Publications by authors named "Andrea Barbieri"

Over the past decade, stress echocardiography has evolved from a test for assessing epicardial artery stenosis to a comprehensive functional test, targeting multiple cardiovascular parameters. The new approach includes several structured steps: (a) evaluating regional wall motion abnormalities to detect epicardial artery stenosis or vasospasm; (b) assessing pulmonary congestion and diastolic function via B-lines with lung ultrasound; (c) gauging preload and contractile reserve with volumetric echocardiography; (d) measuring coronary microvascular reserve using Doppler-based coronary flow velocity in the middistal left anterior descending artery; and (e) determining cardiac sympathetic reserve by tracking heart rate reserve on an ECG. This evolution was supported extensively by the Italian Society of Echocardiography and Cardiovascular Imaging (SIECVI), which played a key role in five areas: (1) developing the initial, curiosity-driven project; (2) disseminating protocols and results at national and international conferences, supporting logistic infrastructure and publication expenses; (3) establishing a digital platform (customized Redcap) for data entry and storage; (4) facilitating patient recruitment across 19 Italian centers; and (5) offering formal endorsement through six presidencies, adding credibility and reach beyond any single institution.

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Aims: How to detect and monitor left ventricular thrombus (LVT) remains complex since clinicians can rely only on retrospective, single-centre data. To characterize the incidence and independent associates of LVT resolution (assessed with echocardiography) and its clinical implications on long-term follow-up in a contemporary cohort of consecutive patients with LVT.

Methods And Results: Ten centres were involved in this observational prospective multicentre study.

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Background: In aortic valve stenosis (AS), measurement of stroke volume index (SVi) by the 2D Doppler- technique is required to calculate the aortic valve area (AVA) and determine flow status but is prone to systematic errors.

Purpose: To investigate the prevalence of low-flow (LF) state (SVi ≤ 35 ml/m) in patients with AS and concurrent SVi quantification by a validated 3D left ventricular volumetric method and standard 2D Doppler methods and its potential repercussions on flow status reclassification.

Methods: Consecutive patients with moderate or severe AS (≤1.

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Background: This study evaluates the association between left atrial and right atrial (LA, RA) parameters and a composite endpoint (CEP) of all-cause death, thromboembolism, acute coronary syndrome, and heart failure hospitalization in atrial fibrillation (AF) patients.

Material And Methods: Patients were prospectively enrolled. At baseline, the following echocardiogram parameters were measured: LA and RA antero-posterior diameter index (iLAAPD, iRAAPD), LA and RA volume index (LAVi, RAVi), LA and RA sphericity index (LASI, RASI), LA and RA emptying fraction.

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A supramolecular system, consisting of a tetrapyrenylporphyrinic core surrounded by arene-ruthenium prisms, has been assembled and characterized by means of electrochemical and photophysical techniques. The photophysical study shows that quantitative energy transfer from the peripheral pyrenyl units towards the central porphyrin core is operative in the tetrapyrenylporphyrinic system. Interestingly, encapsulation of the pyrenyl units into the ruthenium cages affects the photophysics of the central porphyrin component, since its emission quantum yield is reduced in the supramolecular array.

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Hypercontractile phenotype (HP) of the left ventricle (LV) is an actionable therapeutic target in patients with chronic coronary syndromes (CCS) or heart failure (HF), but its clinical recognition remains difficult. To assess the clinical variables associated with the HP. In a prospective, observational, multicenter study, we recruited 5122 patients (age 65 ± 11 years, 2974 males, 58%) with CCS and/or HF with preserved ejection fraction (EF).

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  • * A survey of 159 centers showed that over 30% of echocardiography workloads are related to cancer, with most centers primarily using TTE to assess left ventricular ejection fraction (LVEF). However, many are still using outdated methods for these assessments.
  • * The findings indicate a significant gap between current practices and recommended standards, highlighting the need for better collaboration between cardiologists and oncologists to improve cancer patient care and establish dedicated cardio-oncology services.
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  • The study compares patients with degenerative mitral regurgitation (DMR) from Asian institutions (AsIs) and European/American institutions (EAIs) to understand differences in their presentation, management, and outcomes.
  • AsI patients were generally younger, had fewer symptoms, and presented with smaller heart dimensions, yet underwent fewer interventions and experienced higher mortality rates compared to EAI patients.
  • The findings suggest that imaging may not accurately reflect the severity of DMR in AsI patients due to their smaller body size, indicating a potential issue with under-treatment in this population.
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Aims: Transthyretin cardiac amyloidosis (ATTR-CA) is a rare and progressive cardiomyopathy caused by amyloid fibril deposition in myocardial tissue. Diagnostic challenges have historically hampered timely detection. Recent advances in noninvasive diagnostic techniques have facilitated ATTR-CA diagnosis.

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  • * Quick and accurate diagnosis is critical to avoid complications and improve treatment outcomes, necessitating the use of echocardiography as the primary imaging method.
  • * The text aims to address key questions regarding when to start echocardiographic evaluation in stable patients, the time-sensitive nature of diagnosing IE, and best practices for using echocardiography in unstable patients.
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  • Advanced echocardiographic imaging (AEI) techniques, like 3D echocardiography and strain analysis, provide more accurate assessments of heart function compared to traditional methods, offering better prognostic insights.
  • A national survey by the Italian Society of Echocardiography and Cardiovascular Imaging revealed varying use of AEI across 173 echo labs in Italy, categorized into low, moderate, and high-volume activity based on the number of echocardiograms performed.
  • Results showed that 3D transthoracic echocardiography was used in 75% of labs, with higher usage in high-volume centers, and strain analysis was employed by 80% of labs, indicating a trend towards more advanced imaging capabilities in
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Aims: In patients with degenerative mitral regurgitation (DMR), left ventricular (LV) dysfunction is associated with increased risk of heart failure and excess mortality. LV end-systolic diameter (LVESD) is an established trigger for intervention, yet recommended LVESD thresholds apply poorly to patients with small body size. Whether LV normalization to body surface area (BSA) may be used as a trigger for DMR correction is unknown.

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  • The study evaluated the long-term survival outcomes of 2833 patients with severe degenerative mitral regurgitation (DMR) who underwent surgical correction, guided by various surgical indications.
  • Results indicated that patients classified under Class-I triggers experienced significantly lower postoperative survival rates compared to those under Class-IIa triggers or no triggers, with a median follow-up of 8.5 years showing a stark difference in survival percentages.
  • Overall, operating on patients with Class-I criteria resulted in a considerable loss of postoperative survival time, suggesting that immediate surgery based on these guidelines may not be the best approach for improving long-term outcomes in DMR patients.
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Background And Aims: Presentation, outcome, and management of females with degenerative mitral regurgitation (DMR) are undefined. We analysed sex-specific baseline clinical and echocardiographic characteristics at referral for DMR due to flail leaflets and subsequent management and outcomes.

Methods: In the Mitral Regurgitation International Database (MIDA) international registry, females were compared with males regarding presentation at referral, management, and outcome (survival/heart failure), under medical treatment, post-operatively, and encompassing all follow-up.

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  • - The study aimed to assess how the presence of raphe (a type of anatomical feature) in patients with bicuspid aortic valve (BAV) correlates with valve dysfunction, aortopathy, and the likelihood of needing aortic valve surgery.
  • - Researchers analyzed 695 BAV patients, finding that those with raphe experienced more moderate to severe aortic stenosis and a higher prevalence of aortopathy, particularly Type B, compared to those without raphe.
  • - The results indicated that having raphe significantly raises the odds of requiring aortic valve surgery within three years, highlighting the importance of monitoring patients with this anatomical feature.
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  • The Italian Society of Echography and Cardiovascular Imaging (SIECVI) conducted a national survey to investigate stress echocardiography (SE) practices across Italy, collecting data from 228 laboratories in November 2022.
  • The survey revealed that out of 179 centers performing SE, most were located in northern Italy, and the study categorized them into low, moderate, and high volume of activity based on the number of SE examinations.
  • Key findings indicated differences in the use of stressors, with a tendency for high-volume centers to employ multiple stress techniques and incorporate advanced evaluations like coronary flow velocity reserve (CFVR) more frequently than low and moderate volume centers.
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Background And Aims: Patients with heart failure (HF) with reduced left ventricular (LV) ejection fraction (EF) have a heterogeneous prognosis, and assessment of coronary physiology with coronary flow velocity (CFV) and coronary flow velocity reserve (CFVR) may complement established predictors based on wall motion and EF.

Methods And Results: In a prospective multicenter study design, we enrolled 1,408 HF patients (age 66 ± 12 years, 1,035 men), with EF <50%, 743 (53%) with coronary artery disease, and 665 (47%) with normal coronary arteries. Recruitment (years 2004-2022) involved 8 accredited laboratories, with inter-observer variability <10% for CFV measurement.

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The manuscript reports on a study conducted on a youth mental health intervention, proposing a novel framework to look at the therapeutic potential of viticultural landscapes. Drawing on care studies applied to agricultural contexts, the work explores how the attention-based practice of manual grape harvest in a specific natural and social environment can produce a "therapeutic landscape of the mind". Through ethnographic research, we investigate how the spatial and social context of the viticultural environment influences the experience of a group of young people with mental-ill health, eventually supporting their process of recovery.

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  • Left atrial myopathy is common in chronic coronary syndromes and can be triggered by stress, especially in patients with atrial fibrillation.
  • A study involving 3042 patients assessed left atrial volume and function at rest and during stress, showing that left atrial volume index increased and LA strain decreased as patients progressed from sinus rhythm to permanent atrial fibrillation.
  • The findings highlighted that both paroxysmal and permanent AF are linked to greater left atrial dilation and dysfunction, which correlates with more instances of stress-induced ischemia and pulmonary congestion.
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The differentiation of left ventricular (LV) hypertrophic phenotypes is challenging in patients with normal ejection fraction (EF). The myocardial contraction fraction (MCF) is a simple dimensionless index useful for specifically identifying cardiac amyloidosis (CA) and hypertrophic cardiomyopathy (HCM) when calculated by cardiac magnetic resonance. The purpose of this study was to evaluate the value of MCF measured by three-dimensional automated, machine-learning-based LV chamber metrics (dynamic heart model [DHM]) for the discrimination of different forms of hypertrophic phenotypes.

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Background: The Italian Society of Echocardiography and Cardiovascular Imaging (SIECVI) conducted a national survey to understand better how different echocardiographic modalities are used and accessed in Italy.

Methods: We analyzed echocardiography laboratory activities over a month (November 2022). Data were retrieved via an electronic survey based on a structured questionnaire, uploaded on the SIECVI website.

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