Publications by authors named "Robert DeLarochelliere"

Background: A blood multimarker approach may be useful to enhance risk stratification in patients undergoing TAVI.

Objectives: The objective of this study was to determine the prognostic value of multiple blood biomarkers in transcatheter aortic valve implantation (TAVI) patients.

Methods: In this prospective study, several blood biomarkers of cardiovascular function, inflammation, and renal function were measured in 362 patients who underwent TAVI.

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Background: The updated Valve Academic Research Consortium (VARC) definition for bleeding events after transcatheter aortic valve replacement (TAVR) lacks of clinical validation.

Objectives: The aim of this study was to determine the incidence, predictors, and clinical impact of bleeding events following TAVR as defined by recent VARC-3 criteria.

Methods: A total of 2,384 consecutive patients with severe symptomatic aortic stenosis undergoing TAVR were included.

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Background: The long-term outcomes of patients undergoing functional assessment of coronary lesions with fractional flow reserve (FFR) while awaiting transcatheter aortic valve implantation (TAVI) are unknown. Data on the safety of intracoronary adenosine use in this setting are scarce. The objectives of this study were to describe (1) the long-term outcomes based on the coronary artery disease (CAD) assessment strategy used and (2) the safety of intracoronary adenosine in patients with severe aortic stenosis (AS).

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Article Synopsis
  • Transcatheter valve-in-valve replacement (ViV-TAVR) is compared to redo-surgical aortic valve replacement (Redo-SAVR) for patients with failed aortic bioprostheses, focusing on their hemodynamic and clinical outcomes.
  • The study analyzed data from 184 patients, showing that ViV-TAVR had a significantly lower success rate in achieving optimal hemodynamic results shortly after the procedure compared to Redo-SAVR.
  • Long-term results indicated that Redo-SAVR had notably lower mortality rates over 8 years, despite a transiently higher 30-day mortality rate when compared to ViV-TAVR.
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Background: The Valve Academic Research Consortium (VARC)-3 definition for myocardial injury after transcatheter aortic valve replacement (TAVR) lacks of clinical validation.

Objectives: This study sought to determine the incidence, predictors, and clinical impact of periprocedural myocardial injury (PPMI) following TAVR as defined by recent VARC-3 criteria.

Methods: We included 1,394 consecutive patients who underwent TAVR with a new-generation transcatheter heart valve.

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Introduction And Objectives: To evaluate the prevalence, clinical characteristics, and outcomes of patients with angina undergoing transcatheter aortic valve replacement (TAVR) for severe aortic stenosis.

Methods: A total of 1687 consecutive patients with severe aortic stenosis undergoing TAVR at our center were included and classified according to patient-reported angina symptoms prior to the TAVR procedure. Baseline, procedural and follow-up data were collected in a dedicated database.

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Introduction: Since the initial experience with the CoreValve (Medtronic, Minneapolis, Minnesota), there have been continuous iterations of this valve system in order to improve procedural success and reduce periprocedural complications. The Evolut Pro, Pro+, and FX are the latest generations of this transcatheter heart valve (THV).

Areas Covered: This review paper aims to analyze the main characteristics and clinical evidence about the Evolut Pro THV and summarize the main iterations of the newer generation Evolut FX valve system.

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Background: High (≥20 mmHg) postprocedural mean transvalvular gradients are relatively common among valve-in-valve (ViV) transcatheter aortic valve replacement (TAVR) recipients, but its clinical impact remains controversial.

Methods: Observational study including 190 consecutive ViV-TAVR recipients. Patients were classified according to the presence of high (≥20 mmHg) or low (<20 mmHg) residual mean transvalvular gradient on post-procedural echocardiography.

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Background: Transcarotid (TC) is a common alternative access for transcatheter aortic valve replacement (TAVR) when the transfemoral route is not suitable. However, scarce data exist on systematic ultrasound (US) follow-up of these patients. This study aims to evaluate the safety of TC-TAVR using pre-and post-procedure carotid artery US assessment.

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Objectives: Unplanned hospital readmissions after transcatheter aortic valve replacement (TAVR) are frequent and have been associated with a poor prognosis. We sought to determine the trends in the incidence and causes of unplanned hospital readmission after TAVR in patients receiving new-generation devices (NGDs) vs early-generation devices (EGDs).

Methods: The study population consisted of 1802 consecutive TAVR recipients (863 EGDs and 939 NGDs).

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Background: No data exist about cranial nerve injury (CNI) as a potential complication of transcarotid (TC) transcatheter valve replacement (TAVR).

Methods: This monocentric study included 318 consecutive patients undergoing TC-TAVR from May 2015 to August 2021.

Results: CNI occurred in 7 (2.

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Few data exist on late vascular complications (VCs) after transfemoral (TF) transcatheter aortic valve implantation (TAVI). The objective of this study was to evaluate the incidence and predictors of late access site VC after TF TAVI. A total of 128 patients (mean age: 80 ± 8 years, women: 52%) who underwent TF TAVI without major VC were included.

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Background: Sutureless-surgical aortic valve replacement (SU-SAVR) has been proposed as a surgical alternative for treating aortic stenosis, which facilitates a minimally invasive approach. While some studies have compared the early outcomes of SU-SAVR versus transcatheter aortic valve replacement (TAVR), most data were obtained in high-risk patients and/or limited to in-hospital outcomes. This study aimed to compare in-hospital and midterm clinical outcomes following SU-SAVR and TAVR in low-risk patients with aortic stenosis.

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Background: Outcomes of transcatheter aortic valve replacement (TAVR) in patients with high-gradient (HG) severe aortic stenosis (AS) and reduced left-ventricular (LV) ejection fraction (EF) are unknown.

Methods: Patients undergoing TAVR for native severe AS between 2009 and 2018 were retrospectively included and classified into 3 groups: HG (≥ 40 mm Hg) and preserved EF (≥ 50%), HG low EF (< 50%), and low gradient (LG < 40 mm Hg) low EF. The primary endpoint was a composite of cardiovascular mortality and readmission for heart failure at 1 year after TAVR.

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Background Some concerns remain regarding the safety of transcarotid and transsubclavian approaches for transcatheter aortic valve replacement. We aimed to compare the risk of 30-day complications and death in transcarotid/transsubclavian versus transfemoral transcatheter aortic valve replacement recipients. Methods and Results Data from 20 studies, including 79 426 patients (16 studies) and 3992 patients (4 studies) for the evaluation of the unadjusted and adjusted impact of the arterial approach were sourced, respectively.

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Background: The impact of novel alternative access and valve type on radiation exposure during transcatheter aortic valve replacement (TAVR) has not yet been evaluated. This study sought to determine the impact of a transarterial approach and prosthesis type on physician and patient exposure to radiation during TAVR.

Methods: This was a prospective study including 140 consecutive patients undergoing TAVR by transfemoral (n = 102) or transcarotid (TC) (n = 38) access at 2 centers.

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Aims: This study sought to determine the timing and evolution over time of advanced conduction disturbances (CDs) in patients with baseline right bundle branch block (RBBB) undergoing transcatheter aortic valve replacement (TAVR).

Methods And Results: One hundred and ten consecutive patients with pre-existing RBBB were included (out of 1341, 8.2%).

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Background: Transcarotid transcatheter aortic valve replacement (TAVR) recipients may be exposed to a higher ipsilateral subclinical cerebral ischemic burden compared with the contralateral hemisphere. We sought (1) to compare the cerebral ischemic burden of the 2 hemispheres after transcarotid TAVR, as evaluated by diffusion weighted-magnetic resonance imaging (DW-MRI), and (2) to identify the factors associated with ipsilateral ischemic burden.

Methods: This prospective study included 52 patients undergoing transcarotid TAVR, followed by a DW-MRI examination.

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Objectives: This study sought to determine, using continuous electrocardiographic monitoring (CEM) pre-transcatheter aortic valve replacement (TAVR), the incidence and type of unknown pre-existing arrhythmic events (AEs) in TAVR candidates, and to evaluate the occurrence and impact of therapeutic changes secondary to the detection of AEs pre-TAVR.

Background: Scarce data exist on the arrhythmic burden of TAVR candidates (pre-procedure).

Methods: This was a prospective study including 106 patients with severe aortic stenosis and no prior permanent pacemaker screened for TAVR.

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Objectives: We sought to evaluate the position of balloon-expandable valves in relation to the coronary ostia using an angiographic- and computed tomography (CT)-based analysis, and to determine the impact of valve position on coronary angiography (CA)/percutaneous coronary intervention (PCI) feasibility and results.

Methods: A total of 533 patients who received a Sapien XT or Sapien 3 valve were included in the angiographic analysis. Of these, 49 benefited from an opportunistic electrocardiography-gated CT after transcatheter aortic valve replacement (TAVR) and were included in the CT analysis.

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Objectives: The femoral artery is the preferred vascular access to perform transcatheter aortic valve replacement (TAVR). However, the optimal alternative approach has not been elucidated in patients who are not candidates for a transfemoral (TF) access. The objective of this study was to compare the outcomes of TAVR performed by the transcarotid (TC) compared with the TF approach.

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Introduction And Objectives: We assessed the long-term hemodynamic performance of transcatheter heart valve (THV) by paired transthoracic echocardiography (TTE), and the incidence, characteristics and factors associated with THV structural valve degeneration (SVD).

Methods: A total of 212 patients who underwent transcatheter aortic valve replacement and had a potential follow-up >5 years with at least 1 TTE ≥ 1-year postprocedure were included. All patients had a TTE at 1 to 5 years and 36 had another one at 6 to 10 years.

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Objectives: We sought to assess the position of the CoreValve Evolut R/Pro (Medtronic) with respect to the left coronary artery (LCA) ostium and evaluate the impact of implantation depth on this relationship.

Methods: One hundred consecutive patients who received an Evolut R/Pro valve and had an adequate angiography following valve implantation were included. Angiographic measurements included valve implantation depth, the position of the Evolut R/Pro with respect to the LCA, and the distance between the neo-valve cusp and the LCA ostium.

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This study aimed to compare the hemodynamic performance of transcatheter and surgical aortic valves in patients with severe symptomatic aortic stenosis and small aortic annulus (SAA) and to determine the valve hemodynamics according to transcatheter valve type. Consecutive surgical aortic valve replacement (SAVR) and transcatheter aortic valve replacement (TAVR) patients with SAA were case-matched (1:1) on the basis of sex, body surface area, aortic annulus diameter, and left ventricular ejection fraction. A total of 357 patients in each group constituted the final study population.

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