1
|
Zimmerman C, Hargreaves S, Lau K, Kiss L, Lin RCY, Pocock N. Addressing labour exploitation in the global workforce. Lancet 2024; 403:1748. [PMID: 38704165 DOI: 10.1016/s0140-6736(24)00459-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/26/2023] [Accepted: 03/01/2024] [Indexed: 05/06/2024]
Affiliation(s)
- C Zimmerman
- London School of Hygiene and Tropical Medicine, London, UK
| | - S Hargreaves
- The Migrant Health Research Group, St George's University of London, London SW17 0RE, UK.
| | - K Lau
- The Migrant Health Research Group, St George's University of London, London SW17 0RE, UK
| | - L Kiss
- London School of Hygiene and Tropical Medicine, London, UK
| | - R Chia-Yin Lin
- The Migrant Health Research Group, St George's University of London, London SW17 0RE, UK
| | - N Pocock
- London School of Hygiene and Tropical Medicine, London, UK
| |
Collapse
|
2
|
Crawshaw AF, Goldsmith LP, Deal A, Carter J, Knights F, Seedat F, Lau K, Hayward SE, Yong J, Fyle D, Aspray N, Iwami M, Ciftci Y, Wurie F, Majeed A, Forster AS, Hargreaves S. Driving delivery and uptake of catch-up vaccination among adolescent and adult migrants in UK general practice: a mixed methods pilot study. BMC Med 2024; 22:186. [PMID: 38702767 PMCID: PMC11068568 DOI: 10.1186/s12916-024-03378-z] [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] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/14/2023] [Accepted: 04/02/2024] [Indexed: 05/06/2024] Open
Abstract
BACKGROUND Migrants in the UK and Europe face vulnerability to vaccine-preventable diseases (VPDs) due to missed childhood vaccines and doses and marginalisation from health systems. Ensuring migrants receive catch-up vaccinations, including MMR, Td/IPV, MenACWY, and HPV, is essential to align them with UK and European vaccination schedules and ultimately reduce morbidity and mortality. However, recent evidence highlights poor awareness and implementation of catch-up vaccination guidelines by UK primary care staff, requiring novel approaches to strengthen the primary care pathway. METHODS The 'Vacc on Track' study (May 2021-September 2022) aimed to measure under-vaccination rates among migrants in UK primary care and establish new referral pathways for catch-up vaccination. Participants included migrants aged 16 or older, born outside of Western Europe, North America, Australia, or New Zealand, in two London boroughs. Quantitative data on vaccination history, referral, uptake, and sociodemographic factors were collected, with practice nurses prompted to deliver catch-up vaccinations following UK guidelines. Focus group discussions and in-depth interviews with staff and migrants explored views on delivering catch-up vaccination, including barriers, facilitators, and opportunities. Data were analysed using STATA12 and NVivo 12. RESULTS Results from 57 migrants presenting to study sites from 18 countries (mean age 41 [SD 7.2] years; 62% female; mean 11.3 [SD 9.1] years in UK) over a minimum of 6 months of follow-up revealed significant catch-up vaccination needs, particularly for MMR (49 [86%] required catch-up vaccination) and Td/IPV (50 [88%]). Fifty-three (93%) participants were referred for any catch-up vaccination, but completion of courses was low (6 [12%] for Td/IPV and 33 [64%] for MMR), suggesting individual and systemic barriers. Qualitative in-depth interviews (n = 39) with adult migrants highlighted the lack of systems currently in place in the UK to offer catch-up vaccination to migrants on arrival and the need for health-care provider skills and knowledge of catch-up vaccination to be improved. Focus group discussions and interviews with practice staff (n = 32) identified limited appointment/follow-up time, staff knowledge gaps, inadequate engagement routes, and low incentivisation as challenges that will need to be addressed. However, they underscored the potential of staff champions, trust-building mechanisms, and community-based approaches to strengthen catch-up vaccination uptake among migrants. CONCLUSIONS Given the significant catch-up vaccination needs of migrants in our sample, and the current barriers to driving uptake identified, our findings suggest it will be important to explore this public health issue further, potentially through a larger study or trial. Strengthening existing pathways, staff capacity and knowledge in primary care, alongside implementing new strategies centred on cultural competence and building trust with migrant communities will be important focus areas.
Collapse
Affiliation(s)
- Alison F Crawshaw
- Migrant Health Research Group, Institute for Infection and Immunity, St George's, University of London, London, UK
| | - Lucy P Goldsmith
- Population Health Research Institute, St George's, University of London, London, UK
| | - Anna Deal
- Migrant Health Research Group, Institute for Infection and Immunity, St George's, University of London, London, UK
- Faculty of Public Health and Policy, London School of Hygiene and Tropical Medicine, London, UK
| | - Jessica Carter
- Migrant Health Research Group, Institute for Infection and Immunity, St George's, University of London, London, UK
| | - Felicity Knights
- Migrant Health Research Group, Institute for Infection and Immunity, St George's, University of London, London, UK
| | - Farah Seedat
- Migrant Health Research Group, Institute for Infection and Immunity, St George's, University of London, London, UK
| | - Karen Lau
- Migrant Health Research Group, Institute for Infection and Immunity, St George's, University of London, London, UK
- Faculty of Public Health and Policy, London School of Hygiene and Tropical Medicine, London, UK
| | - Sally E Hayward
- Migrant Health Research Group, Institute for Infection and Immunity, St George's, University of London, London, UK
| | - Joanna Yong
- NHS North Central London Research Network (NoCLoR) and Clinical Research Network (CRN) North Thames, London, UK
| | - Desiree Fyle
- NHS North Central London Research Network (NoCLoR) and Clinical Research Network (CRN) North Thames, London, UK
| | - Nathaniel Aspray
- Migrant Health Research Group, Institute for Infection and Immunity, St George's, University of London, London, UK
| | - Michiyo Iwami
- Migrant Health Research Group, Institute for Infection and Immunity, St George's, University of London, London, UK
| | - Yusuf Ciftci
- Migrant Health Research Group, Institute for Infection and Immunity, St George's, University of London, London, UK
| | - Fatima Wurie
- Addiction and Inclusion Directorate, Office for Health Improvement and Disparities, Department of Health and Social Care, 39 Victoria Street, London, SW1H 0EU, UK
| | - Azeem Majeed
- Department of Primary Care and Public Health, Imperial College London, London, UK
| | | | - Sally Hargreaves
- Migrant Health Research Group, Institute for Infection and Immunity, St George's, University of London, London, UK.
| |
Collapse
|
3
|
Fernández-García S, Del Campo-Albendea L, Sambamoorthi D, Sheikh J, Lau K, Osei-Lah N, Ramkumar A, Naidu H, Stoney N, Sundaram P, Sengupta P, Mehta S, Attarde S, Maddock S, Manning M, Meherally Z, Ansari K, Lawson H, Yap M, Kew T, Punnoose A, Knight C, Sadeqa E, Cherian J, Ravi S, Chen W, Walker K, O'Donoghue K, van Wely M, van Leeuwen E, Kostova E, Kunst H, Khalil A, Brizuela V, Kara E, Kim CR, Thorson A, Oladapo OT, Mofenson L, Gottlieb SL, Bonet M, Moss N, Zamora J, Allotey J, Thangaratinam S. Effectiveness and safety of COVID-19 vaccines on maternal and perinatal outcomes: a systematic review and meta-analysis. BMJ Glob Health 2024; 9:e014247. [PMID: 38580375 PMCID: PMC11002410 DOI: 10.1136/bmjgh-2023-014247] [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] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/13/2023] [Accepted: 01/26/2024] [Indexed: 04/07/2024] Open
Abstract
OBJECTIVE To assess the effects of COVID-19 vaccines in women before or during pregnancy on SARS-CoV-2 infection-related, pregnancy, offspring and reactogenicity outcomes. DESIGN Systematic review and meta-analysis. DATA SOURCES Major databases between December 2019 and January 2023. STUDY SELECTION Nine pairs of reviewers contributed to study selection. We included test-negative designs, comparative cohorts and randomised trials on effects of COVID-19 vaccines on infection-related and pregnancy outcomes. Non-comparative cohort studies reporting reactogenicity outcomes were also included. QUALITY ASSESSMENT, DATA EXTRACTION AND ANALYSIS Two reviewers independently assessed study quality and extracted data. We undertook random-effects meta-analysis and reported findings as HRs, risk ratios (RRs), ORs or rates with 95% CIs. RESULTS Sixty-seven studies (1 813 947 women) were included. Overall, in test-negative design studies, pregnant women fully vaccinated with any COVID-19 vaccine had 61% reduced odds of SARS-CoV-2 infection during pregnancy (OR 0.39, 95% CI 0.21 to 0.75; 4 studies, 23 927 women; I2=87.2%) and 94% reduced odds of hospital admission (OR 0.06, 95% CI 0.01 to 0.71; 2 studies, 868 women; I2=92%). In adjusted cohort studies, the risk of hypertensive disorders in pregnancy was reduced by 12% (RR 0.88, 95% CI 0.82 to 0.92; 2 studies; 115 085 women), while caesarean section was reduced by 9% (OR 0.91, 95% CI 0.85 to 0.98; 6 studies; 30 192 women). We observed an 8% reduction in the risk of neonatal intensive care unit admission (RR 0.92, 95% CI 0.87 to 0.97; 2 studies; 54 569 women) in babies born to vaccinated versus not vaccinated women. In general, vaccination during pregnancy was not associated with increased risk of adverse pregnancy or perinatal outcomes. Pain at the injection site was the most common side effect reported (77%, 95% CI 52% to 94%; 11 studies; 27 195 women). CONCLUSION COVID-19 vaccines are effective in preventing SARS-CoV-2 infection and related complications in pregnant women. PROSPERO REGISTRATION NUMBER CRD42020178076.
Collapse
Affiliation(s)
- Silvia Fernández-García
- WHO Collaborating Centre for Global Women's Health, Institute of Metabolism and Systems Research, University of Birmingham, Birmingham, UK
| | - Laura Del Campo-Albendea
- Clinical Biostatistics Unit, Hospital Universitario Ramón y Cajal, Madrid, Spain
- CIBERESP, Madrid, Spain
| | | | - Jameela Sheikh
- University of Birmingham College of Medical and Dental Sciences, Birmingham, UK
| | - Karen Lau
- University of Birmingham College of Medical and Dental Sciences, Birmingham, UK
| | - Nana Osei-Lah
- University of Birmingham College of Medical and Dental Sciences, Birmingham, UK
| | - Anoushka Ramkumar
- University of Birmingham College of Medical and Dental Sciences, Birmingham, UK
| | - Harshitha Naidu
- University of Birmingham College of Medical and Dental Sciences, Birmingham, UK
| | - Nicole Stoney
- University of Birmingham College of Medical and Dental Sciences, Birmingham, UK
| | - Paul Sundaram
- University of Birmingham College of Medical and Dental Sciences, Birmingham, UK
| | | | - Samay Mehta
- University of Birmingham College of Medical and Dental Sciences, Birmingham, UK
| | - Shruti Attarde
- University of Birmingham College of Medical and Dental Sciences, Birmingham, UK
| | - Sophie Maddock
- University of Birmingham College of Medical and Dental Sciences, Birmingham, UK
| | - Millie Manning
- University of Birmingham College of Medical and Dental Sciences, Birmingham, UK
| | | | - Kehkashan Ansari
- University of Birmingham College of Medical and Dental Sciences, Birmingham, UK
| | - Heidi Lawson
- University of Birmingham College of Medical and Dental Sciences, Birmingham, UK
| | - Magnus Yap
- University of Birmingham College of Medical and Dental Sciences, Birmingham, UK
| | - Tania Kew
- University of Birmingham College of Medical and Dental Sciences, Birmingham, UK
| | - Andriya Punnoose
- University of Birmingham College of Medical and Dental Sciences, Birmingham, UK
| | - Chloe Knight
- University of Birmingham College of Medical and Dental Sciences, Birmingham, UK
| | - Eyna Sadeqa
- University of Birmingham College of Medical and Dental Sciences, Birmingham, UK
| | - Jiya Cherian
- University of Birmingham College of Medical and Dental Sciences, Birmingham, UK
| | - Sangamithra Ravi
- University of Birmingham College of Medical and Dental Sciences, Birmingham, UK
| | - Wentin Chen
- University of Birmingham College of Medical and Dental Sciences, Birmingham, UK
| | | | | | - Madelon van Wely
- Amsterdam UMC Location AMC Center for Reproductive Medicine, Amsterdam, The Netherlands
| | - Elizabeth van Leeuwen
- Amsterdam UMC Location AMC Department of Obstetrics Gynecology, Amsterdam, The Netherlands
| | - Elena Kostova
- Amsterdam UMC Location AMC Center for Reproductive Medicine, Amsterdam, The Netherlands
| | - Heinke Kunst
- Queen Mary University of London Blizard Institute, London, UK
- Barts Health NHS Trust, London, UK
| | - Asma Khalil
- St George's University of London, London, UK
| | - Vanessa Brizuela
- Department of Reproductive Health and Research, World Health Organization, Geneve, Switzerland
| | - Edna Kara
- Department of Reproductive Health and Research, World Health Organization, Geneve, Switzerland
| | - Caron Rahn Kim
- Department of Reproductive Health and Research, World Health Organization, Geneve, Switzerland
| | - Anna Thorson
- Department of Reproductive Health and Research, World Health Organization, Geneve, Switzerland
| | - Olufemi T Oladapo
- Department of Reproductive Health and Research, World Health Organization, Geneve, Switzerland
| | - Lynne Mofenson
- Research, Elizabeth Glaser Pediatric AIDS Foundation, Washington, District of Columbia, USA
| | - Sami L Gottlieb
- Department of Reproductive Health and Research, World Health Organization, Geneve, Switzerland
| | - Mercedes Bonet
- Department of Reproductive Health and Research, World Health Organization, Geneve, Switzerland
| | | | - Javier Zamora
- WHO Collaborating Centre for Global Women's Health, Institute of Metabolism and Systems Research, University of Birmingham, Birmingham, UK
- Clinical Biostatistics Unit, Hospital Universitario Ramón y Cajal, Madrid, Spain
- CIBERESP, Madrid, Spain
- NIHR Birmingham Biomedical Centre (BRC), University Hospitals Birmingham, Birmingham, UK
| | - John Allotey
- WHO Collaborating Centre for Global Women's Health, Institute of Metabolism and Systems Research, University of Birmingham, Birmingham, UK
- NIHR Birmingham Biomedical Centre (BRC), University Hospitals Birmingham, Birmingham, UK
| | - Shakila Thangaratinam
- WHO Collaborating Centre for Global Women's Health, Institute of Metabolism and Systems Research, University of Birmingham, Birmingham, UK
- NIHR Birmingham Biomedical Centre (BRC), University Hospitals Birmingham, Birmingham, UK
- Birmingham Women's and Children's NHS Foundation Trust, Birmingham, UK
| |
Collapse
|
4
|
Cherri Z, Lau K, Nellums LB, Himmels J, Deal A, McGuire E, Mounier-Jack S, Norredam M, Crawshaw A, Carter J, Seedat F, Clemente NS, Bouaddi O, Friedland JS, Edelstein M, Hargreaves S. The immune status of migrant populations in Europe and implications for vaccine-preventable disease control: a systematic review and meta-analysis. J Travel Med 2024:taae033. [PMID: 38423523 DOI: 10.1093/jtm/taae033] [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] [Received: 12/22/2023] [Revised: 02/10/2024] [Indexed: 03/02/2024]
Abstract
BACKGROUND Ensuring vaccination coverage reaches established herd immunity thresholds (HIT) is the cornerstone of any vaccination programme. Diverse migrant populations in European countries have been associated with cases of vaccine-preventable diseases (VPD) and outbreaks, yet it is not clear to what extent they are an under-immunised group. METHODS We did a systematic review and meta-analysis to synthesise peer-reviewed published primary research reporting data on the immune status of migrants in EU/EEA countries, the UK and Switzerland, calculating their pooled immunity coverage for measles, mumps, rubella, and diphtheria using random-effects models. We searched on Web of Science, Embase, Global Health and MEDLINE (January 1st 2000 to June 10th 2022), with no language restrictions. The protocol is registered with PROSPERO (CRD42018103666). FINDINGS Of 1103 abstracts screened, 62 met eligibility criteria, of which 39 were included in the meta-analysis. The meta-analysis included 75 089 migrants, predominantly from outside Europe. Pooled immunity coverage among migrant populations was well below the recommended HIT for diphtheria (n = 7, 57.4% [95% CI: 43.1-71.7%] I2 = 99% vs HIT 83-86%), measles (n = 21, 83.7% [95% CI: 79.2-88.2] I2 = 99% vs HIT 93-95%), and mumps (n = 8, 67.1% [95% CI: 50.6-83.6] I2 = 99% vs HIT 88-93%), and midway for rubella (n = 29, 85.6% [95% CI: 83.1-88.1%] I2 = 99% vs HIT 83-94%), with high heterogeneity across studies. INTERPRETATION Migrants in Europe are an under-immunised group for a range of important VPDs, with this study reinforcing the importance of engaging children, adolescents, and adults in 'catch-up' vaccination initiatives on arrival for vaccines, doses, and boosters they may have missed in their home countries. Co-designing strategies to strengthen catch-up vaccination across the life-course in under-immunised groups is an important next step if we are to meet European and global targets for VPD elimination and control and ensure vaccine equity.
Collapse
Affiliation(s)
- Zeinab Cherri
- The Migrant Health Research Group, Institute for Infection and Immunity, St Georges, University of London, London, UK
| | - Karen Lau
- The Migrant Health Research Group, Institute for Infection and Immunity, St Georges, University of London, London, UK
- Department of Global Health and Development, Faculty of Public Health and Policy, London School of Hygiene and Tropical Medicine, London
- Lancet Migration European Regional Hub
| | - Laura B Nellums
- Faculty of Medicine and Heath Sciences, University of Nottingham, Nottingham UK
| | - Jan Himmels
- The Migrant Health Research Group, Institute for Infection and Immunity, St Georges, University of London, London, UK
| | - Anna Deal
- The Migrant Health Research Group, Institute for Infection and Immunity, St Georges, University of London, London, UK
- Department of Global Health and Development, Faculty of Public Health and Policy, London School of Hygiene and Tropical Medicine, London
| | - Emma McGuire
- The Migrant Health Research Group, Institute for Infection and Immunity, St Georges, University of London, London, UK
| | - Sandra Mounier-Jack
- Department of Global Health and Development, Faculty of Public Health and Policy, London School of Hygiene and Tropical Medicine, London
| | - Marie Norredam
- Danish Research Centre for Migration, Ethnicity and Health, Section of Health Services Research, Department of Public Health, University of Copenhagen, Denmark
- Department of Infectious Diseases, Hvidovre Hospital, University of Copenhagen
| | - Alison Crawshaw
- The Migrant Health Research Group, Institute for Infection and Immunity, St Georges, University of London, London, UK
| | - Jessica Carter
- The Migrant Health Research Group, Institute for Infection and Immunity, St Georges, University of London, London, UK
| | - Farah Seedat
- The Migrant Health Research Group, Institute for Infection and Immunity, St Georges, University of London, London, UK
| | - Nuria Sanchez Clemente
- The Migrant Health Research Group, Institute for Infection and Immunity, St Georges, University of London, London, UK
| | - Oumnia Bouaddi
- Lancet Migration European Regional Hub
- International School of Public Health, Mohammed VI University of Sciences and Health, Casablanca, Morocco, and Mohammed VI Center for Research and Innovation, Rabat, Morocco
| | - Jon S Friedland
- Institute for Infection and Immunity, St Georges, University of London, London, UK
| | - Michael Edelstein
- Department of Infectious Diseases, Hvidovre Hospital, University of Copenhagen
| | - Sally Hargreaves
- The Migrant Health Research Group, Institute for Infection and Immunity, St Georges, University of London, London, UK
- Lancet Migration European Regional Hub
| |
Collapse
|
5
|
Lau K, Halligan J, Fontana G, Guo C, O'Driscoll FK, Prime M, Ghafur S. Evolution of the clinical simulation approach to assess digital health technologies. Future Healthc J 2023; 10:173-175. [PMID: 37786639 PMCID: PMC10540798 DOI: 10.7861/fhj.2022-0145] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/04/2023]
Abstract
Coronavirus 2019 (COVID-19) has catalysed digital transformation in the health space. However, it remains a challenge to generate timely and cost-effective evidence for digital health technologies (DHTs) to ensure their safety and efficacy. Traditional methods, such as randomised controlled trials (RCTs), are ill-suited for assessing DHTs for reasons of speed, agility, cost and context. Clinical simulation using high-fidelity synthetic patient cases is emerging as a promising yet underexplored method to evaluate DHTs. It offers several advantages, including conducting remote multi-site testing at low cost, inclusion of high-risk patient profiles that are usually excluded from RCTs and adaptability to different local clinical settings. This article shares some of the insights from studies using clinical simulation conducted at the Institute of Global Health Innovation (IGHI) at Imperial College London and describes the evolution of this approach as well as future opportunities.
Collapse
Affiliation(s)
- Karen Lau
- St George's University of London and London School of Hygiene & Tropical Medicine, London, UK; Research Manager at Samuel Hall, London, UK
| | - Jack Halligan
- Imperial College London, London, UK; co-founder and COO at Prova Health, London, UK
| | - Gianluca Fontana
- Imperial College London, London, UK; co-founder and CEO at Prova Health, London, UK
| | | | | | - Matthew Prime
- Roche Diagnostics, Basel, Switzerland; co-founder at Open Medical, London, UK; honorary research fellow at the Institute of Global Health Innovation, Imperial College London, London, UK
| | - Saira Ghafur
- Imperial College London, London, UK; co-founder at Prova Health, London, UK; co-founder at Psyma, London, UK; honorary consultant in Respiratory Medicine at Imperial College Healthcare NHS Trust, London, UK
| |
Collapse
|
6
|
Dumas L, Marfoglia M, Yang B, Hijazi M, Larabi AN, Lau K, Pojer F, Nash MA, Barth P. Uncovering and engineering the mechanical properties of the adhesion GPCR ADGRG1 GAIN domain. bioRxiv 2023:2023.04.05.535724. [PMID: 37066252 PMCID: PMC10104041 DOI: 10.1101/2023.04.05.535724] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 04/18/2023]
Abstract
Key cellular functions depend on the transduction of extracellular mechanical signals by specialized membrane receptors including adhesion G-protein coupled receptors (aGPCRs). While recently solved structures support aGPCR activation through shedding of the extracellular GAIN domain, the molecular mechanisms underpinning receptor mechanosensing remain poorly understood. When probed using single-molecule atomic force spectroscopy and molecular simulations, ADGRG1 GAIN dissociated from its tethered agonist at forces significantly higher than other reported signaling mechanoreceptors. Strong mechanical resistance was achieved through specific structural deformations and force propagation pathways under mechanical load. ADGRG1 GAIN variants computationally designed to lock the alpha and beta subdomains and rewire mechanically-induced structural deformations were found to modulate the GPS-Stachel rupture forces. Our study provides unprecedented insights into the molecular underpinnings of GAIN mechanical stability and paves the way for engineering mechanosensors, better understanding aGPCR function, and informing drug-discovery efforts targeting this important receptor class.
Collapse
|
7
|
Palmer K, Houston A, Macpherson H, Wang W, Quartly F, Grant M, Patel K, Ghose A, Williams S, Farah LL, Conibear J, Giaslakiotis K, Lau K, Ricketts W, Januszewski A. 87P Prognostic models of recurrence-free survival in non-small cell lung cancer. J Thorac Oncol 2023. [DOI: 10.1016/s1556-0864(23)00342-8] [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: 04/04/2023]
|
8
|
Atkinson FS, Cohen M, Lau K, Brand-Miller JC. Glycemic index and insulin index after a standard carbohydrate meal consumed with live kombucha: A randomised, placebo-controlled, crossover trial. Front Nutr 2023; 10:1036717. [PMID: 36875857 PMCID: PMC9982099 DOI: 10.3389/fnut.2023.1036717] [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] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/05/2022] [Accepted: 01/20/2023] [Indexed: 02/19/2023] Open
Abstract
Introduction Kombucha is a complex probiotic beverage made from fermented tea, yet despite extensive historical, anecdotal, and in-vivo evidence for its health benefits, no controlled trials have been published on its effect on humans. Methods We conducted a randomised placebo-controlled, cross-over study that examined the Glycemic Index (GI) and Insulin Index (II) responses after a standardised high-GI meal consumed with three different test beverages (soda water, diet lemonade soft drink and an unpasteurised kombucha) in 11 healthy adults. The study was prospectively registered with the Australian New Zealand Clinical Trials Registry (anzctr.org.au: 12620000460909). Soda water was used as the control beverage. GI or II values were calculated by expressing the 2-h blood glucose or insulin response as a percentage of the response produced by 50 g of glucose dissolved in water. Results There was no statistically significant difference in GI or II between the standard meal consumed with soda water (GI: 86 and II: 85) or diet soft drink (GI: 84 and II: 81, (p = 0.929 for GI and p = 0.374 for II). In contrast, when kombucha was consumed there was a clinically significant reduction in GI and II (GI: 68, p = 0.041 and II: 70, p = 0.041) compared to the meal consumed with soda water. Discussion These results suggest live kombucha can produce reductions in acute postprandial hyperglycemia. Further studies examining the mechanisms and potential therapeutic benefits of kombucha are warranted.
Collapse
Affiliation(s)
- Fiona S Atkinson
- School of Life and Environmental Sciences and Charles Perkins Centre, The University of Sydney, Sydney, NSW, Australia
| | - Marc Cohen
- Extreme Wellness Institute, Melbourne, VIC, Australia
| | - Karen Lau
- School of Life and Environmental Sciences and Charles Perkins Centre, The University of Sydney, Sydney, NSW, Australia
| | - Jennie C Brand-Miller
- School of Life and Environmental Sciences and Charles Perkins Centre, The University of Sydney, Sydney, NSW, Australia
| |
Collapse
|
9
|
Burt K, Fuster M, Odoms-Young A, Folta S, Lau K. The Development and Validation of a Tool Measuring Privilege Within the Dietetics Profession. J Acad Nutr Diet 2022. [DOI: 10.1016/j.jand.2022.08.025] [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: 11/28/2022]
|
10
|
Lau K, Wright A, Sarno M, Kametas NA, Nicolaides KH. Comparison of ophthalmic artery Doppler with PlGF and sFlt-1/PlGF ratio at 35-37 weeks' gestation in prediction of imminent pre-eclampsia. Ultrasound Obstet Gynecol 2022; 59:606-612. [PMID: 35132725 DOI: 10.1002/uog.24874] [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] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/20/2021] [Accepted: 01/28/2022] [Indexed: 06/14/2023]
Abstract
OBJECTIVE To compare the predictive performance for delivery with pre-eclampsia (PE) at < 3 weeks and at any stage after assessment at 35 + 0 to 36 + 6 weeks' gestation of serum placental growth factor (PlGF) and soluble fms-like tyrosine kinase-1 (sFlt-1)/PlGF ratio with that of a competing-risks model utilizing maternal risk factors, mean arterial pressure (MAP) and ophthalmic artery peak systolic velocity (PSV) ratio. METHODS This was a prospective observational study of women attending for a routine hospital visit at 35 + 0 to 36 + 6 weeks' gestation. This visit included recording of maternal demographic characteristics and medical history, ultrasound examination of fetal anatomy and growth, assessment of flow velocity waveforms from the maternal ophthalmic arteries and measurement of MAP, serum PlGF and serum sFlt-1. The performance of screening for delivery with PE at < 3 weeks and at any time after the examination was assessed using areas under the receiver-operating-characteristics curves and detection rates (DRs), at a 10% false-positive rate (FPR). McNemar's test was used to compare DRs, at a 10% FPR, between screening by PlGF concentration, the sFlt-1/PlGF concentration ratio and the competing-risks model utilizing maternal risk factors, MAP and ophthalmic artery PSV ratio. Model-based estimates of screening performance for different methods of screening were also produced. RESULTS The study population of 2338 pregnancies contained 75 (3.2%) cases that developed PE, including 30 (1.3%) that delivered with PE at < 3 weeks from assessment, and 2263 cases unaffected by PE. The DR of PE at < 3 weeks from assessment, at a 10% FPR, of sFlt-1/PlGF ratio (70.0% (95% CI, 50.6-85.3%)) was superior to that of PlGF (50.0% (95% CI, 31.3-68.7%)) or PSV ratio (56.7% (95% CI, 37.4-74.5%)) but inferior to that of the combination of maternal risk factors, MAP multiples of the median (MoM) and PSV ratio delta (96.7% (95% CI, 82.8-99.9%)). Similarly, the DR of PE at any stage after assessment of sFlt-1/PlGF ratio (62.7% (95% CI, 50.7-73.6%)) was superior to that of PlGF (52.0% (95% CI, 40.2-63.7%)) or PSV ratio (41.3% (95% CI, 30.1-53.3%)) but inferior to that of the combination of maternal risk factors, MAP MoM and PSV ratio delta (78.7% (95% CI, 67.7-87.3%)). The empirical results for DR at a 10% FPR were consistent with the modeled results, both for delivery with PE at < 3 weeks and at any time after assessment. CONCLUSION Ophthalmic artery Doppler in combination with maternal risk factors and blood pressure could potentially replace measurement of PlGF and sFlt-1/PlGF ratio in the prediction of imminent PE. © 2022 International Society of Ultrasound in Obstetrics and Gynecology.
Collapse
Affiliation(s)
- K Lau
- Harris Birthright Research Centre for Fetal Medicine, King's College Hospital, London, UK
- Antenatal Hypertension Clinic, King's College Hospital, London, UK
| | - A Wright
- Institute of Health Research, University of Exeter, Exeter, UK
| | - M Sarno
- Harris Birthright Research Centre for Fetal Medicine, King's College Hospital, London, UK
- Department of Obstetrics and Gynecology, Federal University of Bahia (UFBA), Salvador, Bahia, Brazil
| | - N A Kametas
- Harris Birthright Research Centre for Fetal Medicine, King's College Hospital, London, UK
- Antenatal Hypertension Clinic, King's College Hospital, London, UK
| | - K H Nicolaides
- Harris Birthright Research Centre for Fetal Medicine, King's College Hospital, London, UK
| |
Collapse
|
11
|
Canavan B, Poon K, Murdoch D, Lau K, Scalia G, Halim M. Transcatheter Mitral Valve-In-Valve Replacement for Degenerated Bio-Prosthetic Valves: A Single Australian Centre Experience. Heart Lung Circ 2022. [DOI: 10.1016/j.hlc.2022.06.639] [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: 11/16/2022]
|
12
|
Ade PAR, Ahmed Z, Amiri M, Barkats D, Thakur RB, Bischoff CA, Beck D, Bock JJ, Boenish H, Bullock E, Buza V, Cheshire JR, Connors J, Cornelison J, Crumrine M, Cukierman A, Denison EV, Dierickx M, Duband L, Eiben M, Fatigoni S, Filippini JP, Fliescher S, Goeckner-Wald N, Goldfinger DC, Grayson J, Grimes P, Hall G, Halal G, Halpern M, Hand E, Harrison S, Henderson S, Hildebrandt SR, Hilton GC, Hubmayr J, Hui H, Irwin KD, Kang J, Karkare KS, Karpel E, Kefeli S, Kernasovskiy SA, Kovac JM, Kuo CL, Lau K, Leitch EM, Lennox A, Megerian KG, Minutolo L, Moncelsi L, Nakato Y, Namikawa T, Nguyen HT, O'Brient R, Ogburn RW, Palladino S, Prouve T, Pryke C, Racine B, Reintsema CD, Richter S, Schillaci A, Schwarz R, Schmitt BL, Sheehy CD, Soliman A, Germaine TS, Steinbach B, Sudiwala RV, Teply GP, Thompson KL, Tolan JE, Tucker C, Turner AD, Umiltà C, Vergès C, Vieregg AG, Wandui A, Weber AC, Wiebe DV, Willmert J, Wong CL, Wu WLK, Yang H, Yoon KW, Young E, Yu C, Zeng L, Zhang C, Zhang S. Improved Constraints on Primordial Gravitational Waves using Planck, WMAP, and BICEP/Keck Observations through the 2018 Observing Season. Phys Rev Lett 2021; 127:151301. [PMID: 34678017 DOI: 10.1103/physrevlett.127.151301] [Citation(s) in RCA: 18] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/21/2021] [Accepted: 08/12/2021] [Indexed: 06/13/2023]
Abstract
We present results from an analysis of all data taken by the BICEP2, Keck Array, and BICEP3 CMB polarization experiments up to and including the 2018 observing season. We add additional Keck Array observations at 220 GHz and BICEP3 observations at 95 GHz to the previous 95/150/220 GHz dataset. The Q/U maps now reach depths of 2.8, 2.8, and 8.8 μK_{CMB} arcmin at 95, 150, and 220 GHz, respectively, over an effective area of ≈600 square degrees at 95 GHz and ≈400 square degrees at 150 and 220 GHz. The 220 GHz maps now achieve a signal-to-noise ratio on polarized dust emission exceeding that of Planck at 353 GHz. We take auto- and cross-spectra between these maps and publicly available WMAP and Planck maps at frequencies from 23 to 353 GHz and evaluate the joint likelihood of the spectra versus a multicomponent model of lensed ΛCDM+r+dust+synchrotron+noise. The foreground model has seven parameters, and no longer requires a prior on the frequency spectral index of the dust emission taken from measurements on other regions of the sky. This model is an adequate description of the data at the current noise levels. The likelihood analysis yields the constraint r_{0.05}<0.036 at 95% confidence. Running maximum likelihood search on simulations we obtain unbiased results and find that σ(r)=0.009. These are the strongest constraints to date on primordial gravitational waves.
Collapse
Affiliation(s)
- P A R Ade
- School of Physics and Astronomy, Cardiff University, Cardiff CF24 3AA, United Kingdom
| | - Z Ahmed
- Kavli Institute for Particle Astrophysics and Cosmology, SLAC National Accelerator Laboratory, 2575 Sand Hill Rd, Menlo Park, California 94025, USA
| | - M Amiri
- Department of Physics and Astronomy, University of British Columbia, Vancouver, British Columbia V6T 1Z1, Canada
| | - D Barkats
- Center for Astrophysics, Harvard & Smithsonian, Cambridge, Massachusetts 02138, USA
| | - R Basu Thakur
- Department of Physics, California Institute of Technology, Pasadena, California 91125, USA
| | - C A Bischoff
- Department of Physics, University of Cincinnati, Cincinnati, Ohio 45221, USA
| | - D Beck
- Kavli Institute for Particle Astrophysics and Cosmology, SLAC National Accelerator Laboratory, 2575 Sand Hill Rd, Menlo Park, California 94025, USA
- Department of Physics, Stanford University, Stanford, California 94305, USA
| | - J J Bock
- Department of Physics, California Institute of Technology, Pasadena, California 91125, USA
- Jet Propulsion Laboratory, Pasadena, California 91109, USA
| | - H Boenish
- Center for Astrophysics, Harvard & Smithsonian, Cambridge, Massachusetts 02138, USA
| | - E Bullock
- Minnesota Institute for Astrophysics, University of Minnesota, Minneapolis, Minnesota 55455, USA
| | - V Buza
- Kavli Institute for Cosmological Physics, University of Chicago, Chicago, Illinois 60637, USA
| | - J R Cheshire
- Minnesota Institute for Astrophysics, University of Minnesota, Minneapolis, Minnesota 55455, USA
| | - J Connors
- Center for Astrophysics, Harvard & Smithsonian, Cambridge, Massachusetts 02138, USA
| | - J Cornelison
- Center for Astrophysics, Harvard & Smithsonian, Cambridge, Massachusetts 02138, USA
| | - M Crumrine
- School of Physics and Astronomy, University of Minnesota, Minneapolis, Minnesota 55455, USA
| | - A Cukierman
- Kavli Institute for Particle Astrophysics and Cosmology, SLAC National Accelerator Laboratory, 2575 Sand Hill Rd, Menlo Park, California 94025, USA
- Department of Physics, Stanford University, Stanford, California 94305, USA
| | - E V Denison
- National Institute of Standards and Technology, Boulder, Colorado 80305, USA
| | - M Dierickx
- Center for Astrophysics, Harvard & Smithsonian, Cambridge, Massachusetts 02138, USA
| | - L Duband
- Service des Basses Températures, Commissariat à l'Energie Atomique, 38054 Grenoble, France
| | - M Eiben
- Center for Astrophysics, Harvard & Smithsonian, Cambridge, Massachusetts 02138, USA
| | - S Fatigoni
- Department of Physics and Astronomy, University of British Columbia, Vancouver, British Columbia V6T 1Z1, Canada
| | - J P Filippini
- Department of Physics, University of Illinois at Urbana-Champaign, Urbana, Illinois 61801, USA
- Department of Astronomy, University of Illinois at Urbana-Champaign, Urbana, Illinois 61801, USA
| | - S Fliescher
- School of Physics and Astronomy, University of Minnesota, Minneapolis, Minnesota 55455, USA
| | - N Goeckner-Wald
- Department of Physics, Stanford University, Stanford, California 94305, USA
| | - D C Goldfinger
- Center for Astrophysics, Harvard & Smithsonian, Cambridge, Massachusetts 02138, USA
| | - J Grayson
- Department of Physics, Stanford University, Stanford, California 94305, USA
| | - P Grimes
- Center for Astrophysics, Harvard & Smithsonian, Cambridge, Massachusetts 02138, USA
| | - G Hall
- School of Physics and Astronomy, University of Minnesota, Minneapolis, Minnesota 55455, USA
| | - G Halal
- Department of Physics, Stanford University, Stanford, California 94305, USA
| | - M Halpern
- Department of Physics and Astronomy, University of British Columbia, Vancouver, British Columbia V6T 1Z1, Canada
| | - E Hand
- Department of Physics, University of Cincinnati, Cincinnati, Ohio 45221, USA
| | - S Harrison
- Center for Astrophysics, Harvard & Smithsonian, Cambridge, Massachusetts 02138, USA
| | - S Henderson
- Kavli Institute for Particle Astrophysics and Cosmology, SLAC National Accelerator Laboratory, 2575 Sand Hill Rd, Menlo Park, California 94025, USA
| | - S R Hildebrandt
- Department of Physics, California Institute of Technology, Pasadena, California 91125, USA
- Jet Propulsion Laboratory, Pasadena, California 91109, USA
| | - G C Hilton
- National Institute of Standards and Technology, Boulder, Colorado 80305, USA
| | - J Hubmayr
- National Institute of Standards and Technology, Boulder, Colorado 80305, USA
| | - H Hui
- Department of Physics, California Institute of Technology, Pasadena, California 91125, USA
| | - K D Irwin
- Kavli Institute for Particle Astrophysics and Cosmology, SLAC National Accelerator Laboratory, 2575 Sand Hill Rd, Menlo Park, California 94025, USA
- Department of Physics, Stanford University, Stanford, California 94305, USA
- National Institute of Standards and Technology, Boulder, Colorado 80305, USA
| | - J Kang
- Department of Physics, California Institute of Technology, Pasadena, California 91125, USA
- Department of Physics, Stanford University, Stanford, California 94305, USA
| | - K S Karkare
- Center for Astrophysics, Harvard & Smithsonian, Cambridge, Massachusetts 02138, USA
- Kavli Institute for Cosmological Physics, University of Chicago, Chicago, Illinois 60637, USA
| | - E Karpel
- Department of Physics, Stanford University, Stanford, California 94305, USA
| | - S Kefeli
- Department of Physics, California Institute of Technology, Pasadena, California 91125, USA
| | - S A Kernasovskiy
- Department of Physics, Stanford University, Stanford, California 94305, USA
| | - J M Kovac
- Center for Astrophysics, Harvard & Smithsonian, Cambridge, Massachusetts 02138, USA
- Department of Physics, Harvard University, Cambridge, Massachusetts 02138, USA
| | - C L Kuo
- Kavli Institute for Particle Astrophysics and Cosmology, SLAC National Accelerator Laboratory, 2575 Sand Hill Rd, Menlo Park, California 94025, USA
- Department of Physics, Stanford University, Stanford, California 94305, USA
| | - K Lau
- School of Physics and Astronomy, University of Minnesota, Minneapolis, Minnesota 55455, USA
| | - E M Leitch
- Kavli Institute for Cosmological Physics, University of Chicago, Chicago, Illinois 60637, USA
| | - A Lennox
- Department of Physics, University of Illinois at Urbana-Champaign, Urbana, Illinois 61801, USA
| | - K G Megerian
- Jet Propulsion Laboratory, Pasadena, California 91109, USA
| | - L Minutolo
- Department of Physics, California Institute of Technology, Pasadena, California 91125, USA
| | - L Moncelsi
- Department of Physics, California Institute of Technology, Pasadena, California 91125, USA
| | - Y Nakato
- Department of Physics, Stanford University, Stanford, California 94305, USA
| | - T Namikawa
- Kavli Institute for the Physics and Mathematics of the Universe (WPI), UTIAS, The University of Tokyo, Kashiwa, Chiba 277-8583, Japan
| | - H T Nguyen
- Jet Propulsion Laboratory, Pasadena, California 91109, USA
| | - R O'Brient
- Department of Physics, California Institute of Technology, Pasadena, California 91125, USA
- Jet Propulsion Laboratory, Pasadena, California 91109, USA
| | - R W Ogburn
- Kavli Institute for Particle Astrophysics and Cosmology, SLAC National Accelerator Laboratory, 2575 Sand Hill Rd, Menlo Park, California 94025, USA
- Department of Physics, Stanford University, Stanford, California 94305, USA
| | - S Palladino
- Department of Physics, University of Cincinnati, Cincinnati, Ohio 45221, USA
| | - T Prouve
- Service des Basses Températures, Commissariat à l'Energie Atomique, 38054 Grenoble, France
| | - C Pryke
- Minnesota Institute for Astrophysics, University of Minnesota, Minneapolis, Minnesota 55455, USA
- School of Physics and Astronomy, University of Minnesota, Minneapolis, Minnesota 55455, USA
| | - B Racine
- Center for Astrophysics, Harvard & Smithsonian, Cambridge, Massachusetts 02138, USA
- Aix-Marseille Université, CNRS/IN2P3, CPPM, Marseille 13288, France
| | - C D Reintsema
- National Institute of Standards and Technology, Boulder, Colorado 80305, USA
| | - S Richter
- Center for Astrophysics, Harvard & Smithsonian, Cambridge, Massachusetts 02138, USA
| | - A Schillaci
- Department of Physics, California Institute of Technology, Pasadena, California 91125, USA
| | - R Schwarz
- School of Physics and Astronomy, University of Minnesota, Minneapolis, Minnesota 55455, USA
| | - B L Schmitt
- Center for Astrophysics, Harvard & Smithsonian, Cambridge, Massachusetts 02138, USA
| | - C D Sheehy
- Physics Department, Brookhaven National Laboratory, Upton, New York 11973, USA
| | - A Soliman
- Department of Physics, California Institute of Technology, Pasadena, California 91125, USA
| | - T St Germaine
- Center for Astrophysics, Harvard & Smithsonian, Cambridge, Massachusetts 02138, USA
- Department of Physics, Harvard University, Cambridge, Massachusetts 02138, USA
| | - B Steinbach
- Department of Physics, California Institute of Technology, Pasadena, California 91125, USA
| | - R V Sudiwala
- School of Physics and Astronomy, Cardiff University, Cardiff CF24 3AA, United Kingdom
| | - G P Teply
- Department of Physics, California Institute of Technology, Pasadena, California 91125, USA
| | - K L Thompson
- Kavli Institute for Particle Astrophysics and Cosmology, SLAC National Accelerator Laboratory, 2575 Sand Hill Rd, Menlo Park, California 94025, USA
- Department of Physics, Stanford University, Stanford, California 94305, USA
| | - J E Tolan
- Department of Physics, Stanford University, Stanford, California 94305, USA
| | - C Tucker
- School of Physics and Astronomy, Cardiff University, Cardiff CF24 3AA, United Kingdom
| | - A D Turner
- Jet Propulsion Laboratory, Pasadena, California 91109, USA
| | - C Umiltà
- Department of Physics, University of Cincinnati, Cincinnati, Ohio 45221, USA
- Department of Physics, University of Illinois at Urbana-Champaign, Urbana, Illinois 61801, USA
| | - C Vergès
- Center for Astrophysics, Harvard & Smithsonian, Cambridge, Massachusetts 02138, USA
| | - A G Vieregg
- Kavli Institute for Cosmological Physics, University of Chicago, Chicago, Illinois 60637, USA
- Department of Physics, Enrico Fermi Institute, University of Chicago, Chicago, Illinois 60637, USA
| | - A Wandui
- Department of Physics, California Institute of Technology, Pasadena, California 91125, USA
| | - A C Weber
- Jet Propulsion Laboratory, Pasadena, California 91109, USA
| | - D V Wiebe
- Department of Physics and Astronomy, University of British Columbia, Vancouver, British Columbia V6T 1Z1, Canada
| | - J Willmert
- School of Physics and Astronomy, University of Minnesota, Minneapolis, Minnesota 55455, USA
| | - C L Wong
- Center for Astrophysics, Harvard & Smithsonian, Cambridge, Massachusetts 02138, USA
- Department of Physics, Harvard University, Cambridge, Massachusetts 02138, USA
| | - W L K Wu
- Kavli Institute for Particle Astrophysics and Cosmology, SLAC National Accelerator Laboratory, 2575 Sand Hill Rd, Menlo Park, California 94025, USA
| | - H Yang
- Department of Physics, Stanford University, Stanford, California 94305, USA
| | - K W Yoon
- Kavli Institute for Particle Astrophysics and Cosmology, SLAC National Accelerator Laboratory, 2575 Sand Hill Rd, Menlo Park, California 94025, USA
- Department of Physics, Stanford University, Stanford, California 94305, USA
| | - E Young
- Kavli Institute for Particle Astrophysics and Cosmology, SLAC National Accelerator Laboratory, 2575 Sand Hill Rd, Menlo Park, California 94025, USA
- Department of Physics, Stanford University, Stanford, California 94305, USA
| | - C Yu
- Department of Physics, Stanford University, Stanford, California 94305, USA
| | - L Zeng
- Center for Astrophysics, Harvard & Smithsonian, Cambridge, Massachusetts 02138, USA
| | - C Zhang
- Department of Physics, California Institute of Technology, Pasadena, California 91125, USA
| | - S Zhang
- Department of Physics, California Institute of Technology, Pasadena, California 91125, USA
| |
Collapse
|
13
|
Folch E, Arenberg D, Bansal S, Bezzi M, Bhadra K, Bowling M, Christensen M, Flandes J, Gildea T, Hogarth K, Krimsky W, Lamprecht B, Lau K, Lemense G, Mahajan A, Murgu S, Murillo B, Nead M, Pritchett M, Singh J, Towe C, Khandhar S. MA02.05 NAVIGATE 24-Month Results: Electromagnetic Navigation Bronchoscopy for Pulmonary Lesions at 37 Centers in Europe and the US. J Thorac Oncol 2021. [DOI: 10.1016/j.jtho.2021.01.209] [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]
|
14
|
Capleton P, Ricketts W, Lau K, Ellis S, Sheaff M, Giaslakiotis K, Uys S, Tchrakian N. Pneumothorax and Pneumatocoele Formation in a Patient with COVID-19: a Case Report. ACTA ACUST UNITED AC 2021; 3:269-272. [PMID: 33432305 PMCID: PMC7788383 DOI: 10.1007/s42399-020-00689-z] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 12/02/2020] [Indexed: 02/07/2023]
Abstract
Coronavirus disease 2019 (COVID-19) causes significant morbidity and mortality for a proportion of infected patients, and our knowledge and understanding of its clinical, radiological and histopathological features are still evolving. An association between COVID-19 and pneumothorax has been described in an increasing number of case reports and series in the literature, which have largely focused on clinical and imaging features. We report the case of a patient who developed COVID-19 complicated by pneumothorax, requiring surgical intervention. We describe the histopathological features seen in the thorascopically resected bullectomy specimen—this is, to our knowledge, the first reported description of the morphological features of pneumothorax in this important clinical setting.
Collapse
Affiliation(s)
- P. Capleton
- Department of Pathology, The Royal London Hospital,, Barts Health NHS Trust, London, UK
| | - W. Ricketts
- Department of Respiratory Medicine, Barts Thorax Centre, Barts Health NHS Trust, London, UK
| | - K. Lau
- Department of Thoracic Surgery, Barts Thorax Centre, Barts Health NHS Trust, London, UK
| | - S. Ellis
- Department of Diagnostic Imaging, Barts Health NHS Trust, London, UK
| | - M. Sheaff
- Department of Pathology, The Royal London Hospital,, Barts Health NHS Trust, London, UK
| | - K. Giaslakiotis
- Department of Pathology, The Royal London Hospital,, Barts Health NHS Trust, London, UK
| | - S. Uys
- Department of Respiratory Medicine, Barts Thorax Centre, Barts Health NHS Trust, London, UK
| | - Nairi Tchrakian
- Department of Pathology, The Royal London Hospital,, Barts Health NHS Trust, London, UK
| |
Collapse
|
15
|
Sellers SL, Hensey M, Cartlidge TRG, Turner CT, Lau K, Lai A, Salcudean H, Sathananthan J, McManus BM, Granville DJ, Payne GW, Pibarot P, Webb JG, Newby DE, Blanke P, Seidman MA, Dweck MR, Leipsic JA. Tricuspid Valve-in-Valve and Bioprosthetic Surgical Tricuspid and Pulmonic Valve Degeneration: Lessons From Imaging and Histopathology. JACC Cardiovasc Imaging 2020; 13:2680-2682. [PMID: 32739371 DOI: 10.1016/j.jcmg.2020.06.008] [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] [Received: 01/03/2020] [Revised: 05/28/2020] [Accepted: 06/03/2020] [Indexed: 10/23/2022]
|
16
|
McLean KA, Ahmed WUR, Akhbari M, Claireaux HA, English C, Frost J, Henshall DE, Khan M, Kwek I, Nicola M, Rehman S, Varghese S, Drake TM, Bell S, Nepogodiev D, McLean KA, Drake TM, Glasbey JC, Borakati A, Drake TM, Kamarajah S, McLean KA, Bath MF, Claireaux HA, Gundogan B, Mohan M, Deekonda P, Kong C, Joyce H, Mcnamee L, Woin E, Burke J, Khatri C, Fitzgerald JE, Harrison EM, Bhangu A, Nepogodiev D, Arulkumaran N, Bell S, Duthie F, Hughes J, Pinkney TD, Prowle J, Richards T, Thomas M, Dynes K, Patel M, Patel P, Wigley C, Suresh R, Shaw A, Klimach S, Jull P, Evans D, Preece R, Ibrahim I, Manikavasagar V, Smith R, Brown FS, Deekonda P, Teo R, Sim DPY, Borakati A, Logan AE, Barai I, Amin H, Suresh S, Sethi R, Bolton W, Corbridge O, Horne L, Attalla M, Morley R, Robinson C, Hoskins T, McAllister R, Lee S, Dennis Y, Nixon G, Heywood E, Wilson H, Ng L, Samaraweera S, Mills A, Doherty C, Woin E, Belchos J, Phan V, Chouari T, Gardner T, Goergen N, Hayes JDB, MacLeod CS, McCormack R, McKinley A, McKinstry S, Milligan W, Ooi L, Rafiq NM, Sammut T, Sinclair E, Smith M, Baker C, Boulton APR, Collins J, Copley HC, Fearnhead N, Fox H, Mah T, McKenna J, Naruka V, Nigam N, Nourallah B, Perera S, Qureshi A, Saggar S, Sun L, Wang X, Yang DD, Caroll P, Doyle C, Elangovan S, Falamarzi A, Perai KG, Greenan E, Jain D, Lang-Orsini M, Lim S, O'Byrne L, Ridgway P, Van der Laan S, Wong J, Arthur J, Barclay J, Bradley P, Edwin C, Finch E, Hayashi E, Hopkins M, Kelly D, Kelly M, McCartan N, Ormrod A, Pakenham A, Hayward J, Hitchen C, Kishore A, Martins T, Philomen J, Rao R, Rickards C, Burns N, Copeland M, Durand C, Dyal A, Ghaffar A, Gidwani A, Grant M, Gribbon C, Gruhn A, Leer M, Ahmad K, Beattie G, Beatty M, Campbell G, Donaldson G, Graham S, Holmes D, Kanabar S, Liu H, McCann C, Stewart R, Vara S, Ajibola-Taylor O, Andah EJE, Ani C, Cabdi NMO, Ito G, Jones M, Komoriyama A, Patel P, Titu L, Basra M, Gallogly P, Harinath G, Leong SH, Pradhan A, Siddiqui I, Zaat S, Ali A, Galea M, Looi WL, Ng JCK, Atkin G, Azizi A, Cargill Z, China Z, Elliot J, Jebakumar R, Lam J, Mudalige G, Onyerindu C, Renju M, Babu VS, Hussain M, Joji N, Lovett B, Mownah H, Ali B, Cresswell B, Dhillon AK, Dupaguntla YS, Hungwe C, Lowe-Zinola JD, Tsang JCH, Bevan K, Cardus C, Duggal A, Hossain S, McHugh M, Scott M, Chan F, Evans R, Gurung E, Haughey B, Jacob-Ramsdale B, Kerr M, Lee J, McCann E, O'Boyle K, Reid N, Hayat F, Hodgson S, Johnston R, Jones W, Khan M, Linn T, Long S, Seetharam P, Shaman S, Smart B, Anilkumar A, Davies J, Griffith J, Hughes B, Islam Y, Kidanu D, Mushaini N, Qamar I, Robinson H, Schramm M, Tan CY, Apperley H, Billyard C, Blazeby JM, Cannon SP, Carse S, Göpfert A, Loizidou A, Parkin J, Sanders E, Sharma S, Slade G, Telfer R, Huppatz IW, Worley E, Chandramoorthy L, Friend C, Harris L, Jain P, Karim MJ, Killington K, McGillicuddy J, Rafferty C, Rahunathan N, Rayne T, Varathan Y, Verma N, Zanichelli D, Arneill M, Brown F, Campbell B, Crozier L, Henry J, McCusker C, Prabakaran P, Wilson R, Asif U, Connor M, Dindyal S, Math N, Pagarkar A, Saleem H, Seth I, Sharma S, Standfield N, Swartbol T, Adamson R, Choi JE, El Tokhy O, Ho W, Javaid NR, Kelly M, Mehdi AS, Menon D, Plumptre I, Sturrock S, Turner J, Warren O, Crane E, Ferris B, Gadsby C, Smallwood J, Vipond M, Wilson V, Amarnath T, Doshi A, Gregory C, Kandiah K, Powell B, Spoor H, Toh C, Vizor R, Common M, Dunleavy K, Harris S, Luo C, Mesbah Z, Kumar AP, Redmond A, Skulsky S, Walsh T, Daly D, Deery L, Epanomeritakis E, Harty M, Kane D, Khan K, Mackey R, McConville J, McGinnity K, Nixon G, Ang A, Kee JY, Leung E, Norman S, Palaniappan SV, Sarathy PP, Yeoh T, Frost J, Hazeldine P, Jones L, Karbowiak M, Macdonald C, Mutarambirwa A, Omotade A, Runkel M, Ryan G, Sawers N, Searle C, Suresh S, Vig S, Ahmad A, McGartland R, Sim R, Song A, Wayman J, Brown R, Chang LH, Concannon K, Crilly C, Arnold TJ, Burgin A, Cadden F, Choy CH, Coleman M, Lim D, Luk J, Mahankali-Rao P, Prudence-Taylor AJ, Ramakrishnan D, Russell J, Fawole A, Gohil J, Green B, Hussain A, McMenamin L, McMenamin L, Tang M, Azmi F, Benchetrit S, Cope T, Haque A, Harlinska A, Holdsworth R, Ivo T, Martin J, Nisar T, Patel A, Sasapu K, Trevett J, Vernet G, Aamir A, Bird C, Durham-Hall A, Gibson W, Hartley J, May N, Maynard V, Johnson S, Wood CM, O'Brien M, Orbell J, Stringfellow TD, Tenters F, Tresidder S, Cheung W, Grant A, Tod N, Bews-Hair M, Lim ZH, Lim SW, Vella-Baldacchino M, Auckburally S, Chopada A, Easdon S, Goodson R, McCurdie F, Narouz M, Radford A, Rea E, Taylor O, Yu T, Alfa-Wali M, Amani L, Auluck I, Bruce P, Emberton J, Kumar R, Lagzouli N, Mehta A, Murtaza A, Raja M, Dennahy IS, Frew K, Given A, He YY, Karim MA, MacDonald E, McDonald E, McVinnie D, Ng SK, Pettit A, Sim DPY, Berthaume-Hawkins SD, Charnley R, Fenton K, Jones D, Murphy C, Ng JQ, Reehal R, Robinson H, Seraj SS, Shang E, Tonks A, White P, Yeo A, Chong P, Gabriel R, Patel N, Richardson E, Symons L, Aubrey-Jones D, Dawood S, Dobrzynska M, Faulkner S, Griffiths H, Mahmood F, Patel P, Perry M, Power A, Simpson R, Ali A, Brobbey P, Burrows A, Elder P, Ganyani R, Horseman C, Hurst P, Mann H, Marimuthu K, McBride S, Pilsworth E, Powers N, Stanier P, Innes R, Kersey T, Kopczynska M, Langasco N, Patel N, Rajagopal R, Atkins B, Beasley W, Lim ZC, Gill A, Ang HL, Williams H, Yogeswara T, Carter R, Fam M, Fong J, Latter J, Long M, Mackinnon S, McKenzie C, Osmanska J, Raghuvir V, Shafi A, Tsang K, Walker L, Bountra K, Coldicutt O, Fletcher D, Hudson S, Iqbal S, Bernal TL, Martin JWB, Moss-Lawton F, Smallwood J, Vipond M, Cardwell A, Edgerton K, Laws J, Rai A, Robinson K, Waite K, Ward J, Youssef H, Knight C, Koo PY, Lazarou A, Stanger S, Thorn C, Triniman MC, Botha A, Boyles L, Cumming S, Deepak S, Ezzat A, Fowler AJ, Gwozdz AM, Hussain SF, Khan S, Li H, Morrell BL, Neville J, Nitiahpapand R, Pickering O, Sagoo H, Sharma E, Welsh K, Denley S, Khan S, Agarwal M, Al-Saadi N, Bhambra R, Gupta A, Jawad ZAR, Jiao LR, Khan K, Mahir G, Singagireson S, Thoms BL, Tseu B, Wei R, Yang N, Britton N, Leinhardt D, Mahfooz M, Palkhi A, Price M, Sheikh S, Barker M, Bowley D, Cant M, Datta U, Farooqi M, Lee A, Morley G, Amin MN, Parry A, Patel S, Strang S, Yoganayagam N, Adlan A, Chandramoorthy S, Choudhary Y, Das K, Feldman M, France B, Grace R, Puddy H, Soor P, Ali M, Dhillon P, Faraj A, Gerard L, Glover M, Imran H, Kim S, Patrick Y, Peto J, Prabhudesai A, Smith R, Tang A, Vadgama N, Dhaliwal R, Ecclestone T, Harris A, Ong D, Patel D, Philp C, Stewart E, Wang L, Wong E, Xu Y, Ashaye T, Fozard T, Galloway F, Kaptanis S, Mistry P, Nguyen T, Olagbaiye F, Osman M, Philip Z, Rembacken R, Tayeh S, Theodoropoulou K, Herman A, Lau J, Saha A, Trotter M, Adeleye O, Cave D, Gunwa T, Magalhães J, Makwana S, Mason R, Parish M, Regan H, Renwick P, Roberts G, Salekin D, Sivakumar C, Tariq A, Liew I, McDade A, Stewart D, Hague M, Hudson-Peacock N, Jackson CES, James F, Pitt J, Walker EY, Aftab R, Ang JJ, Anwar S, Battle J, Budd E, Chui J, Crook H, Davies P, Easby S, Hackney E, Ho B, Imam SZ, Rammell J, Andrews H, Perry C, Schinle P, Ahmed P, Aquilina T, Balai E, Church M, Cumber E, Curtis A, Davies G, Dennis Y, Dumann E, Greenhalgh S, Kim P, King S, Metcalfe KHM, Passby L, Redgrave N, Soonawalla Z, Waters S, Zornoza A, Gulzar I, Hole J, Hull K, Ishaq H, Karaj J, Kelkar A, Love E, Patel S, Thakrar D, Vine M, Waterman A, Dib NP, Francis N, Hanson M, Ingleton R, Sadanand KS, Sukirthan N, Arnell S, Ball M, Bassam N, Beghal G, Chang A, Dawe V, George A, Huq T, Hussain A, Ikram B, Kanapeckaite L, Khan M, Ramjas D, Rushd A, Sait S, Serry M, Yardimci E, Capella S, Chenciner L, Episkopos C, Karam E, McCarthy C, Moore-Kelly W, Watson N, Ahluwalia V, Barnfield J, Ben-Gal O, Bloom I, Gharatya A, Khodatars K, Merchant N, Moonan A, Moore M, Patel K, Spiers H, Sundaram K, Turner J, Bath MF, Black J, Chadwick H, Huisman L, Ingram H, Khan S, Martin L, Metcalfe M, Sangal P, Seehra J, Thatcher A, Venturini S, Whitcroft I, Afzal Z, Brown S, Gani A, Gomaa A, Hussein N, Oh SY, Pazhaniappan N, Sharkey E, Sivagnanasithiyar T, Williams C, Yeung J, Cruddas L, Gurjar S, Pau A, Prakash R, Randhawa R, Chen L, Eiben I, Naylor M, Osei-Bordom D, Trenear R, Bannard-Smith J, Griffiths N, Patel BY, Saeed F, Abdikadir H, Bennett M, Church R, Clements SE, Court J, Delvi A, Hubert J, Macdonald B, Mansour F, Patel RR, Perris R, Small S, Betts A, Brown N, Chong A, Croitoru C, Grey A, Hickland P, Ho C, Hollington D, McKie L, Nelson AR, Stewart H, Eiben P, Nedham M, Ali I, Brown T, Cumming S, Hunt C, Joyner C, McAlinden C, Roberts J, Rogers D, Thachettu A, Tyson N, Vaughan R, Verma N, Yasin T, Andrew K, Bhamra N, Leong S, Mistry R, Noble H, Rashed F, Walker NR, Watson L, Worsfold M, Yarham E, Abdikadir H, Arshad A, Barmayehvar B, Cato L, Chan-lam N, Do V, Leong A, Sheikh Z, Zheleniakova T, Coppel J, Hussain ST, Mahmood R, Nourzaie R, Prowle J, Sheik-Ali S, Thomas A, Alagappan A, Ashour R, Bains H, Diamond J, Gordon J, Ibrahim B, Khalil M, Mittapalli D, Neo YN, Patil P, Peck FS, Reza N, Swan I, Whyte M, Chaudhry S, Hernon J, Khawar H, O'Brien J, Pullinger M, Rothnie K, Ujjal S, Bhatte S, Curtis J, Green S, Mayer A, Watkinson G, Chapple K, Hawthorne T, Khaliq M, Majkowski L, Malik TAM, Mclauchlan K, En BNW, Parton S, Robinson SD, Saat MI, Shurovi BN, Varatharasasingam K, Ward AE, Behranwala K, Bertelli M, Cohen J, Duff F, Fafemi O, Gupta R, Manimaran M, Mayhew J, Peprah D, Wong MHY, Farmer N, Houghton C, Kandhari N, Khan K, Ladha D, Mayes J, McLennan F, Panahi P, Seehra H, Agrawal R, Ahmed I, Ali S, Birkinshaw F, Choudhry M, Gokani S, Harrogate S, Jamal S, Nawrozzadeh F, Swaray A, Szczap A, Warusavitarne J, Abdalla M, Asemota N, Cullum R, Hartley M, Maxwell-Armstrong C, Mulvenna C, Phillips J, Yule A, Ahmed L, Clement KD, Craig N, Elseedawy E, Gorman D, Kane L, Livie J, Livie V, Moss E, Naasan A, Ravi F, Shields P, Zhu Y, Archer M, Cobley H, Dennis R, Downes C, Guevel B, Lamptey E, Murray H, Radhakrishnan A, Saravanabavan S, Sardar M, Shaw C, Tilliridou V, Wright R, Ye W, Alturki N, Helliwell R, Jones E, Kelly D, Lambotharan S, Scott K, Sivakumar R, Victor L, Boraluwe-Rallage H, Froggatt P, Haynes S, Hung YMA, Keyte A, Matthews L, Evans E, Haray P, John I, Mathivanan A, Morgan L, Oji O, Okorocha C, Rutherford A, Spiers H, Stageman N, Tsui A, Whitham R, Amoah-Arko A, Cecil E, Dietrich A, Fitzpatrick H, Guy C, Hair J, Hilton J, Jawad L, McAleer E, Taylor Z, Yap J, Akhbari M, Debnath D, Dhir T, Elbuzidi M, Elsaddig M, Glace S, Khawaja H, Koshy R, Lal K, Lobo L, McDermott A, Meredith J, Qamar MA, Vaidya A, Acquaah F, Barfi L, Carter N, Gnanappiragasam D, Ji C, Kaminski F, Lawday S, Mackay K, Sulaiman SK, Webb R, Ananthavarathan P, Dalal F, Farrar E, Hashemi R, Hossain M, Jiang J, Kiandee M, Lex J, Mason L, Matthews JH, McGeorge E, Modhwadia S, Pinkney T, Radotra A, Rickard L, Rodman L, Sales A, Tan KL, Bachi A, Bajwa DS, Battle J, Brown LR, Butler A, Calciu A, Davies E, Gardner I, Girdlestone T, Ikogho O, Keelan G, O'Loughlin P, Tam J, Elias J, Ngaage M, Thompson J, Bristow S, Brock E, Davis H, Pantelidou M, Sathiyakeerthy A, Singh K, Chaudhry A, Dickson G, Glen P, Gregoriou K, Hamid H, Mclean A, Mehtaji P, Neophytou G, Potts S, Belgaid DR, Burke J, Durno J, Ghailan N, Hanson M, Henshaw V, Nazir UR, Omar I, Riley BJ, Roberts J, Smart G, Van Winsen K, Bhatti A, Chan M, D'Auria M, Green S, Keshvala C, Li H, Maxwell-Armstrong C, Michaelidou M, Simmonds L, Smith C, Wimalathasan A, Abbas J, Cairns C, Chin YR, Connelly A, Moug S, Nair A, Svolkinas D, Coe P, Subar D, Wang H, Zaver V, Brayley J, Cookson P, Cunningham L, Gaukroger A, Ho M, Hough A, King J, O'Hagan D, Widdison A, Brown R, Brown B, Chavan A, Francis S, Hare L, Lund J, Malone N, Mavi B, McIlwaine A, Rangarajan S, Abuhussein N, Campbell HS, Daniels J, Fitzgerald I, Mansfield S, Pendrill A, Robertson D, Smart YW, Teng T, Yates J, Belgaumkar A, Katira A, Kossoff J, Kukran S, Laing C, Mathew B, Mohamed T, Myers S, Novell R, Phillips BL, Thomas M, Turlejski T, Turner S, Varcada M, Warren L, Wynell-Mayow W, Church R, Linley-Adams L, Osborn G, Saunders M, Spencer R, Srikanthan M, Tailor S, Tullett A, Ali M, Al-Masri S, Carr G, Ebhogiaye O, Heng S, Manivannan S, Manley J, McMillan LE, Peat C, Phillips B, Thomas S, Whewell H, Williams G, Bienias A, Cope EA, Courquin GR, Day L, Garner C, Gimson A, Harris C, Markham K, Moore T, Nadin T, Phillips C, Subratty SM, Brown K, Dada J, Durbacz M, Filipescu T, Harrison E, Kennedy ED, Khoo E, Kremel D, Lyell I, Pronin S, Tummon R, Ventre C, Walls L, Wootton E, Akhtar A, Davies E, El-Sawy D, Farooq M, Gaddah M, Griffiths H, Katsaiti I, Khadem N, Leong K, Williams I, Chean CS, Chudek D, Desai H, Ellerby N, Hammad A, Malla S, Murphy B, Oshin O, Popova P, Rana S, Ward T, Abbott TEF, Akpenyi O, Edozie F, El Matary R, English W, Jeyabaladevan S, Morgan C, Naidu V, Nicholls K, Peroos S, Prowle J, Sansome S, Torrance HD, Townsend D, Brecher J, Fung H, Kazmi Z, Outlaw P, Pursnani K, Ramanujam N, Razaq A, Sattar M, Sukumar S, Tan TSE, Chohan K, Dhuna S, Haq T, Kirby S, Lacy-Colson J, Logan P, Malik Q, McCann J, Mughal Z, Sadiq S, Sharif I, Shingles C, Simon A, Burnage S, Chan SSN, Craig ARJ, Duffield J, Dutta A, Eastwood M, Iqbal F, Mahmood F, Mahmood W, Patel C, Qadeer A, Robinson A, Rotundo A, Schade A, Slade RD, De Freitas M, Kinnersley H, McDowell E, Moens-Lecumberri S, Ramsden J, Rockall T, Wiffen L, Wright S, Bruce C, Francois V, Hamdan K, Limb C, Lunt AJ, Manley L, Marks M, Phillips CFE, Agnew CJF, Barr CJ, Benons N, Hart SJ, Kandage D, Krysztopik R, Mahalingam P, Mock J, Rajendran S, Stoddart MT, Clements B, Gillespie H, Lee S, McDougall R, Murray C, O'Loane R, Periketi S, Tan S, Amoah R, Bhudia R, Dudley B, Gilbert A, Griffiths B, Khan H, McKigney N, Roberts B, Samuel R, Seelarbokus A, Stubbing-Moore A, Thompson G, Williams P, Ahmed N, Akhtar R, Chandler E, Chappelow I, Gil H, Gower T, Kale A, Lingam G, Rutler L, Sellahewa C, Sheikh A, Stringer H, Taylor R, Aglan H, Ashraf MR, Choo S, Das E, Epstein J, Gentry R, Mills D, Poolovadoo Y, Ward N, Bull K, Cole A, Hack J, Khawari S, Lake C, Mandishona T, Perry R, Sleight S, Sultan S, Thornton T, Williams S, Arif T, Castle A, Chauhan P, Chesner R, Eilon T, Kamarajah S, Kambasha C, Lock L, Loka T, Mohammad F, Motahariasl S, Roper L, Sadhra SS, Sheikh A, Toma T, Wadood Q, Yip J, Ainger E, Busti S, Cunliffe L, Flamini T, Gaffing S, Moorcroft C, Peter M, Simpson L, Stokes E, Stott G, Wilson J, York J, Yousaf A, Borakati A, Brown M, Goaman A, Hodgson B, Ijeomah A, Iroegbu U, Kaur G, Lowe C, Mahmood S, Sattar Z, Sen P, Szuman A, Abbas N, Al-Ausi M, Anto N, Bhome R, Eccles L, Elliott J, Hughes EJ, Jones A, Karunatilleke AS, Knight JS, Manson CCF, Mekhail I, Michaels L, Noton TM, Okenyi E, Reeves T, Yasin IH, Banfield DA, Harris R, Lim D, Mason-Apps C, Roe T, Sandhu J, Shafiq N, Stickler E, Tam JP, Williams LM, Ainsworth P, Boualbanat Y, Doull C, Egan E, Evans L, Hassanin K, Ninkovic-Hall G, Odunlami W, Shergill M, Traish M, Cummings D, Kershaw S, Ong J, Reid F, Toellner H, Alwandi A, Amer M, George D, Haynes K, Hughes K, Peakall L, Premakumar Y, Punjabi N, Ramwell A, Sawkins H, Ashwood J, Baker A, Baron C, Bhide I, Blake E, De Cates C, Esmail R, Hosamuddin H, Kapp J, Nguru N, Raja M, Thomson F, Ahmed H, Aishwarya G, Al-Huneidi R, Ali S, Aziz R, Burke D, Clarke B, Kausar A, Maskill D, Mecia L, Myers L, Smith ACD, Walker G, Wroe N, Donohoe C, Gibbons D, Jordan P, Keogh C, Kiely A, Lalor P, McCrohan M, Powell C, Foley MP, Reynolds J, Silke E, Thorpe O, Kong JTH, White C, Ali Q, Dalrymple J, Ge Y, Khan H, Luo RS, Paine H, Paraskeva B, Parker L, Pillai K, Salciccioli J, Selvadurai S, Sonagara V, Springford LR, Tan L, Appleton S, Leadholm N, Zhang Y, Ahern D, Cotter M, Cremen S, Durrigan T, Flack V, Hrvacic N, Jones H, Jong B, Keane K, O'Connell PR, O'sullivan J, Pek G, Shirazi S, Barker C, Brown A, Carr W, Chen Y, Guillotte C, Harte J, Kokayi A, Lau K, McFarlane S, Morrison S, Broad J, Kenefick N, Makanji D, Printz V, Saito R, Thomas O, Breen H, Kirk S, Kong CH, O'Kane A, Eddama M, Engledow A, Freeman SK, Frost A, Goh C, Lee G, Poonawala R, Suri A, Taribagil P, Brown H, Christie S, Dean S, Gravell R, Haywood E, Holt F, Pilsworth E, Rabiu R, Roscoe HW, Shergill S, Sriram A, Sureshkumar A, Tan LC, Tanna A, Vakharia A, Bhullar S, Brannick S, Dunne E, Frere M, Kerin M, Kumar KM, Pratumsuwan T, Quek R, Salman M, Van Den Berg N, Wong C, Ahluwalia J, Bagga R, Borg CM, Calabria C, Draper A, Farwana M, Joyce H, Khan A, Mazza M, Pankin G, Sait MS, Sandhu N, Virani N, Wong J, Woodhams K, Croghan N, Ghag S, Hogg G, Ismail O, John N, Nadeem K, Naqi M, Noe SM, Sharma A, Tan S, Begum F, Best R, Collishaw A, Glasbey J, Golding D, Gwilym B, Harrison P, Jackman T, Lewis N, Luk YL, Porter T, Potluri S, Stechman M, Tate S, Thomas D, Walford B, Auld F, Bleakley A, Johnston S, Jones C, Khaw J, Milne S, O'Neill S, Singh KKR, Smith R, Swan A, Thorley N, Yalamarthi S, Yin ZD, Ali A, Balian V, Bana R, Clark K, Livesey C, McLachlan G, Mohammad M, Pranesh N, Richards C, Ross F, Sajid M, Brooke M, Francombe J, Gresly J, Hutchinson S, Kerrigan K, Matthews E, Nur S, Parsons L, Sandhu A, Vyas M, White F, Zulkifli A, Zuzarte L, Al-Mousawi A, Arya J, Azam S, Yahaya AA, Gill K, Hallan R, Hathaway C, Leptidis I, McDonagh L, Mitrasinovic S, Mushtaq N, Pang N, Peiris GB, Rinkoff S, Chan L, Christopher E, Farhan-Alanie MMH, Gonzalez-Ciscar A, Graham CJ, Lim H, McLean KA, Paterson HM, Rogers A, Roy C, Rutherford D, Smith F, Zubikarai G, Al-Khudairi R, Bamford M, Chang M, Cheng J, Hedley C, Joseph R, Mitchell B, Perera S, Rothwell L, Siddiqui A, Smith J, Taylor K, Wright OW, Baryan HK, Boyd G, Conchie H, Cox L, Davies J, Gardner S, Hill N, Krishna K, Lakin F, Scotcher S, Alberts J, Asad M, Barraclough J, Campbell A, Marshall D, Wakeford W, Cronbach P, D'Souza F, Gammeri E, Houlton J, Hall M, Kethees A, Patel R, Perera M, Prowle J, Shaid M, Webb E, Beattie S, Chadwick M, El-Taji O, Haddad S, Mann M, Patel M, Popat K, Rimmer L, Riyat H, Smith H, Anandarajah C, Cipparrone M, Desai K, Gao C, Goh ET, Howlader M, Jeffreys N, Karmarkar A, Mathew G, Mukhtar H, Ozcan E, Renukanthan A, Sarens N, Sinha C, Woolley A, Bogle R, Komolafe O, Loo F, Waugh D, Zeng R, Crewe A, Mathias J, Mills A, Owen A, Prior A, Saunders I, Baker A, Crilly L, McKeon J, Ubhi HK, Adeogun A, Carr R, Davison C, Devalia S, Hayat A, Karsan RB, Osborne C, Scott K, Weegenaar C, Wijeyaratne M, Babatunde F, Barnor-Ahiaku E, Beattie G, Chitsabesan P, Dixon O, Hall N, Ilenkovan N, Mackrell T, Nithianandasivam N, Orr J, Palazzo F, Saad M, Sandland-Taylor L, Sherlock J, Ashdown T, Chandler S, Garsaa T, Lloyd J, Loh SY, Ng S, Perkins C, Powell-Chandler A, Smith F, Underhill R. Perioperative intravenous contrast administration and the incidence of acute kidney injury after major gastrointestinal surgery: prospective, multicentre cohort study. Br J Surg 2020; 107:1023-1032. [PMID: 32026470 DOI: 10.1002/bjs.11453] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/25/2019] [Revised: 09/21/2019] [Accepted: 11/08/2019] [Indexed: 01/14/2023]
Abstract
BACKGROUND This study aimed to determine the impact of preoperative exposure to intravenous contrast for CT and the risk of developing postoperative acute kidney injury (AKI) in patients undergoing major gastrointestinal surgery. METHODS This prospective, multicentre cohort study included adults undergoing gastrointestinal resection, stoma reversal or liver resection. Both elective and emergency procedures were included. Preoperative exposure to intravenous contrast was defined as exposure to contrast administered for the purposes of CT up to 7 days before surgery. The primary endpoint was the rate of AKI within 7 days. Propensity score-matched models were adjusted for patient, disease and operative variables. In a sensitivity analysis, a propensity score-matched model explored the association between preoperative exposure to contrast and AKI in the first 48 h after surgery. RESULTS A total of 5378 patients were included across 173 centres. Overall, 1249 patients (23·2 per cent) received intravenous contrast. The overall rate of AKI within 7 days of surgery was 13·4 per cent (718 of 5378). In the propensity score-matched model, preoperative exposure to contrast was not associated with AKI within 7 days (odds ratio (OR) 0·95, 95 per cent c.i. 0·73 to 1·21; P = 0·669). The sensitivity analysis showed no association between preoperative contrast administration and AKI within 48 h after operation (OR 1·09, 0·84 to 1·41; P = 0·498). CONCLUSION There was no association between preoperative intravenous contrast administered for CT up to 7 days before surgery and postoperative AKI. Risk of contrast-induced nephropathy should not be used as a reason to avoid contrast-enhanced CT.
Collapse
|
17
|
Alba A, Foroutan F, Buchan T, Alvarez J, Kinsella A, Clark K, Lau K, Zhu A, McGuinty C, Aleksova N, Vishram-Nielsen J, Malik A, Francis T, Stanimirovic A, Bielecki J, Fan E, Rao V, Ross H, Rac V, Billia F. Mortality in Patients with Cardiogenic Shock Supported with Veno-Arterial Extracorporeal Membrane Oxygenation: A Systematic Review and Meta-Analysis Evaluating the Impact of Etiology. J Heart Lung Transplant 2020. [DOI: 10.1016/j.healun.2020.01.773] [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: 10/24/2022] Open
|
18
|
Antony J, Wee Y, Lau K, Platts D, Scalia G, Habibian M. 327 Echocardiographic Assessment and Supplementary Contrast Enhanced Images of a Left Ventricular Mass. Heart Lung Circ 2020. [DOI: 10.1016/j.hlc.2020.09.334] [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: 11/30/2022]
|
19
|
Tan SY, Lau K, Borsaru A, Jackson D, Nandurkar D. Efficacy of Iodine Perfusion Maps from Dual-energy Computed Tomography of the Pulmonary Arteries in Pulmonary Embolism Assessment. Hong Kong Journal of Radiology 2019. [DOI: 10.12809/hkjr1916942] [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: 11/05/2022] Open
Affiliation(s)
- SY Tan
- Diagnostic Imaging Department, Monash Health, Victoria, Australia
| | - K Lau
- Diagnostic Imaging Department, Monash Health, Victoria, Australia; Faculty of Medicine, Nursing and Health Sciences, Monash University, Australia
| | - A Borsaru
- Diagnostic Imaging Department, Monash Health, Victoria, Australia
| | - D Jackson
- Diagnostic Imaging Department, Monash Health, Victoria, Australia
| | - D Nandurkar
- Diagnostic Imaging Department, Monash Health, Victoria, Australia
| |
Collapse
|
20
|
Sathananthan J, Sellers S, Barlow AM, Stanová V, Fraser R, Toggweiler S, Allen KB, Chhatriwalla A, Murdoch DJ, Hensey M, Lau K, Alkhodair A, Dvir D, Asgar AW, Cheung A, Blanke P, Ye J, Rieu R, Pibarot P, Wood D, Leipsic J, Webb JG. Valve-in-Valve Transcatheter Aortic Valve Replacement and Bioprosthetic Valve Fracture Comparing Different Transcatheter Heart Valve Designs: An Ex Vivo Bench Study. JACC Cardiovasc Interv 2019; 12:65-75. [PMID: 30621980 DOI: 10.1016/j.jcin.2018.10.043] [Citation(s) in RCA: 28] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/06/2018] [Revised: 10/04/2018] [Accepted: 10/23/2018] [Indexed: 11/16/2022]
Abstract
OBJECTIVES The authors assessed the effect of valve-in-valve (VIV) transcatheter aortic valve replacement (TAVR) followed by bioprosthetic valve fracture (BVF), testing different transcatheter heart valve (THV) designs in an ex vivo bench study. BACKGROUND Bioprosthetic valve fracture can be performed to improve residual transvalvular gradients following VIV TAVR. METHODS The authors evaluated VIV TAVR and BVF with the SAPIEN 3 (S3) (Edwards Lifesciences, Irvine, California) and ACURATE neo (Boston Scientific Corporation, Natick, Massachusetts) THVs. A 20-mm and 23-mm S3 were deployed in a 19-mm and 21-mm Mitroflow (Sorin Group USA, Arvada, Colorado), respectively. A small ACURATE neo was deployed in both sizes of Mitroflow tested. VIV TAVR samples underwent multimodality imaging, and hydrodynamic evaluation before and after BVF. RESULTS A high implantation was required to enable full expansion of the upper crown of the ACURATE neo and allow optimal leaflet function. Marked underexpansion of the lower crown of the THV within the surgical valve was also observed. Before BVF, VIV TAVR in the 19-mm Mitroflow had high transvalvular gradients using either THV design (22.0 mm Hg S3, and 19.1 mm Hg ACURATE neo). After BVF, gradients improved and were similar for both THVs (14.2 mm Hg S3, and 13.8 mm Hg ACURATE neo). The effective orifice area increased with BVF from 1.2 to 1.6 cm2 with the S3 and from 1.4 to 1.6 cm2 with the ACURATE neo. Before BVF, VIV TAVR with the ACURATE neo in the 21-mm Mitroflow had lower gradients compared with S3 (11.3 mm Hg vs. 16 mm Hg). However, after BVF valve gradients were similar for both THVs (8.4 mm Hg ACURATE neo vs. 7.8 mm Hg S3). The effective orifice area increased from 1.5 to 2.1 cm2 with the S3 and from 1.8 to 2.2 cm2 with the ACURATE neo. CONCLUSIONS BVF performed after VIV TAVR results in improved residual gradients. Following BVF, residual gradients were similar irrespective of THV design. Use of a small ACURATE neo for VIV TAVR in small (≤21 mm) surgical valves may be associated with challenges in achieving optimum THV position and expansion. BVF could be considered in selected clinical cases.
Collapse
Affiliation(s)
- Janarthanan Sathananthan
- Centre for Heart Valve Innovation, St. Paul's Hospital, University of British Columbia, Vancouver, British Columbia, Canada
| | - Stephanie Sellers
- Centre for Heart Lung Innovation, Vancouver, British Columbia, Canada; Department of Radiology, St. Paul's Hospital and University of British Columbia, Vancouver, British Columbia, Canada
| | - Aaron M Barlow
- Centre for Heart Lung Innovation, Vancouver, British Columbia, Canada
| | | | - Rob Fraser
- ViVitro Labs Inc., Victoria, British Columbia, Canada
| | | | - Keith B Allen
- Saint Luke's Hospital, St. Luke's Mid America Heart Institute, Kansas City, Missouri
| | - Adnan Chhatriwalla
- Saint Luke's Hospital, St. Luke's Mid America Heart Institute, Kansas City, Missouri
| | - Dale J Murdoch
- Centre for Heart Valve Innovation, St. Paul's Hospital, University of British Columbia, Vancouver, British Columbia, Canada; University of Queensland, Brisbane, Australia
| | - Mark Hensey
- Centre for Heart Valve Innovation, St. Paul's Hospital, University of British Columbia, Vancouver, British Columbia, Canada
| | - Karen Lau
- Centre for Heart Lung Innovation, Vancouver, British Columbia, Canada; Department of Radiology, St. Paul's Hospital and University of British Columbia, Vancouver, British Columbia, Canada
| | - Abdullah Alkhodair
- Centre for Heart Valve Innovation, St. Paul's Hospital, University of British Columbia, Vancouver, British Columbia, Canada
| | - Danny Dvir
- University of Washington, Seattle, Washington
| | | | - Anson Cheung
- Centre for Heart Valve Innovation, St. Paul's Hospital, University of British Columbia, Vancouver, British Columbia, Canada
| | - Philipp Blanke
- Centre for Heart Valve Innovation, St. Paul's Hospital, University of British Columbia, Vancouver, British Columbia, Canada; Department of Radiology, St. Paul's Hospital and University of British Columbia, Vancouver, British Columbia, Canada
| | - Jian Ye
- Centre for Heart Valve Innovation, St. Paul's Hospital, University of British Columbia, Vancouver, British Columbia, Canada
| | - Régis Rieu
- Aix-Marseille Univ, IFSTTAR, LBA UMR_T24, Marseille, France
| | | | - David Wood
- Centre for Heart Valve Innovation, St. Paul's Hospital, University of British Columbia, Vancouver, British Columbia, Canada
| | - Jonathan Leipsic
- Centre for Heart Valve Innovation, St. Paul's Hospital, University of British Columbia, Vancouver, British Columbia, Canada; Department of Radiology, St. Paul's Hospital and University of British Columbia, Vancouver, British Columbia, Canada
| | - John G Webb
- Centre for Heart Valve Innovation, St. Paul's Hospital, University of British Columbia, Vancouver, British Columbia, Canada.
| |
Collapse
|
21
|
Abstract
Abstract
Background
Neonatal encephalopathy due to birth asphyxia and trauma is a leading cause of premature death and long-term disability as estimated by the Global Burden of Disease (GBD) 2017 study. To evaluate comparative improvements in prevention and survival, this analysis evaluated GBD 2017 mortality to incidence (MI) ratios as a proxy for case fatality over time, location, and socio-demographic status.
Methods
We derived estimates of cause-specific mortality and incidence at birth from GBD 2017, calculating MI ratios of neonatal encephalopathy in children <1 year. We analyzed temporal, geographic, and socio-demographic trends in incidence, mortality, and MI ratio.
Results
Neonatal encephalopathy incidence shows little change over time, with global incidence in children under one essentially the same in 2017 (1,996 cases per 100,000 (1,334-2,912)) and 1990 (1,996 cases per 100,000 (1,331-2,926)). Regions show the same trend, though a large difference exists between the highest and lowest regional incidence, with incidence in Central Sub-Saharan Africa over 20 times higher than in Australasia. Over the same period, MI ratios for neonatal encephalopathy have decreased across all regions. Model input data represented 52 countries for prevalence and 145 countries for mortality, with notable data sparsity in Africa and Eastern Europe.
Conclusions
Case fatality of neonatal encephalopathy, as approximated by MI ratio, has declined worldwide over the past three decades, but incidence has shown little change. This suggests treatment of neonatal encephalopathy has improved, but more research is needed on risk factors in order to increase prevention. Continued work is also needed to reduce disparities in incidence and mortality between countries with different levels of SDI. Improving data coverage in lower SDI regions will be critical to accurately monitor progress toward reducing inequity.
Key messages
Neonatal encephalopathy is a leading cause of premature death and disability. Incidence of neonatal encephalopathy has changed little since 1990, indicating more work is needed on prevention. Case fatality of neonatal encephalopathy can be approximated by the mortality to incidence ratio, and has declined worldwide over the past three decades, suggesting improvements in treatment.
Collapse
Affiliation(s)
- K Lau
- Department of Global Health, University of Washington, Seattle, USA
| |
Collapse
|
22
|
Nordbeck P, Liu D, Hu K, Lau K, Kiwitz T, Robitzkat K, Hammel C, Ertl G, Frantz S. P3545Association between diastolic dysfunction and two-year survival in heart failure patients with mid-range or reduced left ventricular ejection fraction. Eur Heart J 2019. [DOI: 10.1093/eurheartj/ehz745.0408] [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
Background
Extensive studies have demonstrated prognostic impact of echocardiographic defined diastolic dysfunction (DD) in patients with preserved as well as reduced left ventricular ejection fraction (LVEF). Nevertheless, it remains controversial whether evaluation of DD could provide additional prognostic information in heart failure (HF) patients with impaired systolic function. The purpose of present study, therefore, is to investigate the prognostic impact of echocardiography-defined DD on survival in HF patients hospitalized in our centre from 2009 to 2017 with mid-range LVEF (HFmrEF, LVEF 41–49%) and reduced LVEF (HFrEF, LVEF<40%).
Methods
A total of 2018 patients with echocardiography-evidenced LVEF<50% and hospitalized in our centre between July 2009 to December 2017 were included. Baseline demographic and clinical data were obtained by reviewing the medical records. All patients subsequently completed a median clinical follow-up of 24 (IQR 13–36) months by medical record review or telephone interview. The primary endpoint was all-cause mortality or heart transplantation (HTx). Patients were divided into mild, moderate and severe DD according to recent guidelines.
Results
The mean age was 69±13 years in the HFmrEF group and 68±13 years in the HFrEF group. All-cause mortality/HTx rate was significantly higher in the HFrEF (all-cause death n=318 and HTx n=11, 30.9%) group than in patients with HFmrEF (all-cause death n=235 and HTx n=2, 24.9%, P=0.003). All-cause mortality/HTx rate increased in proportion to DD severity in HFmrEF patients: 17.1% (54/315) in the mild DD group, 25.4% (115/452) in the moderate DD group, and 37.0% (68/184) in the severe DD group (P<0.001) and in HFrEF patients: 18.9% (43/228) in the mild DD group, 30.3% (146/482) in the moderate DD group, and 39.2% (140/357) in the severe DD group (P<0.001). Multivariable Cox regression analysis showed that Doppler parameter early-diastolic mitral inflow velocity to septal mitral annular velocity ratio (E/E') >14 (HR 1.41, 95% CI 1.06–1.89, P=0.020) and peak tricuspid regurgitation velocity (TRVmax) >2.8m/s (HR 1.75, 95% CI 1.33–2.29, P<0.001) were independent determinants of all-cause mortality/HTx in patients with HFmrEF; while E/E'>14 (HR 1.48, 95% CI 1.08–2.04, P=0.015) remained as an independent determinant of all-cause mortality/HTx in patients with HFrEF after adjustment for clinical and other echocardiographic confounders. Besides DD-related parameters, after adjustment with age and sex, lower tricuspid and mitral annular plane systolic excursions (TAPSE and MAPSE) were also closely related to higher mortality/HTx rate in both HFmrEF and HFrEF patients.
Figure 1. Kaplan-Meier curves
Conclusion
Our results indicate that all-cause mortality/HTx rate increases in proportion to DD severity in both HFmrEF and HFrEF patients.
Collapse
Affiliation(s)
- P Nordbeck
- University of Wuerzburg, Department of Internal Medicine I, Comprehensive Heart Failure Center, Wuerzburg, Germany
| | - D Liu
- University of Wuerzburg, Department of Internal Medicine I, Comprehensive Heart Failure Center, Wuerzburg, Germany
| | - K Hu
- University of Wuerzburg, Department of Internal Medicine I, Comprehensive Heart Failure Center, Wuerzburg, Germany
| | - K Lau
- University of Wuerzburg, Department of Internal Medicine I, Comprehensive Heart Failure Center, Wuerzburg, Germany
| | - T Kiwitz
- University of Wuerzburg, Department of Internal Medicine I, Comprehensive Heart Failure Center, Wuerzburg, Germany
| | - K Robitzkat
- University of Wuerzburg, Department of Internal Medicine I, Comprehensive Heart Failure Center, Wuerzburg, Germany
| | - C Hammel
- University of Wuerzburg, Department of Internal Medicine I, Comprehensive Heart Failure Center, Wuerzburg, Germany
| | - G Ertl
- University of Wuerzburg, Department of Internal Medicine I, Comprehensive Heart Failure Center, Wuerzburg, Germany
| | - S Frantz
- University of Wuerzburg, Department of Internal Medicine I, Comprehensive Heart Failure Center, Wuerzburg, Germany
| |
Collapse
|
23
|
Buchan T, Ching C, Malik A, Lu Y, Lau K, Foroutan F, Liu H, O'Brien K, Stein M, Rigobon A, Chang D, Vargas JD, Ng N, Borgo A, Siemieniuk R, Sekercioglu N, Evaniew N, Ross H, Alba A. NATRIURETIC PEPTIDES AS PREDICTORS OF MORTALITY IN ADULT AMBULATORY HEART FAILURE PATIENTS: A SYSTEMATIC REVIEW AND META-ANALYSIS. Can J Cardiol 2019. [DOI: 10.1016/j.cjca.2019.07.431] [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: 10/25/2022] Open
|
24
|
Selvaraj A, Lau K, Sotiropoulos G, Dhanji A, Waller D. P1.18-19 Invasive Mediastinal Staging Is Mandatory for Upfront Surgery for N2 Disease. J Thorac Oncol 2019. [DOI: 10.1016/j.jtho.2019.08.1335] [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: 11/27/2022]
|
25
|
Lau K, Malik A, Foroutan F, Ching C, Lu Y, Buchan T, Liu H, Kim H, Qiao A, Tan C, Leda M, Wang J, O'Brien K, Stein M, Elmslie C, Rigobon A, Chang D, Vargas JD, Ng N, Borgo A, Siemieniuk R, Sekercioglu N, Evaniew N, Ross H, Alba A. RESTING HEART RATE AS A PREDICTOR OF MORTALITY IN PATIENTS WITH HEART FAILURE. Can J Cardiol 2019. [DOI: 10.1016/j.cjca.2019.07.467] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022] Open
|
26
|
Lau K, Flandes J, Christensen M, Bezzi M, Lamprecht B, Salio M, Vergnon J, Studnicka M, Trigiani M, Fernandez I, Kropfmüller R, Barisione E, Viby NE, Khandhar S, Folch E. Electromagnetic navigation bronchoscopy in the European cohort of the prospective, multicenter NAVIGATE study. Ann Oncol 2019. [DOI: 10.1093/annonc/mdz064] [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: 11/14/2022] Open
|
27
|
Parker H, Donges C, Gifford J, Lau K, Greenfield E, Steinbeck K, O’Connor H. Recruiting young women with obesity to weight management trials: Barriers and enablers. Obes Res Clin Pract 2019. [DOI: 10.1016/j.orcp.2016.10.261] [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: 11/28/2022]
|
28
|
Ade PAR, Ahmed Z, Aikin RW, Alexander KD, Barkats D, Benton SJ, Bischoff CA, Bock JJ, Bowens-Rubin R, Brevik JA, Buder I, Bullock E, Buza V, Connors J, Cornelison J, Crill BP, Crumrine M, Dierickx M, Duband L, Dvorkin C, Filippini JP, Fliescher S, Grayson J, Hall G, Halpern M, Harrison S, Hildebrandt SR, Hilton GC, Hui H, Irwin KD, Kang J, Karkare KS, Karpel E, Kaufman JP, Keating BG, Kefeli S, Kernasovskiy SA, Kovac JM, Kuo CL, Larsen NA, Lau K, Leitch EM, Lueker M, Megerian KG, Moncelsi L, Namikawa T, Netterfield CB, Nguyen HT, O'Brient R, Ogburn RW, Palladino S, Pryke C, Racine B, Richter S, Schillaci A, Schwarz R, Sheehy CD, Soliman A, St Germaine T, Staniszewski ZK, Steinbach B, Sudiwala RV, Teply GP, Thompson KL, Tolan JE, Tucker C, Turner AD, Umiltà C, Vieregg AG, Wandui A, Weber AC, Wiebe DV, Willmert J, Wong CL, Wu WLK, Yang H, Yoon KW, Zhang C. Constraints on Primordial Gravitational Waves Using Planck, WMAP, and New BICEP2/Keck Observations through the 2015 Season. Phys Rev Lett 2018; 121:221301. [PMID: 30547645 DOI: 10.1103/physrevlett.121.221301] [Citation(s) in RCA: 28] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/02/2018] [Revised: 08/28/2018] [Indexed: 06/09/2023]
Abstract
We present results from an analysis of all data taken by the bicep2/Keck CMB polarization experiments up to and including the 2015 observing season. This includes the first Keck Array observations at 220 GHz and additional observations at 95 and 150 GHz. The Q and U maps reach depths of 5.2, 2.9, and 26 μK_{CMB} arcmin at 95, 150, and 220 GHz, respectively, over an effective area of ≈400 square degrees. The 220 GHz maps achieve a signal to noise on polarized dust emission approximately equal to that of Planck at 353 GHz. We take auto and cross spectra between these maps and publicly available WMAP and Planck maps at frequencies from 23 to 353 GHz. We evaluate the joint likelihood of the spectra versus a multicomponent model of lensed-ΛCDM+r+dust+synchrotron+noise. The foreground model has seven parameters, and we impose priors on some of these using external information from Planck and WMAP derived from larger regions of sky. The model is shown to be an adequate description of the data at the current noise levels. The likelihood analysis yields the constraint r_{0.05}<0.07 at 95% confidence, which tightens to r_{0.05}<0.06 in conjunction with Planck temperature measurements and other data. The lensing signal is detected at 8.8σ significance. Running a maximum likelihood search on simulations we obtain unbiased results and find that σ(r)=0.020. These are the strongest constraints to date on primordial gravitational waves.
Collapse
Affiliation(s)
- P A R Ade
- School of Physics and Astronomy, Cardiff University, Cardiff, CF24 3AA, United Kingdom
| | - Z Ahmed
- Kavli Institute for Particle Astrophysics and Cosmology, SLAC National Accelerator Laboratory, 2575 Sand Hill Rd, Menlo Park, California 94025, USA
| | - R W Aikin
- Department of Physics, California Institute of Technology, Pasadena, California 91125, USA
| | - K D Alexander
- Harvard-Smithsonian Center for Astrophysics, 60 Garden Street MS 42, Cambridge, Massachusetts 02138, USA
| | - D Barkats
- Harvard-Smithsonian Center for Astrophysics, 60 Garden Street MS 42, Cambridge, Massachusetts 02138, USA
| | - S J Benton
- Department of Physics, Princeton University, Princeton, New Jersey 08544, USA
| | - C A Bischoff
- Department of Physics, University of Cincinnati, Cincinnati, Ohio 45221, USA
| | - J J Bock
- Department of Physics, California Institute of Technology, Pasadena, California 91125, USA
- Jet Propulsion Laboratory, Pasadena, California 91109, USA
| | - R Bowens-Rubin
- Harvard-Smithsonian Center for Astrophysics, 60 Garden Street MS 42, Cambridge, Massachusetts 02138, USA
| | - J A Brevik
- Department of Physics, California Institute of Technology, Pasadena, California 91125, USA
| | - I Buder
- Harvard-Smithsonian Center for Astrophysics, 60 Garden Street MS 42, Cambridge, Massachusetts 02138, USA
| | - E Bullock
- Minnesota Institute for Astrophysics, University of Minnesota, Minneapolis, Minnesota 55455, USA
| | - V Buza
- Harvard-Smithsonian Center for Astrophysics, 60 Garden Street MS 42, Cambridge, Massachusetts 02138, USA
- Department of Physics, Harvard University, Cambridge, Massachusetts 02138, USA
| | - J Connors
- Harvard-Smithsonian Center for Astrophysics, 60 Garden Street MS 42, Cambridge, Massachusetts 02138, USA
| | - J Cornelison
- Harvard-Smithsonian Center for Astrophysics, 60 Garden Street MS 42, Cambridge, Massachusetts 02138, USA
| | - B P Crill
- Jet Propulsion Laboratory, Pasadena, California 91109, USA
| | - M Crumrine
- School of Physics and Astronomy, University of Minnesota, Minneapolis, Minnesota 55455, USA
| | - M Dierickx
- Harvard-Smithsonian Center for Astrophysics, 60 Garden Street MS 42, Cambridge, Massachusetts 02138, USA
| | - L Duband
- Service des Basses Températures, Commissariat à l'Energie Atomique, 38054 Grenoble, France
| | - C Dvorkin
- Department of Physics, Harvard University, Cambridge, Massachusetts 02138, USA
| | - J P Filippini
- Department of Physics, University of Illinois at Urbana-Champaign, Urbana, Illinois 61801, USA
- Department of Astronomy, University of Illinois at Urbana-Champaign, Urbana, Illinois 61801, USA
| | - S Fliescher
- School of Physics and Astronomy, University of Minnesota, Minneapolis, Minnesota 55455, USA
| | - J Grayson
- Department of Physics, Stanford University, Stanford, California 94305, USA
| | - G Hall
- School of Physics and Astronomy, University of Minnesota, Minneapolis, Minnesota 55455, USA
| | - M Halpern
- Department of Physics and Astronomy, University of British Columbia, Vancouver, British Columbia, V6T 1Z1, Canada
| | - S Harrison
- Harvard-Smithsonian Center for Astrophysics, 60 Garden Street MS 42, Cambridge, Massachusetts 02138, USA
| | - S R Hildebrandt
- Department of Physics, California Institute of Technology, Pasadena, California 91125, USA
- Jet Propulsion Laboratory, Pasadena, California 91109, USA
| | - G C Hilton
- National Institute of Standards and Technology, Boulder, Colorado 80305, USA
| | - H Hui
- Department of Physics, California Institute of Technology, Pasadena, California 91125, USA
| | - K D Irwin
- Kavli Institute for Particle Astrophysics and Cosmology, SLAC National Accelerator Laboratory, 2575 Sand Hill Rd, Menlo Park, California 94025, USA
- Department of Physics, Stanford University, Stanford, California 94305, USA
- National Institute of Standards and Technology, Boulder, Colorado 80305, USA
| | - J Kang
- Department of Physics, Stanford University, Stanford, California 94305, USA
| | - K S Karkare
- Harvard-Smithsonian Center for Astrophysics, 60 Garden Street MS 42, Cambridge, Massachusetts 02138, USA
- Kavli Institute for Cosmological Physics, University of Chicago, Chicago, Illinois 60637, USA
| | - E Karpel
- Department of Physics, Stanford University, Stanford, California 94305, USA
| | - J P Kaufman
- Department of Physics, University of California at San Diego, La Jolla, California 92093, USA
| | - B G Keating
- Department of Physics, University of California at San Diego, La Jolla, California 92093, USA
| | - S Kefeli
- Department of Physics, California Institute of Technology, Pasadena, California 91125, USA
| | - S A Kernasovskiy
- Department of Physics, Stanford University, Stanford, California 94305, USA
| | - J M Kovac
- Harvard-Smithsonian Center for Astrophysics, 60 Garden Street MS 42, Cambridge, Massachusetts 02138, USA
- Department of Physics, Harvard University, Cambridge, Massachusetts 02138, USA
| | - C L Kuo
- Kavli Institute for Particle Astrophysics and Cosmology, SLAC National Accelerator Laboratory, 2575 Sand Hill Rd, Menlo Park, California 94025, USA
- Department of Physics, Stanford University, Stanford, California 94305, USA
| | - N A Larsen
- Kavli Institute for Cosmological Physics, University of Chicago, Chicago, Illinois 60637, USA
| | - K Lau
- School of Physics and Astronomy, University of Minnesota, Minneapolis, Minnesota 55455, USA
| | - E M Leitch
- Kavli Institute for Cosmological Physics, University of Chicago, Chicago, Illinois 60637, USA
| | - M Lueker
- Department of Physics, California Institute of Technology, Pasadena, California 91125, USA
| | - K G Megerian
- Jet Propulsion Laboratory, Pasadena, California 91109, USA
| | - L Moncelsi
- Department of Physics, California Institute of Technology, Pasadena, California 91125, USA
| | - T Namikawa
- Leung Center for Cosmology and Particle Astrophysics, National Taiwan University, Taipei 10617, Taiwan
| | - C B Netterfield
- Department of Physics, University of Toronto, Toronto, Ontario, M5S 1A7, Canada
- Canadian Institute for Advanced Research, Toronto, Ontario, M5G 1Z8, Canada
| | - H T Nguyen
- Jet Propulsion Laboratory, Pasadena, California 91109, USA
| | - R O'Brient
- Department of Physics, California Institute of Technology, Pasadena, California 91125, USA
- Jet Propulsion Laboratory, Pasadena, California 91109, USA
| | - R W Ogburn
- Kavli Institute for Particle Astrophysics and Cosmology, SLAC National Accelerator Laboratory, 2575 Sand Hill Rd, Menlo Park, California 94025, USA
- Department of Physics, Stanford University, Stanford, California 94305, USA
| | - S Palladino
- Department of Physics, University of Cincinnati, Cincinnati, Ohio 45221, USA
| | - C Pryke
- Minnesota Institute for Astrophysics, University of Minnesota, Minneapolis, Minnesota 55455, USA
- School of Physics and Astronomy, University of Minnesota, Minneapolis, Minnesota 55455, USA
| | - B Racine
- Harvard-Smithsonian Center for Astrophysics, 60 Garden Street MS 42, Cambridge, Massachusetts 02138, USA
| | - S Richter
- Harvard-Smithsonian Center for Astrophysics, 60 Garden Street MS 42, Cambridge, Massachusetts 02138, USA
| | - A Schillaci
- Department of Physics, California Institute of Technology, Pasadena, California 91125, USA
| | - R Schwarz
- School of Physics and Astronomy, University of Minnesota, Minneapolis, Minnesota 55455, USA
| | - C D Sheehy
- Physics Department, Brookhaven National Laboratory, Upton, New York 11973, USA
| | - A Soliman
- Department of Physics, California Institute of Technology, Pasadena, California 91125, USA
| | - T St Germaine
- Harvard-Smithsonian Center for Astrophysics, 60 Garden Street MS 42, Cambridge, Massachusetts 02138, USA
| | - Z K Staniszewski
- Department of Physics, California Institute of Technology, Pasadena, California 91125, USA
- Jet Propulsion Laboratory, Pasadena, California 91109, USA
| | - B Steinbach
- Department of Physics, California Institute of Technology, Pasadena, California 91125, USA
| | - R V Sudiwala
- School of Physics and Astronomy, Cardiff University, Cardiff, CF24 3AA, United Kingdom
| | - G P Teply
- Department of Physics, California Institute of Technology, Pasadena, California 91125, USA
- Department of Physics, University of California at San Diego, La Jolla, California 92093, USA
| | - K L Thompson
- Kavli Institute for Particle Astrophysics and Cosmology, SLAC National Accelerator Laboratory, 2575 Sand Hill Rd, Menlo Park, California 94025, USA
- Department of Physics, Stanford University, Stanford, California 94305, USA
| | - J E Tolan
- Department of Physics, Stanford University, Stanford, California 94305, USA
| | - C Tucker
- School of Physics and Astronomy, Cardiff University, Cardiff, CF24 3AA, United Kingdom
| | - A D Turner
- Jet Propulsion Laboratory, Pasadena, California 91109, USA
| | - C Umiltà
- Department of Physics, University of Cincinnati, Cincinnati, Ohio 45221, USA
| | - A G Vieregg
- Kavli Institute for Cosmological Physics, University of Chicago, Chicago, Illinois 60637, USA
- Department of Physics, Enrico Fermi Institute, University of Chicago, Chicago, Illinois 60637, USA
| | - A Wandui
- Department of Physics, California Institute of Technology, Pasadena, California 91125, USA
| | - A C Weber
- Jet Propulsion Laboratory, Pasadena, California 91109, USA
| | - D V Wiebe
- Department of Physics and Astronomy, University of British Columbia, Vancouver, British Columbia, V6T 1Z1, Canada
| | - J Willmert
- School of Physics and Astronomy, University of Minnesota, Minneapolis, Minnesota 55455, USA
| | - C L Wong
- Harvard-Smithsonian Center for Astrophysics, 60 Garden Street MS 42, Cambridge, Massachusetts 02138, USA
- Department of Physics, Harvard University, Cambridge, Massachusetts 02138, USA
| | - W L K Wu
- Kavli Institute for Cosmological Physics, University of Chicago, Chicago, Illinois 60637, USA
| | - H Yang
- Department of Physics, Stanford University, Stanford, California 94305, USA
| | - K W Yoon
- Kavli Institute for Particle Astrophysics and Cosmology, SLAC National Accelerator Laboratory, 2575 Sand Hill Rd, Menlo Park, California 94025, USA
- Department of Physics, Stanford University, Stanford, California 94305, USA
| | - C Zhang
- Department of Physics, California Institute of Technology, Pasadena, California 91125, USA
| |
Collapse
|
29
|
Buderi S, Hargrave J, Di Martino M, Lau K, Waller D. P2.06-03 Can We Predict Pathological Nodal Positivity in Malignant Pleural Mesothelioma from Preoperative Clinical Variables? J Thorac Oncol 2018. [DOI: 10.1016/j.jtho.2018.08.1258] [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: 11/28/2022]
|
30
|
Liu D, Hu K, Lau K, Hammel C, Salinger T, Herrmann S, Ertl G, Frantz S, Stoerk S, Nordbeck P. 2455Predictive value of diastolic dysfunction severity on long-term survival in heart failure patients with mid-range or reduced left ventricular ejection fraction. Eur Heart J 2018. [DOI: 10.1093/eurheartj/ehy565.2455] [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: 11/13/2022] Open
Affiliation(s)
- D Liu
- Comprehensive Heart Failure Center Wuerzburg, University Hospital Wuerzburg, Department of Internal Medicine I, Wuerzburg, Germany
| | - K Hu
- Comprehensive Heart Failure Center Wuerzburg, University Hospital Wuerzburg, Department of Internal Medicine I, Wuerzburg, Germany
| | - K Lau
- Comprehensive Heart Failure Center Wuerzburg, University Hospital Wuerzburg, Department of Internal Medicine I, Wuerzburg, Germany
| | - C Hammel
- Comprehensive Heart Failure Center Wuerzburg, University Hospital Wuerzburg, Department of Internal Medicine I, Wuerzburg, Germany
| | - T Salinger
- Comprehensive Heart Failure Center Wuerzburg, University Hospital Wuerzburg, Department of Internal Medicine I, Wuerzburg, Germany
| | - S Herrmann
- Comprehensive Heart Failure Center Wuerzburg, University Hospital Wuerzburg, Department of Internal Medicine I, Wuerzburg, Germany
| | - G Ertl
- Comprehensive Heart Failure Center Wuerzburg, University Hospital Wuerzburg, Department of Internal Medicine I, Wuerzburg, Germany
| | - S Frantz
- Comprehensive Heart Failure Center Wuerzburg, University Hospital Wuerzburg, Department of Internal Medicine I, Wuerzburg, Germany
| | - S Stoerk
- Comprehensive Heart Failure Center Wuerzburg, University Hospital Wuerzburg, Department of Internal Medicine I, Wuerzburg, Germany
| | - P Nordbeck
- Comprehensive Heart Failure Center Wuerzburg, University Hospital Wuerzburg, Department of Internal Medicine I, Wuerzburg, Germany
| |
Collapse
|
31
|
Abstract
OBJECTIVE Following the announcement of the NHS Cancer Plan in 2000, anyone suspected of having cancer has to be seen by a specialist within 2 weeks of referral. Since this introduction, studies have shown that only 6.3%-14.6% of 2-week referrals were diagnosed with a head and neck cancer and that majority of the cancer diagnoses were via other referral routes. These studies suggest that the referral scheme is not currently cost-effective. Our aim is to develop a scoring system that determines the risk of head and neck cancer in a patient, which can then be used to aid GP referrals. DESIGN Retrospective data were collected from 1075 patients with 2-week head and neck cancer referrals from general practitioners. The retrospective data collected included patients' demographics, risk factors and relevant investigations. The data were used as input into a logistic regression to arrive at our model. Our approach included data analysis, machine learning techniques, statistical inference and model validation metrics to arrive at the best performing model. The model was then tested with more data from 235 prospective patients. RESULTS Using our results from the logistic regression, we created a web-based tool that GPs can use to calculate their patient's probability of cancer and use this result to assist in their decision regarding referral. Our prototype can be seen in Figure 2. CONCLUSION We have created a prototype scoring system that can be hosted online to assist GPs with their referrals with a sensitivity of 31% and specificity of 92%. While we acknowledge that there are several limitations to our model, we believe we have created a novel preliminary scoring system that has the potential to be improved dramatically with further data and be very helpful for GPs in a long run.
Collapse
Affiliation(s)
- K Lau
- Wexham Park Hospital, Slough, UK
| | | | | |
Collapse
|
32
|
An F, Balantekin A, Band H, Bishai M, Blyth S, Cao D, Cao G, Cao J, Chan Y, Chang J, Chang Y, Chen H, Chen S, Chen Y, Chen Y, Cheng J, Cheng Z, Cherwinka J, Chu M, Chukanov A, Cummings J, Ding Y, Diwan M, Dolgareva M, Dove J, Dwyer D, Edwards W, Gill R, Gonchar M, Gong G, Gong H, Grassi M, Gu W, Guo L, Guo X, Guo Y, Guo Z, Hackenburg R, Hans S, He M, Heeger K, Heng Y, Higuera A, Hsiung Y, Hu B, Hu T, Huang H, Huang X, Huang Y, Huber P, Huo W, Hussain G, Jaffe D, Jen K, Ji X, Ji X, Jiao J, Johnson R, Jones D, Kang L, Kettell S, Khan A, Koerner L, Kohn S, Kramer M, Kwok M, Langford T, Lau K, Lebanowski L, Lee J, Lee J, Lei R, Leitner R, Leung J, Li C, Li D, Li F, Li G, Li Q, Li S, Li S, Li W, Li X, Li X, Li Y, Li Z, Liang H, Lin C, Lin G, Lin S, Lin S, Lin YC, Ling J, Link J, Littenberg L, Littlejohn B, Liu J, Liu J, Loh C, Lu C, Lu H, Lu J, Luk K, Ma X, Ma X, Ma Y, Malyshkin Y, Martinez Caicedo D, McDonald K, McKeown R, Mitchell I, Nakajima Y, Napolitano J, Naumov D, Naumova E, Ochoa-Ricoux J, Olshevskiy A, Pan HR, Park J, Patton S, Pec V, Peng J, Pinsky L, Pun C, Qi F, Qi M, Qian X, Qiu R, Raper N, Ren J, Rosero R, Roskovec B, Ruan X, Steiner H, Sun J, Tang W, Taychenachev D, Treskov K, Tsang K, Tse WH, Tull C, Viaux N, Viren B, Vorobel V, Wang C, Wang M, Wang N, Wang R, Wang W, Wang X, Wang Y, Wang Z, Wang Z, Wang Z, Wei H, Wen L, Whisnant K, White C, Wise T, Wong H, Wong S, Worcester E, Wu CH, Wu Q, Wu W, Xia D, Xia J, Xing Z, Xu J, Xu Y, Xue T, Yang C, Yang H, Yang L, Yang M, Yang M, Yang Y, Ye M, Ye Z, Yeh M, Young B, Yu Z, Zeng S, Zhan L, Zhang C, Zhang C, Zhang H, Zhang J, Zhang Q, Zhang R, Zhang X, Zhang Y, Zhang Y, Zhang Y, Zhang Z, Zhang Z, Zhang Z, Zhao J, Zhou L, Zhuang H, Zou J. Cosmogenic neutron production at Daya Bay. Int J Clin Exp Med 2018. [DOI: 10.1103/physrevd.97.052009] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
|
33
|
Isabelle M, Dorney J, Lewis A, Lloyd GR, Old O, Shepherd N, Rodriguez-Justo M, Barr H, Lau K, Bell I, Ohrel S, Thomas G, Stone N, Kendall C. Multi-centre Raman spectral mapping of oesophageal cancer tissues: a study to assess system transferability. Faraday Discuss 2018; 187:87-103. [PMID: 27048868 DOI: 10.1039/c5fd00183h] [Citation(s) in RCA: 12] [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] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
The potential for Raman spectroscopy to provide early and improved diagnosis on a wide range of tissue and biopsy samples in situ is well documented. The standard histopathology diagnostic methods of reviewing H&E and/or immunohistochemical (IHC) stained tissue sections provides valuable clinical information, but requires both logistics (review, analysis and interpretation by an expert) and costly processing and reagents. Vibrational spectroscopy offers a complimentary diagnostic tool providing specific and multiplexed information relating to molecular structure and composition, but is not yet used to a significant extent in a clinical setting. One of the challenges for clinical implementation is that each Raman spectrometer system will have different characteristics and therefore spectra are not readily compatible between systems. This is essential for clinical implementation where classification models are used to compare measured biochemical or tissue spectra against a library training dataset. In this study, we demonstrate the development and validation of a classification model to discriminate between adenocarcinoma (AC) and non-cancerous intraepithelial metaplasia (IM) oesophageal tissue samples, measured on three different Raman instruments across three different locations. Spectra were corrected using system transfer spectral correction algorithms including wavenumber shift (offset) correction, instrument response correction and baseline removal. The results from this study indicate that the combined correction methods do minimize the instrument and sample quality variations within and between the instrument sites. However, more tissue samples of varying pathology states and greater tissue area coverage (per sample) are needed to properly assess the ability of Raman spectroscopy and system transferability algorithms over multiple instrument sites.
Collapse
Affiliation(s)
- M Isabelle
- Biophotonics Research Unit and Pathology Department, Gloucestershire Hospitals NHS Foundation Trust, Gloucester, UK.
| | - J Dorney
- Biomedical Spectroscopy, School of Physics, University of Exeter, UK
| | - A Lewis
- Department of Cell and Developmental Biology, University College London, London, UK
| | - G R Lloyd
- Biophotonics Research Unit and Pathology Department, Gloucestershire Hospitals NHS Foundation Trust, Gloucester, UK.
| | - O Old
- Biophotonics Research Unit and Pathology Department, Gloucestershire Hospitals NHS Foundation Trust, Gloucester, UK.
| | - N Shepherd
- Biophotonics Research Unit and Pathology Department, Gloucestershire Hospitals NHS Foundation Trust, Gloucester, UK.
| | - M Rodriguez-Justo
- Department of Cell and Developmental Biology, University College London, London, UK
| | - H Barr
- Biophotonics Research Unit and Pathology Department, Gloucestershire Hospitals NHS Foundation Trust, Gloucester, UK.
| | - K Lau
- Spectroscopy Products Division, Renishaw plc, Wotton-Under-Edge, Gloucestershire, UK
| | - I Bell
- Spectroscopy Products Division, Renishaw plc, Wotton-Under-Edge, Gloucestershire, UK
| | - S Ohrel
- Spectroscopy Products Division, Renishaw plc, Wotton-Under-Edge, Gloucestershire, UK
| | - G Thomas
- Department of Cell and Developmental Biology, University College London, London, UK
| | - N Stone
- Biomedical Spectroscopy, School of Physics, University of Exeter, UK
| | - C Kendall
- Biophotonics Research Unit and Pathology Department, Gloucestershire Hospitals NHS Foundation Trust, Gloucester, UK.
| |
Collapse
|
34
|
Patel NH, Joshi S, Lau K, Castillo E, Coffin CS. A341 ANALYSIS OF SERUM HEPATITIS B VIRUS RNA LEVELS IN A MULTIETHNIC COHORT OF PREGNANT CHRONIC HEPATITIS B CARRIERS. J Can Assoc Gastroenterol 2018. [DOI: 10.1093/jcag/gwy009.341] [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)
- N H Patel
- University of Calgary, Calgary, AB, Canada
| | - S Joshi
- University of Calgary, Calgary, AB, Canada
| | - K Lau
- Microbiology, Immunology, and Infectious Diseases, University of Calgary, Calgary, AB, Canada
| | - E Castillo
- University of Calgary, Calgary, AB, Canada
| | - C S Coffin
- Medicine, University of Calgary, Calgary, AB, Canada
| |
Collapse
|
35
|
Lin A, Koitka K, Lau K, Scarlia G, Burstow D, Prabhu A, Thomson B, Tesar P, Bancroft J, Platts D. Longitudinal Evaluation of Inflow Cannula Orientation Following Ventricular-Assist Device Implantation Using Transoesophageal Echocardiography. Heart Lung Circ 2018. [DOI: 10.1016/j.hlc.2018.06.155] [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: 11/16/2022]
|
36
|
Koitka K, Kelly N, Lau K, Lin A, Chan J, Scalia G, Hamilton-Craig C. Does Mid-Diastolic Transmitral Flow (‘L-wave’) Correlate with Raised Left Ventricular End Diastolic Pressure. Heart Lung Circ 2018. [DOI: 10.1016/j.hlc.2018.06.432] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
|
37
|
Rajapakse S, Lau K, Habibian M, Koitka K, Lin A, Burstow D, Hamilton-Craig C, Scalia G, Platts D. Which Factors May Predict Use of Ultrasound Contrast Agents During Transthoracic Echocardiography? Heart Lung Circ 2018. [DOI: 10.1016/j.hlc.2018.06.708] [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: 11/30/2022]
|
38
|
Benjamin A, Lau K, Habibian M, Scalia G, Burstow D, Thomson B, Prabhu A, Tesar P, Bancroft J, Fraser J, Platts D. Assessment of Left Ventricular Apical Morphology Using Contrast-Enhanced Transthoracic Echocardiography Prior to Continuous-Flow Left Ventricular Assist Device Implantation. Heart Lung Circ 2018. [DOI: 10.1016/j.hlc.2018.06.080] [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: 11/28/2022]
|
39
|
Lau K, Bancroft J, McKenzie S, Javorsky G, Chan W, Wong Y, Thomson B, Prabhu A, Fraser J, Platts D. Explant of Heartware Biventricular Assist Devices Following Myocardial Recovery After Peripartum Cardiomyopathy. Heart Lung Circ 2018. [DOI: 10.1016/j.hlc.2018.06.126] [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]
|
40
|
Fetherston E, Lin A, Lau K, Koitka K, Kelly N, Scalia G. Four-Dimensional Echocardiographic Automated Right Ventricular Function Assessment Demonstrates Excellent Correlation with Conventional Two-Dimensional Measures. Heart Lung Circ 2018. [DOI: 10.1016/j.hlc.2018.06.445] [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: 10/28/2022]
|
41
|
Koitka K, Lau K, Habibian M, Lin A, Putrino A, Platts D, Chan J, Walters D, Scalia G. A Percutaneous Solution for Treatment of a Large, Ischaemic Ventricular Septal Defect Presenting with Cardiogenic Shock. Heart Lung Circ 2018. [DOI: 10.1016/j.hlc.2018.06.377] [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: 10/28/2022]
|
42
|
Koitka K, Lau K, Putrino A, Habibian M, Lin A, Platts D, Chan J, Walters D, Scalia G. Percutaneous Transcatheter Edwards S3 Valve-in-Valve Implantation for Severe Prosthetic Mitral Valve Regurgitation. Heart Lung Circ 2018. [DOI: 10.1016/j.hlc.2018.06.488] [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: 11/27/2022]
|
43
|
Lau K, Hamilton-Craig C, Haqqani H, Putrino A, Walters D, Platts D. Coronary Steal Phenomenon and Altered Myocardial Microcirculation Demonstrated by Contrast Enhanced Echocardiography in Apical Hypertrophic Cardiomyopathy Presenting as an Acute Coronary Syndrome. Heart Lung Circ 2018. [DOI: 10.1016/j.hlc.2018.06.104] [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: 12/01/2022]
|
44
|
Wai KM, Wang XM, Lin TH, Wong MS, Zeng SK, He N, Ng E, Lau K, Wang DH. Observational evidence of a long-term increase in precipitation due to urbanization effects and its implications for sustainable urban living. Sci Total Environ 2017; 599-600:647-654. [PMID: 28494289 DOI: 10.1016/j.scitotenv.2017.05.014] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/12/2016] [Revised: 03/27/2017] [Accepted: 05/02/2017] [Indexed: 06/07/2023]
Abstract
Although projected precipitation increases in East Asia due to future climate change have aroused concern, less attention has been paid by the scientific community and public to the potential long-term increase in precipitation due to rapid urbanization. A ten-year precipitation dataset was analysed for both a rapidly urbanized megacity and nearby suburban/rural stations in southern China. Rapid urbanization in the megacity was evident from satellite observations. A statistically significant, long-term, increasing trend of precipitation existed only at the megacity station (45.6mm per decade) and not at the other stations. The increase was attributed to thermal and dynamical modifications of the tropospheric boundary layer related to urbanization, which was confirmed by the results of our WRF-SLUCM simulations. The results also suggested that a long-term regional increase in precipitation, caused by greenhouse gas-induced climate change, for instance, was not evident within the study period. The urbanization-induced increase was found to be higher than the precipitation increase (18.3mm per decade) expected from future climate change. The direct climate impacts due to rapid urbanization is highlighted with strong implications for urban sustainable development and the planning of effective adaptation strategies for issues such as coastal defenses, mosquito-borne disease spread and heat stress mortality.
Collapse
Affiliation(s)
- K M Wai
- Institute of Future Cities, Chinese University of Hong Kong, Hong Kong Special Administrative Region.
| | - X M Wang
- School of Atmospheric Sciences, Sun Yat-sen University, Guangzhou, China.
| | - T H Lin
- Center for Space and Remote Sensing Research, National Central University, Taiwan
| | - M S Wong
- Department of Land Surveying and Geo-informatics, Hong Kong Polytechnic University, Hong Kong Special Administrative Region
| | - S K Zeng
- Graduate Institute of Space Science, National Central University, Taiwan
| | - N He
- Institute of Environment, Energy and Sustainability, Chinese University of Hong Kong, Hong Kong Special Administrative Region
| | - E Ng
- Institute of Future Cities, Chinese University of Hong Kong, Hong Kong Special Administrative Region; Institute of Environment, Energy and Sustainability, Chinese University of Hong Kong, Hong Kong Special Administrative Region; School of Architecture, Chinese University of Hong Kong, Hong Kong Special Administrative Region
| | - K Lau
- School of Architecture, Chinese University of Hong Kong, Hong Kong Special Administrative Region
| | - D H Wang
- School of Atmospheric Sciences, Sun Yat-sen University, Guangzhou, China
| |
Collapse
|
45
|
Szlosarek P, Khadeir R, Sheaff M, Locke M, Lau K, Wu B, Bomalaski J, Martin S, Quezada S. MA 19.05 Pegylated Arginine Deiminase Potentiates PD-1/PD-L1 Immune Checkpoint Blockade in Malignant Mesothelioma. J Thorac Oncol 2017. [DOI: 10.1016/j.jtho.2017.09.637] [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: 10/18/2022]
|
46
|
Tomaszewski‐Farias S, Harvey D, Lau K, Denny KG, Mungas D, DeCarli CS. [P4–387]: USEFULNESS OF SELF‐ AND INFORMANT‐REPORTED FUNCTIONAL ABILITIES IN PREDICTING RISK OF TRANSITIONING FROM NORMAL COGNITION TO MCI. Alzheimers Dement 2017. [DOI: 10.1016/j.jalz.2017.06.2258] [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: 10/18/2022]
Affiliation(s)
| | | | | | | | - Dan Mungas
- University of California, DavisSacramentoCAUSA
| | | |
Collapse
|
47
|
WANG D, Lau K, Yu R, Wong S, Kwok T, Woo J. NEIGHBORING GREEN SPACE AND TRANSITIONS BETWEEN FRAILTY STATES AMONG CHINESE ELDERLY IN HONG KONG. Innov Aging 2017. [DOI: 10.1093/geroni/igx004.1553] [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)
- D. WANG
- CUHK Jockey Club Institute of Ageing, The Chinese University of Hong Kong, Shatin, Hong Kong,
- Jockey Club School of Public Health and Primary Care, Shatin, Hong Kong,
| | - K. Lau
- Institute of Future Cities, The Chinese University of Hong Kong, Shatin, Hong Kong,
- Institute of Environment, Energy and Sustainability, The Chinese University of Hong Kong, Shatin, Hong Kong
| | - R. Yu
- Department of Medicine & Therapeutics, The Chinese University of Hong Kong, Shatin, Hong Kong,
| | - S. Wong
- Jockey Club School of Public Health and Primary Care, Shatin, Hong Kong,
| | - T. Kwok
- Department of Medicine & Therapeutics, The Chinese University of Hong Kong, Shatin, Hong Kong,
| | - J. Woo
- CUHK Jockey Club Institute of Ageing, The Chinese University of Hong Kong, Shatin, Hong Kong,
- Department of Medicine & Therapeutics, The Chinese University of Hong Kong, Shatin, Hong Kong,
| |
Collapse
|
48
|
Mitchell AP, Boggan JC, Lau K, Simel DL. Splenectomy as a Destination: Improving Quality of Care Among Asplenic Veterans Through a Travel Clinic. Am J Med 2017; 130:856-861. [PMID: 28213046 DOI: 10.1016/j.amjmed.2017.01.024] [Citation(s) in RCA: 6] [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] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/04/2016] [Revised: 09/28/2016] [Accepted: 01/24/2017] [Indexed: 11/30/2022]
Abstract
BACKGROUND Asplenic patients are at risk for severe infections, but adherence to recommended preventive education and vaccination is poor. The goal of this study was to demonstrate that a targeted intervention can improve vaccination rates in a population of asplenic veterans. METHODS Surgically asplenic patients actively receiving care in our health care system were identified via a database search. Patients were contacted via mailed letters and encouraged to attend an existing travel clinic with a new process designed for asplenic patients. In the clinic, patients were educated on the risks of asplenia and proper preventive precautions, a vaccination history was taken, and patients were administered any additional indicated vaccines. RESULTS The database search yielded 113 patients; an additional 14 asplenic patients were identified and referred to the clinic by providers, and 2 were referred prior to planned splenectomy. Among all asplenic patients, the first-year referral rate to clinic was 38/129 (29%). During the first year of the intervention, there were increases in the rates of 3 of 4 recommended vaccinations: pneumococcal conjugate, 19% to 55% (P <.001); Haemophilus influenzae type B, 19% to 35% (P = .007); and meningococcal vaccine, 24% to 43% (P = .002). The pneumococcal polysaccharide vaccination rate increased from 91% to 93% (P = .62). CONCLUSIONS Targeted interventions can improve guideline-based care for asplenic patients. The creation of a clinic designed for asplenic patients led to increases in 3 of 4 recommended vaccinations. This strategy may be applicable to other health care systems with similar numbers of asplenic patients.
Collapse
Affiliation(s)
- Aaron P Mitchell
- Department of Medicine, Durham Veterans Affairs Medical Center, NC; Department of Hematology/Oncology, University of North Carolina at Chapel Hill School of Medicine, Chapel Hill, NC; UNC Lineberger Comprehensive Cancer Center, Chapel Hill, NC; Cecil G. Sheps Center for Health Services Research, University of North Carolina at Chapel Hill.
| | - Joel C Boggan
- Department of Medicine, Durham Veterans Affairs Medical Center, NC
| | - Karen Lau
- Department of Medicine, Durham Veterans Affairs Medical Center, NC
| | - David L Simel
- Department of Medicine, Durham Veterans Affairs Medical Center, NC
| |
Collapse
|
49
|
Syed M, McDonald L, Mirza R, Smirle C, Lau K, Relyea E, Austen A, Hitzig S. AN AGE-FRIENDLY PROJECT ON SOCIAL ISOLATION AND LONELINESS: LESSONS FROM TORONTO’S CHINESE COMMUNITY. Innov Aging 2017. [DOI: 10.1093/geroni/igx004.2794] [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)
- M.A. Syed
- University of Toronto, Toronto, Ontario, Canada,
| | - L. McDonald
- University of Toronto, Toronto, Ontario, Canada,
| | - R.M. Mirza
- University of Toronto, Toronto, Ontario, Canada,
| | - C. Smirle
- University of Toronto, Toronto, Ontario, Canada,
| | - K. Lau
- University of Toronto, Toronto, Ontario, Canada,
| | - E. Relyea
- University of Toronto, Toronto, Ontario, Canada,
| | - A. Austen
- City of Toronto, Toronto, Ontario, Canada
| | - S. Hitzig
- Sunnybrook Health Sciences Centre, Toronto, Ontario, Canada,
- University of Toronto, Toronto, Ontario, Canada,
| |
Collapse
|
50
|
An FP, Balantekin AB, Band HR, Bishai M, Blyth S, Cao D, Cao GF, Cao J, Chan YL, Chang JF, Chang Y, Chen HS, Chen QY, Chen SM, Chen YX, Chen Y, Cheng J, Cheng ZK, Cherwinka JJ, Chu MC, Chukanov A, Cummings JP, Ding YY, Diwan MV, Dolgareva M, Dove J, Dwyer DA, Edwards WR, Gill R, Gonchar M, Gong GH, Gong H, Grassi M, Gu WQ, Guo L, Guo XH, Guo YH, Guo Z, Hackenburg RW, Hans S, He M, Heeger KM, Heng YK, Higuera A, Hsiung YB, Hu BZ, Hu T, Huang EC, Huang HX, Huang XT, Huang YB, Huber P, Huo W, Hussain G, Jaffe DE, Jen KL, Ji XP, Ji XL, Jiao JB, Johnson RA, Jones D, Kang L, Kettell SH, Khan A, Kohn S, Kramer M, Kwan KK, Kwok MW, Langford TJ, Lau K, Lebanowski L, Lee J, Lee JHC, Lei RT, Leitner R, Leung JKC, Li C, Li DJ, Li F, Li GS, Li QJ, Li S, Li SC, Li WD, Li XN, Li XQ, Li YF, Li ZB, Liang H, Lin CJ, Lin GL, Lin S, Lin SK, Lin YC, Ling JJ, Link JM, Littenberg L, Littlejohn BR, Liu JL, Liu JC, Loh CW, Lu C, Lu HQ, Lu JS, Luk KB, Ma XY, Ma XB, Ma YQ, Malyshkin Y, Martinez Caicedo DA, McDonald KT, McKeown RD, Mitchell I, Nakajima Y, Napolitano J, Naumov D, Naumova E, Ngai HY, Ochoa-Ricoux JP, Olshevskiy A, Pan HR, Park J, Patton S, Pec V, Peng JC, Pinsky L, Pun CSJ, Qi FZ, Qi M, Qian X, Qiu RM, Raper N, Ren J, Rosero R, Roskovec B, Ruan XC, Steiner H, Stoler P, Sun JL, Tang W, Taychenachev D, Treskov K, Tsang KV, Tull CE, Viaux N, Viren B, Vorobel V, Wang CH, Wang M, Wang NY, Wang RG, Wang W, Wang X, Wang YF, Wang Z, Wang Z, Wang ZM, Wei HY, Wen LJ, Whisnant K, White CG, Whitehead L, Wise T, Wong HLH, Wong SCF, Worcester E, Wu CH, Wu Q, Wu WJ, Xia DM, Xia JK, Xing ZZ, Xu JL, Xu Y, Xue T, Yang CG, Yang H, Yang L, Yang MS, Yang MT, Yang YZ, Ye M, Ye Z, Yeh M, Young BL, Yu ZY, Zeng S, Zhan L, Zhang C, Zhang CC, Zhang HH, Zhang JW, Zhang QM, Zhang R, Zhang XT, Zhang YM, Zhang YX, Zhang YM, Zhang ZJ, Zhang ZY, Zhang ZP, Zhao J, Zhou L, Zhuang HL, Zou JH. Evolution of the Reactor Antineutrino Flux and Spectrum at Daya Bay. Phys Rev Lett 2017; 118:251801. [PMID: 28696753 DOI: 10.1103/physrevlett.118.251801] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/06/2017] [Indexed: 06/07/2023]
Abstract
The Daya Bay experiment has observed correlations between reactor core fuel evolution and changes in the reactor antineutrino flux and energy spectrum. Four antineutrino detectors in two experimental halls were used to identify 2.2 million inverse beta decays (IBDs) over 1230 days spanning multiple fuel cycles for each of six 2.9 GW_{th} reactor cores at the Daya Bay and Ling Ao nuclear power plants. Using detector data spanning effective ^{239}Pu fission fractions F_{239} from 0.25 to 0.35, Daya Bay measures an average IBD yield σ[over ¯]_{f} of (5.90±0.13)×10^{-43} cm^{2}/fission and a fuel-dependent variation in the IBD yield, dσ_{f}/dF_{239}, of (-1.86±0.18)×10^{-43} cm^{2}/fission. This observation rejects the hypothesis of a constant antineutrino flux as a function of the ^{239}Pu fission fraction at 10 standard deviations. The variation in IBD yield is found to be energy dependent, rejecting the hypothesis of a constant antineutrino energy spectrum at 5.1 standard deviations. While measurements of the evolution in the IBD spectrum show general agreement with predictions from recent reactor models, the measured evolution in total IBD yield disagrees with recent predictions at 3.1σ. This discrepancy indicates that an overall deficit in the measured flux with respect to predictions does not result from equal fractional deficits from the primary fission isotopes ^{235}U, ^{239}Pu, ^{238}U, and ^{241}Pu. Based on measured IBD yield variations, yields of (6.17±0.17) and (4.27±0.26)×10^{-43} cm^{2}/fission have been determined for the two dominant fission parent isotopes ^{235}U and ^{239}Pu. A 7.8% discrepancy between the observed and predicted ^{235}U yields suggests that this isotope may be the primary contributor to the reactor antineutrino anomaly.
Collapse
Affiliation(s)
- F P An
- Institute of Modern Physics, East China University of Science and Technology, Shanghai
| | | | - H R Band
- Wright Laboratory and Department of Physics, Yale University, New Haven, Connecticut 06520
| | - M Bishai
- Brookhaven National Laboratory, Upton, New York 11973
| | - S Blyth
- Department of Physics, National Taiwan University, Taipei
- National United University, Miao-Li
| | - D Cao
- Nanjing University, Nanjing
| | - G F Cao
- Institute of High Energy Physics, Beijing
| | - J Cao
- Institute of High Energy Physics, Beijing
| | - Y L Chan
- Chinese University of Hong Kong, Hong Kong
| | - J F Chang
- Institute of High Energy Physics, Beijing
| | - Y Chang
- National United University, Miao-Li
| | - H S Chen
- Institute of High Energy Physics, Beijing
| | | | - S M Chen
- Department of Engineering Physics, Tsinghua University, Beijing
| | - Y X Chen
- North China Electric Power University, Beijing
| | - Y Chen
- Shenzhen University, Shenzhen
| | | | - Z K Cheng
- Sun Yat-Sen (Zhongshan) University, Guangzhou
| | | | - M C Chu
- Chinese University of Hong Kong, Hong Kong
| | - A Chukanov
- Joint Institute for Nuclear Research, Dubna, Moscow Region
| | | | - Y Y Ding
- Institute of High Energy Physics, Beijing
| | - M V Diwan
- Brookhaven National Laboratory, Upton, New York 11973
| | - M Dolgareva
- Joint Institute for Nuclear Research, Dubna, Moscow Region
| | - J Dove
- Department of Physics, University of Illinois at Urbana-Champaign, Urbana, Illinois 61801
| | - D A Dwyer
- Lawrence Berkeley National Laboratory, Berkeley, California 94720
| | - W R Edwards
- Lawrence Berkeley National Laboratory, Berkeley, California 94720
| | - R Gill
- Brookhaven National Laboratory, Upton, New York 11973
| | - M Gonchar
- Joint Institute for Nuclear Research, Dubna, Moscow Region
| | - G H Gong
- Department of Engineering Physics, Tsinghua University, Beijing
| | - H Gong
- Department of Engineering Physics, Tsinghua University, Beijing
| | - M Grassi
- Institute of High Energy Physics, Beijing
| | - W Q Gu
- Department of Physics and Astronomy, Shanghai Jiao Tong University, Shanghai Laboratory for Particle Physics and Cosmology, Shanghai
| | - L Guo
- Department of Engineering Physics, Tsinghua University, Beijing
| | - X H Guo
- Beijing Normal University, Beijing
| | - Y H Guo
- Department of Nuclear Science and Technology, School of Energy and Power Engineering, Xi'an Jiaotong University, Xi'an
| | - Z Guo
- Department of Engineering Physics, Tsinghua University, Beijing
| | | | - S Hans
- Brookhaven National Laboratory, Upton, New York 11973
| | - M He
- Institute of High Energy Physics, Beijing
| | - K M Heeger
- Wright Laboratory and Department of Physics, Yale University, New Haven, Connecticut 06520
| | - Y K Heng
- Institute of High Energy Physics, Beijing
| | - A Higuera
- Department of Physics, University of Houston, Houston, Texas 77204
| | - Y B Hsiung
- Department of Physics, National Taiwan University, Taipei
| | - B Z Hu
- Department of Physics, National Taiwan University, Taipei
| | - T Hu
- Institute of High Energy Physics, Beijing
| | - E C Huang
- Department of Physics, University of Illinois at Urbana-Champaign, Urbana, Illinois 61801
| | - H X Huang
- China Institute of Atomic Energy, Beijing
| | | | - Y B Huang
- Institute of High Energy Physics, Beijing
| | - P Huber
- Center for Neutrino Physics, Virginia Tech, Blacksburg, Virginia 24061
| | - W Huo
- University of Science and Technology of China, Hefei
| | - G Hussain
- Department of Engineering Physics, Tsinghua University, Beijing
| | - D E Jaffe
- Brookhaven National Laboratory, Upton, New York 11973
| | - K L Jen
- Institute of Physics, National Chiao-Tung University, Hsinchu
| | - X P Ji
- Department of Engineering Physics, Tsinghua University, Beijing
- School of Physics, Nankai University, Tianjin
| | - X L Ji
- Institute of High Energy Physics, Beijing
| | | | - R A Johnson
- Department of Physics, University of Cincinnati, Cincinnati, Ohio 45221
| | - D Jones
- Department of Physics, College of Science and Technology, Temple University, Philadelphia, Pennsylvania 19122
| | - L Kang
- Dongguan University of Technology, Dongguan
| | - S H Kettell
- Brookhaven National Laboratory, Upton, New York 11973
| | - A Khan
- Sun Yat-Sen (Zhongshan) University, Guangzhou
| | - S Kohn
- Department of Physics, University of California, Berkeley, California 94720
| | - M Kramer
- Lawrence Berkeley National Laboratory, Berkeley, California 94720
- Department of Physics, University of California, Berkeley, California 94720
| | - K K Kwan
- Chinese University of Hong Kong, Hong Kong
| | - M W Kwok
- Chinese University of Hong Kong, Hong Kong
| | - T J Langford
- Wright Laboratory and Department of Physics, Yale University, New Haven, Connecticut 06520
| | - K Lau
- Department of Physics, University of Houston, Houston, Texas 77204
| | - L Lebanowski
- Department of Engineering Physics, Tsinghua University, Beijing
| | - J Lee
- Lawrence Berkeley National Laboratory, Berkeley, California 94720
| | - J H C Lee
- Department of Physics, The University of Hong Kong, Pokfulam, Hong Kong
| | - R T Lei
- Dongguan University of Technology, Dongguan
| | - R Leitner
- Charles University, Faculty of Mathematics and Physics, Prague
| | - J K C Leung
- Department of Physics, The University of Hong Kong, Pokfulam, Hong Kong
| | - C Li
- Shandong University, Jinan
| | - D J Li
- University of Science and Technology of China, Hefei
| | - F Li
- Institute of High Energy Physics, Beijing
| | - G S Li
- Department of Physics and Astronomy, Shanghai Jiao Tong University, Shanghai Laboratory for Particle Physics and Cosmology, Shanghai
| | - Q J Li
- Institute of High Energy Physics, Beijing
| | - S Li
- Dongguan University of Technology, Dongguan
| | - S C Li
- Center for Neutrino Physics, Virginia Tech, Blacksburg, Virginia 24061
| | - W D Li
- Institute of High Energy Physics, Beijing
| | - X N Li
- Institute of High Energy Physics, Beijing
| | - X Q Li
- School of Physics, Nankai University, Tianjin
| | - Y F Li
- Institute of High Energy Physics, Beijing
| | - Z B Li
- Sun Yat-Sen (Zhongshan) University, Guangzhou
| | - H Liang
- University of Science and Technology of China, Hefei
| | - C J Lin
- Lawrence Berkeley National Laboratory, Berkeley, California 94720
| | - G L Lin
- Institute of Physics, National Chiao-Tung University, Hsinchu
| | - S Lin
- Dongguan University of Technology, Dongguan
| | - S K Lin
- Department of Physics, University of Houston, Houston, Texas 77204
| | - Y-C Lin
- Department of Physics, National Taiwan University, Taipei
| | - J J Ling
- Sun Yat-Sen (Zhongshan) University, Guangzhou
| | - J M Link
- Center for Neutrino Physics, Virginia Tech, Blacksburg, Virginia 24061
| | - L Littenberg
- Brookhaven National Laboratory, Upton, New York 11973
| | - B R Littlejohn
- Department of Physics, Illinois Institute of Technology, Chicago, Illinois 60616
| | - J L Liu
- Department of Physics and Astronomy, Shanghai Jiao Tong University, Shanghai Laboratory for Particle Physics and Cosmology, Shanghai
| | - J C Liu
- Institute of High Energy Physics, Beijing
| | | | - C Lu
- Joseph Henry Laboratories, Princeton University, Princeton, New Jersey 08544
| | - H Q Lu
- Institute of High Energy Physics, Beijing
| | - J S Lu
- Institute of High Energy Physics, Beijing
| | - K B Luk
- Lawrence Berkeley National Laboratory, Berkeley, California 94720
- Department of Physics, University of California, Berkeley, California 94720
| | - X Y Ma
- Institute of High Energy Physics, Beijing
| | - X B Ma
- North China Electric Power University, Beijing
| | - Y Q Ma
- Institute of High Energy Physics, Beijing
| | - Y Malyshkin
- Instituto de Física, Pontificia Universidad Católica de Chile, Santiago
| | - D A Martinez Caicedo
- Department of Physics, Illinois Institute of Technology, Chicago, Illinois 60616
| | - K T McDonald
- Joseph Henry Laboratories, Princeton University, Princeton, New Jersey 08544
| | - R D McKeown
- California Institute of Technology, Pasadena, California 91125
- College of William and Mary, Williamsburg, Virginia 23187
| | - I Mitchell
- Department of Physics, University of Houston, Houston, Texas 77204
| | - Y Nakajima
- Lawrence Berkeley National Laboratory, Berkeley, California 94720
| | - J Napolitano
- Department of Physics, College of Science and Technology, Temple University, Philadelphia, Pennsylvania 19122
| | - D Naumov
- Joint Institute for Nuclear Research, Dubna, Moscow Region
| | - E Naumova
- Joint Institute for Nuclear Research, Dubna, Moscow Region
| | - H Y Ngai
- Department of Physics, The University of Hong Kong, Pokfulam, Hong Kong
| | - J P Ochoa-Ricoux
- Instituto de Física, Pontificia Universidad Católica de Chile, Santiago
| | - A Olshevskiy
- Joint Institute for Nuclear Research, Dubna, Moscow Region
| | - H-R Pan
- Department of Physics, National Taiwan University, Taipei
| | - J Park
- Center for Neutrino Physics, Virginia Tech, Blacksburg, Virginia 24061
| | - S Patton
- Lawrence Berkeley National Laboratory, Berkeley, California 94720
| | - V Pec
- Charles University, Faculty of Mathematics and Physics, Prague
| | - J C Peng
- Department of Physics, University of Illinois at Urbana-Champaign, Urbana, Illinois 61801
| | - L Pinsky
- Department of Physics, University of Houston, Houston, Texas 77204
| | - C S J Pun
- Department of Physics, The University of Hong Kong, Pokfulam, Hong Kong
| | - F Z Qi
- Institute of High Energy Physics, Beijing
| | - M Qi
- Nanjing University, Nanjing
| | - X Qian
- Brookhaven National Laboratory, Upton, New York 11973
| | - R M Qiu
- North China Electric Power University, Beijing
| | - N Raper
- Sun Yat-Sen (Zhongshan) University, Guangzhou
- Department of Physics, Applied Physics, and Astronomy, Rensselaer Polytechnic Institute, Troy, New York 12180
| | - J Ren
- China Institute of Atomic Energy, Beijing
| | - R Rosero
- Brookhaven National Laboratory, Upton, New York 11973
| | - B Roskovec
- Charles University, Faculty of Mathematics and Physics, Prague
| | - X C Ruan
- China Institute of Atomic Energy, Beijing
| | - H Steiner
- Lawrence Berkeley National Laboratory, Berkeley, California 94720
- Department of Physics, University of California, Berkeley, California 94720
| | - P Stoler
- Department of Physics, Applied Physics, and Astronomy, Rensselaer Polytechnic Institute, Troy, New York 12180
| | - J L Sun
- China General Nuclear Power Group, Shenzhen
| | - W Tang
- Brookhaven National Laboratory, Upton, New York 11973
| | - D Taychenachev
- Joint Institute for Nuclear Research, Dubna, Moscow Region
| | - K Treskov
- Joint Institute for Nuclear Research, Dubna, Moscow Region
| | - K V Tsang
- Lawrence Berkeley National Laboratory, Berkeley, California 94720
| | - C E Tull
- Lawrence Berkeley National Laboratory, Berkeley, California 94720
| | - N Viaux
- Instituto de Física, Pontificia Universidad Católica de Chile, Santiago
| | - B Viren
- Brookhaven National Laboratory, Upton, New York 11973
| | - V Vorobel
- Charles University, Faculty of Mathematics and Physics, Prague
| | - C H Wang
- National United University, Miao-Li
| | - M Wang
- Shandong University, Jinan
| | - N Y Wang
- Beijing Normal University, Beijing
| | - R G Wang
- Institute of High Energy Physics, Beijing
| | - W Wang
- Sun Yat-Sen (Zhongshan) University, Guangzhou
- College of William and Mary, Williamsburg, Virginia 23187
| | - X Wang
- College of Electronic Science and Engineering, National University of Defense Technology, Changsha
| | - Y F Wang
- Institute of High Energy Physics, Beijing
| | - Z Wang
- Department of Engineering Physics, Tsinghua University, Beijing
| | - Z Wang
- Institute of High Energy Physics, Beijing
| | - Z M Wang
- Institute of High Energy Physics, Beijing
| | - H Y Wei
- Department of Engineering Physics, Tsinghua University, Beijing
| | - L J Wen
- Institute of High Energy Physics, Beijing
| | | | - C G White
- Department of Physics, Illinois Institute of Technology, Chicago, Illinois 60616
| | - L Whitehead
- Department of Physics, University of Houston, Houston, Texas 77204
| | - T Wise
- Wright Laboratory and Department of Physics, Yale University, New Haven, Connecticut 06520
| | - H L H Wong
- Lawrence Berkeley National Laboratory, Berkeley, California 94720
- Department of Physics, University of California, Berkeley, California 94720
| | - S C F Wong
- Sun Yat-Sen (Zhongshan) University, Guangzhou
| | - E Worcester
- Brookhaven National Laboratory, Upton, New York 11973
| | - C-H Wu
- Institute of Physics, National Chiao-Tung University, Hsinchu
| | - Q Wu
- Shandong University, Jinan
| | - W J Wu
- Institute of High Energy Physics, Beijing
| | - D M Xia
- Chongqing University, Chongqing
| | - J K Xia
- Institute of High Energy Physics, Beijing
| | - Z Z Xing
- Institute of High Energy Physics, Beijing
| | - J L Xu
- Institute of High Energy Physics, Beijing
| | - Y Xu
- Sun Yat-Sen (Zhongshan) University, Guangzhou
| | - T Xue
- Department of Engineering Physics, Tsinghua University, Beijing
| | - C G Yang
- Institute of High Energy Physics, Beijing
| | - H Yang
- Nanjing University, Nanjing
| | - L Yang
- Dongguan University of Technology, Dongguan
| | - M S Yang
- Institute of High Energy Physics, Beijing
| | | | - Y Z Yang
- Sun Yat-Sen (Zhongshan) University, Guangzhou
| | - M Ye
- Institute of High Energy Physics, Beijing
| | - Z Ye
- Department of Physics, University of Houston, Houston, Texas 77204
| | - M Yeh
- Brookhaven National Laboratory, Upton, New York 11973
| | - B L Young
- Iowa State University, Ames, Iowa 50011
| | - Z Y Yu
- Institute of High Energy Physics, Beijing
| | - S Zeng
- Institute of High Energy Physics, Beijing
| | - L Zhan
- Institute of High Energy Physics, Beijing
| | - C Zhang
- Brookhaven National Laboratory, Upton, New York 11973
| | - C C Zhang
- Institute of High Energy Physics, Beijing
| | - H H Zhang
- Sun Yat-Sen (Zhongshan) University, Guangzhou
| | - J W Zhang
- Institute of High Energy Physics, Beijing
| | - Q M Zhang
- Department of Nuclear Science and Technology, School of Energy and Power Engineering, Xi'an Jiaotong University, Xi'an
| | | | - X T Zhang
- Institute of High Energy Physics, Beijing
| | - Y M Zhang
- Department of Engineering Physics, Tsinghua University, Beijing
| | - Y X Zhang
- China General Nuclear Power Group, Shenzhen
| | - Y M Zhang
- Sun Yat-Sen (Zhongshan) University, Guangzhou
| | - Z J Zhang
- Dongguan University of Technology, Dongguan
| | - Z Y Zhang
- Institute of High Energy Physics, Beijing
| | - Z P Zhang
- University of Science and Technology of China, Hefei
| | - J Zhao
- Institute of High Energy Physics, Beijing
| | - L Zhou
- Institute of High Energy Physics, Beijing
| | - H L Zhuang
- Institute of High Energy Physics, Beijing
| | - J H Zou
- Institute of High Energy Physics, Beijing
| |
Collapse
|