Results 71 to 80 of about 1,075,199 (149)

The anatomy of interatrial communications - what does the interventionist need to know? [PDF]

, 2000
Increasingly, the interventional cardiologist is seeking to close interatrial communications by inserting devices by means of catheterisation. So as to optimise these procedures, it is adavantageous to have a firm grasp of the anatomy of the normal ...
Anderson, RH, Martins, JDF
core  

Association of Abnormal P‐Wave Indices With Dementia and Cognitive Decline Over 25 Years: ARIC‐NCS (The Atherosclerosis Risk in Communities Neurocognitive Study)

Journal of the American Heart Association: Cardiovascular and Cerebrovascular Disease, 2019
Background Abnormal P‐wave indices (PWIs)—reflecting underlying left atrial abnormality—are associated with increased risk of stroke independent of atrial fibrillation.
Alejandra Gutierrez, Faye L. Norby, Ankit Maheshwari, Mary R. Rooney, Rebecca F. Gottesman, Thomas H. Mosley, Pamela L. Lutsey, Niki Oldenburg, Elsayed Z. Soliman, Alvaro Alonso, Lin Y. Chen   +10 more
doaj   +1 more source

Channelrhodopsin ion selectivity determines mechanisms and efficacy of optogenetic defibrillation in human atria and ventricles

The Journal of Physiology, EarlyView.
Abstract figure legend A, we used in silico models of human cardiomyocytes and microelectrode recordings on transgenic zebrafish hearts to study electrophysiology during optogenetic perturbations. Specifically, we compared effects of three distinct classes of channelrhodopsins: the cation non‐selective Chlamydomonas reinhardtii channelrhodopsin‐2 (ChR2)
Sophia Ohnemus, Albert Dasí, Ahmed F. Ramadan, Joachim Greiner, Eike M. Wülfers, Matthew R. Stoyek, Linda Tillert, Johannes Vierock, T. Alexander Quinn, Peter Kohl, Patrick M. Boyle, Viviane Timmermann, Franziska Schneider‐Warme   +12 more
wiley   +1 more source

Atrial Fibrillation Dynamics and Ionic Block Effects in Six Heterogeneous Human 3D Virtual Atria with Distinct Repolarization Dynamics

Frontiers in Bioengineering and Biotechnology, 2017
Atrial fibrillation (AF) usually manifests as reentrant circuits propagating through the whole atria creating chaotic activation patterns. Little is yet known about how differences in electrophysiological and ionic properties between patients modulate ...
Carlos Sánchez, Carlos Sánchez, Alfonso Bueno-Orovio, Esther Pueyo, Esther Pueyo, Blanca Rodríguez   +5 more
doaj   +1 more source

Right Ventricular Dysfunction and Ventriculo‐Arterial Uncoupling in Heart Failure With Preserved Ejection Fraction: A Phenotype‐Specific Review of Mechanisms, Diagnosis, and Therapeutic Strategies

Clinical Cardiology, Volume 49, Issue 11, November 2026.
Right ventricular dysfunction affects 19%–33% of patients With heart failure With preserved ejection fraction and is associated With exercise intolerance, hospitalization, and mortality. Assessing right ventricular function and its coupling with the pulmonary circulation may improve risk stratification and support management tailored to distinct ...
Amarelle Chamoun, Talha Farooq, Suhayya Batool, Sadia Tameez‐ud—din, Muhammad Yousaf, Preet Memon, Mohsin Ali, Arun Kumar Maloth, F. N. U. Sawaira, Muhammad Taimur Khan, Mohammad Eisa Ali, Mansoor Khalid, Maleeha Pandit, Kamil Ahmad Kamil   +13 more
wiley   +1 more source

Epicardial Connection as a Resource of Atrial Fibrillation Recurrence After Pulsed Field Ablation: A Case Report

Clinical Case Reports, Volume 14, Issue 10, October 2026.
ABSTRACT This case highlights an uncommon but clinically important mechanism of atrial fibrillation recurrence after Pulsed field ablation. It emphasizes the importance of ablation along the ridge during the first session and also the need for careful evaluation of epicardial conduction, particularly in patients with a left common pulmonary vein.
Kyong Hee Lee, Takeshi Kitamura, Shuichi Sahashi, Haruki Sugiyama, Chihiro Izumi, Kentaro Hayashi   +5 more
wiley   +1 more source

Right Atrium–Dominant Single‐Loop Biatrial Tachycardia Mimicking Reverse Typical Atrial Flutter After Mitral Valve Repair via a Superior Transseptal Approach

Journal of Arrhythmia, Volume 42, Issue 5, October 2026.
Following a superior transseptal approach, extensive postoperative septal conduction impairment facilitated a right atrium–dominant single‐loop biatrial tachycardia mimicking reverse typical atrial flutter. Detailed biatrial mapping and entrainment revealed limited left atrial participation, highlighting the importance of recognizing biatrial circuits ...
Kota Nakatsuji, Shogo Sakamoto, Moritoshi Irishio, Toru Kataoka, Daiju Fukuda   +4 more
wiley   +1 more source

Role of interatrial conduction in atrial fibrillation: Mechanistic insights from renewal theory–based fibrillatory dynamic analysis

, 2022
BACKGROUND: Interatrial conduction has been postulated to play an important role in atrial fibrillation (AF). The pathways involved in interatrial conduction during AF remain incompletely defined. OBJECTIVE: We recently showed physiological assessment of
Selvanayagam, Joseph B., Smith, Corey, Dharmaprani, Dhani, Stoyanov, Nik, Jenkins, Evan, Quah, Jing Xian, Tiver, Kathryn, Ahmad, Waheed, Selvanayagam, Joseph B, Chahadi, Fahd, Singleton, Cameron, Hecker, Teresa, Stanton, Tony, Lahiri, Anandaroop, Joseph, Majo X., Ganesan, Anand, et al., Tung, Matthew, Joseph, Majo X, Kathryn Tiver, Fahd Chahadi, Tony Stanton, Waheed Ahmad, Majo X. Joseph, Joseph B. Selvanayagam, Dhani Dharmaprani, Cameron Singleton, Anand Ganesan, Teresa Hecker, Jing Xian Quah, Evan Jenkins, Anandaroop Lahiri, Corey Smith, Nik Stoyanov, Matthew Tung   +34 more
core   +1 more source

Multimodality imaging of a rare intracardiac bronchogenic cyst

Radiology Case Reports
The authors report a case of pathologically proven intracardiac bronchogenic cyst embedded within the interatrial septum of a 30-year-old woman presenting with chest pain and first-degree AV block.
Jeffrey Gonzalez, B.S., Juan C. Batlle, M.D., Christopher Maroules, M.D., Ricardo C. Cury, M.D., FSCCT, Constantino S. Peña, M.D., Charles Ma, M.D., Manuel Menes, M.D., Karl Sayegh, M.D.   +7 more
doaj   +1 more source

Left Atrial Inexcitability in Children With Congenital Lupus‐Induced Complete Atrioventricular Block

Journal of the American Heart Association: Cardiovascular and Cerebrovascular Disease, 2015
Background Congenital atrioventricular block is a well‐established immunologic complication of maternal systemic lupus erythematosus. We sought to further characterize the electrophysiological manifestations of maternal systemic lupus erythematosus on ...
Sylvia Abadir, Anne Fournier, Suzanne J. Vobecky, Charles V. Rohlicek, Philippe Romeo, Paul Khairy   +5 more
doaj   +1 more source