Publications by authors named "Brunel P"

Background: Coronary chronic total occlusions (CTO) are frequent, and coronary angioplasty has been increasingly used in recent years for lesion revascularisation. However, to date, no dedicated multicentric prospective study is available in France.

Aim: To describe the characteristics of CTO patients and to assess current treatment strategies in French catheterisation laboratory practice.

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Study Objective: The aim of this study was to investigate the efficacy of a two-step patient blood management (PBM) program in red blood cell (RBC) transfusion requirements among patients undergoing elective cardiopulmonary bypass (CPB) surgery.

Design: Prospective, non-randomized, two-step protocol design.

Setting: Cardiac surgery department of Clinique Pasteur, Toulouse, France.

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Background: For high bleeding-risk patients (HBR) undergoing percutaneous coronary intervention (PCI), the LEADERS FREE (LF) and LEADERS FREE II (LF II) trials established the safety and efficacy of a stainless steel polymer-free biolimus-coated stent (SS-BCS) with 30 days of dual antiplatelet treatment (DAPT). The LEADERS FREE III (LF III) trial investigated clinical outcomes after PCI with the next-generation cobalt-chromium thin-strut polymer-free biolimus-coated stent (CoCr-BCS) in HBR patients.

Aims: To report the final 3-year results of the LF III trial and compare them to LF II.

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Background: In patients with distal bifurcation left main stem lesions requiring intervention, the European Bifurcation Club Left Main Coronary Stent Study trial found a non-significant difference in major adverse cardiac events (MACEs, composite of all-cause death, non-fatal myocardial infarction and target lesion revascularisation) favouring the stepwise provisional strategy, compared with the systematic dual stenting.

Aims: To estimate the 1-year cost-effectiveness of stepwise provisional versus systematic dual stenting strategies.

Methods: Costs in France and the UK, and MACE were calculated in both groups to estimate the incremental cost-effectiveness ratio (ICER).

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Background: The multicentre European Bifurcation Club Trial (EBC TWO) showed no significant differences in 12-month clinical outcomes between patients randomised to a provisional stenting strategy or systematic culotte stenting in non-left main true bifurcations.

Aims: This study aimed to investigate the 5-year clinical results of the EBC TWO Trial.

Methods: A total of 200 patients undergoing stent implantation for non-left main bifurcation lesions were recruited into EBC TWO.

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Background: The impact of intracoronary imaging on outcomes, after provisional versus dual-stenting for bifurcation left main (LM) lesions, is unknown.

Objectives: We investigated the effect of intracoronary imaging in the EBC MAIN trial (European Bifurcation Club LM Coronary Stent study).

Methods: Four hundred and sixty-seven patients were randomized to dual-stenting or a stepwise provisional strategy.

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Background: Techniques for provisional and dual-stent left main bifurcation stenting require optimization.

Aim: To identify technical variables influencing procedural outcomes and periprocedural myocardial infarction following left main bifurcation intervention.

Methods: Procedural and outcome data were analyzed in 438 patients from the per-protocol cohort of the European Bifurcation Club Left Main Trial (EBC MAIN).

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Article Synopsis
  • A study was conducted to evaluate the effectiveness of the polymer-free biolimus coated stent (BioFreedom) in a diverse patient population undergoing coronary interventions, specifically focusing on those with high bleeding risk (HBR) versus non-HBR patients.
  • The study included 1497 patients and measured the incidence of target lesion failure (TLF) as its primary outcome, finding a higher occurrence of TLF in HBR patients (9.2%) compared to non-HBR patients (5.8%).
  • Results indicated that HBR patients faced greater risks of cardiac death and target vessel myocardial infarction, while also experiencing higher bleeding rates, confirming the need for careful patient management in this high-risk group.
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Background: In patients at high bleeding risk (HBR), the LEADERS FREE (LF) trial established the safety and efficacy of a polymer-free drug coated (Biolimus-A9) stainless steel stent (SS-DCS) with 30 days of dual antiplatelet treatment (DAPT). In LEADERS FREE III, we studied a new cobalt-chromium thin-strut stent (CoCr-DCS) in HBR patients.

Methods: The CoCr-DCS shares all of the design features of the SS-DCS but has a CoCr stent platform with strut thickness of 84-88 μm.

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Article Synopsis
  • The study analyzed 467 patients with true left main stem bifurcation lesions and compared two treatment strategies: a stepwise provisional approach and systematic dual stenting.
  • Results showed a slightly lower rate of major adverse cardiac events in the stepwise approach (14.7%) compared to dual stenting (17.7%), but the difference wasn't statistically significant.
  • Overall, the stepwise provisional strategy resulted in better procedure efficiency and similar symptomatic improvement, suggesting it should remain the preferred method for these patients.
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Background: Although patients with familial heterozygous hypercholesterolemia (FH) have a high risk of early myocardial infarction (MI), the coronary artery disease (CAD) burden in FH patients with acute MI remains to be investigated.

Methods: The data for all consecutive patients hospitalized in 2012-2019 for an acute MI and who underwent coronary angiography were collected from a multicenter database (RICO database). FH (n = 120) was diagnosed using Dutch Lipid Clinic Network criteria (score ≥ 6).

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Article Synopsis
  • The ALPHEUS study aimed to determine if ticagrelor is more effective than clopidogrel in reducing heart muscle injury during elective PCI in stable coronary patients.
  • Conducted across 49 hospitals in France and the Czech Republic, it involved 1910 participants who were randomly assigned to receive either ticagrelor or clopidogrel before the procedure.
  • Results showed no significant difference in the primary endpoint of myocardial injury between the two groups, with about 35% in the ticagrelor group and 36% in the clopidogrel group affected, indicating ticagrelor did not outperform clopidogrel in this context.
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Unlabelled: Anaemia and iron deficiency are frequent in patients scheduled for cardiac surgery. Perioperative patient blood management (PBM) is widely recommended in current practice guidelines. The aim of this protocol is to analyse the effect of a global perioperative PBM programme on the red blood cell (RBC) transfusion ratio, morbidities and rehabilitation score in elective cardiac surgery.

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Article Synopsis
  • Clopidogrel combined with aspirin is the standard treatment for patients undergoing elective PCI, but complications like myocardial infarction can occur.
  • Evidence supports the potential benefits of using ticagrelor, a type of P2Y receptor inhibitor, which may help reduce ischemic complications while maintaining a similar safety profile to clopidogrel.
  • The ALPHEUS trial will compare the effects of ticagrelor and clopidogrel on patients undergoing elective PCI, focusing on reducing myocardial injury and evaluating major bleeding risks.
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Article Synopsis
  • Acute infections are common triggers for myocardial infarction (MI), but it's unclear if percutaneous coronary intervention (PCI) improves outcomes for those with post-infectious MI.
  • In a study involving 4,573 MI patients, 476 had acute infections, and among those with significant coronary stenosis, only 195 received PCI.
  • After analyzing the data, researchers found no significant differences in in-hospital or one-year mortality rates between patients who received PCI and those who did not, suggesting that PCI may not enhance prognosis in these cases.
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Aims: To evaluate long-term safety and efficacy of ticagrelor monotherapy in patients undergoing percutaneous coronary interventions (PCIs) in relation to chronic obstructive pulmonary disease (COPD) at baseline and the occurrence of dyspnoea reported as adverse event (AE) that may lead to treatment non-adherence.

Methods And Results: This is a non-prespecified, post hoc analysis of the randomized GLOBAL LEADERS trial (n = 15 991), comparing the experimental strategy of 23-month ticagrelor monotherapy following 1-month dual antiplatelet therapy (DAPT) after PCI with the reference strategy of 12-month DAPT followed by 12-month aspirin monotherapy. Impact of COPD and dyspnoea AE (as a time-dependent covariate) on clinical outcomes was evaluated up to 2 years.

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This article describes the chemical synthesis, ADME and pharmacological properties and early safety pharmacology evaluation of a series of novel Nurr1/NOT agonist. It is meant as a support to an article recently published in Bioorganic and Medicinal chemistry Letters and entitled "Development of a novel NURR1/NOT agonist from hit to lead and candidate for the potential treatment of Parkinson's disease" [1] and presenting the discovery, scope and potential of these new ligands of these nuclear receptors.

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Introduction And Objectives: The prognostic impact of bleeding in high bleeding risk (HBR) patients depending on the location of bleeding and prognosis in nonaccess site bleeding is unknown. We aimed to assess the impact of vascular access site on bleeding complications after percutaneous coronary interventions for HBR patients at 30-day and 2-year follow-up.

Methods: The LEADERS FREE trial included 2432 HBR PCI patients.

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Angiotensin receptor blockers (ARB) are among the recommended first-line treatment options in patients with hypertension and chronic kidney disease (CKD). This meta-analysis evaluated the effect of ARB on blood pressure (BP) and renal function in patients with concomitant hypertension and CKD with or without diabetes. Literature search was performed in PubMed/MEDLINE, EMBASE and BIOSIS to identify parallel-group, randomized controlled trials (≥8 weeks) reporting the effects of ARB on office systolic/diastolic BP (SBP/DBP), estimated glomerular filtration rate (eGFR), serum creatinine (SCr), creatinine clearance (CrCl) or proteinuria in adults with hypertension and CKD.

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Article Synopsis
  • This study investigates the prevalence and severity of familial hypercholesterolemia (FH) among French patients hospitalized for acute myocardial infarction (MI) over a 16-year period.
  • Among 11,624 patients, 2.1% were diagnosed with "probable/definite" FH, who were notably younger and had different health profiles compared to those with "unlikely" FH.
  • Findings revealed that patients with FH experienced more extensive and severe coronary artery disease, in addition to highlighting the low usage rates of preventive lipid-lowering treatments like statins and ezetimibe.
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A new unsymmetrical indene-based pro-ligand featuring thiophosphinoyle and methylpyridine sidearms 2 was prepared. Coordination and cyclometalation in the presence of [PdCl2(PhCN)2] and PS-DIEA afforded three well-defined 2-indenyl SCN pincer complexes 3a-c. The lability of the pyridine moiety has been evidenced upon treatment with triphenylphosphine and 2,6-dimethylphenylisocyanide.

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In the course of a programme aimed at identifying Nurr1/NOT agonists for potential treatment of Parkinson's disease, a few hits from high throughput screening were identified and characterized. A combined optimization pointed to a very narrow and stringent structure activity relationship. A comprehensive program of optimization led to a potent and safe candidate drug displaying neuroprotective and anti-inflammatory activity in several in vitro and in vivo models.

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Background: Anti-amyloid β (Aβ) immunotherapy represents a major area of drug development for Alzheimer's disease (AD). However, Aβ peptide adopts multiple conformations and the pathological forms to be specifically targeted have not been identified. Aβ immunotherapy-related vasogenic edema has also been severely dose limiting for antibodies with effector functions binding vascular amyloid such as bapineuzumab.

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Background: Drug de-escalation is considered in Crohn's disease patients in sustained remission on optimized infliximab treatment.

Aim: We built a model to evaluate the magnitude of cost savings in patients' disease course with or without drug de-escalation guided by infliximab trough levels.

Methods: We designed 4 virtual cohorts (P1-P4) of 10,000 patients in clinical remission on optimized infliximab treatment followed for 2 years.

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