Publications by authors named "Pedrazzini Giovanni"

Extracellular vesicles (EVs) offer valuable diagnostic and prognostic insights for cardiovascular (CV) diseases, but the influence of age-related chronic inflammation ("inflammaging") and sex differences on EV profiles linked to CV risk remains unclear. This study aimed to use EV profiling to predict age and stratify patients by CV risk. We developed an EVaging index by analyzing surface antigen profiles of serum EVs from 625 participants, aged 20 to 94 years, across varying CV risk groups.

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Infective endocarditis and infection of cardiac devices are conditions characterized by high morbidity and mortality, thus requiring a prompt diagnosis. Advanced imaging modalities are often required in the management of infectious endocarditis according to guidelines. The aim of this review is to collect and describe evidence-based knowledge about the diagnostic role and clinical usefulness of [F]FDG PET/CT in endocarditis and cardiac device infections based on published systematic reviews and meta-analyses on this topic and on recent guidelines.

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Ischemic electrocardiographic changes in the setting of pulmonary embolism are typically the result of dilatation of the right cavities and/or right ventricular ischaemia, without coronary occlusion. We present a patient with pulmonary embolism and concomitant myocardial infarction, with the aim of exploring the possible links between these 2 distinct entities.

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Background: Transcatheter tricuspid valve intervention (TTVI) has been increasingly adopted in recent years for the treatment of patients with tricuspid regurgitation (TR). However, no dedicated risk stratification has been established for patients undergoing TTVI.

Objectives: The aim of the present study was to propose a dedicated risk score for patients affected by severe TR undergoing TTVI.

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Article Synopsis
  • Doctors are studying how a procedure called transcatheter tricuspid valve interventions (TTVI) affects patients with heart issues, specifically focusing on something called mitral regurgitation (MR) after the procedure.
  • They looked at data from a big group of patients and found that many showed improvement in MR after the procedure, but some got worse.
  • They discovered that certain factors, like successful procedures and specific treatments, could help predict whether a patient’s MR would improve or get worse after TTVI.
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This study aimed to examine whether acute myocardial infarction (AMI) patients in Switzerland return to work and identify factors associated therewith. Data of 4315 working-age AMI patients enrolled in the Swiss AMIS Plus registry between 01/2006 and 09/2021 with 1-year follow-up and self-reported work status were analyzed. Patient characteristics were compared between those who did not reduce their work hours, those who reduced, and those who were no longer working 1 year after AMI.

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Background: Currently, no clear impact of sex on short- and long-term survival following transcatheter edge-to-edge mitral valve repair (TEER) is evident, although no data are available on postprocedural life expectancy. Our aim was to assess sex-specific differences in outcomes of patients with mitral regurgitation (MR) treated by TEER.

Methods And Results: Short-term and 5-year outcomes in men and women undergoing TEER between 2011 and 2018 who were included in the large, multicenter, real-world MitraSwiss registry were analyzed.

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Article Synopsis
  • Surgical techniques like minimally invasive coronary artery bypass (MIDCAB) and hybrid revascularization (HCR) show promise in safety and effectiveness, but long-term data remains unclear.
  • In a study involving nearly 2,000 patients, 92 underwent MIDCAB, resulting in very low cardiac mortality (0%) and an overall mortality of 3% over a median follow-up of 75 months.
  • The study suggests that both MIDCAB and HCR provide positive outcomes in specific patients when assessed by a dedicated heart team.
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Article Synopsis
  • * It found that patients with mild residual TR had an 85% survival rate, while those with moderate and severe TR had significantly lower rates of 70% and 44%, respectively.
  • * The research emphasizes the need for a more detailed classification of TR severity to better predict patient outcomes and highlights the goal of achieving at least mild to moderate residual TR for successful interventions.
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The Swiss Ticino regional pulmonary embolism response team (PERT) features direct access to various pharmacomechanical PE management options within a hub/spoke system, by integrating evidence, guidelines' recommendations and personal experiences. This system involves a collaborative management of patients among the hospitals distributed throughout the region, which refer selected intermediate-high or high PE patients to a second-level hub center, located in Lugano at Cardiocentro Ticino, belonging to the Ente Ospedaliero Cantonale (EOC). The hub provides 24/7 catheterization laboratory activation for catheter-based intervention (CBI), surgical embolectomy and/or a mechanical support system such as extracorporeal membrane oxygenation (ECMO).

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Article Synopsis
  • The study examines the effectiveness of the TRI-SCORE in predicting outcomes for patients undergoing transcatheter tricuspid valve intervention (TTVI), using data from a large, international registry called TriValve.
  • Among the 634 patients analyzed, those with a TRI-SCORE of 8 or higher were found to have a significantly increased risk of all-cause mortality and complications within 30 days of the procedure, compared to those with lower TRI-SCOREs.
  • Despite indicating a higher risk for severe outcomes, the TRI-SCORE overall showed limited effectiveness in predicting clinical results following TTVI, as improvements in patient functional class were observed across all TRI-SCORE levels.
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Aims: T-TEER is an effective therapy for the treatment of tricuspid regurgitation (TR). However, the effects of leaflets clipping on tricuspid valve annulus (TA) have not been investigated in detail. The aim of this study is to investigate the effects of tricuspid transcatheter edge-to-edge repair (T-TEER) on TA diameter.

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Article Synopsis
  • The study aimed to compare the characteristics and outcomes of patients with atrial STR (ASTR) and ventricular STR (VSTR) who underwent transcatheter edge-to-edge repair (T-TEER) for tricuspid regurgitation (TR).
  • Patients were categorized into ASTR or VSTR based on specific cardiac criteria, and a total of 298 were included in the analysis, with similar procedural success rates for both groups.
  • Results showed that while T-TEER effectively reduced TR in both ASTR and VSTR patients, survival rates at 12 months were significantly higher for ASTR (91%) compared to VSTR (72%).
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Background: Survival data after mitral transcatheter edge-to-edge repair (TEER) are scarce, and its impact on predicted life expectancy is unknown.

Objectives: The aim of this study was to estimate the impact of TEER on postprocedural life expectancy among patients enrolled in the MitraSwiss registry through a relative survival (RS) analysis.

Methods: Consecutive TEER patients 60 to 89 years of age enrolled between 2011 and 2018 (N = 1140) were evaluated.

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Evaluation of the right ventricle (RV) in patients with acute myocarditis (MY) remains challenging with both 2D transthoracic echocardiography (TTE) and cardiovascular magnetic resonance (CMR). We examined the incremental diagnostic value of CMR feature tracking (FT) to evaluate RV involvement in patients with myocarditis. We enrolled 54 patients with myocarditis and preserved left ventricle (LV) ejection fraction (EF).

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Sex-related disparities have been recognized in incidence, pathological findings, pathophysiological mechanisms, and diagnostic pathways of non-rheumatic mitral regurgitation. Furthermore, access to treatments and outcomes for surgical and interventional therapies among women and men appears to be different. Despite this, current European and US guidelines have identified common diagnostic and therapeutic pathways that do not consider patient sex in decision-making.

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Left ventricular ejection fraction (LVEF) represents one of the strongest predictors of both in-hospital and long-term prognosis in acute myocardial infarction (AMI). Temporal trends data coming from real-world experiences focused on patients with AMI with severely reduced LVEF (i.e.

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Objectives: The identification of patients with mitral valve prolapse (MVP) presenting high arrhythmic risk remains challenging. Cardiovascular Magnetic Resonance (CMR) feature tracking (FT) may improve risk stratification. We analyzed the role of CMR-FT parameters in relation to the incidence of complex ventricular arrhythmias (cVA) in patients with MVP and mitral annular disjunction (MAD).

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Background: The benefit related to the use of preprocedural computed tomography angiography (CCTA) on top of periprocedural echocardiography to plan percutaneous left atrial appendage closure (LAAC) procedures is still unclear.

Objectives: The authors sought to evaluate the impact of preprocedural CCTA on LAAC procedural success.

Methods: In the investigator-initiated SWISS-APERO (Comparison of Amplatzer Amulet and Watchman Device in Patients Undergoing Left Atrial Appendage Closure) trial, patients undergoing echocardiography-guided LAAC were randomly assigned to receive the Amulet (Abbott) or Watchman 2.

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Imaging modalities are increasingly being used to evaluate the underlying pathophysiology of heart failure. Positron emission tomography (PET) is a non-invasive imaging technique that uses radioactive tracers to visualize and measure biological processes in vivo. PET imaging of the heart uses different radiopharmaceuticals to provide information on myocardial metabolism, perfusion, inflammation, fibrosis, and sympathetic nervous system activity, which are all important contributors to the development and progression of heart failure.

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Aims: Standard manual analysis of IVUS to study the impact of anti-atherosclerotic therapies on the coronary vessel wall is done by a core laboratory (CL), the ground truth (GT). Automatic segmentation of IVUS with a machine learning (ML) algorithm has the potential to replace manual readings with an unbiased and reproducible method. The aim is to determine if results from a CL can be replicated with ML methods.

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Article Synopsis
  • This study examines the relationship between tricuspid valve gradient (TVG) and clinical outcomes in patients who underwent tricuspid transcatheter edge-to-edge repair (TEER) for significant tricuspid regurgitation.
  • Researchers analyzed data from 308 patients and categorized them into quartiles based on their mean TVG at discharge.
  • The results showed no significant differences in mortality or heart failure hospitalizations across the TVG quartiles one year post-procedure, indicating that higher discharge TVG was not linked to worse outcomes.
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Aims: Modifiable cardiovascular risk factors (RFs) play a key role in the development of coronary artery disease. We evaluated 20-year trends in RF prevalence among young adults hospitalized with acute coronary syndromes (ACS) in Switzerland.

Methods And Results: Data were analysed from the Acute Myocardial Infarction in Switzerland (AMIS) Plus registry from 2000 to 2019.

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