Results 51 to 60 of about 208,986 (273)

The National Survey of Cardiac Pacemakers and Cardioverter Defibrillators

Journal of Tehran University Heart Center, 2006
Background: Permanent pacemakers provide effective relief of symptoms and are life-saving in patients with symptomatic heart block. Implantable cardioverter defibrillators (ICD) are also increasingly recognized as life-saving tools in various groups of ...
Reza Poorbahador, Bijan Shad, Saeed Oraii, Mahmood Eftekharzadeh, Mehrdad Mirmasoumi, Alireza Ghorbani Sharif, Mohammad Kazem Taraghi, Mehdi Hasanzadeh, Hassan Javadzadegan, Mohammad Javad Zibaeenejad, Jalal Zamani, Gholamrerza Shafieian, Mitra Azadi, Mohammad Hosein Dashti, Keyghobad Behdin, Shahroo Sanii, Shahrbanoo Davoodabadi   +16 more
doaj  

Fasciculoventricular bypass tracts: Electrocardiographic and electrophysiologic features

Journal of Arrhythmia, 2020
Fasciculoventricular accessory pathways are rare variants of preexcitation. The differential diagnosis of fasciculoventricular accessory pathways from other preexcitation variants can be challenging.
Dimitrios Asvestas, George Bazoukis, Panagiotis Mililis, Stelios Dragasis, Athanasia Megarisiotou, Konstantinos Vlachos, Antonios Sideris, Michael Efremidis, Konstantinos P. Letsas   +8 more
doaj   +1 more source

Interpreting Deep Neural Networks for Single-Lead ECG Arrhythmia Classification [PDF]

arXiv, 2020
Cardiac arrhythmia is a prevalent and significant cause of morbidity and mortality among cardiac ailments. Early diagnosis is crucial in providing intervention for patients suffering from cardiac arrhythmia. Traditionally, diagnosis is performed by examination of the Electrocardiogram (ECG) by a cardiologist. This method of diagnosis is hampered by the
arxiv  

EKGNet: A 10.96μW Fully Analog Neural Network for Intra-Patient Arrhythmia Classification [PDF]

arXiv, 2023
We present an integrated approach by combining analog computing and deep learning for electrocardiogram (ECG) arrhythmia classification. We propose EKGNet, a hardware-efficient and fully analog arrhythmia classification architecture that archives high accuracy with low power consumption.
arxiv  

A Novel Protein NAB1‐356 Encoded by circRNA circNAB1 Mitigates Atrial Fibrillation by Reducing Inflammation and Fibrosis

Advanced Science, EarlyView.
The circRNA circNAB1 is downregulated in AF patient. Silencing circNAB1 promotes collagen deposition and inflammation, whereas overexpression reduces AF susceptibility. circNAB1 encodes the protein NAB1 356 that interacts with EGR1 to mitigate fibrosis and inflammation.
William W Du, Muhammad Rafiq, Hui Yuan, Xiangmin Li, Sheng Wang, Jun Wu, Jinfeng Wei, Ren‐Ke Li, Huiming Guo, Burton B Yang   +9 more
wiley   +1 more source

Prognostic value of global longitudinal strain in hypertrophic cardiomyopathy: A systematic review and meta‐analysis

Clinical Cardiology, Volume 45, Issue 12, Page 1184-1191, December 2022., 2022
Abstract Background As previously reported, impairment of left ventricular global longitudinal strain (LVGLS) is associated with myocardial fibrosis, arrhythmias, and heart failure in hypertrophic cardiomyopathy (HCM) patients. Hypothesis This study aimed to estimate the association between LVGLS measured by echocardiography and major adverse ...
Ying Yang, Dong Wu, Hui Wang, Yanting Wang   +3 more
wiley   +1 more source

P21‐Activated Kinase 2 as a Novel Target for Ventricular Tachyarrhythmias Associated with Cardiac Adrenergic Stress and Hypertrophy

Advanced Science, EarlyView.
Ca2+/calmodulin‐dependent kinase II (CaMKII) activation is likely driven by oxidative stress, particularly excessive reactive oxygen species (ROS) production. This study identifies P21‐activated kinase 2 (Pak2) as a novel regulator of ROS‐induced CaMKII activation and abnormal Ca2⁺ dynamics in acute adrenergic and chronic pressure‐overload stressed ...
Tao Li, Ting Liu, Yan Wang, Yangpeng Li, Leiying Liu, James Bae, Yu He, Xian Luo, Zhu Liu, Tangting Chen, Xianhong Ou, Dan Zhang, Huan Lan, Juyi Wan, Yan Wei, Fang Zhao, Xin Wang, Tao Li, Christopher L.‐H. Huang, Chunxiang Zhang, Ming Lei, Xiaoqiu Tan   +21 more
wiley   +1 more source

Left atrial appendage closure with zero fluoroscopic exposure via intracardiac echocardiographic guidance

Journal of the Formosan Medical Association, 2020
Background/Purpose: Left atrial appendage closure (LAAC) is conventionally guided by fluoroscopy and transesophageal echocardiography. We introduce an LAAC technique without fluoroscopy exposure using intracardiac echocardiography (ICE) and ...
Huimin Chu, Xianfeng Du, Caijie Shen, Bin He, Mingjun Feng, Jing Liu, Guohua Fu, Binhao Wang   +7 more
doaj  

Implantable Self‐Powered Systems for Electrical Stimulation Medical Devices

Advanced Science, EarlyView.
In this paper, the design strategy and clinical application of ISS are discussed in depth from four aspects: the design and optimization of the energy collection module, the selection and preparation of adaptive electrode materials, the innovation of system design strategy, and the biological effect of electrical stimulation of ISS.
Xi Cui, Li Wu, Chao Zhang, Zhou Li
wiley   +1 more source

Microneedles at the Forefront of Next Generation Theranostics

Advanced Science, EarlyView.
The TOC figure illustrates the revolutionary role of microneedles in modern medicine, showcasing their dual diagnostic and therapeutic functions. On the left, microneedles access interstitial fluid for real‐time monitoring of biomarkers like glucose and hormones.
Chan Wang, Yuan Yang, Jiaqi Zhang, Hanrui Zhang, Qian Wang, Shengmei Ma, Pengfei Zhao, Zhou Li, Yuxin Liu   +8 more
wiley   +1 more source