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Bégin V, Mavungu-Blouin C, Hamilton M, Therriault D, Le Corff Y, Déry M. Primary and Secondary Variants of Callous-Unemotional Traits in Children with Conduct Problems: A Longitudinal Follow-up During Adolescence. Res Child Adolesc Psychopathol 2024:10.1007/s10802-024-01168-y. [PMID: 38334909 DOI: 10.1007/s10802-024-01168-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 01/12/2024] [Indexed: 02/10/2024]
Abstract
Recent empirical work has suggested that youths with conduct problems and presenting high levels of callous-unemotional (CU) traits can be divided in two variants (i.e., primary, secondary) presenting specific characteristics and needs, but studies examining outcomes associated longitudinally with variants memberships remain scarce. Building on a previous investigation in which we identified variants of CU traits among children with conduct problems, we examined differences between groups on a wide range of behavioral/psychological, relational/social, and educational outcomes assessed during adolescence (n = 309, mean age = 17.4, SD = 0.96). When compared to those from the primary variant, youths from the secondary variant reported higher levels of conduct, opposition, attention deficit/hyperactivity and anxiety problems, had lower teacher-reported academic performance, experienced more conflictual relationships with their teachers, and were at higher risk of being victimized by their intimate partner. These results shed light on the specific clinical characteristics of children from the secondary variant that are likely to persist until adolescence. Providing these children with intensive preventive interventions targeting these long-term consequences could be particularly beneficial.
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Affiliation(s)
- Vincent Bégin
- Department of Psychoeducation, University of Sherbrooke, Sherbrooke, Canada.
- Group for Research and Intervention on Children's Social Adjustment, Sherbrooke, Canada.
- Research Unit on Children's Psychosocial Maladjustment, Montreal, Canada.
| | - Corinne Mavungu-Blouin
- Department of Psychoeducation, University of Sherbrooke, Sherbrooke, Canada
- Group for Research and Intervention on Children's Social Adjustment, Sherbrooke, Canada
| | - Mathis Hamilton
- Department of Psychoeducation, University of Sherbrooke, Sherbrooke, Canada
- Group for Research and Intervention on Children's Social Adjustment, Sherbrooke, Canada
| | - Danyka Therriault
- Department of Psychoeducation, University of Sherbrooke, Sherbrooke, Canada
- Group for Research and Intervention on Children's Social Adjustment, Sherbrooke, Canada
| | - Yann Le Corff
- Group for Research and Intervention on Children's Social Adjustment, Sherbrooke, Canada
- Department of Vocational Guidance, University of Sherbrooke, Sherbrooke, Canada
- Department of Psychiatry, University of Sherbrooke, Sherbrooke, Canada
| | - Michèle Déry
- Department of Psychoeducation, University of Sherbrooke, Sherbrooke, Canada
- Group for Research and Intervention on Children's Social Adjustment, Sherbrooke, Canada
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Stern L, Patel J, Kittleson M, Chang D, Patel N, Singer-Englar T, Velleca A, Norland K, Hamilton M, Czer L, Esmailian F, Kobashigawa J. Proceeding with Heart Transplant in Flow Positive Cyto-Negative Prospective Donor-Specific Crossmatch in Highly Sensitized Patients: Saving Lives. J Heart Lung Transplant 2023. [DOI: 10.1016/j.healun.2023.02.1667] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/05/2023] Open
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Stachel M, Patel J, Kittleson M, Chang D, Patel N, Singer-Englar T, Ross V, De Leon F, Hamilton M, Czer L, Esmailian F, Kobashigawa J. Revisiting Hemodynamic Compromise Rejection in the Current Era of Heart Transplantation: Still Problematic. J Heart Lung Transplant 2023. [DOI: 10.1016/j.healun.2023.02.1212] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/05/2023] Open
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Shen A, Patel J, Kittleson M, Chang D, Esmailian G, Singer-Englar T, De Leon F, Hamilton M, Geft D, Czer L, Megna D, Kobashigawa J. Transthyretin Amyloid May Have a Protective Effect for Rejection after Heart Transplantation. J Heart Lung Transplant 2023. [DOI: 10.1016/j.healun.2023.02.544] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/05/2023] Open
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Kittleson M, Patel J, Nikolova A, Patel N, Singer-Englar T, Hu J, De Leon F, Hamilton M, Czer L, Esmailian F, Kobashigawa J. What Should the GFR Threshold Be for Redo Heart Transplant Patients to Qualify for Combined Heart-Kidney Transplantation. J Heart Lung Transplant 2023. [DOI: 10.1016/j.healun.2023.02.524] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/05/2023] Open
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Kittleson M, Patel J, Hage A, Geft D, Singer-Englar T, Kim S, Velleca A, Hamilton M, Czer L, Esmailian F, Kobashigawa J. Oversized Donors for Patients with Pulmonary Hypertension Awaiting Heart Transplant: Busting the Myth of Using Female Donors. J Heart Lung Transplant 2023. [DOI: 10.1016/j.healun.2023.02.534] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/05/2023] Open
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Hamilton M, Mars Z, Sedeuil M, Rolland M, Jean D, Giroux V. A10 OVEREXPRESSION OF ASCL2 ALTERS DIFFERENTIATION, CELL CYCLE AND RESISTANCE TO ANTI-CANCER TREATMENT IN ESOPHAGEAL ORGANOIDS. J Can Assoc Gastroenterol 2023. [PMCID: PMC9991315 DOI: 10.1093/jcag/gwac036.010] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 03/09/2023] Open
Abstract
Background The esophagus is in constant contact with the austere environment caused by food and gastric reflux. It is protected by a squamous epithelium which maintenance is provided by a rare subpopulation of basal cells: Keratin 15+ (Krt15+) stem cells. However, little is known about the mechanisms underlying the expansion and the function of these stem cells. It was shown that the transcription factor ASCL2 is strongly upregulated in Krt15+ cells compared to Krt15- cells. Interestingly, ASCL2 is a gene target of the Wnt/β-catenin pathway, which acts as a regulator of proliferation and maintenance of the stemness state. Purpose The ultimate goal of my research project is to determine the role of ASCL2 in the maintenance of esophageal stem cells. To do so, I will investigate the role of ASCL2 in esophageal epithelial biology. Method Lentiviral infection approach was used to obtain mouse esophageal organoids overexpressing ASCL2 (ASCL2OE). Organoid culture, immunostaining (such as IF and H&E), qPCR, WB, mass spectrometry and proliferation assay were used to characterize the effect of ASCL2OE on morphology, differentiation, proliferation, self-renewal, and gene expression. Result(s) ASCL2OE severely altered the morphology of organoids, which were smaller and less differentiated. Defects in differentiation was investigated by IF which showed that some cells expressed both p63 and K13, respectively basal and suprabasal markers. Thus, cells seem to be blocked in an intermediate state of differentiation suggesting a default in cell fate decision. Mass spectrometry analysis confirmed a change in biological processes related to differentiation of keratinocytes and of epithelial cells. We also investigated the role of ASCL2 in self-renewal and observed that organoid formation rate (OFR) was reduced in ASCL2OE organoids. Furthermore, proliferation was also reduced in WST-1 and EdU assays. We then observed significant changes in the cell cycle by flow cytometry: there is an increased in the number of cells in G0/G1 and a major decrease in G2/M cells, suggesting a blockade in G1. Interestingly, CDNK2a (p16INK4a), an inhibitor of cell cycle progression, was increased in our mass spectrometry results. Finally, ASCL2 could also play a role in radio and chemoresistance of Krt15+ stem cells, as ASCL2OE organoids are less sensitive to radiation and chemotherapy agents than control. Conclusion(s) ASCL2 could play a role in orchestrating cell fate decision in the esophageal epithelium as ASCL2OE organoids showed alteration in differentiation, proliferation, and cell cycle. Please acknowledge all funding agencies by checking the applicable boxes below Other Please indicate your source of funding; NSERC, Canada Research Chairs and CRCHUS scolarship Disclosure of Interest None Declared
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Affiliation(s)
- M Hamilton
- Immunologie et de Biologie cellulaire, Université de Sherbrooke, Sherbrooke, Canada
| | - Z Mars
- Immunologie et de Biologie cellulaire, Université de Sherbrooke, Sherbrooke, Canada
| | - M Sedeuil
- Immunologie et de Biologie cellulaire, Université de Sherbrooke, Sherbrooke, Canada
| | - M Rolland
- Immunologie et de Biologie cellulaire, Université de Sherbrooke, Sherbrooke, Canada
| | - D Jean
- Immunologie et de Biologie cellulaire, Université de Sherbrooke, Sherbrooke, Canada
| | - V Giroux
- Immunologie et de Biologie cellulaire, Université de Sherbrooke, Sherbrooke, Canada
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Sophocleous F, Standen L, Doolub G, Laymouna R, Bucciarelli-Ducci C, Caputo M, Manghat N, Hamilton M, Curtis S, Biglino G. Left ventricular morphology in patients with aortic coarctation and bicuspid aortic valve: novel insights from a statistical shape modelling framework. Eur Heart J 2022. [DOI: 10.1093/eurheartj/ehac544.261] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Abstract
Abstract
Background
The functional implications of left ventricular (LV) morphological characterization in congenital heart disease (CHD) are not widely explored.
Purpose
This study qualitatively and quantitatively assessed LV shape associations with a) LV function and b) thoracic aortic morphology in patients with aortic coarctation (CoA) with/without bicuspid aortic valve (BAV).
Methods
A statistical shape modelling (SSM) framework was employed to analyse three-dimensional (3D) LV shapes from cardiac magnetic resonance (CMR) imaging data in n=110 cases including: isolated CoA (n=25), CoA+BAV (n=30), isolated BAV (n=30), and age-matched healthy controls (n=25). Average 3D templates (Picture 1) and deformations were computed. Correlations between shape data and CMR-derived morphometric parameters (i.e. sphericity, conicity) as well as CMR-derived global and apical strain values were assessed to elucidate possible functional implications. The relationship between LV shape features and arch architecture (i.e. gothicity, tortuosity) was also explored by means of regression analysis.
Results
The LV template was shorter and more spherical in CoA patient (Picture 1), as also confirmed by statistical analysis of the SSM-derived shape modes. LV sphericity, which was higher in CoA, was associated (p≤0.04) with lower global longitudinal, radial and circumferential strain, irrespective of the presence of aortic stenosis and/or regurgitation. Conversely, neither LV morphology nor LV strain was not associated with arch architecture.
Conclusions
Differences in LV morphology were observed between CoA and BAV patients. Increasing LV sphericity was associated with reduced strain, independent of aortic arch architecture and functional aortic valve disease.
Funding Acknowledgement
Type of funding sources: Foundation. Main funding source(s): British Heart Foundation and NIHR BRC
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Affiliation(s)
| | - L Standen
- University of Bristol , Bristol , United Kingdom
| | - G Doolub
- Bristol Heart Institute , Bristol , United Kingdom
| | - R Laymouna
- Bristol Heart Institute , Bristol , United Kingdom
| | | | - M Caputo
- Bristol Heart Institute , Bristol , United Kingdom
| | - N Manghat
- Bristol Heart Institute , Bristol , United Kingdom
| | - M Hamilton
- Bristol Heart Institute , Bristol , United Kingdom
| | - S Curtis
- Bristol Heart Institute , Bristol , United Kingdom
| | - G Biglino
- University of Bristol , Bristol , United Kingdom
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Larkin J, Squifflet P, Saad E, Mohr P, Kurt M, Moshyk A, Hamilton M, Kotapati S, Buyse M. 816P Investigating surrogate endpoints (SE) for overall survival (OS) in first-line (1L) advanced melanoma: A pooled-analysis of immune checkpoint inhibitor (ICI) trials. Ann Oncol 2022. [DOI: 10.1016/j.annonc.2022.07.942] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022] Open
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10
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Hamilton M, Russell S, Moskovtsev S, Librach C. O-135 Sperm-borne small ribonucleic acid profile significantly impacts embryo development. Hum Reprod 2022. [DOI: 10.1093/humrep/deac105.035] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Abstract
Abstract
Study question
Do normozoospermic males with reduced pre-implantation embryo development have aberrant sperm small RNA profiles?
Summary answer
Small RNA sequencing suggests the small RNA profile may differ in normozoospermic males with low blastocyst development rates, compared to males with higher blastocyst progression.
What is known already
Current male factor infertility diagnostics are insufficient, with 30-50% of subfertile males having unknown etiology. Spermatozoa contain a complex, epigenetically-marked genome and a collection of RNAs and proteins, which are not adequately assessed by current diagnostic methods. The sperm small RNA payload is reportedly modified during epididymal transit and in response to paternal exposures, influencing which sperm small RNA species are delivered to the oocyte. Mechanistic animal studies and correlative human and animal studies have suggested that sperm small RNAs may be important for early embryonic development and health of offspring, though their diagnostic and therapeutic value are still unclear.
Study design, size, duration
Human semen samples were collected between April 2017 and August 2020 from a total of 56 male patients presenting to CReATe Fertility Centre for fertility evaluation. Clinical data was accessed retrospectively. All patients were normozoospermic, according to standard semen analysis and were using donor oocytes. Samples were divided into high (n = 20), average (n = 16), and low (n = 20) fertility groups based on their deviation (1 standard deviation) from the mean blastocyst rate.
Participants/materials, setting, methods
Semen analysis was undertaken immediately following sample collection and spermatozoa were isolated by centrifugation. Sperm small RNA was purified and eluted using the RNeasy and MiRNeasy Kits (Qiagen). Barcoded and amplified cDNA libraries were prepared from small RNA using the NEXTFLEX Small RNA-Seq Kit v3 (Bioo Scientific). Resulting libraries were pooled, size-selected to a range of 140-190 base pairs, denatured and diluted for sequencing. Single-end, 75 bp sequencing was performed using the NextSeq 550 (Illumina).
Main results and the role of chance
Sequencing generated approximately 300 million raw reads, with 30 samples exceeding 2 million reads included in the differential expression analysis. Most reads were mapped to rRNAs (69%), miRNAs (11%), and piRNAs (12%). However, transfer RNA fragments from tRNA-Gly-GCC and tRNA-Val-CAC were the most abundant sequences. Top annotated miRNAs include: miR-12136-5p; miR-21-5p; and miR-122-5p. Principal component analysis revealed 222 genes that were differentially expressed between the high (n = 14) and low (n = 11) fertility groups (p < 0.05). Interestingly, the top 50 differentially expressed sRNAs are sufficient to effectively cluster sperm with poor blastocyst development rates.
Limitations, reasons for caution
The results are limited by a relatively low sequencing depth (mean of 4.1 million reads per sample) and sample size. Fertility groups were determined by blastocyst rates, which can be confounded by non-sperm-derived variables, including technical skill, embryo culturing conditions, and maternal factors (though donor oocytes were used).
Wider implications of the findings
With additional validation, a clinically-useful panel of differentially expressed sperm small RNAs could be used to predict IVF success and evaluate therapies aimed at improving male reproductive health. Augmenting traditional semen analytics with diagnostic sperm small RNA analysis could reduce time to pregnancy and the psychosocial impacts of fertility treatment.
Trial registration number
Not applicable
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Affiliation(s)
- M Hamilton
- CReATe Fertility Centre, Research , Toronto, Canada
| | - S Russell
- CReATe Fertility Centre, Research , Toronto, Canada
| | - S Moskovtsev
- University of Toronto, Department of Obstetrics and Gynecology , Toronto, Canada
| | - C Librach
- University of Toronto, Department of Obstetrics and Gynecology , Toronto, Canada
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Kittleson M, Patel J, Kransdorf E, Singer-Englar T, Patel N, Rubio M, Musto N, Hamilton M, Emerson D, Czer L, Kobashigawa J. Are Markedly Oversized Donor Hearts Associated with Poor Outcome After Heart Transplantation? J Heart Lung Transplant 2022. [DOI: 10.1016/j.healun.2022.01.1384] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022] Open
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12
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Dhillon M, Patel J, Kittleson M, Chang D, Patel N, Singer-Englar T, Hamilton M, Czer L, Megna D, Kobashigawa J. Experience with Eculizumab in Highly Sensitized Patients Undergoing Heart Transplantation. J Heart Lung Transplant 2022. [DOI: 10.1016/j.healun.2022.01.213] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022] Open
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13
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Patel J, Kittleson M, Kransdorf E, Singer-Englar T, Patel N, Kim S, Hage A, Hamilton M, Czer L, Kobashigawa J. Treatment and Outcome of AL Amyloid After Heart Transplantation: Is It Viable? J Heart Lung Transplant 2022. [DOI: 10.1016/j.healun.2022.01.1109] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022] Open
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14
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Patel J, Kittleson M, Kransdorf E, Singer-Englar T, Patel N, Yamamoto N, Kim S, Hamilton M, Emerson D, Czer L, Kobashigawa J. Sex Differences in Desensitization for Patients Awaiting Heart Transplantation: Is There a Difference? J Heart Lung Transplant 2022. [DOI: 10.1016/j.healun.2022.01.1643] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022] Open
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Hamilton M, Jean D, Boudreau F, Giroux V. A21 OVEREXPRESSION OF ASCL2 ALTERS DIFFERENTIATION IN ESOPHAGEAL ORGANOIDS. J Can Assoc Gastroenterol 2022. [PMCID: PMC8859347 DOI: 10.1093/jcag/gwab049.020] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
Background The first population of stem cells in the esophageal epithelium was recently identified with the marker Keratin 15 ( Krt15). However, little is known about the mechanisms underlying the expansion and the function of these stem cells. It was shown that the transcription factor ASCL2 is upregulated in Krt15+ cells compared to Krt15- cells. Interestingly, ASCL2 is a gene target of the Wnt/β-catenin pathway, which acts as a regulator of proliferation and maintenance of the stemness state. The ultimate goal of my research project is to determine the role of ASCL2 in the maintenance of esophageal stem cells and to identify its binding partners. Aims Investigate the role of ASCL2 in esophageal epithelial biology. Methods Lentiviral infection approach was used to obtain mouse esophageal organoids overexpressing ASCL2. Organoid culture, immunostaining (such as IF and H&E), qPCR, WB and proliferation assay were used to characterize the effect of ASCL2 overexpression on morphology, differentiation, proliferation, self-renewal and gene expression. Results First, ASCL2 overexpression was confirmed by WB. Interestingly, the morphology of organoid overexpressing ASCL2 was severely altered: organoids were smaller and less differentiated. Defect in differentiation was investigated by qPCR and IF using relevant markers such as p63, Krt13, Wnt5a and NT5E. Indeed, we observed an increase in basal marker ( p63), a decrease in suprabasal markers ( Krt13, Wnt5a) and in a stem cell marker ( NT5E). We also investigated the role of ASCL2 in self-renewal and observed that organoid formation capacity was reduced in ASCL2-overexpressing organoids. Furthermore, proliferation was also reduced in WST-1 assays. We also observed lower expression of the gene Top2a, a recently identified marker of the proliferative basal cell population in the human esophagus. Finally, we observed significant changes in the expression of genes associated with quiescent stem cells (Clu, ZFP36L2 and Anxa1). Conclusions ASCL2 overexpression alters differentiation and proliferation in organoids. ASCL2 could play a role in orchestrating cell fate decision in the esophageal epithelium. Funding Agencies NSERC, Canada Research Chair
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Affiliation(s)
- M Hamilton
- Immunologie et Biologie cellulaire, Universite de Sherbrooke, Sherbrooke, QC, Canada
| | - D Jean
- Immunologie et Biologie cellulaire, Universite de Sherbrooke, Sherbrooke, QC, Canada
| | - F Boudreau
- Immunologie et Biologie cellulaire, Universite de Sherbrooke, Sherbrooke, QC, Canada
| | - V Giroux
- Immunologie et Biologie cellulaire, Universite de Sherbrooke, Sherbrooke, QC, Canada
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Filia K, Menssink J, Gao CX, Rickwood D, Hamilton M, Hetrick SE, Parker AG, Herrman H, Hickie I, Sharmin S, McGorry PD, Cotton SM. Social inclusion, intersectionality, and profiles of vulnerable groups of young people seeking mental health support. Soc Psychiatry Psychiatr Epidemiol 2022; 57:245-254. [PMID: 34091699 DOI: 10.1007/s00127-021-02123-8] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/02/2020] [Accepted: 06/02/2021] [Indexed: 11/26/2022]
Abstract
BACKGROUND headspace centres provide enhanced primary mental healthcare for young people. A priority is to provide services for all young people irrespective of a range of social disadvantages or social exclusion. The aims of this study were to: (i) delineate extent of social inclusion across domains of housing, studying/employment, functioning, alcohol, and other drug use; and (ii) map profiles of young people deemed vulnerable to experiencing additional barriers to accessing services based on their social inclusion domains (e.g., those living in unstable housing, not in employment/education, and/or experiencing intersecting or multiple forms of disadvantage or difficulties), including detailing their clinical characteristics. METHODS Young people were recruited from five headspace centres. Data relevant to social inclusion were examined. Multivariate logistic regression models were used to determine overlap between vulnerable groups, functional, social, clinical, and behavioural factors. RESULTS 1107 young people participated, aged 12-25 years (M = 18.1 years, SD = 3.3), most living in stable housing (96.5%) and engaged in studying/employment (84.8%). Specific vulnerabilities were evident in young people with NEET status (15.2%); in unstable accommodation (3.5%); of culturally diverse backgrounds (CALD) (12.2%); living in regional areas (36.1%); and identifying as lesbian, gay, bisexual, transgender, intersex, queer/questioning, and asexual plus (LGBTIQA+; 28.2%). Higher levels of distress, substance use, functional impairment, and lower social support were reported by those who were NEET and/or in unstable housing. LGBTIQA+ status was associated with high distress, depressive symptoms, and suicidal ideation. CONCLUSIONS Most participants reported good social support, stable housing, and engagement in work or education. Those deemed vulnerable were likely to experience social exclusion across multiple domains and reported more mental health problems. The co-occurrence of mental ill-health and social exclusion highlights the importance of integrated mental healthcare.
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Affiliation(s)
- K Filia
- Orygen, Locked Bag 10, 35 Poplar Road, Parkville, VIC, 3052, Australia.
- Centre for Youth Mental Health, University of Melbourne, Parkville, VIC, Australia.
| | - J Menssink
- Orygen, Locked Bag 10, 35 Poplar Road, Parkville, VIC, 3052, Australia
- Centre for Youth Mental Health, University of Melbourne, Parkville, VIC, Australia
| | - C X Gao
- Orygen, Locked Bag 10, 35 Poplar Road, Parkville, VIC, 3052, Australia
- Centre for Youth Mental Health, University of Melbourne, Parkville, VIC, Australia
- Department of Epidemiology and Preventative Medicine, School of Public Health and Preventive Medicine, Monash University, Melbourne, VIC, Australia
| | - D Rickwood
- headspace National Youth Mental Health Foundation, Melbourne, VIC, Australia
- Faculty of Health, University of Canberra, Canberra, ACT, Australia
| | - M Hamilton
- Orygen, Locked Bag 10, 35 Poplar Road, Parkville, VIC, 3052, Australia
| | - S E Hetrick
- Orygen, Locked Bag 10, 35 Poplar Road, Parkville, VIC, 3052, Australia
- Department of Psychological Medicine, The University of Auckland, Auckland, New Zealand
| | - A G Parker
- Orygen, Locked Bag 10, 35 Poplar Road, Parkville, VIC, 3052, Australia
- Brain and Mind Centre, The University of Sydney, Camperdown, NSW, Australia
| | - H Herrman
- Orygen, Locked Bag 10, 35 Poplar Road, Parkville, VIC, 3052, Australia
- Centre for Youth Mental Health, University of Melbourne, Parkville, VIC, Australia
| | - I Hickie
- Institute for Health and Sport, Victoria University, Melbourne, VIC, Australia
| | - S Sharmin
- Orygen, Locked Bag 10, 35 Poplar Road, Parkville, VIC, 3052, Australia
- Centre for Youth Mental Health, University of Melbourne, Parkville, VIC, Australia
| | - P D McGorry
- Orygen, Locked Bag 10, 35 Poplar Road, Parkville, VIC, 3052, Australia
- Centre for Youth Mental Health, University of Melbourne, Parkville, VIC, Australia
| | - S M Cotton
- Orygen, Locked Bag 10, 35 Poplar Road, Parkville, VIC, 3052, Australia
- Centre for Youth Mental Health, University of Melbourne, Parkville, VIC, Australia
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Goh D, House A, Moores AP, Renwick A, Franklin C, Kulendra E, Polak S, Pink J, Triglia M, Neville-Towle J, Hamilton M, Sajik D, Pfeiffer C. Surgical management of superficial digital flexor tendon luxation in dogs: 48 cases (2005-2020). J Small Anim Pract 2021; 63:305-311. [PMID: 34914119 DOI: 10.1111/jsap.13448] [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] [Received: 05/09/2021] [Revised: 09/24/2021] [Accepted: 10/31/2021] [Indexed: 11/26/2022]
Abstract
OBJECTIVES To report the outcome, frequency of complications and potential prognostic factors associated with surgical repair of superficial digital flexor tendon (SDFT) luxation in dogs. MATERIALS AND METHODS Medical records from 10 referral hospitals were reviewed retrospectively for cases of SDFT luxation in dogs that underwent surgical stabilisation. Signalment, clinical presentation, diagnostic imaging, surgical method, type and length of post-operative limb immobilisation, nature of and length of exercise restriction, presence of post-operative complications and outcomes were recorded. Data were summarised descriptively and prognostic risk factors assessed for association with surgical outcome using risk ratios. RESULTS Forty-eight cases were included. A successful surgical outcome was recorded in 35 of 48 (73%) cases. Re-luxation of the SDFT occurred in seven of 48 (15%). Six out of 48 (13%) had a persistent lameness despite a stable non-luxating SDFT. A high frequency of post-operative complications occurred (71%), with the majority resolved medically. The risk of surgical failure was 60% higher (risk ratio 1.6, 95% confidence interval 1.1 to 2.4) where absorbable suture material was used compared to non-absorbable suture material. Surgical failure was more common in cases managed with non-rigid immobilisation post-operatively (57% failure) compared to cases managed with rigid immobilisation (19% failure), although this result was not statistically significant. Limb immobilisation of 6 weeks or longer did not significantly affect surgical outcome, compared to shorter periods of exercise restriction or limb immobilisation. CLINICAL SIGNIFICANCE A good outcome can be expected following surgical stabilisation of SDFT luxation. The use of non-absorbable suture was associated with a more successful surgical outcome.
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Affiliation(s)
- D Goh
- Peninsula Emergency and Referral Hospital, Mornington, 3931, Australia
| | - A House
- Peninsula Emergency and Referral Hospital, Mornington, 3931, Australia
| | - A P Moores
- Anderson Moores Veterinary Specialists, Winchester, SO21 2LL, UK
| | - A Renwick
- Veterinary Referral Hospital, Dandenong, 3175, Australia
| | - C Franklin
- Peninsula Emergency and Referral Hospital, Mornington, 3931, Australia
| | - E Kulendra
- North Downs Specialist Referrals, Bletchingley, RH1 4QP, UK
| | - S Polak
- Centre for Animal Referral and Emergency, Collingwood, 3066, Australia
| | - J Pink
- Willows Veterinary Centre & Referral Service, Solihull, B90 4NH, UK
| | - M Triglia
- Willows Veterinary Centre & Referral Service, Solihull, B90 4NH, UK
| | | | - M Hamilton
- Hamilton Specialist Referrals, High Wycombe, HP12 3SD, UK
| | - D Sajik
- Hamilton Specialist Referrals, High Wycombe, HP12 3SD, UK
| | - C Pfeiffer
- Melbourne Veterinary School, Faculty of Veterinary and Agricultural Sciences, The University of Melbourne, Parkville, 3010, Australia
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Laselva O, Qureshi Z, Zeng Z, Petrotchenko E, Ramjeesingh M, Hamilton M, Huan L, Borchers C, Pomes R, Young R, Bear C. 634: Identification of binding sites for ivacaftor on CFTR. J Cyst Fibros 2021. [DOI: 10.1016/s1569-1993(21)02057-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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19
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Cotton SM, Menssink J, Filia K, Rickwood D, Hickie IB, Hamilton M, Hetrick S, Parker A, Herrman H, McGorry PD, Gao C. The psychometric characteristics of the Kessler Psychological Distress Scale (K6) in help-seeking youth: What do you miss when using it as an outcome measure? Psychiatry Res 2021; 305:114182. [PMID: 34455216 DOI: 10.1016/j.psychres.2021.114182] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/31/2021] [Revised: 08/10/2021] [Accepted: 08/19/2021] [Indexed: 10/20/2022]
Abstract
This is the first study to describe psychometric properties of the Kessler Psychological Distress Scale (K6) in a large cohort of help-seeking young people presenting to primary mental health care services. The aim was to determine whether the K6 was appropriate for monitoring outcomes in such settings. 1067 young people were recruited from Australian headspace services. We examined dimensionality of the K6, measurement invariance, and how the K6 correlated with the the Patient Health Questionnaire-9 (PHQ-9)and the Generalised Anxiety Disorder-7 Scale (GAD-7). Standardised Response Mean (SRM) and Cohen's d effect size (ES) were used to examine 3-month stability of the K6. The best-fitting model was a two-factor model: (i) nervous and restlessness; and (ii) hopeless, worthless, depressed and effort. Measurement non-invariance was observed for sex and age groups. K6 strongly correlated with the PHQ-9 and GAD-7. The K6 was less sensitive to change compared to these other two measures. There was some support for the K6 being a screener for young people presenting to primary care; however, there issues arise with its use as an outcome measure. These issues include measurement non-invariance, concern about the dimensionality and focus of items, and its sensitivity to change.
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Affiliation(s)
- S M Cotton
- Orygen, Parkville, Melbourne VIC, Australia; Centre for Youth Mental Health, University of Melbourne, Parkville, Melbourne VIC, Australia.
| | - J Menssink
- Orygen, Parkville, Melbourne VIC, Australia; Centre for Youth Mental Health, University of Melbourne, Parkville, Melbourne VIC, Australia
| | - K Filia
- Orygen, Parkville, Melbourne VIC, Australia; Centre for Youth Mental Health, University of Melbourne, Parkville, Melbourne VIC, Australia
| | - D Rickwood
- headspace National Youth Mental Health Foundation Ltd, Melbourne VIC, Australia; Faculty of Health, University of Canberra, Canberra, ACT, Australia
| | - I B Hickie
- Brain and Mind, University of Sydney, Camperdown, NSW, Australia
| | - M Hamilton
- Orygen, Parkville, Melbourne VIC, Australia; Centre for Youth Mental Health, University of Melbourne, Parkville, Melbourne VIC, Australia
| | - S Hetrick
- Department of Psychological Medicine, The University of Auckland, Auckland, Australia
| | - A Parker
- Orygen, Parkville, Melbourne VIC, Australia; Victoria University, Institute of Health and Sport, Melbourne VIC, Australia
| | - H Herrman
- Orygen, Parkville, Melbourne VIC, Australia; Centre for Youth Mental Health, University of Melbourne, Parkville, Melbourne VIC, Australia
| | - P D McGorry
- Orygen, Parkville, Melbourne VIC, Australia; Centre for Youth Mental Health, University of Melbourne, Parkville, Melbourne VIC, Australia
| | - C Gao
- Orygen, Parkville, Melbourne VIC, Australia; Centre for Youth Mental Health, University of Melbourne, Parkville, Melbourne VIC, Australia; Department of Epidemiology and Preventive Medicine, Monash University, Melbourne VIC, Australia
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Oliwa A, Hocking C, Hamilton M, McLean J, Cumming S, Ballantyne B, Jampana R, Longman C, Monckton D, Farrugia M. MYOTONIC DYSTROPHY. Neuromuscul Disord 2021. [DOI: 10.1016/j.nmd.2021.07.262] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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21
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Porter B, Turner C, Monckton D, Bowler M, Roberts M, Rogers M, Rose M, Orrell R, Donachie J, Williams D, Hamilton M, Hewamadduma C, Sodhi J, Marini-Bettolo C. MYOTONIC DYSTROPHY. Neuromuscul Disord 2021. [DOI: 10.1016/j.nmd.2021.07.253] [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: 10/20/2022]
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22
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Porta C, Motzer R, Ejzykowicz F, Blum S, Hamilton M, May J, Huo S, Kral P, Ivanescu C, Choueiri T, Cella D. 668P Matching-adjusted indirect comparison (MAIC) of health-related quality of life (HRQoL) of nivolumab plus cabozantinib (N+C) vs pembrolizumab plus axitinib (P+A) in previously untreated advanced renal cell carcinoma (aRCC). Ann Oncol 2021. [DOI: 10.1016/j.annonc.2021.08.064] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
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23
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George S, Faccone J, Huo S, Zhang Y, Stwalley B, Hamilton M, Le T, Ejzykowicz F. 681P Real-world (RW) clinical outcomes for metastatic renal cell carcinoma (mRCC). Ann Oncol 2021. [DOI: 10.1016/j.annonc.2021.08.077] [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: 10/20/2022] Open
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24
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Manghat N, Kaneria N, Hamilton M. The "filling defect": an appropriate radiological term or a fluoroscopic hangover? Clin Radiol 2021; 76:706-707. [PMID: 34253336 DOI: 10.1016/j.crad.2021.06.016] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/14/2021] [Accepted: 06/21/2021] [Indexed: 11/16/2022]
Affiliation(s)
- N Manghat
- Bristol Royal Infirmary, Bristol, UK.
| | - N Kaneria
- Bristol Royal Infirmary, Bristol, UK
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25
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Hamilton M, Sivasambu H, Behdinan K, Andrysek J. Evaluating the Dynamic Performance of Interfacial Pressure Sensors at a Simulated Body-Device Interface. Can Prosthet Orthot J 2021; 4:36059. [PMID: 37614935 PMCID: PMC10443500 DOI: 10.33137/cpoj.v4i1.36059] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/19/2021] [Accepted: 05/08/2021] [Indexed: 11/23/2022] Open
Abstract
BACKGROUND Pressure sensing at the body-device interface can help assess the quality of fit and function of assistive devices during physical activities and movement such as walking and running. However, the dynamic performance of various pressure sensor configurations is not well established. OBJECTIVES Two common commercially available thin-film pressure sensors were tested to determine the effects of clinically relevant setup configurations focusing on loading areas, interfacing elements (i.e. 'puck') and calibration methods. METHODOLOGY Testing was performed using a customized universal testing machine to simulate dynamic, mobility relevant loads at the body-device interface. Sensor performance was evaluated by analyzing accuracy and hysteresis. FINDINGS The results suggest that sensor calibration method has a significant effect on sensor performance although the difference is mitigated by using an elastomeric loading puck. Both sensors exhibited similar performance during dynamic testing that agree with accuracy and hysteresis values reported by manufacturers and in previous studies assessing mainly static and quasi-static conditions. CONCLUSION These findings suggest that sensor performance under mobility relevant conditions may be adequately represented via static and quasi-testing testing. This is important since static testing is much easier to apply and reduces the burden on users to verify dynamic performance of sensors prior to clinical application. The authors also recommend using a load puck for dynamic testing conditions to achieve optimal performance.
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Affiliation(s)
- M Hamilton
- Institute of Biomedical Engineering, Faculty of Applied Science and Engineering, University of Toronto, Toronto, Canada
- Bloorview Research Institute, Holland Bloorview Kids Rehabilitation Hospital, Toronto, Canada
| | - H Sivasambu
- Bloorview Research Institute, Holland Bloorview Kids Rehabilitation Hospital, Toronto, Canada
| | - K Behdinan
- Department of Mechanical and Industrial Engineering, Faculty of Applied Science and Engineering, University of Toronto, Toronto, Canada
| | - J Andrysek
- Institute of Biomedical Engineering, Faculty of Applied Science and Engineering, University of Toronto, Toronto, Canada
- Bloorview Research Institute, Holland Bloorview Kids Rehabilitation Hospital, Toronto, Canada
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26
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Kittleson M, Patel J, Patel N, Singer-Englar T, Chang D, Velleca A, Kransdorf E, Hamilton M, Czer L, Ramzy D, Kobashigawa J. Is There Bias in Heart Transplant Selection? J Heart Lung Transplant 2021. [DOI: 10.1016/j.healun.2021.01.783] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022] Open
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27
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Patel J, Kittleson M, Deshpande A, Patel N, Singer-Englar T, Hamilton M, Hage A, Moriguchi J, Czer L, Esmailian F, Kobashigawa J. Outcome of the Development of Early Restrictive Physiology after Heart Transplantation. J Heart Lung Transplant 2021. [DOI: 10.1016/j.healun.2021.01.603] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022] Open
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28
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Chang D, Kittleson M, Patel J, Kransdorf E, Hamilton M, Hage A, Nikolova A, Patel N, Singer-Englar T, Czer L, Trento A, Kobashigawa J. Is a Switch to Cyclosporine from Tacrolimus a Risk in Heart Transplant Recipients? J Heart Lung Transplant 2021. [DOI: 10.1016/j.healun.2021.01.412] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022] Open
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29
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Hamilton M, Jean D, Giroux V. A53 STUDYING THE ROLE OF ASCL2 IN THE ESOPHAGEAL EPITHELIUM USING ORGANOIDS. J Can Assoc Gastroenterol 2021. [DOI: 10.1093/jcag/gwab002.051] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Abstract
Abstract
Background
The esophagus is lined with a stratified squamous epithelium that assure protection against the austere environment found in the esophageal lumen. The maintenance of this epithelium is ensured by a rare population of cells: stem cells. Those cells have increased capacity of self-renewal and multipotency, which is the capacity to give rise to every cell types of a tissue. The marker Krt15 was used to identify the first stem cell population in the esophagus. Krt15+ cells display an extended lifespan and they are radioresistant, multipotent and capable of self-renewal. Moreover, it was observed by RNA sequencing that the expression of the transcription factor ASCL2 is strongly increased in Krt15+ cells compared to Krt15- cells. Interestingly, ASCL2 is necessary to maintain the stemness of Lgr5+ intestinal stem cells. It is also a target of the Wnt/β-catenin pathway. The overall goal of this project is to determine the role of ACSL2 in the maintenance of esophageal stem cells and to identify its binding partners since ASCL2 needs to dimerize to efficiently bind DNA.
Aims
Confirm that esophageal organoids are adapted to study ASCL2 in the esophagus.
Methods
Esophageal organoids were established from esophageal epithelial cells from wildtype mice. Following this, organoids were treated with an inhibitor of the Notch pathway (DAPT) to induce hyperplasia or infected with lentiviruses to invalidate Ascl2 (CRISPR/Cas9 approach).
Results
To validate that Ascl2 plays an important role in esophageal cell proliferation, Notch pathway was inhibited through DAPT treatment in esophageal organoids to induce hyperplasia, which was confirmed by increased number of proliferative cells (Ki-67+). ASCL2 protein expression was also increased in DAPT-treated organoids supporting its role in proliferation and confirming that organoid is a good model to study ASCL2 role in esophageal epithelial cells. In this optic, organoids lines invalidated for Ascl2 (CRISPR/Cas9 approach) were established. Our preliminary results suggest that Ascl2 loss affects cell proliferation and organoid size under normal conditions.
Conclusions
The expression of ASCL2 correlates with hyperplasia which supports its role in esophageal epithelium homeostasis.
Funding Agencies
Canada research chair et NSERC
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Affiliation(s)
- M Hamilton
- Immunologie et Biologie cellulaire, Universite de Sherbrooke, Sherbrooke, QC, Canada
| | - D Jean
- Immunologie et Biologie cellulaire, Universite de Sherbrooke, Sherbrooke, QC, Canada
| | - V Giroux
- Immunologie et Biologie cellulaire, Universite de Sherbrooke, Sherbrooke, QC, Canada
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Komber H, Neumann S, Paull J, Andrade M, Lyen S, Manghat N, Hamilton M. Improving Arterial Opacification In Computed Tomography For Trans-catheter Aortic Valve Replacement. J Cardiovasc Comput Tomogr 2020. [DOI: 10.1016/j.jcct.2020.06.174] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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31
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Patel J, Kittleson M, Kransdorf E, Chang D, Czer L, Shen A, Nishihara K, Sharoff R, Hamilton M, Esmailian F, Kobashigawa J. The Natural History of Pre-Existing Donor Specific Antibody and Amnestic Responses after Heart Transplantation. J Heart Lung Transplant 2020. [DOI: 10.1016/j.healun.2020.01.1174] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
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32
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Kittleson M, Patel J, Chang D, Nishihara K, Shen A, Velleca A, Hamilton M, Zakowski P, Czer L, Esmailian F, Kobashigawa J. Effect of the Shingles Vaccine in Altering Clinical Shingles after Heart Transplantation. J Heart Lung Transplant 2020. [DOI: 10.1016/j.healun.2020.01.032] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022] Open
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33
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Mitrousi K, Hamilton M. P1502 A clinical case of mitral annulus disjunction syndrome revealed by cardiac MRI. Eur Heart J Cardiovasc Imaging 2020. [DOI: 10.1093/ehjci/jez319.926] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Abstract
Abstract
A 39year old female patient with a family history of probable sudden cardiac death/long QT syndrome (sister died aged 36) was referred to our Arrhythmia/inherited cardiac conditions clinic. Patient was fit and well. She described occasional postural presyncope and some chest pain with stress. Not on any medication that could prolong QT. On examination she appeared well with normal heart sounds and no clinical signs of heart failure.
Her ECG in clinic confirmed sinus rhythm with normal QTc at 418msec. There were U waves which may reflect late repolarisation of His Purkinje system.
Diagnostic techniques and findings
A 24-hour ECG tape to look at the average QT interval, an exercise tolerance test to look for appropriate shortening of QT interval with exercise and an echocardiogram to exclude significant structural abnormality were requested.
The 24-hour ECG tape confirmed underlying sinus rhythm with multi-focal aberrant beats <1% of total. One symptom demonstrated short run of ventricular bigeminy.
During the exercise tolerance test, QT interval was not obviously prolonged. There were frequent bifocal ventricular ectopic beats in recovery.
The echocardiogram showed minor abnormality with mild left ventricular dilatation, otherwise normal findings.
Patient referred for cardiac MRI In order to rule out any cardiomyopathy.
Cardiac MRI did not show any prolapse on the 3 chamber cine. In addition, the inferior and inferolateral annulus showed thinning passing into the LV, which is a feature of some patients with mitral annulus disjunction syndrome.
We went through the echocardiogram and in one single frame images are suspicious of focal P2 prolapse.
Learning points:
Mitral annulus disjunction (MAD) is an abnormal atrial displacement of the mitral valve leaflet hinge point. It has been associated with mitral valve prolapse and sudden cardiac death.
MAD is usually revealed with echocardiogram.
In this case report we showed that CMR revealed a MAD previously missed by echo.
Abstract P1502 Figure.
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Affiliation(s)
- K Mitrousi
- Bristol Heart Institute, Cardiac MRI department, Bristol, United Kingdom of Great Britain & Northern Ireland
| | - M Hamilton
- Bristol Heart Institute, Cardiac MRI department, Bristol, United Kingdom of Great Britain & Northern Ireland
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Mitrousi K, Moharem-Elgamal S, Manghat N, Hamilton M. P707 Positive rest and negative adenosine stress perfusion in typical angina. Eur Heart J Cardiovasc Imaging 2020. [DOI: 10.1093/ehjci/jez319.380] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
Abstract
Abstract
Clinical Presentation
A 45 year old gentleman seen in Rapid Access Chest Pain Clinic with typical angina (exertional chest pain). No risk factors for CAD. Normal ECG. Pre-test probability of significant CAD 51% .
Diagnostic techniques and findings
The patient was referred for adenosine stress CMR. CMR was performed on a 1.5 Tesla scanner. Cine was performed first, followed by stress perfusion, gadolinium enhance images and finally rest perfusion images. LV systolic function was normal. A significant perfusion defect of the LAD territory was noted on the rest but not on the stress perfusion images. The radiographers confirmed that stress and rest perfusion images were performed normally (stress first). A good physiological response was obtained during the assumed vasodilator stress with > 20% in the HR (from 65-75bpm to 91-107bpm respectively). During the presumed rest perfusion acquisition, HR was similar to the previously recorded resting HR. The spleen was not adequately visible to comment on splenic switch off.
This type of perfusion defect (normal stress/abnormal rest) had not been described before, and there is no evidence that it was due to acquisition error.
A coronary CT was advised to assess the LAD. CT coronary angiogram showed mild coronary calcification. A severe (80%), focal, non-calcified mid LAD stenosis was identified. A mild proximal OM1 stenosis was also noted.
The patient subsequently underwent an invasive angiogram which confirmed the presence of a severe mid LAD stenosis. PCI was performed in the same setting with deployment of a single 4x18mm XIENCE drug eluting stent. The successful procedure was optimised with OCT guidance.
Learning points
Resting perfusion is often considered an integral part of adenosine perfusion imaging in order to overcome dark ring artefact, but it requires an additional contrast injection, prolongs imaging time and adds to cost. Some experts suggest that resting perfusion does not add to clinical interpretation and is not required.
Our case is interesting, showing a previously unreported phenomenon. We cannot explain the reason for it but do not believe that the stress/rest order was reversed (as this would require two radiographers to go off protocol, and they and the supervising physician to be lying) and the physiological response is as expected. It therefore suggests that a rest study may occasionally provide helpful diagnostic information.
Abstract P707 Figure.
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Affiliation(s)
- K Mitrousi
- Bristol Heart Institute, Cardiac MRI department, Bristol, United Kingdom of Great Britain & Northern Ireland
| | - S Moharem-Elgamal
- Bristol Heart Institute, Cardiac MRI department, Bristol, United Kingdom of Great Britain & Northern Ireland
| | - N Manghat
- Bristol Heart Institute, Cardiac MRI department, Bristol, United Kingdom of Great Britain & Northern Ireland
| | - M Hamilton
- Bristol Heart Institute, Cardiac MRI department, Bristol, United Kingdom of Great Britain & Northern Ireland
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35
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Sayles JS, Mancilla Garcia M, Hamilton M, Alexander SM, Baggio JA, Fischer AP, Ingold K, Meredith GR, Pittman J. Social-ecological network analysis for sustainability sciences: a systematic review and innovative research agenda for the future. Environ Res Lett 2019; 14:1-18. [PMID: 35340667 PMCID: PMC8943837 DOI: 10.1088/1748-9326/ab2619] [Citation(s) in RCA: 21] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/24/2023]
Abstract
Social-ecological network (SEN) concepts and tools are increasingly used in human-environment and sustainability sciences. We take stock of this budding research area to further show the strength of SEN analysis for complex human-environment settings, identify future synergies between SEN and wider human-environment research, and provide guidance about when to use different kinds of SEN approaches and models. We characterize SEN research along a spectrum specifying the degree of explicit network representation of system components and dynamics. We then systematically review one end of this spectrum, what we term "fully articulated SEN" studies, which specifically model unique social and ecological units and relationships. Results show more focus on methodological advancement and applied ends. While there has been some development and testing of theories, this remains an area for future work and would help develop SENs as a unique field of research, not just a method. Authors have studied diverse systems, while mainly focused on the problem of social-ecological fit alongside a scattering of other topics. There is strong potential, however, to engage other issues central to human-environment studies. Analyzing the simultaneous effects of multiple social, environmental, and coupled processes, change over time, and linking network structures to outcomes are also areas for future advancement. This review provides a comprehensive assessment of (fully articulated) SEN research, a necessary step that can help scholars develop comparable cases and fill research gaps.
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Affiliation(s)
- J S Sayles
- ORISE Fellow Appointed with the U.S. Environmental Protection Agency, Office of Research and Development, National Health and Environmental Effects Research Laboratory, Atlantic Ecology Division, Narragansett, RI, USA
| | - M Mancilla Garcia
- Stockholm Resilience Centre, Stockholm University, Stockholm, Sweden
| | - M Hamilton
- School of Environment and Natural Resources, The Ohio State University, Columbus, OH, USA
| | - S M Alexander
- Environmental Change and Governance Group, Faculty of Environment, University of Waterloo, Waterloo, Ontario, Canada
| | - J A Baggio
- Department of Political Science, University of Central Florida, Orlando, FL, 32816, USA
- Sustainable Coastal Systems Cluster, National Center for Integrated Coastal Research, University of Central Florida, Orlando, FL, 32816, USA
| | - A P Fischer
- School for Environment and Sustainability, University of Michigan, Ann Arbor, MI, USA
| | - K Ingold
- Institute of Political Science and Oeschger Centre for Climate Change Research, University of Bern, Switzerland
- Department of Environmental Social Sciences, Eawag, Aquatic Research, Dübendorf, Switzerland
| | - G R Meredith
- Department of Environment and Society, Quinney College of Natural Resources, Utah State University, Logan, UT, USA
| | - J Pittman
- School of Planning, University of Waterloo, Waterloo, Ontario, Canada
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Veerappan S, Moharem-Elgamal S, Hamilton M. P464Categorization of heterotaxy disorders on cardiac magnetic resonance imaging: a single institution experience. Eur Heart J Cardiovasc Imaging 2019. [DOI: 10.1093/ehjci/jez118.047] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Affiliation(s)
- S Veerappan
- Bristol Heart Institute, Bristol, United Kingdom of Great Britain & Northern Ireland
| | - S Moharem-Elgamal
- Bristol Heart Institute, Bristol, United Kingdom of Great Britain & Northern Ireland
| | - M Hamilton
- Bristol Heart Institute, Bristol, United Kingdom of Great Britain & Northern Ireland
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37
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Formato G, Hart E, Hamilton M, Manghat N, Bucciarelli-Ducci C, Caputo M, Schievano S, Auricchio F, Conti M, Biglino G. 283Morphometric analysis of internal carotid arteries in hypertensives implementing a semi-automatic measurement platform for magnetic resonance imaging data. Eur Heart J Cardiovasc Imaging 2019. [DOI: 10.1093/ehjci/jez114.001] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
Affiliation(s)
| | - E Hart
- Bristol Heart Institute, Bristol, United Kingdom of Great Britain & Northern Ireland
| | - M Hamilton
- University Hospitals Bristol, Bristol, United Kingdom of Great Britain & Northern Ireland
| | - N Manghat
- University Hospitals Bristol, Bristol, United Kingdom of Great Britain & Northern Ireland
| | - C Bucciarelli-Ducci
- Bristol Heart Institute, Bristol, United Kingdom of Great Britain & Northern Ireland
| | - M Caputo
- Bristol Heart Institute, Bristol, United Kingdom of Great Britain & Northern Ireland
| | - S Schievano
- Great Ormond Street Hospital for Children, London, United Kingdom of Great Britain & Northern Ireland
| | | | - M Conti
- University of Pavia, Pavia, Italy
| | - G Biglino
- Bristol Heart Institute, Bristol, United Kingdom of Great Britain & Northern Ireland
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Williams MGL, Berlot B, De Francesco V, Mitrousi K, Harries I, Ascione R, Hamilton M, Bucciarelli-Ducci C. P371An unexpected outpouching in an unexpected place. Eur Heart J Cardiovasc Imaging 2019. [DOI: 10.1093/ehjci/jez109.012] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
Affiliation(s)
- M G L Williams
- Bristol Heart Institute, Department of Cardiology, Bristol, United Kingdom of Great Britain & Northern Ireland
| | - B Berlot
- Bristol Heart Institute, Department of Cardiology, Bristol, United Kingdom of Great Britain & Northern Ireland
| | - V De Francesco
- Bristol Heart Institute, Department of Cardiology, Bristol, United Kingdom of Great Britain & Northern Ireland
| | - K Mitrousi
- Bristol Heart Institute, Department of Cardiology, Bristol, United Kingdom of Great Britain & Northern Ireland
| | - I Harries
- Bristol Heart Institute, Department of Cardiology, Bristol, United Kingdom of Great Britain & Northern Ireland
| | - R Ascione
- Bristol Heart Institute, Cardiothoracic Surgery, Bristol, United Kingdom of Great Britain & Northern Ireland
| | - M Hamilton
- Bristol Heart Institute, Department of Radiology, Bristol, United Kingdom of Great Britain & Northern Ireland
| | - C Bucciarelli-Ducci
- Bristol Heart Institute, Department of Cardiology, Bristol, United Kingdom of Great Britain & Northern Ireland
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Kobashigawa J, Patel J, Kittleson M, Kransdorf E, Dimbil S, Levine R, Esmailian G, Kawata C, Czer L, Hamilton M, Ramzy D, Zhang X. Non-HLA Antibodies as a Cause for Biopsy Negative Rejection: Is It Worth Testing for Them? J Heart Lung Transplant 2019. [DOI: 10.1016/j.healun.2019.01.200] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022] Open
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Velleca A, Kao T, Kearney B, Patel J, Kittleson M, Levine R, Dimbil S, Mersola S, Hamilton M, Esmailian F, Kobashigawa J. Intravenous Methamphetamine Does Not Appear to Be a Contraindication for Heart Donation in Heart Transplantation. J Heart Lung Transplant 2019. [DOI: 10.1016/j.healun.2019.01.213] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022] Open
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Czer L, Kittleson M, Patel J, Kransdorf E, Levine R, Dimbil S, Sharoff R, Kearney B, Chang D, Hamilton M, Esmailian F, Kobashigawa J. 10-Year Outcomes in Heart-Kidney Transplant Patients: Is There a Protective Effect for the Donor Heart? J Heart Lung Transplant 2019. [DOI: 10.1016/j.healun.2019.01.528] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022] Open
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Drozdowska BA, MacKinnon S, Hamilton M, Noel-Storr AH, McShane R, Quinn T. 57ARE METHODOLOGICAL QUALITY AND COMPLETENESS OF REPORTING ASSOCIATED WITH CITATION-BASED MEASURES OF PUBLICATION IMPACT? A SECONDARY ANALYSIS OF A SYSTEMATIC REVIEW OF DEMENTIA BIOMARKER STUDIES. Age Ageing 2018. [DOI: 10.1093/ageing/afy127.06] [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: 11/15/2022] Open
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Lip GYH, Keshishian A, Li X, Hamilton M, Masseria C, Dhamane A, Luo X, Mardekian J, Friend K, Nadkarni A, Pan X, Baser O, Deitelzweig S. P2903Comparative effectiveness and safety between non-VKA oral anticoagulants in non-valvular atrial fibrillation patients: a dose subgroup analysis of the ARISTOPHANES study. Eur Heart J 2018. [DOI: 10.1093/eurheartj/ehy565.p2903] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Affiliation(s)
- G Y H Lip
- University of Birmingham, Institute of Cardiovascular Sciences, Birmingham, United Kingdom
| | - A Keshishian
- STATinMED Research, Ann Arbor, MI, United States of America
| | - X Li
- Bristol-Myers Squibb Company, Lawrenceville, NJ, United States of America
| | - M Hamilton
- Bristol-Myers Squibb Company, Lawrenceville, NJ, United States of America
| | - C Masseria
- Pfizer, Inc, New York, NY, United States of America
| | - A Dhamane
- Bristol-Myers Squibb Company, Lawrenceville, NJ, United States of America
| | - X Luo
- Pfizer, Inc, Groton, CT, United States of America
| | - J Mardekian
- Pfizer, Inc, New York, NY, United States of America
| | - K Friend
- Bristol-Myers Squibb Company, Lawrenceville, NJ, United States of America
| | - A Nadkarni
- Bristol-Myers Squibb Company, Lawrenceville, NJ, United States of America
| | - X Pan
- Bristol-Myers Squibb Company, Wallingford, CT, United States of America
| | - O Baser
- Columbia University Medical Center, New York, NY, United States of America
| | - S Deitelzweig
- Ochsner Clinic Foundation, New Orleans, LA, United States of America
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Lip GYH, Keshishian A, Li X, Hamilton M, Masseria C, Dhamane A, Luo X, Mardekian J, Friend K, Nadkarni A, Pan X, Baser O, Deitelzweig S. P2568Comparisons of clinical and economic outcomes between non-VKA oral anticoagulants and warfarin among non-valvular atrial fibrillation patients: the ARISTOPHANES study. Eur Heart J 2018. [DOI: 10.1093/eurheartj/ehy565.p2568] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Affiliation(s)
- G Y H Lip
- University of Birmingham, Institute of Cardiovascular Sciences, Birmingham, United Kingdom
| | - A Keshishian
- STATinMED Research, Ann Arbor, MI, United States of America
| | - X Li
- Bristol-Myers Squibb Company, Lawrenceville, NJ, United States of America
| | - M Hamilton
- Bristol-Myers Squibb Company, Lawrenceville, NJ, United States of America
| | - C Masseria
- Pfizer, Inc, New York, NY, United States of America
| | - A Dhamane
- Bristol-Myers Squibb Company, Lawrenceville, NJ, United States of America
| | - X Luo
- Pfizer, Inc, Groton, CT, United States of America
| | - J Mardekian
- Pfizer, Inc, New York, NY, United States of America
| | - K Friend
- Bristol-Myers Squibb Company, Lawrenceville, NJ, United States of America
| | - A Nadkarni
- Bristol-Myers Squibb Company, Lawrenceville, NJ, United States of America
| | - X Pan
- Bristol-Myers Squibb Company, Wallingford, CT, United States of America
| | - O Baser
- Columbia University Medical Center, New York, NY, United States of America
| | - S Deitelzweig
- Ochsner Clinic Foundation, New Orleans, LA, United States of America
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Deitelzweig S, Keshishian A, Li X, Hamilton M, Masseria C, Dhamane A, Luo X, Mardekian J, Friend K, Nadkarni A, Pan X, Baser O, Lip GYH. P2567Comparisons of clinical and economic outcomes between non-VKA oral anticoagulants among non-valvular atrial fibrillation patients: the ARISTOPHANES study. Eur Heart J 2018. [DOI: 10.1093/eurheartj/ehy565.p2567] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Affiliation(s)
- S Deitelzweig
- Ochsner Clinic Foundation, New Orleans, LA, United States of America
| | - A Keshishian
- STATinMED Research, Ann Arbor, MI, United States of America
| | - X Li
- Bristol-Myers Squibb Company, Lawrenceville, NJ, United States of America
| | - M Hamilton
- Bristol-Myers Squibb Company, Lawrenceville, NJ, United States of America
| | - C Masseria
- Pfizer, Inc, New York, NY, United States of America
| | - A Dhamane
- Bristol-Myers Squibb Company, Lawrenceville, NJ, United States of America
| | - X Luo
- Pfizer, Inc, Groton, CT, United States of America
| | - J Mardekian
- Pfizer, Inc, New York, NY, United States of America
| | - K Friend
- Bristol-Myers Squibb Company, Lawrenceville, NJ, United States of America
| | - A Nadkarni
- Bristol-Myers Squibb Company, Lawrenceville, NJ, United States of America
| | - X Pan
- Bristol-Myers Squibb Company, Wallingford, CT, United States of America
| | - O Baser
- Columbia University Medical Center, New York, NY, United States of America
| | - G Y H Lip
- University of Birmingham, Institute of Cardiovascular Sciences, Birmingham, United Kingdom
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Patel J, Johl M, Kittleson M, Czer L, Dimbil S, Levine R, Musto N, Chang D, Hamilton M, Trento A, Kobashigawa J. 5-Year Outcome of Renal Function with Patients on Renal-Sparing Protocol After Heart Transplantation. J Heart Lung Transplant 2018. [DOI: 10.1016/j.healun.2018.01.026] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
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Patel J, Kittleson M, Czer L, Chang D, Dimbil S, Levine R, Velleca A, Kransdorf E, Hamilton M, Trento A, Kobashigawa J. Epstein-Barr Virus Mismatch (Donor+/Recipient-): Is Cancer the Only Risk? J Heart Lung Transplant 2018. [DOI: 10.1016/j.healun.2018.01.910] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022] Open
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Deitelzweig S, Farmer C, Luo X, Vo L, Li X, Hamilton M, Horblyuk R, Ashaye A. Risk of major bleeding in patients with non-valvular atrial fibrillation treated with oral anticoagulants: a systematic review of real-world observational studies. Curr Med Res Opin 2017. [PMID: 28644048 DOI: 10.1080/03007995.2017.1347090] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
Abstract
OBJECTIVE To conduct a systematic review of real-world (RWD) studies comparing the risk of major bleeding (MB) among patients with non-valvular atrial fibrillation (NVAF) on direct oral anticoagulants (DOACs) or warfarin. METHODS MEDLINE, Embase, NHS-EED, and EconLit were searched for RWD studies published between January 2003 and November 2016 comparing MB risk among DOACs and warfarin. Proceedings of clinical conferences from 2012 to 2016 were reviewed. RESULTS A total of 4218 citations were identified, 26 of which met eligibility criteria. Most studies were retrospective analyses of administrative claims databases and patient registries (n = 23 of 26); about half were based in the United States (n = 15). Apixaban showed a significantly lower risk of MB versus warfarin in all eight included studies. MB risk was either significantly lower (n = 9 of 16) or not significantly different (n = 7 of 16) between dabigatran and warfarin; there was no significant difference between rivaroxaban and warfarin in all seven included studies. The risk was significantly lower with apixaban versus rivaroxaban (n = 7 of 7) but not significantly different from dabigatran (n = 6 of 7). MB risk was significantly lower (n = 3 of 4) or not significantly different (n = 1 of 4) with dabigatran versus rivaroxaban. No evidence was identified for edoxaban. CONCLUSION DOACs were associated with similar or lower risks of MB versus warfarin. A lower MB risk was consistently observed for apixaban, but less consistently for dabigatran; MB risk was similar between rivaroxaban and warfarin. Among DOACs, the risk of MB with apixaban was consistently lower than with rivaroxaban, but similar to dabigatran.
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Affiliation(s)
- S Deitelzweig
- a Ochsner Clinic Foundation , Department of Hospital Medicine , New Orleans , LA , USA
| | | | - X Luo
- c Pfizer, Inc. , New York , NY , USA
| | - L Vo
- d Bristol-Myers Squibb , Lawrence , NJ , USA
| | - X Li
- d Bristol-Myers Squibb , Lawrence , NJ , USA
| | - M Hamilton
- d Bristol-Myers Squibb , Lawrence , NJ , USA
| | | | - A Ashaye
- e Evidera Inc. , Waltham , MA , USA
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Li X, Lip G, Keshishian A, Hamilton M, Horblyuk R, Gupta K, Luo X, Mardekian J, Friend K, Nadkarni A, Pan X, Deitelzweig S. P3603Effectiveness and safety of standard and lower dose apixaban compared to warfarin in non-valvular atrial fibrillation patients: a propensity score matched analysis. Eur Heart J 2017. [DOI: 10.1093/eurheartj/ehx504.p3603] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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Li X, Deitelzweig S, Keshishian A, Hamilton M, Horblyuk R, Gupta K, Luo X, Mardekian J, Friend K, Nadkarni A, Pan X, Lip G. P3588Effectiveness and safety of apixaban versus warfarin among high-risk subgroups of non-valvular atrial fibrillation patients: a propensity score matched analysis. Eur Heart J 2017. [DOI: 10.1093/eurheartj/ehx504.p3588] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
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