1
|
Aguilar-Arevalo AA, Brown BC, Conrad JM, Dharmapalan R, Diaz A, Djurcic Z, Finley DA, Ford R, Garvey GT, Gollapinni S, Hourlier A, Huang EC, Kamp NW, Karagiorgi G, Katori T, Kobilarcik T, Lin K, Louis WC, Mariani C, Marsh W, Mills GB, Mirabal-Martinez J, Moore CD, Nelson RH, Nowak J, Pavlovic Z, Ray H, Roe BP, Russell AD, Schneider A, Shaevitz MH, Spitz J, Stancu I, Tayloe R, Thornton RT, Tzanov M, Van de Water RG, White DH, Zimmerman ED. MiniBooNE and MicroBooNE Combined Fit to a 3+1 Sterile Neutrino Scenario. Phys Rev Lett 2022; 129:201801. [PMID: 36461983 DOI: 10.1103/physrevlett.129.201801] [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] [Subscribe] [Scholar Register] [Received: 01/05/2022] [Revised: 09/09/2022] [Accepted: 09/28/2022] [Indexed: 06/17/2023]
Abstract
This Letter presents the results from the MiniBooNE experiment within a full "3+1" scenario where one sterile neutrino is introduced to the three-active-neutrino picture. In addition to electron-neutrino appearance at short baselines, this scenario also allows for disappearance of the muon-neutrino and electron-neutrino fluxes in the Booster Neutrino Beam, which is shared by the MicroBooNE experiment. We present the 3+1 fit to the MiniBooNE electron-(anti)neutrino and muon-(anti)neutrino data alone and in combination with MicroBooNE electron-neutrino data. The best-fit parameters of the combined fit with the exclusive charged-current quasielastic analysis (inclusive analysis) are Δm^{2}=0.209 eV^{2}(0.033 eV^{2}), |U_{e4}|^{2}=0.016(0.500), |U_{μ4}|^{2}=0.500(0.500), and sin^{2}(2θ_{μe})=0.0316(1.0). Comparing the no-oscillation scenario to the 3+1 model, the data prefer the 3+1 model with a Δχ^{2}/d.o.f.=24.7/3(17.3/3), a 4.3σ(3.4σ) preference assuming the asymptotic approximation given by Wilks's theorem.
Collapse
Affiliation(s)
- A A Aguilar-Arevalo
- Instituto de Ciencias Nucleares, Universidad Nacional Autónoma de México, CDMX 04510, México
| | - B C Brown
- Fermi National Accelerator Laboratory, Batavia, Illinois 60510, USA
| | - J M Conrad
- Massachusetts Institute of Technology, Cambridge, Massachusetts 02139, USA
| | - R Dharmapalan
- University of Alabama, Tuscaloosa, Alabama 35487, USA
- University of Hawaii, Manoa, Honolulu, Hawaii 96822, USA
| | - A Diaz
- Massachusetts Institute of Technology, Cambridge, Massachusetts 02139, USA
| | - Z Djurcic
- Argonne National Laboratory, Argonne, Illinois 60439, USA
| | - D A Finley
- Fermi National Accelerator Laboratory, Batavia, Illinois 60510, USA
| | - R Ford
- Fermi National Accelerator Laboratory, Batavia, Illinois 60510, USA
| | - G T Garvey
- Los Alamos National Laboratory, Los Alamos, New Mexico 87545, USA
| | - S Gollapinni
- Los Alamos National Laboratory, Los Alamos, New Mexico 87545, USA
| | - A Hourlier
- Massachusetts Institute of Technology, Cambridge, Massachusetts 02139, USA
| | - E-C Huang
- Los Alamos National Laboratory, Los Alamos, New Mexico 87545, USA
| | - N W Kamp
- Massachusetts Institute of Technology, Cambridge, Massachusetts 02139, USA
| | - G Karagiorgi
- Columbia University, New York, New York 10027, USA
| | - T Katori
- King's College London, London WC2R 2LS, United Kingdom
| | - T Kobilarcik
- Fermi National Accelerator Laboratory, Batavia, Illinois 60510, USA
| | - K Lin
- Columbia University, New York, New York 10027, USA
- Los Alamos National Laboratory, Los Alamos, New Mexico 87545, USA
| | - W C Louis
- Los Alamos National Laboratory, Los Alamos, New Mexico 87545, USA
| | - C Mariani
- Center for Neutrino Physics, Virginia Tech, Blacksburg, Virginia 24061, USA
| | - W Marsh
- Fermi National Accelerator Laboratory, Batavia, Illinois 60510, USA
| | - G B Mills
- Los Alamos National Laboratory, Los Alamos, New Mexico 87545, USA
| | | | - C D Moore
- Fermi National Accelerator Laboratory, Batavia, Illinois 60510, USA
| | - R H Nelson
- University of Colorado, Boulder, Colorado 80309, USA
| | - J Nowak
- Lancaster University, Lancaster LA1 4YB, United Kingdom
| | - Z Pavlovic
- Fermi National Accelerator Laboratory, Batavia, Illinois 60510, USA
| | - H Ray
- University of Florida, Gainesville, Florida 32611, USA
| | - B P Roe
- University of Michigan, Ann Arbor, Michigan 48109, USA
| | - A D Russell
- Fermi National Accelerator Laboratory, Batavia, Illinois 60510, USA
| | - A Schneider
- Massachusetts Institute of Technology, Cambridge, Massachusetts 02139, USA
| | - M H Shaevitz
- Columbia University, New York, New York 10027, USA
| | - J Spitz
- University of Michigan, Ann Arbor, Michigan 48109, USA
| | - I Stancu
- University of Alabama, Tuscaloosa, Alabama 35487, USA
| | - R Tayloe
- Indiana University, Bloomington, Indiana 47405, USA
| | - R T Thornton
- Los Alamos National Laboratory, Los Alamos, New Mexico 87545, USA
| | - M Tzanov
- University of Colorado, Boulder, Colorado 80309, USA
- Louisiana State University, Baton Rouge, Louisiana 70803, USA
| | - R G Van de Water
- Los Alamos National Laboratory, Los Alamos, New Mexico 87545, USA
| | - D H White
- Los Alamos National Laboratory, Los Alamos, New Mexico 87545, USA
| | - E D Zimmerman
- University of Colorado, Boulder, Colorado 80309, USA
| |
Collapse
|
2
|
Marsden M, Perkins Z, Marsh W, Christian M, Lyon R, Davenport R, Tai N. 92 Evaluation of an Artificial Intelligence (AI) System to Augment Clinical Risk Prediction of Trauma Induced Coagulopathy: A Prospective Observational Study. Br J Surg 2022. [DOI: 10.1093/bjs/znac041.005] [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: 11/15/2022]
Abstract
Abstract
Introduction
The potential of AI systems to support pre-hospital clinical decision-making is significant. However, whilst such algorithms are increasingly available, far less attention has been paid to understanding the impact of such systems on clinical performance. This study had two aims; first, to compare the performance of expert clinicians against an AI system in a real-world clinical setting and second, to assess the impact of augmenting expert clinical prediction with an AI system.
Method
We performed a prospective study at two UK Air Ambulances services over a six-month period. Expert pre-hospital clinicians’ judgement of the risk of Trauma Induced Coagulopathy (TIC) in injured patients was assessed and compared to the performance of an AI system. Two TIC risk predictions were generated for every patient: an AI prediction and a human prediction.
Results
Overall, 51 expert clinicians were enrolled in the study providing 184 patient interactions for analysis.
Aim 1
The AI system performed better than clinicians; higher discrimination [AUROC 0.87 (0.79, 0.95) versus 0.83 (0.74, 0.92)] better calibration [0.37 (-0.14, 0.89) versus -1.19 (-1.73, -0.65)] and more accurate [Brier Skill Score 0.34 (0.19, 0.48) versus 0.00 (-0.41, 0.30)].
Aim 2
Risk prediction was better in all performance metrics when clinicians were assisted with the AI system [AUROC 0.88 (0.80, 0.95) versus 0.83 (0.74, 0.92)]
Conclusions
AI systems can improve human risk prediction in the pre-hospital setting. In settings of low resources where a lack of senior clinical expertise may affect outcomes, the benefit of implementing predictive AI is substantial.
Collapse
Affiliation(s)
- M. Marsden
- Centre for Trauma Sciences, Queen Mary University of London, London, United Kingdom
- Academic Department of Military Surgery and Trauma, Royal Centre for Defence Medicine, Birmingham, United Kingdom
| | - Z. Perkins
- Centre for Trauma Sciences, Queen Mary University of London, London, United Kingdom
| | - W. Marsh
- School of Electronical Engineering and Computer Sciences, Queen Mary University of London, London, United Kingdom
| | | | - R. Lyon
- Air Ambulance Kent Surrey Sussex, Redhill, United Kingdom
| | - R. Davenport
- Centre for Trauma Sciences, Queen Mary University of London, London, United Kingdom
| | - N. Tai
- Centre for Trauma Sciences, Queen Mary University of London, London, United Kingdom
- Academic Department of Military Surgery and Trauma, Royal Centre for Defence Medicine, Birmingham, United Kingdom
| |
Collapse
|
3
|
Gulle H, Yuceturk H, Sakar C, Joyner C, Marsh W, Unal E, Morrissey D, Yet B. Can Bayesian statistical approaches reduce the questionnaire burden for respondents when PROMs and PREMs are administered electronically? Physiotherapy 2022. [DOI: 10.1016/j.physio.2021.12.019] [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]
|
4
|
Hill A, Keith-Jopp C, Joyner C, Marsh W, Morrissey D. Developing BENDi: A BayEsian Network DecIsion support tool for managing low back pain. Physiotherapy 2021. [DOI: 10.1016/j.physio.2021.10.052] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
|
5
|
Bauer M, Rasgon N, Grof P, Glenn T, Lapp M, Marsh W, Munoz R, Suwalska A, Baethge C, Bschor T, Alda M, Whybrow PC. Do antidepressants influence mood patterns? A naturalistic study in bipolar disorder. Eur Psychiatry 2020; 21:262-9. [PMID: 16782312 DOI: 10.1016/j.eurpsy.2006.04.009] [Citation(s) in RCA: 21] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
AbstractThis prospective, longitudinal study compared the frequency and pattern of mood changes between outpatients receiving usual care for bipolar disorder who were either taking or not taking antidepressants. One hundred and eighty-two patients with bipolar disorder self-reported mood and psychiatric medications for 4 months using a computerized system (ChronoRecord) and returned 22,626 days of data. One hundred and four patients took antidepressants, 78 did not. Of the antidepressants taken, 95% were selective serotonin or norepinephrine reuptake inhibitors, or second-generation antidepressants. Of the patients taking an antidepressant, 91.3% were concurrently taking a mood stabilizer. The use of antidepressants did not influence the daily rate of switching from depression to mania or the rate of rapid cycling, independent of diagnosis of bipolar I or II. The primary difference in mood pattern was the time spent normal or depressed. Patients taking antidepressants frequently remained in a subsyndromal depression. In this naturalistic study using self-reported data, patients with bipolar disorder who were taking antidepressants—overwhelmingly not tricyclics and with a concurrent mood stabilizer—did not experience an increase in the rate of switches to mania or rapid cycling compared to those not taking antidepressants. Antidepressants had little impact on the mood patterns of bipolar patients taking mood stabilizers.
Collapse
Affiliation(s)
- M Bauer
- Department of Psychiatry and Psychotherapy, Charité-University Medicine Berlin, Campus Charité Mitte (CCM), Schumannstrasse 20/21, 10117 Berlin, Germany.
| | | | | | | | | | | | | | | | | | | | | | | |
Collapse
|
6
|
Bauer M, Glenn T, Alda M, Andreassen O, Angelopoulos E, Ardau R, Baethge C, Bauer R, Bellivier F, Belmaker R, Berk M, Bjella T, Bossini L, Bersudsky Y, Cheung E, Conell J, Del Zompo M, Dodd S, Etain B, Fagiolini A, Frye M, Fountoulakis K, Garneau-Fournier J, Gonzalez-Pinto A, Harima H, Hassel S, Henry C, Iacovides A, Isometsä E, Kapczinski F, Kliwicki S, König B, Krogh R, Kunz M, Lafer B, Larsen E, Lewitzka U, Lopez-Jaramillo C, MacQueen G, Manchia M, Marsh W, Martinez-Cengotitabengoa M, Melle I, Monteith S, Morken G, Munoz R, Nery F, O’Donovan C, Osher Y, Pfennig A, Quiroz D, Ramesar R, Rasgon N, Reif A, Ritter P, Rybakowski J, Sagduyu K, Scippa A, Severus E, Simhandl C, Stein D, Strejilevich S, Hatim Sulaiman A, Suominen K, Tagata H, Tatebayashi Y, Torrent C, Vieta E, Viswanath B, Wanchoo M, Zetin M, Whybrow P. Influence of birth cohort on age of onset cluster analysis in bipolar I disorder. Eur Psychiatry 2020; 30:99-105. [DOI: 10.1016/j.eurpsy.2014.10.005] [Citation(s) in RCA: 23] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/02/2014] [Revised: 09/10/2014] [Accepted: 10/21/2014] [Indexed: 10/24/2022] Open
Abstract
AbstractPurpose:Two common approaches to identify subgroups of patients with bipolar disorder are clustering methodology (mixture analysis) based on the age of onset, and a birth cohort analysis. This study investigates if a birth cohort effect will influence the results of clustering on the age of onset, using a large, international database.Methods:The database includes 4037 patients with a diagnosis of bipolar I disorder, previously collected at 36 collection sites in 23 countries. Generalized estimating equations (GEE) were used to adjust the data for country median age, and in some models, birth cohort. Model-based clustering (mixture analysis) was then performed on the age of onset data using the residuals. Clinical variables in subgroups were compared.Results:There was a strong birth cohort effect. Without adjusting for the birth cohort, three subgroups were found by clustering. After adjusting for the birth cohort or when considering only those born after 1959, two subgroups were found. With results of either two or three subgroups, the youngest subgroup was more likely to have a family history of mood disorders and a first episode with depressed polarity. However, without adjusting for birth cohort (three subgroups), family history and polarity of the first episode could not be distinguished between the middle and oldest subgroups.Conclusion:These results using international data confirm prior findings using single country data, that there are subgroups of bipolar I disorder based on the age of onset, and that there is a birth cohort effect. Including the birth cohort adjustment altered the number and characteristics of subgroups detected when clustering by age of onset. Further investigation is needed to determine if combining both approaches will identify subgroups that are more useful for research.
Collapse
|
7
|
Bauer M, Glenn T, Alda M, Bauer R, Grof P, Marsh W, Monteith S, Munoz R, Rasgon N, Sagduyu K, Whybrow PC. Trajectories of adherence to mood stabilizers in patients with bipolar disorder. Int J Bipolar Disord 2019; 7:19. [PMID: 31482209 PMCID: PMC6722168 DOI: 10.1186/s40345-019-0154-z] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/08/2019] [Accepted: 07/24/2019] [Indexed: 01/27/2023] Open
Abstract
Background Nonadherence with mood stabilizers is a major problem that negatively impacts the course of bipolar disorder. Medication adherence is a complex individual behavior, and adherence rates often change over time. This study asked if distinct classes of adherence trajectories with mood stabilizers over time could be found, and if so, which patient characteristics were associated with the classes. Methods This analysis was based on 12 weeks of daily self-reported data from 273 patients with bipolar 1 or II disorder using ChronoRecord computer software. All patients were taking at least one mood stabilizer. The latent class mixed model was used to detect trajectories of adherence based on 12 weekly calculated adherence datapoints per patient. Results Two distinct trajectory classes were found: an adherent class (210 patients; 77%) and a less adherent class (63 patients; 23%). The characteristics associated with the less adherent class were: more time not euthymic (p < 0.001) and female gender (p = 0.016). No other demographic associations were found. Conclusion In a sample of motivated patients who complete daily mood charting, about one quarter were in the less adherent class. Even patients who actively participate in their care, such as by daily mood charting, may be nonadherent. Demographic characteristics may not be useful in assessing individual adherence. Future research on longitudinal adherence patterns in bipolar disorder is needed.
Collapse
Affiliation(s)
- M Bauer
- Department of Psychiatry and Psychotherapy, Medical Faculty, University Hospital Carl Gustav Carus, Technische Universität Dresden, Fetscherstr. 74, 01307, Dresden, Germany.
| | - T Glenn
- ChronoRecord Association Inc., Fullerton, CA, USA
| | - M Alda
- Department of Psychiatry, Dalhousie University, Halifax, NS, Canada
| | - R Bauer
- Department of Psychiatry and Psychotherapy, Medical Faculty, University Hospital Carl Gustav Carus, Technische Universität Dresden, Fetscherstr. 74, 01307, Dresden, Germany
| | - P Grof
- Mood Disorders Center of Ottawa, University of Toronto, Toronto, Canada
| | - W Marsh
- Department of Psychiatry, University of Massachusetts, Worcester, MA, USA
| | - S Monteith
- Michigan State University College of Human Medicine, Traverse City Campus, Traverse City, MI, USA
| | - R Munoz
- Department of Psychiatry, University of California San Diego, San Diego, CA, USA
| | - N Rasgon
- Department of Psychiatry and Behavioral Sciences, Stanford School of Medicine, Palo Alto, CA, USA
| | - K Sagduyu
- Department of Psychiatry, University of Missouri Kansas City School of Medicine, Kansas City, MO, USA
| | - P C Whybrow
- Department of Psychiatry and Biobehavioral Sciences, Semel Institute for Neuroscience and Human Behavior University of California Los Angeles (UCLA), Los Angeles, CA, USA
| |
Collapse
|
8
|
Aguilar-Arevalo AA, Brown BC, Bugel L, Cheng G, Conrad JM, Cooper RL, Dharmapalan R, Diaz A, Djurcic Z, Finley DA, Ford R, Garcia FG, Garvey GT, Grange J, Huang EC, Huelsnitz W, Ignarra C, Johnson RA, Karagiorgi G, Katori T, Kobilarcik T, Louis WC, Mariani C, Marsh W, Mills GB, Mirabal J, Monroe J, Moore CD, Mousseau J, Nienaber P, Nowak J, Osmanov B, Pavlovic Z, Perevalov D, Ray H, Roe BP, Russell AD, Shaevitz MH, Spitz J, Stancu I, Tayloe R, Thornton RT, Tzanov M, Van de Water RG, White DH, Wickremasinghe DA, Zimmerman ED. Significant Excess of Electronlike Events in the MiniBooNE Short-Baseline Neutrino Experiment. Phys Rev Lett 2018; 121:221801. [PMID: 30547637 DOI: 10.1103/physrevlett.121.221801] [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] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/30/2018] [Revised: 09/28/2018] [Indexed: 06/09/2023]
Abstract
The MiniBooNE experiment at Fermilab reports results from an analysis of ν_{e} appearance data from 12.84×10^{20} protons on target in neutrino mode, an increase of approximately a factor of 2 over previously reported results. A ν_{e} charged-current quasielastic event excess of 381.2±85.2 events (4.5σ) is observed in the energy range 200<E_{ν}^{QE}<1250 MeV. Combining these data with the ν[over ¯]_{e} appearance data from 11.27×10^{20} protons on target in antineutrino mode, a total ν_{e} plus ν[over ¯]_{e} charged-current quasielastic event excess of 460.5±99.0 events (4.7σ) is observed. If interpreted in a two-neutrino oscillation model, ν_{μ}→ν_{e}, the best oscillation fit to the excess has a probability of 21.1%, while the background-only fit has a χ^{2} probability of 6×10^{-7} relative to the best fit. The MiniBooNE data are consistent in energy and magnitude with the excess of events reported by the Liquid Scintillator Neutrino Detector (LSND), and the significance of the combined LSND and MiniBooNE excesses is 6.0σ. A two-neutrino oscillation interpretation of the data would require at least four neutrino types and indicate physics beyond the three neutrino paradigm. Although the data are fit with a two-neutrino oscillation model, other models may provide better fits to the data.
Collapse
Affiliation(s)
- A A Aguilar-Arevalo
- Instituto de Ciencias Nucleares, Universidad Nacional Autónoma de México, CDMX 04510, Mexico
| | - B C Brown
- Fermi National Accelerator Laboratory, Batavia, Illinois 60510, USA
| | - L Bugel
- Massachusetts Institute of Technology, Cambridge, Massachusetts 02139, USA
| | - G Cheng
- Columbia University, New York, New York 10027, USA
| | - J M Conrad
- Massachusetts Institute of Technology, Cambridge, Massachusetts 02139, USA
| | - R L Cooper
- Los Alamos National Laboratory, Los Alamos, New Mexico 87545, USA
- New Mexico State University, Las Cruces, New Mexico 88003, USA
| | - R Dharmapalan
- University of Alabama, Tuscaloosa, Alabama 35487, USA
- Argonne National Laboratory, Argonne, Illinois 60439, USA
| | - A Diaz
- Massachusetts Institute of Technology, Cambridge, Massachusetts 02139, USA
| | - Z Djurcic
- Argonne National Laboratory, Argonne, Illinois 60439, USA
| | - D A Finley
- Fermi National Accelerator Laboratory, Batavia, Illinois 60510, USA
| | - R Ford
- Fermi National Accelerator Laboratory, Batavia, Illinois 60510, USA
| | - F G Garcia
- Fermi National Accelerator Laboratory, Batavia, Illinois 60510, USA
| | - G T Garvey
- Los Alamos National Laboratory, Los Alamos, New Mexico 87545, USA
| | - J Grange
- University of Florida, Gainesville, Florida 32611, USA
| | - E-C Huang
- Los Alamos National Laboratory, Los Alamos, New Mexico 87545, USA
| | - W Huelsnitz
- Los Alamos National Laboratory, Los Alamos, New Mexico 87545, USA
| | - C Ignarra
- Massachusetts Institute of Technology, Cambridge, Massachusetts 02139, USA
| | - R A Johnson
- University of Cincinnati, Cincinnati, Ohio 45221, USA
| | - G Karagiorgi
- Columbia University, New York, New York 10027, USA
| | - T Katori
- Massachusetts Institute of Technology, Cambridge, Massachusetts 02139, USA
- Queen Mary University of London, London E1 4NS, United Kingdom
| | - T Kobilarcik
- Fermi National Accelerator Laboratory, Batavia, Illinois 60510, USA
| | - W C Louis
- Los Alamos National Laboratory, Los Alamos, New Mexico 87545, USA
| | - C Mariani
- Center for Neutrino Physics, Virginia Tech, Blacksburg, Virginia 24061, USA
| | - W Marsh
- Fermi National Accelerator Laboratory, Batavia, Illinois 60510, USA
| | - G B Mills
- Los Alamos National Laboratory, Los Alamos, New Mexico 87545, USA
| | - J Mirabal
- Los Alamos National Laboratory, Los Alamos, New Mexico 87545, USA
| | - J Monroe
- Royal Holloway, University of London, Egham TW20 0EX, United Kingdom
| | - C D Moore
- Fermi National Accelerator Laboratory, Batavia, Illinois 60510, USA
| | - J Mousseau
- University of Michigan, Ann Arbor, Michigan 48109, USA
| | - P Nienaber
- Saint Mary's University of Minnesota, Winona, Minnesota 55987, USA
| | - J Nowak
- Lancaster University, Lancaster LA1 4YB, United Kingdom
| | - B Osmanov
- University of Florida, Gainesville, Florida 32611, USA
| | - Z Pavlovic
- Fermi National Accelerator Laboratory, Batavia, Illinois 60510, USA
| | - D Perevalov
- Fermi National Accelerator Laboratory, Batavia, Illinois 60510, USA
| | - H Ray
- University of Florida, Gainesville, Florida 32611, USA
| | - B P Roe
- University of Michigan, Ann Arbor, Michigan 48109, USA
| | - A D Russell
- Fermi National Accelerator Laboratory, Batavia, Illinois 60510, USA
| | - M H Shaevitz
- Columbia University, New York, New York 10027, USA
| | - J Spitz
- University of Michigan, Ann Arbor, Michigan 48109, USA
| | - I Stancu
- University of Alabama, Tuscaloosa, Alabama 35487, USA
| | - R Tayloe
- Indiana University, Bloomington, Indiana 47405, USA
| | - R T Thornton
- Los Alamos National Laboratory, Los Alamos, New Mexico 87545, USA
| | - M Tzanov
- University of Colorado, Boulder, Colorado 80309, USA
- Louisiana State University, Baton Rouge, Louisiana 70803, USA
| | - R G Van de Water
- Los Alamos National Laboratory, Los Alamos, New Mexico 87545, USA
| | - D H White
- Los Alamos National Laboratory, Los Alamos, New Mexico 87545, USA
| | | | - E D Zimmerman
- University of Colorado, Boulder, Colorado 80309, USA
| |
Collapse
|
9
|
Marsden MER, Mossadegh S, Marsh W, Tai N. Development of a major incident triage tool: the importance of evidence from implementation studies. BMJ Mil Health 2018; 166:204. [PMID: 30257931 DOI: 10.1136/jramc-2018-001057] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/27/2018] [Accepted: 08/28/2018] [Indexed: 11/03/2022]
Affiliation(s)
- Max E R Marsden
- Academic Department of Military Surgery and Trauma, Royal Centre for Defence Medicine Ringgold Standard Institution, Birmingham, UK .,Queen Mary University of London - Whitechapel Campus Ringgold Standard Institution, Queen Mary University of London, London, UK
| | - S Mossadegh
- Queen Mary University of London - Whitechapel Campus Ringgold Standard Institution, Queen Mary University of London, London, UK
| | - W Marsh
- Risk and Information Systems Research Group, School of Electronic Engineering and Computer Science, Queen Mary University of London - Mile End Campus Ringgold Standard Institution, London, UK
| | - N Tai
- Academic Department of Military Surgery and Trauma, Royal Centre for Defence Medicine Ringgold Standard Institution, Birmingham, UK.,Queen Mary University of London - Whitechapel Campus Ringgold Standard Institution, Queen Mary University of London, London, UK
| |
Collapse
|
10
|
Aguilar-Arevalo AA, Brown BC, Bugel L, Cheng G, Church ED, Conrad JM, Cooper RL, Dharmapalan R, Djurcic Z, Finley DA, Fitzpatrick RS, Ford R, Garcia FG, Garvey GT, Grange J, Huelsnitz W, Ignarra C, Imlay R, Johnson RA, Jordan JR, Karagiorgi G, Katori T, Kobilarcik T, Louis WC, Mahn K, Mariani C, Marsh W, Mills GB, Mirabal J, Moore CD, Mousseau J, Nienaber P, Osmanov B, Pavlovic Z, Perevalov D, Ray H, Roe BP, Russell AD, Shaevitz MH, Spitz J, Stancu I, Tayloe R, Thornton RT, Van de Water RG, Wascko MO, White DH, Wickremasinghe DA, Zeller GP, Zimmerman ED. First Measurement of Monoenergetic Muon Neutrino Charged Current Interactions. Phys Rev Lett 2018; 120:141802. [PMID: 29694148 DOI: 10.1103/physrevlett.120.141802] [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] [Subscribe] [Scholar Register] [Received: 01/11/2018] [Indexed: 06/08/2023]
Abstract
We report the first measurement of monoenergetic muon neutrino charged current interactions. MiniBooNE has isolated 236 MeV muon neutrino events originating from charged kaon decay at rest (K^{+}→μ^{+}ν_{μ}) at the NuMI beamline absorber. These signal ν_{μ}-carbon events are distinguished from primarily pion decay in flight ν_{μ} and ν[over ¯]_{μ} backgrounds produced at the target station and decay pipe using their arrival time and reconstructed muon energy. The significance of the signal observation is at the 3.9σ level. The muon kinetic energy, neutrino-nucleus energy transfer (ω=E_{ν}-E_{μ}), and total cross section for these events are extracted. This result is the first known-energy, weak-interaction-only probe of the nucleus to yield a measurement of ω using neutrinos, a quantity thus far only accessible through electron scattering.
Collapse
Affiliation(s)
- A A Aguilar-Arevalo
- Instituto de Ciencias Nucleares, Universidad Nacional Autónoma de México, D.F. 04510, Mexico
| | - B C Brown
- Fermi National Accelerator Laboratory, Batavia, Illinois 60510, USA
| | - L Bugel
- Massachusetts Institute of Technology, Cambridge, Massachusetts 02139, USA
| | - G Cheng
- Columbia University, New York, New York 10027, USA
| | - E D Church
- Yale University, New Haven, Connecticut 06520, USA
| | - J M Conrad
- Massachusetts Institute of Technology, Cambridge, Massachusetts 02139, USA
| | - R L Cooper
- Los Alamos National Laboratory, Los Alamos, New Mexico 87545, USA
- New Mexico State University, Las Cruces, New Mexico 88003, USA
| | - R Dharmapalan
- University of Alabama, Tuscaloosa, Alabama 35487, USA
| | - Z Djurcic
- Argonne National Laboratory, Argonne, Illinois 60439, USA
| | - D A Finley
- Fermi National Accelerator Laboratory, Batavia, Illinois 60510, USA
| | | | - R Ford
- Fermi National Accelerator Laboratory, Batavia, Illinois 60510, USA
| | - F G Garcia
- Fermi National Accelerator Laboratory, Batavia, Illinois 60510, USA
| | - G T Garvey
- Los Alamos National Laboratory, Los Alamos, New Mexico 87545, USA
| | - J Grange
- Argonne National Laboratory, Argonne, Illinois 60439, USA
| | - W Huelsnitz
- Los Alamos National Laboratory, Los Alamos, New Mexico 87545, USA
| | - C Ignarra
- Massachusetts Institute of Technology, Cambridge, Massachusetts 02139, USA
| | - R Imlay
- Louisiana State University, Baton Rouge, Louisiana 70803, USA
| | - R A Johnson
- University of Cincinnati, Cincinnati, Ohio 45221, USA
| | - J R Jordan
- University of Michigan, Ann Arbor, Michigan 48109, USA
| | - G Karagiorgi
- Columbia University, New York, New York 10027, USA
| | - T Katori
- Queen Mary University of London, London E1 4NS, United Kingdom
| | - T Kobilarcik
- Fermi National Accelerator Laboratory, Batavia, Illinois 60510, USA
| | - W C Louis
- Los Alamos National Laboratory, Los Alamos, New Mexico 87545, USA
| | - K Mahn
- Columbia University, New York, New York 10027, USA
- Michigan State University, East Lansing, Michigan 48824, USA
| | - C Mariani
- Center for Neutrino Physics, Virginia Tech, Blacksburg, Virginia 24061, USA
| | - W Marsh
- Fermi National Accelerator Laboratory, Batavia, Illinois 60510, USA
| | - G B Mills
- Los Alamos National Laboratory, Los Alamos, New Mexico 87545, USA
| | - J Mirabal
- Los Alamos National Laboratory, Los Alamos, New Mexico 87545, USA
| | - C D Moore
- Fermi National Accelerator Laboratory, Batavia, Illinois 60510, USA
| | - J Mousseau
- University of Michigan, Ann Arbor, Michigan 48109, USA
| | - P Nienaber
- Saint Mary's University of Minnesota, Winona, Minnesota 55987, USA
| | - B Osmanov
- University of Florida, Gainesville, Florida 32611, USA
| | - Z Pavlovic
- Los Alamos National Laboratory, Los Alamos, New Mexico 87545, USA
| | - D Perevalov
- Fermi National Accelerator Laboratory, Batavia, Illinois 60510, USA
| | - H Ray
- University of Florida, Gainesville, Florida 32611, USA
| | - B P Roe
- University of Michigan, Ann Arbor, Michigan 48109, USA
| | - A D Russell
- Fermi National Accelerator Laboratory, Batavia, Illinois 60510, USA
| | - M H Shaevitz
- Columbia University, New York, New York 10027, USA
| | - J Spitz
- University of Michigan, Ann Arbor, Michigan 48109, USA
| | - I Stancu
- University of Alabama, Tuscaloosa, Alabama 35487, USA
| | - R Tayloe
- Indiana University, Bloomington, Indiana 47405, USA
| | - R T Thornton
- Los Alamos National Laboratory, Los Alamos, New Mexico 87545, USA
| | - R G Van de Water
- Los Alamos National Laboratory, Los Alamos, New Mexico 87545, USA
| | - M O Wascko
- Imperial College London, London SW7 2AZ, United Kingdom
| | - D H White
- Los Alamos National Laboratory, Los Alamos, New Mexico 87545, USA
| | | | - G P Zeller
- Fermi National Accelerator Laboratory, Batavia, Illinois 60510, USA
| | - E D Zimmerman
- University of Colorado, Boulder, Colorado 80309, USA
| |
Collapse
|
11
|
Subotin M, Marsh W, McMichael J, Fung JJ, Dvorchik I. Performance of Multi-Layer Feedforward Neural Networks to Predict Liver Transplantation Outcome. Methods Inf Med 2018. [DOI: 10.1055/s-0038-1634637] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/17/2022]
Abstract
AbstractA novel multisolutional clustering and quantization (MCO) algorithm has been developed that provides a flexible way to preprocess data. It was tested whether it would impact the neural network’s performance favorably and whether the employment of the proposed algorithm would enable neural networks to handle missing data. This was assessed by comparing the performance of neural networks using a well-documented data set to predict outcome following liver transplantation. This new approach to data preprocessing leads to a statistically significant improvement in network performance when compared to simple linear scaling. The obtained results also showed that coding missing data as zeroes in combination with the MCO algorithm, leads to a significant improvement in neural network performance on a data set containing missing values in 59.4% of cases when compared to replacement of missing values with either series means or medians.
Collapse
|
12
|
Bauer M, Glenn T, Alda M, Aleksandrovich MA, Andreassen OA, Angelopoulos E, Ardau R, Ayhan Y, Baethge C, Bharathram SR, Bauer R, Baune BT, Becerra-Palars C, Bellivier F, Belmaker RH, Berk M, Bersudsky Y, Bicakci Ş, Birabwa-Oketcho H, Bjella TD, Bossini L, Cabrera J, Cheung EYW, Del Zompo M, Dodd S, Donix M, Etain B, Fagiolini A, Fountoulakis KN, Frye MA, Gonzalez-Pinto A, Gottlieb JF, Grof P, Harima H, Henry C, Isometsä ET, Janno S, Kapczinski F, Kardell M, Khaldi S, Kliwicki S, König B, Kot TL, Krogh R, Kunz M, Lafer B, Landén M, Larsen ER, Lewitzka U, Licht RW, Lopez-Jaramillo C, MacQueen G, Manchia M, Marsh W, Martinez-Cengotitabengoa M, Melle I, Meza-Urzúa F, Yee Ming M, Monteith S, Morken G, Mosca E, Munoz R, Mythri SV, Nacef F, Nadella RK, Nery FG, Nielsen RE, O'Donovan C, Omrani A, Osher Y, Østermark Sørensen H, Ouali U, Pica Ruiz Y, Pilhatsch M, Pinna M, da Ponte FDR, Quiroz D, Ramesar R, Rasgon N, Reddy MS, Reif A, Ritter P, Rybakowski JK, Sagduyu K, Scippa ÂM, Severus E, Simhandl C, Stein DJ, Strejilevich S, Subramaniam M, Sulaiman AH, Suominen K, Tagata H, Tatebayashi Y, Tondo L, Torrent C, Vaaler AE, Veeh J, Vieta E, Viswanath B, Yoldi-Negrete M, Zetin M, Zgueb Y, Whybrow PC. Solar insolation in springtime influences age of onset of bipolar I disorder. Acta Psychiatr Scand 2017; 136:571-582. [PMID: 28722128 DOI: 10.1111/acps.12772] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Accepted: 06/16/2017] [Indexed: 01/19/2023]
Abstract
OBJECTIVE To confirm prior findings that the larger the maximum monthly increase in solar insolation in springtime, the younger the age of onset of bipolar disorder. METHOD Data were collected from 5536 patients at 50 sites in 32 countries on six continents. Onset occurred at 456 locations in 57 countries. Variables included solar insolation, birth-cohort, family history, polarity of first episode and country physician density. RESULTS There was a significant, inverse association between the maximum monthly increase in solar insolation at the onset location, and the age of onset. This effect was reduced in those without a family history of mood disorders and with a first episode of mania rather than depression. The maximum monthly increase occurred in springtime. The youngest birth-cohort had the youngest age of onset. All prior relationships were confirmed using both the entire sample, and only the youngest birth-cohort (all estimated coefficients P < 0.001). CONCLUSION A large increase in springtime solar insolation may impact the onset of bipolar disorder, especially with a family history of mood disorders. Recent societal changes that affect light exposure (LED lighting, mobile devices backlit with LEDs) may influence adaptability to a springtime circadian challenge.
Collapse
Affiliation(s)
- M Bauer
- Department of Psychiatry and Psychotherapy, University Hospital Carl Gustav Carus, Technische Universität Dresden, Dresden, Germany
| | - T Glenn
- ChronoRecord Association, Fullerton, CA, USA
| | - M Alda
- Department of Psychiatry, Dalhousie University, Halifax, NS, Canada
| | | | - O A Andreassen
- NORMENT - K.G. Jebsen Centre for Psychosis Research, Division of Mental Health and Addiction, Oslo University Hospital & Institute of Clinical Medicine, University of Oslo, Oslo, Norway
| | - E Angelopoulos
- Department of Psychiatry, Medical School, Eginition Hospital, National and Capodistrian University of Athens, Athens, Greece
| | - R Ardau
- Section of Neurosciences and Clinical Pharmacology, Department of Biomedical Sciences, University of Cagliari, Sardinia, Italy
| | - Y Ayhan
- Department of Psychiatry, Hacettepe University Faculty of Medicine, Ankara, Turkey
| | - C Baethge
- Department of Psychiatry and Psychotherapy, University of Cologne Medical School, Cologne, Germany
| | | | - R Bauer
- Department of Psychiatry and Psychotherapy, University Hospital Carl Gustav Carus, Technische Universität Dresden, Dresden, Germany
| | - B T Baune
- Department of Psychiatry, School of Medicine, University of Adelaide, Adelaide, SA, Australia
| | - C Becerra-Palars
- National Institute of Psychiatry '"Ramón de la Fuente Muñiz", Mexico City, Mexico
| | - F Bellivier
- Psychiatry and Addiction Medicine, Assistance Publique - Hôpitaux de Paris, FondaMental Foundation, INSERM UMR-S1144, Denis Diderot University, René Descartes University, Paris, France
| | - R H Belmaker
- Department of Psychiatry, Faculty of Health Sciences, Beer Sheva Mental Health Center, Ben Gurion University of the Negev, Beer Sheva, Israel
| | - M Berk
- IMPACT Strategic Research Centre, School of Medicine, Barwon Health, Deakin University, Geelong, Vic., Australia.,Department of Psychiatry, Orygen, the National Centre for Excellence in Youth Mental Health, the Centre for Youth Mental Health and the Florey Institute for Neuroscience and Mental Health, University of Melbourne, Parkville, Vic., Australia
| | - Y Bersudsky
- Department of Psychiatry, Faculty of Health Sciences, Beer Sheva Mental Health Center, Ben Gurion University of the Negev, Beer Sheva, Israel
| | - Ş Bicakci
- Department of Psychiatry, Hacettepe University Faculty of Medicine, Ankara, Turkey
| | | | - T D Bjella
- NORMENT - K.G. Jebsen Centre for Psychosis Research, Division of Mental Health and Addiction, Oslo University Hospital & Institute of Clinical Medicine, University of Oslo, Oslo, Norway
| | - L Bossini
- Department of Molecular Medicine and Department of Mental Health (DAI), University of Siena and University of Siena Medical Center (AOUS), Siena, Italy
| | - J Cabrera
- Mood Disorders Clinic, Dr. Jose Horwitz Psychiatric Institute, Santiago de Chile, Chile
| | - E Y W Cheung
- Department of General Adult Psychiatry, Castle Peak Hospital, Tuen Mun, Hong Kong
| | - M Del Zompo
- Section of Neurosciences and Clinical Pharmacology, Department of Biomedical Sciences, University of Cagliari, Sardinia, Italy
| | - S Dodd
- IMPACT Strategic Research Centre, School of Medicine, Barwon Health, Deakin University, Geelong, Vic., Australia.,Department of Psychiatry, University of Melbourneo, Parkville, Vic, Australia
| | - M Donix
- Department of Psychiatry and Psychotherapy, University Hospital Carl Gustav Carus, Technische Universität Dresden, Dresden, Germany
| | - B Etain
- Psychiatry and Addiction Medicine, Assistance Publique - Hôpitaux de Paris, FondaMental Foundation, INSERM UMR-S1144, Denis Diderot University, René Descartes University, Paris, France
| | - A Fagiolini
- Department of Molecular Medicine and Department of Mental Health (DAI), University of Siena and University of Siena Medical Center (AOUS), Siena, Italy
| | - K N Fountoulakis
- Division of Neurosciences, 3rd Department of Psychiatry, School of Medicine, Aristotle University of Thessaloniki, Thessaloniki, Greece
| | - M A Frye
- Department of Psychiatry & Psychology, Mayo Clinic Depression Center, Mayo Clinic, Rochester, MN, USA
| | - A Gonzalez-Pinto
- Department of Psychiatry, University Hospital of Alava, University of the Basque Country, CIBERSAM, Vitoria, Spain
| | - J F Gottlieb
- Department of Psychiatry, Feinberg School of Medicine, Northwestern University, Chicago, IL, USA
| | - P Grof
- Mood Disorders Center of Ottawa, University of Toronto, Toronto, ON, Canada
| | - H Harima
- Department of Psychiatry, Tokyo Metropolitan Matsuzawa Hospital, Setagaya, Tokyo, Japan
| | - C Henry
- AP-HP, Hopitaux Universitaires Henri Mondor and INSERM U955 (IMRB) and Université Paris Est and Institut Pasteur, Unité Perception et Mémoire, Paris, France
| | - E T Isometsä
- Department of Psychiatry, University of Helsinki and Helsinki University Hospital, Helsinki, Finland.,National Institute for Health and Welfare, Helsinki, Finland
| | - S Janno
- Department of Psychiatry, University of Tartu, Tartu, Estonia
| | - F Kapczinski
- Department of Psychiatry, Universidade Federal do Rio Grande do Sul, Porto Alegre, Brazil
| | - M Kardell
- Department of Psychiatry and Neurochemistry, Institute of Neuroscience and Physiology, The Sahlgrenska Academy, University of Gothenburg, Gothenburg, Sweden
| | - S Khaldi
- Private practice, Tunis, Tunisia
| | - S Kliwicki
- Department of Adult Psychiatry, Poznan University of Medical Sciences, Poznan, Poland
| | - B König
- BIPOLAR Zentrum Wiener Neustadt, Wiener Neustadt, Austria
| | - T L Kot
- Khanty-Mansiysk Clinical Psychoneurological Hospital, Khanty-Mansiysk, Russia
| | - R Krogh
- Department of Affective Disorders, Q, Mood Disorders Research Unit, Aarhus University Hospital, Aarhus, Denmark
| | - M Kunz
- Department of Psychiatry, Universidade Federal do Rio Grande do Sul, Porto Alegre, Brazil
| | - B Lafer
- Bipolar Disorder Research Program, Department of Psychiatry, University of São Paulo Medical School, São Paulo, Brazil
| | - M Landén
- Department of Psychiatry and Neurochemistry, Institute of Neuroscience and Physiology, the Sahlgrenska Academy, University of Gothenburg, Gothenburg and Mölndal, Sweden.,Department of Medical Epidemiology and Biostatistics, Karolinska Institutet, Stockholm, Sweden
| | - E R Larsen
- Department of Affective Disorders, Q, Mood Disorders Research Unit, Aarhus University Hospital, Aarhus, Denmark
| | - U Lewitzka
- Department of Psychiatry and Psychotherapy, University Hospital Carl Gustav Carus, Technische Universität Dresden, Dresden, Germany
| | - R W Licht
- Unit for Psychiatric Research, Aalborg University Hospital, Psychiatry, Aalborg, Denmark.,Department of Clinical Medicine, Aalborg University, Aalborg, Denmark
| | - C Lopez-Jaramillo
- Mood Disorders Program, Hospital Universitario San Vicente Fundación, Research Group in Psychiatry, Department of Psychiatry, Faculty of Medicine, Universidad de Antioquia, Medellín, Colombia
| | - G MacQueen
- Department of Psychiatry, Faculty of Medicine, University of Calgary, Calgary, AB, Canada
| | - M Manchia
- Section of Psychiatry, Department of Medical Science and Public Health, University of Cagliari, Cagliari, Italy
| | - W Marsh
- Department of Psychiatry, University of Massachusetts, Worcester, MA, USA
| | - M Martinez-Cengotitabengoa
- Department of Psychiatry, University Hospital of Alava, University of the Basque Country, CIBERSAM, Vitoria, Spain
| | - I Melle
- NORMENT - K.G. Jebsen Centre for Psychosis Research, Division of Mental Health and Addiction, Oslo University Hospital & Institute of Clinical Medicine, University of Oslo, Oslo, Norway
| | - F Meza-Urzúa
- National Institute of Psychiatry '"Ramón de la Fuente Muñiz", Mexico City, Mexico
| | - M Yee Ming
- Department of General Psychiatry, Mood Disorders Unit, Institute of Mental Health, Singapore City, Singapore
| | - S Monteith
- Traverse City Campus, Michigan State University College of Human Medicine, Traverse City, MI, USA
| | - G Morken
- Department of Mental Health, Norwegian University of Science and Technology - NTNU, Trondheim, Norway.,Department of Psychiatry, St Olavs' University Hospital, Trondheim, Norway
| | - E Mosca
- Section of Neurosciences and Clinical Pharmacology, Department of Biomedical Sciences, University of Cagliari, Sardinia, Italy
| | - R Munoz
- Department of Psychiatry, University of California San Diego, San Diego, CA, USA
| | - S V Mythri
- Asha Bipolar Clinic, Asha Hospital, Hyderabad, Telangana, India
| | - F Nacef
- Razi Hospital, Faculty of Medicine, University of Tunis-El Manar, Tunis, Tunisia
| | - R K Nadella
- Department of Psychiatry, NIMHANS, Bangalore, India
| | - F G Nery
- Bipolar Disorder Research Program, Department of Psychiatry, University of São Paulo Medical School, São Paulo, Brazil
| | - R E Nielsen
- Unit for Psychiatric Research, Aalborg University Hospital, Psychiatry, Aalborg, Denmark.,Department of Clinical Medicine, Aalborg University, Aalborg, Denmark
| | - C O'Donovan
- Department of Psychiatry, Dalhousie University, Halifax, NS, Canada
| | - A Omrani
- Tunisian Bipolar Forum, Érable Médical Cabinet 324, Tunis, Tunisia
| | - Y Osher
- Department of Psychiatry, Faculty of Health Sciences, Beer Sheva Mental Health Center, Ben Gurion University of the Negev, Beer Sheva, Israel
| | - H Østermark Sørensen
- Unit for Psychiatric Research, Aalborg University Hospital, Psychiatry, Aalborg, Denmark
| | - U Ouali
- Razi Hospital, Faculty of Medicine, University of Tunis-El Manar, Tunis, Tunisia
| | - Y Pica Ruiz
- Hospital "Ángeles del Pedregal", Mexico City, Mexico
| | - M Pilhatsch
- Department of Psychiatry and Psychotherapy, University Hospital Carl Gustav Carus, Technische Universität Dresden, Dresden, Germany
| | - M Pinna
- Lucio Bini Mood Disorder Center, Cagliari, Italy
| | - F D R da Ponte
- Department of Psychiatry, Universidade Federal do Rio Grande do Sul, Porto Alegre, Brazil
| | - D Quiroz
- Deparment of Psychiatry, Diego Portales University, Santiago de Chile, Chile
| | - R Ramesar
- UCT/MRC Human Genetics Research Unit, Division of Human Genetics, Institute of Infectious Disease and Molecular Medicine, University of Cape Town, Cape Town, South Africa
| | - N Rasgon
- Department of Psychiatry and Behavioral Sciences, Stanford School of Medicine, Palo Alto, CA, USA
| | - M S Reddy
- Asha Bipolar Clinic, Asha Hospital, Hyderabad, Telangana, India
| | - A Reif
- Department of Psychiatry, Psychosomatic Medicine and Psychotherapy, University Hospital Frankfurt, Johann Wolfgang Goethe-Universität Frankfurt am Main, Frankfurt am Main, Germany
| | - P Ritter
- Department of Psychiatry and Psychotherapy, University Hospital Carl Gustav Carus, Technische Universität Dresden, Dresden, Germany
| | - J K Rybakowski
- Department of Adult Psychiatry, Poznan University of Medical Sciences, Poznan, Poland
| | - K Sagduyu
- Department of Psychiatry, University of Missouri Kansas City School of Medicine, Kansas City, MO, USA
| | - Â M Scippa
- Department of Neuroscience and Mental Health, Federal University of Bahia, Salvador, Brazil
| | - E Severus
- Department of Psychiatry and Psychotherapy, University Hospital Carl Gustav Carus, Technische Universität Dresden, Dresden, Germany
| | - C Simhandl
- BIPOLAR Zentrum Wiener Neustadt, Wiener Neustadt, Austria
| | - D J Stein
- Department of Psychiatry, MRC Unit on Risk & Resilience in Mental Disorders, University of Cape Town, Cape Town, South Africa
| | - S Strejilevich
- Bipolar Disorder Program, Neuroscience Institute, Favaloro University, Buenos Aires, Argentina
| | - M Subramaniam
- Research Division, Institute of Mental Health, Singapore City, Singapore
| | - A H Sulaiman
- Department of Psychological Medicine, Faculty of Medicine, University of Malaya, Kuala Lumpur, Malaysia
| | - K Suominen
- Department of Social Services and Health Care, Psychiatry, City of Helsinki, Helsinki, Finland
| | - H Tagata
- Department of Psychiatry, Tokyo Metropolitan Matsuzawa Hospital, Setagaya, Tokyo, Japan
| | - Y Tatebayashi
- Schizophrenia & Affective Disorders Research Project, Tokyo Metropolitan Institute of Medical Science, Seatagaya, Tokyo, Japan
| | - L Tondo
- McLean Hospital-Harvard Medical School, Boston, MA, USA.,Mood Disorder Lucio Bini Centers, Cagliari e Roma, Italy
| | - C Torrent
- Clinical Institute of Neuroscience, Hospital Clinic, University of Barcelona, IDIBAPS, CIBERSAM, Barcelona, Catalonia, Spain
| | - A E Vaaler
- Department of Mental Health, Norwegian University of Science and Technology - NTNU, Trondheim, Norway.,Department of Psychiatry, St Olavs' University Hospital, Trondheim, Norway
| | - J Veeh
- Department of Psychiatry, Psychosomatic Medicine and Psychotherapy, University Hospital Frankfurt, Johann Wolfgang Goethe-Universität Frankfurt am Main, Frankfurt am Main, Germany
| | - E Vieta
- Clinical Institute of Neuroscience, Hospital Clinic, University of Barcelona, IDIBAPS, CIBERSAM, Barcelona, Catalonia, Spain
| | - B Viswanath
- Department of Psychiatry, NIMHANS, Bangalore, India
| | - M Yoldi-Negrete
- Consejo Nacional de Ciencia y Tecnología - Instituto Nacional de Psiquiatría Ramón de la Fuente Muñiz, Ciudad de México, Mexico
| | - M Zetin
- Department of Psychology, Chapman University, Orange, CA, USA
| | - Y Zgueb
- Razi Hospital, Faculty of Medicine, University of Tunis-El Manar, Tunis, Tunisia
| | - P C Whybrow
- Department of Psychiatry and Biobehavioral Sciences, Semel Institute for Neuroscience and Human Behavior University of California Los Angeles (UCLA), Los Angeles, CA, USA
| |
Collapse
|
13
|
Outhwaite H, Evans S, Bell D, Manchini M, Stansfield J, Marsh W, South J. A pilot project to develop community-centred public health practice examples, England, UK. Eur J Public Health 2017. [DOI: 10.1093/eurpub/ckx187.365] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Affiliation(s)
| | | | - D Bell
- Public Health England, Leeds, UK
| | | | | | - W Marsh
- Public Health England, Cambridge, UK
| | | |
Collapse
|
14
|
Affiliation(s)
| | - W Marsh
- Department of Psychological Medicine, Southern General Hospital, Glasgow G51 4TF
| |
Collapse
|
15
|
Perkins ZB, Yet B, Glasgow S, Cole E, Marsh W, Brohi K, Rasmussen TE, Tai NRM. Meta-analysis of prognostic factors for amputation following surgical repair of lower extremity vascular trauma. Br J Surg 2015; 102:436-50. [DOI: 10.1002/bjs.9689] [Citation(s) in RCA: 54] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/06/2014] [Revised: 08/16/2014] [Accepted: 09/29/2014] [Indexed: 11/08/2022]
Abstract
Abstract
Background
Lower extremity vascular trauma (LEVT) is a major cause of amputation. A clear understanding of prognostic factors for amputation is important to inform surgical decision-making, patient counselling and risk stratification. The aim was to develop an understanding of prognostic factors for amputation following surgical repair of LEVT.
Methods
A systematic review was conducted to identify potential prognostic factors. Bayesian meta-analysis was used to calculate an absolute (pooled proportion) and relative (pooled odds ratio, OR) measure of the amputation risk for each factor.
Results
Forty-five studies, totalling 3187 discrete LEVT repairs, were included. The overall amputation rate was 10·0 (95 per cent credible interval 7·4 to 13·1) per cent. Significant prognostic factors for secondary amputation included: associated major soft tissue injury (26 versus 8 per cent for no soft tissue injury; OR 5·80), compartment syndrome (28 versus 6 per cent; OR 5·11), multiple arterial injuries (18 versus 9 per cent; OR 4·85), duration of ischaemia exceeding 6 h (24 versus 5 per cent; OR 4·40), associated fracture (14 versus 2 per cent; OR 4·30), mechanism of injury (blast 19 per cent, blunt 16 per cent, penetrating 5 per cent), anatomical site of injury (iliac 18 per cent, popliteal 14 per cent, tibial 10 per cent, femoral 4 per cent), age over 55 years (16 versus 9 per cent; OR 3·03) and sex (men 7 per cent versus women 8 per cent; OR 0·64). Shock and nerve or venous injuries were not significant prognostic factors for secondary amputation.
Conclusion
A significant proportion of patients who undergo lower extremity vascular trauma repair will require secondary amputation. This meta-analysis describes significant prognostic factors needed to inform surgical judgement, risk assessment and patient counselling.
Collapse
Affiliation(s)
- Z B Perkins
- Centre for Trauma Sciences, Queen Mary, University of London, London, UK
| | - B Yet
- Department of Computer Science, Queen Mary, University of London, London, UK
| | - S Glasgow
- Centre for Trauma Sciences, Queen Mary, University of London, London, UK
| | - E Cole
- Centre for Trauma Sciences, Queen Mary, University of London, London, UK
| | - W Marsh
- Department of Computer Science, Queen Mary, University of London, London, UK
| | - K Brohi
- Centre for Trauma Sciences, Queen Mary, University of London, London, UK
| | - T E Rasmussen
- US Army Medical Research and Materiel Command, Fort Detrick, Maryland, USA
| | - N R M Tai
- Centre for Trauma Sciences, Queen Mary, University of London, London, UK
- Academic Department of Military Surgery and Trauma, Royal Centre for Defence Medicine, Birmingham, UK
| |
Collapse
|
16
|
Aguilar-Arevalo A, Brown B, Bugel L, Cheng G, Church E, Conrad J, Dharmapalan R, Djurcic Z, Finley D, Ford R, Garcia F, Garvey G, Grange J, Huelsnitz W, Ignarra C, Imlay R, Johnson R, Karagiorgi G, Katori T, Kobilarcik T, Louis W, Mariani C, Marsh W, Mills G, Mirabal J, Moore C, Mousseau J, Nienaber P, Osmanov B, Pavlovic Z, Perevalov D, Polly C, Ray H, Roe B, Russell A, Shaevitz M, Spitz J, Stancu I, Tayloe R, Van de Water R, Wascko M, White D, Wickremasinghe D, Zeller G, Zimmerman E. Measurement of the antineutrino neutral-current elastic differential cross section. Int J Clin Exp Med 2015. [DOI: 10.1103/physrevd.91.012004] [Citation(s) in RCA: 29] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
|
17
|
Bauer M, Glenn T, Alda M, Sagduyu K, Marsh W, Grof P, Munoz R, Baethge C, Lewitzka U, Pilhatsch M, Bauer R, Whybrow PC. Regularity in daily mood stabilizer dosage taken by patients with bipolar disorder. Pharmacopsychiatry 2013; 46:163-8. [PMID: 23797414 DOI: 10.1055/s-0033-1343398] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
Abstract
OBJECTIVE The aim of this study was to investigate regularity in the daily mood stabilizer dosage taken by patients with bipolar disorder, and identify factors associated with irregularity. METHODS Self-reported daily mood and medication data were available from 206 patients who took the same mood stabilizer for ≥100 days. Approximate entropy (ApEn) was used to measure serial regularity in daily mood stabilizer dosage. Generalized estimating equations (GEE) were used to estimate if demographic or clinical variables were associated with ApEn. RESULTS There was a wide range of regularity in the daily mood stabilizer dosage. The mean percent of days of missing doses was 13.6%. The number of psychotropic medications (p=0.007), pill burden (p=0.004) and percent of days with depressed mood (p=0.013) were associated with more irregularity, while the percent of days euthymic (p=0.014) was associated with less irregularity. The percent of days missing doses was not associated with the number of medications, pill burden or mood ratings. DISCUSSION Patients may have irregularity in daily dosage in spite of a low percent of days missing doses. Psychotropic medication regimen complexity and depression are associated with increased dosage irregularity. Research is needed on how irregularity in daily dosage impacts the continuity of drug action of mood stabilizers.
Collapse
Affiliation(s)
- M Bauer
- Department of Psychiatry and Psychotherapy, Universitätsklinikum Carl Gustav Carus, Technische Universität Dresden, Dresden, Germany.
| | | | | | | | | | | | | | | | | | | | | | | |
Collapse
|
18
|
Aguilar-Arevalo AA, Brown BC, Bugel L, Cheng G, Church ED, Conrad JM, Dharmapalan R, Djurcic Z, Finley DA, Ford R, Garcia FG, Garvey GT, Grange J, Huelsnitz W, Ignarra C, Imlay R, Johnson RA, Karagiorgi G, Katori T, Kobilarcik T, Louis WC, Mariani C, Marsh W, Mills GB, Mirabal J, Moore CD, Mousseau J, Nienaber P, Osmanov B, Pavlovic Z, Perevalov D, Polly CC, Ray H, Roe BP, Russell AD, Shaevitz MH, Spitz J, Stancu I, Tayloe R, Van de Water RG, White DH, Wickremasinghe DA, Zeller GP, Zimmerman ED. Improved search for ν¯(μ)→ν¯(e) oscillations in the MiniBooNE experiment. Phys Rev Lett 2013; 110:161801. [PMID: 23679593 DOI: 10.1103/physrevlett.110.161801] [Citation(s) in RCA: 32] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/28/2013] [Indexed: 06/02/2023]
Abstract
The MiniBooNE experiment at Fermilab reports results from an analysis of ν[over ¯](e) appearance data from 11.27×10(20) protons on target in the antineutrino mode, an increase of approximately a factor of 2 over the previously reported results. An event excess of 78.4±28.5 events (2.8σ) is observed in the energy range 200<E(ν)(QE)<1250 MeV. If interpreted in a two-neutrino oscillation model, ν[over ¯](μ)→ν[over ¯](e), the best oscillation fit to the excess has a probability of 66% while the background-only fit has a χ(2) probability of 0.5% relative to the best fit. The data are consistent with antineutrino oscillations in the 0.01<Δm(2)<1.0 eV(2) range and have some overlap with the evidence for antineutrino oscillations from the Liquid Scintillator Neutrino Detector. All of the major backgrounds are constrained by in situ event measurements so nonoscillation explanations would need to invoke new anomalous background processes. The neutrino mode running also shows an excess at low energy of 162.0±47.8 events (3.4σ) but the energy distribution of the excess is marginally compatible with a simple two neutrino oscillation formalism. Expanded models with several sterile neutrinos can reduce the incompatibility by allowing for CP violating effects between neutrino and antineutrino oscillations.
Collapse
Affiliation(s)
- A A Aguilar-Arevalo
- Instituto de Ciencias Nucleares, Universidad Nacional Autónoma de México, 04510 México, D.F., Mexico
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | |
Collapse
|
19
|
Aguilar-Arevalo AA, Anderson CE, Brice SJ, Brown BC, Bugel L, Conrad JM, Dharmapalan R, Djurcic Z, Fleming BT, Ford R, Garcia FG, Garvey GT, Mirabal J, Grange J, Green JA, Imlay R, Johnson RA, Karagiorgi G, Katori T, Kobilarcik T, Linden SK, Louis WC, Mahn KBM, Marsh W, Mauger C, Metcalf W, Mills GB, Moore CD, Mousseau J, Nelson RH, Nguyen V, Nienaber P, Nowak JA, Osmanov B, Pavlovic Z, Perevalov D, Polly CC, Ray H, Roe BP, Russell AD, Schirato R, Shaevitz MH, Sorel M, Spitz J, Stancu I, Stefanski RJ, Tayloe R, Tzanov M, Van de Water RG, Wascko MO, White DH, Wilking MJ, Zeller GP, Zimmerman ED. Event excess in the MiniBooNE search for ¯νμ→¯νe oscillations. Phys Rev Lett 2010; 105:181801. [PMID: 21231096 DOI: 10.1103/physrevlett.105.181801] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/08/2010] [Indexed: 05/30/2023]
Abstract
The MiniBooNE experiment at Fermilab reports results from a search for ¯ν_{μ}→¯ν_{e} oscillations, using a data sample corresponding to 5.66×10²⁰ protons on target. An excess of 20.9±14.0 events is observed in the energy range 475<E_{ν}^{QE}<1250 MeV, which, when constrained by the observed ¯ν_{μ} events, has a probability for consistency with the background-only hypothesis of 0.5%. On the other hand, fitting for ¯ν_{μ}→¯ν_{e} oscillations, the best-fit point has a χ² probability of 8.7%. The data are consistent with ¯ν_{μ}→¯ν_{e} oscillations in the 0.1 to 1.0 eV² Δm² range and with the evidence for antineutrino oscillations from the Liquid Scintillator Neutrino Detector at Los Alamos National Laboratory.
Collapse
Affiliation(s)
- A A Aguilar-Arevalo
- Instituto de Ciencias Nucleares, Universidad Nacional Autónoma de México, D.F. 04510, México
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | |
Collapse
|
20
|
Aguilar-Arevalo AA, Anderson CE, Bazarko AO, Brice SJ, Brown BC, Bugel L, Cao J, Coney L, Conrad JM, Cox DC, Curioni A, Djurcic Z, Finley DA, Fisher M, Fleming BT, Ford R, Garcia FG, Garvey GT, Grange J, Green C, Green JA, Hart TL, Hawker E, Imlay R, Johnson RA, Karagiorgi G, Kasper P, Katori T, Kobilarcik T, Kourbanis I, Koutsoliotas S, Laird EM, Linden SK, Link JM, Liu Y, Liu Y, Louis WC, Mahn KBM, Marsh W, Mauger C, McGary VT, McGregor G, Metcalf W, Meyers PD, Mills F, Mills GB, Monroe J, Moore CD, Mousseau J, Nelson RH, Nienaber P, Nowak JA, Osmanov B, Ouedraogo S, Patterson RB, Pavlovic Z, Perevalov D, Polly CC, Prebys E, Raaf JL, Ray H, Roe BP, Russell AD, Sandberg V, Schirato R, Schmitz D, Shaevitz MH, Shoemaker FC, Smith D, Soderberg M, Sorel M, Spentzouris P, Spitz J, Stancu I, Stefanski RJ, Sung M, Tanaka HA, Tayloe R, Tzanov M, Van de Water RG, Wascko MO, White DH, Wilking MJ, Yang HJ, Zeller GP, Zimmerman ED. Search for core-collapse supernovae using the MiniBooNE neutrino detector. Int J Clin Exp Med 2010. [DOI: 10.1103/physrevd.81.032001] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
|
21
|
Aguilar-Arevalo AA, Anderson CE, Brice SJ, Brown BC, Bugel L, Conrad JM, Djurcic Z, Fleming BT, Ford R, Garcia FG, Garvey GT, Gonzales J, Grange J, Green C, Green JA, Imlay R, Johnson RA, Karagiorgi G, Katori T, Kobilarcik T, Linden SK, Louis WC, Mahn KBM, Marsh W, Mauger C, McGary VT, Metcalf W, Mills GB, Moore CD, Mousseau J, Nelson RH, Nienaber P, Nowak JA, Osmanov B, Pavlovic Z, Perevalov D, Polly CC, Ray H, Roe BP, Russell AD, Shaevitz MH, Sorel M, Spitz J, Stancu I, Stefanski RJ, Tayloe R, Tzanov M, Van de Water RG, Wascko MO, White DH, Wilking MJ, Zeller GP, Zimmerman ED. Search for electron antineutrino appearance at the deltam(2) approximately 1 eV(2) Scale. Phys Rev Lett 2009; 103:111801. [PMID: 19792365 DOI: 10.1103/physrevlett.103.111801] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/13/2009] [Indexed: 05/28/2023]
Abstract
The MiniBooNE Collaboration reports initial results from a search for nu(mu)-->nu(e) oscillations. A signal-blind analysis was performed using a data sample corresponding to 3.39x10(20) protons on target. The data are consistent with background prediction across the full range of neutrino energy reconstructed assuming quasielastic scattering, 200<E(nu)(QE)<3000 MeV: 144 electronlike events have been observed in this energy range, compared to an expectation of 139.2+/-17.6 events. No significant excess of events has been observed, both at low energy, 200-475 MeV, and at high energy, 475-1250 MeV. The data are inconclusive with respect to antineutrino oscillations suggested by data from the Liquid Scintillator Neutrino Detector at Los Alamos National Laboratory.
Collapse
Affiliation(s)
- A A Aguilar-Arevalo
- Instituto de Ciencias Nucleares, Universidad Nacional Autónoma de México, Distrito Federal 04510, México
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | |
Collapse
|
22
|
Aguilar-Arevalo AA, Anderson CE, Bazarko AO, Brice SJ, Brown BC, Bugel L, Cao J, Coney L, Conrad JM, Cox DC, Curioni A, Djurcic Z, Finley DA, Fleming BT, Ford R, Garcia FG, Garvey GT, Green C, Green JA, Hart TL, Hawker E, Imlay R, Johnson RA, Karagiorgi G, Kasper P, Katori T, Kobilarcik T, Kourbanis I, Koutsoliotas S, Laird EM, Linden SK, Link JM, Liu Y, Liu Y, Louis WC, Mahn KBM, Marsh W, McGary VT, McGregor G, Metcalf W, Meyers PD, Mills F, Mills GB, Monroe J, Moore CD, Nelson RH, Nienaber P, Nowak JA, Osmanov B, Ouedraogo S, Patterson RB, Perevalov D, Polly CC, Prebys E, Raaf JL, Ray H, Roe BP, Russell AD, Sandberg V, Schirato R, Schmitz D, Shaevitz MH, Shoemaker FC, Smith D, Soderberg M, Sorel M, Spentzouris P, Spitz J, Stancu I, Stefanski RJ, Sung M, Tanaka HA, Tayloe R, Tzanov M, Van de Water R, Wascko MO, White DH, Wilking MJ, Yang HJ, Zeller GP, Zimmerman ED. Measurement of the ratio of the numu charged-current single-pion production to quasielastic scattering with a 0.8 GeV neutrino beam on mineral oil. Phys Rev Lett 2009; 103:081801. [PMID: 19792715 DOI: 10.1103/physrevlett.103.081801] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/20/2009] [Indexed: 05/28/2023]
Abstract
Using high statistics samples of charged-current numu interactions, the MiniBooNE [corrected] Collaboration reports a measurement of the single-charged-pion production to quasielastic cross section ratio on mineral oil (CH2), both with and without corrections for hadron reinteractions in the target nucleus. The result is provided as a function of neutrino energy in the range 0.4 GeV<Enu<2.4 GeV with 11% precision in the region of highest statistics. The results are consistent with previous measurements and the prediction from historical neutrino calculations.
Collapse
|
23
|
Aguilar-Arevalo AA, Anderson CE, Bazarko AO, Brice SJ, Brown BC, Bugel L, Cao J, Coney L, Conrad JM, Cox DC, Curioni A, Djurcic Z, Finley DA, Fleming BT, Ford R, Garcia FG, Garvey GT, Grange J, Green C, Green JA, Hart TL, Hawker E, Imlay R, Johnson RA, Karagiorgi G, Kasper P, Katori T, Kobilarcik T, Kourbanis I, Koutsoliotas S, Laird EM, Linden SK, Link JM, Liu Y, Liu Y, Louis WC, Mahn KBM, Marsh W, Mauger C, McGary VT, McGregor G, Metcalf W, Meyers PD, Mills F, Mills GB, Monroe J, Moore CD, Mousseau J, Nelson RH, Nienaber P, Nowak JA, Osmanov B, Ouedraogo S, Patterson RB, Pavlovic Z, Perevalov D, Polly CC, Prebys E, Raaf JL, Ray H, Roe BP, Russell AD, Sandberg V, Schirato R, Schmitz D, Shaevitz MH, Shoemaker FC, Smith D, Soderberg M, Sorel M, Spentzouris P, Spitz J, Stancu I, Stefanski RJ, Sung M, Tanaka HA, Tayloe R, Tzanov M, Van de Water RG, Wascko MO, White DH, Wilking MJ, Yang HJ, Zeller GP, Zimmerman ED. Search for muon neutrino and antineutrino disappearance in MiniBooNE. Phys Rev Lett 2009; 103:061802. [PMID: 19792551 DOI: 10.1103/physrevlett.103.061802] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/11/2009] [Indexed: 05/28/2023]
Abstract
The MiniBooNE Collaboration reports a search for nu_{micro} and nu[over]_{micro} disappearance in the Deltam;{2} region of 0.5-40 eV;{2}. These measurements are important for constraining models with extra types of neutrinos, extra dimensions, and CPT violation. Fits to the shape of the nu_{micro} and nu[over]_{micro} energy spectra reveal no evidence for disappearance at the 90% confidence level (C.L.) in either mode. The test of nu[over]_{micro} disappearance probes a region below Deltam;{2} = 40 eV;{2} never explored before.
Collapse
|
24
|
Adamson P, Aguilar-Arevalo AA, Anderson CE, Bazarko AO, Bishai M, Brice SJ, Brown BC, Bugel L, Cao J, Choudhary BC, Coney L, Conrad JM, Cox DC, Curioni A, Djurcic Z, Finley DA, Fleming BT, Ford R, Gallagher HR, Garcia FG, Garvey GT, Green C, Green JA, Harris D, Hart TL, Hawker E, Hylen J, Imlay R, Johnson RA, Karagiorgi G, Kasper P, Katori T, Kobilarcik T, Kopp S, Kourbanis I, Koutsoliotas S, Laird EM, Linden SK, Link JM, Liu Y, Liu Y, Loiacono L, Louis WC, Marchionni A, Mahn KBM, Marsh W, McGregor G, Messier MD, Metcalf W, Meyers PD, Mills F, Mills GB, Monroe J, Moore CD, Nelson JK, Nelson RH, Nguyen VT, Nienaber P, Nowak JA, Ouedraogo S, Patterson RB, Pavlovic Z, Perevalov D, Polly CC, Prebys E, Raaf JL, Ray H, Roe BP, Russell AD, Sandberg V, Schirato R, Schmitz D, Shaevitz MH, Shoemaker FC, Smart W, Smith D, Sodeberg M, Sorel M, Spentzouris P, Stancu I, Stefanski RJ, Sung M, Tanaka HA, Tayloe R, Tzanov M, Vahle P, Van de Water R, Viren B, Wascko MO, White DH, Wilking MJ, Yang HJ, Yumiceva FX, Zeller GP, Zimmerman ED, Zwaska R. Measurement of numicro and nue events in an off-axis horn-focused neutrino beam. Phys Rev Lett 2009; 102:211801. [PMID: 19519094 DOI: 10.1103/physrevlett.102.211801] [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] [Subscribe] [Scholar Register] [Received: 09/12/2008] [Indexed: 05/27/2023]
Abstract
We report the first observation of off-axis neutrino interactions in the MiniBooNE detector from the NuMI beam line at Fermilab. The MiniBooNE detector is located 745 m from the NuMI production target, at 110 mrad angle (6.3 degrees) with respect to the NuMI beam axis. Samples of charged-current quasielastic numicro and nue interactions are analyzed and found to be in agreement with expectation. This provides a direct verification of the expected pion and kaon contributions to the neutrino flux and validates the modeling of the NuMI off-axis beam.
Collapse
Affiliation(s)
- P Adamson
- Fermi National Accelerator Laboratory, Batavia, Illinois 60510, USA
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | |
Collapse
|
25
|
Aguilar-Arevalo AA, Anderson CE, Bazarko AO, Brice SJ, Brown BC, Bugel L, Cao J, Coney L, Conrad JM, Cox DC, Curioni A, Djurcic Z, Finley DA, Fleming BT, Ford R, Garcia FG, Garvey GT, Green C, Green JA, Hart TL, Hawker E, Imlay R, Johnson RA, Karagiorgi G, Kasper P, Katori T, Kobilarcik T, Kourbanis I, Koutsoliotas S, Laird EM, Linden SK, Link JM, Liu Y, Liu Y, Louis WC, Mahn KBM, Marsh W, McGregor G, Metcalf W, Meyers PD, Mills F, Mills GB, Monroe J, Moore CD, Nelson RH, Nguyen VT, Nienaber P, Nowak JA, Ouedraogo S, Patterson RB, Perevalov D, Polly CC, Prebys E, Raaf JL, Ray H, Roe BP, Russell AD, Sandberg V, Schirato R, Schmitz D, Shaevitz MH, Shoemaker FC, Smith D, Sodeberg M, Sorel M, Spentzouris P, Stancu I, Stefanski RJ, Sung M, Tanaka HA, Tayloe R, Tzanov M, Van de Water R, Wascko MO, White DH, Wilking MJ, Yang HJ, Zeller GP, Zimmerman ED. Unexplained excess of electronlike events from a 1-GeV neutrino beam. Phys Rev Lett 2009; 102:101802. [PMID: 19392103 DOI: 10.1103/physrevlett.102.101802] [Citation(s) in RCA: 14] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/14/2008] [Indexed: 05/27/2023]
Abstract
The MiniBooNE Collaboration observes unexplained electronlike events in the reconstructed neutrino energy range from 200 to 475 MeV. With 6.46x10;{20} protons on target, 544 electronlike events are observed in this energy range, compared to an expectation of 415.2+/-43.4 events, corresponding to an excess of 128.8+/-20.4+/-38.3 events. The shape of the excess in several kinematic variables is consistent with being due to either nu_{e} and nu[over ]_{e} charged-current scattering or nu_{mu} neutral-current scattering with a photon in the final state. No significant excess of events is observed in the reconstructed neutrino energy range from 475 to 1250 MeV, where 408 events are observed compared to an expectation of 385.9+/-35.7 events.
Collapse
|
26
|
Marsh W, Marsh H. Management of Closed Head Injuries. Semin Respir Crit Care Med 2008. [DOI: 10.1055/s-2007-1012210] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
|
27
|
Aguilar-Arevalo AA, Bazarko AO, Brice SJ, Brown BC, Bugel L, Cao J, Coney L, Conrad JM, Cox DC, Curioni A, Djurcic Z, Finley DA, Fleming BT, Ford R, Garcia FG, Garvey GT, Green C, Green JA, Hart TL, Hawker E, Imlay R, Johnson RA, Kasper P, Katori T, Kobilarcik T, Kourbanis I, Koutsoliotas S, Laird EM, Link JM, Liu Y, Liu Y, Louis WC, Mahn KBM, Marsh W, Martin PS, McGregor G, Metcalf W, Meyers PD, Mills F, Mills GB, Monroe J, Moore CD, Nelson RH, Nienaber P, Ouedraogo S, Patterson RB, Perevalov D, Polly CC, Prebys E, Raaf JL, Ray H, Roe BP, Russell AD, Sandberg V, Schirato R, Schmitz D, Shaevitz MH, Shoemaker FC, Smith D, Sorel M, Spentzouris P, Stancu I, Stefanski RJ, Sung M, Tanaka HA, Tayloe R, Tzanov M, Van de Water R, Wascko MO, White DH, Wilking MJ, Yang HJ, Zeller GP, Zimmerman ED. Measurement of muon neutrino quasielastic scattering on carbon. Phys Rev Lett 2008; 100:032301. [PMID: 18232974 DOI: 10.1103/physrevlett.100.032301] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/08/2007] [Indexed: 05/25/2023]
Abstract
The observation of neutrino oscillations is clear evidence for physics beyond the standard model. To make precise measurements of this phenomenon, neutrino oscillation experiments, including MiniBooNE, require an accurate description of neutrino charged current quasielastic (CCQE) cross sections to predict signal samples. Using a high-statistics sample of nu_(mu) CCQE events, MiniBooNE finds that a simple Fermi gas model, with appropriate adjustments, accurately characterizes the CCQE events observed in a carbon-based detector. The extracted parameters include an effective axial mass, M_(A)(eff)=1.23+/-0.20 GeV, that describes the four-momentum dependence of the axial-vector form factor of the nucleon, and a Pauli-suppression parameter, kappa=1.019+/-0.011. Such a modified Fermi gas model may also be used by future accelerator-based experiments measuring neutrino oscillations on nuclear targets.
Collapse
|
28
|
Mason D, Brau J, Drucker RB, Frey R, Spentzouris P, Conrad J, Fleming BT, Formaggio J, Kim JH, Koutsoliotas S, McNulty C, Romosan A, Shaevitz MH, Stern EG, Vaitaitis A, Zimmerman ED, Johnson RA, Suwonjandee N, Vakili M, Bernstein RH, Bugel L, Lamm MJ, Marsh W, Nienaber P, Tobien N, Yu J, Adams T, Alton A, Bolton T, Goldman J, Goncharov M, de Barbaro L, Buchholz D, Schellman H, Zeller GP, Boyd S, McDonald J, Naples D, Radescu V, Tzanov M, Avvakumov S, de Barbaro P, Bodek A, Budd H, Harris DA, McFarland KS, Sakumoto WK, Yang UK. Measurement of the nucleon strange-antistrange asymmetry at next-to-leading order in QCD from NuTeV Dimuon data. Phys Rev Lett 2007; 99:192001. [PMID: 18233069 DOI: 10.1103/physrevlett.99.192001] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/25/2007] [Indexed: 05/25/2023]
Abstract
We present a new measurement of the difference between the nucleon strange and antistrange quark distributions from dimuon events recorded by the NuTeV experiment at Fermilab. This analysis is the first to use a complete next to leading order QCD description of charm production from neutrino scattering. Dimuon events in neutrino deep inelastic scattering allow direct and independent study of the strange and antistrange content of the nucleon. We find a positive strange asymmetry with a significance of 1.6sigma. We also report a new measurement of the charm mass.
Collapse
Affiliation(s)
- D Mason
- University of Oregon, Eugene, OR, USA
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | |
Collapse
|
29
|
Aguilar-Arevalo AA, Bazarko AO, Brice SJ, Brown BC, Bugel L, Cao J, Coney L, Conrad JM, Cox DC, Curioni A, Djurcic Z, Finley DA, Fleming BT, Ford R, Garcia FG, Garvey GT, Green C, Green JA, Hart TL, Hawker E, Imlay R, Johnson RA, Kasper P, Katori T, Kobilarcik T, Kourbanis I, Koutsoliotas S, Laird EM, Link JM, Liu Y, Liu Y, Louis WC, Mahn KBM, Marsh W, Martin PS, McGregor G, Metcalf W, Meyers PD, Mills F, Mills GB, Monroe J, Moore CD, Nelson RH, Nienaber P, Ouedraogo S, Patterson RB, Perevalov D, Polly CC, Prebys E, Raaf JL, Ray H, Roe BP, Russell AD, Sandberg V, Schirato R, Schmitz D, Shaevitz MH, Shoemaker FC, Smith D, Sorel M, Spentzouris P, Stancu I, Stefanski RJ, Sung M, Tanaka HA, Tayloe R, Tzanov M, Van de Water R, Wascko MO, White DH, Wilking MJ, Yang HJ, Zeller GP, Zimmerman ED. Search for electron neutrino appearance at the Delta m2 approximately 1 eV2 scale. Phys Rev Lett 2007; 98:231801. [PMID: 17677898 DOI: 10.1103/physrevlett.98.231801] [Citation(s) in RCA: 26] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/20/2007] [Indexed: 05/16/2023]
Abstract
The MiniBooNE Collaboration reports first results of a search for nu e appearance in a nu mu beam. With two largely independent analyses, we observe no significant excess of events above the background for reconstructed neutrino energies above 475 MeV. The data are consistent with no oscillations within a two-neutrino appearance-only oscillation model.
Collapse
|
30
|
Gruttadauria S, Mandalà L, Vasta F, Cintorino D, Musumeci A, Marsh W, Marcos A, Gridelli B. Improvements in hepatic parenchymal transection for living related liver donor. Transplant Proc 2006; 37:2589-91. [PMID: 16182753 DOI: 10.1016/j.transproceed.2005.06.062] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
Abstract
INTRODUCTION To eliminate mortality and morbidity risk in living related liver donors, we developed a new surgical technique to resect hepatic parenchyma using an ultrasonic surgical aspirator in association with a monopolar floating ball cautery. METHODS We performed 17 right hepatectomies and 2 left hepatectomies using this technique. We performed a retrospective analysis of perioperative mortality, length of hospitalization (LOS), blood transfused during surgery (IBT), intraoperative blood lost (IBL), biliary complications (BC), and aspartate aminotransferase (AST)/alanine aminotransferase (ALT) peak in the first postoperative week. This group of patients (Group A) was compared, using the analysis of variance (ANOVA) test (P < .05) with 2 different groups of 19 patients: Group B with liver neoplasms that had the same technique as Group A, and Group C wherein a crushing clamp technique was used. RESULTS All of the analyzed variables showed significative statistical differences, especially between Group A and Group C (IBL, P < .000; IBT, P < .006; LOS, P < .028; BC, P < .000; AST peak, P < .041; and ALT peak, P < .023). DISCUSSION The association of these 2 techniques seems to reduce the LOS, and the need for intraoperative blood transfusions. Moreover, the surgical complications (biliary leaks) and the postoperative parenchymal cytonecrosis seem to be less using this technique.
Collapse
Affiliation(s)
- S Gruttadauria
- Department of Surgery, Istituto Mediterraneo per i Trapianti e Terapie ad Alta Specializzazione IsMeTT-UPMC Italy, Palermo, Italy.
| | | | | | | | | | | | | | | |
Collapse
|
31
|
Jain A, Marcos A, Reyes J, Mazariagos G, Kashyap R, Eghtesad B, Marsh W, Fontas P, De Vera M, Costa G, Patel K, Gadomski M, Starzl T, Fung J. Tacrolimus for Primary Liver Transplantation: 12 to 15 Years Actual Follow-Up With Safety Profile. Transplant Proc 2005; 37:1207-10. [PMID: 15848671 DOI: 10.1016/j.transproceed.2004.12.077] [Citation(s) in RCA: 24] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
Abstract
BACKGROUND Tacrolimus has been increasingly used for liver transplantation during the last decade. The drug has immunological advantages in short- to medium-term follow-up. However, data on longitudinal follow-up are lacking. AIM The aim of the present report was to examine the impact of tacrolimus in primary adult and pediatric liver transplantation (LTx) patients. MATERIAL AND METHOD One thousand consecutive primary LTx patients were performed under tacrolimus between August 1989 and December 1992 were followed up until August 2004. Mean follow-up was 13.4 +/- 0.92 (range, 11.7-15) years. There were 600 males and 400 females with a mean age of 42.6 +/- 20.2 years. There were 166 children (age 18 years or younger) and 834 adults, of whom 204 were older than 60 years (seniors). RESULTS Four hundred ninety-seven (49.7%) patients died in the follow-up period. The overall 15-year actuarial patient survival rate was 51.4%. The survival rate for children was significantly better (81.3%) compared with adults (47.5%) and seniors (36.4%) (P = .0001). One hundred fifty-one patients received a second LTx, 22 patients received a third LTx, and 4 patients received a fourth LTx. Over all 15 years the actuarial graft survival rate was 46.1%. At last follow-up, 69.1% of patients were off steroids. The majority of late deaths were due to age-related complications, recurrence of disease, and De novo cancers. CONCLUSION The data on longitudinal follow-up have shown actuarial survival for children to be significantly better than in adults and seniors. Graft loss from immunological causes are rare even with long-term follow-up.
Collapse
Affiliation(s)
- A Jain
- Strong Memorial Hospital, Department of Surgery, Transplant Division, University of Rochester, Rochester, NY 14642, USA.
| | | | | | | | | | | | | | | | | | | | | | | | | | | |
Collapse
|
32
|
Geller DA, Marsh W, Carr BI. Gemcitabine by hepatic artery chemoembolization for unresectable hepatocellular carcinoma (HCC) and cholangiocarcinoma (CCC). J Clin Oncol 2004. [DOI: 10.1200/jco.2004.22.90140.4158] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Affiliation(s)
| | - W. Marsh
- University of Pittsburgh, Pittsburgh, PA
| | - B. I. Carr
- University of Pittsburgh, Pittsburgh, PA
| |
Collapse
|
33
|
Abstract
The purpose of this study was to make observations of electromyographic (EMG) signal levels from a group of individuals to describe different mandibular tasks and use them as predictors of these activities. The sample consisted of 22 volunteer subjects (12 women and 10 men) with mean values for age, weight and height of 29.3 years, 69 kg and 168 cm respectively. Three separate recording sessions were performed for each subject. During each session the subjects were asked to perform different voluntary mandibular tasks. The EMG activity for each task was recorded from the anterior temporalis (T(a)) and masseter muscles (M(m)) bilaterally. The EMG recordings were related to task, session, task-session interaction, gender, age, weight and height using SAS version 6.12. The EMG data from the four muscles were considered as covariates to classify tasks. Overall, 78% of the group tasks were correctly classified. When the masticatory activities were classified as high and low EMG signal level group, the overall classification rate improved with an accuracy of 88%, sensitivity of 86%, specificity of 88%, positive predictive value of 76% and negative predictive value of 94%. The tasks, sessions, task-session interactions, gender, age, weight and height did not have any significant effect on the EMG recordings. It can be concluded that distinguishing among different mandibular tasks of a subject can be achieved when the individual EMG signal levels were compared with the EMG signal levels of subjects that were used to describe different mandibular activities.
Collapse
Affiliation(s)
- R Acosta-Ortiz
- Department of Restorative Dentistry, College of Dental Medicine, Nova Southeastern University, FL, USA.
| | | | | | | |
Collapse
|
34
|
Demetris AJ, Ruppert K, Dvorchik I, Jain A, Minervini M, Nalesnik MA, Randhawa P, Wu T, Zeevi A, Abu-Elmagd K, Eghtesad B, Fontes P, Cacciarelli T, Marsh W, Geller D, Fung JJ. Real-time monitoring of acute liver-allograft rejection using the Banff schema. Transplantation 2002; 74:1290-6. [PMID: 12451268 DOI: 10.1097/00007890-200211150-00016] [Citation(s) in RCA: 80] [Impact Index Per Article: 3.6] [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] [Indexed: 12/28/2022]
Abstract
BACKGROUND The Banff schema is the internationally accepted standard for grading acute liver-allograft rejection, but it has not been prospectively tested. METHODS Complete Banff grading was prospectively applied to 2,038 liver-allograft biopsies from 901 adult tacrolimus-treated primary hepatic allograft recipients between August 1995 and September 2001. Histopathologic data was melded with demographic, clinical, and laboratory data into a database on an ongoing basis using locally developed software. RESULTS Acute rejection developed in 575 of 901 (64%) patients and the worst grade was mild in 422 of 575 (73%). At least one episode of moderate or severe acute rejection developed in 153 of 901 (17%) patients and most episodes, irrespective of severity, occurred within the first year after transplantation. Patients with moderate or severe acute rejection showed higher alanine aminotransferase (P =0.007) and aspartate aminotransferase ( P=0.07) levels and were more likely to develop perivenular fibrosis on follow-up biopsies (P =0.001) and graft failure from acute or chronic rejection ( P=0.004) than those with mild rejection. Regardless of severity, 80% of patients with acute rejection did not develop significant fibrosis in follow-up biopsies, and graft failure from acute or chronic rejection occurred in only 11 of 901 (1%) allografts. CONCLUSIONS Most acute-rejection episodes are mild and do not lead to clinically significant architectural sequelae. When tested prospectively under real-life and -time conditions, the Banff schema can be used to identify those few patients who are potentially at risk for more significant problems. Creation, capture, and integration of non-free text, or "digital," pathology data can be used to prospectively conduct outcomes-based research in transplantation.
Collapse
Affiliation(s)
- A J Demetris
- Department of Pathology, Division of Transplantation, University of Pittsburgh Medical Center, Pittsburgh, PA 15213, USA.
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | |
Collapse
|
35
|
Avvakumov S, Adams T, Alton A, de Barbaro L, de Barbaro P, Bernstein RH, Bodek A, Bolton T, Brau J, Buchholz D, Budd H, Bugel L, Conrad J, Drucker RB, Fleming BT, Frey R, Formaggio JA, Goldman J, Goncharov M, Harris DA, Johnson RA, Kim JH, Koutsoliotas S, Lamm MJ, Marsh W, Mason D, McDonald J, McFarland KS, McNulty C, Naples D, Nienaber P, Radescu V, Romosan A, Sakumoto WK, Schellman H, Shaevitz MH, Spentzouris P, Stern EG, Suwonjandee N, Tzanov M, Vakili M, Vaitaitis A, Yang UK, Yu J, Zeller GP, Zimmerman ED. Search for nu(mu)-->nu(e) and nu(mu)-->nu(e) oscillations at NuTeV. Phys Rev Lett 2002; 89:011804. [PMID: 12097033 DOI: 10.1103/physrevlett.89.011804] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/12/2002] [Indexed: 05/23/2023]
Abstract
Limits on nu(mu)-->nu(e) and nu(mu)-->nu(e) oscillations are extracted using the NuTeV detector with sign-selected nu(mu) and nu(mu) beams. In nu(mu) mode, for the case of sin(2)2alpha = 1, Delta(m)(2)>2.6 eV(2) is excluded, and for Delta(m)(2)>>1000 eV(2), sin(2)2alpha>1.1 x 10(-3). The NuTeV data exclude the high Delta(m)(2) end of nu(mu)-->nu(e) oscillation parameters favored by the LSND experiment without the need to assume that the oscillation parameters for nu and nu are the same. We present the most stringent experimental limits for nu(mu)(nu(mu))-->nu(e)(nu(e)) oscillations in the large Delta(m)(2) region.
Collapse
Affiliation(s)
- S Avvakumov
- University of Rochester, Rochester, New York 14627, USA
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | |
Collapse
|
36
|
Zeller GP, McFarland KS, Adams T, Alton A, Avvakumov S, de Barbaro L, de Barbaro P, Bernstein RH, Bodek A, Bolton T, Brau J, Buchholz D, Budd H, Bugel L, Conrad J, Drucker RB, Fleming BT, Frey R, Formaggio JA, Goldman J, Goncharov M, Harris DA, Johnson RA, Kim JH, Koutsoliotas S, Lamm MJ, Marsh W, Mason D, McDonald J, McNulty C, Naples D, Nienaber P, Romosan A, Sakumoto WK, Schellman H, Shaevitz MH, Spentzouris P, Stern EG, Suwonjandee N, Tzanov M, Vakili M, Vaitaitis A, Yang UK, Yu J, Zimmerman ED. Precise determination of electroweak parameters in neutrino-nucleon scattering. Phys Rev Lett 2002; 88:091802. [PMID: 11863995 DOI: 10.1103/physrevlett.88.091802] [Citation(s) in RCA: 49] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/25/2001] [Indexed: 05/23/2023]
Abstract
The NuTeV Collaboration has extracted the electroweak parameter sin(2)theta(W) from the measurement of the ratios of neutral current to charged current nu and (-)nu cross sections. Our value, sin(2)theta((on-shell))(W) = 0.2277 +/- 0.0013(stat) +/- 0.0009(syst), is 3 standard deviations above the standard model prediction. We also present a model independent analysis of the same data in terms of neutral-current quark couplings.
Collapse
Affiliation(s)
- G P Zeller
- Northwestern University, Evanston, Illinois 60208, USA
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | |
Collapse
|
37
|
Yang UK, Adams T, Alton A, Arroyo CG, Avvakumov S, de Barbaro L, de Barbaro P, Bazarko AO, Bernstein RH, Bodek A, Bolton T, Brau J, Buchholz D, Budd H, Bugel L, Conrad J, Drucker RB, Fleming BT, Formaggio JA, Frey R, Goldman J, Goncharov M, Harris DA, Johnson RA, Kim JH, King BJ, Kinnel T, Koutsoliotas S, Lamm MJ, Marsh W, Mason D, McFarland KS, McNulty C, Mishra SR, Naples D, Nienaber P, Romosan A, Sakumoto WK, Schellman H, Sciulli FJ, Seligman WG, Shaevitz MH, Smith WH, Spentzouris P, Stern EG, Suwonjandee N, Vaitaitis A, Vakili M, Yu J, Zeller GP, Zimmerman ED. Extraction of R = sigma(L)/sigma(T) from CCFR nu(mu)-Fe and nu(mu)-Fe differential cross sections. Phys Rev Lett 2001; 87:251802. [PMID: 11736561 DOI: 10.1103/physrevlett.87.251802] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/23/2001] [Indexed: 05/23/2023]
Abstract
We report on the extraction of R = sigma(L)/sigma(T) from CCFR nu(mu)-Fe and nu(mu)-Fe differential cross sections. The CCFR differential cross sections do not show the deviations from the QCD expectations that are seen in the CDHSW data at very low and very high x. R as measured in nu(mu) scattering is in agreement with R as measured in muon and electron scattering. All data on R for Q(2)>1 GeV(2) are in agreement with a NNLO QCD calculation which uses NNLO parton distribution functions and includes target mass effects. We report on the first measurements of R in the low x and Q(2)<1 GeV(2) region (where an anomalous large rise in R for nuclear targets has been observed by the HERMES Collaboration).
Collapse
Affiliation(s)
- U K Yang
- University of Rochester, Rochester, New York 14627, USA
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | |
Collapse
|
38
|
Formaggio JA, Yu J, Adams T, Alton A, Avvakumov S, de Barbaro L, de Barbaro P, Bernstein RH, Bodek A, Bolton T, Brau J, Buchholz D, Budd H, Bugel L, Conrad JM, Drucker RB, Fleming BT, Foster J, Frey R, Goldman J, Goncharov M, Harris DA, Johnson RA, Kim JH, Koutsoliotas S, Lamm MJ, Marsh W, Mason D, McDonald J, McFarland KS, McNulty C, Naples D, Nienaber P, Romosan A, Sakumoto WK, Schellman HM, Shaevitz MH, Spentzouris P, Stern EG, Suwonjandee N, Vakili M, Vaitaitis A, Yang UK, Zeller GP, Zimmerman ED. Search for the lepton family number violating process nu(mu)e(-) --> mu(-)nu(e). Phys Rev Lett 2001; 87:071803. [PMID: 11497881 DOI: 10.1103/physrevlett.87.071803] [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] [Subscribe] [Scholar Register] [Received: 04/16/2001] [Indexed: 05/23/2023]
Abstract
The NuTeV experiment at Fermilab has used a sign-selected neutrino beam to perform a search for the lepton number violating process nu(mu)e(-)-->mu(-)nu(e), and to measure the cross section of the standard model inverse muon decay process nu(mu)e(-)-->mu(-)nu(e). NuTeV measures the inverse muon decay asymptotic cross-section slope sigma/E to be (13.8 +/- 1.2 +/- 1.4) x 10(-42) cm(2)/GeV. The experiment also observes no evidence for lepton number violation and places one of the most restrictive limits on the cross-section ratio sigma(nu(mu)e(-)-->mu(-)nu(e))/sigma(nu(mu)e(-)-->mu(-)nu(e)) < or = 1.7% at 90% C.L. for V-A couplings and < or = 0.6% for scalar couplings.
Collapse
|
39
|
Adams T, Alton A, Avvakumov S, de Barbaro L, de Barbaro P, Bernstein RH, Bodek A, Bolton T, Brau J, Buchholz D, Budd H, Bugel L, Conrad J, Drucker RB, Fleming BT, Frey R, Formaggio JA, Goldman J, Goncharov M, Harris DA, Johnson RA, Kim JH, Koutsoliotas S, Lamm MJ, Marsh W, Mason D, McDonald J, McNulty C, McFarland KS, Naples D, Nienaber P, Romosan A, Sakumoto WK, Schellman H, Shaevitz MH, Spentzouris P, Stern EG, Suwonjandee N, Tzanov M, Vakili M, Vaitaitis A, Yang UK, Yu J, Zeller GP, Zimmerman ED. Observation of an anomalous number of dimuon events in a high energy neutrino beam. Phys Rev Lett 2001; 87:041801. [PMID: 11461608] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Subscribe] [Scholar Register] [Received: 04/19/2001] [Indexed: 05/23/2023]
Abstract
A search for long-lived neutral particles ( N0's) with masses above 2.2 GeV/c(2) that decay into at least one muon has been performed using an instrumented decay channel at the NuTeV experiment at Fermilab. Data were examined for particles decaying into the final states mumu, mu(e), and mu(pi). Three mumu events were observed over an expected standard model background of 0.069+/-0.010 events; no events were observed in the other modes.
Collapse
Affiliation(s)
- T Adams
- Kansas State University, Manhattan, Kansas 66506, USA
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | |
Collapse
|
40
|
Jain A, Kashyap R, Marsh W, Rohal S, Khanna A, Fung JJ. Reasons for long-term use of steroid in primary adult liver transplantation under tacrolimus. Transplantation 2001; 71:1102-6. [PMID: 11374410 DOI: 10.1097/00007890-200104270-00016] [Citation(s) in RCA: 24] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
Abstract
BACKGROUND Tacrolimus is a potent immunosuppressive agent that provides higher freedom from acute and chronic rejection than cyclosporine after liver transplantation (LTx). Initially, a steroid-free state was observed in about 70% of patients at 1 year; this did not change over the next 5 years. The present study identifies the various reasons why the remaining 30% of adult patients still require steroids even after 5 years after successful LTx. METHOD Eight hundred thirty-four consecutive patients who underwent LTx between August 1989 and December 1992 were included in this study. Four hundred ninety-nine patients were alive in January 1999 and were available for this study. The dose of steroid and the reason for steroid use were retrospectively determined from the clinical records. RESULTS Three hundred sixty-five patients (73.1%) were off steroid, whereas 134 patients (26.9%) were receiving prednisone (mean dose was 6.4+/-3.7 mg/day) at the time of the study. Four hundred and eight-four patients (97%) were off prednisone at some time after LTx; however, in 119 (23.8%) patients, steroids were reintroduced. Fifteen patients (3%) continued to receive prednisone; eight receive prednisone due to reluctance of the local physician to withdraw the medication; in five patients, the prednisone was not withdrawn because these patients were on cyclosporine; in the remaining two patients, repeated attempts to withdraw steroid resulted in a rise in liver function test. In the 49 (36.6%) of 119 patients in whom the steroid was reintroduced, it was restarted secondary to pathologically proven or clinically suspected rejection (group I). In five patients steroid was reintroduced for abnormal liver function after being off immunosuppression for treatment of a posttransplantation lymphoproliferative disorder. Six patients were noncompliant with their immunosuppressive medication, and the steroid was reintroduced to control rejection. Steroids were reintroduced in 30 patients (22.4%) for recurrence of original disease: primary biliary cirrhosis (n= 19), sclerosing cholangitis (n=6), and autoimmune hepatitis (n=5) (group II). In 24 patients (20.2%), steroids were reintroduced to lower the dose of tacrolimus secondary to nephrotoxicity. Six of these patients received kidney transplantation (group III). In 16 patients (13.4%) the steroid was reintroduced for concomitant medical problems, consisting of ulcerative/Crohn's colitis (n=6), adrenal insufficiency (n=5), hematological disorders (n=3), dermatitis (n=1), and rheumatoid arthritis (n=1) (group IV). CONCLUSION Ninety-seven percent of patients under tacrolimus were weaned off steroid; however, 23.8% required steroid reintroduction for late rejection, recurrence of autoimmune process(es), renal impairment, or the concomitant presence of other medical conditions. Although the use of other immunosuppressive agents may reduce the rate of reintroduction of steroid, long-term sustained freedom from steroid may not be possible in all patients under tacrolimus secondary to these conditions.
Collapse
Affiliation(s)
- A Jain
- Department of Surgery, Thomas E. Starzl Transplantation Institute, Pittsburgh, Pennsylvania, USA
| | | | | | | | | | | |
Collapse
|
41
|
Fleming BT, Adams T, Alton A, Arroyo CG, Avvakumov S, de Barbaro L, de Barbaro P, Bazarko AO, Bernstein RH, Bodek A, Bolton T, Brau J, Buchholz D, Budd H, Bugel L, Conrad J, Drucker RB, Formaggio JA, Frey R, Goldman J, Goncharov M, Harris DA, Johnson RA, Kim JH, King BJ, Kinnel T, Koutsoliotas S, Lamm MJ, Marsh W, Mason D, McFarland KS, McNulty C, Mishra SR, Naples D, Nienaber P, Romosan A, Sakumoto WK, Schellman H, Sciulli FJ, Seligman WG, Shaevitz MH, Smith WH, Spentzouris P, Stern EG, Suwonjandee N, Vaitaitis A, Vakili M, Yang UK, Yu J, Zeller GP, Zimmerman ED. First measurement of the low- x, low- Q(2) structure function F(2) in neutrino scattering. Phys Rev Lett 2001; 86:5430-5433. [PMID: 11415268 DOI: 10.1103/physrevlett.86.5430] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/28/2000] [Indexed: 05/23/2023]
Abstract
A new structure function analysis of CCFR deep inelastic nu-N and nu-N scattering data is presented for previously unexplored kinematic regions down to Bjorken x = 0.0045 and Q(2) = 0.3 GeV(2). Comparisons to charged lepton scattering data from NMC and E665 experiments are made and the behavior of the structure function F(2)(nu)2 is studied in the limit Q(2)-->0.
Collapse
Affiliation(s)
- B T Fleming
- Columbia University, New York, New York 10027, USA
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | |
Collapse
|
42
|
Jain A, Mazariegos G, Kashyap R, Marsh W, Khanna A, Iurlano K, Fung J, Reyes J. Reasons why some children receiving tacrolimus therapy require steroids more than 5 years post liver transplantation. Pediatr Transplant 2001; 5:93-8. [PMID: 11328546 DOI: 10.1034/j.1399-3046.2001.005002093.x] [Citation(s) in RCA: 19] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
Abstract
Tacrolimus is a potent immunosuppressive agent and has been used in liver transplantation (LTx) for nearly a decade. More than 70% of children can be maintained on tacrolimus monotherapy, without steroids, by the end of 1 yr post-Tx. This freedom from steroids does not appear to change significantly in subsequent years. The use of steroids has obvious metabolic and cosmetic disadvantages, besides affecting linear growth in children. The present study identifies why some children still require steroid therapy after successful LTx. One hundred and sixty-six consecutive pediatric patients who had undergone primary LTx between October 1989 and December 1992, were included in this study. Follow-up ranged from 6 to 9 yr (mean 7.5 +/- 0.8 yr). One hundred and forty-one children were alive in November 1998 and these patients constituted the study group. Their current rate of prednisone use, reason for prednisone use, and prednisone dose were examined retrospectively. Of the 141 patients, 139 (98.5%) had stopped taking steroids at some time-point after LTx. Thirteen patients (9%) were off immunosuppression altogether (group I), 97 were undergoing tacrolimus monotherapy (group II), and the remaining 31 were receiving therapy with steroids and tacrolimus (group III). The mean prednisone dose at the last follow-up was 6.5 +/- 4.9 mg/day (median 5.0 mg/day). In group III, two children were never weaned off steroids because of inadequate follow-up (both lived outside the country), and the remaining 29 children completely stopped steroid therapy at some time-point after LTx; however, prednisone was re-introduced for clinically suspected or biopsy-proven rejection in 24. Seven children in group III had completely stopped immunosuppressive therapy either as part of an immunosuppression reduction protocol (n = 3) or for suspected or proven post-transplant lymphoproliferative disorder (PTLD) (n = 4). In eleven of the 18 children in group III, requirement of steroid for rejection was thought to be related, in part, to non-compliance. In three children in group III, steroids were re-introduced for renal dysfunction, and two of these patients subsequently received a kidney Tx. In one child with cerebral ischemia, steroids were used to reduce brain edema, and another child had features of auto-immune hepatitis. Hence, almost all children can be weaned off steroids when tacrolimus is used as primary immunosuppression after primary LTx. However, approximately 22% of children may need re-institution of steroids because of late acute rejection or renal dysfunction. The concomitant use of other non-steroidal immunosuppressive agents with tacrolimus may further reduce the dose and rate of steroid use.
Collapse
Affiliation(s)
- A Jain
- Thomas E. Starzl Transplantation Institute, Department of Surgery and Department of Pharmaceutical Sciences, University of Pittsburgh Medical Center, Pittsburgh, PA 15213, USA
| | | | | | | | | | | | | | | |
Collapse
|
43
|
Affiliation(s)
- T M Sturgis
- Ohio State University Hospitals, Columbus 43210
| | | | | |
Collapse
|
44
|
Yang UK, Adams T, Alton A, Arroyo CG, Avvakumov S, de Barbaro L, de Barbaro P, Bazarko AO, Bernstein RH, Bodek A, Bolton T, Brau J, Buchholz D, Budd H, Bugel L, Conrad J, Drucker RB, Fleming BT, Formaggio JA, Frey R, Goldman J, Goncharov M, Harris DA, Johnson RA, Kim JH, King BJ, Kinnel T, Koutsoliotas S, Lamm MJ, Marsh W, Mason D, McFarland KS, McNulty C, Mishra SR, Naples D, Nienaber P, Romosan A, Sakumoto WK, Schellman H, Sciulli FJ, Seligman WG, Shaevitz MH, Smith WH, Spentzouris P, Stern EG, Suwonjandee N, Vaitaitis A, Vakili M, Yu J, Zeller GP, Zimmerman ED. Measurements of F2 and xF(nu)(3) - xF(nu;)(3) from CCFR nu(mu)-Fe and nu;(mu)-Fe Data in a Physics Model-Independent Way. Phys Rev Lett 2001; 86:2742-2745. [PMID: 11290028 DOI: 10.1103/physrevlett.86.2742] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/15/2000] [Indexed: 05/23/2023]
Abstract
We report on the extraction of the structure functions F2 and DeltaxF(3) = xF(nu)(3)-xF(nu;)(3) from CCFR nu(mu)-Fe and nu;(mu)-Fe differential cross sections. The extraction is performed in a physics model-independent (PMI) way. This first measurement of DeltaxF(3), which is useful in testing models of heavy charm production, is higher than current theoretical predictions. The ratio of the F2 (PMI) values measured in nu(mu) and mu scattering is in agreement (within 5%) with the predictions of next-to-leading-order parton distribution functions using massive charm production schemes, thus resolving the long-standing discrepancy between the two sets of data.
Collapse
Affiliation(s)
- U K Yang
- University of Cincinnati, Cincinnati, OH 45221, USA
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | |
Collapse
|
45
|
Kashyap R, Jain A, Reyes J, Demetris AJ, Elmagd KA, Dodson SF, Marsh W, Madariaga V, Mazariegos G, Geller D, Bonham CA, Cacciarelli T, Fontes P, Starzl TE, Fung JJ. Causes of death after liver transplantation in 4000 consecutive patients: 2 to 19 year follow-up. Transplant Proc 2001; 33:1482-3. [PMID: 11267383 PMCID: PMC2953259 DOI: 10.1016/s0041-1345(00)02561-6] [Citation(s) in RCA: 30] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
Affiliation(s)
- R Kashyap
- Thomas E. Starzl Transplantation Institute, Department of Surgery, University of Pittsburgh, Pittsburgh, Pennsylvania, USA
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | |
Collapse
|
46
|
Kashyap R, Jain A, Reyes J, Demetris AJ, Elmagd KA, Dodson SF, Marsh W, Madariaga V, Mazariegos G, Geller D, Bonham CA, Cacciarelli T, Fontes P, Starzl TE, Fung JJ. Causes of retransplantation after primary liver transplantation in 4000 consecutive patients: 2 to 19 years follow-up. Transplant Proc 2001; 33:1486-7. [PMID: 11267385 PMCID: PMC2987633 DOI: 10.1016/s0041-1345(00)02563-x] [Citation(s) in RCA: 60] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
Affiliation(s)
- R Kashyap
- Thomas E. Starzl Transplantation Institute, Department of Surgery, University of Pittsburgh, Pittsburgh, Pennsylvania, USA
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | |
Collapse
|
47
|
Abstract
PURPOSE To determine the features of advanced hepatic and extrahepatic fibrolamellar hepatocellular carcinomas (HCCs) and their effects on immediate surgical management and tumor recurrence. MATERIALS AND METHODS Thirty-one patients with fibrolamellar HCC underwent pretherapy computed tomography (CT); 11 underwent pretherapy magnetic resonance (MR) imaging. All 40 patients underwent posttherapy CT; four, follow-up MR imaging. Imaging, surgical, and histopathologic findings were correlated. RESULTS Twenty-five (81%) patients had solitary tumors (mean maximum diameter, 13 cm). Thirteen (42%) patients had intrahepatic biliary obstruction; 27 (87%) patients had involvement of the portal or hepatic veins. Thirteen (42%) had extrahepatic tumor spread, nine (29%) had distant metastases on pretherapy images, and 20 (65%) had lymphadenopathy. Thirty-two (80%) of 40 patients underwent exploration surgery; curative resection was attempted in 25 (62%), including four patients who underwent liver transplantation. Only 17 patients were considered to have had hepatic and extrahepatic tumors completely excised. Tumor recurred in all eight of the 17 patients who had extrahepatic disease at pretherapy CT and in four of the seven patients who seemed to have tumor limited to the liver. A combination of repeat tumor resection and adjuvant chemotherapy resulted in prolonged tumor-free survival in some cases. CONCLUSION Fibrolamellar HCC frequently demonstrates aggressive local invasion and nodal and distant metastases. Pretherapy and follow-up imaging are important for staging, surveillance, and optimal management. Aggressive surgical resection may be helpful to control fibrolamellar HCC and to prolong survival in appropriately selected cases.
Collapse
Affiliation(s)
- T Ichikawa
- Department of Radiology, and Surgery, University of Pittsburgh Medical Center, 200 Lothrop St, Pittsburgh, PA 15213-2582, USA
| | | | | | | |
Collapse
|
48
|
Jain A, Reyes J, Kashyap R, Dodson SF, Demetris AJ, Ruppert K, Abu-Elmagd K, Marsh W, Madariaga J, Mazariegos G, Geller D, Bonham CA, Gayowski T, Cacciarelli T, Fontes P, Starzl TE, Fung JJ. Long-term survival after liver transplantation in 4,000 consecutive patients at a single center. Ann Surg 2000; 232:490-500. [PMID: 10998647 PMCID: PMC1421181 DOI: 10.1097/00000658-200010000-00004] [Citation(s) in RCA: 427] [Impact Index Per Article: 17.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
OBJECTIVE To evaluate the long-term survival outcomes of a large cohort of liver transplant recipients and to identify static and changing factors that influenced these outcomes over time. SUMMARY BACKGROUND DATA Liver transplantation has been accepted as a therapeutic option for patients with end-stage liver disease since 1983, with continual improvements in patient survival as a result of advances in immunosuppression and medical management, technical achievements, and improvements in procurement and preservation. Although many reports, including registry data, have delineated short-term factors that influence survival, few reports have examined factors that affect long-term survival after liver transplantation. METHODS Four thousand consecutive patients who underwent liver transplantation between February 1981 and April 1998 were included in this analysis and were followed up to March 2000. The effect of donor and recipient age at the time of transplantation, recipient gender, diagnosis, and year of transplantation were compared. Rates of retransplantation, causes of retransplantation, and cause of death were also examined. RESULTS The overall patient survival for the entire cohort was 59%; the actuarial 18-year survival was 48%. Patient survival was significantly better in children, in female recipients, and in patients who received transplants after 1990. The rates of retransplantation for acute or chronic rejection were significantly lower with tacrolimus-based immunosuppression. The risk of graft failure and death was relatively stable after the first year, with recurrence of disease, malignancies, and age-related complications being the major factors for loss. CONCLUSION Significantly improved patient and graft survival has been observed over time, and graft loss from acute or chronic rejection has emerged as a rarity. Age-related and disease-related causes of graft loss represent the greatest threat to long-term survival.
Collapse
Affiliation(s)
- A Jain
- Thomas E. Starzl Transplantation Institute, University of Pittsburgh, Pittsburgh, Pennsylvania, USA
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | |
Collapse
|
49
|
Thomson MA, Lynch S, Strong R, Shepherd RW, Marsh W. Orthotopic liver transplantation with poor neurologic outcome in valproate-associated liver failure: a need for critical risk-benefit appraisal in the use of valproate. Transplant Proc 2000; 32:200-3. [PMID: 10701024 DOI: 10.1016/s0041-1345(99)00936-7] [Citation(s) in RCA: 22] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Affiliation(s)
- M A Thomson
- Queensland Liver Transplant Service, Royal Children's Hospital, Brisbane, Australia
| | | | | | | | | |
Collapse
|
50
|
Eghtesad B, Nezakatgoo N, Geraci LC, Jabbour N, Irish WD, Marsh W, Fung JJ, Rakela J. Liver transplantation for Wilson's disease: a single-center experience. Liver Transpl Surg 1999; 5:467-74. [PMID: 10545532 DOI: 10.1002/lt.500050614] [Citation(s) in RCA: 53] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Abstract
Wilson's disease is a hereditary defect in copper excretion leading to the accumulation of copper in the tissues, with subsequent tissue damage. The most serious sequela is that of progressive central nervous system involvement. The use of orthotopic liver transplantation (OLT) has been controversial for those patients with neurological symptoms attributed to Wilson's disease. The aim of this study is to determine the effectiveness of OLT for patients with Wilson's disease, including those with neurological involvement attributed to copper accumulation in the central nervous system. OLT was performed in 45 patients (19 men [42.2%], 26 women [57.8%]) with Wilson's disease between 1971 and 1993 who were followed up for at least 4 years. The age at diagnosis of Wilson's disease ranged from 3 to 41 years (mean, 17.7 +/- 7.4 years). The age at OLT ranged from 8 to 52 years (mean, 22.3 +/- 9.4 years). Nineteen patients (42.2%) were aged younger than 18 years at OLT. The indications for OLT included chronic hepatic failure in 15 patients (33.3%) and fulminant (FHF) or subfulminant hepatic failure in 30 patients (66. 6%). All but 1 of the 19 pediatric patients (94.7%) were in the latter group. Twenty-five patients (55.5%) were receiving D-penicillamine, 9 patients for more than 1 year; none of the patients treated long term presented as FHF. Thirty-three patients (73.3%) survived more than 5 years after OLT. Fourteen patients (31%) died during the posttransplantation period; 7 of the 14 patients (50%) were aged younger than 18 years. Twelve patients died during the first 3 months after OLT of complications of disease and surgery, 10 of whom underwent transplantation for FHF. The other 2 patients died 6 and 9 years after transplantation of infectious problems. Eleven patients (24.4%) required retransplantation because of a primary nonfunctioning graft (n = 6), chronic rejection (n = 4), and hepatic artery thrombosis (n = 1). Seventeen patients (37.7%) presented with neurological abnormalities; 14 patients with Wilsonian neurological manifestations and 3 patients with components of increased intracranial pressure. Ten of the 13 surviving patients with hepatic insufficiency and neurological abnormalities at OLT showed significant neurological improvement. Our experience shows OLT is a life-saving procedure in patients with end-stage Wilson's disease and is associated with excellent long-term survival. The neurological manifestation of the disease can improve significantly after OLT. Earlier transplantation in patients with an unsatisfactory response to medical treatment may prevent irreversible neurological deterioration and less satisfactory improvement after OLT.
Collapse
Affiliation(s)
- B Eghtesad
- Division of Transplantation Surgery, University of New Mexico, Albuquerque, NM, USA.
| | | | | | | | | | | | | | | |
Collapse
|