Publications by authors named "Apostolos Karavidas"

Article Synopsis
  • Patients with diabetes mellitus (DM), particularly type II DM (T2DM), are at a higher risk for developing heart failure (HF), yet there is limited data on how prevalent different stages of HF are among this group in Greece.
  • This study aims to investigate the occurrence and progression of HF stages in T2DM patients diagnosed in the last decade (with no prior HF history) and to identify factors that may lead to symptomatic HF in these patients.
  • Using a multi-center, prospective cohort design involving 300 patients across 11 specialized cardiology centers, the study will track various health data over 24 months to determine the rates of symptomatic HF and other HF stages in this population.
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Article Synopsis
  • Modern treatments for blood cancers have greatly enhanced patient outcomes, but many cancer drugs can lead to serious heart-related issues.
  • Understanding these potential cardiovascular complications, such as heart failure and rhythm disturbances, is essential for optimal patient care.
  • The review highlights the symptoms, prevention strategies, and management of heart toxicity in patients receiving cancer treatments or stem cell transplants.
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Background: Currently, we remain uncertain about which patients are at increased risk for recurrent pericarditis. We developed a risk score for pericarditis recurrence in patients with acute pericarditis.

Materials And Methods: We prospectively recruited 262 patients with a first episode of acute pericarditis.

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Numerous models and biomarkers have been proposed to estimate prognosis and improve decision-making in patients with acute heart failure (AHF). The present literature review provides a critical appraisal of externally validated prognostic models in AHF, combining clinical data and biomarkers. We perform a literature review of clinical studies, using the following terms: "acute heart failure," "acute decompensated heart failure," "prognostic models," "risk scores," "mortality," "death," "hospitalization," "admission," and "biomarkers.

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The short-term mortality and rehospitalization rates after admission for acute heart failure (AHF) remain high, despite the high level of adherence to contemporary practice guidelines. Observational data from non-randomized studies in AHF strongly support the in-hospital administration of oral evidence-based modifying chronic heart failure (HF) medications (i.e.

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Aims: Oral sucrosomial iron (SI) combines enhanced bioavailability and tolerance compared to conventional oral iron along with similar efficacy compared to intravenous iron in several conditions associated with iron deficiency (ID).

Methods And Results: In this non-randomized, open-label study, we sought to evaluate prospectively the effects of SI on clinical parameters, exercise capacity and quality of life in 25 patients with heart failure (HF) with reduced ejection fraction (HFrEF) and ID, treated with SI 28 mg daily for 3 months, in comparison to 25 matched HFrEF controls. All patients were on optimal stable HF therapy.

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Heart failure (HF) and atrial fibrillation (AF) often coexist, being closely interrelated as the one increases the prevalence and incidence and worsens the prognosis of the other. Their frequent coexistence raises several challenges, including under-diagnosis of HF with preserved ejection fraction in AF and of AF in HF, characterization and diagnosis of atrial cardiomyopathy, target and impact of rate control therapy on outcomes, optimal rhythm control strategy in the era of catheter ablation, HF-related thromboembolic risk and management of anticoagulation in patients with comorbidities, such as chronic kidney disease or transient renal function worsening, coronary artery disease or acute coronary syndromes, valvular or structural heart disease interventions and cancer. In the present document, derived by an expert panel meeting, we sought to focus on the above challenging issues, outlining the existing evidence and identifying gaps in knowledge that need to be addressed.

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Pericardial effusion (PE) prognosis depends on the underlying etiology. We sought to assess the outcome of patients with chronic (>3 months), large (diastolic echo-free space >2 cm), idiopathic (without apparent etiology), C-reactive protein (CRP) negative PE, a topic where data are lacking. A total of n = 74 patients were enrolled in this study.

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Background And Aims: Increased sodium intake is associated with increased risk of decompensation in patients with heart failure. This non-randomized, open-label, controlled study aimed to examine the feasibility, preliminary safety and efficacy of a low sodium-potassium enriched salt substitute compared to regular table salt in patients with heart failure with reduced ejection fraction (HFREF).

Methods: Fifty patients (68% male, NYHA I/II/III 6%/68%/26%, mean age 70 ± 9 years, LVEF 31 ± 5%, median BNP 112 pg/ml) were included.

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Background/aim: Anthracyclines, such as doxorubicin, though widely used in anticancer therapy, they are associated with cardiotoxic side-effects. The aim of this trial was to investigate long-term follow-up cardiotoxicity findings in patients treated with doxorubicin and concomitant metoprolol or enalapril 10 years earlier.

Patients And Methods: Overall, 147 patients were randomized into the treatment arms.

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Heart Failure (HF) is a global pandemic with rapidly increasing prevalence. In an attempt to maintain patients well being, the therapeutic interest has expanded to the vicious cycles that confer to HF mortality and morbidity and a number of comorbidities have been targeted. Iron deficiency represents a common comorbid condition that affects outcomes in HF.

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Background: Aspirin and nonsteroidal anti-inflammatory drugs (A/NSAIDs) are the mainstay treatments for acute pericarditis. We sought to identify factors predicting failure of A/NSAIDs and switch to corticosteroid treatment (STCT) as well as the impact of STCT on pericarditis recurrence.

Methods: We enrolled 148 patients with acute pericarditis receiving A/NSAIDs (n=110) or corticosteroids (n=38) as first-line treatment according to clinical indications.

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Background: The inflammatory glycoprotein chitinase-3-like protein 1 or YKL-40 has emerged as a potential biomarker of cardiovascular diseases, including atrial fibrillation (AFib). We sought to assess YKL-40 in a wide spectrum of supraventricular arrhythmias besides AFib in comparison with other inflammatory markers.

Methods: We determined serum levels of YKL-40, C-reactive protein (CRP) and IL-6 in 70 patients with AFib, atrial flutter, atrioventricular node reentry tachycardia or other supraventricular tachycardias before, immediately after therapy and 1 week after therapy; 20 healthy patients served as controls.

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Background/design Functional electrical stimulation of lower limb muscles is an alternative method of training in patients with chronic heart failure (CHF). Although it improves exercise capacity in CHF, we performed a randomised, placebo-controlled study to investigate its effects on long-term clinical outcomes. Methods We randomly assigned 120 patients, aged 71 ± 8 years, with stable CHF (New York Heart Association (NYHA) class II/III (63%/37%), mean left ventricular ejection fraction 28 ± 5%), to either a 6-week functional electrical stimulation training programme or placebo.

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Background: The pathophysiology of acute pericarditis remains largely unknown, and biomarkers are needed to identify patients susceptible to complications. As adipose tissue has a pivotal role in cardiovascular disease pathogenesis, we hypothesized that quantification of epicardial fat volume (EFV) provides prognostic information in patients with acute pericarditis.

Materials And Methods: Fifty (n = 50) patients with first diagnosis of acute pericarditis were enrolled in this study.

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Objectives: The aim of the study was to evaluate the cost-effectiveness (CE) of treatment with eplerenone versus standard care in adult patients with New York Heart Association class II chronic heart failure and reduced left ventricular ejection fraction from the perspective of the Greek national health care payer.

Methods: A discrete-event model simulating the clinical course and respective outcomes of eplerenone as an add-on to standard therapy versus standard therapy alone based on the pivotal Eplerenone in Mild Patients Hospitalization and SurvIval Study in Heart Failure (EMPHASIS-HF) trial was locally adapted for the Greek setting. Data on medications followed the resource use from eplerenone in mild patients hospitalization and survival study in heart failure and were estimated on a lifetime basis (or until discontinuation).

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The combination of neprilysin inhibitor sacubitril with the angiotensin II receptor 1 blocker valsartan is the first agent from the angiotensin receptor neprilysin inhibitors (ARNI) class authorized for clinical use in heart failure (HF) patients with reduced ejection fraction (HFrEF). Sacubitril/valsartan resulted in 20% reduction in the incidence rate of death or HF hospitalization compared to enalapril in symptomatic HFrEF patients in the seminal PARADIGM-HF trial. As a result, the recently updated European and American HF guidelines granted this agent a class IB indication for the treatment of ambulatory/chronic symptomatic HFrEF patients.

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Levosimendan is a positive inotrope with vasodilating properties (inodilator) indicated for decompensated heart failure (HF) patients with low cardiac output. Accumulated evidence supports several pleiotropic effects of levosimendan beyond inotropy, the heart and decompensated HF. Those effects are not readily explained by cardiac function enhancement and seem to be related to additional properties of the drug such as anti-inflammatory, anti-oxidative and anti-apoptotic ones.

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Acute heart failure (AHF) represents the first reason for hospitalization in the elderly and despite therapeutic advances, remains a syndrome with significant morbidity and dismal prognosis. Hospitalization for AHF, on the other hand, is the single most important contributor to the huge financial burden related to HF. As a result, there is a significant unmet need for more effective in-hospital management of patients with AHF in order to improve outcomes, reduce readmission rate and alleviate the socioeconomic burden of the syndrome.

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