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Epicardial ablation

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https://www.readbyqxmd.com/read/28736712/successful-ablation-for-non-pulmonary-multi-foci-atrial-fibrillation-tachycardia-in-a-patient-with-coronary-sinus-ostial-atresia-by-transseptal-puncture-and-epicardial-approach
#1
Yukihiro Inamura, Junichi Nitta, Akira Sato, Masahiko Goya, Mitsuaki Isobe, Kenzo Hirao
No abstract text is available yet for this article.
May 2017: HeartRhythm Case Reports
https://www.readbyqxmd.com/read/28727191/anterior-pericardial-access-to-facilitate-electrophysiology-study-and-catheter-ablation-of-ventricular-arrhythmias-a-single-tertiary-center-experience
#2
Ali R Keramati, Deeptankar DeMazumder, Satish Misra, Jonathan Chrispin, Fabrizio R Assis, Chava Raghuram, Swati Dey, Hugh Calkins, Harikrishna Tandri
INTRODUCTION: Epicardial ablation is becoming an important part of management in patients with ventricular tachycardia (VT). Posterior epicardial access via the Sosa or Needle-in-Needle (NIN) approach for epicardial VT ablation is considered to be the method of choice for most electrophysiologists. Anterior epicardial access as an alternative technique has recently been proposed, but there is limited data about its safety, efficacy and the rate of immediate complications. In this study, we report our experience with anterior epicardial access between 2009 and 2016...
July 20, 2017: Journal of Cardiovascular Electrophysiology
https://www.readbyqxmd.com/read/28722134/location-variations-and-predictors-of-epicardial-fat-mapping-using-multi-detector-computed-tomography-to-assist-epicardial-ventricular-tachycardia-ablation
#3
Mariaileen Sourwine, Jean Jeudy, Brian Miller, Rama Vunnam, Hasan Imanli, Olurotimi Mesubi, Martine Etienne-Mesubi, Vincent See, Stephen Shorofsky, Timm Dickfeld
BACKGROUND: A significant number of ventricular tachycardia circuits are located close to the epicardial surface and are amendable to epicardial ablation. Epicardial fat often interferes with substrate mapping and ablation, though little is known regarding the distribution of fat and its fluctuation with the cardiac cycle. METHODS: We studied 40 patients who underwent a 64-slice MDCT in order to describe patterns of epicardial fat distribution, variation during cardiac cycle and clinical predictors of epicardial fat...
July 19, 2017: Pacing and Clinical Electrophysiology: PACE
https://www.readbyqxmd.com/read/28707848/frontiers-in-non-invasive-cardiac-mapping-future-implications-for-arrhythmia-treatment
#4
Antonio Frontera, Ghassen Cheniti, Claire A Martin, Masateru Takigawa, Josselin Duchateau, Stephane Puyo, Ruairidh Martin, Nathaniel Thompson, Takeshi Kitamura, Konstantinos Vlachos, Michael Wolf, Nora Al-Jefairi, Gregoire Massouille, Thomas Pambrun, Arnaud Denis, Frederic Sacher, Nicolas Derval, Remis Dubois, Pierre Jaïs, Meleze Hocini, Michel Haissaguerre
Electrocardiographic mapping (ECM) is a non invasive technique using body surface potentials and CT geometry to reconstruct epicardial maps. ECM is emerging as an important tool not only for diagnostic mapping, but also as a guide for trans-catheter ablation of complex arrhythmias such as atrial fibrillation. It provides the clinician with an immediate global view of the substrate, allowing easier pre-procedural planning, potential improving clinical outcomes. Panoramic mapping of ventricular fibrillation (VF) is helping to develop a better understanding of its physiology, with future implications for the identification of therapeutic targets in patients with structural heart disease, as well as in idiopathic VF...
July 12, 2017: Minerva Cardioangiologica
https://www.readbyqxmd.com/read/28687623/nonmuscle-myosin-ii-b-regulates-epicardial-integrity-and-epicardial-derived-mesenchymal-cell-maturation
#5
Xuefei Ma, Derek C Sung, Yanqin Yang, Yoshi Wakabayashi, Robert S Adelstein
Nonmuscle myosin II-B (NMII-B) is essential for cardiac myocyte cytokinesis. The role of NMII-B in other cardiac cells is not known. Here we show that NMII-B is required in epicardial formation and function to support myocardial proliferation and coronary vessel development. Ablation of NMII-B in epicardial cells results in disruption of epicardial integrity with a loss of E-cadherin at cell-cell junctions and a focal detachment of epicardial cells from the myocardium. NMII-B ablated or blebbistatin inhibited epicardial explants demonstrate impaired mesenchymal cell maturation during epicardial epithelial-mesenchymal transition...
July 7, 2017: Journal of Cell Science
https://www.readbyqxmd.com/read/28648668/catheter-ablation-in-patients-with-pleomorphic-idiopathic-premature-ventricular-complexes
#6
Seth H Sheldon, Rakesh Latchamsetty, Fred Morady, Frank Bogun
BACKGROUND: Premature ventricular complexes (PVCs) often originate from multiple locations. OBJECTIVE: The goals of this study were to assess characteristics of patients with pleomorphic, idiopathic PVCs and to determine the impact of pleomorphic PVCs on outcomes. METHODS: Records were collected from 153 consecutive patients referred for ablation of PVCs. Patients with structural heart disease (n = 34) or inadequate ambulatory electrocardiographic data (n = 19) were excluded...
June 22, 2017: Heart Rhythm: the Official Journal of the Heart Rhythm Society
https://www.readbyqxmd.com/read/28644155/transvenous-before-surgical-hybrid-procedure
#7
Joseph J Tiano, Robert Drennan, John Novella, Rafael Squiteri, Malcolm Robinson, Albert DiMeo, Lindsey Scierka, Paul LeLorier
BACKGROUND: Historically, persistent atrial fibrillation (PeAF) and long standing persistent atrial fibrillation (LSPeAF) have demonstrated limited clinical success despite hybrid approaches. OBJECTIVE: We describe our experience with the endocardial-before-epicardial approach defined by a comprehensive endovascular approach preceding and guiding the epicardial approach which includes an extensive posterior wall ablation. METHODS: 40 patients were followed over a 12 month period...
May 2017: Journal of the Louisiana State Medical Society: Official Organ of the Louisiana State Medical Society
https://www.readbyqxmd.com/read/28639873/anesthetic-management-of-patients-undergoing-percutaneous-endocardial-and-epicardial-left-atrial-appendage-occlusion
#8
Zeena Husain, Payam Safavi-Naeini, Abdi Rasekh, Mehdi Razavi, Charles D Collard, James M Anton, Daniel A Tolpin
Atrial fibrillation is the most common cardiac arrhythmia in adults affecting almost 6 million adults in the United States. The 2 most common comorbidities associated with atrial fibrillation are heart failure and thromboembolic events. Heart failure symptoms may be treated with rate control, antiarrhythmic medications or by catheter ablation. Unfortunately, despite optimal medical management, thromboembolic events still occur. Recently, there has been a great deal of interest and innovation in finding an alternative to chronic anticoagulation...
June 1, 2017: Seminars in Cardiothoracic and Vascular Anesthesia
https://www.readbyqxmd.com/read/28638008/-the-results-of-pulmonary-veins-isolation-to-prevent-postoperative-atrial-fibrillation
#9
P V Lednev, Yu V Belov, R N Komarov, A V Stonogin, A I Katkov
AIM: To compare an efficacy of primary surgical (epicardial bipolar pulmonary veins isolation) and pharmacological (amiodarone) prevention of postoperative atrial fibrillation. MATERIAL AND METHODS: The study included 117 patients with coronary artery disease without previous paroxysms of atrial fibrillation who were randomized into 3 groups. The first (I) group (n=39) included patients who underwent coronary artery bypass grafting without radiofrequency ablation of pulmonary veins and prophylactic amiodarone administration...
2017: Khirurgiia
https://www.readbyqxmd.com/read/28603002/association-of-preprocedural-cardiac-magnetic-resonance-imaging-with-outcomes-of-ventricular-tachycardia-ablation-in-patients-with-idiopathic-dilated-cardiomyopathy
#10
Konstantinos C Siontis, Hyungjin Myra Kim, Ghaith Sharaf Dabbagh, Rakesh Latchamsetty, Jadranka Stojanovska, Krit Jongnarangsin, Fred Morady, Frank M Bogun
BACKGROUND: Knowledge of complex arrhythmogenic substrates can help plan ventricular tachycardia (VT) ablation in patients with idiopathic dilated cardiomyopathy (DCM). OBJECTIVE: The purpose of this study was to assess whether preprocedural late gadolinium enhancement magnetic resonance imaging (LGE-MRI) can improve ablation outcomes in DCM. METHODS: Consecutive patients (N = 96) with idiopathic DCM underwent VT ablation with open-irrigated catheters (2006-2016)...
June 9, 2017: Heart Rhythm: the Official Journal of the Heart Rhythm Society
https://www.readbyqxmd.com/read/28597213/-3-d-mapping-of-ventricular-tachycardia-in-patients-with-dilative-cardiomyopathy
#11
REVIEW
Daniel Steven, Jan-Hendrik van den Bruck, Jakob Lüker, Tobias Plenge, Arian Sultan
Catheter ablation of ventricular tachycardia (VT) is gaining in importance. The current guidelines suggest considering catheter ablation for VT even in patients with a single sustained and documented episode. This is also underlined by recent data indicating that absence of VT predicts lower mortality and longer transplant-free survival. The majority of patients with VTs have a history of prior myocardial infarction; in a smaller proportion, patients present with dilated cardiomyopathy. The latter has a less structured scar pattern which makes it more complicated to apply efficient ablation strategies...
June 8, 2017: Herzschrittmachertherapie & Elektrophysiologie
https://www.readbyqxmd.com/read/28554515/catheter-ablation-of-epicardial-ventricular-tachycardia-from-the-coronary-venous-system-is-endocardial-mapping-always-required
#12
Stéphane Boulé, Gauthier Garret, Zouheir Souissi, Didier Klug
Endocardial mapping is typically considered as the first step of VT ablation procedures. Nevertheless, when the electrocardiogram is highly suggestive of an epicardial VT, a minimally invasive procedure performed exclusively via the coronary sinus might be considered. This straightforward approach avoids all potential complications associated with access to the left ventricular endocardium, the aortic root, and the pericardial space.
May 18, 2017: Journal of Electrocardiology
https://www.readbyqxmd.com/read/28510647/epicardial-cardioverter-defibrillator-implantation-in-a-4-month-old-infant-bridged-to-heart-transplantation
#13
Cristina Carro, Alberto Francesco Cereda, Giuseppe Annoni, Stefano Maria Marianeschi
Implantable cardioverter-defibrillator (ICD) is the gold standard therapy for the prevention of sudden cardiac death. Nevertheless, ICD placement in the paediatric population is still limited because of several technical difficulties. Several implantation techniques have been proposed but experience in infants with very low weight and less than 6 months is very limited. We herein describe a case of a minimally invasive ICD epicardial implantation in a 4-month-old infant weighing 5 kg. A diagnosis of arrhythmic cardiomyopathy with left ventricular non-compaction disease with ventricular tachycardia storms, QT prolongation and Wolff-Parkinson-White pattern was made...
May 16, 2017: Interactive Cardiovascular and Thoracic Surgery
https://www.readbyqxmd.com/read/28506710/outcomes-after-repeat-ablation-of-ventricular-tachycardia-in-structural-heart-disease-an-analysis-from-the-international-vt-ablation-center-collaborative-group
#14
Wendy S Tzou, Roderick Tung, David S Frankel, Luigi Di Biase, Pasquale Santangeli, Marmar Vaseghi, T Jared Bunch, J Peter Weiss, Venkatakrishna N Tholakanahalli, Dhanunjaya Lakkireddy, Rama Vunnam, Timm Dickfeld, Nilesh Mathuria, Usha Tedrow, Pasquale Vergara, Kairav Vakil, Shiro Nakahara, J David Burkhardt, William G Stevenson, David J Callans, Paolo Della Bella, Andrea Natale, Kalyanam Shivkumar, Francis E Marchlinski, William H Sauer
BACKGROUND: Data evaluating repeat radiofrequency ablation (>1RFA) of ventricular tachycardia (VT) are limited. OBJECTIVE: The purpose of this study was to determine the safety and outcomes of VT >1RFA in patients with structural heart disease. METHODS: Patients with structural heart disease undergoing VT RFA at 12 centers with data on prior RFA history were included. Characteristics and outcomes were compared between first-time (1RFA) and >1RFA patients...
July 2017: Heart Rhythm: the Official Journal of the Heart Rhythm Society
https://www.readbyqxmd.com/read/28500178/electrical-substrate-elimination-in-135-consecutive-patients-with-brugada-syndrome
#15
Carlo Pappone, Josep Brugada, Gabriele Vicedomini, Giuseppe Ciconte, Francesco Manguso, Massimo Saviano, Raffaele Vitale, Amarild Cuko, Luigi Giannelli, Zarko Calovic, Manuel Conti, Paolo Pozzi, Andrea Natalizia, Simonetta Crisà, Valeria Borrelli, Ramon Brugada, Georgia Sarquella-Brugada, Marco Guazzi, Alessandro Frigiola, Lorenzo Menicanti, Vincenzo Santinelli
BACKGROUND: There is emerging evidence that localization and elimination of abnormal electric activity in the epicardial right ventricular outflow tract may be beneficial in patients with Brugada syndrome. METHODS AND RESULTS: A total of 135 symptomatic Brugada syndrome patients having implantable cardiac defibrillator were enrolled: 63 (group 1) having documented ventricular tachycardia (VT)/ventricular fibrillation (VF) and Brugada syndrome-related symptoms, and 72 (group 2) having inducible VT/VF without ECG documentation at the time of symptoms...
May 2017: Circulation. Arrhythmia and Electrophysiology
https://www.readbyqxmd.com/read/28500177/efficacy-of-an-anatomical-approach-in-radiofrequency-catheter-ablation-of-idiopathic-ventricular-arrhythmias-originating-from-the-left-ventricular-outflow-tract
#16
Takumi Yamada, Naoki Yoshida, Harish Doppalapudi, Silvio H Litovsky, H Thomas McElderry, G Neal Kay
BACKGROUND: When anatomic obstacles preclude radiofrequency catheter ablation of idiopathic ventricular arrhythmias (VAs) originating from the left ventricular outflow tract (LVOT), an alternative approach from the anatomically opposite side (endocardial versus epicardial or above versus below the aortic valve) may be considered (anatomic ablation). The purpose of this study was to investigate the efficacy of an anatomic ablation in idiopathic LVOT VAs. METHODS AND RESULTS: We studied 229 consecutive patients with idiopathic LVOT VAs...
May 2017: Circulation. Arrhythmia and Electrophysiology
https://www.readbyqxmd.com/read/28497622/non-contrast-enhanced-t1-weighted-mri-of-myocardial-radiofrequency-ablation-lesions
#17
Michael A Guttman, Susumu Tao, Sarah Fink, Aravindan Kolandaivelu, Henry R Halperin, Daniel A Herzka
PURPOSE: To demonstrate imaging of radiofrequency ablation lesions with non-contrast-enhanced T1 -weighted (T1w) MRI. METHODS: Fifteen swine underwent left ventricular ablation followed by MRI using different preparations: endocardial or epicardial ablation of naïve animal, or endocardial ablation of animal with myocardial infarction. Lesion imaging was performed using free-breathing, non-contrast-enhanced, T1w sequence with long inversion time (TI). Also acquired were T1 maps and delayed contrast-enhanced (DCE) imaging...
May 11, 2017: Magnetic Resonance in Medicine: Official Journal of the Society of Magnetic Resonance in Medicine
https://www.readbyqxmd.com/read/28491729/late-presentation-of-constrictive-pericarditis-after-limited-epicardial-ablation-for-inappropriate-sinus-tachycardia
#18
Adam Oesterle, Amita Singh, Husam Balkhy, Aliya N Husain, Deborah Moyer, Roderick Tung, Hemal M Nayak
No abstract text is available yet for this article.
September 2016: HeartRhythm Case Reports
https://www.readbyqxmd.com/read/28488109/-epicardial-ablation-of-ventricular-tachycardias
#19
REVIEW
E Ene, P Halbfaß, K Nentwich, K Sonne, M Roos, S Fodor, L Lehmkuhl, F Gietzen, S Barth, K Hamm, T Deneke
Ventricular tachycardias (VT) in patients with structural heart diseases have predominantly a scar-associated reentry mechanism so that substrate-based ablation approaches also have to be used in nearly all procedures. In many VT cases-especially in nonischemic cardiomyopathy (NICM) and arrhythmogenic right ventricular cardiomyopathy-a critical epicardial substrate can be identified as an essential component of the reentry circuit so that for the ablation-based modification of the substrate in these cases an epicardial approach is necessary...
May 9, 2017: Herzschrittmachertherapie & Elektrophysiologie
https://www.readbyqxmd.com/read/28479513/epicardial-endocardial-breakthrough-during-stable-atrial-macroreentry-evidence-from-ultra-high-resolution-3-dimensional-mapping
#20
Bhupesh Pathik, Geoffrey Lee, Frédéric Sacher, Michel Haïssaguerre, Pierre Jaïs, Grégoire Massoullié, Nicolas Derval, Prashanthan Sanders, Peter Kistler, Jonathan M Kalman
BACKGROUND: Evidence for epicardial-endocardial breakthrough (EEB) is derived from mapping inferences in patients with atrial fibrillation who may also have focal activations. OBJECTIVE: The purpose of this study was to investigate whether EEB could be discerned during stable right atrial (RA) macroreentry using high-density high-spatial resolution 3-dimensional mapping. METHODS: Macroreentry was diagnosed using 3-dimensional mapping and entrainment...
May 4, 2017: Heart Rhythm: the Official Journal of the Heart Rhythm Society
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