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Tachycardia ablation

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https://www.readbyqxmd.com/read/28521014/supraventricular-and-ventricular-tachycardias-risk-factors-drugs-and-ablation
#1
Thomas F Lüscher
No abstract text is available yet for this article.
May 1, 2017: European Heart Journal
https://www.readbyqxmd.com/read/28520908/shortening-of-the-atrial-his-bundle-interval-during-atrial-pacing-as-a-predictor-of-successful-ablation-for-typical-atrioventricular-nodal-re-entrant-tachycardia
#2
Masahiro Nakano, Marehiko Ueda, Yusuke Kondo, Tomohiko Hayashi, Miyo Nakano, Kazuo Miyazawa, Masayuki Ishimura, Yoshio Kobayashi
Aims: Shortening of the atrial-His bundle (AH) interval during the sinus rhythm is occasionally observed after slow pathway ablation for atrioventricular nodal re-entrant tachycardia (AVNRT). In addition, high-rate atrial pacing is useful for avoiding atrioventricular block. We hypothesized that shortening of the AH interval during slow pathway ablation under high-rate atrial pacing would lead to successful ablation of typical AVNRT. Methods and results: This retrospective study included 37 patients in whom successful ablation of typical AVNRT was performed under atrial pacing...
May 17, 2017: Europace: European Pacing, Arrhythmias, and Cardiac Electrophysiology
https://www.readbyqxmd.com/read/28515113/force-sensing-catheters-during-pediatric-radiofrequency-ablation-the-federation-study
#3
Aarti S Dalal, Hoang H Nguyen, Tammy Bowman, George F Van Hare, Jennifer N Avari Silva
BACKGROUND: Based on data from studies of atrial fibrillation ablations, optimal parameters for the TactiCath (TC; St. Jude Medical, Inc) force-sensing ablation catheter are a contact force of 20 g and a force-time integral of 400 g·s for the creation of transmural lesions. We aimed to evaluate TC in pediatric and congenital heart disease patients undergoing ablation. METHODS AND RESULTS: Comprehensive chart and case reviews were performed from June 2015 to March 2016...
May 17, 2017: Journal of the American Heart Association
https://www.readbyqxmd.com/read/28512586/cryoablation-for-ventricular-tachycardia-originating-from-anterior-papillary-muscle-of-left-ventricle-guided-by-intracardiac-echocardiography
#4
Ibrahim Marai, Nizar Andria, Osnat Gurevitz
Papillary muscles (PMs) were reported to be origin of ventricular arrhythmia (VA). Radiofrequency (RF) ablation was reported to be acutely effective in eliminating VA. However, the recurrence rate is high. Recently, cryoablation guided by intracardiac echocardiography, 3-dimensional mapping system, and image integration was introduced as alternative strategy for this challenging ablation. We present a case of ventricular tachycardia originating from anterior PM of left ventricle treated by cryoablation guided only by intracardiac echocardiography...
2017: Case Reports in Cardiology
https://www.readbyqxmd.com/read/28512102/uncommon-presentation-of-adult-form-scimitar-syndrome-associated-with-single-left-pulmonary-vein-in-a-pregnant-woman
#5
Sarah Ali Althomali, Ashraf Ahmad Alhefny, Mohammad Salih Almalki
Scimitar syndrome is the constellation of malformations including an abnormal venous drainage of the right lung into the inferior vena cava, associated with the right lung and systemic supply to the right lung. The anomalous vein looks like the curved, Turkish sword (scimitar), hence the name.The adult form of scimitar syndrome is rare, and it is usually an incidental diagnosis based on the characteristic finding on radiological imaging since the patients are usually asymptomatic or with minimal symptoms.Our patient presented with a rare presentation of scimitar syndrome, which is tachyarrhythmia (sinus tachycardia, with episodes of supraventricular tachycardia)...
May 15, 2017: BMJ Case Reports
https://www.readbyqxmd.com/read/28510647/epicardial-cardioverter-defibrillator-implantation-in-a-4-month-old-infant-bridged-to-heart-transplantation
#6
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/28509894/swallowing-induced-supraventricular-tachyarrhythmia
#7
Umair Khalid, Ali Massumi, Aziz Shaibani
Swallowing-induced supraventricular tachyarrhythmia is an extremely rare entity with unclear pathophysiology. A 55-year-old man presented with a 2-year history of worsening presyncopal symptoms triggered only by drinking liquids of any temperature. Results of a physical examination were unremarkable except for reproducible atrial tachycardias to 180 to 210 beats/minute documented on rhythm strips when the patient was given water to drink. He underwent radiofrequency ablation with complete resolution of symptoms...
2017: Reviews in Cardiovascular Medicine
https://www.readbyqxmd.com/read/28507740/mark-josephson-pioneer-educator-and-mentor-to-a-generation-of-cardiac-electrophysiologists
#8
William G Stevenson
In January 2017 we lost a giant in cardiac electrophysiology, whose work and teachings touched all of us working in the field. Mark Josephson's early work, building on the work of Hein Wellens in using programmed stimulation and catheter mapping to understand scar-related ventricular tachycardias, led the way to surgical and then catheter ablation as a viable therapy for that arrhythmia. His seminal observations are many and catalogued in 'The Josephson School' a wonderful book with 59 Chapters and extensive commentary devoted to his research...
April 2017: Arrhythmia & Electrophysiology Review
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
#9
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...
April 15, 2017: Heart Rhythm: the Official Journal of the Heart Rhythm Society
https://www.readbyqxmd.com/read/28506214/origins-location-of-the-outflow-tract-ventricular-arrhythmias-exhibiting-qrs-pattern-or-qs-pattern-with-a-notch-on-the-descending-limb-in-lead-v1
#10
Cong Lin, Cheng Zheng, De-Pu Zhou, Xiao-Wei Li, Shu-Jie Wu, Jia-Feng Lin
BACKGROUND: Ventricular outflow tract(VOT) ventricular arrhythmias(VAs) presenting qrS pattern or QS pattern with a notch on the descending limb in lead V1 were consistently thought of arising from the commissure between left and right coronary cusp (L-RCC) by previous studies. However, we found they could originate from other anatomic structures in VOT. This study aimed to investigate the exact origin of this kind VAs. METHODS: Forty-nine patients of VOT premature ventricular contrations/ventricular tachycardia(PVCs/VT) with lead V1 presenting qrS pattern or QS pattern with a notch on the descending limb undergoing successful radiofrequency catheter ablation(RFCA) in our center were analyzed...
May 15, 2017: BMC Cardiovascular Disorders
https://www.readbyqxmd.com/read/28500178/electrical-substrate-elimination-in-135-consecutive-patients-with-brugada-syndrome
#11
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/28497840/risk-factors-of-atrial-fibrillation-recurrence-despite-successful-radiofrequency-ablation-of-accessory-pathway-at-11-years-of-follow-up
#12
Michał Orczykowski, Piotr Urbanek, Robert Bodalski, Paweł Derejko, Grzegorz Warmiński, Małgorzata Łodyga, Damian Łasocha, Łukasz Mazurkiewicz, Maciej Dąbrowski, Paweł Tyczyński, Joanna Zakrzewska-Koperska, Rafał Baranowski, Artur Oręziak, Maciej Sterliński, Maria Bilińska, Łukasz Szumowski
BACKGROUND: Previous reports on patients with radiofrequency catheter ablation (RFCA) of accessory pathway (AP) and atrial fibrillation (AF) include only short follow-up periods. The aim of this study was to analyse predictors of recurrence of AF in patients after successful RFCA of APs over long term follow-up periods. METHODS: Of the 1,007 patients who underwent non-pharmacological treatment of Aps ( between the years 1993-2008), data of 100 consecutive patients were retrospectively analyzed (75 men, mean age 43...
May 12, 2017: Cardiology Journal
https://www.readbyqxmd.com/read/28496935/catheter-ablation-of-incisional-atrial-tachycardia
#13
REVIEW
Roman Tatarskiy, Svetlana Garkina, Dmitriy Lebedev
Tachycardias after atrial incisions represent frequent and serious problem. The majority of them are based on a re-entry electrical activation around a combination of anatomic and surgically created obstacles. Considering significant progress of cardiovascular surgery during the last decade along with potential large amount of open-heart procedures in the near future the number of incisional tachycardias has a tendency to increase. The aim of this work was to quantify the magnitude of the problem, characterize the tachycardias after different surgical operations and to analyze possible interventional treatment strategies...
October 2016: Journal of Atrial Fibrillation
https://www.readbyqxmd.com/read/28491794/successful-catheter-ablation-of-recipient-left-ventricular-tachycardia-26-years-after-heterotopic-heart-transplantation
#14
Mikael Laredo, Shaida Varnous, Pauline Balagny, Pascal Leprince, Françoise Hidden-Lucet, Guillaume Duthoit
No abstract text is available yet for this article.
March 2017: HeartRhythm Case Reports
https://www.readbyqxmd.com/read/28491737/catheter-ablation-of-ventricular-tachycardia-in-the-setting-of-electrical-storm-after-revascularization-of-a-chronic-total-occlusion-of-the-right-coronary-artery-an-uncommon-presentation-of-reperfusion-arrhythmia
#15
Sebastian Koenig, Arash Arya, Gerhard Hindricks, Borislav Dinov
No abstract text is available yet for this article.
November 2016: HeartRhythm Case Reports
https://www.readbyqxmd.com/read/28491729/late-presentation-of-constrictive-pericarditis-after-limited-epicardial-ablation-for-inappropriate-sinus-tachycardia
#16
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/28491716/b-cell-lymphoma-of-the-pericardium-presenting-with-ventricular-tachycardia-with-a-successful-catheter-ablation
#17
Takumi Yamada, Franjo Siric, Vishnu V B Reddy, G Neal Kay
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
#18
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/28485510/longstanding-persistent-accelerated-idioatrial-rhythm-benign-sinus-node-like-rhythm-or-insidious-rhythm
#19
Hailei Liu, Chao Zhu, Bing Yang, Weizhu Ju, Hongwu Chen, Fengxiang Zhang, Kai Gu, Mingfang Li, Pipin Kojodjojo, Minglong Chen
INTRODUCTION: Detailed description of longstanding persistent accelerated idioatrial rhythm (AIAR) is lacking. This observational study investigated the clinical manifestations, electrophysiological characteristics, diagnosis, treatment and prognosis of this unusual arrhythmia. METHODS AND RESULTS: Fifteen patients (11 males; average age 25.9±15.7 years) suspected with longstanding persistent AIAR were enrolled in our study. All patients had ECG, 24-hour Holter monitoring, isoproterenol provocation test, echocardiogram, and exercise treadmill test...
May 9, 2017: Journal of Cardiovascular Electrophysiology
https://www.readbyqxmd.com/read/28484842/conventional-mapping-and-ablation-of-focal-ventricular-tachycardias-in-the-healthy-heart
#20
REVIEW
Sonia Busch, Johannes Brachmann, Ahmed Saleh, Mathias Forkmann
Ventricular tachycardias (VT) in the healthy heart, also known as idiopathic VTs, often have a focal origin. Triggered activity due to delayed after-depolarization is the most likely mechanism of focal VTs. Localization of the site of origin of focal VTs is based on activation mapping with or without combination with pace mapping. The characteristic anatomic site of origin of idiopathic VTs is the right and left outflow tract. Other sites include the tricuspid and mitral annulus, the papillary muscles, and Purkinje fibers...
May 8, 2017: Herzschrittmachertherapie & Elektrophysiologie
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