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Epicardial ablation

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https://www.readbyqxmd.com/read/29145303/epicardial-radiofrequency-catheter-ablation-of-brugada-syndrome-with-electrical-storm-during-ventricular-fibrillation-a-case-report
#1
Shufen Jiang, Xiaomeng Yin, Chang Dong, Yunlong Xia, Jinqiu Liu
RATIONALE: Brugada syndrome (BrS) is characterized by ST segment elevation at the J point ≥2 mm in the right precordial electrocardiogram (ECG) leads, in the absence of structural heart disease, electrolyte disturbances, or ischemia. It is a well-described cause of sudden death in young patients, especially in the age of between 30 and 40 years old. Here, we reported an unusual case of electrical storm (ES) of ventricular fibrillation (VF) caused by BrS with complete right bundle-branch block (CRBBB) in a 75-year-old male patient...
November 2017: Medicine (Baltimore)
https://www.readbyqxmd.com/read/29136152/concomitant-thoracoscopic-surgery-for-solitary-pulmonary-nodule-and-atrial-fibrillation
#2
Rongxin Lu, Ju Mei, Dongfang Zhao, Zhaolei Jiang, Haibo Xiao, Mingsong Wang, Nan Ma
OBJECTIVES: The incidence of both solitary pulmonary nodules (SPN) and non-valvular atrial fibrillation (NVAF) has increased over the past decade. We performed concomitant video-assisted thoracoscopic surgery with modified epicardial radiofrequency ablation procedure for NVAF and SPN resection. METHODS: Sixteen patients (7 men, mean age 62.6 ± 11.2 years) with SPN and NVAF underwent this procedure. Of these patients, 10 had paroxysmal atrial fibrillation and 6 persistent atrial fibrillation...
November 10, 2017: Interactive Cardiovascular and Thoracic Surgery
https://www.readbyqxmd.com/read/29133381/endocardial-unipolar-voltage-maps-to-identify-epicardial-circuits-during-ventricular-tachycardia-ablation-in-chagasic-cardiomyopathy-when-the-pot-of-gold-may-not-be-at-the-other-end-of-the-rainbow
#3
EDITORIAL
André Zimerman, Juan F Viles-Gonzalez, André d'Avila
No abstract text is available yet for this article.
November 2017: Circulation. Arrhythmia and Electrophysiology
https://www.readbyqxmd.com/read/29133379/ventricular-tachycardia-in-the-setting-of-chagasic-cardiomyopathy-use-of-voltage-mapping-to-characterize-endoepicardial-nonischemic-scar-distribution
#4
Richard Soto-Becerra, Victor Bazan, William Bautista, Federico Malavassi, Jhancarlo Altamar, Juan David Ramirez, Arlen Everth, David J Callans, Francis E Marchlinski, Diego Rodríguez, Fermin C García, Luis C Sáenz
BACKGROUND: Chagasic cardiomyopathy (CC) is the most frequent nonischemic substrate causing left ventricular (LV) tachycardia in Latin America. Systematic characterization of the LV epicardial/endocardial scar distribution and density in CC has not been performed. Additionally, the usefulness of unipolar endocardial electroanatomic mapping to identify epicardial scar has not been assessed in this setting. METHODS AND RESULTS: Nineteen patients with CC undergoing detailed epicardial and endocardial LV tachycardia mapping and ablation were included...
November 2017: Circulation. Arrhythmia and Electrophysiology
https://www.readbyqxmd.com/read/29132931/hybrid-surgical-versus-percutaneous-access-epicardial-ventricular-tachycardia-ablation
#5
Anthony Li, Justin Hayase, Duc Do, Eric Buch, Marmar Vaseghi, Olujimi A Ajijola, Carlos Macias, Yuliya Krokhaleva, Houman Khakpour, Noel G Boyle, Peyman Benharash, Reshma Biniwale, Kalyanam Shivkumar, Jason S Bradfield
BACKGROUND: There is limited experience of surgical epicardial access in the contemporary era of ventricular tachycardia ablation after prior cardiac surgery. OBJECTIVE: To describe our institutional experience with surgical epicardial access, the influence of surgical approach and compare outcomes to a propensity-matched percutaneous epicardial access control group. METHODS: A retrospective study of consecutive surgical epicardial VT ablation cases from a single center was performed...
November 10, 2017: Heart Rhythm: the Official Journal of the Heart Rhythm Society
https://www.readbyqxmd.com/read/29127542/left-atrial-function-after-epicardial-pulmonary-vein-isolation-in-patients-with-atrial-fibrillation
#6
Louise Bagge, Per Blomström, Lena Jidéus, Stefan Lönnerholm, Carina Blomström-Lundqvist
PURPOSE: Epicardial pulmonary vein isolation has become an increasingly used therapy for medically resistant atrial fibrillation. The purpose of the present study was therefore to evaluate if epicardial pulmonary vein isolation combined with ganglionated plexi ablation affects the size and mechanical function of the left atrium, and whether the effects are dependent on the extensiveness of the ablation applications. METHODS: A total of 42 patients underwent an echocardiographic examination prior to and 6 months after a minimal invasive epicardial pulmonary vein isolation procedure for the assessment of the effects on left atrial size and function...
November 10, 2017: Journal of Interventional Cardiac Electrophysiology: An International Journal of Arrhythmias and Pacing
https://www.readbyqxmd.com/read/29107175/entrapment-of-focal-atrial-tachycardia-using-cryoballoon-ablation-sinus-rhythm-in-the-left-atrium-and-ongoing-atrial-tachycardia-in-the-left-atrial-appendage
#7
Hikmet Yorgun, Uğur Canpolat, Banu Evranos, Kudret Aytemir
Left atrial appendage (LAA) is a well-known source of focal atrial tachycardias (AT). Although radio-frequency (RF) energy is the most commonly used technique in such cases, there was an option other than epicardial approach when RF technique fails. Cryoballoon technology is primarily developed to be used for pulmonary vein isolation (PVI). Also, there was no report regarding the isolation of LAA by using cryo-balloon in patients with focal AT. In this case, for the first time in the literature, we successfully isolated the LAA because of failed attempts of RF ablation for focal AT in whom the surface electrogram showed a sinus rhythm while arrhythmia continues inside the LAA...
October 28, 2017: Indian Pacing and Electrophysiology Journal
https://www.readbyqxmd.com/read/29049708/two-staged-hybrid-ablation-of-non-paroxysmal-atrial-fibrillation-clinical-outcomes-and-functional-improvements-after-1%C3%A2-year
#8
Petr Budera, Pavel Osmancik, David Talavera, Anna Kraupnerova, Richard Fojt, Jana Zdarska, Tomas Vanek, Zbynek Straka
OBJECTIVES: Hybrid ablation of atrial fibrillation (AF) is a promising treatment strategy; however, data regarding its efficacy and safety are still limited. METHODS: Patients with non-paroxysmal AF were enrolled. First, a thoracoscopic, epicardial isolation of pulmonary veins and the left atrial posterior wall ('box lesion') was performed; a novel unipolar/bipolar radiofrequency device was used. Moreover, in 12 patients enrolled thereafter, the left atrial appendage was occluded...
July 31, 2017: Interactive Cardiovascular and Thoracic Surgery
https://www.readbyqxmd.com/read/29046505/bipolar-endo-epicardial-radiofrequency-ablation-of-arrhythmia-originating-from-the-left-ventricular-summit
#9
Piotr Futyma, Agnieszka Wysokińska, Jarosław Sander, Marian Futyma, Piotr Kułakowski
No abstract text is available yet for this article.
October 18, 2017: Circulation Journal: Official Journal of the Japanese Circulation Society
https://www.readbyqxmd.com/read/29025548/percutaneous-therapy-in-pericardial-diseases
#10
REVIEW
Bernhard Maisch, Arsen D Ristić, Sabine Pankuweit, Petar Seferovic
Interventional procedures for pericardial diseases include pericardiocentesis, drainage of pericardial effusion, intrapericardial therapy, and percutaneous balloon pericardiotomy or percutaneous pericardiostomy. Echocardiographic and fluoroscopic guidance have greatly increased safety and feasibility. Several devices for pericardiocentesis have been tested (PerDucer, PeriAttacher, visual puncture systems, Grasper, Scissors, and Reverse slitter), mainly to facilitate access to the pericardium in the absence of effusion for epicardial ablations or left atrial appendage ligation...
November 2017: Cardiology Clinics
https://www.readbyqxmd.com/read/29018165/catheter-ablation-of-the-superolateral-mitral-isthmus-line-a-novel-approach-to-reduce-the-need-for-epicardial-ablation
#11
Tilman Maurer, Andreas Metzner, S Yen Ho, Peter Wohlmuth, Bruno Reißmann, Christian Heeger, Christine Lemes, Kentaro Hayashi, Ardan M Saguner, Johannes Riedl, Christian Sohns, Shibu Mathew, Karl-Heinz Kuck, Erik Wissner, Feifan Ouyang
BACKGROUND: The mitral isthmus is a critical part of perimitral reentrant tachycardia, as well as an important substrate of persistent atrial fibrillation. Deployment of an endocardial mitral isthmus line (MIL) with the end point of bidirectional block may be challenging and often requires additional epicardial ablation within the coronary sinus. METHODS AND RESULTS: The study population comprised 114 patients with perimitral flutter who underwent de novo ablation of an MIL...
October 2017: Circulation. Arrhythmia and Electrophysiology
https://www.readbyqxmd.com/read/29016835/quality-of-life-is-not-improved-after-mitral-valve-surgery-combined-with-epicardial-left-atrial-cryoablation-as-compared-with-mitral-valve-surgery-alone-a-substudy-of-the-double-blind-randomized-swedish-multicentre-atrial-fibrillation-study-swedmaf
#12
Louise Bagge, Johan Probst, Steen M Jensen, Per Blomström, Stefan Thelin, Anders Holmgren, Carina Blomström-Lundqvist
Aims: Concomitant surgical ablation of atrial fibrillation (AF) in patients undergoing mitral valve surgery (MVS) has almost become routine despite lack of convincing information about improved quality-of-life (QOL) and clinical benefit. Quality-of-life was therefore assessed after MVS with or without epicardial left atrial cryoablation. Methods and results: Sixty-five patients with permanent AF randomized to MVS with or without left atrial cryoablation, in the double-blinded multicentre SWEDMAF trial, replied to the Short Form 36 QOL survey at 6 and 12 months follow-up...
August 19, 2017: Europace: European Pacing, Arrhythmias, and Cardiac Electrophysiology
https://www.readbyqxmd.com/read/29016764/development-of-a-novel-shock-wave-catheter-ablation-system-a-validation-study-in-pigs-in-vivo
#13
Michinori Hirano, Hiroaki Yamamoto, Yuhi Hasebe, Koji Fukuda, Susumu Morosawa, Hirokazu Amamizu, Kazuma Ohyama, Hironori Uzuka, Kazuyoshi Takayama, Hiroaki Shimokawa
Aims: Although the radiofrequency catheter ablation (RFCA) is widely used for the treatment of tachyarrhythmias, it has three fundamental weaknesses as a thermal ablation system, including a limited lesion depth, myoendocardial injury linking to thromboembolism, and prolonged inflammation followed by subsequent recurrences. In order to overcome these limitations, we have been developing a shock wave (SW) catheter ablation (SWCA) system as a novel non-thermal therapy. In the present study, we validated our new SWCA system with increased SW intensity...
August 2, 2017: Europace: European Pacing, Arrhythmias, and Cardiac Electrophysiology
https://www.readbyqxmd.com/read/29016750/electroanatomical-mapping-of-coronary-artery-anatomy-to-guide-epicardial-ventricular-tachycardia-ablation
#14
Gustavo Lima da Silva, Nuno Cortez Dias, Luís Carpinteiro, João de Sousa
No abstract text is available yet for this article.
July 19, 2017: Europace: European Pacing, Arrhythmias, and Cardiac Electrophysiology
https://www.readbyqxmd.com/read/28990947/ablation-of-epicardial-premature-ventricular-contractions-in-a-patient-with-ischemic-cardiomyopathy-and-implementation-of-cardiac-resynchronization-therapy-in-the-same-procedure
#15
Veysel Kutay Vurgun, Başar Candemir, Ali Timuçin Altın, Ömer Akyürek
Premature ventricular contractions (PVCs) can cause clinical deterioration in patients with heart failure and increase the frequency of shocks delivered by an implantable cardioverter defibrillator (ICD). Epicardial PVC/ventricular tachycardia (VT) is seen less often in ischemic cardiomyopathy. Radiofrequency catheter ablation is the most effective treatment option for the management of PVC/VT and can improve cardiac function. Presently described is a patient with ischemic cardiomyopathy and frequent PVCs and VT runs with multiple ICD therapies who was treated with simultaneous radiofrequency catheter ablation in the anterior interventricular vein and cardiac resynchronization therapy defibrillator upgrade in the same procedure...
October 2017: Türk Kardiyoloji Derneği Arşivi: Türk Kardiyoloji Derneğinin Yayın Organıdır
https://www.readbyqxmd.com/read/28988444/usefulness-of-epicardial-impedance-evaluation-for-epicardial-mapping-and-determination-of-epicardial-ablation-site-for-ventricular-tachycardia-a-pilot-study
#16
Takeshi Kitamura, Seiji Fukamizu, Satoshi Miyazawa, Iwanari Kawamura, Rintaro Hojo, Yuya Aoyama, Mitsuhiro Nishizaki, Harumizu Sakurada, Masayasu Hiraoka
BACKGROUND: During epicardial mapping, determination of appropriate ablation sites in low voltage areas (LVA) is challenging because of large epicardial areas covered by adipose tissue. OBJECTIVE: To evaluate the impedance difference between epicardial fat and the epicardial LVA using multiple detector computed tomography (MDCT). METHODS: We enrolled patients who underwent ventricular tachycardia (VT) ablation via the epicardial approach after endocardial ablation failure...
October 8, 2017: Journal of Cardiovascular Electrophysiology
https://www.readbyqxmd.com/read/28979908/epicardial-ablation-of-ventricular-tachycardia-in-a-patient-with-arrhythmogenic-right-ventricular-dysplasia-after-failed-conventional-endocardial-ablation-a-case-for-remote-navigation-with-functional-image-integration
#17
Sabine Ernst, Karine Roy, Eric Lim, Glyn Thomas
Arrhythmogenic right ventricular dysplasia (ARVD) is an inheritable heart muscle disease that predominantly affects the right ventricle (RV) and predisposes to ventricular arrhythmias and sudden cardiac death (SCD)(1). The natural history is predominantly related to ventricular electric instability which may lead to arrhythmic SCD, mostly in young people and athletes(2,3), but may progress with significant RV muscle disease and left-ventricular (LV) involvement and can result in right or biventricular heart failure(4)...
December 30, 2016: Global Cardiology Science & Practice
https://www.readbyqxmd.com/read/28966928/techniques-for-epicardial-mapping-and-ablation-with-a-miniature-robotic-walker
#18
Dwight A Meglan, Wener Lv, Richard J Cohen, Cameron N Riviere
BACKGROUND: Present treatments for ventricular tachycardia have significant drawbacks. To ameliorate these drawbacks, it may be advantageous to employ an epicardial robotic walker that performs mapping and ablation with precise control of needle insertion depth. This paper examines the feasibility of such a system. METHODS: This paper describes techniques for epicardial mapping and depth-controlled ablation with the robotic walker. The mapping technique developed for the current form of the system uses a single equivalent moving dipole model combined with the navigation capability of the walker...
2017: Robot Surg
https://www.readbyqxmd.com/read/28960618/ventricular-tachycardia-ablation-in-arrhythmogenic-right-ventricular-cardiomyopathy-patients-with-tmem43-gene-mutations
#19
Amir Abdelwahab, Martin Gardner, Ratika Parkash, Christopher Gray, John Sapp
INTRODUCTION: Catheter ablation of VT in patients with arrhythmogenic right ventricular cardiomyopathy (ARVC) is often challenging, frequently requiring multiple or epicardial ablation procedures; TMEM43 gene mutations typically cause aggressive disease. We sought to compare VT ablation outcomes for ARVC patients with and without TMEM43 mutations. METHODS: Patients with prior ablation for ARVC-related VT were reviewed. Demographic, procedural and follow-up data were reviewed retrospectively...
September 27, 2017: Journal of Cardiovascular Electrophysiology
https://www.readbyqxmd.com/read/28959111/ablation-of-ventricular-tachycardia-arising-from-the-great-cardiac-vein-a-rare-cause-of-coronary-artery-injury
#20
Allamsetty Suresh, Shih-Lin Chang, Yenn-Jiang Lin, Lei-Wei Lo, Fa-Po Chung, Shih-Ann Chen
We herein report a case of coronary artery injury during epicardial ablation of ventricular tachycardia (VT), and describe an effective method to combat such an injury. A male patient presented with recurrent palpitations which was refractory to medications, with a history of clinically documented VT during the symptomatic episodes. The ablation procedure was performed at the great cardiac vein/anterior interventricular vein (GCV/AIV) junction, in part because pace mapping showed a 12/12 match, and activation map of VT demonstrated the earliest activation site at GCV/AIV junction...
September 2017: Acta Cardiologica Sinica
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