Publications by authors named "Ivo Strebel"

Background And Aim: The possible clinical utility of Bone Morphogenetic Protein 10 (BMP10), a novel atrial-specific biomarker, is incompletely understood. We aimed to test the hypothesis that BMP10 has high diagnostic and prognostic accuracy in patients presenting with acute dyspnea.

Methods And Results: In a multicenter diagnostic study, BMP10, high-sensitivity cardiac troponin T (hs-cTnT), and N-terminal pro-B-type natriuretic peptide (NT-proBNP) concentrations were determined in patients presenting with acute dyspnea to the emergency department.

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Article Synopsis
  • Pulmonary transit time (PTT) measures how long it takes blood to move from the right to the left ventricle and can indicate heart failure-related issues like diastolic dysfunction (DD) and mitral valve regurgitation (MVR).
  • In a study of 83 patients using stress perfusion cardiovascular magnetic resonance (CMR) scans, higher PTT and normalized PTT (nPTT) were linked to more severe cases of DD and MVR.
  • PTT values under 8 seconds can effectively rule out DD and MVR with a 70% probability, highlighting PTT as a useful and accessible measure for evaluating patients' heart conditions.
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Digoxin is commonly used to treat acute heart failure (AHF), especially in patients with concurrent atrial fibrillation (AF). Nonetheless, there is little consensus about in which patients digoxin should be given, the proper time for digoxin initiation, and whether digoxin initiation is associated with improved outcomes. We investigated factors related to digoxin initiation after an episode of AHF and whether patients receiving digoxin presented better short-term outcomes.

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Background: Point-of-care (POC) high-sensitivity cardiac troponin assays may further accelerate the diagnosis of myocardial infarction (MI).

Objectives: This study sought to assess the clinical and analytical performance of the novel high-sensitivity cardiac troponin I (hs-cTnI)-SPINCHIP POC test.

Methods: Adult patients presenting with acute chest discomfort to the emergency department were enrolled in an international, diagnostic, multicenter study.

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Article Synopsis
  • Intravenous digoxin is commonly used in emergency departments to treat acute heart failure, particularly in patients experiencing rapid atrial fibrillation, but concerns about its risks in older patients and those with kidney issues exist.
  • The study aimed to determine if digoxin influences 30-day mortality rates in patients with acute heart failure, taking into account factors like age, kidney function, and potassium levels.
  • The analysis revealed no significant difference in mortality rates between patients treated with digoxin and those who were not, despite a high median age and serious health conditions among participants.
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Aims: We hypothesized that the current gold standard for risk stratification of patients with acute heart failure (AHF), the Multiple Estimation of risk based on the Emergency department Spanish Score In patients with AHF (MEESSI-AHF) risk score, can be further improved by adding systemic inflammation as quantified by C-reactive protein (CRP).

Methods And Results: In a prospective multicentre diagnostic study (BASEL V), AHF was centrally adjudicated by two independent cardiologists. The MEESSI-AHF risk score was calculated using an established reduced and recalibrated model containing 12 independent risk factors.

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Background: The myocardial-ischaemic-injury-index (MI) is a novel machine learning algorithm for the early diagnosis of type 1 non-ST-segment elevation myocardial infarction (NSTEMI). The performance of MI, both when using early serial blood draws (eg, at 1 h or 2 h) and in direct comparison with guideline-recommended algorithms, remains unknown. Our aim was to externally validate MI and compare its performance with that of the European Society of Cardiology (ESC) 0/1h-algorithm.

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Functionally relevant coronary artery disease (fCAD) can result in premature death or nonfatal acute myocardial infarction. Its early detection is a fundamentally important task in medicine. Classical detection approaches suffer from limited diagnostic accuracy or expose patients to possibly harmful radiation.

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Article Synopsis
  • * Among 1,152 patients studied, those with normotensive acute heart failure exhibited significantly higher levels of hemodynamic stress and heart cell injury markers compared to those who were hypertensive.
  • * The findings indicated that normotensive patients had a higher risk of mortality, particularly if their biomarker levels were elevated, which was confirmed in a separate cohort of 324 patients.
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Introduction: Cardiac complications after major noncardiac surgery are common and associated with high morbidity and mortality. How preoperative use of beta-blockers may impact perioperative cardiac complications remains unclear.

Methods: In a multicentre prospective cohort study, preoperative beta-blocker use was ascertained in consecutive patients at elevated cardiovascular risk undergoing major noncardiac surgery.

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Background: Atrial fibrillation (AF) and heart failure frequently coexist. Prediction of left ventricular ejection fraction (LVEF) recovery after catheter ablation (CA) for AF remains difficult.

Objective: The purpose of this study was to evaluate the value of biomarkers, alone and in combination with the Antwerp score, to predict LVEF recovery after CA for AF.

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Aims: We aimed to test the hypothesis if combining coronary artery calcium score (Ca-score) as a quantitative anatomical marker of coronary atherosclerosis with high-sensitivity cardiac troponin as a quantitative biochemical marker of myocardial injury provided incremental value in the detection of functionally relevant coronary artery disease (fCAD) and risk stratification.

Methods And Results: Consecutive patients undergoing myocardial perfusion single-photon emission computed tomography (MPS) without prior CAD were enrolled. The diagnosis of fCAD was based on the presence of ischaemia on MPS and coronary angiography; fCAD was centrally adjudicated in the diagnostic and prognostic domain.

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Background: Infranodal conduction disorders are common after transcatheter aortic valve replacement (TAVR). Risk factors are incompletely understood.

Objective: The purpose of this study was to assess the impact of valve implantation depth and calcium burden of the device landing zone on infranodal conduction intraprocedure pre- and post-TAVR.

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Article Synopsis
  • CoDE-ACS is a machine learning-based clinical decision support tool designed to assess the likelihood of myocardial infarction (MI) using cardiac troponin measurements at various time points.
  • A study involving 4,105 patients across multiple countries found that CoDE-ACS effectively identified a high percentage of low-probability cases for MI, surpassing the performance of established guidelines such as the European Society of Cardiology pathways.
  • The tool maintained a negative predictive value of 99.7% across different time points, suggesting its accuracy in ruling out MI and its potential to improve diagnostic processes in acute coronary syndrome evaluations.
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Aims: It has been demonstrated that several cardiac pathologies, including myocardial ischaemia, can be detected using smartwatch electrocardiograms (ECGs). Correct placement of bipolar chest leads remains a major challenge in the outpatient population.

Methods And Results: In this feasibility trial, we propose an augmented reality-based smartphone app that guides the user to place the smartwatch in predefined positions on the chest using the front camera of a smartphone.

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Background: Self-reported exercise capacity is a well-established prognostic measure in stable ambulatory patients with cardiac and pulmonary disease.

Objectives: The authors aimed to directly compare the prognostic accuracy of quantified self-reported exercise capacity using the Duke Activity Status Index (DASI) with the established objective disease-severity marker B-type natriuretic peptide (BNP) in patients presenting with acute dyspnea to the emergency department.

Methods: The DASI was obtained in a prospective multicenter diagnostic study recruiting unselected patients presenting with acute dyspnea to the emergency department.

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Aims: The presence of accompanying dyspnoea is routinely assessed and common in patients presenting with acute chest pain/discomfort to the emergency department (ED). We aimed to assess the association of accompanying dyspnoea with differential diagnoses, diagnostic work-up, and outcome.

Methods And Results: We enrolled patients presenting to the ED with chest pain/discomfort.

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Purpose: The objective of this study was to quantify secondary prevention care by creating a secondary prevention benchmark (2PBM) score for patients undergoing ambulatory cardiac rehabilitation (CR) after acute coronary syndrome (ACS).

Methods: In this observational cohort study, 472 consecutive ACS patients who completed the ambulatory CR program between 2017 and 2019 were included. Benchmarks for secondary prevention medication and clinical and lifestyle targets were predefined and combined in the comprehensive 2PBM score with maximum 10 points.

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Background: Multiple smart devices capable to detect atrial fibrillation (AF) are presently available. Sensitivity and specificity for the detection of AF may differ between available smart devices, and this has not yet been adequately investigated.

Objectives: The aim was to assess the accuracy of 5 smart devices in identifying AF compared with a physician-interpreted 12-lead electrocardiogram as the reference standard in a real-world cohort of patients.

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Study Objective: The diagnostic performance of T-wave amplitudes for the detection of myocardial infarction is largely unknown. We aimed to address this knowledge gap.

Methods: T-wave amplitudes were automatically measured in 12-lead ECGs of patients presenting with acute chest discomfort to the emergency department within a prospective diagnostic multicenter study.

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Aims: Pulmonary transit time (PTT) is the time blood takes to pass from the right ventricle to the left ventricle via pulmonary circulation. We aimed to quantify PTT in routine cardiovascular magnetic resonance imaging perfusion sequences. PTT may help in the diagnostic assessment and characterization of patients with unclear dyspnoea or heart failure (HF).

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Aims: Systemic inflammation may be central in the pathophysiology of acute heart failure (AHF). We aimed to assess the possible role of systemic inflammation in the pathophysiology, phenotyping, and risk stratification of patients with AHF.

Methods And Results: Using a novel Interleukin-6 immunoassay with unprecedented sensitivity (limit of detection 0.

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In 2019 the European Society of Cardiology (ESC) lowered the target values for low-density lipoprotein cholesterol (LDL-C) from <1.8 mmol/L to <1.4 mmol/L for secondary prevention of cardiovascular disease (CVD).

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To investigate the relationship of ambient temperature and atmospheric pressure (AP) at patient discharge after an episode of acute heart failure (AHF) with very early post-discharge adverse outcomes. We analyzed 14,656 patients discharged after an AHF episode from 26 hospitals in 16 Spanish cities. The primary outcome was the 7-day post-discharge combined adverse event (emergency department -ED- revisit or hospitalization due to AHF, or all-cause death), and secondary outcomes were these three adverse events considered individually.

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