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Tachycardia ablation

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https://www.readbyqxmd.com/read/29222860/adenosine-sensitive-wolff-parkinson-white-longer-time-across-the-atrioventricular-groove
#1
Cheyenne Beach, Christopher W Follansbee, Lee Beerman, Sharon Mazzocco, Li Wang, Gaurav Arora
BACKGROUND: Successful ablation sites in Wolff-Parkinson-White syndrome (WPW) are characterized by short atrioventricular (AV) intervals. Approximately 15% of patients with WPW have adenosine-sensitive accessory pathways (APs). We sought to determine if local AV intervals of adenosine-sensitive APs are different from those of adenosine-insensitive APs in patients with WPW. METHODS: Patients ≤ 21 years with WPW and adenosine-sensitive APs who underwent successful ablation over a 9-year period were included...
December 9, 2017: Pacing and Clinical Electrophysiology: PACE
https://www.readbyqxmd.com/read/29221283/effectiveness-and-safety-of-simultaneous-hybrid-thoracoscopic-endocardial-catheter-ablation-of-atrial-fibrillation-in-obese-and-non-obese-patients
#2
Kevin Phan, Laurent Pison, Nelson Wang, Aran Kanagaratnam, Tristan D Yan, Bart Maesen, Jos G Maessen, Harry J Crijns, Mark La Meir
Background: We evaluated the safety and effectiveness of the hybrid thoracoscopic endocardial epicardial ablation technique for the treatment of atrial fibrillation (AF) in obese versus non-obese patients. Methods: Between January 2010 and January 2015, a cohort of 61 patients were retrospectively identified to undergo ablation of AF as a stand-alone procedure using a thoracoscopic, hybrid epicardial-endocardial technique. All patients underwent continuous 7-day Holter monitoring at 3, 6 months, 1 year and yearly thereafter...
September 2017: Journal of Thoracic Disease
https://www.readbyqxmd.com/read/29217463/electrical-storm-in-the-early-phase-of-heartmate%C3%A2-ii-device-implantation-incidence-risk-factors-and-prognosis
#3
Jerome Corre, François Picard, Rodrigue Garcia, Adlane Zemmoura, Nicolas Derval, Arnaud Denis, Antoine Romen, Karine Nubret, Pierre Jais, Michel Haissaguerre, Pierre Dos Santos, Laurent Barandon, Frederic Sacher
BACKGROUND: Ventricular arrhythmia is common after left ventricular assist device (LVAD) implantation, especially in the early postoperative phase (<30 days). AIM: To identify the incidence of and risk factors for electrical storm (ES) occurring within 30 days of HeartMate® II implantation. METHODS: We reviewed data from all consecutive patients undergoing HeartMate® II device implantation at our institution from January 2008 to December 2014...
December 4, 2017: Archives of Cardiovascular Diseases
https://www.readbyqxmd.com/read/29216988/catheter-ablation-of-ventricular-tachycardia-in-structural-heart-disease-indications-strategies-and-outcomes-part-ii
#4
REVIEW
Srinivas R Dukkipati, Jacob S Koruth, Subbarao Choudry, Marc A Miller, William Whang, Vivek Y Reddy
In contrast to ventricular tachycardia (VT) that occurs in the setting of a structurally normal heart, VT that occurs in patients with structural heart disease carries an elevated risk for sudden cardiac death (SCD), and implantable cardioverter-defibrillators (ICDs) are the mainstay of therapy. In these individuals, catheter ablation may be used as adjunctive therapy to treat or prevent repetitive ICD therapies when antiarrhythmic drugs are ineffective or not desired. However, certain patients with frequent premature ventricular contractions (PVCs) or VT and tachycardiomyopathy should be considered for ablation before ICD implantation because left ventricular function may improve, consequently decreasing the risk of SCD and obviating the need for an ICD...
December 12, 2017: Journal of the American College of Cardiology
https://www.readbyqxmd.com/read/29216987/catheter-ablation-of-ventricular-tachycardia-in-structurally-normal-hearts-indications-strategies-and-outcomes-part-i
#5
REVIEW
Srinivas R Dukkipati, Subbarao Choudry, Jacob S Koruth, Marc A Miller, William Whang, Vivek Y Reddy
Catheter ablation of ventricular tachycardia (VT) is being increasingly performed; yet, there is often confusion regarding indications, outcomes, and how to identify those patient populations most likely to benefit. The management strategy differs between those with structural heart disease and those without. For the former, an implantable cardioverter-defibrillator (ICD) is typically required due to an elevated risk for sudden cardiac death, and catheter ablation can be used as adjunctive therapy to treat or prevent repetitive ICD therapies...
December 12, 2017: Journal of the American College of Cardiology
https://www.readbyqxmd.com/read/29205672/repetitive-incessant-electrical-storm-triggered-by-early-repolarization
#6
Sofia Chatzidou, Evangelos Repasos, Sotiris Plastiras, Christos Kontogiannis, Marinos Kosmopoulos, Diamantis I Tsilimigras, Ioannis Paraskevaidis, Stelios Rokas
Early repolarization syndrome (ERS) was originally considered a normal variant with benign outcome. However, recent studies have demonstrated that it can be linked to a considerable risk of life-threatening arrhythmias and sudden cardiac death. We report a case with an extraordinary, extremely malignant clinical expression of ERS refractory to all antiarrhythmic drugs including quinidine. This case demonstrates real-time changes of dynamic electrocardiogram (ECG) preceding a polymorphic ventricular tachycardia (VT)-ventricular fibrillation (VF) and possible external factors triggering arrhythmia onset...
December 5, 2017: Annals of Noninvasive Electrocardiology
https://www.readbyqxmd.com/read/29194653/electrophysiological-markers-predicting-impeding-av-block-during-ablation-of-atrioventricular-nodal-re-entry-tachycardia
#7
Nikolaos Fragakis, Lydia Krexi, Panagiota Kyriakou, Melani Sotiriadou, Charalambos Lazaridis, Athanasios Karamanolis, Panagiotis Dalampyras, Stelios Tsakiroglou, Vassilios Skeberis, Dimitrios Tsalikakis, Vassilios Vassilikos
BACKGROUND: Radiofrequency (RF) ablation of the slow pathway (SP) in atrioventricular nodal reentry tachycardia (AVNRT) is occasionally complicated with atrioventricular block (AVB) often predicted by junctional beats (JB) with loss of ventriculo-atrial (VA) conduction. METHODS: We analysed retrospectively 153 patients undergoing ablation of SP for typical AVNRT. Patients were divided into two age groups: 127 ≤70 years and 26 > 70 years. We analysed the interval between the atrial electrogram in the His-bundle position and the distal ablation catheter [A(H)-A(RFd)] and the proximal coronary sinus catheter [A(RFd)-A(CS)] before RF applications with and without JB...
November 30, 2017: Pacing and Clinical Electrophysiology: PACE
https://www.readbyqxmd.com/read/29188428/surgical-treatment-for-endocardial-radiofrequency-ablation-resistant-sustained-monomorphic-ventricular-tachycardia-with-mural-thrombus-including-dense-calcification-in-the-left-ventricle
#8
Takuya Higuchi, Yasushi Tsutsumi, Osamu Monta, Satoshi Asada, Ryota Matsumoto, Shouhei Yamada, Hirokazu Ohashi
Catheter ablation provides effective results for sustained monomorphic ventricular tachycardia (VT), but the presence of mural thrombus including dense calcification occasionally causes unfavorable outcomes. The case of a 67-year-old man in whom sustained monomorphic VT, which was resistant to endocardial radiofrequency ablation, in the presence of mural thrombus including dense calcification after coronary artery bypass grafting was successfully treated by left ventricular reconstruction with cryoablation is reported...
November 29, 2017: General Thoracic and Cardiovascular Surgery
https://www.readbyqxmd.com/read/29186419/management-of-ventricular-tachycardia-in-the-ablation-era-results-of-the-european-heart-rhythm-association-survey
#9
Roland Richard Tilz, Radoslaw Lenarczyk, Daniel Scherr, Kristina Herman Haugaa, Konstantinos Iliodromitis, Helmut Pürerfellner, Marek Kiliszek, Nikolaos Dagres
Patients with sustained ventricular tachycardia (VT) are at risk of sudden death. Treatment options for VT include antiarrhythmic drug therapy, insertion of an implantable cardioverter-defibrillator, and catheter ablation. Evidence on indications for VT ablation, timing, ablation strategies, and periprocedural management is sparse. The aim of this European Heart Rhythm Association (EHRA) survey was to evaluate clinical practice regarding management of VT among the European countries. An electronic questionnaire was sent to members of the EHRA Electrophysiology Research Network...
November 23, 2017: Europace: European Pacing, Arrhythmias, and Cardiac Electrophysiology
https://www.readbyqxmd.com/read/29183028/radiofrequency-ablation-of-atrial-fibrillation-in-patients-with-ebstein-s-anomaly-a-two-case-report
#10
Konstantinos E Iliodromitis, Marc Bonsels, Rolf Borchard, Anja Dorszewski
Ebstein's anomaly (EA) is a rare congenital heart disease characterized by "atrialization" of the right ventricle, due to apical displacement of the tricuspid leaflets into the right ventricle. Patients with EA may develop all kinds of supraventricular arrhythmias requiring radiofrequency ablation. Atrial fibrillation (Afib) is a common arrhythmia in EA patients, and results in debilitating symptoms that often require surgical treatment. This is a follow-up report of 2 patients with EA undergoing radiofrequency ablation for Afib...
November 29, 2017: Cardiology
https://www.readbyqxmd.com/read/29173673/ventricular-arrhythmias
#11
REVIEW
William F Dresen, John D Ferguson
Ventricular tachycardia (VT) is the most common form of wide complex tachycardia and is associated with a high mortality rate. Electrocardiographic analysis remains paramount in diagnosis and helps to direct therapy. Antiarrhythmic agents, although effective in reducing arrhythmia burden, have never demonstrated a mortality benefit. The implantable cardioverter-defibrillator aids not only in the acute termination of ventricular arrhythmia, but provides a wealth of information for the long-term management of patients with VT...
February 2018: Cardiology Clinics
https://www.readbyqxmd.com/read/29173413/sudden-cardiac-death-in-acute-coronary-syndromes
#12
REVIEW
Nikolaos Dagres, Gerhard Hindricks
Sudden cardiac death in acute coronary syndromes mostly results from complex ventricular arrhythmias. Although the incidence has fallen with contemporary management, they still pose a threat for many patients. Treatment consists of immediate termination by electrical cardioversion and prompt coronary revascularization for relief of ischemia. Beta-blockers administered prophylactically have a protective effect. For recurrent episodes, pharmacologic treatment consists of beta-blockers and amiodarone, or, in nonresponsive patients, lidocaine...
December 2017: Cardiac Electrophysiology Clinics
https://www.readbyqxmd.com/read/29167624/unique-ventricular-tachycardia-originating-from-the-right-bundle-branch
#13
Hongliang Yang, Daoyuan Si, Yaliang Tong, Zhe An, Ping Yang, Yuquan He
Ventricular tachycardia (VT), a common arrhythmia, frequently originates from in the right ventricular outflow tract, left ventricular outflow tract, aortic sinus, and left ventricular papillary muscle but infrequently from the His-Purkinje system, whereas the VT stemming from the right bundle branch has rarely been reported. Here we reported a case with of VT originating from the right bundle branch which was subsequently successfully treated with radiofrequency ablation and demonstrated the electrocardiac features of VT using an electrophysiological examination...
November 2017: Acta Cardiologica Sinica
https://www.readbyqxmd.com/read/29166719/-clinical-characteristics-and-outcome-comparison-between-atrial-fibrillation-patients-underwent-catheter-ablation-under-general-aesthesia-or-local-anesthesia-and-sedation
#14
J J Xu, L J Gao, D Chang, X J Xiao, R F Zhang, J Lin, Z M Zhao, H Zhang, Y L Xia, X M Yin, Y Z Yang
Objective: To compare the outcome of radiofrequency catheter ablation under local anesthesia/sedation (S) or general anesthesia(GA) in atrial fibrillation patients. Methods: Data of 498 patients with atrial fibrillation undergoing radiofrequency catheter ablation in our departmentfrom January 2014 to December 2015 were retrospectively analyzed. Two hundred and twenty patients assigned to the GA group, the other 278 patients to the S group. Patients were followed clinically every 3 months within one year after procedure...
November 24, 2017: Zhonghua Xin Xue Guan Bing za Zhi
https://www.readbyqxmd.com/read/29161372/plaaf-score-as-a-novel-predictor-of-long-term-outcome-after-second-generation-cryoballoon-pulmonary-vein-isolation
#15
Ersan Akkaya, Alexander Berkowitsch, Harald Greiss, Christian W Hamm, Johannes Sperzel, Thomas Neumann, Malte Kuniss
Aims: Predictors of atrial arrhythmia recurrence have not been described in a long-term follow-up study of patients undergoing pulmonary vein isolation (PVI) using the cryoballoon technique. We aimed to evaluate the efficacy of a second-generation cryoballoon and identify pre-procedural predictors of 3-year outcome after PVI. Methods and results: For this observational cohort study, we enrolled 440 patients ablated at our institution with a second-generation cryoballoon...
November 16, 2017: Europace: European Pacing, Arrhythmias, and Cardiac Electrophysiology
https://www.readbyqxmd.com/read/29151496/cost-effectiveness-analysis-of-cardiovascular-disease-treatment-in-japan
#16
Satoshi Kodera, Arihiro Kiyosue, Jiro Ando, Hiroshi Akazawa, Hiroyuki Morita, Masafumi Watanabe, Issei Komuro
The quality-adjusted life year (QALY) and incremental cost-effectiveness ratio (ICER) are important concepts in cost-effectiveness analysis, which is becoming increasingly important in Japan. QALY is used to estimate quality of life (QOL) and life years, and can be used to compare the efficacies of cancer and cardiovascular treatments. ICER is defined as the difference in cost between treatments divided by the difference in their effects, with a smaller ICER indicating better cost-effectiveness. Here, we present a review of cost-effectiveness analyses in Japan as well other countries...
November 17, 2017: International Heart Journal
https://www.readbyqxmd.com/read/29145517/which-patients-recur-as-atrial-tachycardia-rather-than-atrial-fibrillation-after-catheter-ablation-of-atrial-fibrillation
#17
Pil-Sung Yang, Young-Ah Park, Tae-Hoon Kim, Jae-Sun Uhm, Boyoung Joung, Moon-Hyoung Lee, Hui-Nam Pak
INTRODUCTION: The ablation gaps have been known as the main mechanism of recurrence as atrial tachycardia (AT) rather than atrial fibrillation (AF) after AF catheter ablation. However, AF organization due to reduction of critical mass or focal trigger may also be the mechanism of AT recurrence. We sought to find out the main clinical factors of recurrence as AT rather than AF after AF ablation in the absence of antiarrhythmic drug effect. METHODS: We analyzed 521 patients (70...
2017: PloS One
https://www.readbyqxmd.com/read/29138585/a-comparative-analysis-of-clinical-outcomes-and-disposable-costs-of-different-catheter-ablation-methods-for-the-treatment-of-atrioventricular-nodal-reentrant-tachycardia
#18
Adam E Berman, Harold Rivner, Robin Chalkley, Vahé Heboyan
Background: Catheter ablation of atrioventricular nodal reentrant tachycardia (AVNRT) is a commonly performed electrophysiology (EP) procedure. Few data exist comparing conventional (CONV) versus novel ablation strategies from both clinical and direct cost perspectives. We sought to investigate the disposable costs and clinical outcomes associated with three different ablation methodologies used in the ablation of AVNRT. Methods: We performed a retrospective review of AVNRT ablations performed at Augusta University Medical Center from 2006 to 2014...
2017: ClinicoEconomics and Outcomes Research: CEOR
https://www.readbyqxmd.com/read/29138142/catheter-ablation-of-idiopathic-left-posterior-fascicular-ventricular-tachycardia-predicting-the-site-of-origin-via-mapping-and-electrocardiography
#19
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/29134433/practice-makes-perfect-relationship-between-hospital-procedure-volume-and-permanent-pacemaker-implantation-after-paroxysmal-supraventricular-tachycardia-ablation
#20
Vratika Agarwal, Neeraj Shah, Kathan Mehta, Anand Agarwal, Jonathan Willner, James Lafferty
PURPOSE: Paroxysmal supraventricular tachycardia (PSVT) ablation can result in injury to the atrioventricular (AV) node causing complete heart block requiring permanent pacemaker (PPM) implantation. Few studies have examined the impact of hospital PSVT ablation volume and PPM implantation rates post ablation. METHODS: We included adult patients from the Nationwide Inpatient Sample (NIS) database, from 1998 to 2011, using ICD-9 diagnoses codes 427.0 and 427.89 for PSVT and ICD-9 procedure code 37...
November 2017: Journal of Interventional Cardiac Electrophysiology: An International Journal of Arrhythmias and Pacing
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