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Measuring the arterial phase of the right coronary artery in the patients suspected of coronary artery disease: a dual study by dynamic angiography and deep learning program. Eur Heart J 2022. [DOI: 10.1093/eurheartj/ehab849.182] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
Abstract
Funding Acknowledgements
Type of funding sources: None.
Background. In the diagnosis of coronary artery disease (CAD), coronary angiography (CA) plays a crucial role in determining the location and severity of the stenosis, the anatomical aspect of a lesion. It does not accurately reflect the flow dynamics in the coronary artery. This study aimed to evaluate the coronary flow abnormalities based on our new angiographic technique and Deep Learning (DL) program in patients suspected of CAD.
Methods. We randomly selected patients who were admitted with suspected CAD. All patients underwent our new technique of CA. After the index coronary artery was filled completely with contrast, we stopped the injection. At that time, the blood in white color flew in. The flow characteristics, the shape of the tip, borders, and direction could be clearly observed above a black background of the contrast. In this study, we measured the arterial phase (AP) from the beginning when the blood moved in until the end when all contrasts in black color washed out of the distal vasculature. In the DL protocol, the U-Net model combined with Dense-Net-121 and a binary image classification model are used to predict the beginning and ending frame. To obtain the best image for the DL program, we analyzed only the flow of the right coronary artery (RCA).
Results. 81 patients were enrolled. In patients with normal coronary angiography, the mean AP was 1.86s (27.4 +/- 5.4 frames). In patients with one significant lesion, the mean AP value was 2.35s (35.3 +/- 7.7 frames). The mean difference of the AP between the two groups was 0.49s (95% confidence interval: 0.295 to 0.694). This difference is statistically significant. Our DL has the mean root square error in predicting the AP was 0.34s.
Conclusion. In patients with CAD, the prolonged arterial phase could be accurately estimated using the DL program, reflecting the slow circulation of highly oxygenated blood. It could be used as a marker of coronary perfusion in future studies.
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Anatomy of Spinal Venous Drainage for the Neurointerventionalist: From Puncture Site to Intervertebral Foramen. AJNR Am J Neuroradiol 2022; 43:517-525. [PMID: 35086801 PMCID: PMC8993202 DOI: 10.3174/ajnr.a7409] [Citation(s) in RCA: 19] [Impact Index Per Article: 9.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/18/2021] [Accepted: 10/20/2021] [Indexed: 11/07/2022]
Abstract
CSF-venous fistula is a relatively novel entity that is increasingly being recognized as a cause for spontaneous intracranial hypotension. Recently, our group published the first series of transvenous embolization of CSF-venous fistulas in this journal. Having now performed the procedure in 60 patients, we have garnered increasing familiarity with the anatomy and how to navigate our way through the venous system to any intervertebral foramen in the cervical, thoracic, and lumbar spine. The first part of this review summarizes the organization of spinal venous drainage as described in classic anatomy and interventional radiology texts, the same works that we studied when attempting our first cases. In the second part, we draw mostly on our own experience to provide a practical roadmap from the puncture site to the foramen. On the basis of these 2 parts, we hope this article will serve to collate the relevant anatomic knowledge and give confidence to colleagues who wish to embark on transvenous spinal procedures.
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Racial/ethnic differences in cardiovascular outcomes in a universal healthcare system: insights from the CARTaGENE cohort. Eur Heart J 2021. [DOI: 10.1093/eurheartj/ehab724.3138] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Abstract
Abstract
Background
While prior studies have shown racial/ethnic differences in cardiovascular (CV) outcomes within private or mixed health care systems, it remains uncertain whether inequalities in cardiovascular outcomes exist between different races and ethnicities in universal health care contexts. We aimed to determine whether there are racial/ethnicity disparities in long-term CV outcomes within a single-payer universal health care system.
Methods
The CARTaGENE study is a population-based prospective cohort study with enrollment of 19,996 individuals between 40–69 years in 2009, in the province of Quebec, Canada. Participants residing in four large metropolitan areas were randomly chosen from the provincial health insurance registry by strata of age, sex, and postal codes. Follow-up was available up to 2016. For this analysis, we retained only participants without prior known CV disease. The primary composite endpoint was time to the first CV event or intervention (CV death, acute coronary syndrome, heart failure, coronary revascularization, ischemic stroke, or peripheral vascular event or revascularization). We used unadjusted and adjusted Cox proportional hazard models to evaluate the association of self-defined race/ethnicity with the primary endpoint.
Results
There were 17,802 eligible participants with a mean age of 51 years (52.5% females) with 111,312 person-years of follow-up (median follow-up of 6.6 years). South Asian (SA) participants had the highest prevalence of diabetes mellitus (29%) and hypertension (32%). After adjustment for age and sex, SA ethnicity was associated with a 95% relative increase in risk for CV events, while East/Southeast Asian (ESA) ethnicity was associated with a 42% relative decrease in risk for CV events compared to White participants. After further adjustment for socioeconomic status and CV risk factors, ESA ethnicity remained associated with a similar decreased CV risk. In contrast, the association of SA ethnicity with increased CV risk was attenuated after full adjustment for baseline characteristics (Table 1).
Conclusions
Racial/ethnic disparities in long-term CV outcomes are present in a single-payer universal healthcare setting. ESA ethnicity was associated with a lower risk of long-term CV outcomes. Future studies are needed to corroborate the reduced risk of long-term major CV events associated with ESA ethnicity. Understanding the reasons related to potential CV protection with ESA ethnicity could facilitate endeavors to reduce long-term CV outcomes in other races/ethnicities.
Funding Acknowledgement
Type of funding sources: Public hospital(s). Main funding source(s): McGill Health University Center
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RACIAL/ETHNIC DIFFERENCES IN CARDIOVASCULAR OUTCOMES IN A UNIVERSAL HEALTHCARE SYSTEM: INSIGHTS FROM THE CARTAGENE COHORT. Can J Cardiol 2021. [DOI: 10.1016/j.cjca.2021.07.057] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022] Open
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Doppler ultrasound predicts successful discontinuation of biological DMARDs in rheumatoid arthritis patients in clinical remission. Rheumatology (Oxford) 2021; 60:5549-5559. [PMID: 33748831 DOI: 10.1093/rheumatology/keab276] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/21/2020] [Revised: 03/10/2021] [Indexed: 11/13/2022] Open
Abstract
OBJECTIVE To assess the ability of ultrasound to predict successful tapering and successful discontinuation of biological disease-modifying anti-rheumatic drugs (bDMARDs) at 2-year follow-up in rheumatoid arthritis (RA) patients in sustained remission. METHODS Patients in sustained remission (DAS28-CRP≤2.6) and no radiographic progression the previous year tapered bDMARD according to a standardized regime. One-hundred-and-nineteen of these patients were included in this ultrasound sub-study. At baseline, clinical assessment, MRI, x-ray and ultrasound of 24 joints were performed. Ultrasound-detected synovitis was defined and scored 0-3 using the Outcome in Rheumatology (OMERACT) scoring system at joint level for both greyscale and Doppler activity. Sum scores for each ultrasound modality were calculated for 24 joints at patient level. Final state of treatment was assessed after 2 years. The predictive value of ultrasound measures for successful tapering and discontinuation at 2-year follow-up was assessed via logistic regression analyses. RESULTS Negative IgM-RF (OR = 0.29; 95% Confidence Interval (CI)=0.10-0.85; p = 0.024) and lower Doppler sum score of 24 joints (OR(95%CI)=0.44;(0.15-0.87); p = 0.014) were independent predictors for successful discontinuation of bDMARD at 2-year follow-up. The predictive value of Doppler sum score was independent of MRI findings. Previous numbers of bDMARDs were predictive of successful tapering (OR(95% CI)=0.58(0.35-0.91); p = 0.018), whereas ultrasound was not. Clinical parameters were not predictive for successful tapering/discontinuation. CONCLUSIONS Doppler sum score was an independent predictor for successful discontinuation of bDMARDs at 2-year follow-up - the odds for achieving successful discontinuation decreased by 56% per one-unit increase in Doppler sum score. Ultrasound could not predict successful tapering.
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IMPACT OF CARDIAC REHABILITATION ON 6-MONTH ADHERENCE TO CARDIOVASCULAR PHARMACOTHERAPY: INSIGHTS FROM THE AMI-OPTIMA2 STUDY. Can J Cardiol 2020. [DOI: 10.1016/j.cjca.2020.07.180] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
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Population-scale longitudinal mapping of COVID-19 symptoms, behaviour and testing. Nat Hum Behav 2020; 4:972-982. [PMID: 32848231 PMCID: PMC7501153 DOI: 10.1038/s41562-020-00944-2] [Citation(s) in RCA: 66] [Impact Index Per Article: 16.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/08/2020] [Accepted: 08/05/2020] [Indexed: 12/03/2022]
Abstract
Despite the widespread implementation of public health measures, coronavirus disease 2019 (COVID-19) continues to spread in the United States. To facilitate an agile response to the pandemic, we developed How We Feel, a web and mobile application that collects longitudinal self-reported survey responses on health, behaviour and demographics. Here, we report results from over 500,000 users in the United States from 2 April 2020 to 12 May 2020. We show that self-reported surveys can be used to build predictive models to identify likely COVID-19-positive individuals. We find evidence among our users for asymptomatic or presymptomatic presentation; show a variety of exposure, occupational and demographic risk factors for COVID-19 beyond symptoms; reveal factors for which users have been SARS-CoV-2 PCR tested; and highlight the temporal dynamics of symptoms and self-isolation behaviour. These results highlight the utility of collecting a diverse set of symptomatic, demographic, exposure and behavioural self-reported data to fight the COVID-19 pandemic.
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Population-scale Longitudinal Mapping of COVID-19 Symptoms, Behavior, and Testing Identifies Contributors to Continued Disease Spread in the United States. MEDRXIV : THE PREPRINT SERVER FOR HEALTH SCIENCES 2020:2020.06.09.20126813. [PMID: 32577674 PMCID: PMC7302230 DOI: 10.1101/2020.06.09.20126813] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
Despite social distancing and shelter-in-place policies, COVID-19 continues to spread in the United States. A lack of timely information about factors influencing COVID-19 spread and testing has hampered agile responses to the pandemic. We developed How We Feel, an extensible web and mobile application that aggregates self-reported survey responses, to fill gaps in the collection of COVID-19-related data. How We Feel collects longitudinal and geographically localized information on users' health, behavior, and demographics. Here we report results from over 500,000 users in the United States from April 2, 2020 to May 12, 2020. We show that self- reported surveys can be used to build predictive models of COVID-19 test results, which may aid in identification of likely COVID-19 positive individuals. We find evidence among our users for asymptomatic or presymptomatic presentation, as well as for household and community exposure, occupation, and demographics being strong risk factors for COVID-19. We further reveal factors for which users have been SARS-CoV-2 PCR tested, as well as the temporal dynamics of self- reported symptoms and self-isolation behavior in positive and negative users. These results highlight the utility of collecting a diverse set of symptomatic, demographic, and behavioral self- reported data to fight the COVID-19 pandemic.
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Getting to the bottom of bycatch: a GIS-based toolbox to assess the risk of marine mammal bycatch. ENDANGER SPECIES RES 2020. [DOI: 10.3354/esr01037] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022] Open
Abstract
Marine mammal bycatch poses a particular challenge in developing countries, where data to document bycatch and its effects are often lacking. Using the Bycatch Risk Assessment (ByRA) toolkit, based on InVEST open-source models, we chose 4 field sites in Southeast Asia with varying amounts of data on marine mammals and fishing occurrence: Trat province in the eastern Gulf of Thailand, the Sibu-Tinggi Islands and Kuching Bay, Malaysia, and Kien Giang Biosphere Reserve in southwestern Vietnam. These field sites have similar species of coastal marine mammals, small-scale and commercial fisheries, and support for research from universities and/or management. In Thailand and Kuching, results showed changing patterns of fishing and Irrawaddy dolphin Orcaella brevirostris habitat use across seasons, showing how bycatch risk could change throughout the year. Risk maps for dugongs Dugong dugon in peninsular Malaysia highlighted patterns of bycatch risk concentrated around a mainland fishing pier, and revealed high risk in a northern subregion. In Vietnam, first maps of bycatch risk for the Irrawaddy dolphin showed the highest risk driven by intensive use of gillnets and trawling gear. ByRA pinpointed areas of spatial and seasonal bycatch exposure, and estimated the consequence of bycatch on local species, providing managers with critical information on where to focus bycatch mitigation and meet new global standards for US Marine Mammal Protection Act and other international regulation (e.g. Official Journal of the European Union 2019; Regulation 2019/1241) compliance. The toolbox, a transferable open-source tool, can be used to guide fisheries management, marine mammal conservation, spatial planning, and further research.
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An evidence-based strategy to screen for pulmonary arterial hypertension in systemic sclerosis. Semin Arthritis Rheum 2020; 50:1421-1427. [PMID: 32245697 DOI: 10.1016/j.semarthrit.2020.02.013] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/18/2019] [Revised: 02/20/2020] [Accepted: 02/25/2020] [Indexed: 11/29/2022]
Abstract
BACKGROUND Clinical practice guidelines recommend screening all systemic sclerosis (SSc) patients for pulmonary arterial hypertension (PAH) with yearly echocardiograms. There is a paucity of evidence to support these guidelines. RESEARCH QUESTION Can a prediction model identify SSc patients with a very low probability of PAH and therefore not requiring annual screening echocardiogram? STUDY DESIGN AND METHODS We performed a case-control study of 925 unselected SSc subjects nested in a multi-centered, longitudinal cohort. The probability of PAH for each subject was calculated using the results of multivariate logistic regression models. A cut-off was identified for the estimated probability of PAH below which no subject developed PAH (100% sensitivity). RESULTS Study subjects were predominantly female (87.5%), with mean (SD) age 58.6 (11.7) years and disease duration of 18.2 (12.2) years. Thirty-seven subjects developed PAH during 5407.97 person-years of observation (incidence rate 0.68 per 100 person-years). Shortness of breath (SOB), diffusing capacity for carbon monoxide (DLCO) and NT-proBNP were independent predictors of PAH. All SSc-PAH cases had a probability of PAH of >1.1%. Subjects below this cut-off, none of whom had PAH, accounted for 46.2% of the study population. INTERPRETATION A simple prediction model identified subjects at very low probability of PAH who could potentially forego annual screening echocardiogram. This represents almost half of SSc subjects in a general SSc population. This study, which is the first evidence-based study for the rational use of follow-up echocardiograms in an unselected SSc cohort, requires validation. The scoring system is freely available online at http://pahtool.ladydavis.ca.
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Abstract No. 731 Safety and effectiveness of percutaneous stenting for palliative treatment of superior vena cava syndrome. J Vasc Interv Radiol 2020. [DOI: 10.1016/j.jvir.2019.12.790] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022] Open
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P253 Withdrawal of beta- blockers and ACE inhibitors after left ventricular systolic function recovery in patient with dilated cardiomyopathy randomized control trial. Eur Heart J 2020. [DOI: 10.1093/ehjci/ehz872.081] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
Abstract
Abstract
Funding Acknowledgements
The Rosenfeld Heart Fund
Introduction
recovery of left ventricle (LV) systolic function with normalization of ejection fraction (LVEF) occurs in 10 - 27% of patients with 80% maintaining recovery. However, the need for medical therapy after recovery is often questioned. Previous randomized studies of treatment withdrawal were small, not selected for non-ischemic dilated cardiomyopathy (DCM) and had a reference of improved or recovered EF to > 40% or > 10% change from LVEF at time of diagnosis. Hypothesis: In patients with DCM with recovery of the LV systolic function to an EF (>50%), medical therapy withdrawal is possible without rebound LV systolic dysfunction. Method: This was a pilot randomized control open-label trial with 2:1 randomization for withdrawal of b-blockers and ACE inhibitors in patients with recovered LV systolic function. Patients’ medication discontinuation occurred in 2 phases with a six-month interval and patients were followed for one year. The primary endpoint was LVEF reduction (< 40%). Results: There were 22 patients (10 females) enrolled. The mean age was 60 ± 12y. The mean LVEF at enrollment was 58 ± 5% with no significant difference in the mean LVEF in both groups. Sixteen patients were assigned to the withdrawal group and 6 assigned to the control group. The primary endpoint occurred in 31% of the withdrawal group compared to none of the control. The rate of 1ry outcome after withdrawal of medical therapy was 19%, p-value 0.15. The mean LVEF at 1 year for the treatment withdrawal group was 46.8 ± 12% and control 55 ± 6%, p-value 0.15. In the medication withdrawal group, the mean LVEF reduction was 10.6 ± 11% and the difference between the mean LVEF at enrollment and at 1 year was 10.6 ± 11% with 95% CI (4.6,16.49), p-value 0.0017. Conclusion: In DCM patients with recovery of LV systolic function, we observed worsening of LVEF after withdrawal of b-blockers and ACE inhibitors.
Abstract P253 Figure.
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PREDICTORS OF INCIDENT HEART FAILURE: INSIGHTS FROM THE CARTAGENE STUDY. Can J Cardiol 2019. [DOI: 10.1016/j.cjca.2019.07.487] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022] Open
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P6350Impact of diabetes on serum biomarkers in heart failure with preserved ejection fraction: insights from the spironolactone for heart failure with preserved ejection fraction (TOPCAT) trial. Eur Heart J 2019. [DOI: 10.1093/eurheartj/ehz746.0946] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
Abstract
Abstract
Background and purpose
Diabetes mellitus (DM) is common in heart failure with preserved ejection fraction (HFpEF). Patients with DM and HF with reduced ejection fraction have higher levels of prognostic biomarkers relative to non-diabetics. We sought to examine differences in biomarkers at baseline and over time in patients with HFpEF with and without DM (non-DM).
Methods
The Americas cohort of the TOPCAT trial included 248 subjects with baseline measurements of serum biomarkers and follow-up measures 12 months later. Subjects were identified as non-DM or DM at baseline. Baseline values were compared using non-parametric tests and 12-month changes were compared via linear regression after log-transformation and adjustment for baseline biomarker value, age, gender, randomization strata, and randomized treatment.
Results
At baseline, DM patients had significantly lower eGFR and higher hsCRP, PIIINP, TIMP1, and Gal-3 levels versus non-DM patients (Table). In addition, there was a significantly larger increase over time in levels of hs-TnT, a marker of myocyte death, in DM vs. non-DM patients (p=0.016).
Baseline and 12-Month Biomarkers Baseline % Change at 12 Months Non-DM (n=132) DM (n=116) p Non-DM (n=110) DM (n=94) p eGFR (mL/min/1.73m2) 67 [57, 77] 57 [46, 73] 0.003 −14% (−17, −10) −14% (−18, −10) 0.34 hsCRP (mg/L) 2.4 [1.1, 5.6] 3.1 [1.6, 7.5] 0.046 1% (−5, 3) −11% (−27, 7) 0.54 NT-proBNP (pg/mL) 624 [338, 1235] 629 [278, 1429] 0.80 −2% (−12, 10) −5% (−21, 13) 0.48 hs-TNT (ng/mL) 5.7 [3.1, 12.4] 7.1 [3.7, 14.2] 0.17 −1% (−14, 13) 11% (−3, 27) 0.016 Soluble ST2 (ng/mL) 28 [22, 32] 28 [21, 35] 0.36 −1% (−7, 5) −4% (−9, 2) 0.60 Aldosterone (ng/L) 149 [120, 202] 142 [113, 174] 0.09 17% (9, 26) 23% (14, 33) 0.76 PICP (ng/mL) 137 [101, 169] 127 [102, 155] 0.29 5% (−5, 17) 1% (−9, 12) 0.07 CITP (ng/mL) 1.6 [1.0, 2.8] 1.6 [0.9, 3.0] 0.93 −25% (−37, 10) −23% (−36, −8) 0.87 PIIINP (ng/mL) 23 [16, 30] 28 [21, 36] <0.001 5% (−4, 15) 5% (−3, 14) 0.12 TIMP-1 (ng/mL) 188 [170, 212] 212 [183, 245] <0.001 −1% (−4, 2) −2% (−5, 2) 0.59 Galectin-3 (ng/mL) 20 [16, 23] 22 [18, 28] <0.001 6% (3, 10) 9% (4, 14) 0.52 eGFR, estimated glomerular filtration rate; hsCRP, high-sensitivity CRP; NT-proBNP, N-terminal pro-B-type natriuretic peptide; hs-TnT, high-sensitivity troponin T; PICP, pro-collagen type I carboxy-terminal peptide; CITP, collage type I; PIIINP=pro-collagen type III amino-terminal peptide; TIMP-1=tissue inhibitor of MMP-1.
Conclusions
In comparison to patients without DM, those with DM had poorer renal function and higher baseline levels of markers of myocardial stretch, myocyte death, and pro-fibrotic biomarkers. Further, hs-TnT increased over 12 months only in patients with DM.
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THE IMPACT OF KNOWLEDGE TRANSLATION AND INTEGRATED CARDIOVASCULAR CARE ON EMERGENCY ROOM VISITS OF PATIENTS WITH ATRIAL FIBRILLATION: INSIGHTS FROM THE INTEGRATED-FACILITER PROGRAM. Can J Cardiol 2019. [DOI: 10.1016/j.cjca.2019.07.423] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/01/2022] Open
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Immuno-PET imaging of human tumor necrosis factor alpha in a transgenic mouse model of rheumatoid arthritis. Nucl Med Biol 2019. [DOI: 10.1016/s0969-8051(19)30234-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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An in vivo genome-wide RNAi screen identifies novel mediators of paclitaxel response in breast cancer. Ann Oncol 2019. [DOI: 10.1093/annonc/mdz095.074] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
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CREATION OF A SUITE OF QUALITY IMPROVEMENT DASHBOARDS FOR THE GERIATRIC SCHOLARS PROGRAM. Innov Aging 2018. [DOI: 10.1093/geroni/igy023.3031] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
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USABILITY TESTING THE GERIATRIC SCHOLARS QUALITY IMPROVEMENT DASHBOARDS. Innov Aging 2018. [DOI: 10.1093/geroni/igy023.3034] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
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IMPACT OF CHRONIC RHINOSINUSITIS WITH NASAL POLYPOSIS ON QUALITY OF LIFE BY SINO-NASAL SURGERY HISTORY. Ann Allergy Asthma Immunol 2018. [DOI: 10.1016/j.anai.2018.09.061] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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IMPACT OF THE GERIATRIC SCHOLARS PROGRAM ON PRESCRIBING PRACTICES. Innov Aging 2018. [DOI: 10.1093/geroni/igy023.3032] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
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CATHETER ABLATION FOR ATRIAL FIBRILLATION IN HEART FAILURE WITH REDUCED EJECTION FRACTION: A META-ANALYSIS OF RANDOMIZED CONTROLLED TRIALS. Can J Cardiol 2018. [DOI: 10.1016/j.cjca.2018.07.339] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022] Open
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P5350Potential utility of the SCORE risk estimator to predict fatal cardiovascular events in a North American population: CARTaGENE cohort. Eur Heart J 2018. [DOI: 10.1093/eurheartj/ehy566.p5350] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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PO-372 Investigating the epigenetic changes underlying combination treatment of acute promyelocytic leukaemia with all-trans retinoic acid and arsenic trioxide. ESMO Open 2018. [DOI: 10.1136/esmoopen-2018-eacr25.400] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022] Open
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A novel mutation in the TG gene (G2322S) causing congenital hypothyroidism in a Sudanese family: a case report. BMC MEDICAL GENETICS 2018; 19:69. [PMID: 29720101 PMCID: PMC5932782 DOI: 10.1186/s12881-018-0588-7] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 09/15/2017] [Accepted: 04/19/2018] [Indexed: 01/02/2023]
Abstract
Background Congenital hypothyroidism (CH) has an incidence of approximately 1:3000, but only 15% have mutations in the thyroid hormone synthesis pathways. Genetic analysis allows for the precise diagnosis. Case presentation A 3-week old girl presented with a large goiter, serum TSH > 100 mIU/L (reference range: 0.7–5.9 mIU/L); free T4 < 3.2 pmol/L (reference range: 8.7–16 pmol/L); thyroglobulin (TG) 101 μg/L. Thyroid Tc-99 m scan showed increased radiotracer uptake. One brother had CH and both affected siblings have been clinically and biochemically euthyroid on levothyroxine replacement. Another sibling had normal thyroid function. Both Sudanese parents reported non-consanguinity. Peripheral blood DNA from the proposita was subjected to whole exome sequencing (WES). WES identified a novel homozygous missense mutation of the TG gene: c.7021G > A, p.Gly2322Ser, which was subsequently confirmed by Sanger sequencing and present in one allele of both parents. DNA samples from 354 alleles in four Sudanese ethnic groups (Nilotes, Darfurians, Nuba, and Halfawien) failed to demonstrate the presence of the mutant allele. Haplotyping showed a 1.71 centiMorgans stretch of homozygosity in the TG locus suggesting that this mutation occurred identical by descent and the possibility of common ancestry of the parents. The mutation is located in the cholinesterase-like (ChEL) domain of TG. Conclusions A novel rare missense mutation in the TG gene was identified. The ChEL domain is critical for protein folding and patients with CH due to misfolded TG may present without low serum TG despite the TG gene mutations. Electronic supplementary material The online version of this article (10.1186/s12881-018-0588-7) contains supplementary material, which is available to authorized users.
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Abstract No. 485 Clinical and radiographic determinants of survival in cancer patients with acute pulmonary embolus. J Vasc Interv Radiol 2018. [DOI: 10.1016/j.jvir.2018.01.530] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/17/2022] Open
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Changes in orchid populations and endophytic fungi with rainfall and prescribed burning in Pterostylis revoluta in Victoria, Australia. ANNALS OF BOTANY 2018; 121:321-334. [PMID: 29300863 PMCID: PMC5808809 DOI: 10.1093/aob/mcx164] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/04/2017] [Accepted: 10/30/2017] [Indexed: 05/20/2023]
Abstract
Background and Aims Wildfires are common in seasonally dry parts of the world with a Mediterranean climate. Prescribed burning is used to reduce fuel load and fire risk, but often without reliable information on its effects. This study investigated the effects of prescribed burns in different seasons on Pterostylis revoluta, an autumn-flowering Australian terrestrial orchid, and its orchid mycorrhizal fungi (OMFs) to find the least damaging season for a prescribed burn. Methods Burns were conducted mid-season in spring and summer 2011 and autumn and winter 2012. Orchids were enumerated and measured during their flowering season in autumn 2011-2014 and mycorrhizal fungi were isolated before and after the burns in autumn 2011, 2012 and 2014. Micro-organisms isolated were characterized. DNA was extracted from the OMFs, and the internal transcribed spacer region was amplified by PCR. Amplicons were clustered by restriction fragment length polymorphism (RFLP), and representative amplicons were sequenced. OMF were tested for sensitivity to smoke water. Key Results The number of plants increased up to 4-fold and 90 % of plants became vegetative during this study. Isolation of mycorrhizal fungi increased and isolation of bacteria decreased. Before the burns, the main OMF isolated was unexpectedly Tulasnella calospora (Boud.) Juel. By 2014, after the burns, the expected Ceratobasidium sp. D.P. Rogers was the only OMF isolated in most burnt quadrats, whereas T. calospora was confined to a minority of unburnt 'control' and the 'spring burn' quadrats, which were also the only ones with flowering plants. Conclusions The decline in rainfall during 2010-2012 probably caused the switch from mainly flowering to mainly vegetative plants and the change in OMFs. Burning in spring to summer was less damaging to this orchid than burning in autumn to winter, which should be noted by authorities in fire management plans for fire-prone areas in which this orchid occurs.
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Demonstration in a Cadaver of a Novel Device and Method for Cuff Closure in Hysterectomy. J Minim Invasive Gynecol 2017. [DOI: 10.1016/j.jmig.2017.08.512] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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P1.07-033 Differential Expression of Immune Inhibitory Markers in Association with the Immune Microenvironment in Resected Lung Adenocarcinomas. J Thorac Oncol 2017. [DOI: 10.1016/j.jtho.2017.09.951] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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MODELLING THE IMPACT OF LOW-DENSITY LIPOPROTEIN CHOLESTEROL LOWERING WITH ALIROCUMAB ON CARDIOVASCULAR EVENT REDUCTION IN CANADA. Can J Cardiol 2017. [DOI: 10.1016/j.cjca.2017.07.263] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022] Open
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THE IMPACT OF EMPIRICAL LEFT ATRIAL APPENDAGE ISOLATION IN ATRIAL FIBRILLATION CATHETER ABLATION: A META-ANALYSIS. Can J Cardiol 2017. [DOI: 10.1016/j.cjca.2017.07.292] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022] Open
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THE EFFECT OF PROPROTEIN CONVERTASE SUBTILISIN/KEXIN TYPE 9 ANTIBODIES ON MORTALITY AND CARDIOVASCULAR OUTCOMES: A META-ANALYSIS OF RANDOMIZED CONTROLLED TRIALS. Can J Cardiol 2017. [DOI: 10.1016/j.cjca.2017.07.234] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022] Open
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642 The serum proteomic signature of pediatric AD suggests early Th2/Th17 skewing and an inverse correlation of disease severity with Th1 markers. J Invest Dermatol 2017. [DOI: 10.1016/j.jid.2017.02.664] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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495 Ichthyosis molecular fingerprinting shows profound Th17-skewing and a unique barrier gene expression pattern. J Invest Dermatol 2017. [DOI: 10.1016/j.jid.2017.02.515] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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073 Th17 and Th22 polarization in ichthyosis blood correlates with disease severity and highlights its systemic nature. J Invest Dermatol 2017. [DOI: 10.1016/j.jid.2017.02.086] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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Multiple sclerosis association with psoriasis: a large U.S. population, single centre, retrospective cross-sectional study. J Eur Acad Dermatol Venereol 2017; 31:e397-e398. [DOI: 10.1111/jdv.14205] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/26/2023]
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Hidradenitis suppurativa association at the time of, or subsequent to, diagnosis of inflammatory bowel disease in a large U.S. patient population. J Eur Acad Dermatol Venereol 2017; 31:e311-e312. [PMID: 28000245 DOI: 10.1111/jdv.14097] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/14/2016] [Accepted: 12/14/2016] [Indexed: 11/29/2022]
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Spontaneous Transverse Vaginal Septum: Diagnosis and Management. J Minim Invasive Gynecol 2016. [DOI: 10.1016/j.jmig.2016.08.322] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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MARITAL STATUS, LIVING ARRANGEMENT, AND OUTCOMES FOLLOWING MYOCARDIAL INFARCTION: OBSERVATIONS FROM THE CANADIAN OBSERVATIONAL ANTIPLATELET STUDY (COAPT). Can J Cardiol 2016. [DOI: 10.1016/j.cjca.2016.07.350] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022] Open
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A PROSPECTIVE INVESTIGATION OF THE IMPACT OF AGTR1 A1166C ON THE NEUROHORMONAL AND HEMODYNAMIC EFFECTS OF CANDESARTAN IN HEART FAILURE PATIENTS. Can J Cardiol 2016. [DOI: 10.1016/j.cjca.2016.07.304] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022] Open
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GRACE RISK SCORE: SEX-BASED VALIDITY OF IN-HOSPITAL MORTALITY PREDICTION IN CANADIAN PATIENTS WITH ACUTE CORONARY SYNDROME. Can J Cardiol 2016. [DOI: 10.1016/j.cjca.2016.07.083] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022] Open
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IMPACT OF AN INVASIVE STRATEGY ON IN-HOSPITAL OUTCOMES IN NONAGENARIANS WITH ACUTE CORONARY SYNDROME: INSIGHTS FROM THE AMI-OPTIMA STUDY. Can J Cardiol 2016. [DOI: 10.1016/j.cjca.2016.07.086] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022] Open
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LB759 Multiple sclerosis association with psoriasis: A large, single center, cross sectional study. J Invest Dermatol 2016. [DOI: 10.1016/j.jid.2016.05.006] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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LB763 Risk of melanoma after chronic exposure to aspirin: A large, single center, retrospective study. J Invest Dermatol 2016. [DOI: 10.1016/j.jid.2016.05.012] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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AB0263 Agreement between Das28, Acr/eular, Sdai, Cdai and Ultrasound Remission in Patients with Rheumatoid Arthritis Receiving Biological Treatment in Routine Care. Ann Rheum Dis 2016. [DOI: 10.1136/annrheumdis-2016-eular.3713] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
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159 Changes in psoriasis level of activity for both pre- and post- menopausal state in women: A single-center retrospective study. J Invest Dermatol 2016. [DOI: 10.1016/j.jid.2016.02.186] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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CLINICAL CHARACTERISTICS, MANAGEMENT, AND OUTCOMES OF ACUTE CORONARY SYNDROMES IN RELATION TO RIGHT BUNDLE BRANCH BLOCK ON PRESENTATION. Can J Cardiol 2015. [DOI: 10.1016/j.cjca.2015.07.216] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022] Open
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IM QUÉBEC: A STEMI DATABASE - UNIVERSITY OF MONTRÉAL INTEGRATED HEALTH NETWORK QUALITY ASSURANCE INITIATIVE: REPERFUSION DELAYS AND IN-HOSPITAL OUTCOMES OVER THE FIRST 4 YEARS OF UTILISATION. Can J Cardiol 2015. [DOI: 10.1016/j.cjca.2015.07.034] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022] Open
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IN-HOSPITAL AND LONG-TERM ISCHEMIC AND BLEEDING EVENTS IN PATIENTS WITH MYOCARDIAL INFARCTION UNDERGOING PERCUTANEOUS CORONARY INTERVENTION: FINAL RESULTS FROM THE CANADIAN OBSERVATIONAL ANTIPLATELET STUDY (COAPT). Can J Cardiol 2015. [DOI: 10.1016/j.cjca.2015.07.028] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
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PHYSICIAN ADHERENCE TO EVIDENCE-BASED PHARMACOTHERAPY IN SYSTOLIC HEART FAILURE: DATA FROM THE CANADIAN QUALIFY SURVEY. Can J Cardiol 2015. [DOI: 10.1016/j.cjca.2015.07.570] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022] Open
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