216 results match your criteria: "Gagnon Cardiovascular Institute[Affiliation]"

Coronary artery perforation is a feared complication of chronic total occlusion (CTO) percutaneous coronary intervention (PCI). Our objective was to describe the incidence, mechanisms, treatment, and outcomes of coronary artery perforation during CTO PCI. We analyzed the baseline clinical and angiographic characteristics and procedural outcomes of 10,454 CTO PCIs performed in 10,219 patients between 2012 and 2022.

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Background: The clinical course of patients with moderate aortic stenosis (AS) remains incompletely defined.

Objectives: This study sought to analyze the clinical course of moderate AS and compare it with other stages of the disease.

Methods: Multiple electronic databases were searched to identify studies on adult moderate AS.

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Objective: We sought to compare the clinical outcomes with provisional versus double-stenting strategy for left main (LM) bifurcation percutaneous coronary intervention (PCI).

Background: Despite two recent randomized controlled trials (RCTs) and several observational reports, the optimal LM bifurcation PCI technique remains controversial.

Methods: PubMed, Cochrane Central Register of Controlled-Trials (CENTRAL), Clinicaltrials.

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Background: Chronic total occlusion (CTO) percutaneous coronary intervention (PCI) is associated with increased risk of periprocedural complications. Estimating the risk of complications facilitates risk-benefit assessment and procedural planning.

Objectives: This study sought to develop risk scores for in-hospital major adverse cardiovascular events (MACE), mortality, pericardiocentesis, and acute myocardial infarction (MI) in patients undergoing CTO PCI.

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Aim: We evaluated a decision algorithm for percutaneous coronary interventions (PCI) based on a no-stent strategy, corresponding to a combination of scoring balloon angioplasty (SCBA) and drug-coated balloon (DCB), as a first line approach. Stents were used only in unstable patients, or in case of mandatory bailout stenting (BO-stent).

Methods: From April 2019 to March 2020, 984 consecutive patients, including 1922 lesions, underwent PCI.

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Clinical Outcomes in Patients With ST-Segment Elevation MI and No Standard Modifiable Cardiovascular Risk Factors.

JACC Cardiovasc Interv

June 2022

Clinical Trials Center, New York, New York, USA; Division of Cardiology, Memorial Sloan Kettering Cancer Center and Weill-Cornell College of Medicine, New York, New York, USA. Electronic address: https://twitter.com/IKosmidou.

Article Synopsis
  • A recent study found that about 50% of patients experiencing their first ST-segment elevation myocardial infarction (STEMI) without standard modifiable cardiovascular risk factors (SMuRFs) had excess early mortality compared to those with SMuRFs.
  • Researchers analyzed data from 10 clinical trials, comparing 2,862 STEMI patients, with 524 of them identified as SMuRF-less.
  • Results indicated that SMuRF-less patients were more likely to have poor blood flow before intervention, but there were no significant differences in infarct size, heart function, or 30-day and 1-year mortality rates between the two groups.
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Background: An upfront (primary) retrograde strategy is often used in complex chronic total occlusion (CTO) percutaneous coronary intervention (PCI).

Methods: We examined the clinical, angiographic characteristics, and procedural outcomes of CTO PCIs that were approached with a primary retrograde strategy in the Prospective Global Registry for the Study of CTO Intervention (PROGRESS-CTO, NCT02061436).

Results: Of 10,286 CTO PCIs performed between 2012 and 2022, a primary retrograde strategy was used in 1329 (13%) with an initial technical success of 66%, and a final success of 83%.

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Evolution and Prognostic Impact of Cardiac Damage After Aortic Valve Replacement.

J Am Coll Cardiol

August 2022

Clinical Trials Center, Cardiovascular Research Foundation, New York, New York, USA; St. Francis Hospital and Heart Center, Roslyn, New York, USA.

Background: The impact of aortic valve replacement (AVR) on progression/regression of extravalvular cardiac damage and its association with subsequent prognosis is unknown.

Objectives: The purpose of this study was to describe the evolution of cardiac damage post-AVR and its association with outcomes.

Methods: Patients undergoing transcatheter or surgical AVR from the PARTNER (Placement of Aortic Transcatheter Valves) 2 and 3 trials were pooled and classified by cardiac damage stage at baseline and 1 year (stage 0, no damage; stage 1, left ventricular damage; stage 2, left atrial or mitral valve damage; stage 3, pulmonary vasculature or tricuspid valve damage; and stage 4, right ventricular damage).

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Background: We aim to establish the degree of agreement related to gradient measurement during transcatheter aortic valve replacement (TAVR) between the OpSens OptoWire III and its new proprietary TAVR algorithm and hemodynamic value derived by catheterization and echocardiogram (transthoracic echocardiogram and transesophageal echocardiogram).

Methods: The current study was a prospective, single-arm, single-center study. All subjects underwent hemodynamic assessment before and after TAVR using standard hemodynamic assessment using 2 pigtails, transthoracic echocardiogram, transesophageal echocardiogram, and the OpSens OptoWire III.

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Article Synopsis
  • The study investigates balloon undilatable lesions in chronic total occlusion (CTO) percutaneous coronary intervention (PCI), an area that has not been thoroughly researched.
  • About 8.5% of CTO lesions are identified as balloon undilatable, with affected patients being older and having more comorbidities compared to other patients undergoing PCI.
  • Treatment for these lesions shows lower technical success rates and a higher risk of major adverse cardiovascular events (MACE) during hospitalization.*
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Radial Hemostasis Is Facilitated With a Potassium Ferrate Hemostatic Patch: The STAT2 Trial.

JACC Cardiovasc Interv

April 2022

University of California, Irvine, School of Medicine, Orange, California, USA; Division of Cardiology, Department of Medicine, Tibor Rubin VA Medical Center, Long Beach, California, USA. Electronic address:

Objectives: The aim of this trial was to test whether the potassium ferrate hemostatic patch (PFHP) as an adjunct to the TR Band (TRB) facilitated an early deflation protocol.

Background: Shorter TRB compression times may reduce the rate of radial artery occlusion (RAO) and reduce observation time after transradial access.

Methods: A total of 443 patients were randomized to the TRB or PFHP + TRB, with complete TRB deflation attempted 60 minutes postprocedure.

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Deep learning frameworks have been applied to interpretation of coronary CTA performed for coronary artery disease (CAD) evaluation. The purpose of our study was to compare the diagnostic performance of myocardial perfusion imaging (MPI) and coronary CTA with artificial intelligence quantitative CT (AI-QCT) interpretation for detection of obstructive CAD on invasive angiography and to assess the downstream impact of including coronary CTA with AI-QCT in diagnostic algorithms. This study entailed a retrospective post hoc analysis of the derivation cohort of the prospective 23-center Computed Tomographic Evaluation of Atherosclerotic Determinants of Myocardial Ischemia (CREDENCE) trial.

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Objectives: The purpose of this study was to compare the American Society of Echocardiography (ASE) algorithm for assessing mitral regurgitation (MR) to cardiac magnetic resonance (CMR) and left ventricular (LV) remodeling following mitral intervention.

Background: The ASE recommends integrating multiple echocardiographic parameters for assessing MR. The ASE guidelines include an algorithm that weighs the parameters and highlights those considered indicative of definitely mild or definitely severe MR.

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Background: Diabetes mellitus (DM) is an important predictor of neointimal hyperplasia (NIH) and adverse clinical outcomes after percutaneous coronary intervention (PCI). LABR-312, a novel intravenous formulation of liposomal alendronate, has been shown in animal models to decrease NIH at vascular injury sites and around stent struts. The aim of the Biorest Liposomal Alendronate Administration for Diabetic Patients Undergoing Drug-Eluting Stent Percutaneous Coronary Intervention trial was to assess the safety, effectiveness, and dose response of LABR-312 administered intravenously at the time of PCI withDES in reducing NIH as measured by optical coherence tomography postprocedure in patients with DM.

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Left Ventricular Global Longitudinal Strain in Patients with Moderate Aortic Stenosis.

J Am Soc Echocardiogr

August 2022

Department of Cardiology, Leiden University Medical Center, Leiden, the Netherlands; Turku Heart Center, University of Turku and Turku University Hospital, Turku, Finland. Electronic address:

Article Synopsis
  • The study investigates the prognostic significance of left ventricular global longitudinal strain (LV GLS) in patients with moderate aortic stenosis (AS), focusing on its relationship with all-cause mortality.
  • It involved analyzing data from 760 patients over a median follow-up of 50 months, revealing that lower LV GLS was linked to higher mortality rates compared to those with better LV GLS values, regardless of ejection fraction.
  • The findings suggest that LV GLS can identify higher-risk patients for adverse outcomes, even among those who are asymptomatic or have a preserved ejection fraction.
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Background: Severe coronary artery calcification has been associated with stent underexpansion, procedural complications, and increased rates of early and late adverse clinical events in patients undergoing percutaneous coronary intervention. To date, no lesion preparation strategy has been shown to definitively improve outcomes of percutaneous coronary intervention for calcified coronary artery lesions.

Study Design And Objectives: ECLIPSE (NCT03108456) is a prospective, randomized, multicenter trial designed to evaluate two different vessel preparation strategies in severely calcified coronary artery lesions.

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Background: Mechanical circulatory support (MCS) devices are increasingly used for hemodynamic support in cardiogenic shock or high-risk percutaneous coronary interventions. Vascular complications remain a major source of morbidity and mortality despite technological advances with percutaneous techniques. Little is known about the rates and predictors of vascular complications with large-bore access MCS in the contemporary era.

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Article Synopsis
  • The study aims to evaluate how various factors, including CCTA scanning techniques and patient characteristics, affect the performance of AI-based software in detecting significant coronary artery blockages (≥50% stenosis).
  • CCTA is a non-invasive imaging technique beneficial for diagnosing coronary artery disease. The effectiveness of AI-QCT software in improving diagnostic outcomes is being assessed through analysis of data collected from 303 stable patients.
  • The analysis includes measuring the software's sensitivity, specificity, and accuracy by comparing its results with established QCA measurements, while exploring the impact of different scanning and patient-related parameters on these diagnostics.
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Background: Clinical reads of coronary computed tomography angiography (CTA), especially by less experienced readers, may result in overestimation of coronary artery disease stenosis severity compared with expert interpretation. Artificial intelligence (AI)-based solutions applied to coronary CTA may overcome these limitations.

Objectives: This study compared the performance for detection and grading of coronary stenoses using artificial intelligence-enabled quantitative coronary computed tomography (AI-QCT) angiography analyses to core lab-interpreted coronary CTA, core lab quantitative coronary angiography (QCA), and invasive fractional flow reserve (FFR).

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Left ventricular remodelling patterns in patients with moderate aortic stenosis.

Eur Heart J Cardiovasc Imaging

September 2022

Department of Cardiology, Leiden University Medical Center, Albinusdreef 2, 2300 RC Leiden, The Netherlands.

Aims: Moderate aortic stenosis (AS) is associated with an increased risk of adverse events. Because outcomes in patients with AS are ultimately driven by the condition of the left ventricle (LV) and not by the valve, assessment of LV remodelling seems important for risk stratification. This study evaluated the association between different LV remodelling patterns and outcomes in patients with moderate AS.

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