Publications by authors named "Wyffels E"

Article Synopsis
  • The study examines gender differences in the relationship between angiographic findings and fractional flow reserve (FFR) in patients with coronary stenosis.
  • Median FFR values were found to be higher in female patients than in male patients, and a 50% diameter stenosis (DS) is identified as the best threshold for detecting ischemic FFR in both genders.
  • While a higher DS threshold (≥ 59%) improves lesion classification in females, it also results in a higher rate of false negatives.
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Article Synopsis
  • Robotic-assisted coronary interventions (R-PCI) have shown safety and effectiveness in treating various coronary lesions, but their real-world clinical outcomes remain unclear.
  • A study evaluated 111 patients to assess major adverse cardiovascular events (MACE) and found a low occurrence of 5.4% during a median follow-up period.
  • The research indicated that while procedural complexity increased time and radiation exposure, it did not impact in-hospital or long-term outcomes, and CCTA-guided procedures allowed for a higher rate of same-day discharge (64.6% vs. 44.2%).
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This analysis of real-world data examines the efficacy, safety, and long-term outcomes of renal denervation in hypertensive patients for up to 10 years. Sixty-five consecutive patients underwent renal denervation (RDN) (single operator) for uncontrolled resistant hypertension. Efficacy was defined as the interindividual change of office (OBPM) and ambulatory blood pressure monitoring (ABPM) at 1, 6, 12 months, 2-4 and 5-10 years after RDN.

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Background: Discrepancies between stenosis severity assessed at coronary computed tomography angiography (CCTA) and ischemia might depend on vessel type. Coronary plaque features are associated with ischemia. Thus, we evaluated the vessel-specific correlation of CCTA-derived diameter stenosis (DS) and invasive fractional flow reserve (FFR) and explored whether integrating morphological plaque features stratified by vessel might increase the predictive yield in identifying vessel-specific ischemia.

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Article Synopsis
  • Severe aortic stenosis (AS) leads to changes in the heart’s left ventricle and can affect blood flow and resistance in coronary arteries.
  • A study assessed coronary blood flow and microvascular resistance in AS patients before and after transcatheter aortic valve implantation (TAVI) and found no immediate changes right after the procedure.
  • Six months post-TAVI, patients showed significant improvement in hyperaemic perfusion, indicating that over time, left ventricular remodelling positively affected blood flow during increased demand.
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Background: Approximately one-half of the patients with angina and nonobstructive coronary artery disease (ANOCA) have evidence of coronary microvascular dysfunction (CMD).

Objectives: This study aims to characterize patients with ANOCA by measuring their minimal microvascular resistance and to examine the pattern of vascular remodeling associated with these measurements.

Methods: The authors prospectively included patients with ANOCA undergoing continuous thermodilution assessment.

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Background: Transcatheter aortic valve replacement(TAVR) has shown clear survival benefits in severe aortic valve stenosis(AS). However, patients unable to recover left ventricle function remain at risk with poor long-term survival. This single-center prospective study aims to analyze the supplementary benefits of myocardial work(MW) assessment for baseline risk stratification in patients with severe AS referred for TAVR.

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Article Synopsis
  • - TAVI with the SAPIEN 3 device has demonstrated significant clinical advantages over traditional surgical aortic valve replacement (SAVR) for low-risk patients, as shown by the PARTNER 3 trial.
  • - The cost-utility analysis, tailored for Belgium, found that TAVI could lead to savings of €3,013 per patient, despite higher initial costs due to reduced follow-up expenses like rehabilitation and rehospitalization.
  • - Overall, the findings suggest that TAVI offers a beneficial and cost-effective alternative for low-risk patients with severe symptomatic aortic stenosis in Belgium, outpacing SAVR in both quality of life and financial outcomes.
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Background: To identify anatomical and morphological plaque features predictors of PCI and create a multiparametric score to increase the predictive yield. Moreover, we assessed the incremental predictive value of FFR (Fractional Flow Reserve derived from CCTA) trans-lesion gradient (ΔFFR) when integrated into the score.

Methods: Observational cohort study including patients undergoing CCTA for suspected coronary artery disease, with FFR available, referred to invasive coronary angiogram and assessment of fractional flow reserve.

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Since the first robotic-assisted percutaneous coronary intervention procedure (R-PCI) was performed in 2004, there has been a steady evolution in robotic technology, combined with a growth in the number of robotic installations worldwide and operator experience. This review summarises the latest developments in R-PCI with a focus on developments in robotic technology, procedural complexity, tele-stenting and training methods, which have all contributed to the global expansion in R-PCI.

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Article Synopsis
  • The study aimed to compare two methods (continuous and bolus thermodilution) for measuring coronary flow reserve (CFR) and microvascular resistance reserve (MRR) in patients with chest pain and nonobstructive coronary artery disease.
  • Results indicated that mean CFR and MRR values were significantly higher when measured using continuous thermodilution compared to bolus thermodilution, with continuous allowing for greater precision and lower variability in the results.
  • The correlation between CFR and MRR values from both methods was significant but weak, suggesting that while both methods provide useful information, continuous thermodilution is generally more reliable for assessments.
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Background: Cardiac damage (CD) staging enhances risk stratification in patients with clinically significant aortic stenosis (AS). We aimed to assess the prognostic value and reclassification rate of right heart catheterization (RHC) compared with transthoracic echocardiography (TTE) in characterising CD staging at 3-year follow-up in patients with clinically significant AS, to identify patients that would benefit from RHC for prognostic stratification, and to test the prognostic value of combined CD staging.

Methods: An observational cohort study of 432 AS patients undergoing TTE and RHC were divided into moderate or asymptomatic severe (m/asAS) and symptomatic severe (ssAS) AS.

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Background: Low fractional flow reserve (FFR) after percutaneous coronary intervention (PCI) has been associated with adverse clinical outcomes. Hitherto, this assessment has been independent of the epicardial vessel interrogated.

Objectives: This study sought to assess the predictive capacity of post-PCI FFR for target vessel failure (TVF) stratified by coronary artery.

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Aims: To assess the effects on outcomes and hospital revenues (societal cost) of a by default strategy of same day discharge (SDD) in patients undergoing a cardiac catheterization procedure in a Belgian Hospital.

Methods And Results: Outcome and complete financial data were obtained in all consecutive patients with a cardiac catheterization performed in 2019 (n=5237) and in 2021 (n=5377). Patient-reported experience, patient satisfaction and Net promotor score were obtained prospectively for the SDD cohort in 2021.

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Background: A bolus thermodilution-derived index of microcirculatory resistance (IMR) has emerged as the standard for assessing coronary microvascular dysfunction (CMD). Continuous thermodilution has recently been introduced as a tool to quantify absolute coronary flow and microvascular resistance directly. Microvascular resistance reserve (MRR) derived from continuous thermodilution has been proposed as a novel metric of microvascular function, which is independent of epicardial stenoses and myocardial mass.

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Background: Heart valve clinics (HVC) have been introduced to manage patients with valvular heart disease within a multidisciplinary team.

Objective: To determine the outcome benefit of HVC approach compared with standard of care (SOC) for patients with moderate and asymptomatic severe aortic stenosis (mAS and asAS).

Methods: Single-centre, observational registry of patients with mAS and asAS with at least one cardiac ambulatory consultation at our Cardiovascular Centre.

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Article Synopsis
  • - This text discusses the first report of using robotic assistance for renal denervation procedures.
  • - Robotic-assisted renal denervation is a new development in minimally invasive medical interventions.
  • - The use of robotics enhances precision during the procedure and reduces radiation exposure for both patients and medical staff.
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Background: Endomyocardial biopsy (EMB) facilitates a histopathologic diagnosis with unique prognostic and therapeutic implications in both native and donor hearts. It is a relatively safe procedure, with an overall complication rate ranging from <1% to 6% depending on the experience of the operator, the clinical status of the patient, the presence or absence of left bundle branch block, the access site, and the site of procurement (right ventricular [RV] vs left ventricular [LV] approach).

Objectives: This study aimed to assess the incidence of procedure-related complications in a real-world population.

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Article Synopsis
  • Cardiac stress tests are crucial for diagnosing obstructive coronary artery disease (CAD), but can be misleading due to coronary microvascular dysfunction (CMD).
  • A study evaluated the effectiveness of exercise stress tests by comparing results with invasive measures of epicardial and microvascular resistance in CAD patients.
  • Findings showed that incorporating these invasive assessments significantly reduced false positives in exercise stress tests, enhancing their diagnostic accuracy.
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Background Deferring revascularization in patients with nonsignificant stenoses based on fractional flow reserve (FFR) is associated with favorable clinical outcomes up to 15 years. Whether this holds true in patients with reduced left ventricular ejection fraction is unclear. We aimed to investigate whether FFR provides adjunctive clinical benefit compared with coronary angiography in deferring revascularization of patients with intermediate coronary stenoses and reduced left ventricular ejection fraction.

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A 62-year-old man presents to the Cardiology Department with a history of angina on exertion. Invasive coronary angiography revealed a severe three vessels coronary artery disease. The "Hybrid Heart Team" successfully performed a fully robotically assisted hybrid revascularization combining robotically enhanced-minimally invasive direct coronary artery bypass on the left anterior descending (LAD) and robotically assisted percutaneous coronary intervention on non-LAD lesions.

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Coronary artery disease (CAD) continues to be the leading cause of mortality and morbidity in developed countries. Assessment of pre-test probability (PTP) based on patient's characteristics, gender and symptoms, help to identify more accurate patient's clinical likelihood of coronary artery disease. Consequently, non-invasive imaging tests are performed more appropriately to rule in or rule out CAD rather than invasive coronary angiography (ICA).

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Coronary microvascular dysfunction (CMD) is an early feature of diabetic cardiomyopathy, which usually precedes the onset of diastolic and systolic dysfunction. Continuous intracoronary thermodilution allows an accurate and reproducible assessment of absolute coronary blood flow and microvascular resistance thus allowing the evaluation of coronary flow reserve (CFR) and Microvascular Resistance Reserve (MRR), a novel index specific for microvascular function, which is independent from the myocardial mass. In the present study we compared absolute coronary flow and resistance, CFR and MRR assessed by continuous intracoronary thermodilution in diabetic vs.

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