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Evaluation of ST-segment and T-wave changes associated with NSTE-ACS in patients with RBBB: a nested case-control study design.
Intern Emerg Med
January 2025
Faculty of Medicine, Department of Emergency Medicine, Akdeniz University, Antalya, Turkey.
Patients presenting with suspected acute coronary syndrome (ACS) in the emergency department (ED) require rapid and accurate electrocardiographic (ECG) evaluation. This study aims to assess conventional ECG markers for diagnosing non-ST-elevation ACS (NSTE-ACS) in patients with chest discomfort and right bundle branch block (RBBB). A nested case-control design was employed to compare patients with RBBB admitted to the ED for suspected cardiac ischemia, focusing on those who developed NSTE-ACS versus those who did not.
View Article and Find Full Text PDFElectrocardiographic marker of ventricular action potential triangulation (the simulation study).
J Electrocardiol
December 2024
Physiology Unit, Department of Pre-Clinical Sciences, Faculty of Medical Sciences, The University of the West Indies, St. Augustine Campus, Mount Hope Hospital, Building 35, Uriah Butler Highway, Trinidad and Tobago.
Background: The aim of this simulation was to examine the utility of a novel ECG-based index of cardiac action potential (AP) triangulation, the Tstart-to-Tpeak (TsTp) interval-to-JTstart (JTs) interval ratio, for assessment of changes in AP profile imposed through variations in the duration of the plateau phase and the phase 3 repolarization.
Methods: ECGs were simulated using a realistic rabbit model based on experimental data. The AP plateau was measured at APD30, and the phase 3 was assessed as APD90-to-APD30 difference (AP durations at 90 % and 30 % repolarization, respectively).
Outcomes and Impact of Device Iterations in Mitral Valve Transcatheter Edge-to-Edge Repair: The REPAIR Study.
JACC Cardiovasc Interv
November 2024
Department of Cardiology, Heart Center, Faculty of Medicine, University of Cologne, Cologne, Germany. Electronic address:
Background: The PASCAL P10 system for mitral valve transcatheter edge-to-edge repair has undergone iterations, including introduction of the narrower Ace implant and the Precision delivery system.
Objectives: The study sought to evaluate outcomes and the impact of PASCAL mitral valve transcatheter edge-to-edge repair device iterations.
Methods: The REPAIR (REgistry of PAscal for mltral Regurgitation) study is an investigator-initiated, multicenter registry including consecutive patients with mitral regurgitation (MR) treated from 2019 to 2024.
Stress classification with in-ear heartbeat sounds.
Comput Biol Med
December 2024
École de technologie supérieure, 1100 Notre-Dame St W, Montreal, H3C 1K3, Quebec, Canada; Centre for Interdisciplinary Research in Music Media and Technology (CIRMMT), 527 Rue Sherbrooke O #8, Montréal, QC H3A 1E3, Canada. Electronic address:
Background: Although stress plays a key role in tinnitus and decreased sound tolerance, conventional hearing devices used to manage these conditions are not currently capable of monitoring the wearer's stress level. The aim of this study was to assess the feasibility of stress monitoring with an in-ear device.
Method: In-ear heartbeat sounds and clinical-grade electrocardiography (ECG) signals were simultaneously recorded while 30 healthy young adults underwent a stress protocol.
The Value of P-Wave Parameters Changes in Predicting Catheter Ablation Outcomes for Paroxysmal Atrial Fibrillation.
Ann Noninvasive Electrocardiol
January 2025
Department of Cardiology, University Hospitals of Leicester NHS Trust, Glenfield Hospital, Leicester, UK.
Background: Pulmonary vein isolation (PVI) is the most promising management method for paroxysmal atrial fibrillation (PAF). The P wave in the electrocardiogram (ECG) represents atrial depolarization. This study aims to correlate P-wave parameters after PVI with outcomes.
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