Results 51 to 60 of about 339,240 (330)

Arrhythmias and pacing [PDF]

European Heart Journal, 2015
Arrhythmias remain a frequent cause of morbidity and mortality in cardiovascular (CV) patients, and thus an important issue for practising cardiologists. Therefore, the European Society of Cardiology has published guidelines on cardiac pacing and resynchronization therapy1 and on atrial fibrillation,2 syncope,3 and ventricular arrhythmias,4 and ...
openaire   +4 more sources

Volumetric 3D Printing and Melt‐Electrowriting to Fabricate Implantable Reinforced Cardiac Tissue Patches

Advanced Materials, EarlyView.
This study presents an implantable reinforced cardiac patch (RCPatch) combining volumetrically 3D‐printed metamaterials with melt‐electrowritten (MEW) meshes. The design integrates tunable stiff polymer structures with soft, cell‐laden hydrogels. The RCPatch withstands suturing, intraventricular pressure, and cardiac contraction in a large animal ...
Lewis S. Jones, Hector Rodriguez Cetina Biefer, Manuel Mekkattu, Quinten Thijssen, Alessio Amicone, Anna Bock, Miriam Weisskopf, Dennis Zorndt, Debora Meier, Li Zheng, Melanie Generali, Robert K. Katzschmann, Omer Dzemali   +12 more
wiley   +1 more source

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  

Investigating the role of electroanatomical mapping in single‐shot pulsed field catheter ablation

Journal of Arrhythmia
Introduction Pulsed field ablation (PFA) is a form of nonthermal energy that has been recently introduced for pulmonary vein isolation (PVI). A multi‐electrode pentaspline catheter for delivery of PFA guided by fluoroscopy has become widely available for
Ourania Kariki, Panagiotis Mililis, Athanasios Saplaouras, Theodoros Efremidis, Anastasios Chatziantoniou, Ioannis Panagiotopoulos, Stylianos Dragasis, Konstantinos P. Letsas, Michael Efremidis   +8 more
doaj   +1 more source

3D Printing of Conducting Polymer Hydrogels for Electrostimulation‐Assisted Tissue Engineering

Advanced Materials, EarlyView.
This review highlights nanosized inherently conducting polymers (ICPs) as promising ink constituents for 3D printing of conducting hydrogel (CH)‐based electrostimulation (ES) devices. ICP‐based ink formulation, 3D printing, and solidification strategies are discussed, along with the application of 3D‐printed ICP‐based CHs as ES platforms for regulating
Chien Minh Tran, Zhilian Yue, Chunyan Qin, Kusuma B. C. Imani, Mirella Dottori, Robert J. Forster, Gordon G. Wallace   +6 more
wiley   +1 more source

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

Cardiac Arrhythmia and Geomagnetic Activity [PDF]

, 2006
Background: The purpose of this paper is a review of a number of studies considering links between life threatening cardiac arrhythmias, sudden cardiac death (SCD) and the level of environmental physical activity factors like geomagnetic activity (GMA)
Stoupel, E
core   +2 more sources

Hypoglycemia Induces Diabetic Macrovascular Endothelial Dysfunction via Endothelial Cell PANoptosis, Macrophage Polarization, and VSMC Fibrosis

Advanced Science, EarlyView.
This study investigates hypoglycemia‐induced diabetic macrovascular endothelial dysfunction. It reveals that hypoglycemia triggers ZBP1‐dependent PANoptosis of endothelial cells, proinflammatory polarization of macrophages, and fibrosis of vascular smooth muscle cells (VSMCs) in diabetic mice.
Deyu Zuo, Yuce Peng, Guozhi Zhao, Zhesheng Cheng, Minghao Luo, Dingyi Lv, Shuting Chang, Na Li, Yanyao Huang, Xunjia Li, An He   +10 more
wiley   +1 more source

Rate-dependent and antiarrhythmic reentrant tachycardia (AVNRT) effects of simvastatin in isolated rabbit atrioventricular nodal model [PDF]

, 2010
Background and purpose: Several previous studies have shown the direct and indirect effects of statins on supraventricular and ventricular arrhythmia. The purpose of the present study is to determine (1) whether Simvastatin modifies the rate-dependent ...
Alizadeh, A.M., Alizadeh, F., Badaghabadi, F., Changizi, S., Khori, V., Najafi, S.A., Nayebpour, M., Pourabouk, M., Salehi, A.   +8 more
core  

Microphysiological Uremia Model Reveals Biophysical Potentiators of Vascular Dysfunction

Advanced Science, EarlyView.
A microfluidic platform of engineered blood vessels is developed to study the role of mechanical forces in immune cell adhesion and extravasation in uremic microenvironments. Elevated pressure increases monocyte activity, with ICAM‐1 as a key driver. Matrix density influences monocyte phenotypes, but the uremic environment consistently promoted a pro ...
Mitesh Rathod, Ryan N. Stack, Sarah E. Kubik, Stephanie A. Huang, Chloe P. Whitworth, Wen Y. Aw, Elizabeth L. Doherty, Sara M. Meehan, Prabir Roy‐Chaudhury, William J. Polacheck   +9 more
wiley   +1 more source