keyword
Keywords Atrioventricular nodal reentra...

Atrioventricular nodal reentrant tachycardia ablation

https://read.qxmd.com/read/37727989/reversible-pulsed-electrical-fields-as-an-in-vivo-tool-to-study-cardiac-electrophysiology-the-advent-of-pulsed-field-mapping
#21
JOURNAL ARTICLE
Jacob S Koruth, Petr Neuzil, Iwanari Kawamura, Kenji Kuroki, Jan Petru, Gediminas Rackauskas, Moritoshi Funasako, Audrius Aidietis, Vivek Y Reddy
BACKGROUND: During electrophysiological mapping of tachycardias, putative target sites are often only truly confirmed to be vital after observing the effect of ablation. This lack of mapping specificity potentiates inadvertent ablation of innocent cardiac tissue not relevant to the arrhythmia. But if myocardial excitability could be transiently suppressed at critical regions, their suitability as targets could be conclusively determined before delivering tissue-destructive ablation lesions...
October 2023: Circulation. Arrhythmia and Electrophysiology
https://read.qxmd.com/read/37714263/novel-method-to-avoid-serious-injurious-effects-on-the-atrioventricular-nodal-avn-conduction-during-catheter-ablation-of-the-avn-slow-pathway-utilizing-cryofreezing-energy
#22
JOURNAL ARTICLE
Kaoru Okishige, Shinichi Tachibana, Takatoshi Shigeta, Yasuteru Yamauchi, Kaoru Tanno, Kenzo Hirao, Tetsuo Sasano
BACKGROUND: Slow pathway elimination of the atrioventricular node (AVN) is essential to treat AVN reentrant tachycardia (AVNRT). However, injury to the AVN conduction (IAVN) is one of the serious complications. Cryofreezing energy is expected to reduce the incidence of IAVN. This study aimed to investigate the usefulness of a novel method to avoid IAVN during cryoablation of AVNRT. METHODS: A total of 157 patients (average age, 65.8 years; male, 71) suffering from AVNRT were included...
September 13, 2023: Journal of Cardiology
https://read.qxmd.com/read/37652863/quality-of-life-among-patients-with-supraventricular-tachycardia-post-radiofrequency-cardiac-ablation-in-jordan
#23
JOURNAL ARTICLE
Mohammad Tayseer Al-Betar, Rami Masa'deh, Shaher H Hamaideh, Fatma Refaat Ahmed, Hajar Bakkali, Mohannad Eid AbuRuz
BACKGROUND: Supraventricular tachycardia (SVT) is a common arrhythmia with associated symptoms such as palpitation, dizziness, and fatigue. It significantly affects patients' quality of life (QoL). Radiofrequency cardiac ablation (RFCA) is a highly effective treatment to eliminate arrhythmia and improve patients' QoL. The purpose of this study was to assess the level of QoL among patients with SVT and examine the difference in QoL before and after RFCA. METHODS: One group pre-posttest design with a convenience sample of 112 patients was used...
August 2023: Acute and critical care
https://read.qxmd.com/read/37638389/identification-of-human-ventricular-tachycardia-demarcated-by-fixed-lines-of-conduction-block-in-a-3-dimensional-hyperboloid-circuit
#24
JOURNAL ARTICLE
Takuro Nishimura, Nathan Shatz, Peter Weiss, Michael Zawaneh, Rong Bai, Andrew D Beaser, Gaurav A Upadhyay, Zaid A Aziz, Hemal M Nayak, Dalise Y Shatz, Shinsuke Miyazaki, Masahiko Goya, Tetsuo Sasano, Wilber Su, Michael Raiman, Roderick Tung
BACKGROUND: The circuit boundaries for reentrant ventricular tachycardia (VT) have been historically conceptualized within a 2-dimensional (2D) construct, with their fixed or functional nature unresolved. This study aimed to examine the correlation between localized lines of conduction block (LOBs) evident during baseline rhythm with lateral isthmus boundaries that 3-dimensionally constrain the VT isthmus as a hyperboloid structure. METHODS: A total of 175 VT activation maps were correlated with isochronal late activation maps during baseline rhythm in 106 patients who underwent catheter ablation for scar-related VT from 3 centers (42% nonischemic cardiomyopathy)...
August 28, 2023: Circulation
https://read.qxmd.com/read/37560116/zero-fluoroscopy-ablation-for-atrioventricular-nodal-reentrant-tachycardia-and-typical-atrial-flutter-is-equally-safe-and-effective-with-ensite-navx-carto3-and-rhythmia-mapping-systems
#25
JOURNAL ARTICLE
Katalin Piros, Péter Perge, Zoltán Salló, Szilvia Herczeg, Vivien Klaudia Nagy, István Osztheimer, Béla Merkely, László Gellér, Nándor Szegedi
PURPOSE: Our purpose was to compare the procedural characteristics, success rate, and complication rate of the conventional fluoroscopic (CF) and the zero-fluoroscopic (ZF) approach in patients undergoing catheter ablation of AVNRT or typical atrial flutter (Aflu). METHODS: 186 consecutive patients with an indication for AVNRT or Aflu ablation were enrolled. Based on the operator's preference, the patients were assigned to either CF or ZF group. In the ZF group EnSite NavX, Carto3, or Rhythmia EAMS were used for catheter guidance...
2023: Frontiers in Cardiovascular Medicine
https://read.qxmd.com/read/37469484/automatic-algorithmic-driven-monitoring-of-atrioventricular-nodal-re-entrant-tachycardia-ablation-to-improve-procedural-safety
#26
JOURNAL ARTICLE
Tsz Kin Tam, Angel Lai, Joseph Y S Chan, Alex C K Au, Chin Pang Chan, Yuet Wong Cheng, Bryan P Yan
BACKGROUND: During slow pathway modification for atrioventricular nodal reentrant tachycardia, heart block may occur if ablation cannot be stopped in time in response to high risk electrogram features (HREF). OBJECTIVES: To develop an automatic algorithm to monitor HREF and terminate ablation earlier than human reaction. METHODS: Digital electrogram data from 332 ablation runs from February 2020 to June 2022 were included. They were divided into training and validation sets which contained 126 and 206 ablation runs respectively...
2023: Frontiers in Cardiovascular Medicine
https://read.qxmd.com/read/37343063/junctional-rhythm-during-cryoablation-for-typical-atrioventricular-nodal-reentrant-tachycardia
#27
JOURNAL ARTICLE
Masahiro Nakano, Yusuke Kondo, Takatsugu Kajiyama, Miyo Nakano, Ryo Ito, Mari Kitagawa, Masafumi Sugawara, Toshinori Chiba, Satoko Ryuzaki, Yutaka Yoshino, Yuya Komai, Yukiko Takanashi, Yoshio Kobayashi
INTRODUCTION: Cryoablation is being used as an alternative to radiofrequency (RF) ablation for atrioventricular nodal reentrant tachycardia (AVNRT) owing to the lower risk of atrioventricular block (AVB) compared to RF ablation. Junctional rhythm often occurs during successful application of RF ablation for AVNRT. In contrast, junctional rhythm has rarely been reported to occur during cryoablation. This retrospective study evaluated the characteristics of junctional rhythm during cryoablation for typical AVNRT...
June 21, 2023: Journal of Cardiovascular Electrophysiology
https://read.qxmd.com/read/37327167/common-types-of-supraventricular-tachycardia-diagnosis-and-management
#28
JOURNAL ARTICLE
Munima Nasir, Ashley Sturts, Adam Sturts
Supraventricular tachycardia (SVT) is an abnormal rapid cardiac rhythm that involves atrial or atrioventricular node tissue from the His bundle or above. Paroxysmal SVT, a subset of supraventricular dysrhythmias, has three common types: atrioventricular nodal reentrant tachycardia, atrioventricular reentrant tachycardia, and atrial tachycardia. Presenting symptoms may include altered consciousness, chest pressure or discomfort, dyspnea, fatigue, lightheadedness, or palpitations. Diagnostic evaluation may be performed in the outpatient setting and includes a comprehensive history and physical examination, electrocardiography, and laboratory workup...
June 2023: American Family Physician
https://read.qxmd.com/read/37311982/activation-pattern-within-koch-s-triangle-during-sinus-rhythm-in-patients-with-and-without-atrioventricular-nodal-reentrant-tachycardia
#29
JOURNAL ARTICLE
Koichiro Kumagai, Hideko Toyama
BACKGROUND: Several studies have visualized the slow pathway during sinus rhythm using high-density mapping of Koch's triangle (KT) in patients with atrioventricular nodal reentrant tachycardia (AVNRT). However, it is unclear whether the slow pathway can be visualized in all people. Therefore, we evaluated the activation pattern within KT during sinus rhythm in patients with and without AVNRT. METHODS: High-density mapping using the Advisor HD Grid mapping catheter (Abbott) within KT during sinus rhythm was created in 10 patients with slow-fast AVNRT and 30 patients without AVNRT...
June 13, 2023: Journal of Interventional Cardiac Electrophysiology: An International Journal of Arrhythmias and Pacing
https://read.qxmd.com/read/37307208/-evaluation-of-the-operator-learning-curve-for-radiofrequency-ablation-for-atrioventricular-nodal-reentrant-tachycardia
#30
JOURNAL ARTICLE
Ayhan Küp, Mehmet Celik, Alper Kepez, Serdar Demir, Kamil Gulsen, Mehmet Ozgeyik, Batur Gonenc Kanar, Ali Karagoz, Cagan Yildirim, Muhammmed Rasit Tanircan, Taylan Akgun, Abdulkadir Uslu
Aim    The aim of this study was to determine the average minimum number of slow pathway ablation procedures required to reach a steady success rate among inexperienced operators.Material and Methods    We analyzed the consecutive AVNRT ablation procedures of three inexperienced operators for the rate of operational success and complications.Results    Operators performed a total of 156 AVNRT ablation procedures. There was no statistical significance between the three operators regarding the rate of success (p=0...
May 31, 2023: Kardiologiia
https://read.qxmd.com/read/37293820/ethanol-infusion-in-left-atrial-appendage-vein-for-treating-refractory-left-atrial-appendage-tachycardia
#31
Fabien Squara, Didier Scarlatti, Delphine Baudouy, Sok-Sithikun Bun, Pamela Moceri, Emile Ferrari
INTRODUCTION: We describe an unusual case of atrial tachycardia (AT) emanating from the left atrial appendage body (LAA), successfully treated by chemical ablation. METHODS: A 66-year-old patient with cardiac amyloidosis and history of persistent atrial fibrillation ablation presented poorly tolerated AT with 1:1 atrioventricular nodal conduction at 135/min, despite amiodarone therapy. Three-dimensional mapping suggested a reentrant AT from the anterior aspect of the left LAA...
July 2023: Journal of Cardiovascular Electrophysiology
https://read.qxmd.com/read/37227130/pathophysiology-and-treatment-of-adults-with-arrhythmias-in-the-emergency-department-part-1-atrial-arrhythmias
#32
JOURNAL ARTICLE
Lance Ray, Curtis Geier, Kyle M DeWitt
PURPOSE: This article, the first in a 2-part review, aims to reinforce current literature on the pathophysiology of cardiac arrhythmias and various evidence-based treatment approaches and clinical considerations in the acute care setting. Part 1 of this series focuses on atrial arrhythmias. SUMMARY: Arrhythmias are prevalent throughout the world and a common presenting condition in the emergency department (ED) setting. Atrial fibrillation (AF) is the most common arrhythmia worldwide and expected to increase in prevalence...
August 4, 2023: American Journal of Health-system Pharmacy: AJHP
https://read.qxmd.com/read/37225476/fractionated-potential-guided-slow-pathway-ablation-for-slow-fast-atrioventricular-nodal-reentrant-tachycardia-in-a-patient-with-persistent-left-superior-vena-cava-using-ultra-high-density-mapping
#33
JOURNAL ARTICLE
Akio Chikata, Takeshi Kato, Kazuo Usuda, Masayuki Takamura
No abstract text is available yet for this article.
May 23, 2023: Circulation Journal: Official Journal of the Japanese Circulation Society
https://read.qxmd.com/read/36860746/diastolic-potentials-manifest-the-extension-of-a-slow-pathway-to-the-inferolateral-right-atrium-during-fast-slow-atrioventricular-nodal-reentrant-tachycardia
#34
Hideyuki Hasebe, Yoshitaka Furuyashiki, Kentaro Yoshida, Akira Fujiki, Akihiko Nogami
No abstract text is available yet for this article.
February 2023: HeartRhythm Case Reports
https://read.qxmd.com/read/36853162/-2020-catheter-ablation-registry-of-the-italian-association-of-arrhythmology-and-cardiac-pacing
#35
JOURNAL ARTICLE
Giuseppe Stabile, Federico Guerra, Gianfranco Tola, Pasquale Vergara, Michele Accogli, Matteo Bertini, Giovanni Bisignani, Giovanni Battista Forleo, Carlo Lavalle, Pasquale Notarstefano, Gabriele Zanotto, Maurizio Landolina, Giuseppe Boriani, Renato Pietro Ricci, Antonio D'Onofrio, Roberto De Ponti
BACKGROUND: This report describes the findings of the 2020 Italian Catheter Ablation Registry of the Italian Association of Arrhythmology and Cardiac Pacing (AIAC). METHODS: Data collection was retrospective. A standardized questionnaire was completed by each of the participating centers. RESULTS: A total of 10 378 ablation procedures were performed by 66 institutions. Most centers (70%) have an electrophysiology laboratory, and 23% a hybrid cardiac surgery laboratory...
March 2023: Giornale Italiano di Cardiologia
https://read.qxmd.com/read/36794306/atrial-echo-beats-as-a-novel-mechanism-of-periodic-fluctuation-in-cycle-length-of-atrial-tachycardia
#36
Satoru Sekimoto, Yoshimasa Murakami, Yoshihiro Seo
Atrial echo beats due to a dual-atrioventricular nodal pathway are a possible cause of fluctuating tachycardia in cycle length (CL) but have not been reported so far. Here, we present a case of an 82-year-old man with symptomatic atrial tachycardia (AT), which was accompanied by periodic fluctuations in atrial sequence at the coronary sinus. Electrophysiological study (EPS) for atrioventricular conduction and three-dimensional (3D) electro-anatomical mapping system explained that the mechanism of periodic fluctuations was due to atrial echo beats through a dual-atrioventricular nodal pathway...
September 2023: Pacing and Clinical Electrophysiology: PACE
https://read.qxmd.com/read/36751286/catheter-ablation-for-tachyarrhythmias-during-pregnancy
#37
REVIEW
Shi-Min Yuan
INTRODUCTION: Refractory arrhythmias during pregnancy pose challenges to physicians. AIM: To give an overview of catheter ablation for tachyarrhythmias during pregnancy, and to discuss the indications of the procedure and the outcomes of both mother and fetus. MATERIAL AND METHODS: The study materials were based on comprehensive literature retrieval of the pertinent articles published since 2000. RESULTS: The indications for catheter ablation were refractory arrhythmias unresponsive to drug therapy in most of the cases followed by requirement of cardioversion...
September 2022: Postępy W Kardiologii Interwencyjnej, Advances in Interventional Cardiology
https://read.qxmd.com/read/36738141/catheter-ablation-of-atrioventricular-nodal-reentrant-tachycardia-with-an-irrigated-contact-force-sensing-radiofrequency-ablation-catheter
#38
JOURNAL ARTICLE
Priya Panday, Douglas Holmes, David S Park, Lior Jankelson, Scott A Bernstein, Robert Knotts, Alexander Kushnir, Anthony Aizer, Larry A Chinitz, Chirag R Barbhaiya
INTRODUCTION: Radiofrequency ablation (RFA) slow pathway modification for catheter ablation of AV nodal reentrant tachycardia (AVNRT) is traditionally performed using a 4mm, non-irrigated (NI) RF ablation catheter. Slow pathway modification using irrigated, contact-force sensing (ICFS) RFA catheters has been described in case reports, but outcomes have not been systematically evaluated. METHODS: Acute procedural outcomes of 200 consecutive patients undergoing slow pathway modification for AVNRT were analyzed...
February 4, 2023: Journal of Cardiovascular Electrophysiology
https://read.qxmd.com/read/36675339/spontaneous-variation-of-ventriculo-atrial-interval-after-tachycardia-induction-determinants-and-usefulness-in-the-diagnosis-of-supraventricular-tachycardias-with-long-ventriculoatrial-interval
#39
JOURNAL ARTICLE
Olga Durán-Bobin, Jesús Hernández, José Moríñigo, Manuel Sánchez-García, Loreto Bravo, Javier Fernández-Portales, Armando Oterino, Alba Cruz, Carlos González-Juanatey, Pedro L Sánchez, Javier Jiménez-Candil
BACKGROUND: Determining the mechanism of supraventricular tachycardias with prolongedP ventriculoatrial (VA) intervals is sometimes a challenge. Our objective is to analyse the determinants, time course and diagnostic accuracy (atypical atrioventricular nodal reentrant tachycardias [AVNRT] versus orthodromic reentrant tachycardias through an accessory pathway [ORT]) of spontaneous VA intervals variation in patients with narrow QRS tachycardias and prolonged VA. METHODS: A total of 156 induced tachycardias were studied (44 with atypical AVNRT and 112 with ORT)...
January 4, 2023: Journal of Clinical Medicine
https://read.qxmd.com/read/36626431/st-segment-depression-in-atrioventricular-nodal-reentrant-tachycardia-important-finding-or-just-an-artifact
#40
JOURNAL ARTICLE
Jakub Mercik, Jadwiga Radziejewska, Katarzyna Pach, Grzegorz Zawadzki, Dorota Zyśko, Jacek Gajek
BACKGROUND: The ST segment is component of the QRS-T complex located between the QRS and the T wave. ST segment changes during tachycardia with narrow QRS mainly takes the form of ST segment depression. This phenomenon is often observed in young healthy people for whom an ischemic background is unlikely. MATERIALS AND METHODS: The study included 104 patients (71 women and 33 men) with paroxysmal narrow QRS complex tachycardia. In all patients electrophysiological study was performed and the diagnosis of atrioventricular nodal reentrant tachycardia was established...
December 9, 2022: Medicine (Baltimore)
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