Results 31 to 40 of about 188,005 (360)

Comparison of Electrocardiographic Repolarization Patterns between Hypogonad Males and Normal Subjects

Annals of Noninvasive Electrocardiology, 2003
Background: There is a significant difference in repolarization on the surface ECG between men and women. The effect of testosterone on repolarization of myocardium may provide a basis for the physiological and pathophysiological importance of these ...
Ata Kirilmaz, Erol Bolu, Fethi Kilicaslan, Kursad Erinc, Mehmet Uzun, Ersoy Isik, Metin Ozata, Caglayan Ozdemir, Ertan Demirtas   +8 more
doaj   +1 more source

Electrophysiology Testing to Stratify Patients With Left Bundle Branch Block After Transcatheter Aortic Valve Implantation

Journal of the American Heart Association: Cardiovascular and Cerebrovascular Disease, 2020
Background Left bundle branch block (LBBB) is common after transcatheter aortic valve implantation (TAVI) and is an indicator of subsequent high‐grade atrioventricular block (HAVB).
Sven Knecht, Beat Schaer, Tobias Reichlin, Florian Spies, Antonio Madaffari, Annina Vischer, Gregor Fahrni, Raban Jeger, Christoph Kaiser, Stefan Osswald, Christian Sticherling, Michael Kühne   +11 more
doaj   +1 more source

Lidocaine as an anti‐arrhythmic drug: Are there any indications left?

Clinical and Translational Science, 2023
Lidocaine is classified as a class Ib anti‐arrhythmic that blocks voltage‐ and pH‐dependent sodium channels. It exhibits well investigated anti‐arrhythmic effects and has been the anti‐arrhythmic of choice for the treatment of ventricular arrhythmias for
Sati Güler, Hilke Könemann, Julian Wolfes, Fatih Güner, Christian Ellermann, Benjamin Rath, Gerrit Frommeyer, Philipp Sebastian Lange, Julia Köbe, Florian Reinke, Lars Eckardt   +10 more
doaj   +1 more source

Kilosort: realtime spike-sorting for extracellular electrophysiology with hundreds of channels

bioRxiv, 2016
Advances in silicon probe technology mean that in vivo electrophysiological recordings from hundreds of channels will soon become commonplace. To interpret these recordings we need fast, scalable and accurate methods for spike sorting, whose output ...
Marius Pachitariu, Nicholas A. Steinmetz, Shabnam N. Kadir, M. Carandini, Harris Kenneth D.   +4 more
semanticscholar   +1 more source

Clinical utility of cardiovascular magnetic resonance imaging in patients with implantable cardioverter defibrillators presenting with electrical instability or worsening heart failure symptoms

Journal of Cardiovascular Magnetic Resonance, 2020
Background Data on the usefulness of cardiovascular magnetic resonance (CMR) imaging for clinical decision making in patients with an implanted cardioverter defibrillator (ICD) are scarce.
Frank Lindemann, Sabrina Oebel, Ingo Paetsch, Arash Arya, Nikolaos Dagres, Sergio Richter, Borislav Dinov, Sebastian Hilbert, Susanne Loebe, Clara Stegmann, Michael Doering, Andreas Bollmann, Gerhard Hindricks, Cosima Jahnke   +13 more
doaj   +1 more source

Calibration of ionic and cellular cardiac electrophysiology models

Wiley Interdisciplinary Reviews: Systems Biology and Medicine, 2020
Cardiac electrophysiology models are among the most mature and well‐studied mathematical models of biological systems. This maturity is bringing new challenges as models are being used increasingly to make quantitative rather than qualitative predictions.
Dominic G. Whittaker, M. Clerx, Chon Lok Lei, D. Christini, Gary R. Mirams   +4 more
semanticscholar   +1 more source

Emotion recognition based on multi-modal electrophysiology multi-head attention Contrastive Learning [PDF]

arXiv, 2023
Emotion recognition is an important research direction in artificial intelligence, helping machines understand and adapt to human emotional states. Multimodal electrophysiological(ME) signals, such as EEG, GSR, respiration(Resp), and temperature(Temp), are effective biomarkers for reflecting changes in human emotions.
arxiv  

On a nonlinear model in domains with cavities arising from cardiac electrophysiology [PDF]

, 2021
In this paper we deal with the problem of determining perfectly insulating regions (cavities) from boundary measurements in a nonlinear elliptic equation arising from cardiac electrophysiology. With minimal regularity assumptions on the cavities, we first show well-posedness of the direct problem and then prove uniqueness for the inverse problem.
arxiv   +1 more source

Artifact-free and high-temporal-resolution in vivo opto-electrophysiology with microLED optoelectrodes

Nature Communications, 2020
The combination of in vivo extracellular recording and genetic-engineering-assisted optical stimulation is a powerful tool for the study of neuronal circuits.
Kanghwan Kim, M. Vöröslakos, J. Seymour, K. Wise, G. Buzsáki, E. Yoon   +5 more
semanticscholar   +2 more sources

Association of atrial fibrillation susceptibility genes, atrial fibrillation phenotypes and response to catheter ablation: a gene-based analysis of GWAS data

Journal of Translational Medicine, 2017
Background Previous studies have suggested PITX2, KCNN3 and ZFHX3 as atrial fibrillation (AF) susceptibility genes. Single common genetic polymorphisms of those genes have been linked with AF phenotypes and rhythm outcome of AF catheter ablation although
Daniela Husser, Petra Büttner, Laura Ueberham, Borislav Dinov, Philipp Sommer, Arash Arya, Gerhard Hindricks, Andreas Bollmann   +7 more
doaj   +1 more source