Results 41 to 50 of about 1,860 (159)

Analysis of the High-Frequency Content in Human QRS Complexes by the Continuous Wavelet Transform: An Automatized Analysis for the Prediction of Sudden Cardiac Death

Sensors, 2018
Background: Fragmentation and delayed potentials in the QRS signal of patients have been postulated as risk markers for Sudden Cardiac Death (SCD). The analysis of the high-frequency spectral content may be useful for quantification.
Daniel García Iglesias, Nieves Roqueñi Gutiérrez, Francisco Javier De Cos, David Calvo   +3 more
doaj   +1 more source

Methodological Pathways for Circular Economy in Energy and Environmental Studies: A Structured Review Toward Sustainable Development

Business Strategy and the Environment, EarlyView.
ABSTRACT The circular economy (CE) has become a major focus in energy and environmental (E&E) research, as it helps advance sustainable development, improve resource efficiency and alleviate environmental pressure. Even so, the literature is still fragmented, particularly in the CE themes it explores, the levels of analysis it adopts and the methods ...
Jahira Debbarma, Mohamed Shrief, Vikas Kumar   +2 more
wiley   +1 more source

Relationship between QRS characteristics and delayed-enhancement cardiac magnetic resonance in patients with ischemic cardiomyopathy

Artery Research, 2014
Background: We explored the relationship between QRS characteristics and myocardial phenotype by delayed-enhancement cardiac magnetic resonance (DE-CMR) in patients with coronary heart disease (CHD). Methods and results: Eighty five consecutive patients
Gaston A. Rodriguez-Granillo, Carlos Ingino, Carolina Parada-Villavicencio, Pedro Lylyk   +3 more
doaj   +1 more source

Clinical utility of 12‐lead electrocardiogram in evaluating heart disease in patients with muscular dystrophy: Assessment of left ventricular hypertrophy, conduction disease, and cardiomyopathy

Annals of Noninvasive Electrocardiology, 2021
Introduction Heart disease remains a leading cause of mortality in patients with muscular dystrophy (MD), and cardiac assessment by standard imaging modalities is challenging due to the prominence of physical limitations.
Anish Nikhanj, Haran Yogasundaram, Shane Kimber, Zaeem A. Siddiqi, Gavin Y. Oudit   +4 more
doaj   +1 more source

Progression and prognostic significance of electrocardiographic findings in patients with cardiac amyloidosis

ESC Heart Failure, Volume 12, Issue 2, Page 809-818, April 2025.
Abstract Aims This study aimed to evaluate the change of the main electrocardiographic (ECG) characteristics and their prognostic role across the main subtypes of cardiac amyloidosis [light‐chain amyloidosis (AL) and hereditary (ATTRv) and wild‐type transthyretin amyloidosis (ATTRwt)].
Alessia Argirò, Mattia Zampieri, Carlotta Mazzoni, Carlo Fumagalli, Michela Baccini, Alessandra Mattei, Alberto Cipriani, Laura De Michieli, Aldostefano Porcari, Gianfranco Sinagra, Marco Merlo, Giacomo Tini, Beatrice Musumeci, Domitilla Russo, Pier Filippo Vianello, Marco Canepa, Roberto Licordari, Gianluca di Bella, Claudio Rapezzi, Federico Perfetto, Francesco Cappelli   +20 more
wiley   +1 more source

Ventricular Depolarization Abnormalities and Their Role in Cardiac Risk Stratification — A Narrative Review

Reviews in Cardiovascular Medicine
Ventricular depolarization refers to the electrical activation and subsequent contraction of the ventricles, visible as the QRS complex on a 12-lead electrocardiogram (ECG).
Maarten Blondeel, Tomas Robyns, Rik Willems, Bert Vandenberk   +3 more
doaj   +1 more source

QRS-fragmentation: Case report and review of the literature

Archivos de Cardiología de México, 2018
Fragmentation of QRS complex (QRSf) is an easily evaluable, non-invasive electrocardiographic parameter that represents depolarisation anomalies and has been associated with several adverse outcomes, such as sudden death, fibrosis, arrhythmic burden, and a worse prognosis in different conditions, including coronary artery disease (CAD).
Edgar Illescas-González, Diego Araiza-Garaygordobil, Jorge Daniel Sierra Lara, Aristoteles Ramirez-Salazar, Carlos Sierra-Fernández, Erick Alexanderson-Rosas   +5 more
openaire   +2 more sources

Monitoring and assessment for obstructive sleep apnea

FlexMat, EarlyView.
This review systematically classifies Obstructive Sleep Apnea (OSA) monitoring indicators into three categories: physical, biochemical, and electrophysiological indicators, and lists several methods for each category. Abstract Obstructive sleep apnea (OSA) is a common chronic sleep‐disordered breathing disease characterized by recurrent upper airway ...
Yaowen Xu, Feifei Lin, Shujiao Chen, Zhen You, Shujing Zhu, Weiwei Zhao, Qiang Zhao   +6 more
wiley   +1 more source

Beyond Traditional Screening: The Future of Heart Failure Detection With Biomarkers and AI

iNew Medicine, EarlyView.
Advancing HF Screening: Integrating Technology and Risk Factors Across Eras. This diagram provides a comprehensive review of the historical developments and projected trends of heart failure (HF) screening methodologies, with the prevalent risk factors for HF depicted at the base.
Xiaofeng Fang, Yinbo Xu, Yiting Zhao, Liuyi Li, Zhengyi Cheng, Zhongqi Zhang, Yuhang Luo, Qiaoling Liu, Chen Gong, Shichun Shen   +9 more
wiley   +1 more source

Artificial intelligence in out‐of‐hospital sleep monitoring: Bridging polysomnography and wearable signals

Sleep Research, EarlyView.
Abstract Polysomnography (PSG), the reference standard for sleep assessment, has limited scalability for large‐scale screening, driving the development of wearable and unobtrusive monitors. However, the physiological signals these devices capture are physiologically correlated with PSG channels but are not completely equivalent.
Jing Yan, Zixi Huang, Haowen Zeng, Hanrong Cheng, Dongxing Zhao, Yuxi Luo   +5 more
wiley   +1 more source