Publications by authors named "Konstantin A Krychtiuk"

Hypertension is the single most important modifiable risk factor for preventable disability and death worldwide and disproportionately affects socially disadvantaged populations. We face a paradox-blood pressure control is low and recent trends suggest it is even declining, despite the availability of inexpensive and effective therapies. A variety of barriers on the system, patient, and healthcare provider side hinder effective drug-based risk factor management.

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New technologies enabling access to high-sensitivity cardiac troponin (hs-cTn) assays at the point of care (POC) are available for routine use. POC technology can accelerate cardiac troponin testing within the hospital setting and support testing in other healthcare environments. Pre-analytical and analytical issues unique to POC testing are discussed.

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Cardiogenic shock (CS) is a state of critical end-organ hypoperfusion caused by primary cardiac failure, in which the heart cannot generate sufficient output despite adequate preload and is associated with very high mortality rates. The emergence of precision medicine may enable tailored interventions based on individual patient profiles, including genetic, biomarker, imaging, and clinical data. Advanced hemodynamic monitoring, mechanical circulatory support devices with smaller profiles and higher flow, and targeted pharmacologic therapies have expanded the therapeutic possibilities in CS.

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Background: The European Society of Cardiology regularly updates its clinical practice guidelines. However, it is not well established whether guideline changes have significant effects on actual clinical practice. Therefore, we retrospectively analyzed lipid-lowering therapy at discharge after acute coronary syndrome (ACS) in a 1-year period before and a 1-year period after publication of the 2019 ESC/EAS Guidelines for the management of dyslipidaemias, respectively.

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: Mitochondrial DNA (mtDNA) has strong pro-inflammatory potential and was found to be associated with mortality in critically ill patients. The purine bases from circulating cell-free DNA, including mtDNA, are catabolised into uric acid, contributing to elevated systemic levels. However, the prognostic value of uric acid in unselected critically ill intensive care unit (ICU) patients remains unclear.

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Aims: Cardiologists have only had rare exposure to haemophilia patients and patients with other congenital bleeding disorders during the last decades, as these patients had a reduced life expectancy and were partly protected against thrombosis due to the bleeding disorder. With the availability of effective and safe replacement therapies of clotting factors, the average life expectancy in these populations of patients has significantly increased, and thrombotic complications may occur.

Methods And Results: The European Society of Cardiology Working Group on Thrombosis has taken the initiative to broaden the spectrum of these haematological conditions to include patients with a larger variety of congenital bleeding disorders with concomitant cardiac conditions as compared to a recent position paper by the European Haematology Association in collaboration with other societies (ISTH, European Association for Haemophilia and Allied Disorders, and ESO).

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Critically ill patients often display systemic immune dysregulation and increased inflammatory activity. Hemophagocytic lymphohistiocytosis (HLH) represents a rare syndrome defined by the inappropriate survival of cytotoxic T cells and the occurrence of cytokine storms. Although HLH is characterized by relatively high mortality rates, little is known about the predictive value of its diagnostic criteria.

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Aims: Cardiogenic shock (CS) is a severe complication of acute coronary syndrome (ACS) with mortality rates approaching 50%. The ability to identify high-risk patients prior to the development of CS may allow for pre-emptive measures to prevent the development of CS. The objective was to derive and externally validate a simple, machine learning (ML)-based scoring system using variables readily available at first medical contact to predict the risk of developing CS during hospitalization in patients with ACS.

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Purpose Of Review: Metabolic dysfunction-associated steatotic liver disease (MASLD) is the most common chronic liver disease, characterized by hepatic steatosis with at least one cardiometabolic risk factor. Patients with MASLD are at increased risk for the occurrence of cardiovascular events. Within this review article, we aimed to provide an update on the pathophysiology of MASLD, its interplay with cardiovascular disease, and current treatment strategies.

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: Acute stent thrombosis (ST) is a rare yet severe complication following percutaneous coronary intervention (PCI). Herein, we investigated the possible association between routinely available coagulation and fibrinolysis markers with early ST. : Within a single-center registry, we investigated the association between the preprocedural platelet count, plasma levels of fibrinogen and D-Dimer, and the incidence of early ST in the first 30 days after PCI.

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Article Synopsis
  • This study explores the link between ABO blood groups and the risk of early stent thrombosis in patients who underwent coronary interventions, focusing particularly on non-O blood groups and their association with cardiovascular issues.
  • Among 10,714 patients, only 0.73% experienced early stent thrombosis, and while non-O blood groups weren't significantly linked, those with B-antigens (B and AB blood types) showed a higher risk for early thrombosis compared to O type.
  • The findings suggest that B-antigen presence is a notable factor in early stent thrombosis risk, indicating a need for more research to understand the biological mechanisms behind this relationship.
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  • - Atrial fibrillation (AF) is more common in patients with type 2 diabetes and is linked to worse health outcomes; a trial called Harmony Outcomes was conducted to study the effects of albiglutide, a GLP-1 receptor agonist, on cardiovascular events in these patients.
  • - The trial included nearly 9,500 participants over 1.6 years and found that those with a history of AF had a higher rate of major adverse cardiac events, but albiglutide treatment reduced these events regardless of AF history.
  • - Although both groups on albiglutide experienced fewer AF events than those receiving a placebo, the reduction wasn't statistically significant, indicating that albiglutide can lower cardiovascular risks without
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  • * The AUGUSTUS trial compared the safety of antithrombotic treatments (apixaban vs vitamin K antagonists and aspirin vs placebo) in patients categorized by the number of comorbidities.
  • * Results showed that higher comorbidity levels increased bleeding risks, but no significant differences in outcomes between the antithrombotic regimens were observed, supporting the use of apixaban plus a P2Y inhibitor.
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  • A study was conducted to find out where Automatic External Defibrillators (AEDs) are located in Forsyth County, NC, focusing on large businesses and some small organizations.
  • Researchers carried out phone surveys with a 79.1% response rate, discovering that 411 businesses had AEDs and identifying a total of 963 AEDs across 573 locations.
  • Most AEDs (65.1%) were not listed in the state registry, and only a small fraction (11.8%) were included in the county’s emergency medical dispatch center registry.
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  • Recent guidelines advocate for quick initiation of lipid-lowering therapy (LLT) in patients with acute coronary syndromes (ACS) to achieve significant reductions in LDL cholesterol levels.
  • A European study involving 286 ACS patients evaluated the effectiveness of two LLT strategies: high-intensity statin monotherapy (mono-HIS) and a combination of high-intensity statins with ezetimibe (combo-HIS).
  • Findings showed that while LDL-c targets were met in under half of the patients, combo-HIS was linked to a significantly greater reduction in LDL-c levels compared to mono-HIS, suggesting its potential for more effective management in post-ACS care.*
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The management of cardiogenic shock is an ongoing challenge. Despite all efforts and tremendous use of resources, mortality remains high. Whilst reversing the underlying cause, restoring/maintaining organ perfusion and function are cornerstones of management.

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Out-of-hospital cardiac arrest (OHCA) occurs in nearly 350,000 people each year in the United States (US). Despite advances in pre and in-hospital care, OHCA survival remains low and is highly variable across systems and regions. The critical barrier to improving cardiac arrest outcomes is not a lack of knowledge about effective interventions, but rather the widespread lack of systems of care to deliver interventions known to be successful.

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  • The initiation of medications in medicine is well-supported by clinical guidelines and trial evidence, but there is a significant lack of focus on how to safely discontinue these medications after long-term use.
  • There's limited guidance for healthcare providers on deprescribing cardiovascular medications, leading to concerns about potential adverse effects when stopping treatment.
  • The authors suggest that certain cardiovascular medications should generally be discontinued to prevent harm, avoid ineffectiveness, and consider better alternatives.
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Background: Strategies to reach out-of-hospital cardiac arrests (called cardiac arrest) in residential areas and reduce disparities in care and outcomes are warranted. This study investigated incidences of cardiac arrests in public housing areas.

Methods: This register-based cohort study included cardiac arrest patients from Amsterdam (the Netherlands) from 2016 to 2021, Copenhagen (Denmark) from 2016 to 2021, and Vienna (Austria) from 2018 to 2021.

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Background: Intravenous administration of azithromycin has been linked to severe hypotension in some case reports in the past. We report a further case of profound shock requiring excessive use of vasopressors and extracorporeal membrane oxygenation (ECMO).

Case Summary: An 18-year-old Caucasian male was admitted due to fulminant myocarditis and signs of cardiogenic shock.

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Fulminant myocarditis (FM) constitutes a severe and life-threatening form of acute cardiac injury associated with cardiogenic shock. The condition is characterised by rapidly progressing myocardial inflammation, leading to significant impairment of cardiac function. Due to the acute and severe nature of the disease, affected patients require urgent medical attention to mitigate adverse outcomes.

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