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Journal of Interventional Cardiac Electrophysiology: An International Journal of Arrhythmias and Pacing

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https://www.readbyqxmd.com/read/30019272/mechanistic-implication-of-decreased-plasma-atrial-natriuretic-peptide-level-for-transient-rise-in-the-atrial-capture-threshold-early-after-icd-or-crt-d-implantation
#1
Kojiro Ogawa, Kentaro Yoshida, Yoshiko Uehara, Mari Ebine, Akira Kimata, Hidetaka Nishina, Noriyuki Takeyasu, Yuichi Noguchi, Masaki Ieda, Kazutaka Aonuma, Akihiko Nogami
PURPOSE: Despite the use of steroid-eluting leads, a transient but not persistent rise in the atrial/ventricular capture threshold (TRACT/TRVCT) can occur early after pacemaker implantation in patients with sick sinus syndrome. This study aimed to assess the prevalence, predictors, and mechanisms of TRACT/TRVCT in patients with heart failure undergoing implantable cardioverter defibrillator (ICD) or cardiac resynchronization therapy (CRT) implantation. METHOD: One hundred twenty consecutive patients underwent ICD (N = 70) or CRT (N = 50) implantation...
July 17, 2018: Journal of Interventional Cardiac Electrophysiology: An International Journal of Arrhythmias and Pacing
https://www.readbyqxmd.com/read/30019271/left-bundle-branch-block-induced-left-ventricular-remodeling-and-its-potential-for-reverse-remodeling
#2
Edward Sze, James P Daubert
With the emergence of cardiac resynchronization therapy (CRT) as a powerful tool to reverse left ventricular dysfunction in patients with left bundle branch block (LBBB), there is increasing awareness that LBBB-induced dyssynchrony may be a primary cause of heart failure with reduced ejection fraction (HFrEF). Current guidelines for implanting CRT require at least 3 months of guideline-directed medical therapy (GDMT) before device implantation in the hopes that medications will reverse cardiomyopathy and obviate the need for device therapy...
July 17, 2018: Journal of Interventional Cardiac Electrophysiology: An International Journal of Arrhythmias and Pacing
https://www.readbyqxmd.com/read/30014371/delta-wave-notching-time-is-associated-with-accessory-pathway-localization-in-patients-with-wolff-parkinson-white-syndrome
#3
Yahya Kemal Icen, Yurdaer Donmez, Hasan Koca, Onur Kaypaklı, Mevlut Koc
PURPOSE: Our aim was to investigate the relation between delta wave notching time (DwNt) and accessory pathway location in patients with Wolff-Parkinson-White (WPW) syndrome. METHODS: The retrospective study included 149 WPW patients who underwent ablation therapy. DwNt was defined as the duration between the initial point of QRS and the notching in the delta wave. DwNt was divided by QRS duration to obtain the delta wave index (Dwi). RESULTS: Patients with left-sided accessory pathway (AP) had significantly higher DwNt (p < 0...
July 16, 2018: Journal of Interventional Cardiac Electrophysiology: An International Journal of Arrhythmias and Pacing
https://www.readbyqxmd.com/read/30008046/feasibility-of-directional-percutaneous-epicardial-ablation-with-a-partially-insulated-catheter
#4
Ammar M Killu, Niyada Naksuk, Faisal F Syed, Christopher V DeSimone, Prakriti Gaba, Chance Witt, Dorothy J Ladewig, Scott H Suddendorf, Joanne M Powers, Gaurav Satam, Zdeněk Stárek, Tomas Kara, Jiří Wolf, Pavel Leinveber, Michal Crha, Miroslav Novák, Charles J Bruce, Paul A Friedman, Samuel J Asirvatham
PURPOSE: To demonstrate the feasibility of directional percutaneous epicardial ablation using a partially insulated catheter. METHODS: Partially insulated catheter prototypes were tested in 12 (6 canine, 6 porcine) animal studies in two centers. Prototypes had interspersed windows to enable visualization of epicardial structures with ultrasound. Epicardial unipolar ablation and ablation between two electrodes was performed according to protocol (5-60 W power, 0-60 mls/min irrigation, 78 s mean duration)...
July 14, 2018: Journal of Interventional Cardiac Electrophysiology: An International Journal of Arrhythmias and Pacing
https://www.readbyqxmd.com/read/30003460/the-efficacy-and-safety-of-electroanatomic-mapping-guided-endomyocardial-biopsy-a-systematic-review
#5
Vaibhav R Vaidya, Anas A Abudan, Krithika Vasudevan, Ghanshyam Shantha, Leslie T Cooper, Suraj Kapa, Peter A Noseworthy, Yong-Mei Cha, Samuel J Asirvatham, Abhishek J Deshmukh
PURPOSE: Electroanatomic mapping (EAM) has been utilized as a modality to improve the sensitivity of endomyocardial biopsy (EMB). We sought to systematically review published medical literature on the efficacy and safety of EAM-guided EMB. METHODS: We searched Ovid MEDLINE, Ovid Embase, Ovid CDR, Cochrane Central, Scopus, and Web of Science for studies where EAM was used for EMB. Data abstracted included demographics, indications, final diagnoses, histology findings, and technical details of biopsy extraction...
July 12, 2018: Journal of Interventional Cardiac Electrophysiology: An International Journal of Arrhythmias and Pacing
https://www.readbyqxmd.com/read/29987682/atrial-resynchronization-therapy-in-patients-with-atrial-fibrillation-and-heart-failure-with-and-without-systolic-left-ventricular-dysfunction-a-pilot-study
#6
Sanjeev Saksena, April Slee, Marwan Saad
BACKGROUND: We examined the long-term (≥ 5 years) outcomes of dual-site atrial pacing (DAP) when added to background antiarrhythmic drugs (AADs) and/or ablation in patients with refractory atrial fibrillation (AF) and heart failure (HF). METHODS: Seventy-three patients with HF (mean NYHA HF class of 2.5) and AF refractory to AADs and/or ablation were implanted with DAP systems to achieve biatrial electrical and mechanical resynchronization (ART) and rhythm control (RC)...
July 9, 2018: Journal of Interventional Cardiac Electrophysiology: An International Journal of Arrhythmias and Pacing
https://www.readbyqxmd.com/read/29980961/inappropriate-shock-from-myopotentials-due-to-subcutaneous-defibrillator-s-icd-movement-confirmed-on-fluoroscopy-with-subsequent-device-pocket-revision
#7
David Chieng, Brock Stewart, Vince Paul
No abstract text is available yet for this article.
July 6, 2018: Journal of Interventional Cardiac Electrophysiology: An International Journal of Arrhythmias and Pacing
https://www.readbyqxmd.com/read/29961137/public-reporting-on-cardiac-electrophysiology-procedures-and-outcomes-where-are-we-now-and-where-are-we-headed
#8
Samuel M Kim, Jim W Cheung
Over the years, public reporting of patient outcomes has been promoted as a means to improve healthcare quality. More recently, in response to dramatic rises in healthcare costs, the Medicare Access and CHIP Reauthorization Act (MACRA) of 2015 was implemented in an effort to link quality with reimbursement. As part of a value-based model, public reporting of procedural outcomes has been incorporated into this initiative. Outcomes measures that have been introduced in cardiology include heart failure readmission and post-myocardial infarction medication prescription...
June 30, 2018: Journal of Interventional Cardiac Electrophysiology: An International Journal of Arrhythmias and Pacing
https://www.readbyqxmd.com/read/29959594/entrapment-of-a-circular-mapping-catheter-in-a-pulmonary-vein-during-atrial-fibrillation-ablation
#9
Nico Reinsch, Jochen Buchholz, Ute Ruprecht, Kars Neven
No abstract text is available yet for this article.
June 29, 2018: Journal of Interventional Cardiac Electrophysiology: An International Journal of Arrhythmias and Pacing
https://www.readbyqxmd.com/read/29951865/electrogram-characteristics-of-the-coronary-sinus-in-cases-requiring-epicardial-ablation-within-the-coronary-sinus-for-creating-a-conduction-block-at-the-left-lateral-mitral-isthmus
#10
Daisuke Sato, Hiroki Mani, Yu Makihara, Hiroki Kitajima, Yuji Nishikawa, Seno Keitaro, Yeong-Hwa Chun
BACKGROUND: Left lateral mitral isthmus (LLMI) linear ablation is a safe and effective technique for treating left mitral flutter. LLMI linear ablation with pulmonary vein isolation may reduce the recurrence of persistent atrial fibrillation. However, epicardial ablation within the coronary sinus (CS) is often required to create the LLMI block line. If the necessity for epicardial ablation is checked before ablation, complications may be reduced. METHODS: We recruited 135 patients who underwent their first LLMI ablation and divided them into two groups, one group not requiring epicardial ablation for creating a conduction block at the LLMI (Endo group) and another requiring it (Epi group)...
June 27, 2018: Journal of Interventional Cardiac Electrophysiology: An International Journal of Arrhythmias and Pacing
https://www.readbyqxmd.com/read/29946899/role-of-contact-force-in-ischemic-scar-related-ventricular-tachycardia-ablation-optimal-force-required-and-impact-of-left-ventricular-access-route
#11
Ihab Elsokkari, John L Sapp, Steve Doucette, Ratika Parkash, Christopher J Gray, Martin J Gardner, Ciorsti Macintyre, Amir M AbdelWahab
BACKGROUND: Contact force-sensing technology has become a widely used addition to catheter ablation procedures. Neither the optimal contact force required to achieve adequate lesion formation in the ventricle, nor the impact of left ventricular access route on contact force has been fully clarified. PATIENTS AND METHODS: Consecutive patients (n = 24) with ischemic cardiomyopathy who underwent ablation for scar-related ventricular tachycardia were included in the study...
June 26, 2018: Journal of Interventional Cardiac Electrophysiology: An International Journal of Arrhythmias and Pacing
https://www.readbyqxmd.com/read/29936634/atrioventricular-and-intraventricular-block-after-transcatheter-aortic-valve-implantation
#12
Jane J Lee, Nora Goldschlager, Vaikom S Mahadevan
Aortic stenosis is the most common valvular heart disease in industrialized countries and the most common cause of left ventricular outflow tract (LVOT) obstruction. Transcatheter aortic valve replacement (TAVR) is an alternative to surgical aortic valve replacement for intermediate to high-risk surgical candidates with symptomatic severe aortic stenosis. Conduction system abnormalities, including atrioventricular (AV) and intraventricular (IV) block, are the most common complication of TAVR. In this review, we aim to explore the anatomical issues relevant to atrioventricular block, the relevant clinical and procedural aspects, and the management and long-term implications of AV and IV block...
June 24, 2018: Journal of Interventional Cardiac Electrophysiology: An International Journal of Arrhythmias and Pacing
https://www.readbyqxmd.com/read/29936633/remembering-dr-agustin-castellanos-1927-2017
#13
Robert J Myerburg
No abstract text is available yet for this article.
June 24, 2018: Journal of Interventional Cardiac Electrophysiology: An International Journal of Arrhythmias and Pacing
https://www.readbyqxmd.com/read/29931543/arrhythmia-care-in-africa
#14
Demilade Adedinsewo, Oluwatosin Omole, Oludamilola Oluleye, Itse Ajuyah, Fred Kusumoto
Data on cardiovascular disease, including arrhythmias, in Africa is limited. However, the burden of cardiovascular disease appears to be on the rise. Recent global data suggests an increase in atrial fibrillation rates despite declining rates of rheumatic heart disease. Atrial fibrillation is also associated with increased mortality in Africa. Current management with medical therapy is sub-optimal and ablation procedures, inaccessible. Atrial fibrillation is also an independent risk factor for death in patients with rheumatic heart disease...
June 22, 2018: Journal of Interventional Cardiac Electrophysiology: An International Journal of Arrhythmias and Pacing
https://www.readbyqxmd.com/read/29909541/first-epicardial-mapping-of-the-left-ventricle-using-the-advisor-%C3%A2-hd-grid-catheter
#15
Barbara Bellmann, Jakob Lüker, Daniel Steven, Arian Sultan
No abstract text is available yet for this article.
June 17, 2018: Journal of Interventional Cardiac Electrophysiology: An International Journal of Arrhythmias and Pacing
https://www.readbyqxmd.com/read/29909540/a-contemporary-view-of-atrioventricular-nodal-physiology
#16
Steven M Markowitz, Bruce B Lerman
In delaying transmission of the cardiac impulse from the atria to the ventricles, the atrioventricular (AV) node serves a critical function in augmenting ventricular filling during diastole and limiting the ventricular response during atrial tachyarrhythmias. The complex structure of the nodal region, however, also provides the substrate for reentrant rhythms. Recent discoveries have elucidated the cellular basis and anatomical determinants of slow conduction in the node. Based on analysis of gap junction proteins, distinct structural components of the AV node have been defined, including the compact node, right and left inferior nodal extensions, the lower nodal bundle, and transitional tissue...
June 16, 2018: Journal of Interventional Cardiac Electrophysiology: An International Journal of Arrhythmias and Pacing
https://www.readbyqxmd.com/read/29907894/association-of-cardiac-implantable-electronic-devices-with-survival-in-bifascicular-block-and-prolonged-pr-interval-on-electrocardiogram
#17
Naeem Moulki, Jessica V Kealhofer, David G Benditt, Amy Gravely, Kairav Vakil, Santiago Garcia, Selcuk Adabag
PURPOSE: Bifascicular block and prolonged PR interval on the electrocardiogram (ECG) have been associated with complete heart block and sudden cardiac death. We sought to determine if cardiac implantable electronic devices (CIED) improve survival in these patients. METHODS: We assessed survival in relation to CIED status among 636 consecutive patients with bifascicular block and prolonged PR interval on the ECG. In survival analyses, CIED was considered as a time-varying covariate...
June 16, 2018: Journal of Interventional Cardiac Electrophysiology: An International Journal of Arrhythmias and Pacing
https://www.readbyqxmd.com/read/29948588/novel-use-of-a-3-dimensional-mapping-system-in-cryoablation-of-right-sided-and-septal-accessory-pathways-playback-ablation
#18
Yuki Ishidoya, Akihiko Yotsukura, Fumihiko Sano, George Suzuki, Tadafumi Nanbu, Izumi Yoshida, Masayuki Sakurai
PURPOSE: Despite recent advances in the treatment of eliminating accessory pathways (APs), catheter-induced mechanical block (bump) of APs has been reported to result in a less favorable outcome with high primary failure and recurrence rates. The real bump site cannot always be precisely reapproached under fluoroscopy so physicians can perform ablation to a location different from where the mechanical block was encountered. In this paper, we describe this novel use of a 3-dimensional (3D) mapping system (playback ablation) with a case series...
June 14, 2018: Journal of Interventional Cardiac Electrophysiology: An International Journal of Arrhythmias and Pacing
https://www.readbyqxmd.com/read/29948587/single-3-min-freeze-per-vein-ablation-strategy-with-the-second-generation-cryoballoon-for-atrial-fibrillation-in-a-large-cohort-of-patients-long-term-outcome-after-a-single-procedure
#19
Hugo-Enrique Coutiño, Juan-Pablo Abugattas, Juan Sieira, Francesca Salghetti, Erwin Ströker, Gaetano Paparella, Emmanuel Haine, Varnavas Varnavas, Vincent Umbrain, Muryo Terasawa, Yves De Greef, Pedro Brugada, Saverio Iacopino, Carlo de Asmundis, Gian-Battista Chierchia
PURPOSE: The purpose of the present study was to assess the long-term success rate of a single 3-min freeze per vein ablation strategy in the setting of pulmonary vein isolation (PVI) by means of second-generation cryoballoon (CB-A; Arctic Front Advance, Medtronic, Minneapolis, MN, USA) in a large cohort of patients. METHODS: Three hundred and one patients with drug resistant atrial fibrillation (AF) having undergone PVI by means of CB-A using a single 3-min freeze per vein ablation strategy were included in the analysis...
June 13, 2018: Journal of Interventional Cardiac Electrophysiology: An International Journal of Arrhythmias and Pacing
https://www.readbyqxmd.com/read/29948586/natural-progression-of-qrs-duration-in-icd-only-patients
#20
Wern Yew Ding, Robert Cooper, Derick Todd, Dhiraj Gupta, Mark Hall, Archana Rao, Jay Wright, Richard Snowdon, Johan Waktare, Simon Modi
PURPOSE: The aim of our study is to determine if there is a natural progression of QRSd in ICD-only patients. METHODS AND RESULTS: Retrospective study over a 7-year period of 86 consecutive patients who underwent ICD-only implantation in 2008 at the Liverpool Heart and Chest Hospital, UK. The mean age at ICD implantation was 62.3 (± 11.5) years, range 24-82 years. Mean length of follow-up ECGs available was 5.0 (± 1.6) years, total of 431 patient-years. We observed a progressive prolongation of QRSd over the 7-year study period...
June 13, 2018: Journal of Interventional Cardiac Electrophysiology: An International Journal of Arrhythmias and Pacing
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