Results 281 to 290 of about 64,157 (326)

Dual Chamber Open Window Mapping and High‐Density Mapping for Atrioventricular Reentrant Tachycardia Associated With Atrioventricular Mahaim Fiber

Journal of Arrhythmia, Volume 41, Issue 4, August 2025.
Dual‐chamber open‐window mapping (OWM) combined with high‐density mapping revealed early atrioventricular conduction on the lateral tricuspid annulus, consistent with a Mahaim fiber. Catheter ablation targeting the ventricular insertion site led to successful elimination of the accessory pathway and noninducibility of tachycardia.
Yuta Taomoto, Yuichi Ono, Ryota Ishida, Tatsuya Sakamoto, Kenichiro Otomo   +4 more
wiley   +1 more source

The Utility of Notched P‐Wave on the Occurrence of Ventricular Fibrillation in Patients With Brugada Syndrome

Journal of Arrhythmia, Volume 41, Issue 4, August 2025.
Notched P‐waves on 12‐lead ECG are significantly associated with ventricular fibrillation in Brugada syndrome, suggesting their potential relevance in identifying patients at increased arrhythmic risk. ABSTRACT Background Risk stratification for ventricular fibrillation (VF) in patients with Brugada syndrome (BrS) remains a significant clinical ...
Keisuke Yonezu, Tetsuji Shinohara, Masaki Takahashi, Taisuke Harada, Kazuki Mitarai, Masayuki Takano, Kei Hirota, Ichitaro Abe, Hidekazu Kondo, Akira Fukui, Hidefumi Akioka, Yasushi Teshima, Naohiko Takahashi   +12 more
wiley   +1 more source

Successful Left Bundle Branch Area Pacing Using the Sheath‐In‐Sheath Technique in a Patient With Right Atrial Enlargement and Tricuspid Annuloplasty Ring

Journal of Arrhythmia, Volume 41, Issue 4, August 2025.
We report a successful LBBAP lead implantation using the sheath‐in‐sheath technique in a patient with RA enlargement and a TAP ring. The sheath‐in‐sheath technique can serve as a valuable alternative approach in patients with structural heart abnormalities in whom LBBAP lead placement with a standard delivery system is technically challenging.
Hiroyuki Kato, Taku Sakurai, Jun Sato, Kazumasa Suga, Hisashi Murakami   +4 more
wiley   +1 more source

Optimization of Coronary Sinus Pacing Site Based on Cardiac Contractility Detected by a Right Atrial Lead–Embedded Accelerometer

Journal of Arrhythmia, Volume 41, Issue 4, August 2025.
A narrow QRS duration does not necessarily correlate with a high SonR value. To identify the optimal pacing site, comprehensive evaluation of all available parameters, including the use of MPP, may be necessary.
Kosuke Muto, Yoshifumi Ikeda, Hitoshi Mori, Ritsushi Kato   +3 more
wiley   +1 more source

Extracting Genetically‐Imputed Causal Features From ECG Data

Statistical Analysis and Data Mining: An ASA Data Science Journal, Volume 18, Issue 4, August 2025.
ABSTRACT Atrial fibrillation (AF), a cardiac arrhythmia characterized by an abnormal and rapid heartbeat, has the potential to develop into stroke, heart failure, and, ultimately, mortality. The electrocardiogram (ECG) is a pivotal tool in the diagnosis of AF, offering a quick, cost‐effective, and non‐invasive mean to record the heart's electrical ...
Yuchen Yao, Zhaotong Lin, Xiaotong Shen, Lin Yee Chen, Wei Pan   +4 more
wiley   +1 more source

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The QRS Complex

Cardiac Electrophysiology Clinics, 2017
The ventricular conduction system starts below the His bundle, where it bifurcates into the right and left bundle branches that taper out to the subendocardial Purkinje network, which activates the ventricular myocardium. This system is responsible for the synchronized and almost simultaneous activation of both ventricles.
Roberto De Ponti, Carola Gianni, Luigi Padeletti, Giuseppe Bagliani   +3 more
openaire   +3 more sources

Supraventricular Arrhythmia With Abnormal QRS Complex

Archives of Internal Medicine, 1972
Thus far, the discussion of supraventricular arrhythmia with abnormal QRS complex has included preexisting conduction defects, the preexcitation syndrome (Wolff-Parkinson-White syndrome), and functional bundle-branch block due to sudden shortening of cycle length, often combined with prolongation of preceding cycle; the latter is popularly called the ...
Charles Fisch, Douglas P. Zipes
openaire   +6 more sources

Modeling QRS Complex in dECG

IEEE Transactions on Biomedical Engineering, 2007
It is proposed to model the derivative of electrocardiogram (ECG) signal, which we refer to as dECG, instead of the ECG signal. It is shown that the QRS complex in the dECG signal can be represented in the frequency domain by an all-pole model of appropriate order, the coefficients of the model being determined using the covariance method of linear ...
Chandrakar, Kamath, T V, Ananthapadmanabha, T V, Ananthapadmanabhayuyu   +2 more
openaire   +3 more sources