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Fascicular ventricular tachycardia

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https://www.readbyqxmd.com/read/29226995/change-in-qrs-morphology-as-a-marker-of-spontaneous-elimination-in-verapamil-sensitive-idiopathic-left-ventricular-tachycardia
#1
Hiroshi Kawakami, Takeshi Aiba, Kohei Ishibashi, Ikutaro Nakajima, Mitsuru Wada, Tsukasa Kamakura, Yuko Inoue, Koji Miyamoto, Hideo Okamura, Satoshi Nagase, Takashi Noda, Yoshihiro Kokubo, Yoshihiro Miyamoto, Satoshi Yasuda, Shiro Kamakura, Kengo Kusano
BACKGROUND: Verapamil-sensitive idiopathic left ventricular tachycardia (verapamil-ILVT) is thought to be due to a reentry within the LV fascicular system. Radiofrequency catheter ablation (RFCA) is effective for elimination of the VT; however, a long-term prognosis of patients with verapamil-ILVT is still unclear. METHODS AND RESULTS: Eighty consecutive verapamil-ILVT patients (62 men, 31±12 years-of-age, LVEF: 65±4%) were enrolled. Seventy-six (95%) cases of VT involved right bundle brunch block and left axis deviation...
December 11, 2017: Journal of Cardiovascular Electrophysiology
https://www.readbyqxmd.com/read/29184614/idiopathic-fascicular-left-ventricular-tachycardia
#2
Yaser Alahmad, Nidal Ahmad Asaad, Salaheddin Omran Arafa, Shahul Hameed Ahmad Khan, Alsayed Mahmoud
Idiopathic left fascicular ventricular tachycardia (ILFVT) is characterized by right bundle branch block morphology and left axis deviation. We report a case of idiopathic left ventricular fascicular tachycardia in a young 31-year-old male patient presenting with a narrow complex tachycardia.
July 2017: Heart Views: the Official Journal of the Gulf Heart Association
https://www.readbyqxmd.com/read/29138142/catheter-ablation-of-idiopathic-left-posterior-fascicular-ventricular-tachycardia-predicting-the-site-of-origin-via-mapping-and-electrocardiography
#3
Wei Ma, Fengmin Lu, Michael Shehata, Xunzhang Wang, Fan Zhang, Bingwei Chen, Dongyan Wu, Le He, Shan Sun, Aijuan Cheng, Jun Ding, Hongliang Cong, Jing Xu
BACKGROUND: We report the 12-lead ECG morphology of left posterior fascicular ventricular tachycardia (LPF-VT) and the relationship between His-ventricular (HV) interval and site of origin in LPF-VT. METHODS AND RESULTS: We studied 41 patients who underwent successful catheter ablation of LPF-VT with HV interval >0 ms (n=8; proximal-LPF group), HV interval 0 to -15 ms (n=15; middle-LPF group), and HV interval <-15 ms (n=18; distal-LPF group). The earliest mapped presystolic potential (PP)-QRS interval was 34...
November 2017: Circulation. Arrhythmia and Electrophysiology
https://www.readbyqxmd.com/read/28899957/electrocardiographic-findings-of-fascicular-ventricular-tachycardia-versus-supraventricular-tachycardia-with-aberrancy-why-the-difference
#4
EDITORIAL
Joshua D Moss, Melvin M Scheinman
No abstract text is available yet for this article.
September 2017: Circulation. Arrhythmia and Electrophysiology
https://www.readbyqxmd.com/read/28899954/differentiating-the-qrs-morphology-of-posterior-fascicular-ventricular-tachycardia-from-right-bundle-branch-block-and-left-anterior-hemiblock-aberrancy
#5
MULTICENTER STUDY
Yoav Michowitz, Oholi Tovia-Brodie, Ishai Heusler, Avi Sabbag, Michael Rahkovich, Hezzy Shmueli, Aharon Glick, Bernard Belhassen
BACKGROUND: Left posterior fascicular ventricular tachycardia (LPF-VT) is frequently misdiagnosed as supraventricular tachycardia with aberrant right bundle branch block (RBBB) and left anterior hemiblock (LAHB). The purpose of the present study was to define the morphological ECG characteristics of LPF-VT and attempt to differentiate it from RBBB and LAHB aberrancy. METHODS AND RESULTS: A systematic Medline search was used to identify or locate ECG tracings from patients with LPF-VTs...
September 2017: Circulation. Arrhythmia and Electrophysiology
https://www.readbyqxmd.com/read/28767385/left-anterior-descending-coronary-artery-dissection-during-ventricular-tachycardia-ablation-case-report
#6
Kordic Kresimir, Manola Sime, Zeljkovic Ivan, Benko Ivica, Pavlovic Nikola
Fascicular left ventricular tachycardia (VT) is the second most frequent idiopathic left VT in the setting of a structurally normal heart. Catheter ablation is curative in most patients with low complication rates. We report a case of ostial left anterior descending coronary artery (LAD) occlusion during fascicular ventricular tachycardia ablation. Dissection was the most likely cause of LAD obstruction. To the authors' best knowledge, this is the first case reporting selective LAD dissection during electrophysiology study with no left main coronary artery (LMCA) affection...
July 26, 2017: Romanian Journal of Internal Medicine, Revue Roumaine de Médecine Interne
https://www.readbyqxmd.com/read/28749010/radiofrequency-ablation-of-fast-ventricular-tachycardia-causing-an-icd-storm-in-an-infant-with-hypertrophic-cardiomyopathy
#7
Yakup Ergul, Isa Ozyilmaz, Meki Bilici, Erkut Ozturk, Sertaç Haydin, Alper Guzeltas
An implantable cardioverter defibrillator (ICD) storm involves very frequent arrhythmia episodes and ICD shocks, and it is associated with poor short-term and long-term prognosis. Radiofrequency catheter ablation (RFCA) can be used as an effective rescue treatment for patients with an ICD storm. To our knowledge, this is the first report of an infant with HCM presenting with an ICD storm and undergoing successful radiofrequency catheter ablation salvage treatment for the fast left posterior fascicular VT. This article is protected by copyright...
July 27, 2017: Pacing and Clinical Electrophysiology: PACE
https://www.readbyqxmd.com/read/28361212/catheter-ablation-of-a-left-posterior-fascicular-ventricular-tachycardia-guided-by-a-novel-high-resolution-multipolar-mapping-catheter
#8
Giulio Conte, Maria Luce Caputo, François Regoli, Tiziano Moccetti, Angelo Auricchio
No abstract text is available yet for this article.
June 2017: Journal of Interventional Cardiac Electrophysiology: An International Journal of Arrhythmias and Pacing
https://www.readbyqxmd.com/read/28294644/electrocardiogram-changes-and-atrial-arrhythmias-in-individuals-carrying-sodium-channel-scn5a-d1275n-mutation
#9
Sari U M Vanninen, Kjell Nikus, Katriina Aalto-Setälä
INTRODUCTION: The cardiac sodium channel SCN5A regulates atrioventricular and ventricular depolarization as well as cardiac conduction. Patients with cardiac electrical abnormalities have an increased risk of sudden cardiac death (SCD) and cardio-embolic stroke. Optimal management of cardiac disease includes the understanding of association between the causative mutations and the clinical phenotype. A 12-lead electrocardiogram (ECG) is an easy and inexpensive tool for finding risk patients...
April 17, 2017: Annals of Medicine
https://www.readbyqxmd.com/read/28292752/fascicular-ventricular-tachycardia-originating-from-papillary-muscles-purkinje-network-involvement-in-the-reentrant-circuit
#10
COMPARATIVE STUDY
Yuki Komatsu, Akihiko Nogami, Kenji Kurosaki, Itsuro Morishima, Keita Masuda, Tomoya Ozawa, Takashi Kaneshiro, Yuichi Hanaki, Yasutoshi Shinoda, Ahmed Karim Talib, Shinya Kowase, Yukio Sekiguchi, Kazutaka Aonuma
BACKGROUND: Verapamil-sensitive fascicular ventricular tachycardia (FVT) has been demonstrated to be a reentrant mechanism using the Purkinje network as a part of its reentrant circuit. Although the papillary muscles (PMs) are implicated in arrhythmogenic structure, reentrant FVT originating from the PMs has not been well defined. METHODS AND RESULTS: We studied 13 patients in whom FVT was successfully eliminated by ablation at the posterior PMs (n=8; PPM-FVT) and anterior PMs (n=5; APM-FVT)...
March 2017: Circulation. Arrhythmia and Electrophysiology
https://www.readbyqxmd.com/read/28238349/long-term-outcome-of-catheter-ablation-for-left-posterior-fascicular-ventricular-tachycardia-with-the-development-of-left-posterior-fascicular-block-and-characteristics-of-repeat-procedures
#11
Bin Luo, Gongbu Zhou, Xiaogang Guo, Xu Liu, Jiandu Yang, Qi Sun, Jian Ma, Shu Zhang
OBJECTIVE: The present study aimed to retrospectively investigate long-term clinical outcomes of patients undergoing catheter ablation of left posterior fascicular ventricular tachycardia (LPF-VT) with the development of left posterior fascicular block (LPF block) and characteristics of repeat procedures. METHODS AND RESULTS: A total of 195 patients (mean age 29.76±1.03years, 16.4% females) who underwent catheter ablation for LPF-VT were consecutively enrolled...
June 1, 2017: International Journal of Cardiology
https://www.readbyqxmd.com/read/28218443/atrial-entrainment-during-posterior-fascicular-ventricular-tachycardia
#12
Krishna Kumar Mohanan Nair, Narayanan Namboodiri, Anees Thajudeen, Krishna Chaitanya, Sreevilasam Pushpangadhan Abhilash, Ajitkumar Valaparambil
No abstract text is available yet for this article.
June 2017: Journal of Cardiovascular Electrophysiology
https://www.readbyqxmd.com/read/28160481/clinical-electrocardiographic-and-electrophysiological-characteristics-of-left-upper-septal-fascicular-ventricular-tachycardia
#13
Xiao-Gang Guo, Xu Liu, Gong-Bu Zhou, Qi Sun, Jian-Du Yang, Bin Luo, Feifan Ouyang, Jian Ma, Shu Zhang
No abstract text is available yet for this article.
February 4, 2017: Europace: European Pacing, Arrhythmias, and Cardiac Electrophysiology
https://www.readbyqxmd.com/read/28130377/different-directions-of-conduction-of-fascicular-potential-and-ventricular-potential-during-left-posterior-fascicular-ventricular-tachycardia-ablation-what-is-the-mechanism
#14
Shih-Jie Jhuo, Yenn-Jiang Lin, Shih-Ann Chen
No abstract text is available yet for this article.
January 2017: Europace: European Pacing, Arrhythmias, and Cardiac Electrophysiology
https://www.readbyqxmd.com/read/27810292/special-electrophysiological-characteristics-of-pediatric-idiopathic-ventricular-tachycardia
#15
Shuenn-Nan Chiu, Wei-Lun Wu, Chun-Wei Lu, Kun-Lang Wu, Wei-Chieh Tseng, Ming-Tai Lin, Chien-Chih Chang, Jou-Kou Wang, Mei-Hwan Wu
BACKGROUND: Idiopathic ventricular tachycardia (VT) is an important pediatric arrhythmia but relevant studies in Asian cohort are rare. We determined the electrophysiological characteristics and outcomes of this rhythm disturbance. METHODS: From an institutional database, patients aged <18years without structural heart disease who have sustained monomorphic VT (longer than 30s) during 1995-2016 were enrolled. RESULTS: We enrolled 57 idiopathic VT patients (male:female=31:26)...
January 15, 2017: International Journal of Cardiology
https://www.readbyqxmd.com/read/27763695/use-of-new-imaging-carto%C3%A2-segmentation-module-software-to-facilitate-ablation-of-ventricular-arrhythmias
#16
Oholi Tovia-Brodie, Bernard Belhassen, Aharon Glick, Haim Shmilovich, Galit Aviram, Raphael Rosso, Yoav Michowitz
INTRODUCTION: A new imaging software (CARTO® Segmentation Module, Biosense Webster) allows preprocedural 3-D reconstruction of all heart chambers based on cardiac CT. We describe our initial experience with the new module during ablation of ventricular arrhythmias. METHODS AND RESULTS: Eighteen consecutive patients with idiopathic ventricular arrhythmias or ischemic ventricular tachycardia (VT) were studied. In the latter group, a combined endocardial and epicardial ablation was performed...
February 2017: Journal of Cardiovascular Electrophysiology
https://www.readbyqxmd.com/read/27729344/non-reentrant-fascicular-tachycardia-clinical-and-electrophysiological-characteristics-of-a-distinct-type-of-idiopathic-ventricular-tachycardia
#17
Ahmed Karim Talib, Akihiko Nogami, Itsuro Morishima, Yasushi Oginosawa, Kenji Kurosaki, Shinya Kowase, Yuki Komatsu, Kenji Kuroki, Miyako Igarashi, Yukio Sekiguchi, Kazutaka Aonuma
BACKGROUND: The most common form of idiopathic Purkinje-related ventricular tachycardia (VT) is the reentrant type. We describe the clinical and electrophysiological characteristics of focal non-reentrant fascicular tachycardia. METHODS AND RESULTS: Among 530 idiopathic VT patients who were referred for ablation, we identified 15 (2.8%) with non-reentrant fascicular tachycardia (11 men, 45±21 years). Sinus rhythm ECG showed normal conduction intervals with a His-ventricular interval of 41±4 ms...
October 2016: Circulation. Arrhythmia and Electrophysiology
https://www.readbyqxmd.com/read/27635075/what-is-the-real-identity-of-the-mysterious-potential-p1-and-what-is-the-most-important-segment-of-the-fascicular-ventricular-tachycardia-circuit
#18
EDITORIAL
Akihiko Nogami
No abstract text is available yet for this article.
September 2016: Circulation. Arrhythmia and Electrophysiology
https://www.readbyqxmd.com/read/27635071/macroreentrant-loop-in-ventricular-tachycardia-from-the-left-posterior-fascicle-new-implications-for-mapping-and-ablation
#19
Qiang Liu, Michael Shehata, Ruhong Jiang, Lu Yu, Shiquan Chen, Jun Zhu, Ashkan Ehdaie, Ali A Sovari, Eugenio Cingolani, Sumeet S Chugh, Chenyang Jiang, Xunzhang Wang
BACKGROUND: The underlying mechanisms of reentry during left posterior fascicular ventricular tachycardia (LPF-VT) remain unclear. The purpose of this study is to describe the components of LPF-VT reentry circuit and their electrophysiological properties. METHODS AND RESULTS: Fourteen consecutive patients with LPF-VT underwent electrophysiology study and radiofrequency ablation. Via a multipolar electrode catheter placed from a retrograde aortic approach, a sharp inflection, high-frequency potential (P1) was detected in 9 patients (64%)...
September 2016: Circulation. Arrhythmia and Electrophysiology
https://www.readbyqxmd.com/read/27625168/mechanisms-of-posterior-fascicular-tachycardia-the-relationship-between-high-frequency-potentials-and-the-ventricular-myocardium
#20
Qiang Liu, Michael Shehata, Ruhong Jiang, Lu Yu, Jun Zhu, Ashkan Ehdaie, Eugenio Cingolani, Sumeet S Chugh, Chenyang Jiang, Xunzhang Wang
No abstract text is available yet for this article.
September 2016: Circulation. Arrhythmia and Electrophysiology
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