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Osterhaus A, Russell C, MacKenzie D. ESWI pandemic preparedness summit: where science and policy meet : Tuesday 21 June 2022, Brussels and online. One Health Outlook 2023; 5:6. [PMID: 36997984 PMCID: PMC10061382 DOI: 10.1186/s42522-023-00080-7] [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] [Figures] [Subscribe] [Scholar Register] [Received: 11/01/2022] [Accepted: 12/07/2022] [Indexed: 06/19/2023]
Affiliation(s)
| | - Colin Russell
- ESWI Board Member, Academic Medical Center, University of Amsterdam, Amsterdam, The Netherlands
| | - Debora MacKenzie
- Science journalist specialising in infectious disease and author of "Stopping the Next Pandemic", Pays de Gex, France
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Jamieson L, Johnson LF, Nichols BE, Delany-Moretlwe S, Hosseinipour MC, Russell C, Meyer-Rath G. Relative cost-effectiveness of long-acting injectable cabotegravir versus oral pre-exposure prophylaxis in South Africa based on the HPTN 083 and HPTN 084 trials: a modelled economic evaluation and threshold analysis. Lancet HIV 2022; 9:e857-e867. [PMID: 36356603 PMCID: PMC9708606 DOI: 10.1016/s2352-3018(22)00251-x] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/22/2022] [Revised: 08/29/2022] [Accepted: 08/31/2022] [Indexed: 11/09/2022]
Abstract
BACKGROUND Long-acting injectable cabotegravir, a drug taken every 2 months, has been shown to be more effective at preventing HIV infection than daily oral tenofovir disoproxil fumarate and emtricitabine, but its cost-effectiveness in a high-prevalence setting is not known. We aimed to estimate the incremental cost-effectiveness of long-acting injectable cabotegravir compared with tenofovir disoproxil fumarate and emtricitabine in South Africa, using methods standard to government planning, and to determine the threshold price at which long-acting injectable cabotegravir is as cost-effective as tenofovir disoproxil fumarate and emtricitabine. METHODS In this modelled economic evaluation and threshold analysis, we updated a deterministic model of the South African HIV epidemic with data from the HPTN 083 and HPTN 084 trials to evaluate the effect of tenofovir disoproxil fumarate and emtricitabine and long-acting injectable cabotegravir provision to heterosexual adolescents and young women and men aged 15-24 years, female sex workers, and men who have sex with men. We estimated the average intervention cost, in 2021 US$, using ingredients-based costing, and modelled the cost-effectiveness of two coverage scenarios (medium or high, assuming higher uptake of long-acting injectable cabotegravir than tenofovir disoproxil fumarate and emtricitabine throughout) and, for long-acting injectable cabotegravir, two duration subscenarios (minimum: same pre-exposure prophylaxis duration as for tenofovir disoproxil fumarate and emtricitabine; maximum: longer duration than tenofovir disoproxil fumarate and emtricitabine) over 2022-41. FINDINGS Across long-acting injectable cabotegravir scenarios, 15-28% more new HIV infections were averted compared with the baseline scenario (current tenofovir disoproxil fumarate and emtricitabine roll-out). In scenarios with increased coverage with oral tenofovir disoproxil fumarate and emtricitabine, 4-8% more new HIV infections were averted compared with the baseline scenario. If long-acting injectable cabotegravir drug costs were equal to those of tenofovir disoproxil fumarate and emtricitabine for the same 2-month period, the incremental cost of long-acting injectable cabotegravir to the HIV programme was higher than that of tenofovir disoproxil fumarate and emtricitabine (5-10% vs 2-4%) due to higher assumed uptake of long-acting injectable cabotegravir. The cost per infection averted was $6053-6610 (tenofovir disoproxil fumarate and emtricitabine) and $4471-6785 (long-acting injectable cabotegravir). The cost per long-acting cabotegravir injection needed to be less than twice that of a 2-month supply of tenofovir disoproxil fumarate and emtricitabine to remain as cost-effective, with threshold prices ranging between $9·03 per injection (high coverage; maximum duration) and $14·47 per injection (medium coverage; minimum duration). INTERPRETATION Long-acting injectable cabotegravir could potentially substantially change HIV prevention. However, for its implementation to be financially feasible across low-income and middle-income countries with high HIV incidence, long-acting injectable cabotegravir must be reasonably priced. FUNDING United States Agency for International Development, The Bill & Melinda Gates Foundation.
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Affiliation(s)
- Lise Jamieson
- Health Economics and Epidemiology Research Office, Department of Internal Medicine, School of Clinical Medicine, Faculty of Health Sciences, University of the Witwatersrand, Johannesburg, South Africa; Department of Medical Microbiology, Amsterdam University Medical Centre, Amsterdam, Netherlands.
| | - Leigh F Johnson
- Centre of Infectious Disease Epidemiology and Research (CIDER), University of Cape Town, Rondebosch, Western Cape, South Africa
| | - Brooke E Nichols
- Health Economics and Epidemiology Research Office, Department of Internal Medicine, School of Clinical Medicine, Faculty of Health Sciences, University of the Witwatersrand, Johannesburg, South Africa; Department of Medical Microbiology, Amsterdam University Medical Centre, Amsterdam, Netherlands; Department of Global Health, Boston University School of Public Health, Boston, MA, USA
| | - Sinead Delany-Moretlwe
- Wits Reproductive Health and HIV Institute, Faculty of Health Sciences, University of the Witwatersrand, Johannesburg, South Africa
| | - Mina C Hosseinipour
- Division of Infectious Diseases, Department of Medicine, University of North Carolina, Chapel Hill, NC, USA; UNC Project, Lilongwe, Malawi
| | - Colin Russell
- Department of Medical Microbiology, Amsterdam University Medical Centre, Amsterdam, Netherlands; Department of Global Health, Boston University School of Public Health, Boston, MA, USA
| | - Gesine Meyer-Rath
- Health Economics and Epidemiology Research Office, Department of Internal Medicine, School of Clinical Medicine, Faculty of Health Sciences, University of the Witwatersrand, Johannesburg, South Africa; Department of Global Health, Boston University School of Public Health, Boston, MA, USA
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Shutt DP, Goodsman DW, Martinez K, Hemez ZJL, Conrad JR, Xu C, Osthus D, Russell C, Hyman JM, Manore CA. A Process-based Model with Temperature, Water, and Lab-derived Data Improves Predictions of Daily Culex pipiens/restuans Mosquito Density. J Med Entomol 2022; 59:1947-1959. [PMID: 36203397 PMCID: PMC9667726 DOI: 10.1093/jme/tjac127] [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] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 09/13/2021] [Indexed: 06/16/2023]
Abstract
While the number of human cases of mosquito-borne diseases has increased in North America in the last decade, accurate modeling of mosquito population density has remained a challenge. Longitudinal mosquito trap data over the many years needed for model calibration, and validation is relatively rare. In particular, capturing the relative changes in mosquito abundance across seasons is necessary for predicting the risk of disease spread as it varies from year to year. We developed a discrete, semi-stochastic, mechanistic process-based mosquito population model that captures life-cycle egg, larva, pupa, adult stages, and diapause for Culex pipiens (Diptera, Culicidae) and Culex restuans (Diptera, Culicidae) mosquito populations. This model combines known models for development and survival into a fully connected age-structured model that can reproduce mosquito population dynamics. Mosquito development through these stages is a function of time, temperature, daylight hours, and aquatic habitat availability. The time-dependent parameters are informed by both laboratory studies and mosquito trap data from the Greater Toronto Area. The model incorporates city-wide water-body gauge and precipitation data as a proxy for aquatic habitat. This approach accounts for the nonlinear interaction of temperature and aquatic habitat variability on the mosquito life stages. We demonstrate that the full model predicts the yearly variations in mosquito populations better than a statistical model using the same data sources. This improvement in modeling mosquito abundance can help guide interventions for reducing mosquito abundance in mitigating mosquito-borne diseases like West Nile virus.
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Affiliation(s)
- D P Shutt
- Information Systems and Modeling, Los Alamos National Laboratory, P.O. Box 1663, Los Alamos, NM 87545, USA
| | - D W Goodsman
- Earth and Environmental Sciences, Los Alamos National Laboratory, P.O. Box 1663, Los Alamos, NM 87545, USA
- Natural Resources Canada, Northern Forestry Centre, 5320 122 St NW, Edmonton, AB T6H 3S5, Canada
| | - K Martinez
- Information Systems and Modeling, Los Alamos National Laboratory, P.O. Box 1663, Los Alamos, NM 87545, USA
| | - Z J L Hemez
- Computational Physics Division, Los Alamos National Laboratory, P.O. Box 1663, Los Alamos, NM 87545, USA
| | - J R Conrad
- Information Systems and Modeling, Los Alamos National Laboratory, P.O. Box 1663, Los Alamos, NM 87545, USA
- Theoretical Biology and Biophysics, Los Alamos National Laboratory, P.O. Box 1663, Los Alamos, NM 87545, USA
| | - C Xu
- Earth and Environmental Sciences, Los Alamos National Laboratory, P.O. Box 1663, Los Alamos, NM 87545, USA
| | - D Osthus
- Statistical Sciences, Los Alamos National Laboratory, P.O. Box 1663, Los Alamos, NM 87545, USA
| | | | - J M Hyman
- Department of Mathematics, Tulane University, 6823 St Charles Ave, New Orleans, LA 70118, USA
| | - C A Manore
- Earth and Environmental Sciences, Los Alamos National Laboratory, P.O. Box 1663, Los Alamos, NM 87545, USA
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Cicchini S, Russell C, Cullerton K. The relationship between volume of newspaper coverage and policy action for nutrition issues in Australia: a content analysis. Public Health 2022; 210:8-15. [PMID: 35863159 DOI: 10.1016/j.puhe.2022.06.016] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/25/2021] [Revised: 05/23/2022] [Accepted: 06/13/2022] [Indexed: 10/17/2022]
Abstract
OBJECTIVES Unhealthy diets are a leading risk factor for the global burden of disease. Research suggests that comprehensive, population-level solutions are required to attenuate this problem, though such policies have not been adopted. Increased media attention may lead to government-led policy action through issue definition and agenda setting. The aim of this study was to analyse which nutrition policy issues are covered in print media, and whether media attention correlated with relevant policy actions in Australia. STUDY DESIGN/METHODS A content analysis was conducted on newspaper articles published between 1999 and 2019 from 11 major Australian metropolitan newspapers. RESULTS Of the policy issues identified, few received meaningful media attention. Of those with peaks in media attention, only fortification and labelling issues coincided with government-led policy actions, while regulating junk-food advertising to children, sugar-sweetened beverage taxation, and the formulation of a National Nutrition Policy did not result in policy outcomes. CONCLUSIONS Given the limited coverage of nutrition policy issues, the relationship between media attention and policy actions for the captured issues may not be determinable. In addition, factors including social, political, and historical contexts may be stronger influences on policymaking than media attention. Although this study did not demonstrate a relationship between media attention and policy action because of low coverage of nutrition issues, it did identify the media are generally reporting nutrition policy issues with a positive public health framing. Promoting favourable coverage of nutrition policy issues is still an important tool for advocacy globally. Moving forward, increasing the volume of coverage of nutrition issues should be an advocacy priority.
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Affiliation(s)
- S Cicchini
- School of Public Health, The University of Queensland, Brisbane, Australia
| | - C Russell
- School of Public Health, The University of Queensland, Brisbane, Australia; School of Exercise and Nutrition Sciences, Deakin University, Geelong, Australia
| | - K Cullerton
- School of Public Health, The University of Queensland, Brisbane, Australia.
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Wynberg E, Han AX, Boyd A, van Willigen HDG, Verveen A, Lebbink R, van der Straten K, Kootstra N, van Gils MJ, Russell C, Leenstra T, de Jong MD, de Bree GJ, Prins M. The effect of SARS-CoV-2 vaccination on post-acute sequelae of COVID-19 (PASC): A prospective cohort study. Vaccine 2022; 40:4424-4431. [PMID: 35725782 PMCID: PMC9170535 DOI: 10.1016/j.vaccine.2022.05.090] [Citation(s) in RCA: 28] [Impact Index Per Article: 14.0] [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] [Received: 03/07/2022] [Revised: 05/25/2022] [Accepted: 05/31/2022] [Indexed: 11/29/2022]
Abstract
Background Symptoms of post-acute sequelae of COVID-19 (PASC) may improve following SARS-CoV-2 vaccination. However few prospective data that also explore the underlying biological mechanism are available. We assessed the effect of vaccination on symptomatology of participants with PASC, and compared antibody dynamics between those with and without PASC. Methods RECoVERED is a prospective cohort study of adult patients with mild to critical COVID-19, enrolled from illness onset. Among participants with PASC, vaccinated participants were exact-matched 1:1 on age, sex, obesity status and time since illness onset to unvaccinated participants. Between matched pairs, we compared the monthly mean numbers of symptoms over a 3-month follow-up period, and, using exact logistic regression, the proportion of participants who fully recovered from PASC. Finally, we assessed the association between PACS status and rate of decay of spike- and RBD-binding IgG titers up to 9 months after illness onset using Bayesian hierarchical linear regression. Findings Of 349 enrolled participants, 316 (90.5%) had ≥3 months of follow-up, of whom 186 (58.9%) developed PASC. Among 36 matched pairs with PASC, the mean number of symptoms reported each month during 3 months of follow-up were comparable between vaccinated and unvaccinated groups. Odds of full recovery from PASC also did not differ between matched pairs (OR 1.57 [95%CI 0.46–5.84]) within 3 months after the matched time-point. The median half-life of spike- and RBD-binding IgG levels were, in days (95%CrI), 233 (183–324) and 181 (147–230) among participants with PASC, and 170 (125–252) and 144 (113–196) among those without PASC, respectively. Interpretation Our study found no strong evidence to suggest that vaccination improves symptoms of PASC. This was corroborated by comparable spike- and RBD-binding IgG waning trajectories between those with and without PASC, refuting any immunological basis for a therapeutic effect of vaccination on PASC.
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Affiliation(s)
- Elke Wynberg
- Department of Infectious Diseases, Public Health Service of Amsterdam, Amsterdam, the Netherlands; Department of Medical Microbiology & Infection Prevention, Amsterdam UMC, University of Amsterdam, Amsterdam Institute for Infection and Immunity, Amsterdam, the Netherlands.
| | - Alvin X Han
- Department of Medical Microbiology & Infection Prevention, Amsterdam UMC, University of Amsterdam, Amsterdam Institute for Infection and Immunity, Amsterdam, the Netherlands
| | - Anders Boyd
- Department of Infectious Diseases, Public Health Service of Amsterdam, Amsterdam, the Netherlands; Stichting HIV Monitoring, Amsterdam, the Netherlands
| | - Hugo D G van Willigen
- Department of Medical Microbiology & Infection Prevention, Amsterdam UMC, University of Amsterdam, Amsterdam Institute for Infection and Immunity, Amsterdam, the Netherlands; Department of Infectious Diseases, Amsterdam UMC, University of Amsterdam, Amsterdam Institute for Infection and Immunity, Amsterdam, the Netherlands
| | - Anouk Verveen
- Department of Medical Psychology, Amsterdam UMC, Amsterdam Public Health Research Institute, University of Amsterdam, Amsterdam, the Netherlands
| | - Romy Lebbink
- Faculty of Medicine, Amsterdam UMC, University of Amsterdam, Amsterdam, the Netherlands
| | - Karlijn van der Straten
- Department of Medical Microbiology & Infection Prevention, Amsterdam UMC, University of Amsterdam, Amsterdam Institute for Infection and Immunity, Amsterdam, the Netherlands; Department of Infectious Diseases, Amsterdam UMC, University of Amsterdam, Amsterdam Institute for Infection and Immunity, Amsterdam, the Netherlands
| | - Neeltje Kootstra
- Department of Experimental Immunology, Amsterdam UMC, University of Amsterdam, Amsterdam Institute for Infection and Immunity, Amsterdam, the Netherlands
| | - Marit J van Gils
- Department of Medical Microbiology & Infection Prevention, Amsterdam UMC, University of Amsterdam, Amsterdam Institute for Infection and Immunity, Amsterdam, the Netherlands
| | - Colin Russell
- Department of Medical Microbiology & Infection Prevention, Amsterdam UMC, University of Amsterdam, Amsterdam Institute for Infection and Immunity, Amsterdam, the Netherlands
| | - Tjalling Leenstra
- Department of Infectious Diseases, Public Health Service of Amsterdam, Amsterdam, the Netherlands
| | - Menno D de Jong
- Department of Medical Microbiology & Infection Prevention, Amsterdam UMC, University of Amsterdam, Amsterdam Institute for Infection and Immunity, Amsterdam, the Netherlands
| | - Godelieve J de Bree
- Department of Infectious Diseases, Amsterdam UMC, University of Amsterdam, Amsterdam Institute for Infection and Immunity, Amsterdam, the Netherlands
| | - Maria Prins
- Department of Infectious Diseases, Public Health Service of Amsterdam, Amsterdam, the Netherlands; Department of Infectious Diseases, Amsterdam UMC, University of Amsterdam, Amsterdam Institute for Infection and Immunity, Amsterdam, the Netherlands
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Boshara A, Ananthasubramaniam K, Russell C, Bradley P, Nadeem O, Cowger J. Sarcoidosis: Hiding in Plain Sight. J Heart Lung Transplant 2022. [DOI: 10.1016/j.healun.2022.01.1421] [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] Open
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Fadel R, Makki T, Dagher C, Malette KM, Demertzis Z, Ahluwalia G, Sallam O, Miller J, Russell C. Compression wraps as adjuvant therapy in the management of acute systolic heart failure: a pilot clinical trial. Eur Heart J 2021. [DOI: 10.1093/eurheartj/ehab724.1055] [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/Introduction
Current guidelines recommend targeting overall decongestion in management of patients with decompensated heart failure. With lower extremity edema among the most prevalent symptoms in patients admitted with decompensation, this often serves as a clinical target. Lower extremity compression wraps (LECW) are seldom used in the acute setting, with little data on efficacy in heart failure, despite serving as a cornerstone of chronic lymphedema management.
Purpose
Evaluate the efficacy of LECW as adjuvant therapy in management of HF with reduced ejection fraction (EF).
Methods
Open-label, randomized, parallel group controlled trial, with 2:1 randomization of adult patients with a history of HF and reduced EF less than 40% admitted to telemetry unit for intravenous (IV) diuretic therapy.
Results
A total of 32 patients were enrolled, with 29 patients completing the study; 19 (66%) in the control arm, and 10 (34%) in the intervention arm. There were no significant differences in baseline characteristics of the two groups. Patients in the intervention arm required less escalation of diuretic therapy (0 vs 5 patients, p=0.079), and less frequent use of continuous infusion therapy (0 vs 7 patients, p=0.027). Total days of IV diuresis was not significantly different between the two groups. Greater net reduction of edema was seen in the intervention group (1.5+ [1–2] vs 1+ [1–2], p=0.072), with fewer cases of acute kidney injury (1 vs 13, p=0.005). The intervention group scored significantly better on MLWHF (55.5 vs 65, p=0.021), including both the physical (17.5 vs 23, p<0.001) and emotional (5.5 vs 11, p<0.001) dimension scores. Overall LOS was shorter in the intervention group (3.5 [3–7] vs 6 [5–10] days, p=0.05). A Poisson regression model was used to examine the effect of intervention on LOS (IRR=0.62, 95% CI 0.44–0.86, p=0.005), suggesting an overall 38% shorter LOS.
Conclusion
In this open-label parallel group RCT, use of LECW resulted in less IV diuretic continuous infusion therapy, greater net reduction in lower extremity edema, reduced patient assessed HF burden, and shorter hospital LOS, with fewer rates of AKI. Trends toward fewer total days of IV diuresis, less escalation of diuresis, and greater reduction in edema were also observed. Larger scale clinical trials are needed to further establish LECW as efficacious adjuvant therapy in the management of acute heart failure.
Funding Acknowledgement
Type of funding sources: None.
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Affiliation(s)
- R Fadel
- Henry Ford Hospital, Internal Medicine, Detroit, United States of America
| | - T Makki
- Henry Ford Hospital, Cardiovascular Medicine, Detroit, United States of America
| | - C Dagher
- Henry Ford Hospital, Internal Medicine, Detroit, United States of America
| | - K M Malette
- Henry Ford Hospital, Internal Medicine, Detroit, United States of America
| | - Z Demertzis
- Henry Ford Hospital, Internal Medicine, Detroit, United States of America
| | - G Ahluwalia
- Henry Ford Hospital, Internal Medicine, Detroit, United States of America
| | - O Sallam
- Henry Ford Hospital, Internal Medicine, Detroit, United States of America
| | - J Miller
- Henry Ford Hospital, Emergency Medicine, Detroit, United States of America
| | - C Russell
- Henry Ford Hospital, Cardiovascular Medicine, Detroit, United States of America
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Koopsen J, Parker E, Han AX, van de Laar T, Russell C, Hoornenborg E, Prins M, van der Valk M, Schinkel J. Hepatitis C Virus Transmission Among Men Who Have Sex With Men in Amsterdam: External Introductions May Complicate Microelimination Efforts. Clin Infect Dis 2021; 72:e1056-e1063. [PMID: 33289036 DOI: 10.1093/cid/ciaa1830] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/12/2020] [Indexed: 02/07/2023] Open
Abstract
BACKGROUND It is unclear whether unrestricted access and high uptake of direct-acting antivirals (DAAs) is sufficient to eliminate hepatitis C virus (HCV) in high-risk populations such as men who have sex with men (MSM). This study presents historic trends and current dynamics of HCV transmission among MSM in Amsterdam based on sequence data collected between 1994 and 2019. METHODS Hypervariable region 1 sequences of 232 primary HCV infections and 56 reinfections were obtained from 244 MSM in care in Amsterdam. Maximum-likelihood phylogenies were constructed for HCV genotypes separately, and time-scaled phylogenies were constructed using a Bayesian coalescent approach. Transmission clusters were determined by Phydelity and trends in the proportion of unclustered sequences over time were evaluated using logistic regression. RESULTS Seventy-six percent (218/288) of sequences were part of 21 transmission clusters and 13 transmission pairs. Transmission cluster sizes ranged from 3 to 44 sequences. Most clusters were introduced between the late 1990s and early 2010s and no new clusters were introduced after 2012. The proportion of unclustered sequences of subtype 1a, the most prevalent subtype in this population, fluctuated between 0% and 20% in 2009-2012, after which an increase occurred from 0% in 2012 to 50% in 2018. CONCLUSIONS The proportion of external introductions of HCV infections among MSM in Amsterdam has recently increased, coinciding with high DAA uptake. Frequent international transmission events will likely complicate local microelimination efforts. Therefore, international collaboration combined with international scale-up of prevention, testing, and treatment of HCV infections (including reinfections) is warranted, in particular for local microelimination efforts.
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Affiliation(s)
- Jelle Koopsen
- Department of Medical Microbiology, Laboratory of Applied Evolutionary Biology, Amsterdam University Medical Centers, University of Amsterdam, Amsterdam, The Netherlands
| | - Edyth Parker
- Department of Medical Microbiology, Laboratory of Applied Evolutionary Biology, Amsterdam University Medical Centers, University of Amsterdam, Amsterdam, The Netherlands.,Department of Veterinary Medicine, University of Cambridge, Cambridge, United Kingdom
| | - Alvin X Han
- Department of Medical Microbiology, Laboratory of Applied Evolutionary Biology, Amsterdam University Medical Centers, University of Amsterdam, Amsterdam, The Netherlands
| | - Thijs van de Laar
- Department of Donor Medicine Research, Laboratory of Blood-borne Infections, Sanquin Research, Amsterdam, The Netherlands.,Laboratory of Medical Microbiology, Onze Lieve Vrouwe Gasthuis, Amsterdam, The Netherlands
| | - Colin Russell
- Department of Medical Microbiology, Laboratory of Applied Evolutionary Biology, Amsterdam University Medical Centers, University of Amsterdam, Amsterdam, The Netherlands
| | - Elske Hoornenborg
- Sexually Transmitted Infections Outpatient Clinic, Public Health Service of Amsterdam, Amsterdam, The Netherlands.,Department of Infectious Diseases, Research and Prevention, Public Health Service of Amsterdam, Amsterdam, The Netherlands
| | - Maria Prins
- Department of Infectious Diseases, Research and Prevention, Public Health Service of Amsterdam, Amsterdam, The Netherlands.,Division of Infectious Diseases, Amsterdam Infection and Immunity Institute, Amsterdam University Medical Centers, University of Amsterdam, Amsterdam, The Netherlands
| | - Marc van der Valk
- Division of Infectious Diseases, Amsterdam Infection and Immunity Institute, Amsterdam University Medical Centers, University of Amsterdam, Amsterdam, The Netherlands
| | - Janke Schinkel
- Department of Medical Microbiology, Section of Clinical Virology, Amsterdam University Medical Centers, University of Amsterdam, Amsterdam, The Netherlands
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Trammell J, Epstein F, Liu C, Denhaerynck K, Dobbels F, Russell C, De Geest S. Gender Differences in Adherence to Nonpharmacological Health-Related Behaviors after Heart Transplant: A Secondary Analysis from the International BRIGHT Study. J Heart Lung Transplant 2021. [DOI: 10.1016/j.healun.2021.01.575] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022] Open
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Russell C, Tahlil K, Davis M, Winston A, Amaambo T, Hamunime N, Pietersen I, Jordan MR, Tang AM, Hong SY. Barriers to condom use among key populations in Namibia. Int J STD AIDS 2020; 30:1417-1424. [PMID: 31795925 DOI: 10.1177/0956462419875884] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
Key populations (KPs), particularly female sex workers (FSWs) and men who have sex with men (MSM), are at increased risk for HIV. Namibia is a global priority for HIV prevention interventions. Marginalized communities must be provided effective and culturally appropriate means to prevent HIV, namely condom use. This cross-sectional analysis of data collected by The Society for Family Health was conducted from 2016 to 2017 in Namibia. Demographics and consistent condom use (CCU) barriers were analyzed among 621 FSWs, MSM, and Other KPs. From the data, 37% FSWs, 24% MSM, and 28% Other KPs were HIV-positive. One-quarter of FSWs and Other KPs reported CCU, while 46% MSM reported CCU. Consistent condom users were more likely to be HIV-negative, have achieved a higher education and use condom-compatible lubricant (CCL). In a multivariate model, higher education, being HIV-negative, and always using CCL remained independent correlates of CCU. Substance use and condom unavailability were the most commonly identified barriers to CCU. FSWs reported client-focused reasons for not using condoms. To the best of our knowledge, this is the first peer-reviewed study assessing condom use behavior and associated factors among FSWs and MSM in Namibia.
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Affiliation(s)
- Colin Russell
- Department of Public Health and Community Medicine, Tufts University School of Medicine, Boston, MA, USA
| | - Kadija Tahlil
- Department of Public Health and Community Medicine, Tufts University School of Medicine, Boston, MA, USA
| | - Margaret Davis
- Department of Public Health and Community Medicine, Tufts University School of Medicine, Boston, MA, USA
| | - Anna Winston
- Department of Public Health and Community Medicine, Tufts University School of Medicine, Boston, MA, USA
| | | | - Ndapewa Hamunime
- Directorate of Special Programmes, Ministry of Health and Social Services, Windhoek, Namibia
| | - Ismelda Pietersen
- Directorate of Special Programmes, Ministry of Health and Social Services, Windhoek, Namibia
| | - Michael R Jordan
- Department of Public Health and Community Medicine, Tufts University School of Medicine, Boston, MA, USA.,Division of Geographic Medicine and Infectious Diseases, Tufts Medical Center, Boston, MA, USA
| | - Alice M Tang
- Department of Public Health and Community Medicine, Tufts University School of Medicine, Boston, MA, USA
| | - Steven Y Hong
- Department of Public Health and Community Medicine, Tufts University School of Medicine, Boston, MA, USA.,Division of Geographic Medicine and Infectious Diseases, Tufts Medical Center, Boston, MA, USA
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Giordano BV, Gasparotto A, Liang P, Nelder MP, Russell C, Hunter FF. Discovery of an Aedes (Stegomyia) albopictus population and first records of Aedes (Stegomyia) aegypti in Canada. Med Vet Entomol 2020; 34:10-16. [PMID: 31566765 DOI: 10.1111/mve.12408] [Citation(s) in RCA: 22] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/22/2019] [Revised: 08/15/2019] [Accepted: 08/28/2019] [Indexed: 06/10/2023]
Abstract
A population of Aedes (Stegomyia) albopictus (Skuse) (Diptera: Culicidae), a vector of chikungunya, dengue, yellow fever, and Zika and West Nile viruses, has been detected in Windsor, Ontario, Canada from 2016 onwards. Here, we describe its seasonal distribution, as well as the various aquatic habitats from which this species was collected and its larval co-habitation. We collected immatures from tires, treeholes, extruded polystyrene foam containers, discarded plastic cups, old recycling bins and oviposition traps. Aedes albopictus larvae were collected with Aedes japonicus (Theobald), Anopheles punctipennis (Say), Culex pipiens Linnaeus, Ochlerotatus hendersoni (Cockerell), Ochlerotatus triseriatus (Say) and Orthopodomyia signifera (Coquillett). Adult female and male specimens were collected from Biogents sentinel traps (Biogents AG, Regensburg, Germany), as well as Centers for Disease Control and Prevention miniature light traps (CDC, Atlanta, GA, U.S.A.), and also as they alighted on the investigators. Peak adult collections occurred in September during epidemiological week 37. We also collected Aedes (Stegomyia) aegypti (Linnaeus), a new record for Canada, in 2016 and from two new collection sites in 2017. The 2017 collections were 3.5 km north and 19.4 km south of the index site. The present study adds to the increasing number of studies reporting range expansions of these mosquito species.
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Affiliation(s)
- B V Giordano
- Centre for Vector-Borne Diseases, Brock University, St Catharines, Canada
- Centre for Biotechnology, Brock University, St Catharines, Canada
- Entomogen Inc., St Catharines, Canada
| | | | - P Liang
- Centre for Vector-Borne Diseases, Brock University, St Catharines, Canada
- Centre for Biotechnology, Brock University, St Catharines, Canada
- Department of Biological Sciences, Brock University, St Catharines, Canada
| | - M P Nelder
- Enteric, Zoonotic and Vector-Borne Diseases Unit, Public Health Ontario, Toronto, Canada
| | - C Russell
- Enteric, Zoonotic and Vector-Borne Diseases Unit, Public Health Ontario, Toronto, Canada
| | - F F Hunter
- Centre for Vector-Borne Diseases, Brock University, St Catharines, Canada
- Centre for Biotechnology, Brock University, St Catharines, Canada
- Entomogen Inc., St Catharines, Canada
- Department of Biological Sciences, Brock University, St Catharines, Canada
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13
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Koopsen J, Russell C, van der Valk M, Schinkel J. A21 Retrospectively describing hepatitis C virus transmission dynamics and tracking HCV transmission networks in real-time for strategic elimination interventions. Virus Evol 2019. [PMCID: PMC6735699 DOI: 10.1093/ve/vez002.020] [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] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022] Open
Abstract
Despite impressive uptake of direct acting antivirals for hepatitis C virus (HCV) in the Netherlands among HIV/HCV co-infected men who have sex with men (MSM), HCV transmission continues, especially among patients previously successfully treated for HCV. The incidence of reinfection occurs at the extremely high rate of 15 per 100 person-years. Clearly, more sophisticated methods are necessary to identify the sources and timing of new HCV infections among MSM. The aim of this research is to phylogenetically characterize HCV transmission dynamics within MSM-specific networks in order to provide a solid base for targeted interventions to monitor, control, and eventually stop the ongoing transmission of HCV among HIV-infected MSM and to prevent further spread of HCV to the community at large. The methodology that will be used is two-fold. Firstly, it concerns setting up a real-time monitoring system to track the HCV epidemic using phylogenetic tools and open-source software from http://nextstrain.org. Secondly, several phylogenetic methods will be used to retrospectively identify transmission clusters in Amsterdam and define epidemiological characteristics, including the directionality of transmission and the size and introduction dates of the clusters. This means that cluster cut-off points will have to be calculated. This research will result in a web-based molecular surveillance tool to monitor the persistence of endemic clades, emergence of new clades, and transmission clusters in ‘real time’, which, combined with clinical and epidemiological data, will be used for targeted interventions. The surveillance tool will be based on the open-source software from nextstrain.org. Secondly, by retrospectively describing the HCV transmission clusters in terms of introduction dates and subsequent dynamics, we may be able to better predict the future dynamics of the different clusters. High-resolution viral sequencing will allow us to identify the source and timing of (new) HCV infections and follow the trajectory of these MSM-specific lineages through the MSM population. Real-time insight in transmission networks using a web-based molecular surveillance tool will identify key targets for rapid interventions, awareness campaigns, and testing strategies. This can be used to prevent further spread to HIV-negative MSM and to control and eventually eliminate HCV from the MSM population.
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Affiliation(s)
- J Koopsen
- Lab of Clinical Virology, Department of Medical Microbiology, Academic Medical Center, Amsterdam, The Netherlands
| | - C Russell
- Lab of Applied Evolutionary Biology, Department of Medical Microbiology, Academic Medical Center, Amsterdam, The Netherlands
| | - M van der Valk
- Division of Infectious Diseases, Department of Internal Medicine, Academic Medical Center, Amsterdam, The Netherlands
| | - J Schinkel
- Lab of Clinical Virology, Department of Medical Microbiology, Academic Medical Center, Amsterdam, The Netherlands
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McAllister P, O'Neill T, Fair J, Russell C, Devlin M. Unilateral soft palate palsy secondary to blunt neck trauma: a case report. Br J Oral Maxillofac Surg 2019; 57:694-696. [PMID: 31239228 DOI: 10.1016/j.bjoms.2019.05.024] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/23/2019] [Accepted: 05/16/2019] [Indexed: 11/30/2022]
Abstract
Unilateral soft palate paralysis is rare. No cases of unilateral soft palate paralysis with associated velopharyngeal insufficiency (VPI) secondary to minor blunt neck trauma have been reported to date. This case details the presentation of a man with isolated unilateral soft palate paralysis and associated velopharyngeal insufficiency following a collision with an opponent when playing soccer.
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Affiliation(s)
- P McAllister
- Oral and Maxillofacial Surgery, Queen Elizabeth University Hospital, Glasgow, UK.
| | - T O'Neill
- Department of Cleft Surgery, Royal Hospital for Children, Glasgow, UK
| | - J Fair
- Department of Speech and Language Therapy, Aberdeen Children's Hospital, UK
| | - C Russell
- Department of Cleft Surgery, Royal Hospital for Children, Glasgow, UK
| | - M Devlin
- Department of Cleft Surgery, Royal Hospital for Children, Glasgow, UK
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15
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Poorvu PD, Gelber SI, Rosenberg SM, Ruddy KJ, Tamimi RM, Collins LC, Peppercorn J, Schapira L, Borges VF, Come SE, Warner E, Jakubowski DM, Russell C, Winer EP, Partridge AH. Abstract P2-08-07: Prognostic impact of the 21-gene recurrence score assay among young women with node-negative and node-positive ER+/HER2- breast cancer. Cancer Res 2019. [DOI: 10.1158/1538-7445.sabcs18-p2-08-07] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Abstract
Background: The 21-gene Recurrence Score (RS) assay is prognostic among women with early-stage estrogen receptor (ER) positive and human epidermal growth factor receptor 2 (HER2) negative breast cancer (BC) and is used to select patients for chemotherapy (CT). Young women (age <40) have represented a minority in studies evaluating gene expression assays, including TAILORx, and additional data in young women are needed.
Methods: In the Young Women's Breast Cancer Study, a prospective cohort study of women diagnosed with BC at age <40 enrolling between 2006-2016 (N=1302), we identified those with stage I-III ER+/HER2- BC. Disease and treatment information were obtained through serial surveys and medical record review. The RS was performed on banked specimens for those not tested clinically. Distant recurrence free interval (DRFI), defined as distant recurrence or BC specific death, by risk group was assessed using Cox regression and Kaplan-Meier survival estimates. Outcomes by receipt of CT were explored in the RS 11-25 group, and due to small number of events, reported descriptively.
Results: Among eligible women (N=577), 189 (33%) had undergone RS testing and 320 (56%) had banked specimens sufficient for testing. Median follow-up was 6 years. Median age at diagnosis was 37, most had N0 BC (300/509, 59%), and the majority had RS 11-25 (306/509, 60%). RS result was significantly associated with DRFI in N0 BC, with hazard ratio (HR) (95% CI) of 0.29 (0.07,1.30) and 0.21 (0.09,0.50) for RS<11 and RS 11-25, respectively, relative to RS>26 (and trended towards significance in N1 BC). Results were similar using conventional RS groups. Among women with N0 BC and RS 11-25, 44% received CT, with two events in the 86 receiving CT (2.3%) and 6 events in the 109 without CT (5.5%); 5/8 (63%) occurred in those with RS 20-25.
Table 1 N0N1Total Cohort N%N%N% 3005916332509100Median Age37.137.537.2Tumor Stage T120869694229358T28227784817635T3103159357T4001151Grade I4716855711II16555794926652III8829754618536Not assessed 1 1 PR status by IHC Negative (<1%)2071710398Positive (>=1%)280931469047092Chemotherapy No1414712715430Yes159531519335570Ovarian Suppression No263881499145289Yes37121495711TAILORx RS Groups RS <1133111495411RS 11-2519565885430660RS >=267224613714929Conventional RS Groups RS <1812742543319939RS 18-3012542694221142RS >=31481640259919
Table 2 6-year freedom from distant recurrence or breast cancer deathDRFI HR (95% CI) N0N1N0N1TAILORx RS Groups RS <1194.4%92.3%0.29 (0.07,1.30)0.21 (0.03,1.61)RS 11-2596.9%85.2%0.21 (0.09, 0.50)0.55 (0.27,1.12)RS >=2685.1%71.3%RefRefConventional RS Groups RS <1897.5%85.9%0.19 (0.06,0.59)0.31 (0.13,0.74)RS 18-3093.1%87.3%0.39 (0.16,1.00)0.32 (0.14,0.73)RS >=3186.4%62.8%RefRef
Conclusions: The RS is prognostic among young women with node-negative and node-positive BC, and is a valuable tool for risk stratification. Disease outcomes among young women with N0 disease and RS 11-25, a minority of whom received CT, are very good. Evaluation of the effect of ovarian suppression/CT-induced amenorrhea by RS/treatment strata is ongoing.
Citation Format: Poorvu PD, Gelber SI, Rosenberg SM, Ruddy KJ, Tamimi RM, Collins LC, Peppercorn J, Schapira L, Borges VF, Come SE, Warner E, Jakubowski DM, Russell C, Winer EP, Partridge AH. Prognostic impact of the 21-gene recurrence score assay among young women with node-negative and node-positive ER+/HER2- breast cancer [abstract]. In: Proceedings of the 2018 San Antonio Breast Cancer Symposium; 2018 Dec 4-8; San Antonio, TX. Philadelphia (PA): AACR; Cancer Res 2019;79(4 Suppl):Abstract nr P2-08-07.
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Affiliation(s)
- PD Poorvu
- Dana-Farber Cancer Institute, Boston, MA; Mayo Clinic, Rochester, MN; Brigham and Women's Hospital, Boston, MA; Beth Israel Deaconess Medical Center, Boston, MA; Massachusetts General Hospital, Boston, MA; Stanford University, Palo Alto, CA; University of Colorado Cancer Center, Aurora, CO; Sunnybrook Health Sciences Centre, Toronto, ON, Canada; Genomic Health Inc., Redwood City, CA
| | - SI Gelber
- Dana-Farber Cancer Institute, Boston, MA; Mayo Clinic, Rochester, MN; Brigham and Women's Hospital, Boston, MA; Beth Israel Deaconess Medical Center, Boston, MA; Massachusetts General Hospital, Boston, MA; Stanford University, Palo Alto, CA; University of Colorado Cancer Center, Aurora, CO; Sunnybrook Health Sciences Centre, Toronto, ON, Canada; Genomic Health Inc., Redwood City, CA
| | - SM Rosenberg
- Dana-Farber Cancer Institute, Boston, MA; Mayo Clinic, Rochester, MN; Brigham and Women's Hospital, Boston, MA; Beth Israel Deaconess Medical Center, Boston, MA; Massachusetts General Hospital, Boston, MA; Stanford University, Palo Alto, CA; University of Colorado Cancer Center, Aurora, CO; Sunnybrook Health Sciences Centre, Toronto, ON, Canada; Genomic Health Inc., Redwood City, CA
| | - KJ Ruddy
- Dana-Farber Cancer Institute, Boston, MA; Mayo Clinic, Rochester, MN; Brigham and Women's Hospital, Boston, MA; Beth Israel Deaconess Medical Center, Boston, MA; Massachusetts General Hospital, Boston, MA; Stanford University, Palo Alto, CA; University of Colorado Cancer Center, Aurora, CO; Sunnybrook Health Sciences Centre, Toronto, ON, Canada; Genomic Health Inc., Redwood City, CA
| | - RM Tamimi
- Dana-Farber Cancer Institute, Boston, MA; Mayo Clinic, Rochester, MN; Brigham and Women's Hospital, Boston, MA; Beth Israel Deaconess Medical Center, Boston, MA; Massachusetts General Hospital, Boston, MA; Stanford University, Palo Alto, CA; University of Colorado Cancer Center, Aurora, CO; Sunnybrook Health Sciences Centre, Toronto, ON, Canada; Genomic Health Inc., Redwood City, CA
| | - LC Collins
- Dana-Farber Cancer Institute, Boston, MA; Mayo Clinic, Rochester, MN; Brigham and Women's Hospital, Boston, MA; Beth Israel Deaconess Medical Center, Boston, MA; Massachusetts General Hospital, Boston, MA; Stanford University, Palo Alto, CA; University of Colorado Cancer Center, Aurora, CO; Sunnybrook Health Sciences Centre, Toronto, ON, Canada; Genomic Health Inc., Redwood City, CA
| | - J Peppercorn
- Dana-Farber Cancer Institute, Boston, MA; Mayo Clinic, Rochester, MN; Brigham and Women's Hospital, Boston, MA; Beth Israel Deaconess Medical Center, Boston, MA; Massachusetts General Hospital, Boston, MA; Stanford University, Palo Alto, CA; University of Colorado Cancer Center, Aurora, CO; Sunnybrook Health Sciences Centre, Toronto, ON, Canada; Genomic Health Inc., Redwood City, CA
| | - L Schapira
- Dana-Farber Cancer Institute, Boston, MA; Mayo Clinic, Rochester, MN; Brigham and Women's Hospital, Boston, MA; Beth Israel Deaconess Medical Center, Boston, MA; Massachusetts General Hospital, Boston, MA; Stanford University, Palo Alto, CA; University of Colorado Cancer Center, Aurora, CO; Sunnybrook Health Sciences Centre, Toronto, ON, Canada; Genomic Health Inc., Redwood City, CA
| | - VF Borges
- Dana-Farber Cancer Institute, Boston, MA; Mayo Clinic, Rochester, MN; Brigham and Women's Hospital, Boston, MA; Beth Israel Deaconess Medical Center, Boston, MA; Massachusetts General Hospital, Boston, MA; Stanford University, Palo Alto, CA; University of Colorado Cancer Center, Aurora, CO; Sunnybrook Health Sciences Centre, Toronto, ON, Canada; Genomic Health Inc., Redwood City, CA
| | - SE Come
- Dana-Farber Cancer Institute, Boston, MA; Mayo Clinic, Rochester, MN; Brigham and Women's Hospital, Boston, MA; Beth Israel Deaconess Medical Center, Boston, MA; Massachusetts General Hospital, Boston, MA; Stanford University, Palo Alto, CA; University of Colorado Cancer Center, Aurora, CO; Sunnybrook Health Sciences Centre, Toronto, ON, Canada; Genomic Health Inc., Redwood City, CA
| | - E Warner
- Dana-Farber Cancer Institute, Boston, MA; Mayo Clinic, Rochester, MN; Brigham and Women's Hospital, Boston, MA; Beth Israel Deaconess Medical Center, Boston, MA; Massachusetts General Hospital, Boston, MA; Stanford University, Palo Alto, CA; University of Colorado Cancer Center, Aurora, CO; Sunnybrook Health Sciences Centre, Toronto, ON, Canada; Genomic Health Inc., Redwood City, CA
| | - DM Jakubowski
- Dana-Farber Cancer Institute, Boston, MA; Mayo Clinic, Rochester, MN; Brigham and Women's Hospital, Boston, MA; Beth Israel Deaconess Medical Center, Boston, MA; Massachusetts General Hospital, Boston, MA; Stanford University, Palo Alto, CA; University of Colorado Cancer Center, Aurora, CO; Sunnybrook Health Sciences Centre, Toronto, ON, Canada; Genomic Health Inc., Redwood City, CA
| | - C Russell
- Dana-Farber Cancer Institute, Boston, MA; Mayo Clinic, Rochester, MN; Brigham and Women's Hospital, Boston, MA; Beth Israel Deaconess Medical Center, Boston, MA; Massachusetts General Hospital, Boston, MA; Stanford University, Palo Alto, CA; University of Colorado Cancer Center, Aurora, CO; Sunnybrook Health Sciences Centre, Toronto, ON, Canada; Genomic Health Inc., Redwood City, CA
| | - EP Winer
- Dana-Farber Cancer Institute, Boston, MA; Mayo Clinic, Rochester, MN; Brigham and Women's Hospital, Boston, MA; Beth Israel Deaconess Medical Center, Boston, MA; Massachusetts General Hospital, Boston, MA; Stanford University, Palo Alto, CA; University of Colorado Cancer Center, Aurora, CO; Sunnybrook Health Sciences Centre, Toronto, ON, Canada; Genomic Health Inc., Redwood City, CA
| | - AH Partridge
- Dana-Farber Cancer Institute, Boston, MA; Mayo Clinic, Rochester, MN; Brigham and Women's Hospital, Boston, MA; Beth Israel Deaconess Medical Center, Boston, MA; Massachusetts General Hospital, Boston, MA; Stanford University, Palo Alto, CA; University of Colorado Cancer Center, Aurora, CO; Sunnybrook Health Sciences Centre, Toronto, ON, Canada; Genomic Health Inc., Redwood City, CA
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16
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Siddiqui A, Devlin M, Russell C, Campbell L. The burden of Non Cleft Velopharyngeal Incompetence (VPI) in cleft service: a Scottish perspective. Br J Oral Maxillofac Surg 2018. [DOI: 10.1016/j.bjoms.2018.10.240] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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17
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Lucas E, Whyte T, Liu J, Russell C, Tetzlaff W, Cripton PA. High-Speed Fluoroscopy to Measure Dynamic Spinal Cord Deformation in an In Vivo Rat Model. J Neurotrauma 2018; 35:2572-2580. [PMID: 29786472 DOI: 10.1089/neu.2017.5478] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [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: 01/08/2023] Open
Abstract
Although spinal cord deformation is thought to be a predictor of injury severity, few researchers have investigated dynamic cord deformation, in vivo, during impact. This is needed to establish correlations among impact parameters, internal cord deformation, and histological and functional outcomes. Relying on surface deformations alone may not sufficiently represent spinal cord deformation. The objective of this study was to develop a high-speed fluoroscopic method of tracking the surface and internal cord deformations of rat spinal cord during experimental cord injury. Two radio-opaque beads were injected into the cord at C5/6 in the dorsal and ventral white matter. Four additional beads were glued to the surface of the cord. Dynamic bead displacement was tracked during a dorsal impact (130 mm/sec, 1 mm depth) by high-speed radiographic imaging at 3000 FPS, laterally. The internal spinal cord beads displaced significantly more than the surface beads in the ventral direction (1.1-1.9 times) and more than most surface beads in the cranial direction (1.2-1.5 times). The dorsal beads (internal and surface) displaced more than the ventral beads during all impacts. The bead displacement pattern implies that the spinal cord undergoes complex internal and surface deformations during impact. Residual displacement of the internal beads was significantly greater than that of the surface beads in the cranial-caudal direction but not the dorsoventral direction. Finite element simulation confirmed that the additional bead mass likely had little effect on the internal cord deformations. These results support the merit of this technique for measuring in vivo spinal cord deformation.
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Affiliation(s)
- Erin Lucas
- 1 Orthopaedic Injury Biomechanics Group, Departments of Mechanical Engineering and Orthopaedics and the School of Biomedical Engineering, The University of British Columbia , Vancouver, British Columbia, Canada .,2 International Collaboration on Repair Discoveries (ICORD), The University of British Columbia , Vancouver, British Columbia, Canada
| | - Thomas Whyte
- 1 Orthopaedic Injury Biomechanics Group, Departments of Mechanical Engineering and Orthopaedics and the School of Biomedical Engineering, The University of British Columbia , Vancouver, British Columbia, Canada .,2 International Collaboration on Repair Discoveries (ICORD), The University of British Columbia , Vancouver, British Columbia, Canada
| | - Jie Liu
- 2 International Collaboration on Repair Discoveries (ICORD), The University of British Columbia , Vancouver, British Columbia, Canada
| | - Colin Russell
- 1 Orthopaedic Injury Biomechanics Group, Departments of Mechanical Engineering and Orthopaedics and the School of Biomedical Engineering, The University of British Columbia , Vancouver, British Columbia, Canada .,2 International Collaboration on Repair Discoveries (ICORD), The University of British Columbia , Vancouver, British Columbia, Canada
| | - Wolfram Tetzlaff
- 2 International Collaboration on Repair Discoveries (ICORD), The University of British Columbia , Vancouver, British Columbia, Canada
| | - Peter Alec Cripton
- 1 Orthopaedic Injury Biomechanics Group, Departments of Mechanical Engineering and Orthopaedics and the School of Biomedical Engineering, The University of British Columbia , Vancouver, British Columbia, Canada .,2 International Collaboration on Repair Discoveries (ICORD), The University of British Columbia , Vancouver, British Columbia, Canada
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18
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Hahn B, Youssef E, Hassan S, Gao T, Russell C, Ardolic B. 337 Characteristics of Prior Emergency Departments Visits Associated With Subsequent Opioid Overdose. Ann Emerg Med 2018. [DOI: 10.1016/j.annemergmed.2018.08.342] [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]
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19
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Seekings AH, Slomka MJ, Russell C, Howard WA, Choudhury B, Nuñéz A, Löndt BZ, Cox W, Ceeraz V, Thorén P, Irvine RM, Manvell RJ, Banks J, Brown IH. Direct evidence of H7N7 avian influenza virus mutation from low to high virulence on a single poultry premises during an outbreak in free range chickens in the UK, 2008. Infect Genet Evol 2018; 64:13-31. [PMID: 29883773 DOI: 10.1016/j.meegid.2018.06.005] [Citation(s) in RCA: 30] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/23/2018] [Revised: 05/24/2018] [Accepted: 06/03/2018] [Indexed: 11/30/2022]
Abstract
H5 and H7 subtypes of low pathogenicity avian influenza viruses (LPAIVs) have the potential to evolve into highly pathogenic avian influenza viruses (HPAIVs), causing high mortality in galliforme poultry with substantial economic losses for the poultry industry. This study provides direct evidence of H7N7 LPAIV mutation to HPAIV on a single poultry premises during an outbreak that occurred in June 2008 in free range laying hens in Oxfordshire, UK. We report the first detection of a rare di-basic cleavage site (CS) motif (PEIPKKRGLF), unique to galliformes, that has previously been associated with a LPAIV phenotype. Three distinct HPAIV CS sequences (PEIPKRKKRGLF, PEIPKKKKRGLF and PEIPKKKKKKRGLF) were identified in the infected sheds suggesting molecular evolution at the outbreak premises. Further evidence for H7N7 LPAIV preceding mutation to HPAIV was derived by examining clinical signs, epidemiological descriptions and analysing laboratory results on the timing and proportions of seroconversion and virus shedding at each infected shed on the premises. In addition to describing how the outbreak was diagnosed and managed via statutory laboratory testing, phylogenetic analysis revealed reassortant events during 2006-2008 that suggested likely incursion of a wild bird origin LPAIV precursor to the H7N7 HPAIV outbreak. Identifying a precursor LPAIV is important for understanding the molecular changes and mechanisms involved in the emergence of HPAIV. This information can lead to understanding how and why only some H7 LPAIVs appear to readily mutate to HPAIV.
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Affiliation(s)
- A H Seekings
- Virology Department, Animal and Plant Health Agency (APHA-Weybridge), Addlestone, Surrey KT15 3NB, United Kingdom.
| | - M J Slomka
- Virology Department, Animal and Plant Health Agency (APHA-Weybridge), Addlestone, Surrey KT15 3NB, United Kingdom
| | - C Russell
- Virology Department, Animal and Plant Health Agency (APHA-Weybridge), Addlestone, Surrey KT15 3NB, United Kingdom
| | - W A Howard
- Virology Department, Animal and Plant Health Agency (APHA-Weybridge), Addlestone, Surrey KT15 3NB, United Kingdom
| | - B Choudhury
- Virology Department, Animal and Plant Health Agency (APHA-Weybridge), Addlestone, Surrey KT15 3NB, United Kingdom
| | - A Nuñéz
- Pathology Department, Animal and Plant Health Agency (APHA-Weybridge), Addlestone, Surrey KT15 3NB, United Kingdom
| | - B Z Löndt
- Virology Department, Animal and Plant Health Agency (APHA-Weybridge), Addlestone, Surrey KT15 3NB, United Kingdom
| | - W Cox
- Virology Department, Animal and Plant Health Agency (APHA-Weybridge), Addlestone, Surrey KT15 3NB, United Kingdom
| | - V Ceeraz
- Virology Department, Animal and Plant Health Agency (APHA-Weybridge), Addlestone, Surrey KT15 3NB, United Kingdom
| | - P Thorén
- Swedish Agricultural University (SLU), Uppsala, Sweden
| | - R M Irvine
- Virology Department, Animal and Plant Health Agency (APHA-Weybridge), Addlestone, Surrey KT15 3NB, United Kingdom
| | - R J Manvell
- Virology Department, Animal and Plant Health Agency (APHA-Weybridge), Addlestone, Surrey KT15 3NB, United Kingdom
| | - J Banks
- Virology Department, Animal and Plant Health Agency (APHA-Weybridge), Addlestone, Surrey KT15 3NB, United Kingdom
| | - I H Brown
- Virology Department, Animal and Plant Health Agency (APHA-Weybridge), Addlestone, Surrey KT15 3NB, United Kingdom
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20
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Chen LJ, Wang S, Wilson LB, Schwartz S, Bessho N, Moore T, Gershman D, Giles B, Malaspina D, Wilder FD, Ergun RE, Hesse M, Lai H, Russell C, Strangeway R, Torbert RB, F-Vinas A, Burch J, Lee S, Pollock C, Dorelli J, Paterson W, Ahmadi N, Goodrich K, Lavraud B, Le Contel O, Khotyaintsev YV, Lindqvist PA, Boardsen S, Wei H, Le A, Avanov L. Electron Bulk Acceleration and Thermalization at Earth's Quasiperpendicular Bow Shock. Phys Rev Lett 2018; 120:225101. [PMID: 29906189 DOI: 10.1103/physrevlett.120.225101] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/25/2018] [Revised: 03/30/2018] [Indexed: 06/08/2023]
Abstract
Electron heating at Earth's quasiperpendicular bow shock has been surmised to be due to the combined effects of a quasistatic electric potential and scattering through wave-particle interaction. Here we report the observation of electron distribution functions indicating a new electron heating process occurring at the leading edge of the shock front. Incident solar wind electrons are accelerated parallel to the magnetic field toward downstream, reaching an electron-ion relative drift speed exceeding the electron thermal speed. The bulk acceleration is associated with an electric field pulse embedded in a whistler-mode wave. The high electron-ion relative drift is relaxed primarily through a nonlinear current-driven instability. The relaxed distributions contain a beam traveling toward the shock as a remnant of the accelerated electrons. Similar distribution functions prevail throughout the shock transition layer, suggesting that the observed acceleration and thermalization is essential to the cross-shock electron heating.
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Affiliation(s)
- L-J Chen
- NASA, Goddard Space Flight Center, Greenbelt, Maryland 20771, USA
- Department of Astronomy, University of Maryland, College Park, Maryland 20747, USA
| | - S Wang
- NASA, Goddard Space Flight Center, Greenbelt, Maryland 20771, USA
- Department of Astronomy, University of Maryland, College Park, Maryland 20747, USA
| | - L B Wilson
- NASA, Goddard Space Flight Center, Greenbelt, Maryland 20771, USA
| | - S Schwartz
- Laboratory for Atmospheric and Space Physics, University of Colorado, Boulder, Colorado 80305, USA
| | - N Bessho
- NASA, Goddard Space Flight Center, Greenbelt, Maryland 20771, USA
- Department of Astronomy, University of Maryland, College Park, Maryland 20747, USA
| | - T Moore
- NASA, Goddard Space Flight Center, Greenbelt, Maryland 20771, USA
| | - D Gershman
- NASA, Goddard Space Flight Center, Greenbelt, Maryland 20771, USA
| | - B Giles
- NASA, Goddard Space Flight Center, Greenbelt, Maryland 20771, USA
| | - D Malaspina
- Laboratory for Atmospheric and Space Physics, University of Colorado, Boulder, Colorado 80305, USA
| | - F D Wilder
- Laboratory for Atmospheric and Space Physics, University of Colorado, Boulder, Colorado 80305, USA
| | - R E Ergun
- Laboratory for Atmospheric and Space Physics, University of Colorado, Boulder, Colorado 80305, USA
| | - M Hesse
- University of Bergen, Bergen 5020, Norway
| | - H Lai
- University of California, Los Angeles, Los Angeles, California 90095, USA
| | - C Russell
- University of California, Los Angeles, Los Angeles, California 90095, USA
| | - R Strangeway
- University of California, Los Angeles, Los Angeles, California 90095, USA
| | - R B Torbert
- Southwest Research Institute, San Antonio, Texas 78238, USA
| | - A F-Vinas
- NASA, Goddard Space Flight Center, Greenbelt, Maryland 20771, USA
| | - J Burch
- Southwest Research Institute, San Antonio, Texas 78238, USA
| | - S Lee
- NASA, Goddard Space Flight Center, Greenbelt, Maryland 20771, USA
| | - C Pollock
- Denali Scientific, Healy, Alaska 99743, USA
| | - J Dorelli
- NASA, Goddard Space Flight Center, Greenbelt, Maryland 20771, USA
| | - W Paterson
- NASA, Goddard Space Flight Center, Greenbelt, Maryland 20771, USA
| | - N Ahmadi
- Laboratory for Atmospheric and Space Physics, University of Colorado, Boulder, Colorado 80305, USA
| | - K Goodrich
- Laboratory for Atmospheric and Space Physics, University of Colorado, Boulder, Colorado 80305, USA
| | - B Lavraud
- Institut de Recherche en Astrophysique et Planétologie, Université de Toulouse (UPS), CNRS, CNES, Toulouse, 31028 Cedex 4, France
| | - O Le Contel
- Laboratoire de Physique des Plasmas (UMR7648), CNRS/Ecole Polytechnique/Sorbonne Université/Univ. Paris Sud/Observatoire de Paris, Paris, F91128 Palaiseau Cedex, France
| | | | - P-A Lindqvist
- KTH Royal Institute of Technology, Stockholm SE-11428, Sweden
| | - S Boardsen
- NASA, Goddard Space Flight Center, Greenbelt, Maryland 20771, USA
- Department of Astronomy, University of Maryland, College Park, Maryland 20747, USA
| | - H Wei
- University of California, Los Angeles, Los Angeles, California 90095, USA
| | - A Le
- Los Alamos National Laboratory, Los Alamos, New Mexico 87545, USA
| | - L Avanov
- NASA, Goddard Space Flight Center, Greenbelt, Maryland 20771, USA
- Department of Astronomy, University of Maryland, College Park, Maryland 20747, USA
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Russell C, Mack H, Paul S, Senthi S. OC-0190: Surface guided radiation therapy for breast cancer improves accuracy without the need for skin marks. Radiother Oncol 2018. [DOI: 10.1016/s0167-8140(18)30500-0] [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: 10/14/2022]
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Russell C, Pedoia V, Souza R, Majumdar S. Cross-sectional and longitudinal study of the impact of posterior meniscus horn lesions on adjacent cartilage composition, patient-reported outcomes and gait biomechanics in subjects without radiographic osteoarthritis. Osteoarthritis Cartilage 2017; 25:708-717. [PMID: 27838383 PMCID: PMC7263373 DOI: 10.1016/j.joca.2016.10.025] [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] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/21/2016] [Revised: 10/03/2016] [Accepted: 10/31/2016] [Indexed: 02/02/2023]
Abstract
OBJECTIVE The aim of this study was to assess cross-sectional and longitudinal effects of meniscal lesions on adjacent cartilage T1ρ and T2 relaxation times, patient-reported outcomes and gait biomechanics. DESIGN Thirty patients with no cartilage morphological defects reported by Whole Organ MRI Score (WORMS) magnetic resonance imaging (MRI) grading and no radiographic osteoarthritis (OA) (Kellgren--Lawrence (KL) ≤ 1) were selected, 15 with posterior meniscus horn lesions and 15 matched controls without meniscal lesions. All were imaged on a 3T MR scanner for three consecutive years, except those who dropped from the study. Sagittal and frontal plane kinematic gait data were acquired at baseline. The Knee Injury and Osteoarthritis Outcome Score (KOOS) survey was taken each time. All images were automatically segmented and registered to an atlas for voxel-by-voxel cross-sectional and longitudinal analyses. RESULTS Relaxation time comparisons between groups showed elevated T1ρ of the lateral tibia (LP) and elevated T2 of the medial tibia (MT) and LT at 1 and 2 years in the lesion group. Longitudinal comparisons within each group revealed greater relaxation time elevations over one and 2 years in the group with lesions. KOOS Quality of Life (QOL) was significantly different between the groups at all time points (P < 0.05), as were other KOOS subcategories. No significant differences in the frontal or sagittal biomechanics were observed between the groups at baseline. CONCLUSIONS Individuals with healthy cartilage and posterior meniscal horn lesions have increased relaxation times when compared to matched controls, increased relaxation time changes over 2 years, and consistently report a lower KOOS QOL, yet show no difference in gait biomechanics.
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Affiliation(s)
- C. Russell
- Musculoskeletal Quantitative Imaging Research, Department of Radiology and Biomedical Imaging, University of California, San Francisco, San Francisco, CA, USA
| | - V. Pedoia
- Musculoskeletal Quantitative Imaging Research, Department of Radiology and Biomedical Imaging, University of California, San Francisco, San Francisco, CA, USA
| | - R.B. Souza
- Musculoskeletal Quantitative Imaging Research, Department of Radiology and Biomedical Imaging, University of California, San Francisco, San Francisco, CA, USA,Department of Physical Therapy, University of California, San Francisco, San Francisco, CA, USA
| | - S. Majumdar
- Musculoskeletal Quantitative Imaging Research, Department of Radiology and Biomedical Imaging, University of California, San Francisco, San Francisco, CA, USA,Address correspondence and reprint requests to: S. Majumdar, Musculoskeletal Quantitative Imaging Research, Department of Radiology and Biomedical Imaging, University of California, San Francisco, 1700 4th Street, Suite 203, San Francisco, CA 94158, USA. Fax: 1-(415)-353-9423. (C. Russell)
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Amano K, Li AK, Pedoia V, Koff MF, Krych AJ, Link TM, Potter H, Rodeo S, Li X, Ma CB, Majumdar S, Goldring M, Hannafin JA, Marx RG, Nawabi DH, Otero M, Shah P, Warren RF, Amrami KK, Felmlee JP, Frick MA, Stuart MJ, Williams SL, Kretzchmar M, Lansdown DA, Okazaki N, Russell C, Savic D, Schwaiger B, Su F, Wyatt C, Cheong M, Hardin JA. Effects of Surgical Factors on Cartilage Can Be Detected Using Quantitative Magnetic Resonance Imaging After Anterior Cruciate Ligament Reconstruction. Am J Sports Med 2017; 45:1075-1084. [PMID: 28768432 DOI: 10.1177/0363546516677794] [Citation(s) in RCA: 12] [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] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/31/2023]
Abstract
BACKGROUND Quantitative magnetic resonance (qMR) can be used to measure macromolecules in tissues and is a potential method of observing early cartilage changes in the development of posttraumatic osteoarthritis. Hypothesis/Purpose: We hypothesized that specific patient and surgical factors affecting cartilage matrix composition after anterior cruciate ligament (ACL) reconstruction (ACLR) can be detected using T1ρ and T2 relaxation times. Our purpose was to demonstrate this ability in a multicenter feasibility study. STUDY DESIGN Case series; Level of evidence, 4. METHODS A total of 54 patients who underwent ACLR underwent bilateral MRI at baseline before surgery and 6 months postoperatively. Operative findings were recorded. T1ρ and T2 relaxation times were calculated for 6 cartilage regions: the medial femur, lateral femur, medial tibia, lateral tibia, patella, and trochlea. A paired t test compared relaxation times at baseline and 6 months, univariate regression identified regions that influenced patient-reported outcome measures, and analysis of covariance was used to determine the surgical factors that resulted in elevated relaxation times at 6 months. RESULTS The injured knee had significantly prolonged T1ρ and T2 relaxation times in the tibiofemoral compartment at baseline and 6 months but had shorter values in the patellofemoral compartment compared with the uninjured knee. Prolonged T1ρ and T2 times at 6 months were noted for both the injured and uninjured knees. At 6 months, prolongation of T1ρ and T2 times in the tibial region was associated with lower patient-reported outcome measures. ACLR performed within 30 days of injury had significantly shorter T1ρ times in the tibial regions, and lateral meniscal tears treated with repair had significantly shorter T1ρ times than those treated with excision. CONCLUSION Prolonged relaxation times in multiple regions demonstrate how the injury affects the entire joint after an ACL tear. Changes observed in the uninjured knee may be caused by increased loading during rehabilitation, especially in the patellofemoral articular cartilage and distal femur. Relaxation times in the tibial regions may be predictive of patient symptoms at 6 months. These same regions are affected by surgical timing as early as 30 days after injury, but this may partially be reflective of the severity of the preoperative injury and the choice of treatment of meniscal tears.
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Affiliation(s)
- Keiko Amano
- Department of Orthopaedic Surgery, University of California, San Francisco, San Francisco, California, USA
| | - Alan K Li
- University of California, Berkeley, Berkeley, California, USA
| | - Valentina Pedoia
- Department of Radiology and Biomedical Imaging, University of California, San Francisco, San Francisco, California, USA
| | - Matthew F Koff
- Department of Radiology and Imaging, Hospital for Special Surgery, New York, New York, USA.,Weill Cornell Medical College, Cornell University, New York, New York, USA
| | | | - Thomas M Link
- Department of Radiology and Biomedical Imaging, University of California, San Francisco, San Francisco, California, USA
| | - Hollis Potter
- Department of Radiology and Imaging, Hospital for Special Surgery, New York, New York, USA.,Weill Cornell Medical College, Cornell University, New York, New York, USA
| | - Scott Rodeo
- Weill Cornell Medical College, Cornell University, New York, New York, USA.,Sports Medicine and Shoulder Service, Hospital for Special Surgery, New York, New York, USA
| | - Xiaojuan Li
- Department of Radiology and Biomedical Imaging, University of California, San Francisco, San Francisco, California, USA
| | - C Benjamin Ma
- Department of Orthopaedic Surgery, University of California, San Francisco, San Francisco, California, USA
| | - Sharmila Majumdar
- Department of Orthopaedic Surgery, University of California, San Francisco, San Francisco, California, USA.,Department of Radiology and Biomedical Imaging, University of California, San Francisco, San Francisco, California, USA.,Department of Bioengineering, University of California, Berkeley, Berkeley, California, USA
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- All members are listed in the Contributing Authors section at the end of this article
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Russell C, Pedoia V, Majumdar S. Composite metric R 2 - R 1ρ (1/T 2 - 1/T 1ρ ) as a potential MR imaging biomarker associated with changes in pain after ACL reconstruction: A six-month follow-up. J Orthop Res 2017; 35:718-729. [PMID: 27563836 PMCID: PMC7021321 DOI: 10.1002/jor.23400] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.1] [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: 05/04/2016] [Accepted: 08/25/2016] [Indexed: 02/04/2023]
Abstract
This study looked to investigate a new quantitative metric, R2 - R1ρ (1/T2 - 1/T1ρ ), using magnetic resonance (MR) images and voxel-based relaxometry (VBR) for detecting early cartilage degeneration and explore the association with patient-reported outcomes measures (PROMs) in patients 6 months after ACL reconstruction. Sixty-four patients from three sites were bilaterally scanned on a 3T MR with a combined T1ρ /T2 protocol to calculate R1ρ (1/T1ρ ) and R2 (1/T2 ) values at baseline and 6 months after reconstructive surgery. Non-rigid registration was applied to align images onto a template, allowing VBR to determine VBR rate differences and explore cross-sectional and longitudinal differences between injured and uninjured knees, generating Statistical Parametric Maps (SPMs). Baseline R2 - R1ρ differences were further correlated with change in PROMs from the Knee Injury and Osteoarthritis Outcome Score (KOOS) from baseline to 6 months. Cross-sectional results demonstrated low relaxation rate differences in the injured patella (baseline: 21%, p = 0.01; 6-months: 18%, p = 0.02), lateral tibia (baseline: 25%, p = 0.01; 6-months: 24%, p = 0.01), and weight-bearing regions of the tibia and femur. The uninjured patella showed significant longitudinal changes (17%, p = 0.02). R2 - R1ρ differences showed significant correlations with KOOS PROMs, particularly in the lateral tibia, patella, and trochlea. R2 - R1ρ difference VBR analyses provide new and highly sensitive parameters for assessing early cartilage degeneration in patients after ACL injury by integrating findings from both T1ρ and T2 , commonly used relaxation time parameters, into a single metric. © 2016 Orthopaedic Research Society. Published by Wiley Periodicals, Inc. J Orthop Res 35:718-729, 2017.
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Affiliation(s)
- Colin Russell
- Musculoskeletal Quantitative Imaging Research Group, Department of Radiology and Biomedical Imaging; University of California; San Francisco California
| | - Valentina Pedoia
- Musculoskeletal Quantitative Imaging Research Group, Department of Radiology and Biomedical Imaging; University of California; San Francisco California
| | - Sharmila Majumdar
- Musculoskeletal Quantitative Imaging Research Group, Department of Radiology and Biomedical Imaging; University of California; San Francisco California
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Russell C, Pedoia V, Amano K, Potter H, Majumdar S. Baseline cartilage quality is associated with voxel-based T 1ρ and T 2 following ACL reconstruction: A multicenter pilot study. J Orthop Res 2017; 35:688-698. [PMID: 27138363 PMCID: PMC6860012 DOI: 10.1002/jor.23277] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.1] [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: 03/14/2016] [Accepted: 04/25/2016] [Indexed: 02/04/2023]
Abstract
In this multi-center study, voxel-based relaxometry (VBR), a novel technique to automatically quantify localized cartilage change, was used to investigate T1ρ and T2 relaxation times of patients with anterior cruciate ligament (ACL) tears at the time of injury and 6 months after reconstructive surgery. Sixty-four ACL-injured patients from three sites underwent bilateral 3T MR T1ρ and T2 mapping; 56 patients returned 6 months after surgery. Cross-sectional and longitudinal VBR comparisons of relaxation times were calculated. Noyes Score (NS) clinical grades of cartilage lesions were noted at both times and correlated with relaxation times. Lastly, patients were divided into two groups based on baseline NS grades in the injured knee. T1ρ times of each group were assessed with VBR and compared. Results illustrate the feasibility of VBR for efficiently analyzing data from patients at different sites. Significant relaxation time elevations at baseline were observed in the injured knee compared to the uninjured, particularly in the posterolateral tibia (pLT). Longitudinally, a decrease was observed in the pLT and patella, while an increase was noted in the trochlea. Stratifying patients by baseline lesion presence revealed T1ρ increased more 6 months after surgery in patients with lesions. Such findings propose that the presence of cartilage lesions at baseline are associated with the longitudinal progression of T1ρ and T2 after ACL injury, and may contribute to early cartilage degeneration. Furthermore, the speed and localized specificity of automatic VBR analysis may translate well for clinical application, as seen in this multicenter study. © 2016 Orthopaedic Research Society. Published by Wiley Periodicals, Inc. J Orthop Res 35:688-698, 2017.
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Affiliation(s)
- Colin Russell
- Department of Radiology and Biomedical Imaging, Musculoskeletal Quantitative Imaging Research, University of California, California
| | - Valentina Pedoia
- Department of Radiology and Biomedical Imaging, Musculoskeletal Quantitative Imaging Research, University of California, California
| | - Keiko Amano
- Deparment of Orthopaedic Surgery, University of California, San Francisco, California
| | - Hollis Potter
- Department of Radiology, Hospital for Special Surgery, New York City, New York
| | - Sharmila Majumdar
- Department of Radiology and Biomedical Imaging, Musculoskeletal Quantitative Imaging Research, University of California, California
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Khurana RK, Russell C. The spoon test: a valid and reliable bedside test to assess sudomotor function. Clin Auton Res 2017; 27:91-95. [PMID: 28188384 DOI: 10.1007/s10286-017-0401-2] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/06/2016] [Accepted: 01/24/2017] [Indexed: 11/28/2022]
Abstract
OBJECTIVE To establish the validity of bedside sudomotor tests in a controlled prospective study. METHODS Five different tests were used to assess presence of sweating at seven bilaterally symmetrical body loci, namely, examination with the unaided eye, visualization with light reflection, magnification with an ophthalmoscope, palpation of skin for slickness, and gliding the back of a spoon over the skin to detect friction. Sensitivity and specificity of these bedside tests were compared with the thermoregulatory sweat test in 130 subjects with generalized body sweating and 16 patients with complete anhidrosis. RESULTS The spoon test was more sensitive in detecting sweating than the other four bedside tests, demonstrating sensitivity of about 86% at the neck, 58% at the chest, and 51% at the forehead. Specificity of the spoon test was almost 100% at all body sites except at the chest (81%) and the neck (50%). INTERPRETATION With caveats related to methodology, the spoon test is a clinically practical and useful bedside screening test for the assessment of sweating, especially at the forehead and chest.
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Affiliation(s)
- Ramesh K Khurana
- Department of Medicine, MedStar Union Memorial Hospital, 201 East University Parkway, Baltimore, MD, 21218, USA.
| | - Colin Russell
- Department of Medicine, MedStar Union Memorial Hospital, 201 East University Parkway, Baltimore, MD, 21218, USA
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Peck M, Breen A, Jones N, Orme R, Russell C. Focused intensive care echocardiography: 1000 participating, 300 accredited and counting. J Intensive Care Soc 2017; 18:74-75. [PMID: 28979544 DOI: 10.1177/1751143716662056] [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: 11/17/2022] Open
Affiliation(s)
- Mje Peck
- Frimley Park Hospital, Frimley, UK
| | - A Breen
- Leeds Teaching Hospitals NHS Trust, Leeds, UK
| | - N Jones
- Papworth Hospital NHS Foundation Trust, Cambridge, UK
| | - Rmle Orme
- Gloucestershire Hospitals NHS Foundation Trust, Cheltenham General Hospital, Cheltenham, UK
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Pedoia V, Russell C, Randolph A, Li X, Majumdar S. Principal component analysis-T 1ρ voxel based relaxometry of the articular cartilage: a comparison of biochemical patterns in osteoarthritis and anterior cruciate ligament subjects. Quant Imaging Med Surg 2016; 6:623-633. [PMID: 28090441 DOI: 10.21037/qims.2016.11.03] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
Abstract
BACKGROUND Quantitative MR, including T1ρ mapping, has been extensively used to probe early biochemical changes in knee articular cartilage of subjects with osteoarthritis (OA) and others at risk for cartilage degeneration, such as those with anterior cruciate ligament (ACL) injury and reconstruction. However, limited studies have been performed aimed to assess the spatial location and patterns of T1ρ. In this study we used a novel voxel-based relaxometry (VBR) technique coupled with principal component analysis (PCA) to extract relevant features so as to describe regional patterns and to investigate their similarities and differences in T1ρ maps in subjects with OA and subjects six months after ACL reconstruction (ACLR). METHODS T1ρ quantitative MRI images were collected for 180 subjects from two separate cohorts. The OA cohort included 93 osteoarthritic patients and 25 age-matched controls. The ACLR-6M cohort included 52 patients with unilateral ACL tears who were imaged 6 months after ACL reconstruction, and 10 age-matched controls. Non-rigid registration on a single template and local Z-score conversion were adopted for T1ρ spatial and intensity normalization of all the images in the dataset. PCA was used as a data dimensionality reduction to obtain a description of all subjects in a 10-dimensional feature space. Logistic linear regression was used to identify distinctive features of OA and ACL subjects. RESULTS Global prolongation of the Z-score was observed in both OA and ACL subjects compared to controls [higher values in 1st principal component (PC1); P=0.01]. In addition, relaxation time differences between superficial and deep cartilage layers of the lateral tibia and trochlea were observed to be significant distinctive features between OA and ACL subjects. OA subjects demonstrated similar values between the two cartilage layers [higher value in 2nd principal component (PC2); P=0.008], while ACL reconstructed subjects showed T1ρ prolongation specifically in the cartilage superficial layer (lower values in PC2; P<0.0001). T1ρ elevation located outside of the weight-bearing area, located in the posterior and anterior aspects of the lateral femoral compartment, was also observed to be a key feature in distinguishing OA subjects from controls [higher value in 6th principal component (PC6); P=0.007]. CONCLUSIONS This study is the first example of T1ρ local/regional pattern analysis and data-driven feature extraction in knees with cartilage degeneration. Our results revealed similarities and differences between OA and ACL relaxation patterns that could be potentially useful to better understand the pathogenesis of post-traumatic cartilage degeneration and the identification of imaging biomarkers for the early stratification of subjects at risk for developing post-traumatic OA.
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Affiliation(s)
- Valentina Pedoia
- Department of Radiology and Biomedical Imaging, University of California, San Francisco, CA, USA
| | - Colin Russell
- Department of Radiology and Biomedical Imaging, University of California, San Francisco, CA, USA
| | - Allison Randolph
- Department of Radiology and Biomedical Imaging, University of California, San Francisco, CA, USA
| | - Xiaojuan Li
- Department of Radiology and Biomedical Imaging, University of California, San Francisco, CA, USA
| | - Sharmila Majumdar
- Department of Radiology and Biomedical Imaging, University of California, San Francisco, CA, USA
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Chapoton B, Russell C, Régnier-Denois V. Médias, adolescents et alcool : quelle(s) représentation(s) ? Rev Epidemiol Sante Publique 2016. [DOI: 10.1016/j.respe.2016.06.080] [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: 11/16/2022] Open
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Krishnan AR, Wong G, Chapman JR, Coates PT, Russ GR, Pleass H, Russell C, He B, Lim WH. Prolonged Ischemic Time, Delayed Graft Function, and Graft and Patient Outcomes in Live Donor Kidney Transplant Recipients. Am J Transplant 2016; 16:2714-23. [PMID: 27037866 DOI: 10.1111/ajt.13817] [Citation(s) in RCA: 28] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/13/2015] [Revised: 02/22/2016] [Accepted: 03/24/2016] [Indexed: 01/25/2023]
Abstract
The association between prolonged cold ischemic time (CIT) and graft and patient outcomes in live donor kidney transplant recipients remains unclear. The aims of this study were to examine the association of CIT with delayed graft function and graft loss in live donor kidney transplant recipients and those who participated in the Australian Paired Kidney Exchange program using data from the Australia and New Zealand Dialysis and Transplant (ANZDATA) registry. Of 3717 live donor transplant recipients between 1997 and 2012 who were followed for a median of 6.6 years (25 977 person-years), 224 (25%) experienced CIT >4-8 h. Donor age was an effect modifier between CIT and graft outcomes. In recipients who received kidneys from older donors aged >50 years, every hour of increase in CIT was associated with adjusted odds of 1.28 (95% confidence interval [CI] 1.07-1.53, p = 0.007) for delayed graft function, whereas CIT >4-8 h was associated with adjusted hazards of 1.93 (95% CI 1.21-3.09, p = 0.006) and 1.91 (95% CI 1.05-3.49, p = 0.035) for overall and death-censored graft loss, respectively, compared with CIT of 1-2 h. Attempts to reduce CIT in live donor kidney transplants involving older donor kidneys may lead to improvement of graft outcomes.
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Affiliation(s)
- A R Krishnan
- Department of Renal Medicine, Sir Charles Gairdner Hospital, Western Australia, Australia
| | - G Wong
- Australia and New Zealand Dialysis and Transplant Registry, South Australia, Australia.,Centre for Transplant and Renal Research, Westmead Hospital, New South Wales, Australia.,Centre for Kidney Research, The Children's Hospital at Westmead, New South Wales, Australia.,Sydney School of Public Health, University of Sydney, New South Wales, Australia
| | - J R Chapman
- Centre for Transplant and Renal Research, Westmead Hospital, New South Wales, Australia
| | - P T Coates
- Central and Northern Adelaide Renal and Transplantation Services, South Australia, Australia
| | - G R Russ
- Australia and New Zealand Dialysis and Transplant Registry, South Australia, Australia.,Central and Northern Adelaide Renal and Transplantation Services, South Australia, Australia
| | - H Pleass
- Centre for Transplant and Renal Research, Westmead Hospital, New South Wales, Australia
| | - C Russell
- Central and Northern Adelaide Renal and Transplantation Services, South Australia, Australia
| | - B He
- Department of Renal Medicine, Sir Charles Gairdner Hospital, Western Australia, Australia
| | - W H Lim
- Department of Renal Medicine, Sir Charles Gairdner Hospital, Western Australia, Australia.,Australia and New Zealand Dialysis and Transplant Registry, South Australia, Australia
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Adams J, Lowe W, Armstrong R, Russell C, Lueddeke J, Protheroe J, McCaffery K, Nutbeam D, Ballinger C. AB1118-HPR Health Professionals' (HPS) Perspectives When Working with People with Rheumatological & Musculoskeletal Disorders (RMDS) and Lower Levels of Health Literacy: A Qualitative Focus Group Study. Ann Rheum Dis 2016. [DOI: 10.1136/annrheumdis-2016-eular.3551] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
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Olgiati E, Russell C, Soto D, Malhotra P. Motivation and attention following hemispheric stroke. PROGRESS IN BRAIN RESEARCH 2016; 229:343-366. [DOI: 10.1016/bs.pbr.2016.06.011] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 03/28/2023]
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Russell C, Cruz Y, Bollard C. Adoptive Immunotherapy for Leukemia with Ex Vivo Expanded T Cells. Curr Drug Targets 2015. [DOI: 10.2174/1389450117666151209120655] [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: 11/22/2022]
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Lamanna J, Trapp S, Russell C, Stern M. Preparing for the future: An examination of healthcare provider and patient communication regarding childhood cancer survivorship. Child Care Health Dev 2015; 41:1047-56. [PMID: 25338746 DOI: 10.1111/cch.12210] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Accepted: 09/21/2014] [Indexed: 11/30/2022]
Abstract
BACKGROUND This qualitative, exploratory study examines the content of communication between healthcare providers (HCP) and childhood cancer patients (CCP) during a medical appointment to evaluate the extent to which cancer survivorship issues (medical and psychosocial) are discussed. METHODS The content of the communication for 16 CCP ages 10-22 and their HCP were examined via audio recorded medical appointments occurring within 6 months of the end of active cancer treatment. The data were analysed using template analysis, a constructivist-interpretivist qualitative approach. RESULTS HCP addressed more medically focused than psychosocially focused issues related to survivorship. CONCLUSIONS Most discussions of survivorship are medically focused, potentially leaving patients with little information about future psychosocial functioning. Recommendations for future research on enhancing discussions about psychosocial issues are presented. This research has the potential to inform future interventions to enhance patient-provider communication on survivorship issues.
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Affiliation(s)
- J Lamanna
- Department of Psychology, Virginia Commonwealth University, Richmond, VA, USA
| | - S Trapp
- Department of Psychology, Virginia Commonwealth University, Richmond, VA, USA
| | - C Russell
- Department of Psychology, Virginia Commonwealth University, Richmond, VA, USA
| | - M Stern
- Department of Psychology, Virginia Commonwealth University, Richmond, VA, USA
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Rudenko L, Sellwood C, Russell C, Herfst S, Gross D, Dingwall R. Will there ever be a new influenza pandemic and are we prepared? Vaccine 2015; 33:7037-40. [PMID: 26413881 DOI: 10.1016/j.vaccine.2015.08.045] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/03/2015] [Revised: 08/06/2015] [Accepted: 08/07/2015] [Indexed: 11/30/2022]
Affiliation(s)
- Larisa Rudenko
- Dept. of Virology, Institute of Experimental Medicine, akad. Pavlov str., 12, 197376 St. Petersburg, Russia.
| | | | | | | | - Diane Gross
- World Health Organization Europe, Copenhagen, Denmark
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Ogden NH, Koffi JK, Lindsay LR, Fleming S, Mombourquette DC, Sanford C, Badcock J, Gad RR, Jain-Sheehan N, Moore S, Russell C, Hobbs L, Baydack R, Graham-Derham S, Lachance L, Simmonds K, Scott AN. Surveillance for Lyme disease in Canada, 2009 to 2012. Can Commun Dis Rep 2015; 41:132-145. [PMID: 29769945 PMCID: PMC5933887 DOI: 10.14745/ccdr.v41i06a03] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Abstract
OBJECTIVES To summarize the first four years of national surveillance for Lyme disease in Canada from 2009 to 2012 and to conduct a preliminary comparison of presenting clinical manifestations in Canada and the United States. METHODS The numbers and incidence of reported cases by province, month, year, age and sex were calculated. Logistic regression was used to examine trends over time. Acquisition locations were mapped and presenting clinical manifestations reported for jurisdictions where data was available. Variations by province, year, age and sex as well as presenting clinical symptoms were explored by logistic regression. An initial comparative analysis was made of presenting symptoms in Canada and the United States. RESULTS The numbers of reported cases rose significantly from 144 in 2009 to 338 in 2012 (coefficient = 0.34, standard error = 0.07, P <0.05), mostly due to an increased incidence of infections acquired in Canada. More cases were classified as 'confirmed' (71.5%) than 'probable' (28.5%). Most cases occurred in locations where vector tick populations were known to be present. More men than women were affected (53.4% versus 46.6%), incidence was highest in adults aged 55 to 74 years and in children aged five to 14 years. Most cases (95%) were acquired from April to November. Of cases acquired in endemic areas, 39.7% presented with manifestations of early Lyme disease, while 60.3% had manifestations of disseminated Lyme disease. There were significant differences among age groups, sexes and provinces in the frequencies of reported clinical manifestations. The proportion of cases acquired in endemic areas presenting with early Lyme disease was lower than that reported in the US. CONCLUSION Lyme disease incidence is increasing in Canada. Most cases are acquired where vector tick populations are spreading and this varies geographically within and among provinces. There is also variation in the frequency of age, season and presenting manifestations. The lower proportion of cases presenting with early Lyme disease in Canada compared with the US suggests lower awareness of early Lyme disease in Canada, but this requires further study.
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Affiliation(s)
- NH Ogden
- Centre for Food-borne, Environmental and Zoonotic Infectious Diseases, Public Health Agency of Canada, Ottawa, ON
| | - JK Koffi
- Centre for Food-borne, Environmental and Zoonotic Infectious Diseases, Public Health Agency of Canada, Ottawa, ON
| | - LR Lindsay
- National Microbiology Laboratory, Public Health Agency of Canada, Winnipeg, MB
| | - S Fleming
- Public Health Branch, Nova Scotia Department of Health and Wellness, Halifax, NS
| | - DC Mombourquette
- Public Health Branch, Nova Scotia Department of Health and Wellness, Halifax, NS
| | - C Sanford
- Population Health Assessment and Surveillance, Prince Edward Island Department of Health and Wellness, Charlottetown, PE
| | - J Badcock
- Office of the Chief Medical Officer of Health, New Brunswick Department of Health, NB
| | - RR Gad
- Office of the Chief Medical Officer of Health, New Brunswick Department of Health, NB
| | - N Jain-Sheehan
- Enteric, Zoonotic and Vector-Borne Diseases, Public Health Ontario, Toronto, ON
| | - S Moore
- Enteric, Zoonotic and Vector-Borne Diseases, Public Health Ontario, Toronto, ON
| | - C Russell
- Enteric, Zoonotic and Vector-Borne Diseases, Public Health Ontario, Toronto, ON
| | - L Hobbs
- Enteric, Zoonotic and Vector-Borne Diseases, Public Health Ontario, Toronto, ON
| | - R Baydack
- Communicable Disease Control Branch, Manitoba Health Healthy Living and Seniors, Winnipeg, MB
| | - S Graham-Derham
- Communicable Disease Control Branch, Manitoba Health Healthy Living and Seniors, Winnipeg, MB
| | - L Lachance
- Surveillance and Assessment Branch, Alberta Health, Calgary, AB
| | - K Simmonds
- Surveillance and Assessment Branch, Alberta Health, Calgary, AB
| | - AN Scott
- Surveillance and Assessment Branch, Alberta Health, Calgary, AB
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Scalso de Almeida S, Berben L, Baumgartner E, Denhaerynck K, Dobbels F, Russell C, De Geest S. Variability in Health Care Workers’ Practice Patterns and Heart Transplant Patients’ Medication Adherence Across 11 Countries -The BRIGHT Study. J Heart Lung Transplant 2015. [DOI: 10.1016/j.healun.2015.01.650] [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: 11/24/2022] Open
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Teh H, Phillips S, Russell C, Wilding M, Ghafoor Q. 104: An assessment of patient and doctor views of performance status in outpatient lung cancer patients. Lung Cancer 2015. [DOI: 10.1016/s0169-5002(15)50099-8] [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: 11/15/2022]
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Devlin M, Holmes K, Russell C, Ray A, Handley T. The impact of a cleft interface training on unit outcomes in primary palate surgery: post repair fistula rates. Br J Oral Maxillofac Surg 2014. [DOI: 10.1016/j.bjoms.2014.07.029] [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]
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Russell C, Papadopoulos E, Mezil Y, Wells GD, Plyley MJ, Greenway M, Klentrou P. Acute versus chronic supplementation of sodium citrate on 200 m performance in adolescent swimmers. J Int Soc Sports Nutr 2014; 11:26. [PMID: 24944546 PMCID: PMC4061773 DOI: 10.1186/1550-2783-11-26] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.0] [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] [Received: 03/06/2014] [Accepted: 06/05/2014] [Indexed: 11/10/2022] Open
Abstract
BACKGROUND A double-blinded, placebo-controlled, cross-over design was used to investigate whether two different sodium citrate dihydrate (Na-CIT) supplementation protocols improve 200 m swimming performance in adolescent swimmers. METHODS Ten, male swimmers (14.9 ± 0.4 years of age; 63.5 ± 4 kg) performed four 200 m time trials with the following treatments: acute (ACU) supplementation (0.5 g kg(-1) administered 120 min pre-trial), acute placebo (PLC-A), chronic (CHR) supplementation (0.1 g∙kg(-1) for three days and 0.3 g kg(-1) on the forth day 120 min pre-trial), and chronic placebo (PLC-C). The order of the trials was randomized, with at least a six-day wash-out period between trials. Blood samples were collected by finger prick pre-ingestion, 100 min post-ingestion, and 3 min post-trial. Performance time, rate of perceived exertion, pH, base excess, bicarbonate and lactate concentration were measured. RESULTS Post-ingestion bicarbonate and base excess were higher (P < 0.05) in both the ACU and CHR trials compared to placebo showing adequate pre-exercise alkalosis. However, performance time, rate of perceived exertion as well as post-trial pH and lactate concentration were not significantly different between trials. Further analysis revealed that five swimmers, identified as responders, improved their performance time by 1.03% (P < 0.05) and attained higher post-trial lactate concentrations in the ACU versus PLC-A trial (P < 0.05). They also had significantly higher post-trial lactate concentrations compared to the non-responders in the ACU and CHR trials. CONCLUSIONS Acute supplementation of Na-CIT prior to 200 m swimming performance led to a modest time improvement and higher blood lactate concentrations in only half of the swimmers while the chronic Na-CIT supplementation did not provide any ergogenic effect in this group of adolescent swimmers. TRIAL REGISTRATION Clinicaltrials.gov NCT01835912.
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Affiliation(s)
- Colin Russell
- Department of Kinesiology, Faculty of Applied Health Sciences, Brock University, 500 Glenridge Av., St. Catharines, Ontario L2S 3A1, Canada
| | - Efthymios Papadopoulos
- Department of Kinesiology, Faculty of Applied Health Sciences, Brock University, 500 Glenridge Av., St. Catharines, Ontario L2S 3A1, Canada
| | - Yasmeen Mezil
- Department of Kinesiology, Faculty of Applied Health Sciences, Brock University, 500 Glenridge Av., St. Catharines, Ontario L2S 3A1, Canada
| | - Greg D Wells
- Faculty of Kinesiology and Physical Education, University of Toronto, 55 Harbord St., Toronto, Ontario M5S 2W6, Canada
| | - Michael J Plyley
- Department of Kinesiology, Faculty of Applied Health Sciences, Brock University, 500 Glenridge Av., St. Catharines, Ontario L2S 3A1, Canada
| | - Mathew Greenway
- Michael G. DeGroote School of Medicine, McMaster University, 500 Glenridge Av., St. Catharines, Ontario L2S 3A1, Canada
| | - Panagiota Klentrou
- Department of Kinesiology, Faculty of Applied Health Sciences, Brock University, 500 Glenridge Av., St. Catharines, Ontario L2S 3A1, Canada
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Barr IG, Russell C, Besselaar TG, Cox NJ, Daniels RS, Donis R, Engelhardt OG, Grohmann G, Itamura S, Kelso A, McCauley J, Odagiri T, Schultz-Cherry S, Shu Y, Smith D, Tashiro M, Wang D, Webby R, Xu X, Ye Z, Zhang W. WHO recommendations for the viruses used in the 2013-2014 Northern Hemisphere influenza vaccine: Epidemiology, antigenic and genetic characteristics of influenza A(H1N1)pdm09, A(H3N2) and B influenza viruses collected from October 2012 to January 2013. Vaccine 2014; 32:4713-25. [PMID: 24582632 DOI: 10.1016/j.vaccine.2014.02.014] [Citation(s) in RCA: 84] [Impact Index Per Article: 8.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/04/2013] [Revised: 01/28/2014] [Accepted: 02/07/2014] [Indexed: 11/28/2022]
Abstract
In February the World Health Organisation (WHO) recommends influenza viruses to be included in influenza vaccines for the forthcoming winter in the Northern Hemisphere. These recommendations are based on data collected by National Influenza Centres (NICs) through the WHO Global Influenza Surveillance and Response System (GISRS) and a more detailed analysis of representative and potential antigenically variant influenza viruses from the WHO Collaborating Centres for Influenza (WHO CCs) and Essential Regulatory Laboratories (ERLs). This article provides a detailed summary of the antigenic and genetic properties of viruses and additional background data used by WHO experts during development of the recommendations of the 2013-2014 Northern Hemisphere influenza vaccine composition.
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Affiliation(s)
- Ian G Barr
- WHO Collaborating Centre for Reference and Research on Influenza, Victorian Infectious Diseases Reference Laboratory (VIDRL), Melbourne, Australia.
| | | | | | - Nancy J Cox
- WHO Collaborating Centre for Surveillance, Epidemiology and Control of Influenza, Centers for Disease Control and Prevention, Atlanta, USA
| | - Rod S Daniels
- WHO Collaborating Centre for Reference and Research on Influenza, Medical Research Council - National Institute for Medical Research (NIMR), London, UK
| | - Ruben Donis
- WHO Collaborating Centre for Surveillance, Epidemiology and Control of Influenza, Centers for Disease Control and Prevention, Atlanta, USA
| | - Othmar G Engelhardt
- National Institute for Biological Standards and Control (NIBSC), Health Protection Agency (HPA), Potters Bar, UK
| | - Gary Grohmann
- Therapeutic Goods Administration (TGA), Canberra, Australia
| | - Shigeyuki Itamura
- WHO Collaborating Centre for Reference and Research on Influenza, National Institute of Infectious Diseases (NIID), Tokyo, Japan
| | - Anne Kelso
- WHO Collaborating Centre for Reference and Research on Influenza, Victorian Infectious Diseases Reference Laboratory (VIDRL), Melbourne, Australia
| | - John McCauley
- WHO Collaborating Centre for Reference and Research on Influenza, Medical Research Council - National Institute for Medical Research (NIMR), London, UK
| | - Takato Odagiri
- WHO Collaborating Centre for Reference and Research on Influenza, National Institute of Infectious Diseases (NIID), Tokyo, Japan
| | | | - Yuelong Shu
- WHO Collaborating Center for Reference and Research on Influenza, Chinese National Influenza Center (CNIC), Beijing, PR China
| | - Derek Smith
- Centre for Pathogen Evolution and WHOCC for Modelling Evolution and Control of Emerging Infectious Diseases, University of Cambridge, UK and Fogarty International Centre, National Institutes of Health (NIH), USA
| | - Masato Tashiro
- WHO Collaborating Centre for Reference and Research on Influenza, National Institute of Infectious Diseases (NIID), Tokyo, Japan
| | - Dayan Wang
- WHO Collaborating Center for Reference and Research on Influenza, Chinese National Influenza Center (CNIC), Beijing, PR China
| | | | - Xiyan Xu
- WHO Collaborating Centre for Surveillance, Epidemiology and Control of Influenza, Centers for Disease Control and Prevention, Atlanta, USA
| | - Zhiping Ye
- Food and Drug Administration (FDA), Center for Biologics Evaluation and Research (CBER), Bethesda, MD, USA
| | - Wenqing Zhang
- WHO Global Influenza Programme (GIP), Geneva, Switzerland
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Glück S, Russell C, O'Shaughnessy J, McKenna EF, Hu S, Odom D, Blum JL. Treatment effect of capecitabine and docetaxel or docetaxel alone by oestrogen receptor status in patients with metastatic breast cancer: results of an exploratory analysis. Breast 2013; 22:1087-93. [PMID: 24095220 DOI: 10.1016/j.breast.2013.08.016] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/29/2012] [Revised: 07/16/2013] [Accepted: 08/29/2013] [Indexed: 11/18/2022] Open
Abstract
We investigated treatment effects by oestrogen receptor (ER) status among women with metastatic breast cancer (MBC) receiving capecitabine (C) plus docetaxel (D) or D alone in a randomised phase III trial. Data were retrospectively analysed from patients whose disease had recurred following (neo)adjuvant anthracyclines. ER status was identified in 356/506 patients. In patients with ER-positive tumours, median overall survival from enrolment was 17.7 months with CD versus 12.5 months with D (hazard ratio [HR] 0.65, 95% confidence interval [CI]: 0.47-0.89; P = 0.007) and median time to progression (TTP) was 6.8 and 5.4 months, respectively (HR 0.62, 95% CI: 0.46-0.84; P = 0.002). For patients with ER-negative tumours, significantly longer TTP was seen with CD (5.2 versus 3.5 months; HR 0.73, 95% CI: 0.53-0.98; P = 0.038). Whether there is an additional C to D treatment benefit in ER-positive versus ER-negative MBC requires further evaluation.
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Affiliation(s)
- S Glück
- Department of Medicine, Division of Hematology/Oncology, University of Miami, Leonard M Miller School of Medicine, Sylvester Comprehensive Cancer Center, 1475 NW 12th Avenue, Miami, FL 33136, USA.
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Retegan C, Russell C, Harris D, Andrianopoulos N, Beiles CB. Evaluating the value and impact of the Victorian Audit of Surgical Mortality. ANZ J Surg 2013; 83:724-8. [PMID: 23855838 DOI: 10.1111/ans.12311] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 06/10/2013] [Indexed: 11/30/2022]
Abstract
INTRODUCTION Since the Victorian Audit of Surgical Mortality (VASM) commenced in 2007, 95% of Victorian Fellows have agreed to participate and have provided data on the deaths of patients receiving surgical care. All public, and the majority of private, hospitals involved in the delivery of surgical services in Victoria have been submitting data on deaths associated with surgery. De-identified reports on this data are distributed in regular annual reports and case note review booklets. Although informal feedback on the perceived value of the audit was encouraging, a formal review of all aspects of the audit was felt necessary. METHODS An independent formal review of VASM governance, documentation, datasets and data analysis was performed, in addition to a survey of 257 individuals (surgeons and other stakeholders) on the perceived impact of VASM. RESULTS The review confirmed increasing participation and acceptance by surgeons since the inception of the project. Governance mechanisms were found to be effective and acknowledged by stakeholders and collaborators. Robust participation rates have been achieved, and stakeholders were generally satisfied with the quality of feedback. Suggestions for improvement were provided by some surgeons and hospitals. CONCLUSION External review of VASM processes and procedures confirmed that the audit was operating effectively, with robust quality control and achieving the trust of stakeholders. The educational value of the audit to the surgical community was acknowledged and areas for future improvement have been identified.
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Affiliation(s)
- Claudia Retegan
- Victorian Audit of Surgical Mortality, Royal Australasian College of Surgeons, Melbourne, Victoria, Australia
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Klein-Geltink J, Forte T, Rahal R, Darling G, Cheung W, Alvi R, Noonan G, Russell C, Vriends K, Niu J, Lockwood G, Bryant H. New chart review data validate administrative data-based indicator for guideline-recommended treatment of locally advanced non-small-cell lung cancer and shed light on reasons for non-referral and non-treatment. ACTA ACUST UNITED AC 2013; 20:118-20. [PMID: 23559875 DOI: 10.3747/co.20.1351] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
The 2012 Cancer System Performance Report is the 4th annual report on the Canadian cancer control system produced by the System Performance initiative at the Canadian Partnership Against Cancer, in collaboration with its provincial and national partners. [...]
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Klimov AI, Garten R, Russell C, Barr IG, Besselaar TG, Daniels R, Engelhardt OG, Grohmann G, Itamura S, Kelso A, McCauley J, Odagiri T, Smith D, Tashiro M, Xu X, Webby R, Wang D, Ye Z, Yuelong S, Zhang W, Cox N. WHO recommendations for the viruses to be used in the 2012 Southern Hemisphere Influenza Vaccine: epidemiology, antigenic and genetic characteristics of influenza A(H1N1)pdm09, A(H3N2) and B influenza viruses collected from February to September 2011. Vaccine 2012; 30:6461-71. [PMID: 22917957 PMCID: PMC6061925 DOI: 10.1016/j.vaccine.2012.07.089] [Citation(s) in RCA: 54] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/05/2012] [Revised: 07/25/2012] [Accepted: 07/31/2012] [Indexed: 11/27/2022]
Abstract
In February and September each year the World Health Organisation (WHO) recommends influenza viruses to be included in influenza vaccines for the forthcoming winters in the Northern and Southern Hemispheres respectively. These recommendations are based on data collected by National Influenza Centres (NIC) through the Global Influenza Surveillance and Response System (GISRS) and a more detailed analysis of representative and potential antigenically variant influenza viruses from the WHO Collaborating Centres for Influenza (WHO CCs) and Essential Regulatory Laboratories (ERLs). This article provides a detailed summary of the antigenic and genetic properties of viruses and additional background data used by WHO experts during development of the recommendations for the 2012 Southern Hemisphere influenza vaccine composition.
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Affiliation(s)
- Alexander I Klimov
- WHO Collaborating Centre for Surveillance, Epidemiology and Control of Influenza, Influenza Division, Centres for Disease Control and Prevention, NE, Atlanta, GA 30333, USA.
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Valergakis GE, Russell C, Grogono-Thomas R, Eisler MC, Bradley AJ. Coxiella burnetii
in bulk tank milk of dairy cattle in south-west England. Vet Rec 2012; 171:156, 1-2. [DOI: 10.1136/vr.100908] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
Affiliation(s)
- G. E. Valergakis
- Department of Animal Production; Faculty of Veterinary Medicine; Aristotle University of Thessaloniki; Thessaloniki Greece
| | - C. Russell
- School of Veterinary Sciences; University of Bristol; Langford House Langford Bristol BS40 5DU UK
| | - R. Grogono-Thomas
- School of Veterinary Sciences; University of Bristol; Langford House Langford Bristol BS40 5DU UK
| | - M. C. Eisler
- School of Veterinary Sciences; University of Bristol; Langford House Langford Bristol BS40 5DU UK
| | - A. J. Bradley
- Quality Milk Management Services Ltd; Cedar Barn, Easton Hill, Easton Wells Somerset BA5 1DU
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Russell C, Reilly J, Gibson N, Moore T, Ray A, Devlin M, Wynne D. Disordered sleep physiology in children presenting for primary cleft repair. Use of sleep studies results to guide preoperative respiratory intervention and plan the timing of surgical cleft repair. Br J Oral Maxillofac Surg 2012. [DOI: 10.1016/j.bjoms.2012.04.153] [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]
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Russell C, McCahil C, MacFie J, Devlin M, Wynne D, Ray A. Furlow palatoplasty or midline palatal repair with intravelar-veloplasty for cleft palate. Are there any differences in audiological outcome? Br J Oral Maxillofac Surg 2012. [DOI: 10.1016/j.bjoms.2012.04.149] [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]
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