleus caudalis are activated shortly after glycerytrinitrate infusion with long-lasting expression of phosphorylated extracellular signal-regulated kinases observed in the nucleus caudalis. These activations were not observed at the spinal level.
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Affiliation(s)
- Roshni Ramachandran
- 1 Danish Headache Centre, Department of Neurology, Glostrup Research Institute, Rigshospitalet, Faculty of Health and Medical Sciences, University of Copenhagen, Glostrup, Denmark
| | - Sara Hougaard Pedersen
- 1 Danish Headache Centre, Department of Neurology, Glostrup Research Institute, Rigshospitalet, Faculty of Health and Medical Sciences, University of Copenhagen, Glostrup, Denmark
| | - Dipak Vasantrao Amrutkar
- 1 Danish Headache Centre, Department of Neurology, Glostrup Research Institute, Rigshospitalet, Faculty of Health and Medical Sciences, University of Copenhagen, Glostrup, Denmark
| | - Steffen Petersen
- 1 Danish Headache Centre, Department of Neurology, Glostrup Research Institute, Rigshospitalet, Faculty of Health and Medical Sciences, University of Copenhagen, Glostrup, Denmark
| | - Julie Mie Jacobsen
- 1 Danish Headache Centre, Department of Neurology, Glostrup Research Institute, Rigshospitalet, Faculty of Health and Medical Sciences, University of Copenhagen, Glostrup, Denmark
| | - Anders Hay-Schmidt
- 2 Department of Neuroscience and Pharmacology, Faculty of Health and Medical Sciences, Panum Institute, Copenhagen, Denmark
| | - Jes Olesen
- 1 Danish Headache Centre, Department of Neurology, Glostrup Research Institute, Rigshospitalet, Faculty of Health and Medical Sciences, University of Copenhagen, Glostrup, Denmark
| | - Inger Jansen-Olesen
- 1 Danish Headache Centre, Department of Neurology, Glostrup Research Institute, Rigshospitalet, Faculty of Health and Medical Sciences, University of Copenhagen, Glostrup, Denmark
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Munro G, Petersen S, Jansen-Olesen I, Olesen J. A unique inbred rat strain with sustained cephalic hypersensitivity as a model of chronic migraine-like pain. Sci Rep 2018; 8:1836. [PMID: 29382888 PMCID: PMC5789845 DOI: 10.1038/s41598-018-19901-1] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/26/2017] [Accepted: 01/04/2018] [Indexed: 02/07/2023] Open
Abstract
Animal models of migraine-like pain enabling ongoing study of behaviour typically involve the systemic administration of chemical vasodilators or dural administration of inflammatory algogens. However, neither method mediates prolonged effects on behavior indicative of enduring pathophysiological changes occurring within dural or trigeminal pain circuits. We generated successive generations of a unique inbred rat strain, spontaneous trigeminal allodynia (STA) rats, previously reported to exhibit an episodic migraine-like behavioural phenotype. We show that both male and female STA rats display robust and sustained reductions in periorbital thresholds to cutaneous mechanical stimulation. Otherwise, the general behavior (e.g. locomotor, grooming) of these rats appeared normal. In female STA rats, the mechanical hypersensitivity was confined to the cephalic region, manifested after puberty through adolescence, and was sustained into adulthood recapitulating the clinical manifestation of migraine. We exploited this hitherto unidentified chronic phenotype to show that the migraine-specific drugs sumatriptan (5-HT1B/1D receptor agonist) and olcegepant (CGRP receptor antagonist) could completely reverse cephalic hypersensitivity using a within subject cross-over paradigm. Our findings indicate that STA rats actually possess a phenotype indicative of migraine chronicity which is exquisitely sensitive to migraine therapeutics. This unique strain could prove to be an invaluable resource in preclinical migraine drug discovery.
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Affiliation(s)
- Gordon Munro
- Danish Headache Center, Department of Neurology, Glostrup Research Institute, Nordre Ringvej 69, 2600, Glostrup, Denmark.
| | - Steffen Petersen
- Danish Headache Center, Department of Neurology, Glostrup Research Institute, Nordre Ringvej 69, 2600, Glostrup, Denmark
| | - Inger Jansen-Olesen
- Danish Headache Center, Department of Neurology, Glostrup Research Institute, Nordre Ringvej 69, 2600, Glostrup, Denmark
| | - Jes Olesen
- Danish Headache Center, Department of Neurology, Glostrup Research Institute, Nordre Ringvej 69, 2600, Glostrup, Denmark
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Petersen S, Romqvist A, Wiklander L, Corell M, Bremberg S, Månsdotter A, Löfstedt P. School may be a key player in child mental health. Preliminary findings from a systematic review. Eur J Public Health 2017. [DOI: 10.1093/eurpub/ckx189.183] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Affiliation(s)
- S Petersen
- Public Health Agency of Sweden, Stockholm, Sweden
| | - A Romqvist
- Public Health Agency of Sweden, Östersund, Sweden
| | - L Wiklander
- Public Health Agency of Sweden, Östersund, Sweden
| | - M Corell
- Public Health Agency of Sweden, Östersund, Sweden
| | - S Bremberg
- Public Health Agency of Sweden, Stockholm, Sweden
| | - A Månsdotter
- Public Health Agency of Sweden, Stockholm, Sweden
| | - P Löfstedt
- Public Health Agency of Sweden, Stockholm, Sweden
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Löfstedt P, Wiklander L, Bremberg S, Corell M, Månsdotter A, Trygg N, Romquist A, Petersen S. Why are psychosomatic symptoms in young people increasing in Sweden? Eur J Public Health 2017. [DOI: 10.1093/eurpub/ckx189.194] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
Affiliation(s)
- P Löfstedt
- Public Health Agency of Sweden, Stockholm, Sweden
| | - L Wiklander
- Public Health Agency of Sweden, Östersund, Sweden
| | - S Bremberg
- Public Health Agency of Sweden, Stockholm, Sweden
| | - M Corell
- Public Health Agency of Sweden, Östersund, Sweden
| | - A Månsdotter
- Public Health Agency of Sweden, Stockholm, Sweden
| | - N Trygg
- Public Health Agency of Sweden, Stockholm, Sweden
| | - A Romquist
- Public Health Agency of Sweden, Östersund, Sweden
| | - S Petersen
- Public Health Agency of Sweden, Stockholm, Sweden
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Westra J, Winther S, Tu S, Nissen L, Gormsen L, Petersen S, Ejlersen J, Isaksen C, Bottcher M, Christiansen E, Holm N. TCT-69 Comparison of Quantitative Flow Ratio and Fractional Flow Reserve to Identify Myocardial Ischemia: Validation With Myocardial Perfusion Scintigraphy and Cardiovascular Magnetic Resonance. J Am Coll Cardiol 2017. [DOI: 10.1016/j.jacc.2017.09.120] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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31
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van der Meulen M, Anton F, Petersen S. Painful decisions: How classifying sensations can change the experience of pain. Eur J Pain 2017; 21:1602-1610. [DOI: 10.1002/ejp.1061] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 04/23/2017] [Indexed: 11/11/2022]
Affiliation(s)
| | - F. Anton
- Institute for Health and Behaviour; University of Luxembourg; Luxembourg
| | - S. Petersen
- Institute for Health and Behaviour; University of Luxembourg; Luxembourg
- Research Group Health Psychology; KU Leuven; Belgium
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Damkjaer S, Thomsen J, Petersen S, Bangsgaard J, Aznar M, Vogelius I, Petersen P. EP-1693: Functional MRI to individualize PTV margins to seminal vesicles with suspected cancer involvement. Radiother Oncol 2017. [DOI: 10.1016/s0167-8140(17)32225-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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Leupoldt A, Reijnders T, Petersen S, Stenzel N, Schuler M, Wittmann M, Jelusic D, Schultz K. Disease-specific fears impact outcomes of pulmonary rehabilitation in patients with COPD. Pneumologie 2017. [DOI: 10.1055/s-0037-1598582] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
Affiliation(s)
| | | | - S Petersen
- Research Unit Inside, University of Luxembourg
| | - N Stenzel
- Clinical Psychology and Psychotherapy, Berlin Psychological University
| | - M Schuler
- Abteilung für Medizinische Psychologie und Psychotherapie, Medizinische Soziologie und Rehabilitationswissenschaften, Universität Würzburg
| | - M Wittmann
- Klinik Bad Reichenhall der Drv Bayern Süd
| | - D Jelusic
- Klinik Bad Reichenhall der Drv Bayern Süd
| | - K Schultz
- Klinik Bad Reichenhall der Drv Bayern Süd
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Christensen SL, Petersen S, Sørensen DB, Olesen J, Jansen-Olesen I. Cilostazol induces C-fos expression in the trigeminal nucleus caudalis and behavioural changes suggestive of headache with the migraine-like feature photophobia in female rats. Cephalalgia 2017; 38:452-465. [DOI: 10.1177/0333102417693833] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
Abstract
Introduction Research in development of new migraine therapeutics is hindered by the lack of suitable, predictive animal models. Cilostazol provokes headache in healthy humans and migraineurs by increasing intracellular cAMP levels. We aimed to investigate whether cilostazol could provoke headache-like behaviours and c-fos expression in rats. In order to evaluate the predictive validity of the model, we examined the response to the migraine specific drug sumatriptan. Methods The effect of cilostazol (125 mg/kg p.o.) in female Sprague Dawley rats was evaluated on a range of spontaneous behavioural parameters, light sensitivity and mechanical sensitivity thresholds. We also measured c-fos expression in the trigeminal nucleus caudalis. Results Cilostazol increased light sensitivity and grooming behaviour. These manifestations were not inhibited by sumatriptan. Cilostazol also induced c-fos expression in the trigeminal nucleus caudalis. Furthermore, trigeminal – but not hind paw hyperalgesia was observed. Conclusion The altered behaviours are suggestive of cilostazol induced headache with migraine-like features, but not specific. The presence of head specific hyperalgesia and the c-fos response in the trigeminal nucleus caudalis imply that the model involves trigeminal nociception. The model will be useful for studying mechanisms related to the cAMP pathway in headache, but its predictive properties appear to be more limited due to the lack of response to sumatriptan.
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Affiliation(s)
- SL Christensen
- Danish Headache Center, Department of Neurology, Rigshospitalet, Glostrup, Denmark
- Glostrup Research Institute, Rigshospitalet, Glostrup, Denmark
| | - Steffen Petersen
- Danish Headache Center, Department of Neurology, Rigshospitalet, Glostrup, Denmark
- Glostrup Research Institute, Rigshospitalet, Glostrup, Denmark
| | - Dorte B Sørensen
- Experimental Animal Models, University of Copenhagen, Copenhagen, Denmark
| | - Jes Olesen
- Danish Headache Center, Department of Neurology, Rigshospitalet, Glostrup, Denmark
| | - Inger Jansen-Olesen
- Danish Headache Center, Department of Neurology, Rigshospitalet, Glostrup, Denmark
- Glostrup Research Institute, Rigshospitalet, Glostrup, Denmark
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Petersen S, Rubinfeld I, Buekers T, Sangha R. Analysis of Risk Factors for Urologic Injuries After Minimally Invasive vs Abdominal Hysterectomy. J Minim Invasive Gynecol 2016. [DOI: 10.1016/j.jmig.2016.08.079] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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Petersen S, Scheller B, Wutzler S, Zacharowski K, Wicker S. [Aggression and subjective risk in emergency medicine : A survey]. Anaesthesist 2016; 65:580-4. [PMID: 27392440 DOI: 10.1007/s00101-016-0202-3] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/16/2016] [Revised: 06/07/2016] [Accepted: 06/07/2016] [Indexed: 11/26/2022]
Abstract
BACKGROUND Healthcare personnel may be faced with different degrees of violence and aggression, particularly concerning preclinical care. However, systematic data with respect to the frequency and type of violence in emergency medicine in Germany has not been researched. METHODS AND OBJECTIVES At an anesthesiology congress, an anonymous survey was distributed about the different kinds and extent of violent acts that the participants had experienced during their work in emergency medicine. Moreover, the participants' subjective feelings toward professional and personal safety when handling emergency cases were explored. RESULTS Every fourth participant in the survey (25.2 %) had experienced occupational physical violence within the last 12 months. Verbal harassment or insults within the last twelve months were reported by 58.2 % of the participants. While 80 % of the participants feel "entirely" or "mostly" safe with regard to the professional aspect of their occupation, personal safety was considered "entirely" in only 9.3 % and "mostly" in 46.4 % of the cases. Nearly every third participant (31.8 %) feels only "partially" safe and every eighth participant feels "rather not" or "not at all" safe during emergency medicine missions. Men appreciate their expertise as well as their personal safety more so than women (p < 0.001). CONCLUSION Aggression and violence towards healthcare personnel in emergency medicine occur on a regular basis in the German healthcare system. Little research has been conducted in this area, so the issue has not yet been perceived as a relevant problem. Appropriate training for healthcare personnel in emergency medicine should be targeted at developing the skills needed when encountered with aggression and occupational violence.
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Affiliation(s)
- S Petersen
- Klinik für Anästhesiologie, Intensivmedizin und Schmerztherapie, Universitätsklinikum Frankfurt, Frankfurt am Main, Deutschland
| | - B Scheller
- Klinik für Anästhesiologie, Intensivmedizin und Schmerztherapie, Universitätsklinikum Frankfurt, Frankfurt am Main, Deutschland
| | - S Wutzler
- Klinik für Unfall-, Hand- und Wiederherstellungschirurgie, Universitätsklinikum Frankfurt, Frankfurt am Main, Deutschland
| | - K Zacharowski
- Klinik für Anästhesiologie, Intensivmedizin und Schmerztherapie, Universitätsklinikum Frankfurt, Frankfurt am Main, Deutschland
| | - S Wicker
- Betriebsärztlicher Dienst, Universitätsklinikum Frankfurt, Theodor-Stern-Kai 7, 60590, Frankfurt am Main, Deutschland.
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Christensen SL, Petersen S, Sørensen DB, Olesen J, Jansen-Olesen I. Infusion of low dose glyceryl trinitrate has no consistent effect on burrowing behavior, running wheel activity and light sensitivity in female rats. J Pharmacol Toxicol Methods 2016; 80:43-50. [DOI: 10.1016/j.vascn.2016.04.004] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/29/2015] [Revised: 01/14/2016] [Accepted: 04/04/2016] [Indexed: 10/22/2022]
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Iesalnieks I, Ommer A, Petersen S, Doll D, Herold A. German national guideline on the management of pilonidal disease. Langenbecks Arch Surg 2016; 401:599-609. [DOI: 10.1007/s00423-016-1463-7] [Citation(s) in RCA: 28] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/16/2016] [Accepted: 06/08/2016] [Indexed: 01/30/2023]
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Petersen S, Jensen KL, Pedersen ALS, Rasmussen HS. The effect of increased classroom ventilation rate indicated by reduced CO2 concentration on the performance of schoolwork by children. Indoor Air 2016; 26:366-79. [PMID: 25866236 DOI: 10.1111/ina.12210] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/26/2014] [Accepted: 04/07/2015] [Indexed: 05/16/2023]
Abstract
The article reports on an experiment which investigated the effect of increased classroom ventilation rate on the performance of children aged 10-12 years. The experiment was executed at two different schools (two classrooms at each school) as a double-blind 2 × 2 crossover intervention where four different performance tests were used as surrogates for short-term concentration and logical thinking. Only complete pairs of test responses were included in the within-subject comparisons of performance, and data were not corrected for learning and fatigue effects. Analysis of the total sample suggested the number of correct answers was improved significantly in four of four performance test, addition (6.3%), number comparison (4.8%), grammatical reasoning (3.2%), and reading and comprehension (7.4%), when the outdoor air supply rate was increased from an average of 1.7 (1.4-2.0) to 6.6 l/s per person. The increased outdoor air supply rate did not have any significant effect on the number of errors in any of the performance tests. Results from questionnaires regarding pupil perception of the indoor environment, reported Sick Building Syndrome symptoms, and motivation suggested that the study classroom air was perceived more still and pupil were experiencing less pain in the eyes in the recirculation condition compared to the fresh air condition.
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Affiliation(s)
- S Petersen
- Department of Engineering, Aarhus University, Aarhus N, Denmark
| | - K L Jensen
- Danish Technological Institute, Aarhus C, Denmark
| | - A L S Pedersen
- Department of Engineering, Aarhus University, Aarhus N, Denmark
| | - H S Rasmussen
- Department of Engineering, Aarhus University, Aarhus N, Denmark
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Khanji M, Balawon A, Boubertakh R, Petersen S. 84 Cardiovascular Risk Reduction Using Contemporary Guideline Recommendations: Outcomes of the Heart Attack Prevention Programme for You (Happy) London Study: Abstract 84 Table 1. Heart 2016. [DOI: 10.1136/heartjnl-2016-309890.84] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
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Engels AC, Van Calsteren B, Petersen S, Lewi L, Deprest J. Clusteranalyse in Fällen von iatrogenem Blasensprung vor 26+0 SSW nach fetoskopischen Lasereingriffen bei TTTS. Geburtshilfe Frauenheilkd 2016. [DOI: 10.1055/s-0036-1583817] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022] Open
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Reijnders T, Schuler M, Wittmann M, Jelusic D, Schultz K, Petersen S, Leupoldt AV. Ist Einsamkeit ein Prädiktor für den Gesundheitsstatus und den Reha-Erfolg bei COPD-Patienten? Pneumologie 2016. [DOI: 10.1055/s-0036-1572037] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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Leupoldt AV, Reijnders T, Schuler M, Wittmann M, Jelusic D, Petersen S, Schultz K. Validity of a self-administered questionnaire version of the Transition Dyspnea Index in patients with COPD. Pneumologie 2016. [DOI: 10.1055/s-0036-1572038] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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Kvist TM, Syberg S, Petersen S, Ding M, Jørgensen NR, Schwarz P. The role of the P2X7 receptor on bone loss in a mouse model of inflammation-mediated osteoporosis. Bone Rep 2015; 7:145-151. [PMID: 29276731 PMCID: PMC5736855 DOI: 10.1016/j.bonr.2015.09.003] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/13/2015] [Revised: 09/14/2015] [Accepted: 09/20/2015] [Indexed: 12/17/2022] Open
Abstract
In inflammatory autoimmune diseases, bone loss is frequent. In most cases, secondary osteoporosis is caused by treatment with systemic glucocorticoid. However, the pathogenesis behind the bone loss is presumed multifactorial. We aimed to elucidate the role of the P2X7 receptor on bone mineral density (BMD), microarchitecture, and bone strength in a standardized mouse model of inflammation-mediated osteoporosis (IMO). In total 146 mice completed our protocol, 70 wild type (WT) mice and 76 P2X7 -/- (knockout, KO). BMD at the femur and spine decreased significantly from baseline to day 20 in the WT IMO mice (p < 0.01). In the WT vehicle, KO vehicle and KO IMO, no significant BMD changes were found. Bone strength showed a lower mid-shaft max strength (p = 0.038) and also a non-significant trend towards lower strength at the femoral neck of the WT IMO group. Trabecular bone volume fraction (BV/TV) and connectivity density (CD) after 20 days were significantly decreased in the WT IMO group (p = 0.001). In contrast, the WT vehicle and KO vehicle, BV/TV and CD did no change at 20 days. Cortical bone revealed no significant microarchitectural changes after 20 days in the WT IMO group, whereas the total cortical area increased significantly in WT vehicle and KO IMO after 20 days (5.2% and 8.8%, respectively). In conclusion, the P2X7 receptor KO mice did not respond to inflammation with loss of BMD whereas the WT mice had a significant loss of BMD, bone strength and trabecular microarchitecture, demonstrating a role for the P2X7 receptor in inflammatory bone loss.
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Affiliation(s)
- T M Kvist
- Research Centre for Ageing and Osteoporosis, Dep. of Endocrinology PE, Copenhagen University Hospital, Rigshospitalet, Denmark
| | - S Syberg
- Research Centre for Ageing and Osteoporosis, Dep. of Clinical Biochemistry, Copenhagen University Hospital, Rigshospitalet, Denmark
| | - S Petersen
- Research Centre for Ageing and Osteoporosis, Dep. of Clinical Biochemistry, Copenhagen University Hospital, Rigshospitalet, Denmark
| | - M Ding
- Research Centre for Ageing and Osteoporosis, Dep. of Ortopedics & Traumatology, Odense University Hospital, University of Southern Denmark, Denmark
| | - N R Jørgensen
- Research Centre for Ageing and Osteoporosis, Dep. of Clinical Biochemistry, Copenhagen University Hospital, Rigshospitalet, Denmark.,Research Centre for Ageing and Osteoporosis, Institute of Clinical Research, University of Southern Denmark, Denmark
| | - P Schwarz
- Research Centre for Ageing and Osteoporosis, Dep. of Endocrinology PE, Copenhagen University Hospital, Rigshospitalet, Denmark.,Research Centre for Ageing and Osteoporosis, Faculty of Health Sciences, University of Copenhagen, Denmark
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Petersen S, Rabenau HF, Mankertz A, Matysiak-Klose D, Friedrichs I, Wicker S. [Immunity against measles among healthcare personnel at the University Hospital Frankfurt, 2003-2013]. Bundesgesundheitsblatt Gesundheitsforschung Gesundheitsschutz 2015; 58:182-9. [PMID: 25475526 DOI: 10.1007/s00103-014-2098-x] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
BACKGROUND Despite aiming for the elimination of measles by 2015, the current epidemiological situation in Germany shows that there is still insufficient vaccination coverage among the population. During the present pre-elimination period, nosocomial measles are gaining in importance. AIM The purpose of our study was to determine the immune status of measles among healthcare personnel and medical students at the University Hospital Frankfurt. Moreover, the knowledge of study participants regarding the WHO's goal of the elimination of measles and the general attitude towards vaccination recommendations were investigated. METHODS A retrospective study of measles seroprevalence was conducted among healthcare personnel and students at the University Hospital Frankfurt with an observation period of 11 years. In spring 2014, medical students were asked to complete an anonymous questionnaire regarding vaccination status, knowledge of measles and acceptance of measles vaccination recommendations. RESULTS In total, 9,933 serologies were evaluated and 85.7% of the participants had sufficient immunity against measles. Significant changes in immunity to measles over time were not observed. However, a significant difference in the immunity rate of participants born before 1970 and those born after1970 was found. Participants born before 1970 significantly more often showed sufficient immunity against measles compared to those born later (96.4 vs. 83.3 %, p < 0.0001). Almost 20 % of the medical students were not aware of their measles vaccination status and merely 70.7 % indicated that they had received two measles vaccinations. Furthermore, only 45.4 % of the medical students were familiar with the WHO's goal of eliminating measles by 2015; however 95 % could be classified as vaccination-supporters on the basis of the questionnaire. CONCLUSIONS Overall, the immunity rate of measles determined by serology within the study population did not reach the WHO goal of ≥ 95 %, and this gap was even greater in group of medical students. Despite the medical students' positive attitude towards vaccination guidelines, the awareness in this field awaits improvement.
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Affiliation(s)
- S Petersen
- Betriebsärztlicher Dienst, Universitätsklinikum Frankfurt, Theodor-Stern-Kai 7, 60590, Frankfurt am Main, Deutschland
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Bruder O, Schneider S, Pilz G, van Rossum AC, Schwitter J, Nothnagel D, Lombardi M, Buss S, Wagner A, Petersen S, Greulich S, Jensen C, Nagel E, Sechtem U, Mahrholdt H. 2015 Update on Acute Adverse Reactions to Gadolinium based Contrast Agents in Cardiovascular MR. Large Multi-National and Multi-Ethnical Population Experience With 37788 Patients From the EuroCMR Registry. J Cardiovasc Magn Reson 2015; 17:58. [PMID: 26170152 PMCID: PMC4501068 DOI: 10.1186/s12968-015-0168-3] [Citation(s) in RCA: 54] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/24/2015] [Accepted: 06/24/2015] [Indexed: 12/20/2022] Open
Abstract
OBJECTIVES Specifically we aim to demonstrate that the results of our earlier safety data hold true in this much larger multi-national and multi-ethnical population. BACKGROUND We sought to re-evaluate the frequency, manifestations, and severity of acute adverse reactions associated with administration of several gadolinium- based contrast agents during routine CMR on a European level. METHODS Multi-centre, multi-national, and multi-ethnical registry with consecutive enrolment of patients in 57 European centres. RESULTS During the current observation 37,788 doses of Gadolinium based contrast agent were administered to 37,788 patients. The mean dose was 24.7 ml (range 5-80 ml), which is equivalent to 0.123 mmol/kg (range 0.01 - 0.3 mmol/kg). Forty-five acute adverse reactions due to contrast administration occurred (0.12%). Most reactions were classified as mild (43 of 45) according to the American College of Radiology definition. The most frequent complaints following contrast administration were rashes and hives (15 of 45), followed by nausea (10 of 45) and flushes (10 of 45). The event rate ranged from 0.05% (linear non-ionic agent gadodiamide) to 0.42% (linear ionic agent gadobenate dimeglumine). Interestingly, we also found different event rates between the three main indications for CMR ranging from 0.05% (risk stratification in suspected CAD) to 0.22% (viability in known CAD). CONCLUSIONS The current data indicate that the results of the earlier safety data hold true in this much larger multi-national and multi-ethnical population. Thus, the "off-label" use of Gadolinium based contrast in cardiovascular MR should be regarded as safe concerning the frequency, manifestation and severity of acute events.
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Affiliation(s)
- O Bruder
- Department of Cardiology and Angiology, Elisabeth Hospital, Essen, Germany.
| | - S Schneider
- Institut für Herzinfarktforschung, Department of Biometrics, Ludwigshafen, Germany.
| | - G Pilz
- Department of Cardiology, Hospital Agatharied, Hausham, Germany.
| | - A C van Rossum
- Department of Cardiology, VU University Medical Centre, Amsterdam, The Netherlands.
| | - J Schwitter
- Centre Hospitalier Universitaire Vaudois - CHUV University of Lausanne, Lausanne, Switzerland.
| | - D Nothnagel
- Department of Cardiology, Klinikum Ludwigsburg, Ludwigsburg, Germany.
| | - M Lombardi
- Fondazione C.N.R./Regione Toscana "G. Monasterio", Pisa, Italy.
| | - S Buss
- Department of Cardiology, University of Heidelberg, Heidelberg, Germany.
| | - A Wagner
- Cardiology Associates of Fairfield, Stamford, CT, USA.
| | - S Petersen
- Barts and The London NIHR Biomedical Research Unit, London Chest Hospital, London, United Kingdom.
| | - S Greulich
- Department of Cardiology, Robert Bosch Medical Centre, Stuttgart, 70376, Germany.
| | - C Jensen
- Department of Cardiology and Angiology, Elisabeth Hospital, Essen, Germany.
| | - E Nagel
- Division of Cardiovascular Imaging, J.W. Goethe University Frankfurt, Frankfurt am Main, Germany; German Center of Cardiovascular Research, Frankfurt, Germany.
| | - U Sechtem
- Department of Cardiology, Robert Bosch Medical Centre, Stuttgart, 70376, Germany.
| | - H Mahrholdt
- Department of Cardiology, Robert Bosch Medical Centre, Stuttgart, 70376, Germany.
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Thor M, Jackson A, Steineck G, Zelefsky M, Karlsdottir A, Hoyer M, Liu M, Nasser N, Petersen S, Moiseenko V, Deasy J. TH-AB-304-01: Dose-Volume Relations for Late Rectal Bleeding in 1001 Patients From Five Prostate Cancer Cohorts. Med Phys 2015. [DOI: 10.1118/1.4926116] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022] Open
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Petersen S, Roggendorf H, Wicker S. [Vaccine Preventable Diseases: Knowledge, Attitudes and Vaccination Status of Medical Students]. Gesundheitswesen 2015; 79:394-398. [PMID: 25806504 DOI: 10.1055/s-0035-1547274] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
Abstract
Study Objective: Health-care workers (HCW) have an increased risk of acquiring infectious diseases and constitute a risk of transmission to their patients. Medical students working as HCW should therefore have the same immunity against vaccine preventable diseases as HCW. The aim of the study was to assess medical students' knowledge and attitudes towards occupationally indicated vaccinations as well as their vaccination status. Methods: Questionnaires were anonymously answered by medical students of the fourth preclinical semester at the Goethe-University Frankfurt. Results and Conclusion: Despite a high acceptance among medical students concerning vaccinations in general, the knowledge and vaccination status of the students should be improved. For instance, only 46.4% of the medical students knew that there is a general recommendation for HCW to receive the influenza vaccination and only 76.8% of the students stated to have received 2 measles vaccinations. Overall, 2/3 of the students were "very much in favour of vaccinations" or "completely in favour of vaccinations" and estimated the probability for unvaccinated HCW to acquire an occupationally associated infectious disease to be "quite high" or "very high". Having observed a positive attitude among medical students towards vaccinations, it should be possible to reach high vaccination coverage amongst students by offering them occupationally indicated vaccinations. Further knowledge concerning vaccine preventable diseases and the occupation-related increased risk for infectious diseases should be offered, as well.
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Affiliation(s)
- S Petersen
- Betriebsärztlicher Dienst, Universitätsklinikum Frankfurt, Frankfurt
| | - H Roggendorf
- Reise-Impfsprechstunde/Gelbfieberimpfstelle, Zentrum für Prävention, Ernährung und Sportmedizin, Klinikum rechts der Isar, München
| | - S Wicker
- Betriebsärztlicher Dienst, Universitätsklinikum Frankfurt, Frankfurt
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Pedersen SH, Ramachandran R, Amrutkar DV, Petersen S, Olesen J, Jansen-Olesen I. Mechanisms of glyceryl trinitrate provoked mast cell degranulation. Cephalalgia 2015; 35:1287-97. [PMID: 25724914 DOI: 10.1177/0333102415574846] [Citation(s) in RCA: 31] [Impact Index Per Article: 3.4] [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: 11/25/2014] [Accepted: 02/02/2015] [Indexed: 11/16/2022]
Abstract
BACKGROUND Migraine patients develop attacks several hours after intravenous infusion of glyceryl trinitrate. Due to the short half-life of nitric oxide, this delayed migraine cannot be caused by a direct action of nitric oxide derived from glyceryl trinitrate. The involvement of meningeal inflammation and dural mast cell degranulation is supported by the effectiveness of prednisolone on glyceryl trinitrate-induced delayed headache. METHODS Using a newly developed rat model mimicking the human glyceryl trinitrate headache model, we have investigated the occurrence of dural mast cell degranulation after a clinically relevant dose of glyceryl trinitrate. RESULTS A 6-fold increase in degranulation was observed starting at 2 hours after glyceryl trinitrate infusion. Interestingly, pre-treatment with the effective anti-migraine substances L-nitro-arginine methyl ester and sumatriptan prevented glyceryl trinitrate-induced mast cell degranulation whereas the calcitonin gene-related peptide-receptor antagonist olcegepant and the substance P receptor antagonist L-733,060 did not affect mast cell degranulation. However, topical application of two different nitric oxide donors did not cause mast cell degranulation ex vivo. CONCLUSIONS Direct application of an exogenous nitric oxide donor on dural mast cells does not cause mast cell degranulation ex vivo. In vivo application of the nitric oxide donor glyceryl trinitrate leads to a prominent level of degranulation via a yet unknown mechanism. This effect can be completely blocked by inhibition of the endogenous nitric oxide production and by 5-HT1B/1D receptor agonists but is unaffected by calcitonin gene-related peptide and substance P receptor antagonists.
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Affiliation(s)
- Sara Hougaard Pedersen
- Danish Headache Center, Department of Neurology, Glostrup Research Institute, Glostrup Hospital and Faculty of Health and Medical Sciences, University of Copenhagen, Denmark
| | - Roshni Ramachandran
- Danish Headache Center, Department of Neurology, Glostrup Research Institute, Glostrup Hospital and Faculty of Health and Medical Sciences, University of Copenhagen, Denmark
| | - Dipak Vasantrao Amrutkar
- Danish Headache Center, Department of Neurology, Glostrup Research Institute, Glostrup Hospital and Faculty of Health and Medical Sciences, University of Copenhagen, Denmark
| | - Steffen Petersen
- Danish Headache Center, Department of Neurology, Glostrup Research Institute, Glostrup Hospital and Faculty of Health and Medical Sciences, University of Copenhagen, Denmark
| | - Jes Olesen
- Danish Headache Center, Department of Neurology, Glostrup Research Institute, Glostrup Hospital and Faculty of Health and Medical Sciences, University of Copenhagen, Denmark
| | - Inger Jansen-Olesen
- Danish Headache Center, Department of Neurology, Glostrup Research Institute, Glostrup Hospital and Faculty of Health and Medical Sciences, University of Copenhagen, Denmark
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