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Atrioventricular Node Reentry Supraventricular Tachycardia

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Differentiating Atrioventricular Reentry Tachycardia and Atrioventricular Node Reentry Tachycardia Using Premature His Bundle Complexes.

Benzy J Padanilam, Asim S Ahmed, Brad A Clark, Jasen L Gilge, Parin J Patel, Eric N Prystowsky, Leonard A Steinberg,

BACKGROUND:Current maneuvers for differentiation of atrioventricular node reentry tachycardia (AVNRT) and atrioventricular reentry tachycardia (AVRT) lack sensitivity and specificity for AVRT circuits located away from the site of pacing. We hypothesized that a premature His complex (PHC) will always perturb AVRT because the His bundle is obligatory to the circuit. ... Read more >>

Circ Arrhythm Electrophysiol (Circulation. Arrhythmia and electrophysiology)
[2020, 13(1):e007796]

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Gag Reflex-Mediated Restoration of Sinus Rhythm during TEE Probe Insertion for Atrial Fibrillation: A Word of Caution.

Zeid Nesheiwat, Marcel Ghanim, Joseph Eid, Neha Patel, Cameron Burmeister, Ehab Eltahawy,

It is recommended to attempt vagal maneuvers as initial therapy in various types of supraventricular tachycardia. While various forms of vagal techniques have been described, a gag reflex-mediated vagal technique, to the best of our knowledge, has not been. We present a case of gag reflex-mediated restoration of sinus rhythm ... Read more >>

Case Rep Cardiol (Case reports in cardiology)
[2020, 2020:6398196]

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Ventriculoatrial conduction in patients without high-grade AV block: when is it present?

Claude S Elayi, Gustavo Morales, Muhammad Butt, Jignesh Shah, Gbolahan Ogunbayo, Naoki Misumida, John Catanzaro, Luigi Di Biase, Andrea Natale, Brian Delisle, Yousef Darrat,

INTRODUCTION:Ventriculoatrial (VA) conduction is a critical component in many arrhythmias, has a diagnostic value in electrophysiology study (EPS), and is implicated in pacemaker-mediated arrhythmias. This study sought to characterize retrograde conduction during EPS and to utilize it as a diagnostic tool in patients without AV block. METHODS AND RESULTS:Patients with ... Read more >>

J Interv Card Electrophysiol (Journal of interventional cardiac electrophysiology : an international journal of arrhythmias and pacing)
[2019, :]

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Repeated misclassifications of tachycardia by an implantable cardiac defibrillator.

Atsuyuki Watanabe, Osamu Fujimura,

This case describes repeated misclassifications of SVT due to AV node reentry as VT by an ICD. This case illustrates the limitations of SVT-VT discrimination algorithm. Careful analysis of the stored tracings is of critical importance to reach the correct diagnosis. ... Read more >>

Indian Pacing Electrophysiol J (Indian pacing and electrophysiology journal)
[2019, :]

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Simultaneous dual AV node antegrade conduction (2 for 1) and lower common pathway (2-1) block illustrate AVNRT physiology.

Balaram Krishna Hanumanthu, Andrew Krummerman, Michael Grushko,

We report a rare case of spontaneous initiation of Atrioventricular nodal reentry tachycardia (AVNRT) via 2 for 1 phenomenon, into a 2:1 AV block due to lower common pathway block and finally transition to 1:1 tachycardia. The premature atrial p wave traverses down both the fast and slow pathway simultaneously ... Read more >>

Indian Pacing Electrophysiol J (Indian pacing and electrophysiology journal)
[2020, 20(2):70-72]

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Demonstration of the Anatomical Tachycardia Circuit in Sinoatrial Node Reentrant Tachycardia: Analysis Using the Entrainment Method.

Hiroshige Yamabe, Yoshiya Orita,

Background The anatomical tachycardia circuit of sinoatrial node reentrant tachycardia (SANRT) has not been well clarified. This study aimed to elucidate the tachycardia circuit of SANRT. Methods and Results Exit and entrance of the intranodal sinoatrial node conduction (I-SANC) of the reentry circuit were identified in 15 SANRT patients. After ... Read more >>

J Am Heart Assoc (Journal of the American Heart Association)
[2020, 9(2):e014472]

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Zero-fluoroscopy approach for ablation of supraventricular tachycardia using the Ensite NavX system: a multicenter experience.

Guangzhi Chen, Yan Wang, Riccardo Proietti, Xunzhang Wang, Feifan Ouyang, Chang Sheng Ma, Rong Hui Yu, Chunxia Zhao, Kezhong Ma, Jie Qiu, Qigong Liu, Dao Wen Wang,

BACKGROUND:Three-dimensional electroanatomic mapping systems have demonstrated a significant reduction in radiation exposure during radiofrequency catheter ablation procedures. We aimed to investigate the safety, feasibility and efficacy of a completely zero-fluoroscopy approach for catheter ablation of supraventricular tachycardia using the Ensite NavX navigation system compared with a conventional fluoroscopy approach. METHODS:A ... Read more >>

BMC Cardiovasc Disord (BMC cardiovascular disorders)
[2020, 20(1):48]

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Orthodromic atrioventricular reentrant tachycardia using a concealed isoproterenol-sensitive accessory pathway.

Christian Steinberg, François Philippon, Gilles O'Hara, Jean Champagne,

Accessory pathways (APs) represent the substrate for atrioventricular reentrant tachycardia. Catecholamine-sensitivity is an uncommon feature of APs and has been almost exclusively been described in APs with antegrade conduction. We present the rare case of a catecholamine-dependent concealed AP that was only unmasked upon isoproterenol stimulation and successfully ablated. This ... Read more >>

Indian Pacing Electrophysiol J (Indian pacing and electrophysiology journal)
[2020, 20(2):73-77]

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Fetal arrhythmias: prenatal evaluation and intrauterine therapeutics.

Shi-Min Yuan, Zhi-Yang Xu,

INTRODUCTION:Fetal arrhythmias are a common phenomenon with rather complicated etiologies. Debates remain regarding prenatal diagnosis and treatment of fetal arrhythmias. METHODS:The literature reporting on prenatal diagnosis and treatment of fetal arrhythmias published in the recent two decades were retrieved, collected and analyzed. RESULTS:Both fetal magnetocardiogram and electrocardiogram provide information of ... Read more >>

Ital J Pediatr (Italian journal of pediatrics)
[2020, 46(1):21]

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Neonatal supraventricular tachycardia.

Chandra Srinivasan, Seshadri Balaji,

Supraventricular tachycardia (SVT) is one of the most common conditions requiring emergency cardiac care in neonates. Atrioventricular reentrant tachycardia utilizing an atrioventricular bypass tract is the most common form of SVT presenting in the neonatal period. There is high likelihood for spontaneous resolution for most of the common arrhythmia substrates ... Read more >>

Indian Pacing Electrophysiol J (Indian pacing and electrophysiology journal)
[2019, 19(6):222-231]

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Management of asymptomatic ventricular preexcitation.

Shaun Mohan, Seshadri Balaji,

An incidental discovery of Wolff Parkinson White (WPW) pattern on the electrocardiogram (ECG) is not an infrequent finding facing the physician. Most patients discovered incidentally are asymptomatic and it is hard to justify further management of such patients given the time-honored adage to "first do no harm." However, this finding ... Read more >>

Indian Pacing Electrophysiol J (Indian pacing and electrophysiology journal)
[2019, 19(6):232-239]

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[Inadequate, inappropriate sinus-node tachycardia. An old cardiac arrhythmia in a new perspective].

József Borbola, Csaba Földesi, Attila Kardos, Zoltán Som,

Introduction: The inadequate, inappropriate sinus-node tachycardia is not a rare clinical syndrome, defined as a non-paroxysmal, increased sinus-rate at rest, and/or inadequate response to physical and/or emotional stress, and palpitations. Aim: The aim of this study was to describe our experiences with the investigations of our inappropriate sinus-node tachycardia patients. ... Read more >>

Orv Hetil (Orvosi hetilap)
[2019, 160(37):1464-1470]

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Junctional ectopic tachycardia in infants and children.

Ranjit I Kylat, Ricardo A Samson,

Tachyarrhythmias originating in the atrioventricular (AV) node and AV junction including the bundle of His complex (BH) are called junctional tachycardia (JT) or junctional ectopic tachycardia (JET). Congenital JET (CJET) is a rare arrhythmia that occurs in patients without a preceding cardiac surgery and can be refractory to medical therapy ... Read more >>

J Arrhythm (Journal of arrhythmia)
[2020, 36(1):59-66]

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Wide QRS tachycardia associated with multiple accessory pathways in a patient with Wolff-Parkinson-White syndrome.

Toshihiro Nakamura, Gaku Kanda, Yoshihiro Sasaki, Rei Noda, Noritoshi Hiranuma, Keiko Sumimoto, Takashi Fujii,

The electrocardiogram of a 14-year-old boy with recurrent palpitation showed a wide QRS regular tachycardia with a right bundle branch block and right-axis deviation of 226 beats per minute. Verapamil infusion terminated the tachycardia after a few minutes. Electrophysiological study revealed that this tachycardia was considered as a reentrant tachycardia ... Read more >>

J Cardiol Cases (Journal of cardiology cases)
[2019, 20(6):191-196]

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High incidence of atrial fibrillation after successful catheter ablation of atrioventricular nodal reentrant tachycardia: a 15.5-year follow-up.

M K Frey, B Richter, M Gwechenberger, M Marx, T Pezawas, L Schrutka, H Gössinger,

Atrioventricular nodal reentrant tachycardia (AVNRT) is the most common type of supraventricular tachycardia. Slow pathway (SP) ablation is the treatment of choice with a high acute success rate and a negligible periprocedural risk. However, long-term outcome data are scarce. The aim of this study was to assess long-term outcome and ... Read more >>

Sci Rep (Scientific reports)
[2019, 9(1):11784]

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Atrioventricular Nodal Reentrant Tachycardia Triggered by Marijuana Use: A Case Report and Review of the Literature.

Pramod Theetha Kariyanna, Apoorva Jayarangaiah, Oleg Yurevich, Jonathan Francois, Denis Yusupov, Angelina Zhyvotovska, Louis Salciccioli, Sudhanva Hegde, Samy I McFarlane,

Marijuana is the most commonly abused recreational substance. With the increasing legalization of marijuana, its use is expected to rise. Delta-9-tetrahydrocannabinol (THC) is the psychotropic component of marijuana, acting via CB1 and CB2 G-protein coupled cannabinoid receptors. Marijuana has serious cardiovascular effects including tachycardia, orthostatic hypotension, angina and myocardial infarction ... Read more >>

Am J Med Case Rep (American journal of medical case reports)
[2019, 7(9):193-196]

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High-rate episodes with simultaneous atrial and ventricular activation in a patient with permanent pacemaker implantation for complete heart block.

Saurabh Ajit Deshpande, Ameya Udyavar,

HeartRhythm Case Rep (HeartRhythm case reports)
[2020, 6(2):67-71]

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A V-A-V response during induction of supraventricular tachycardia: What is the mechanism?

Yoshiaki Kaneko, Tadashi Nakajima, Shuntaro Tamura, Hiroshi Hasegawa, Masahiko Kurabayashi,

J Arrhythm (Journal of arrhythmia)
[2019, 35(4):692-695]

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Multiple Shifts of the Earliest Retrograde Atrial Activation Site Along the Tricuspid Annulus During the Fast-Slow Form of Atrioventricular Nodal Reentrant Tachycardia by Radiofrequency Modification.

Masato Okada, Koji Tanaka, Yasuharu Matsunaga-Lee, Yuichi Ninomiya, Yuko Hirao, Takafumi Oka, Nobuaki Tanaka, Hiroyuki Inoue, Katsuomi Iwakura, Kenshi Fujii, Koichi Inoue,

A 70-year-old woman was admitted for treatment of supraventricular tachycardia. Ventriculoatrial conduction was revealed through programmed ventricular stimulation; the coronary sinus ostium (CSos) was the earliest atrial activation site. The fast-slow forms of atrioventricular nodal reentrant tachycardia (AVNRT) were induced by ventricular extra-stimuli. During tachycardia, the earliest atrial activation site ... Read more >>

Int Heart J (International heart journal)
[2019, 60(3):761-767]

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Pediatrics and GUCHs.

J Arrhythm (Journal of Arrhythmia)
[2019, 35(Suppl 1):693-711]

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Response to His-refractory premature atrial complex with antegrade and retrograde septal depolarization: What is the mechanism?

Ahmet Korkmaz, Ozcan Ozeke, Serkan Cay, Firat Ozcan, Serhat Koca, Emin Karimli, Meryem Kara, Mursel Sahin, Dursun Aras, Serkan Topaloglu,

J Arrhythm (Journal of arrhythmia)
[2019, 35(5):776-778]

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Permanent junctional reciprocating tachycardia in infants and Children.

Ranjit I Kylat, Ricardo A Samson,

Permanent junctional reciprocating tachycardia (PJRT) is a rare form of supraventricular tachycardia (SVT). It generally presents in infants but can be difficult to diagnose. The characteristic EKG findings, response to Adenosine and persistence or frequent recurrences are helpful in making the diagnosis. It is usually difficult to manage with the ... Read more >>

J Arrhythm (Journal of arrhythmia)
[2019, 35(3):494-498]

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State of the Science in Women's Cardiovascular Disease: A Canadian Perspective on the Influence of Sex and Gender.

Colleen M Norris, Cindy Y Y Yip, Kara A Nerenberg, Marie-Annick Clavel, Christine Pacheco, Heather J A Foulds, Marsha Hardy, Christine A Gonsalves, Shahin Jaffer, Monica Parry, Tracey J F Colella, Abida Dhukai, Jasmine Grewal, Jennifer A D Price, Anna L E Levinsson, Donna Hart, Paula J Harvey, Harriette G C Van Spall, Hope Sarfi, Tara L Sedlak, Sofia B Ahmed, Carolyn Baer, Thais Coutinho, Jodi D Edwards, Courtney R Green, Amy A Kirkham, Kajenny Srivaratharajah, Sandra Dumanski, Lisa Keeping-Burke, Nadia Lappa, Robert D Reid, Helen Robert, Graeme Smith, Michelle Martin-Rhee, Sharon L Mulvagh,

J Am Heart Assoc (Journal of the American Heart Association)
[2020, 9(4):e015634]

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Coronary PCI revascularization novel treatment of bundle branch reentrant ventricular tachycardia.

Sonia Marrakchi, Lobna Laroussi, Emna Bennour, Ikram Kammoun, Salem Kachboura,

Bundle branch reentrant ventricular tachycardia (VT) is a form of macroreentrant tachycardia. Although infrequent in occurrence, this arrhythmia presents with serious clinical manifestations and has potential for cure by catheter ablation. We report a case of bundle branch reentrant VT with ischemic source. Revascularization of culprit coronary artery was another ... Read more >>

J Cardiol Cases (Journal of cardiology cases)
[2019, 20(5):151-154]

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Coronary sinus cannulation predicts atrioventricular nodal reentry as mechanism of supraventricular tachycardia.

Tiago Luiz Luz Leiria, Mauricio Branchi, Roberto Tofani Sant'anna, Eduardo Dytz Almeida, Leonardo Martins Pires, Marcelo Lapa Kruse, Vidal Essebag, Marco Aurélio Lumertz Saffi, Gustavo Glotz de Lima,

INTRODUCTION:Common clinical teaching, for invasive electrophysiology, is that if the first year fellow cannulates the coronary sinus (CS) in his first attempt, the arrhythmia is more likely to be atrioventricular nodal reentry tachycardia (AVNRT). This general perception has not yet been clinically tested. We evaluated this theory in prospective patients ... Read more >>

Indian Pacing Electrophysiol J (Indian pacing and electrophysiology journal)
[2019, 19(5):178-182]

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