Results 41 to 50 of about 19,907 (261)

A Dual‐Modal Wearable PPG Smartwatch with AI‐Enhanced Correction for High‐Accuracy and Continuous AF Burden Assessment

Advanced Science, EarlyView.
ABSTRACT Atrial fibrillation (AF) increases the risk of stroke and heart failure, yet accurate quantification of AF burden in daily life remains difficult. Although smartwatch photoplethysmography (PPG) supports continuous monitoring, complex rhythms and signal noise can impair burden estimation.
Song Zuo, Jinglei Wang, Xin Wang, Han Feng, Yize Zhao, Fadong Li, Shaobin Wei, Le Zhou, Zixu Zhao, Songjie Chen, Xiangyi Kong, Jue Wang, Liu He, Shijun Xia, Xin Li, Junmeng Zhang, Xiaoxia Liu, Xueyuan Guo, Ning Zhou, Songnan Li, Chenxi Jiang, Ribo Tang, Caihua Sang, Deyong Long, Xin Du, Jianzeng Dong, Wenwu Zhu, Changsheng Ma   +27 more
wiley   +1 more source

Trends in Cardiac Pacemaker Batteries

Indian Pacing and Electrophysiology Journal, 2004
Batteries used in Implantable cardiac pacemakers-present unique challenges to their developers and manufacturers in terms of high levels of safety and reliability.
Venkateswara Sarma Mallela, V. Ilankumaran, N.Srinivasa Rao   +2 more
doaj  

Endocardite de dispositivos, revisão com base na experiência de um centro

Revista Portuguesa de Cardiologia, 2016
Resumo: Introdução: O número de infeções associadas com dispositivos cardíacos tem aumentado exponencialmente ao longo dos anos. Estas infeções associam‐se a elevada morbimortalidade.
Andreia Fernandes, Miryan Cassandra, Joana Trigo, José Nascimento, Maria Carmo Cachulo, Rui Providência, Marco Costa, Lino Gonçalves   +7 more
doaj   +1 more source

Inductive Power Transfer Link at 13.56 MHz for Leadless Cardiac Pacemakers

Energies, 2021
Inductive power links are most viable for the long-term powering of cardiac pacemakers. Designing an inductive power link without surpassing the specific absorption rate (SAR) for modern leadless cardiac pacemakers (LCPs) remains a challenging task ...
Krithikaa Mohanarangam, Yellappa Palagani, Kunhee Cho, Jun-Rim Choi   +3 more
doaj   +1 more source

A Novel Pak1 Activator Ameliorates ER Stress for HFpEF Therapy

Advanced Science, EarlyView.
Chronic metabolic stress is a major contributor to HFpEF progression. Under prolonged metabolic stress, Pak1 activity becomes impaired, contributing to disrupted ER proteostasis, cardiomyocyte apoptosis, fibrosis, and diastolic dysfunction. Mechanistically, Pak1 overexpression activates the ERK1/2–MNK1–eIF4E signaling axis, promotes translational ...
Honglin Xu, Hongyuan Zhang, Tayyiba Azam, Susanne S. Hille, Yingjuan Liu, Min Zi, Jiaqing Lang, He Yu, Yujia Cao, Bernard D. Keavney, Tamer M. A. Mohamed, Jessica M. Miller, Riham R. E. Abouleisa, Ming Xu, Elizabeth J. Cartwright, Oliver J. Müller, Ming Lei, Xin Wang   +17 more
wiley   +1 more source

Implantable Cardiac Pacemakers – 50 Years from the First Implantation

Zdravniški Vestnik, 2010
Background:There are over 4 million people around the world living with implanted cardiac devices. Modern pacemakers are small and light medical devices, which are implanted under local anaesthesia and provide therapy for a broad range of cardiac ...
Ratko Magjarević, Božidar Ferek-Petrić   +1 more
doaj  

Fully Implantable Wireless Cardiac Pacing and Sensing System Integrated with Hydrogel Electrodes

Advanced Science
Cardiac pacemakers play a crucial role in arrhythmia treatment. Existing devices typically rely on rigid electrode components, leading to potential issues such as heart damage and detachment during prolonged cardiac motion due to the mechanical mismatch ...
Zhiqiang Chang, Bingfang Wang, Qinjuan Ren, Jianfang Nie, Bihan Guo, Yuhan Lu, Xinxin Lu, Ya Zhang, Daizong Ji, Yingying Lv, Menahem Y. Rotenberg, Yin Fang   +11 more
doaj   +1 more source

High‐Resolution Deep Learning Dixon Magnetic Resonance Imaging of the Sacroiliac Joints Is Noninferior to Standard Magnetic Resonance Imaging in Patients With Suspected Axial Spondyloarthritis

Arthritis &Rheumatology, EarlyView.
Objective To compare the multisequence standard magnetic resonance imaging (sMRI) protocol of the sacroiliac joints with a single high‐resolution deep learning–reconstructed Dixon sequence (DL‐Dixon) in patients with suspected axial spondyloarthritis (axSpA). Methods Seventy‐six patients with chronic low back pain and suspected axSpA underwent clinical,
Dominik Deppe, Mariam Koka, Fabian Proft, Sevtap Tugce Ulas, Kay‐Geert Hermann, Denis Poddubnyy, Mikhail Protopopov, Henriette Baum, Hildrun Haibel, Mehrgan Shahryari, Valeria Rios Rodriguez, Jens Vogel‐Claussen, Torsten Diekhoff   +12 more
wiley   +1 more source

External Acoustic Meatus Approach for Ultrasonographic Evaluation of the Temporomandibular Joint: An Anatomical Validation and Proof‐of‐Concept Study

Clinical Anatomy, EarlyView.
ABSTRACT Temporomandibular disorders (TMD) represent a public health problem, affecting 31% of adults and the elderly and 11% of children and adolescents. Interest is growing in using ultrasound to evaluate the temporomandibular joint (TMJ). However, researchers need to standardize a reliable method.
Rossella Alberti, Wilson Astudillo‐Rozas, Joe Iwanaga, Andrea Castellani, Corrado Paganelli, Tomas Domingo Rufes, Xavier García Eroles, Luca Ferrari, Iván Valdivia‐Gandur, Victòria Tallón‐Walton, María Cristina Manzanares Cespedes   +10 more
wiley   +1 more source

Incidence and Costs Related to Lead Damage Occurring Within the First Year After a Cardiac Implantable Electronic Device Replacement Procedure

Journal of the American Heart Association: Cardiovascular and Cerebrovascular Disease, 2016
BackgroundInadvertent damage to leads for transvenous pacemakers, implantable cardioverter‐defibrillators, and cardiac resynchronization therapy defibrillators is an important complication associated with generator‐replacement procedures.
Christine I. Nichols, Joshua G. Vose, Suneet Mittal   +2 more
doaj   +1 more source