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AIM To investigate the relationship between coronary artery calcium (CAC) score and left ventricular global longitudinal strain (LV GLS) in patients with arterial hypertension who had a negative treadmill exercise stress test but mild to intermediate coronary stenosis on coronary computed tomography angiography (CCTA). METHODS A total of 53 hypertensive patients (mean age 54.8 ± 4.8 years; 50.9% male) with 30-50% coronary stenosis on CCTA were included. Patients with diabetes, malignancy, or established coronary/peripheral artery disease were excluded. CAC score, left ventricular ejection fraction (LVEF, Simpson's method), and LV GLS (speckle-tracking echocardiography) were measured. Groups were stratified by GLS (< 18.5% vs. ≥ 18.5%) and LVEF (< 60% vs. ≥ 60%), and CAC score differences were assessed using the Mann-Whitney U test. RESULTS The median CAC score was 27 (IQR 16-44.5), median LVEF 60% (IQR 58-63%), and mean GLS 19.37 ± 0.89%. No overall association was found between CAC score and LV function by LVEF or GLS. In patients with left anterior descending (LAD) stenosis (30-50%), reduced LV function was linked to significantly higher CAC score. Median CAC score was higher in patients with GLS ≤ 18.5% (157 vs. 44.5; p = 0.019) and LVEF <60% (157 vs. 44.5; p = 0.019). No significant associations were found in right coronary artery (RCA), circumflex artery (Cx), or three-vessel stenosis subgroups. CONCLUSION Higher CAC score in hypertensive patients with mild LAD stenosis and negative stress testing identify those at risk of subclinical LV dysfunction.

B. Mitrovic, M. Radovic, L. Kos, T. Kovacevic-Preradovic, B. Džudović, S. Šalinger, E. Jevtic, V. Miloradović et al.

Background: The significance of imaging right-heart thrombus via echocardiography in acute pulmonary embolism (PE) patients, as well as its management, remains uncertain. Methods: In this retrospective, observational, multicenter, and multinational registry of consecutive acute PE patients, we compared 100 patients in whom thrombus was visualized in the right heart during echocardiographic evaluation with 2635 patients without visualization of thrombus. The co-primary endpoints were all-cause in-hospital mortality and PE-related mortality. Secondary endpoints included the prevalence of severe PE at admission (intermediate–high and high-risk PE), the frequency of thrombolytic therapy administration, and mortality among patients who received thrombolysis. Results: All-cause and PE-related mortality were higher in patients with thrombus in the right heart (31.0% vs. 9.6%, and 25.8% vs. 5.6%, p < 0.001, respectively). Patients with right-heart thrombi had a more severe PE presentation than those without (74.0% vs. 45.3%, p < 0.001). In patients treated with thrombolysis, all-cause mortality was higher in patients with right-heart thrombi (35.5% vs. 12.7%, p < 0.001). In the multivariable Cox regression analysis adjusted for ESC mortality risk, age, presence of syncope, atrial fibrillation, and hypoxemia, patients with thrombus in the right heart had a significantly higher risk of all-cause and PE-related death compared to patients without thrombus (HR 2.60, 95% CI 1.753–3.859, p < 0.001, and HR 3.287, 95% CI 2.056–5.253, p < 0.001, respectively). Conclusions: Visualization of thrombus in transit through the right heart is associated with higher all-cause and PE-related mortality, independent of PE severity and the use of thrombolytic therapy.

Q. Ciampi, Yi Wang, L. Cortigiani, A. Zagatina, R. Padang, Garvan C. Kane, H. Villarraga, A. M. Arruda-Olson et al.

Abstract Introduction Transthoracic echocardiography (TTE) identifies a hypercontractile phenotype (HP) in chronic coronary syndromes (CCS), characterized by elevated resting left ventricular (LV) elastance (force = systolic blood pressure/end-systolic volume). To evaluate the prognostic significance and functional correlates of HP. Methods In a prospective multicentre study, 10 677 patients with CCS underwent resting TTE to assess LV ejection fraction (EF), stroke volume, and force by quantitative volumetric echocardiography. All patients were followed for the endpoint of all-cause mortality. In a subset of 5834 patients, stress echocardiography (exercise or dobutamine) was performed for LV contractile reserve and heart rate reserve. Results Patients were stratified into Force quintiles (Q1–Q5). Patients with hypercontractile phenotype exhibited lower stroke volume at rest (Q5 = 34.8 ± 12.3 vs Q1–Q4 = 57.4 ± 19.1 mL; P < .01) and higher EF at rest (Q5 = 64.8 ± 6.9% vs Q1–Q4 = 58.1 ± 8.7%, P < .01). During a median follow-up of 24 months (interquartile range = 12–40 months), 509 deaths occurred. The exposure-adjusted death rate was lowest in Q3 (3.53–4.51 mmHg/mL; 1.03 per 100 person/years) and higher in Q1 (≤2.62 mmHg/mL, 2.88), Q2 (2.63–3.52 mmHg/mL, 1.86), Q4 (4.52–6.11 mmHg/mL, 1.56), and Q5 (HP, >6.11 mmHg/mL; 1.88; P < .0001 vs Q1 and Q3). Multivariable analysis identified HP (Q5; HR 1.531 vs Q3, 95% CI 1.116–2.099; P = .006) and EF (HR 0.963, 95% CI 0.953–0.972; P < .0001) as independent predictors of death. During exercise or dobutamine stress, HP showed reduced LV contractile reserve (ΔEF: Q5 = 4.3 ± 9.4% vs Q1–Q4 = 7.0 ± 9.3%; P < .001) and blunted heart rate reserve (Q5 = 1.77 ± 0.33 vs Q1–Q4 = 1.85 ± 0.39; P < .01). All patients with force-based LV contractile reserve >4.1 (present in 185, 3.2% of the population) survived. Conclusion Patients with CCS with HP assessed by resting TTE demonstrate higher mortality and multilayered functional impairment, including reduced LV contractile and chronotropic reserves. Hypercontractile phenotype improved the prediction of mortality by EF. A ‘stronger’ heart is, in fact, functionally and prognostically weaker.

Eugenio Picano, A. Zagatina, L. Cortigiani, R. Padang, Garvan C. Kane, H. Villarraga, Adelaide M. Arruda-Olson, J. Lowenstein et al.

Stress echocardiography (SE) has evolved beyond its traditional role of detecting coronary artery disease (CAD) through a single marker-regional wall motion abnormality (RWMA). This conventional approach, while guideline-embedded, faces a declining positivity rate and reduced prognostic power in today's diverse patient population. In response, SE has undergone a conceptual transformation into a multi-marker, comprehensive functional assessment of patient vulnerability. The modern multi-marker protocol, known as the ABCDE-SE, integrates five steps during a single stress test: Step A assesses RWMA for ischemia; Step B quantifies pulmonary congestion via B-lines and E/e'; Step C evaluates left ventricular volume response; Step D measures coronary flow velocity reserve for microvascular function; and Step E determines heart rate reserve for autonomic function. Each step identifies distinct pathophysiological mechanisms and actionable therapeutic targets, significantly refining risk stratification.Developed and validated over the past decade with the SE 2030 study (2016-2030), the flagship project of SIECVI, Italian Society of Echocardiography and Cardiovascular Imaging, and adopted by 50 laboratories from 20 countries, the ABCDE protocol represents a universal and widely accessible platform, applicable to all patients with suspected cardiac disease. It paves the way for personalized medicine by enabling tailored therapies targeted to the specific vulnerabilities.

M. Fudim, T. Kovacevic-Preradovic, Marija Zdravkovic, S. Jovev, Nermir Granov, Tanja Popov, I. Rudež, Petar Vukovic et al.

Abstract Introduction Relationship between changes in cardiac function, functional capacity, and patient-reported health status in heart failure (HF) remains incompletely defined, which may help inform endpoint selection and clarify how distinct clinical domains reflect treatment response. Methods This post hoc analysis of the randomized cardiac microcurrent (C-MIC) II trial, which evaluated the efficacy and safety of C-MIC therapy in patients with chronic HF with reduced ejection fraction on optimal guideline-directed medical therapy, included 65 ambulatory patients with non-ischaemic dilated cardiomyopathy, New York Heart Association (NYHA) Class III-IV symptoms, and baseline left ventricular ejection fraction (LVEF) 25–35%. Correlations between changes in Kansas City Cardiomyopathy Questionnaire Overall Summary Score (KCCQ-OSS), 6-minute walk distance (6MWD), core lab-assessed LVEF (primary measure) and site-assessed LVEF, and peak oxygen uptake (peak VO2) were evaluated at 4 weeks, 2 months, 3 months, 4 months, and 6 months using Pearson coefficients with 95% confidence intervals (CI). Results The mean age was 60.0 ± 9.7 years and baseline LVEF was 29.8 ± 3.3%. Baseline 6MWD was 291.4 ± 61.6 m and KCCQ-OSS was 42.6 ± 22.7. From baseline to 6 months, changes in KCCQ-OSS (n = 63) and 6MWD (n = 61) showed modest correlations with core lab-assessed LVEF (r = 0.39; 95% CI: 0.16–0.58; P = .0015 and r = 0.39; 95% CI: 0.15–0.58; P = .0022, respectively). Changes in KCCQ-OSS and 6MWD correlated strongly (n = 62; r = 0.63; 95% CI: 0.46–0.76; P < .0001). Changes in KCCQ-OSS and 6MWD did not correlate significantly with changes in peak VO2 (P = .06 and P = .30, respectively). Changes in LVEF and peak VO2 (n = 55) demonstrated modest correlation (r = 0.41; 95% CI: 0.16–0.61; P = .002). Baseline correlations with peak VO2 were weak to modest but increased at 6 months for LVEF (n = 59; r = 0.56; 95% CI: 0.35–0.71; P < .0001). Conclusion In advanced HF, improvements in health status and submaximal functional capacity associate modestly with LVEF, while LVEF correlates more closely with peak VO2. Cardiac function, functional capacity, and health status represent related but distinct domains, supporting multidimensional assessment in HF trials.

ObjectiveTo evaluate the predictive value of LA strain parameters and LASI for AF recurrence following electrical CV, and to compare them to conventional echocardiographic, biochemical, and clinical markers.MethodsIn this prospective, observational pilot study, 31 patients with persistent AF underwent electrical CV and were followed for six months. Echocardiographic evaluation included LA reservoir, conduit, and contractile strain, left atrial stiffness index, left atrial volume index (LAVI), left atrial appendage (LAA) morphology, left ventricular ejection fraction (LVEF), right atrial (RA) area, and right ventricular systolic pressure (RVSP). AF recurrence was assessed at three and six months.ResultsAt three months post-CV, LA reservoir, conduit, and contractile strain values were significantly negatively associated with AF recurrence (p < 0.001), while LASI and E/E' ratios were positively associated (p < 0.001). At six months, only contractile strain retained prognostic significance (p = 0.008). LVEF showed a positive correlation with recurrence at six months (p = 0.003), potentially reflecting the role of diastolic dysfunction.ConclusionLA strain parameters and LASI are valuable tools for predicting AF recurrence after CV, particularly in the early post-procedural period. Contractile strain may serve as a more reliable long-term predictor, emphasizing the importance of longitudinal atrial function assessment in rhythm outcome prediction. However, given the small sample size and single-center design, these results should be considered hypothesis-generating, requiring validation in larger studies.

J. Rame, J. Schmitto, D. Kosević, T. Kovacevic-Preradovic, S. Jovev, Marija Zdravkovic, Nermir Granov, Tanja Popov et al.

In patients with heart failure, alterations in electrical fields generated within the myocardium have been associated with myocardial oedema which can act as a substrate for left ventricular dysfunction. Safety and efficacy of a direct microcurrent therapy using an implanted generator (C‐MIC) remain uncertain.

S. Salinger, Aleksandra Kozic, B. Džudović, B. Subotic, J. Matijašević, M. Benic, V. Miloradović, Ema Jevtic et al.

Newly or already diagnosed cancer might significantly influence the clinical presentation, outcome, and therapy of acute pulmonary embolism (PE).

M. Brida, I. Lebid, K. Prokšelj, N. Pavšič, P. Antonova, M. Komar, L. Tomkiewicz-Pająk, D. Kecskeméti et al.

BACKGROUND AND AIMS Adults with congenital heart disease (ACHD) knowledge regarding their heart condition is crucial for optimal long-term outcome. Previous studies from North-Western Europe showed that important gaps in ACHD knowledge still exist. This study evaluates ACHD patients' knowledge in Central and South-eastern Europe (CESEE) and aims to identify opportunities for improving life-long ACHD care and outcomes in this region. METHODS A structured survey regarding the baseline heart condition knowledge was prospectively distributed to stable ACHD patients over a one-year period (2021-2022). Patients' responses were verified by their ACHD physicians to ensure accurate background information. RESULTS Among 1650 patients (age 34.5 ±14) across 14 CESEE countries the majority 1023(62.0%) had simple congenital heart disease with at least one previous heart procedure performed 1201(72.8%); 1060(64.2%) were asymptomatic and 875(53.8%) had secondary school education. Overall, 576(34.9%) did not have basic knowledge regarding their congenital heart disease and 146(12.2%) did not have basic understanding regarding their previous heart procedure/s. Patients considered their life expectancy similar to the general population (p=0.039). Encouragingly, 962(59.5%) expressed a desire to learn more, and 929(58.1%) favoured technological integration in their care. CONCLUSIONS Significant knowledge gaps exist amongst CESEE ACHD patients regarding their heart condition. Better ACHD patient education on current health and prospects is urgently needed. The results of this study should serve for developing congenital heart disease structured transitional and educational programmes in CESEE incorporating technology for their ACHD care and education to enhance patients' health knowledge and healthy life-behaviours to positively influence their life-long prospects.

Aleksandra Kozic, S. Šalinger, Z. Dimitrijevic, D. Stanojević, Tomislav Kostić, B. Džudović, I. Mitevska, J. Matijašević et al.

Background/Aim. Patients classified as belonging to simplified pulmonary embolism severity index (sPESI) class 0 are considered to have low-risk pulmonary embolism (PE). Yet, certain laboratory and echocardiographic parameters not accounted for in the sPESI score might suggest a likelihood of worse outcomes in PE cases. This study seeks to determine if the prognostic value of the sPESI score in acute PE can be improved, refined, and optimised by incorporating brain natriuretic peptide (BNP) and troponin I (TnI) levels, echocardiographic parameters, or glomerular filtration rate. Methods. The study encompassed 1,201 consecutive patients diagnosed with PE, confirmed by multidetector computed tomography (MDCT). Upon admission, each patient underwent an echocardiography exam, and blood samples were taken to measure B-type natriuretic peptide (BNP), troponin I (TnI), creatinine, and other routine laboratory markers. Results. The in-hospital mortality rate was 11.5%. The patients were categorized into three groups using the three-level sPESI model: sPESI 0, sPESI 1, and sPESI ≥ 2. Statistically significant differences were found among these groups regarding mortality rates, TnI values, BNP levels, estimated glomerular filtration rate (eGFR), and the presence of right ventricular dysfunction (RVD). Cox regression analysis identified eGFR as the most reliable predictor of 30-day all-cause mortality [HR 2.24 (CI 1.264-3.969); p = 0.006] across all sPESI categories. However, incorporating TnI, BNP, or RVD did not improve risk prediction beyond the three-level sPESI model. Conclusion. Renal dysfunction at the time of admission is closely related to an elevated risk of in-hospital mortality in patients with acute PE. The three-level sPESI score offers a more accurate method for prognostic stratification in these patients.

Bojan Stanetic, Miloš Majstorović, Ž. Živanović, L. Kos, E. Begić, M. Ostojić, T. Kovacevic-Preradovic

Introduction. When considering revascularization modalities, for patients with stable presentation, with appropriate coronary anatomy suitable for both PCI and CABG and low predicted surgical mortality, the recommendations are specifically focused on patients with main stem stenosis. In these cases, patients should be individually assessed according to the complexity of the anatomical disease, as determined by the anatomical SYNTAX score. In the last few years, the results of four randomized studies have been published comparing PCI with newer-generation DES and CABG in patients with left-main stenosis. The latest 2024 ESC guidelines for the management of chronic coronary syndromes recommend CABG over PCI when the anatomical SYNTAX score exceeds 22, as indicated by recent trials. The aim of this study was to examine whether the indications for CABG or PCI, as determined by the well-informed intuitive judgment of PCI operators in everyday clinical practice, align with the treatment recommendations outlined in the recently published ESC guidelines. Methods. Between January 1, 2023, and December 31, 2023, patients were recruited from the University Clinical Centre of the Republic of Srpska in Banja Luka, Bosnia and Herzegovina, utilizing the hospital information system. The study included consecutive patients diagnosed with significant unprotected left main coronary artery disease (≥50% diameter stenosis) confirmed through angiography, who did not exhibit major hemodynamic instability and received PCI at our facility. Patients were divided into two groups, based on the anatomical SYNTAX score i.e. those with SYNTAX ≤ 22 and those with SYNTAX > 22. Results. Following inclusion criteria, a total number of 38 patients were included in the analysis. The included patients had either previously diagnosed coronary artery disease or a high suspicion of coronary artery disease. The majority of the participants were male, with an average age of 65.6 years, with the youngest participant being 31 years old and the oldest 83 years old. A large majority of both sexes suffered from arterial hypertension, dyslipidemia, and type 2 diabetes. Participants in whom SYNTAX score was ≤ 22 were younger (p=0.049) and had less complex coronary artery disease i.e. fewer MEDINA 1,1,1 (p< 0.001) with less stents implanted (p=0.040). Over the course of one year of follow-up, three patients passed away, two of whom had a SYNTAX score exceeding 22. Additionally, two patients were lost to follow-up. Conclusion. The present study demonstrates that an intuitive decision-making process by experienced interventional cardiologists for choosing the optimal myocardial revascularization method for the individual patient with left main stenosis led to a discordance of the definitely chosen methods vs. the recommended method based on the SYNTAX score and ESC guidelines. This discordance between the recommended and the finally performed revascularization strategy led to a higher shortterm mortality.

Ž. Živanović, L. Kos, Bojan Stanetic, D. Trninić, Miloš Majstorović, T. Kovacevic-Preradovic

Acute myocardial infarction with ST elevation (STEMI) is a disease of the elderly, rarely of people younger than 40 years, predominantly men with comorbidities. The incidence of STEMI infarction in the general population in women younger than 40 years is very low. This paper presents the case of a young woman who was admitted with a diagnosis of STEMI infarction, which was understood as SCAD after coronary angiography. Repeated invasive diagnostics with intracoronary imaging determined that it was a classic infarction with plaque rupture/erosion and a large intraluminal thrombotic mass that partially embolized with occlusion of the apical part of the anterior descending artery (LAD). She was treated during hospitalization with dual antiplatelet therapy (DAPT) using a potent P2Y12 inhibitor and low molecular weight heparin, high dose of statins. Control coronary angiography revealed insignificant narrowing of the distal part of the main trunk of the left coronary artery (LM) and the proximal segment of the LAD with almost complete resolution of the thrombus. DAPT treatment was continued without stent implantation.

Vladimir Beronja, Bojan Stanetic, Dragan Unčanin, L. Kos, T. Kovacevic-Preradovic

Cryptogenic stroke is an ischemic stroke of unknown cause after a comprehensive diagnostic workup and accounts for a significant percentage of all strokes. This paper presents the case of a 37-year-old female patient with recurrent ischemic strokes, in whom a patent foramen ovale (PFO) was diagnosed and subsequently closed via catheter-based intervention. Despite this therapeutic procedure, further recurrences occurred. During electrophysiological evaluation and ablation of paroxysmal supraventricular tachycardia, paroxysms of atrial fibrillation were detected, leading to the initiation of anticoagulant therapy. During follow-up, the patient remained free of symptomatic recurrences. This case highlights the importance of prolonged monitoring for the detection of atrial fibrillation in patients with cryptogenic strokes, which can significantly influence therapeutic strategies and recurrence prevention.

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