475 results match your criteria: "Quebec Heart-Lung Institute[Affiliation]"

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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Background: Atrial fibrillation (AF) has been identified as a marker of advanced cardiac damage in aortic stenosis patients. However, the factors associated with poorer outcomes among AF patients in contemporary TAVR practice, particularly regarding mortality and heart failure (HF)-related hospitalizations, remain largely unknown.

Methods: Multicenter study including consecutive patients with a history of AF, evaluating the clinical outcomes and predictors of mortality, and HF-related hospitalization, who underwent TAVR with newer-generation devices using balloon or self-expandable valves.

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Objectives: Our primary objective was to assess the association between symptoms at the time of surgery and postoperative pulmonary complications and mortality in patients with COVID-19. Our secondary objective was to compare postoperative outcomes between patients who had recovered from COVID-19 and asymptomatic patients and explore the effect of the time elapsed between infection and surgery in the former. Our hypotheses were that symptomatic patients had a higher risk of pulmonary complications, whereas patients who had recovered from the infection would exhibit outcomes similar to those of asymptomatic patients.

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Routine Spironolactone in Acute Myocardial Infarction.

N Engl J Med

November 2024

From the Population Health Research Institute, McMaster University (S.S.J., M.-A.E., S.F.L., R. Mian, J.T., S.R.M., P.J.D., J.E., M.K.N., J.D.S., D.C., S.T., S.Y.), and Hamilton Health Sciences (S.S.J., M.-A.E., S.F.L., R. Mian, S.R.M., P.J.D., J.E., M.K.N., J.D.S., D.C.), Hamilton, ON, Centre Hospitalier Universitaire de Sherbrooke, Sherbrooke, QC (M.-A.E.), the University of British Columbia and Centre for Cardiovascular Innovation, Vancouver Coastal Health, Vancouver (J.A.C.), the Department of Medicine, University of Saskatchewan, Moose Jaw (W.T.), London Health Sciences Centre, University of Western Ontario, London (S.L.), Southlake Regional Health Centre, Newmarket, University of Toronto, Toronto (W.J.C.), Quebec Heart-Lung Institute, Laval University, Quebec, QC (O.F.B.), and St. Mary's Hospital, Kitchener, ON (A.P.) - all in Canada; the University of Michigan, Ann Arbor (B.P.); the Medical Faculty, University Clinic of Cardiology, University Ss. Cyril and Methodius, Skopje, North Macedonia (S.K., B.Z.); Sorbonne University, ACTION Study Group, Centre Hospitalier Universitaire Pitié-Salpêtrière Assistance Publique-Hôpitaux de Paris, Paris (G.M.); Dutch Network for Cardiovascular Research, Utrecht, Radboud University Medical Center, Nijmegen, and Northwest Clinics, Alkmaar - all in the Netherlands (J.H.C.); University Clinical Center of Serbia and the Faculty of Medicine, University of Belgrade (G.S.), and Institut za Kardiovaskularne Bolesti Dedinje-Belgrade (D.T.) - all in Belgrade; the Cardiology Department, University Hospital La Paz, Madrid (R. Moreno); NIHR Sheffield Biomedical Research Centre, Sheffield Teaching Hospitals NHS Foundation Trust, and the Division of Clinical Medicine, University of Sheffield, Sheffield - both in the United Kingdom (R.F.S.); the Caril and Edyth Lindner Center for Research and Education, Christ Hospital Health Network, Cincinnati (T.D.H.); the Cardiology Division, Heart Center, Luzerner Kantonsspital, and the Faculty of Health Sciences and Medicine, University of Lucerne, Lucerne, Switzerland (M.B.); University Hospital Brno, Brno, Czech Republic (P.K.); the Department of Cardiology, Peninsula Health, Frankston, VIC, and Peninsula Clinical School, Central Clinical School. Monash University, Melbourne, VIC - both in Australia (R.B.); B.P. Koirala Institute of Health Sciences, Dharan, Nepal (S.K.S.); and Clinical Hospital Tetovo, Tetovo, North Macedonia (V.A.).

Background: Mineralocorticoid receptor antagonists have been shown to reduce mortality in patients after myocardial infarction with congestive heart failure. Whether routine use of spironolactone is beneficial after myocardial infarction is uncertain.

Methods: In this multicenter trial with a 2-by-2 factorial design, we randomly assigned patients with myocardial infarction who had undergone percutaneous coronary intervention to receive either spironolactone or placebo and either colchicine or placebo.

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Molecular Features of Calcific Aortic Stenosis in Female and Male Patients.

CJC Open

September 2024

Institut universitaire de cardiologie et pneumologie de Québec [Quebec Heart & Lung Institute], Université Laval, Québec City, Québec, Canada.

Over the past 15 years, sex-related differences in aortic valve (AV) stenosis (AS) have been highlighted, affecting various aspects of AS, such as the pathophysiology, AV lesions, left ventricle remodelling, and outcomes. Female patients were found to present a more profibrotic pattern of leaflet remodelling and/or thickening, whereas male patients have a preponderance of calcification within stenosed leaflets. The understanding of these sex differences is still limited, owing to the underrepresentation of female patients in many basic and clinical research studies and trials.

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Article Synopsis
  • The study focuses on identifying risk factors for stent thrombosis (ST) in patients with STEMI who underwent primary PCI, using data from the TOTAL trial involving over 10,000 patients.
  • Out of the participants, 1.54% experienced ST within a year, with factors like prior heart attacks, number of stents, and certain medications influencing risk.
  • The findings suggest that while ST remains a common complication, different predictors exist for ST occurring at different times after the procedure, emphasizing the need for tailored preventive strategies.
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Article Synopsis
  • Heart failure (HF) and aortic stenosis (AS) often occur together, complicating treatment due to their related effects on the heart’s function and high rates of serious outcomes.
  • Despite improvements in aortic valve replacement methods, HF is still a major reason patients are rehospitalized and is closely linked to higher mortality rates after surgery.
  • Understanding how HF develops in patients with AS involves studying heart changes caused by the valve's narrowing, the effects of valve replacement, and the role of other health conditions and biomarkers that indicate heart function and risk levels.
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Article Synopsis
  • An interatrial shunt is being studied as a potential treatment for heart failure, aimed at lowering left atrial pressure and improving symptoms and outcomes for patients.
  • In a clinical trial involving 508 patients, participants were randomly assigned to receive either the shunt or a placebo, with their progress tracked over a maximum of two years.
  • Results showed that while the shunt had no major safety issues, it did not significantly improve overall effectiveness compared to the placebo, although it appeared to reduce adverse cardiovascular events in patients with reduced left ventricular ejection fraction.
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Objectives: Radiomics can predict patient outcomes by automatically extracting a large number of features from medical images. This study is aimed to investigate the sensitivity of radiomics features extracted from 2 different pipelines, namely, Pyradiomics and RaCat, as well as the impact of gray-level discretization on the discovery of immune checkpoint inhibitors (ICIs) biomarkers.

Methods: A retrospective cohort of 164 non-small cell lung cancer patients administered with ICIs was used in this study.

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Percutaneous transcatheter structural heart interventions have considerably expanded within the last two decades, improving clinical outcomes and quality of life versus guideline-directed medical therapy for patients frequently ineligible for surgical treatment. Transcatheter structural heart interventions comprise valve implantation or repair and also occlusions of the patent foramen ovale, atrial septal defects and left atrial appendage. These procedures expose structural devices to arterial or venous blood flow with various rheological conditions leading to potential thrombotic complications and embolisation.

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Article Synopsis
  • * Optimize PRO, a prospective study, implements two strategies: using a cusp overlap technique during TAVR and a CD algorithm that assesses patients based on their post-procedure ECG for early discharge decisions.
  • * Results indicate that patients with conduction disturbances had a significantly higher PPI rate at 30 days compared to those without (28.1% vs 1.5%), but the standardized management of CDs led to similar safety outcomes, suggesting effective early recognition and monitoring of arrhythm
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Article Synopsis
  • Device-related thrombosis (DRT) occurs frequently after left atrial appendage closure (LAAC), with notable differences in diagnosis timing and outcomes between men and women.
  • Women make up 34.7% of DRT patients in the study and tend to be older and have fewer comorbidities compared to men, but DRT in women is diagnosed significantly later.
  • Both genders have similar treatment outcomes and overall mortality rates, indicating that treatment strategies are equally effective regardless of sex.
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Transcatheter aortic valve implantation (TAVI) is now utilised as a less invasive alternative to surgical aortic valve replacement (SAVR) across the whole spectrum of surgical risk. Long-term durability of the bioprosthetic valves has become a key goal of TAVI as this procedure is now considered for younger and lower-risk populations. The purpose of this article is to present a state-of-the-art overview on the definition, aetiology, risk factors, mechanisms, diagnosis, clinical impact, and management of bioprosthetic valve dysfunction (BVD) and failure (BVF) following TAVI with a comparative perspective versus SAVR.

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Wearable device-measured moderate to vigorous physical activity and risk of degenerative aortic valve stenosis.

Eur Heart J

July 2024

Department of Cardiology, Fuwai Hospital, National Center for Cardiovascular Disease, Chinese Academy of Medical Science, Peking Union Medical College, No.167 Beilishi Road, Beijing 100037, China.

Background And Aims: Physical activity has proven effective in preventing atherosclerotic cardiovascular disease, but its role in preventing degenerative valvular heart disease (VHD) remains uncertain. This study aimed to explore the dose-response association between moderate to vigorous physical activity (MVPA) volume and the risk of degenerative VHD among middle-aged adults.

Methods: A full week of accelerometer-derived MVPA data from 87 248 UK Biobank participants (median age 63.

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Background: The prognostic value of cardiac damage staging classification based on the extent of extravalvular damage has been proposed in moderate/severe aortic stenosis (AS).

Objectives: The purpose of this study was to assess the association of cardiac damage staging with mortality across the spectrum of patients with AS following aortic surgical or transcatheter aortic valve replacement (AVR).

Methods: We conducted a pooled meta-analysis of Kaplan-Meier-derived reconstructed time-to-event data from studies published through February 2023.

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The Clinical Impact of Access Site Selection for Successful Thrombolysis and Intervention in Acute Critical Lower Limb Ischaemia (RAD-ALI Registry).

Life (Basel)

May 2024

Department of Internal Medicine, Invasive Cardiology, Albert Szent-Györgyi Medical School, University of Szeged, Semmelweis Street 8, 6725 Szeged, Hungary.

Acute limb ischaemia (ALI) is of great clinical importance due to its consequent serious complications and high comorbidity and mortality rates. The purpose of this study was to compare the acute success and complication rates of CDT performed via transradial, transbrachial, and transfemoral access sites in patients with acute lower limb vascular occlusion and to investigate the 1-year outcomes of CDT and MT for ALI. Between 2008 and 2019, 84 consecutive patients with ALI were treated with CDT in a large community hospital.

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Aims: In low-risk patients with severe aortic stenosis (AS), sutureless surgical aortic valve replacement (SU-SAVR) may be an alternative to transcatheter aortic valve implantation (TAVI). The risk of heart failure hospitalization (HFH) after aortic valve replacement (AVR) in this population is incompletely characterized. This study aims to investigate the incidence, predictors, and outcomes of HFH in patients undergoing SU-SAVR versus TAVI.

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Article Synopsis
  • * A pilot randomized trial will involve 90 donors and 324 organ recipients across nine hospitals in Ontario and Québec, with participants receiving either tacrolimus or a placebo before organ retrieval.
  • * Researchers will assess the trial's feasibility, including donor enrollment and recipient consent, while monitoring graft function and survival; findings will be shared publicly through publications and conferences.
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Aims: Interatrial shunts are under evaluation as a treatment for heart failure (HF); however, their in vivo flow performance has not been quantitatively studied. We aimed to investigate the fluid dynamics properties of the 0.51 cm orifice diameter Ventura shunt and assess its lumen integrity with serial transesophageal echocardiography (TEE).

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Aortic Valve Calcification Density Measured by MDCT in the Assessment of Aortic Stenosis Severity.

Circ Cardiovasc Imaging

May 2024

Institut Universitaire de Cardiologie et Pneumologie de Québec (Quebec Heart & Lung Institute), Université Laval, Canada (A.P., N.L., N.S.B.M., L.T., C.R., M.-A.C.).

Article Synopsis
  • The study compares aortic valve calcification (AVC) indexed to the aortic annulus area (AA) using Doppler echocardiography and multidetector computed tomography in patients with aortic stenosis (AS).
  • Data from 889 mainly White patients showed that using AVCd measures provides stronger correlations with hemodynamic variables and better predictive outcomes for all-cause mortality compared to traditional AVC measures.
  • AVCd ratio thresholds for identifying severe AS were established at 334 Agatston units for women and 467 for men, with AVCd proving superior in predicting survival under medical treatment across various patient subgroups.
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Ten-Year Outcome of Recanalization or Medical Therapy for Concomitant Chronic Total Occlusion After Myocardial Infarction.

J Am Heart Assoc

May 2024

Department of Cardiology, Heart Center, Amsterdam UMC, Location AMC Amsterdam Cardiovascular Sciences Amsterdam the Netherlands.

Article Synopsis
  • - The EXPLORE trial was a 10-year study comparing chronic total occlusion (CTO) percutaneous coronary intervention (PCI) to no-CTO PCI in patients who had a ST-segment-elevation myocardial infarction (STEMI).
  • - The trial found that after a median follow-up of 10 years, there was no significant difference in major adverse cardiac events or overall mortality between the two groups, but the CTO PCI group experienced higher cardiovascular mortality.
  • - Although the CTO PCI group had more effective relief from dyspnea (83% vs. 65%), the findings suggest that the benefits of symptom relief should be carefully considered against the increased risk of cardiovascular mortality.
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Left and right ventricular longitudinal systolic function following aortic valve replacement in the PARTNER 2 trial and registry.

Eur Heart J Cardiovasc Imaging

August 2024

Department of Cardiology, Québec Heart & Lung Institute, Laval University, 2725 chemin Ste-Foy, Quebec City, Québec G1V-4G5, Canada.

Aims: Evaluation of left and right ventricular (RV) longitudinal systolic function may enhance risk stratification following aortic valve replacement (AVR). The study objective was to evaluate the changes in left and RV longitudinal systolic function and RV-pulmonary artery (RV-PA) coupling from baseline to 30 days and 1 year after AVR.

Methods And Results: Left ventricular (LV) longitudinal strain (LS), tricuspid annulus plane systolic excursion (TAPSE), and RV-PA coupling were evaluated in patients from the PARTNER 2A surgical AVR (SAVR) arm (n = 985) and from the PARTNER 2 SAPIEN 3 registry (n = 719).

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