Results 51 to 60 of about 4,010 (117)

Comparative multimodal calibration of patient‐specific atrial fibrillation models: Impact of imaging and electrophysiology data on arrhythmogenic substrate identification

The Journal of Physiology, EarlyView.
Abstract figure legend Comparative multimodal calibration of patient‐specific left atrial (LA) models to identify arrhythmogenic substrates in atrial fibrillation (AF). A, LA models shown in posterior and anterior views, calibrated separately using: late gadolinium enhancement magnetic resonance imaging (LGE‐MRI) image intensity ratio (IIR; blue–red ...
Mahmoud Ehnesh, Haseeb Valli, Ovais A. Jaffery, Sam Coveney, Alexander Zolotarev, Zhong Chen, Wajid Hussain, David G. Jones, Raad Mohiaddin, Tom Wong, Gregory Slabaugh, Steven A. Niederer, Edward Vigmond, Shouvik Haldar, Caroline Roney   +14 more
wiley   +1 more source

A Simple Manual Maneuver for Suspected Back‐Patch‐Related Positional Alerts During Pulsed Field Ablation

Journal of Arrhythmia, Volume 42, Issue 5, October 2026.
Summary of the manual counter‐traction maneuver for suspected back‐patch‐related positional alerts during PFA. Cough‐related body movement caused suspected cranial‐side back‐patch displacement and triggered CARTO positional alerts. Light cranial skin counter‐traction was applied opposite to the apparent patch‐shift direction without direct contact with
Saki Yamano, Tetsuma Kawaji, Misaki Naka, Ryuta Ishida, Masaya Kitamori, Masashi Kato, Takafumi Yokomatsu, Shinji Miki   +7 more
wiley   +1 more source

Ventricular Tachycardia in Repaired Double Chambered Right Ventricle - Identification of the Substrate and Successful Ablation

Indian Pacing and Electrophysiology Journal, 2012
A 35 year old female presented with recurrent ventricular tachycardia 5 years after she had undergone surgical repair of double chambered right ventricle.
Dr. Raja J. Selvaraj, Pakkirisamy Gobu, Thulaseedharan S. Ashida, Geofi George, Jayaraman Balachander   +4 more
doaj   +1 more source

Hemoglobin Levels as a Marker of Arrhythmia Recurrence After Atrial Fibrillation Ablation

Journal of Arrhythmia, Volume 42, Issue 5, October 2026.
Lower hemoglobin levels are associated with increased arrhythmia recurrence after radiofrequency ablation but not cryoballoon ablation. The stronger association in patients with non‐paroxysmal AF suggests that low hemoglobin may reflect an adverse atrial substrate rather than a procedural effect.
Yasuharu Matsunaga‐Lee, Yasuyuki Egami, Ayako Sugino, Noriyuki Kobayashi, Masaru Abe, Hiroaki Nohara, Shodai Kawanami, Koji Yasumoto, Naotaka Okamoto, Masamichi Yano, Masami Nishino   +10 more
wiley   +1 more source

Functional Activation Mapping of Scar-Related Ventricular Tachycardia Substrate

Journal of Cardiac Arrhythmias, 2020
The optimal method to identify the arrhythmogenic substrate of scar-related ventricular tachycardia (VT) is unknown. Sites of activation slowing during sinus rhythm (SR) often co-localize with the VT circuit.
Carlos Volponi Lovatto, Fabricio Vassallo, Eduardo Serpa, Aloyr Simões Jr, Hermes Carloni, Christiano Lemos, Walter Batista Jr, Dalton Hespanhol, Alberto Nogueira, Rafael Zeni, Marcel Burgues, Edevaldo Silva   +11 more
doaj   +4 more sources

Multimodality Imaging‐Guided Pulsed Field Ablation for Atrial Fibrillation in Cor Triatriatum Sinister

Journal of Arrhythmia, Volume 42, Issue 5, October 2026.
Multimodality imaging facilitated safe transseptal access and catheter navigation in a patient with cor triatriatum sinister. CARTO‐integrated VARIPULSE pulsed‐field ablation achieved pulmonary vein isolation without complications, demonstrating a feasible treatment strategy for atrial fibrillation in complex congenital left atrial anatomy.
Kazuya Murata, Yasuteru Yamauchi, Atsuhito Oda, Hirofumi Arai, Tetsuo Sasano   +4 more
wiley   +1 more source

A Special Muscle Fiber Surviving After Septal Line Ablation of Mitral‐Isthmus Dependent Atrial Flutter

Journal of Arrhythmia, Volume 42, Issue 5, October 2026.
Following unsuccessful supero‐septal line ablation for mitral isthmus‐dependent atrial flutter, a conduction gap may occur along the septoatrial bundle (SAB). In such cases, linear ablation extending perpendicularly to the supero‐septal ablation line (SSL) toward Bachmann's bundle (BB) may achieve complete conduction block across the supero‐septal ...
Takumi Yamada, Krittapoom Akrawinthawong, Yuichiro Miyazaki, Shumpei Mori   +3 more
wiley   +1 more source

Mapping of ventricular tachycardia in patients with structural heart disease

Journal of Arrhythmia, 2014
Catheter ablation is now recognized as one of the potent options to reduce the number of implantable cardioverter defibrillator (ICD) shock therapies by modifying arrhythmic substrate in patients affected by ventricular tachycardia (VT).
Hiroya Mizuno
doaj   +1 more source

Pulsed‐Field Ablation for Atrial Fibrillation in Partial Anomalous Pulmonary Venous Return With Right Atrial Drainage of Both Right Pulmonary Veins

Journal of Arrhythmia, Volume 42, Issue 5, October 2026.
Pulsed‐field ablation was safely performed in a patient with atrial fibrillation and partial anomalous pulmonary venous return. Electroanatomical mapping defined the sinus node region and confirmed sufficient distance from anomalous right pulmonary vein ablation sites, enabling successful isolation.
Keisho Kurokawa, Hiroshi Kawakami, Tomoki Fujisawa, Momo Taira, Rikako Horie, Shunsuke Tamaki, Osamu Yamaguchi   +6 more
wiley   +1 more source

Optimization of Outflow-Tract Ventricular Arrhythmia Ablation Using a Universal Right Ventricle Model

Journal of Cardiovascular Development and Disease
Introduction: The radiofrequency catheter ablation (RFCA) of ventricular arrhythmias (VAs) originating from the right ventricular outflow tract (RVOT) is a well-established therapy. Traditionally, RFCA is guided using electroanatomical 3D mapping systems
Krystian Szkoła, Łukasz Zarębski, Paweł Turek, Marian Futyma, Łukasz Wiśniowski, Piotr Futyma   +5 more
doaj   +1 more source