Publications by authors named "Penicka M"

Background: A substantial number of patients with severe aortic stenosis (AS) undergoing transcatheter aortic valve implantation (TAVI) experience adverse events after TAVI, with health care expenditure. We aimed to investigate cardiac remodeling and long-term outcomes in diabetic patients with severe AS, left ventricular ejection fraction (LVEF) < 50%, and extra-valvular cardiac damage (EVCD) undergoing TAVI treated with sodium-glucose cotransporter-2 inhibitors (SGLT2i) versus other glucose-lowering strategies (no-SGLT2i users).

Methods: Multicenter international registry of consecutive diabetic patients with severe AS, LVEF < 50%, and EVCD undergoing TAVI.

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Background: Left bundle branch block (LBBB) causes left atrial (LA) dyssynchrony. It is unknown if LA dyssynchrony impacts long-term prognosis.

Objectives: The purpose of this study was to determine mechanisms of LA dyssynchrony in LBBB and if LA dyssynchrony impacts long-term prognosis.

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Article Synopsis
  • - This paper discusses how cardiovascular magnetic resonance (CMR) imaging is used to evaluate patients with mitral valve disease, specifically focusing on mitral regurgitation (MR), a common heart valve issue that often has no symptoms but can lead to serious complications.
  • - CMR is particularly recommended when traditional ultrasound imaging doesn't provide clear information, as it offers detailed insights into the mitral valve structure and function, including aspects like leaflet shape and how MR affects heart remodeling.
  • - The review also aims to present both current and innovative CMR techniques for assessing mitral valve disease, including flow and myocardial evaluations, and suggests a simplified flow chart for healthcare providers to follow when performing CMR assessments.
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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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• PV endocarditis is a rare entity. • Severe PR has a characteristic spectral profile on continuous-wave Doppler. • Transesophageal echocardiography can help to visualize the PV.

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Background And Aims: The question of when and how to treat truly asymptomatic patients with severe aortic stenosis (AS) and normal left ventricular (LV) systolic function is still subject to debate and ongoing research. Here, the results of extended follow-up of the AVATAR trial are reported (NCT02436655, ClinicalTrials.gov).

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Article Synopsis
  • A study was conducted to improve the prediction of which coronary artery lesions could lead to acute coronary syndrome (ACS) by integrating artificial intelligence (AI) with traditional methods.
  • The research focused on patients who had undergone coronary CT angiography (CTA) before experiencing an ACS event, analyzing both culprit (problematic) and nonculprit lesions.
  • The new model incorporating AI features showed significantly better predictability for identifying high-risk lesions compared to standard methods, suggesting that AI can enhance cardiac risk assessment.
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Background: The optimal treatment of patients with severe symptomatic aortic regurgitation (AR) is state-of-the-art surgery. Asymptomatic patients with advanced left ventricular (LV) dilatation and/or impaired ejection fraction should undergo surgical treatment, but there is no guidelines consensus on cut-off values for this recommendation. Multimodality imaging has brought new tools for the accurate selection of asymptomatic patients at risk of early clinical deterioration, however, prospective and randomized data are pending.

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Valvular heart disease leads to ventricular pressure and/or volume overload. Pressure overload leads to fibrosis, which might regress with its resolution, but the limits and details of this reverse remodeling are not known. To gain more insight into the extent and nature of cardiac fibrosis in valve disease, we analyzed needle biopsies taken from the interventricular septum of patients undergoing surgery for valve replacement focusing on the expression and distribution of major extracellular matrix protein involved in this process.

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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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Background: Coronary microvascular dysfunction (CMD) is involved in heart failure (HF) onset and progression, independently of HF phenotype and obstructive coronary artery disease. Invasive assessment of CMD might provide insights into phenotyping and prognosis of patients with HF. We aimed to assess absolute coronary flow, absolute microvascular resistance, myocardial perfusion, coronary flow reserve, and microvascular resistance reserve in patients with HF with preserved ejection fraction and HF with reduced ejection fraction (HFrEF).

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: The response to cardiac resynchronization therapy (CRT) depends on septal viability and correction of abnormal septal motion. This study investigates if cardiac magnetic resonance (CMR) as a single modality can identify CRT responders with combined imaging of pathological septal motion (septal flash) and septal scar. : In a prospective, multicenter, observational study of 136 CRT recipients, septal scar was assessed using late gadolinium enhancement (LGE) ( = 127) and septal flash visually from cine CMR sequences.

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Aims: Obesity is causally related to the development of heart failure with preserved ejection fraction (HFpEF) but complicates the diagnosis and treatment of this disorder. We aimed to determine the relationship between severity of obesity and clinical, echocardiographic and haemodynamic parameters in a large cohort of patients with documented HFpEF.

Methods And Results: The REDUCE LAP-HF II trial randomized 626 patients with ejection fraction ≥40% and exercise pulmonary capillary wedge pressure (PCWP) ≥25 mmHg to atrial shunt or sham procedure.

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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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Article Synopsis
  • The study aimed to evaluate the accuracy of a virtual stenting tool, the FFR Planner, which uses coronary CT angiography (CCTA) data to predict fractional flow reserve (FFR) after percutaneous coronary interventions (PCI) in patients with chronic coronary syndromes.
  • It found that the FFR Planner showed good agreement with invasively measured post-PCI FFR across varying levels of CCTA image quality, with a mean difference of only 0.02 FFR units among different image quality scores.
  • The findings suggest that the FFR Planner's accuracy is influenced by a higher nitrate dose, and its reliability across various image qualities may enhance clinical decision-making in coronary interventions.
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Objective: To assess aortic regurgitation (AR) prevalence, its hemodynamic effect, and long-term prognostic implications in patients admitted with de novo or worsened heart failure with preserved ejection fraction (HFpEF).

Methods: Consecutive patients hospitalized with de novo or worsened HFpEF between 2014 and 2020 were enrolled. Patients with more than moderate aortic and/or mitral valve disease were excluded.

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The presence of mechanical dyssynchrony on echocardiography is associated with reverse remodelling and decreased mortality after cardiac resynchronization therapy (CRT). Contrarily, myocardial scar reduces the effect of CRT. This study investigated how well a combined assessment of different markers of mechanical dyssynchrony and scarring identifies CRT responders.

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The assessment of myocardial work (MW) using noninvasive pressure-strain loop analysis is a novel echocardiographic method that provides a more precise assessment of cardiac performance by considering the left ventricular loading condition. By integrating various MW components such as index, efficiency, and constructive and wasted work, an extensive analysis of left ventricular mechanics and energetics can be achieved. This approach offers a more comprehensive assessment of global cardiac function and performance, surpassing conventional surrogate indices.

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Aim: we sought to test the inter-center reproducibility of 16 echo laboratories involved in the EACVI-Afib Echo Europe.

Methods: This was done on a dedicated setting of 10 patients with sinus rhythm (SR) and 10 with persistent atrial fibrillation (AF), collected by the Principal Investigator. Images and loops of echo-exams were stored and made available for labs.

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Background: Many patients with heart failure and preserved ejection fraction have no overt volume overload and normal resting left atrial (LA) pressure.

Objectives: This study sought to characterize patients with normal resting LA pressure (pulmonary capillary wedge pressure [PCWP] <15 mm Hg) but exercise-induced left atrial hypertension (EILAH).

Methods: The REDUCE LAP-HF II (A Study to Evaluate the Corvia Medical, Inc.

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