2,611 results match your criteria: "Institut universitaire de cardiologie et de pneumologie del'Université Laval[Affiliation]"

Article Synopsis
  • Deep learning methods show strong potential for predicting lung cancer risk from CT scans, but there's a need for more comprehensive comparisons and validations of these models in real-world settings.
  • The study reviews 21 state-of-the-art deep learning models, analyzing their performance using CT scans from a subset of the National Lung Screening Trial, with a focus on malignant versus benign classification.
  • Results reveal that 3D deep learning models generally outperformed 2D models, with the best 3D model achieving an AUROC of 0.86 compared to 0.79 for the best 2D model, emphasizing the need to choose appropriate pretrained datasets and model types for effective lung cancer risk prediction.
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Hypertensive response to exercise (HRE) is an established risk factor for cardiovascular events. HRE is prevalent among people with excess adiposity. Both obesity and HRE have been individually associated with adverse cardiac remodeling.

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Usefulness of Aortic Valve Calcification in Patients With Low-Flow Aortic Stenosis.

Circ Cardiovasc Imaging

January 2025

Department of Cardiology, Odense University Hospital, Denmark (N.S.B.M., J.S.D., M.A., A.H., R.C.-S., J.E.M., K.A.Ø., M.-A.C.).

Background: Aortic valve calcification (AVC) has been shown to be a powerful assessment of aortic stenosis (AS) severity and a predictor of adverse outcomes. However, its accuracy in patients with low-flow AS has not yet been proven. The objective of the study was to assess the predictive value of AVC in patients with classical low-flow (CLF, that is, low-flow reduced left ventricular ejection fraction) or paradoxical low-flow (PLF, that is, low-flow preserved left ventricular ejection fraction) AS.

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Background: Antiplatelet drugs, such as clopidogrel, ticagrelor, prasugrel, and acetylsalicylic acid, may be associated with a risk of adverse events (AEs). Vanessa's Law was enacted to strengthen regulations to protect Canadians from drug-related side effects (with mandatory reporting of serious adverse events [SAEs]).

Objective: To determine whether Vanessa's Law has led to an increase in SAE reporting among antiplatelet users.

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Introduction: Obesity is an independent risk factor for postoperative atrial fibrillation (POAF) after coronary artery bypass grafting (CABG) surgery. POAF in patients with severe obesity (body mass index [BMI] ≥ 35 kg/m) is less studied. Whether waist circumference (WC) improves prediction of POAF independently of BMI among patients with severe obesity remains unknown.

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Early safety after TAVR according to VARC-3 criteria: incidence, predictors, and clinical impact.

Rev Esp Cardiol (Engl Ed)

December 2024

Département de Cardiologie, Institut universitaire de cardiologie et de pneumologie de Québec, Université Laval, Quebec, Canada. Electronic address:

Introduction And Objectives: The Valve Academic Research Consortium (VARC)-3 definition of the early safety (ES) composite endpoint after transcatheter aortic valve replacement (TAVR) lacks clinical validation. The aim of this study was to determine the incidence, predictors, and clinical impact of ES after TAVR as defined by VARC-3 criteria.

Methods: We performed a multicenter study including 10 078 patients with severe aortic stenosis undergoing transarterial TAVR.

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The brain is highly innervated by sympathetic nerve fibres; however, their physiological purpose is poorly understood. We hypothesized that unilateral cerebral norepinephrine (NE) spillover, an index of cerebral sympathetic nerve activity (SNA), would be elevated when engaging the baroreflex [via lower-body negative pressure (LBNP; -20 and -40 Torr)] and respiratory chemoreflexes [via carbon dioxide (CO) administration (+8 Torr)], independently, and in combination. Twelve young and healthy participants (5 females) underwent simultaneous blood sampling from the right radial artery and internal jugular vein.

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Intraoperative frozen section (FS) examination of oncologic surgical specimens is frequently performed to ensure complete surgical resection. Data on the gross evaluation of surgical margins are limited. We recently published a study suggesting the use of a macroscopic 2.

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Is the time right for preventive cardiology guidelines on sedentary behaviors and sitting time?

Can J Cardiol

December 2024

Institut Universitaire de Cardiologie et de Pneumologie de Québec- Université Laval, Quebec, Canada; Faculty of Medicine, Laval University, Quebec, Canada. Electronic address:

This review looks into sedentary behavior (SB) beyond its simplistic definition of "sitting" while also including sedentary activities. It explores the definition, physiological characteristics, prevalence, and guidelines of SB, contrasting it with physical activity (PA). The discussion encompasses: 1) the association between SB and mortality, with a specific focus on cardiovascular (CV) outcomes; 2) biological mechanisms linking SB to CV health, differentiating between the impacts of acute and chronic sitting additionally, 3) sex and gender differences in SB and, 4) SB as an independent CV risk factor are explored.

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Low-Gradient Severe Aortic Stenosis Is Not Mainstream: Insights From the CURRENT AS Registry-2.

JACC Cardiovasc Interv

November 2024

Institut Universitaire de Cardiologie et de Pneumologie, Université Laval, Quebec City, Quebec, Canada. Electronic address:

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Association of genetically predicted levels of circulating blood lipids with coronary artery disease incidence.

Atherosclerosis

December 2024

Centre de Recherche de l'Institut Universitaire de Cardiologie et de Pneumologie de Québec - Université Laval, Québec, (QC), Canada; Department of Molecular Biology, Medical Biochemistry and Pathology, Faculty of Medicine, Université Laval, Québec, (QC), Canada. Electronic address:

Background And Aims: Estimating the genetic risk of coronary artery disease (CAD) is now possible by aggregating data from genome-wide association studies (GWAS) into polygenic risk scores (PRS). Combining multiple PRS for specific circulating blood lipids could improve risk prediction. Here, we sought to evaluate the performance of PRS derived from CAD and blood lipids GWAS to predict the incidence of CAD.

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Moderate Aortic Stenosis With Cardiac Damage: A New Type of Severe Aortic Stenosis.

Struct Heart

November 2024

Department of Cardiology, Québec Heart & Lung Institute - Laval University, Québec Canada. Institut Universitaire de Cardiologie et de Pneumologie de Québec/Québec Heart and Lung Institute, Université Laval, Québec City, Québec, Canada.

The clinical implications of severe aortic stenosis have been well established. Understanding of moderate aortic stenosis, however, continues to evolve. Athough moderate aortic stenosis may be less clinically impactful in patients with normal ventricular function, it may carry prognostic significance in those patients with a ventricle exhibiting signs of cardiac damage.

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Impact of intensive versus nonintensive antithrombotic treatment on device-related thrombus after left atrial appendage closure.

Rev Esp Cardiol (Engl Ed)

December 2024

Institut Clínic Cardiovascular (ICCV), Hospital Clínic de Barcelona, Instituto de Investigaciones Biomédicas August Pi i Sunyer (IDIBAPS), Barcelona, Spain.

Introduction And Objectives: The optimal antithrombotic therapy (AT) after left atrial appendage closure (LAAC) is debated. We assessed the impact of intensive vs nonintensive AT on the incidence of device-related thrombus (DRT) based on whether the device implantation was classified as optimal or suboptimal.

Methods: This study included patients who underwent successful LAAC in 9 centers.

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Exercise and Fitness Quantification in Clinical Practice: Why and How; and Where Are We Going?

Can J Cardiol

December 2024

Institut Universitaire de Cardiologie et de Pneumologie de Québec-Université Laval, Québec City, Québec, Canada; Faculty of Pharmacy, Laval University, Québec City, Québec, Canada.

Article Synopsis
  • - Exercise quantification is crucial in preventive cardiology, helping clinicians tailor interventions, monitor progress, and evaluate patient risk profiles based on their exercise habits.
  • - The article emphasizes adherence to guidelines from major health organizations and the importance of exercise frameworks, focusing on various populations and specific training methods such as high-intensity interval training.
  • - Future advancements in exercise and fitness quantification include using wearable technology, telemedicine, and incorporating behavioral science to improve patient adherence and overall cardiovascular health.
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N-Phenyl ureidobenzenesulfonates, a novel class of human dihydroorotate dehydrogenase inhibitors inducing differentiation and apoptosis in acute myeloid leukemia cells.

Biomed Pharmacother

December 2024

Faculté de pharmacie, Université Laval, Pavillon Ferdinand-Vandry, 1050 avenue de la Médecine, Québec, QC G1V 0A6,  Canada; Centre de recherche du CHU de Québec-Université Laval, Axe oncologie, Hôpital Saint-François d'Assise, 10 rue de l'Espinay, Québec, QC G1L 3L5, Canada. Electronic address:

N-Phenyl ureidobenzensulfonates (PUB-SOs) are a novel family of dihydroorotate dehydrogenase (DHODH) inhibitors. Herein, we investigate the potential of PUB-SOs to induce acute myeloid leukemia (AML) cell differentiation and apoptosis. To that end, we screened our chemolibrary to select the most potent PUB-SOs based on their antiproliferative activity and their ability to arrest the cell progression of AML cells in the S phase.

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Food choices, microstructure of ingestive behavior and sensory perceptions after bariatric surgery in women: A cross-sectional study.

Appetite

December 2024

Lyfe Institute Research Center, Ecully, France; Centre de Recherche en Nutrition Humaine Rhône-Alpes, CarMeN lab, Univ-Lyon, INSERM, INRAe, Claude Bernard Lyon1 University, Centre Hospitalier Lyon Sud, Hospices Civils de Lyon, Pierre Bénite, France. Electronic address:

Unlabelled: Results regarding the impact of bariatric surgery (BS) on food choices are inconsistent between studies based on self-reported questionnaires, and those using direct measurements. Moreover, the determinants of the modifications of food choices after BS, if any, are still poorly understood. This study compared food choices, food liking, microstructure of ingestive behavior and sensory perceptions between women who had BS in the last 18 months (BS group, n = 19; Roux-en-Y gastric bypass or sleeve gastrectomy) and women with BMI ≥35 kg m (OB group, n = 17) in ecological conditions and explored the associations of food choices with sensory perceptions and food liking.

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Article Synopsis
  • The study investigates differences in thrombo-inflammatory responses and outcomes between non-COVID-19 community-acquired pneumonia (CAP) and COVID-19 CAP in hospitalized adults in Canada.
  • Non-COVID-19 CAP patients displayed lower 28-day mortality rates and fewer complications compared to those with COVID-19, indicating a more effective immune response developed over time against bacterial infections.
  • The findings suggest that the complexities of the immune response to COVID-19 resulted in higher mortality rates, highlighting the challenges posed by emerging viruses compared to known pathogens.
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Background: Little is known regarding long-term consequences (≥5 years) of sport-related concussion (SRC) sustained during adolescence. Adolescent SRC has been linked to athlete considerations of sport participation and subsequent retirement from sport during this critical developmental period. Prolonged SRC symptoms can reduce ability to perform physical activity, and research suggests inactivity can extend years post-injury.

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Wild-type transthyretin cardiac amyloidosis and aortic stenosis: Can carpal tunnel syndrome help distinguish the chicken from the egg?

J Intern Med

November 2024

Referral Center for Cardiac Amyloidosis, Mondor Amyloidosis Network, GRC Amyloid Research Institute and Cardiology Department, APHP Henri Mondor Hospital, Créteil, France.

Article Synopsis
  • - The study investigates the relationship between transthyretin wild-type cardiac amyloidosis (TTRwt-CA) and aortic stenosis (AS), proposing a bidirectional connection where each condition may influence the other and lead to systemic manifestations, including carpal tunnel syndrome (CTS).
  • - In a sample of 411 TTRwt-CA patients, approximately 70% had CTS, which correlated with younger age, more severe cardiac remodeling, and a higher frequency of extracardiac symptoms, while AS occurred in 21% of those with CTS and 31% without.
  • - The research indicates that CTS may differentiate two phenotypes of TTRwt-CA: one associated with systemic involvement and poorly calcified low-flow
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Background: An adverse event (AE) is any undesirable medical manifestation in an individual who has received pharmacological treatment. To be considered serious (SAE), it needs to meet minimally one of the severity criteria by Health Canada. The most recent data (2006) suggested that AEs were underreported (<6%) to health authorities.

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Prosthesis-Patient Mismatch After Transcatheter Aortic Valve Replacement: Lower the Guard or Stay Alert?

JACC Cardiovasc Interv

November 2024

Institut Universitaire de Cardiologie et de Pneumologie de Québec, Université Laval/Québec Heart and Lung Institute, Laval University, Québec, Canada.

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Introduction: Deregulation of the cerebrovascular system has been linked to neurodegeneration, part of a putative causal pathway into etiologies such as Alzheimer's disease (AD). In medical imaging, time-of-flight magnetic resonance angiography (TOF-MRA) and perfusion MRI are the most common modalities used to study this system. However, due to lack of resources, many large-scale studies of AD are not acquiring these images; this creates a conundrum, as the lack of evidence limits our knowledge of the interaction between the cerebrovascular system and AD.

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Aortic root reconstruction operations have undergone substantial evolution with technical modifications, expanding indications, and the need for increasingly complex decision-making. The purpose of this state-of-the-art review is to detail our approach to contemporary aortic root reconstruction operations. First, we review the evolution of root reconstruction procedures over the years and discuss the approach to the aortic root patient for lifetime management of aneurysm and valvular disease in the modern context of management options.

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