Results 51 to 60 of about 118,244 (197)

Concealed reentry: a mechanism of atrioventricular nodal alternating Wenckebach periodicity.

, 1982
Alternating WEnckebach periodicity is generally believed to reflect bilevel block due to horizontal electrophysiologic dissociation in the conducting tissues.
R H Svenson, L Littmann
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The Evolving Role of Ivabradine for Focal Atrial Tachycardia: A Systematic Review

Journal of Arrhythmia, Volume 42, Issue 2, April 2026.
Overview of the evolving role of ivabradine in focal atrial tachycardia (FAT), highlighting its HCN‐mediated mechanism, features of ivabradine‐sensitive FAT, hypothesized predictors of response, special populations requiring special considerations, and potential adverse effects.
Haikal Balweel, Rifqi Rizkani Eri, Sania Zahrani, Kiara Hanna Quinncilla, Novaro Adeneur Tafriend, Agus Harsoyo   +5 more
wiley   +1 more source

Analysis of the asymmetrically expressed Ablim1 locus reveals existence of a lateral plate Nodal-independent left sided signal and an early, left-right independent role for nodal flow. [PDF]

, 2010
BACKGROUND: Vertebrates show clear asymmetry in left-right (L-R) patterning of their organs and associated vasculature. During mammalian development a cilia driven leftwards flow of liquid leads to the left-sided expression of Nodal, which in turn ...
Norris, Dominic P., Peter Underhill, Norris, DP, Hilton, Helen, Alexander Ermakov, Bhattacharya, S, Underhill, P, Brown, NA, Dominic P Norris, Underhill, Peter, Hilton, H, Stevens, Jonathan, Bragança, José, Jonathan Stevens, Shoumo Bhattacharya, Ermakov, A, Braganca, J, Bhattacharya, Shoumo, Jose Braganca, Nigel A Brown, Stevens, J, Brown, Nigel A., Helen Hilton, Ermakov, Alexander   +23 more
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Prevalence and Structured Approach to the Diagnoses of A on V Tachycardias

Journal of Arrhythmia, Volume 42, Issue 2, April 2026.
Schematic tachycardia circuit diagram and corresponding laddergram depicting how atrial and ventricular activations become coincident to exhibit true A on V tachycardia, contrasted with the electrophysiologic basis of pseudo A on V patterns. ABSTRACT Background “A on V” tachycardia (AoV‐T) is classically considered suggestive of atrioventricular nodal ...
Shuta Kanai, Koichi Nagashima, Mitsunori Maruyama, Akihiko Nogami, Yosuke Nakatani, Hitoshi Hirano, Akira Kimata, Tatsuya Hayashi, Kentaro Hayashi, Masato Okada, Naoko Miyazaki, Akinobu Mizutani, Mebae Mizutani, Masafumi Kato, Hitoshi Mori, Satoshi Higuchi, Shohei Kataoka, Ryuta Watanabe, Shu Hirata, Masanaru Sawada, Yuji Saito, Hikaru Masuda, Yasuo Okumura, Melvin M. Scheinman   +23 more
wiley   +1 more source

Coexistence of Atrioventricular Nodal Reentrant Tachycardia and Idiopathic Left Ventricular Outflow-Tract Tachycardia [PDF]

, 2005
Double tachycardia is a relatively rare condition. We describe a 21 year old woman with history of frequent palpitations. In one of these episodes, she had wide complex tachycardia with right bundle branch and inferior axis morphology.
Arash Arya, Alireza Heidari, Fazelifar, Amirfarjam, Heidari, Alireza, Majid Haghjoo, Emkanjoo, Zahra, Mohammadreza Dehghani, Amirfarjam Fazelifar, Zahra Emkanjoo, Dehghani, Mohammadreza, Sadr-Ameli, MohammadAli, Haghjoo, Majid, MohammadAli Sadr-Ameli, Arya, Arash   +13 more
core  

Radiofrequency catheter ablation reduces the severity of anxiety in patients with atrioventricular nodal reentry tachycardia, regardless of age, sex, tachycardia type, and laboratory findings

Medicine Science
Assess pre and postinterventional anxiety levels in radiofrequency catheter ablation recipients (RFCA) for atrioventricular nodal reentry tachycardia (AVNRT) and investigate whether changes are associated with demographic and clinical characteristics and
Ramazan Duz, Yemlihan Ceylan, Naci Babat, Salih Cibuk   +3 more
doaj   +1 more source

AV Nodal Reentrant Tachycardia in a Patient with Persistent Left Superior Vena Cava: Distinction between AV Nodal Versus Atrial Reentry

Journal of Arrhythmia, 2010
A 75-year-old male presented with palpitation on exertion. He suffered from frequent tachycardia attacks. His 12-leads electrocardiogram showed irregular cycle lengths (400–550 ms) of tachycardia with occasional 2:1 atrioventricular conduction (thus AV ...
Terunobu Fukuda, MD, Tetsuya Haruna, MD, Hidehiro Ito, MD, Kenichi Sasaki, MD, Tomomi Abe, MD, Eisaku Nakane, MD, Shouichi Miyamoto, MD, Kyoukun Uehara, MD, Muneo Ooba, MD, Kouji Ueyama, MD, Moriaki Inoko, MD, Ryuji Nohara, MD   +11 more
doaj   +1 more source

Outcomes of Cardiac Repair in Heterotaxy Syndrome Patients—Tertiary Center Experience

CJC Pediatric &Congenital Heart Disease, Volume 5, Issue 1, Page 12-19, February 2026.
Abstract Background This study aims to determine factors associated with poor outcomes and frequency of arrhythmia incidence in patients with heterotaxy syndrome (HS). Methods A retrospective cohort study in a single tertiary center was conducted and included patients with operated HS between 2011 and 2020.
Mohammad A. Ebrahim, Nada T. Alzayed, Sakeena M. Alsahhaf, Mohammad A. Almulla, Karim M. Yassin, Leina A. Shabaan, Moustafa A. Elsayed, Vadim G. Lyubomudrov   +7 more
wiley   +1 more source

Supraventricular Arrhythmias in Pulmonary Hypertension: A Comprehensive Review From Preclinical Evidence to Clinical Practice

Pulmonary Circulation, Volume 16, Issue 1, January 2026.
ABSTRACT Pulmonary Hypertension (PH) is a chronic disease that causes significant structural deterioration in the right atrium and ventricle. In the past 1–2 decades, life expectancy in patients with PH has increased due to improved awareness, diagnosis and advancements in treatment.
Abdulkadir Kiris, Peng Zhang, Peter Bronk, Kurt W. Prins, Bum‐Rak Choi, Gaurav Choudhary   +5 more
wiley   +1 more source

One-dimensional mathematical model of the atrioventricular node including atrio-nodal, nodal, and nodal-His cells [PDF]

, 2009
Mathematical models are a repository of knowledge as well as research and teaching tools. Although action potential models have been developed for most regions of the heart, there is no model for the atrioventricular node (AVN).
Boyett, M. R., Hancox, J.C., Inada, S., Boyett, M.R., Zhang, H., Hancox, JC, Zhang, H, Hancox, J. C.   +7 more
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