Publications by authors named "Pedro Lopez-Ayala"

Background: The possible clinical utility of endocan, a novel inflammatory biomarker involved in the initiation and progression of atherosclerosis, is largely unknown. We aimed to evaluate its diagnostic and prognostic performance in chest pain patients presenting to the emergency department (ED).

Methods: We prospectively enrolled patients presenting with suspected myocardial infarction (MI) to the ED in an international multicenter study.

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Background: In patients with dextro-transposition of the great arteries, cardiovascular interventions and complications are common after the arterial switch operation (ASO). While complex anatomy-typically defined by ventricular septal defects (VSDs)-is often linked to these outcomes, the independent role of aortic coarctation (CoA) remains unclear.

Methods: We analysed 502 adults from the EPOCH (European collaboration for Prospective Outcome research in Congenital Heart disease)-ASO multicentre registry (median age 25.

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Aims: Among cancer patients presenting with acute dyspnoea, the prevalence of acute heart failure (AHF), resource use and diagnostic accuracy of natriuretic peptides remain unknown. This study aimed to address these knowledge gaps.

Methods And Results: Patients presenting with acute dyspnoea to the emergency department (ED) were prospectively enrolled in a multicentre diagnostic study.

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Background: Self-reported health-related quality of life is an established prognostic tool in stable outpatients. However, its prognostic relevance in patients presenting with an acute onset of symptoms such as acute dyspnoea is largely unknown.

Methods: This major unmet clinical need was addressed in a secondary analysis of a prospective study, enrolling patients presenting with acute dyspnoea to the emergency departments of two university hospitals in Switzerland.

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Background: The diagnostic performance of high-sensitivity cardiac troponin T/I (hs-cTnT/I) and the efficacy of the European Society of Cardiology (ESC) 0/1-h hs-cTnT/I algorithms for the early diagnosis of non-ST-elevation myocardial infarction are lower in cancer patients.

Objectives: The authors aimed to derive new cutoffs for ESC 0/1-h hs-cTnT/I algorithms optimized for use in patients with active or past cancer.

Methods: Patients presenting with suspected non-ST-elevation myocardial infarction to the emergency department enrolled in an international multicenter study were analyzed.

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Introduction And Objectives: It is unclear whether applying sex-specific rather than uniform upper reference limits (URLs) for high-sensitivity cardiac troponin I (hs-cTnI) improves diagnostic equity between women and men with suspected myocardial infarction (MI). We compared the diagnostic performance of these 2 approaches.

Methods: In an international, prospective, multicenter study of patients presenting with suspected MI, the final diagnosis was centrally adjudicated twice by 2 independent cardiologists using all available information, including serial measurements of hs-cTnI-Architect, once using the uniform URL (26.

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Background: Possible misdiagnosis of acute myocardial infarction (AMI) may occur due to inappropriate upper limit of normal (ULN) for cardiac troponin and has the potential to harm patients. In this observational international multicenter study, we aimed to assess to what extent the novel hs-cTn-assays are affected.

Methods: A total of 6646 patients presenting with suspected AMI to the emergency department were enrolled.

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Introduction And Objectives: To identify phenotypes in heart failure with preserved ejection fraction (HFpEF), compare mortality, and investigate whether treatments have different effects according to phenotype.

Methods: We performed a secondary analysis of 8161 patients with HFpEF included in Spanish cardiology (INCLIVA), internal medicine (RICA), and emergency (EAHFE) registries. Phenotypic clusters based on 16 baseline characteristics were identified using latent class analysis.

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Aims: Among individuals presenting to the emergency department (ED) with chest pain, clinical uncertainty surrounds the appropriate identification of non-myocardial infarction (MI) individuals who would most benefit from objective functional/anatomical testing (e.g. imaging).

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Background: High-sensitivity cardiac troponin tests have enhanced early myocardial infarction diagnosis, yet many patients still land in the observe zone (OZ). Guidelines suggest a 3-hour troponin measurement for those in the European Society of Cardiology (ESC) 0/1 hour-algorithm's OZ, but evidence on extended troponin testing times and their impact on diagnostic accuracy and outcomes remains sparse.

Methods: Patients with suspected acute coronary syndrome were consecutively enrolled in a single-centre observational study.

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Article Synopsis
  • The study investigates the impact of peri-procedural myocardial injury (PPMI) after transcatheter aortic valve implantation (TAVI) using the updated VARC-3 criteria compared to the previous VARC-2 criteria.
  • High-sensitivity cardiac troponin T (hs-cTnT) levels were assessed pre- and post-procedure, with elevated baseline levels being significant predictors of all-cause mortality and major cardiac adverse events within one year post-TAVI.
  • The findings indicate that VARC-3 criteria offered better prognostic insights regarding patient outcomes, with patients meeting VARC-3 criteria experiencing higher mortality rates than those meeting VARC-2 criteria.
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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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Objectives: To determine the prevalence, characteristics, timing of implementation and prognosis of patients with left bundle branch block (LBBB) and acute heart failure (AHF) treated with cardiac resynchronization therapy (CRT) in a real-life registry.

Methods: We analysed the characteristics of patients with AHF and LBBB at the time of inclusion in the EAHFE (Epidemiology Acute Heart Failure Emergency) cohort to determine the indication for CRT, the timing of implementation and its impact on 10-year all-cause mortality.

Results: 729 patients with a median age of 82 years and there was a high burden of comorbidities and functional dependence.

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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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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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Introduction And Objectives: The role of N-terminal pro-B-type natriuretic peptide (NT-proBNP) in the risk prediction of patients with systemic right ventricles (sRV) is not well defined. The aim of this study was to analyze the prognostic value of NT-proBNP in patients with an sRV.

Methods: The prognostic value of NT-proBNP was assessed in 98 patients from the SERVE trial.

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Objective: To investigate the association of the addition of thiazide diuretic on top of loop diuretic and standard of care with short-term outcomes of patients discharged after surviving an acute heart failure (AHF) episode.

Methods: This is a secondary analysis of 14,403 patients from three independent cohorts representing the main departments involved in AHF treatment for whom treatment at discharge was recorded and included loop diuretics. Patients were divided according to whether treatment included or not thiazide diuretics.

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Background: The determinants and prognostic value of high-sensitivity cardiac troponin T (hs-cTnT) among patients with a systemic right ventricle are largely unknown.

Methods And Results: Ninety-eight patients from the randomized controlled SERVE (Effect of Phosphodiesterase-5 Inhibition With Tadalafil on Systemic Right Ventricular Size and Function) trial were included. The correlation between baseline hs-cTnT concentrations and biventricular volumes and function quantified by cardiac magnetic resonance or cardiac multirow detector computed tomography was assessed by adjusted linear regression models.

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Background: The rapid and reliable differentiation of myocardial infarction (MI) due to atherothrombosis (T1MI) from MI due to supply-demand mismatch (T2MI) or acute myocardial injury is of major clinical relevance due to very different treatments, but still a major unmet clinical need. This study aimed to investigate whether copeptin, a stress hormone produced in the hypothalamus, helps to differentiate between T1MI versus T2MI or injury.

Methods: In a retrospective analysis, 1271 unselected consecutive patients presenting with symptoms suggestive of MI to the emergency department were evaluated.

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Synopsis of recent research by authors named "Pedro Lopez-Ayala"

  • - Pedro Lopez-Ayala's recent research focuses on acute heart failure (AHF) management and diagnostic advancements, particularly emphasizing the application of cardiac resynchronization therapy (CRT) and the use of digoxin in various patient populations.
  • - His studies evaluate the prevalence and outcomes associated with CRT in patients with left bundle branch block, the impact of digoxin initiation post-AHF, and the efficacy of point-of-care troponin assays for diagnosing myocardial infarction.
  • - Additionally, Lopez-Ayala investigates innovative biomarkers, such as copeptin and NT-proBNP, in risk stratification and diagnostic challenges related to myocardial infarction, contributing to improving patient management strategies in cardiology.