Publications by authors named "Alessandro Beneduce"

The increasing use of microaxial flow pumps (mAFP) underpins the need for a comprehensive approach to manage critically ill patients in an effort to maximize the benefits of this temporary mechanical circulatory support (tMCS) while minimizing its potential complications. Multimodality cardiac imaging offers an irreplaceable array of tools to address device position, device-heart hemodynamic interaction, myocardial recovery assessment, and identification of complications. This review provides a comprehensive and pragmatic summary of the cardiovascular imaging modalities currently available throughout the pathway of care of mAFP-supported patients, from device insertion, to intensive cardiac care hemodynamic monitoring, weaning guidance, and myocardial recovery assessment.

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The aim of this study was to assess the impact of left ventricular outflow (LVOT) calcification on early device outcomes in a contemporary patient cohort with bicuspid aortic valve undergoing transcatheter aortic valve implantation (TAVI), and to compare outcomes between balloon-expandable (BE) and self-expandable (SE) prostheses in this population. LVOT calcification is known to be associated with adverse outcomes after TAVI in patient with tricuspid anatomy. However, its impact on patients with bicuspid anatomy remains less explored.

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Background: Severe tricuspid regurgitation (TR) is associated with significant morbidity and mortality but remains markedly undertreated. Optimal management strategies and the timing of intervention are still unclear.

Methods: We retrospectively analysed 476 patients with isolated symptomatic severe TR treated at our heart valve centre from 2018 to 2023.

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Background: Transcatheter patent foramen ovale (PFO) closure has become the gold-standard treatment for patients with cryptogenic embolism and PFO, but long-term outcomes data are limited.

Objectives: The aim of this study was to report the extended clinical outcomes of patients who underwent transcatheter PFO closure for cryptogenic embolism.

Methods: PROLONG (PFO Transcatheter Occlusion Long-Term Outcomes National Group) is an investigator-initiated, multicenter, retrospective registry that enrolled patients who underwent transcatheter PFO closure between 1999 and 2013 at 12 centers in Italy.

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Background: Coronary obstruction (CO) is a major concern in redo-transcatheter aortic valve implantation (TAVI) for failing supra-annular self-expanding transcatheter aortic valves (TAVs).

Aims: This ex vivo study tested chimney stenting (ChS) for redo-TAVI in patients with high-risk anatomy for CO by evaluating stent outcomes and the feasibility of subsequent coronary access (CA) for percutaneous coronary intervention (PCI).

Methods: Patient-specific anatomical models were three-dimensionally printed from pre-TAVI computed tomography (CT) scans.

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Moderate or severe aortic insufficiency (AI) is a relatively rare condition but with significant clinical implications, especially in elderly patients at high surgical risk. Although surgical aortic valve replacement remains the gold standard for treatment, a significant proportion of patients are not eligible due to the high surgical risk. In recent years, transcatheter aortic valve implantation (TAVI) has revolutionized the treatment of aortic stenosis, but its application to AI has encountered significant challenges, mainly related to specific anatomical characteristics of this population.

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Background: Spontaneous coronary artery dissection (SCAD) is an uncommon cause of acute myocardial infarction (MI) and is associated with substantial adverse events. SCAD involving the left main coronary artery (LM) is a rare but potentially life-threatening condition. Currently, minimal data on LM SCAD have been reported.

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Over the past few years, transcatheter aortic valve implantation (TAVI) imposed itself as the first-choice therapy for symptomatic aortic stenosis (AS) in elderly patients at surgical risk. There have been continuous technological advancements in the latest iterations of TAVI devices and implantation techniques, which have bolstered their adoption. Moreover, the favorable outcomes coming out from clinical trials represent an indisputable point of strength for TAVI.

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Article Synopsis
  • The study focused on the effects of Impella malrotation on patients in cardiogenic shock, identifying the malrotation in 36% of cases.
  • Findings indicated that those with malrotation experienced significantly worse pulmonary pressures, higher right atrial pressure, and elevated serum lactate levels compared to those without malrotation.
  • The conclusions suggest that Impella malrotation leads to suboptimal left ventricular unloading and aggravated pulmonary and right ventricular conditions, though major adverse outcomes did not significantly differ.
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  • Patients with a heart condition called atrial fibrillation (AF) who have strokes can still be at very high risk of having more strokes, even when taking medication to prevent them.
  • Left atrial appendage occlusion (LAAO) is a special procedure aimed at helping these patients avoid future strokes.
  • A study compared two groups – one that had LAAO and one that only continued their usual medication – and found that there was still a risk of strokes in both groups over a two-year period.
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  • Acute myocardial infarction can happen in young patients, particularly those with certain health conditions, although it is uncommon.* -
  • The case discussed involves a teenager with neurofibromatosis type 1 who experienced acute coronary syndrome due to artery complications.* -
  • The treatment approach for this case was a stent-sparing strategy, which is still a topic of debate in medical circles.*
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  • Coronary access (CA) and percutaneous coronary intervention (PCI) can be more difficult after valve-in-valve transcatheter aortic valve replacement (ViV-TAVR), especially with certain valve designs.* -
  • A study found that the ACURATE neo2 valve led to significantly better success rates for both CA (96.7%) and PCI (98.3%) compared to the Evolut PRO+ valve (75% and 85%, respectively).* -
  • The design differences between the valves affected procedural approaches, with ACURATE neo2 allowing for easier access due to a greater valve-to-anatomy distance.*
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Background: Coronary access (CA) is a major concern in redo-transcatheter aortic valve implantation (TAVI) for failing supra-annular self-expanding transcatheter aortic valves (TAVs).

Aims: This ex vivo study evaluated the benefit of leaflet splitting (LS) on subsequent CA after redo-TAVI in anatomies deemed at high risk of unfeasible CA.

Methods: Ex vivo, patient-specific models were printed three-dimensionally.

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  • Left atrial appendage occlusion (LAAO) is a treatment for patients with atrial fibrillation (AF) who can't use oral anticoagulation therapy (OAT) and those who face recurring thrombotic events despite OAT.
  • This study compared the efficacy of LAAO in patients experiencing thrombotic events while on OAT against those who had contraindications for OAT, using data from a large registry and propensity score matching for accuracy.
  • Results showed no significant difference in ischemic stroke rates between the two groups, but the LAAO patients on OAT had a higher thromboembolic risk but lower bleeding risk, suggesting LAAO is a viable option for these patients.
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  • Bicuspid aortic valve (BAV) stenosis poses challenges for transcatheter aortic valve implantation (TAVI), with positive short-term results but limited long-term data available.
  • A study analyzed 150 patients who underwent TAVI comparing self-expanding valves (SEV) and balloon-expandable valves (BEV), looking at outcomes like mortality, stroke, and the need for valve reintervention over three years.
  • Results showed no significant differences in primary or secondary outcomes between SEV and BEV groups, indicating similar long-term clinical effectiveness for both valve types in BAV patients.
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Monitoring of the patient supported with a temporary mechanical circulatory support (tMCS) is crucial in achieving the best possible outcome. Monitoring is a continuous and labour-intensive process, as cardiogenic shock (CS) patients can rapidly deteriorate and may require new interventions within a short time period. Echocardiography and invasive haemodynamic monitoring form the cornerstone of successful tMCS support.

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Aims: Central to the practice of precision medicine in percutaneous coronary intervention (PCI) is a risk-stratification tool to predict outcomes following the procedure. This study is intended to assess machine learning (ML)-based risk models to predict clinically relevant outcomes in PCI and to support individualized clinical decision-making in this setting.

Methods And Results: Five different ML models [gradient boosting classifier (GBC), linear discrimination analysis, Naïve Bayes, logistic regression, and K-nearest neighbours algorithm) for the prediction of 1-year target lesion failure (TLF) were trained on an extensive data set of 35 389 patients undergoing PCI and enrolled in the global, all-comers e-ULTIMASTER registry.

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Bicuspid aortic valve (BAV) is the most common congenital heart disease, with a prevalence of 1-2% and occurring in >20% of octogenarians referred for aortic valve replacement. However, BAV patients have been systematically excluded from pivotal randomized trials. Since TAVI indications are moving toward low-risk patients, an increase in the number of BAV patients who undergo TAVI is expected.

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Background: Myocardial ischemia (INOCA) and acute myocardial infarction with non-obstructive coronary artery disease (MINOCA) represent emerging entities in the landscape of interventional cardiology. These conditions have heterogeneous pathophysiological mechanisms and clinical presentations, complex diagnostics, and high prognostic significance.

Methods: This survey was carried out jointly by the GISE Young Committee with the support of the SICI-GISE Society and the ICOT group with the aim of evaluating the implementation of diagnostic-therapeutic pathways in cases of suspected/confirmed INOCA and MINOCA diseases.

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