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Atrial fibrillation pace

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https://www.readbyqxmd.com/read/29224646/association-of-insurance-type-with-receipt-of-oral-anticoagulation-in-insured-patients-with-atrial-fibrillation-a-report-from-the-american-college-of-cardiology-ncdr-pinnacle-registry
#1
Celina M Yong, Yuyin Liu, Patricia Apruzzese, Gheorghe Doros, Christopher P Cannon, Thomas M Maddox, Anil Gehi, Jonathan C Hsu, Steven A Lubitz, Salim Virani, Mintu P Turakhia
BACKGROUND: It is poorly understood whether insurance type may be a major contributor to the underuse of oral anticoagulation (OAC) among patients with atrial fibrillation (AF), particularly for novel oral anticoagulants (NOACs). METHODS: We performed a retrospective cohort registry study of patients with insurance, AF, CHA2DS2-VASc ≥2, and at least one outpatient encounter recorded in the ACC NCDR's PINNACLE Registry between January 1, 2011 and December 31, 2014...
January 2018: American Heart Journal
https://www.readbyqxmd.com/read/29221440/effect-of-flecainide-on-atrial-fibrillatory-rate-in-a-large-animal-model-with-induced-atrial-fibrillation
#2
Eva Z Hesselkilde, Helena Carstensen, Maria M Haugaard, Jonas Carlson, Steen Pehrson, Thomas Jespersen, Rikke Buhl, Pyotr G Platonov
BACKGROUND: Atrial fibrillatory cycle length has been considered one of the indices of atrial electrical remodelling during atrial fibrillation (AF), which can be assessed from surface ECG by computer-assisted calculation of atrial fibrillatory rate (AFR). Horses have been suggested as a bona fide model for AF studies since horses too, develop lone AF, however data on AF characteristics in horses are extremely sparse and non-invasive characterization of AF complexity using surface ECG processing has not been reported...
December 8, 2017: BMC Cardiovascular Disorders
https://www.readbyqxmd.com/read/29220422/atrioventricular-node-ablation-and-his-bundle-pacing
#3
Pugazhendhi Vijayaraman, Faiz A Subzposh, Angela Naperkowski
Aims: Atrioventricular node ablation (AVNA) and right ventricular pacing (RVP) are effective therapies for patients with atrial fibrillation (AF) and rapid ventricular rates. His bundle pacing (HBP) is a physiologic alternative to RVP. The aim of our study is to assess the feasibility and safety of HBP in patients undergoing AVNA and its effect on left ventricular (LV) function. Methods and results: Permanent HBP is the preferred form of ventricular pacing at our institute...
December 1, 2017: Europace: European Pacing, Arrhythmias, and Cardiac Electrophysiology
https://www.readbyqxmd.com/read/29189109/monocentric-experience-of-leadless-pacing-with-focus-on-challenging-cases-for-conventional-pacemaker
#4
Christophe Garweg, Joris Ector, Gabor Voros, Adèle Greyling, Bert Vandenberk, Stefaan Foulon, Rik Willems
AIM: Leadless cardiac pacemaker has been developed to reduce complications related to cardiac pacing and is considered as an alternative to conventional pacemaker although safety and efficacy data in clinical practice are limited. The purpose of this study was to investigate the safety and efficacy profile of Micra Transcatheter Pacing System (TPS) used in daily clinical activity with a focus on challenging cases for conventional pacing. METHODS: A total of 66 patients (46 men, 79...
November 30, 2017: Acta Cardiologica
https://www.readbyqxmd.com/read/29186415/atrioventricular-dromotropathy-evidence-for-a-distinctive-entity-in-heart-failure-with-prolonged-pr-interval
#5
Floor C W M Salden, Valentina Kutyifa, Martin Stockburger, Frits W Prinzen, Kevin Vernooy
Heart failure (HF) is often accompanied by atrioventricular (AV) conduction disturbance, represented by prolongation of the PR interval on the electrocardiogram. Studies suggest that PR prolongation exists in at least 10% of HF patients, and it seems more prevalent in the presence of prolonged QRS duration. A prolonged PR interval may result in elevated left ventricular (LV) end-diastolic pressure, diastolic mitral regurgitation, and reduced LV pump function. This seems especially the case in patients with heart disease, in whom it is associated with an increased risk for atrial fibrillation, advanced AV heart block, HF, and death...
November 24, 2017: Europace: European Pacing, Arrhythmias, and Cardiac Electrophysiology
https://www.readbyqxmd.com/read/29180458/clinical-outcomes-after-ablation-of-the-av-junction-in-patients-with-atrial-fibrillation-impact-of-cardiac-resynchronization-therapy
#6
Suneet Mittal, Dan L Musat, Michael H Hoskins, Julie B Prillinger, Gregory J Roberts, Yelena Nabutovsky, Faisal M Merchant
BACKGROUND: Patients with atrial fibrillation (AF) often undergo AV junction ablation (AVJA) and pacemaker implantation. Right ventricular (RV) pacing contributes to increased risk of heart failure (HF), which may be mitigated by biventricular pacing. We sought to determine the impact of AVJA concurrent with RV versus biventricular pacemaker implantation on AF and HF hospitalizations. METHODS AND RESULTS: The MarketScan Commercial and Medicare Supplemental claims database was used to select 18- to 100-year-old patients with AF with pacemaker implantation...
November 27, 2017: Journal of the American Heart Association
https://www.readbyqxmd.com/read/29174249/low-interatrial-septal-pacing-a-simple-method
#7
Asit Das, Dhiman Kahali, Shibananda Dutta
BACKGROUND: Sinus node disease is associated with widespread structural and electrophysiological changes in the atria in addition to abnormalities at the sinus node. The atrial conduction disorder in patients with atrial pacing results in higher incidence of atrial fibrillation. Studies have shown that low interatrial septal pacing is superior to right atrial appendage pacing in preventing persistent or permanent atrial fibrillation in these patients. However, implantation of active fixation lead in low interatrial septal position is difficult and time consuming with conventional stylet, inhibiting application of this method in routine practice...
November 2017: Indian Heart Journal
https://www.readbyqxmd.com/read/29168622/mitral-valve-pressure-gradient-after-percutaneous-mitral-valve-repair-every-beat-counts
#8
Daniel Lavall, Bruno Scheller, Christian Werner, Axel Buob, Felix Mahfoud
A patient presented with symptoms of decompensated heart failure 2 months after percutaneous mitral valve (MV) repair. Echocardiography demonstrated impaired left ventricular function with elevated MV pressure gradients and pulmonary pressures during rapid atrial fibrillation. Heart rate control was achieved by implantation of a biventricular pacemaker with subsequent His-bundle ablation because atrial fibrillation was refractory to medical treatment. During biventricular pacing at different rates (50-110 b...
November 23, 2017: ESC Heart Failure
https://www.readbyqxmd.com/read/29161369/pace-capture-guided-ablation-after-contact-force-guided-pulmonary-vein-isolation-results-of-the-randomized-controlled-dragon-trial
#9
Masaharu Masuda, Masashi Fujita, Osamu Iida, Shin Okamoto, Takayuki Ishihara, Kiyonori Nanto, Takashi Kanda, Akihiro Sunaga, Takuya Tsujimura, Yasuhiro Matsuda, Takuya Ohashi, Masaaki Uematsu
Aims: Before the discovery of contact-force guidance, eliminating pacing capture along the pulmonary vein (PV) isolation line had been reported to improve PV isolation durability and rhythm outcomes. DRAGON (UMIN-CTR, UMIN000015332) aimed to elucidate the efficacy of pace-capture-guided ablation following contact-force-guided PV isolation ablation in paroxysmal atrial fibrillation (AF) patients. Methods and results: A total of 156 paroxysmal AF patients with AF-trigger ectopies from any of the four PVs induced by isoproterenol were randomly assigned to undergo pace-capture-guided ablation along a contact-force-guided isolation line around AF-trigger PVs (PC group, n = 76) or contact-force-guided PV isolation ablation alone (control group, n = 80)...
November 17, 2017: Europace: European Pacing, Arrhythmias, and Cardiac Electrophysiology
https://www.readbyqxmd.com/read/29157449/paroxysmal-atrial-fibrillation-prediction-based-on-hrv-analysis-and-non-dominated-sorting-genetic-algorithm-iii
#10
K H Boon, M Khalil-Hani, M B Malarvili
This paper presents a method that able to predict the paroxysmal atrial fibrillation (PAF). The method uses shorter heart rate variability (HRV) signals when compared to existing methods, and achieves good prediction accuracy. PAF is a common cardiac arrhythmia that increases the health risk of a patient, and the development of an accurate predictor of the onset of PAF is clinical important because it increases the possibility to electrically stabilize and prevent the onset of atrial arrhythmias with different pacing techniques...
January 2018: Computer Methods and Programs in Biomedicine
https://www.readbyqxmd.com/read/29140557/withdrawn-pharmacological-cardioversion-for-atrial-fibrillation-and-flutter
#11
REVIEW
John Cordina, Gillian E Mead
BACKGROUND: Atrial fibrillation is the commonest cardiac dysrhythmia. It is associated with significant morbidity and mortality. There are two approaches to the management of atrial fibrillation: controlling the ventricular rate or converting to sinus rhythm in the expectation that this would abolish its adverse effects. OBJECTIVES: To assess the effects of pharmacological cardioversion of atrial fibrillation in adults on the annual risk of stroke, peripheral embolism, and mortality...
November 15, 2017: Cochrane Database of Systematic Reviews
https://www.readbyqxmd.com/read/29139149/underrecognized%C3%A2-entity-of-the-transient-rise-in-the-atrial-capture-threshold-early-after-dual-chamber-pacemaker-implantation
#12
Yoshiko Uehara, Kentaro Yoshida, Akira Kimata, Kojiro Ogawa, Daisuke Abe, Yasuaki Tsumagari, Hidekazu Tsuneoka, Yoshiaki Yui, Yoko Ito, Mari Ebine, Noriyuki Takeyasu, Kazutaka Aonuma, Akihiko Nogami
BACKGROUND: Steroid-eluting pacemaker leads suppress acute rises in pacing threshold by preventing inflammatory processes. However, we occasionally encounter not persistent but transient rise in the atrial capture threshold (TRACT) early after pacemaker implantation. We believe that this phenomenon is underrecognized in clinical practice and may potentially lead to unnecessary reintervention. We aimed to clarify the prevalence, predictors, and possible mechanisms of TRACT. METHODS AND RESULTS: We reviewed clinical records from 239 consecutive patients who underwent dual-chamber pacemaker implantation for sick sinus syndrome (SSS) (N = 102) or atrioventricular block (AVB) (N = 137)...
November 15, 2017: Pacing and Clinical Electrophysiology: PACE
https://www.readbyqxmd.com/read/29136617/prognostic-factors-in-patients-with-an-implanted-pacemaker-after-80-years-of-age-in-a-4-year-follow-up
#13
Krystyna Krzemień-Wolska, Andrzej Tomasik, Celina Wojciechowska, Karolina Barańska-Pawełczak, Ewa Nowalany-Kozielska, Wojciech Jacheć
BACKGROUND: The controversy over electrotherapy for patients aged >80 years occurs already at the stage of qualification for this treatment type and concerns optimal device selection, the implantation strategy, and the overall benefit from pacemaker therapy. The group also has a considerable number of cardiovascular risk factors, and the data from the literature on the impact of the pacing mode on the remote prognosis of this group are ambiguous. OBJECTIVE: Assessment of the risk factors for death among patients with implanted pacemakers >80 years of age in a 4-year follow-up...
November 15, 2017: Gerontology
https://www.readbyqxmd.com/read/29133380/atrial-substrate-and-triggers-of-paroxysmal-atrial-fibrillation-in-patients-with-obstructive-sleep-apnea
#14
MULTICENTER STUDY
Elad Anter, Luigi Di Biase, Fernando M Contreras-Valdes, Carola Gianni, Sanghamitra Mohanty, Cory M Tschabrunn, Juan F Viles-Gonzalez, Eran Leshem, Alfred E Buxton, Guy Kulbak, Rim N Halaby, Peter J Zimetbaum, Jonathan W Waks, Robert J Thomas, Andrea Natale, Mark E Josephson
BACKGROUND: Obstructive sleep apnea (OSA) is associated with atrial remodeling, atrial fibrillation (AF), and increased incidence of arrhythmia recurrence after pulmonary vein (PV) isolation. We aimed to characterize the atrial substrate, including AF triggers in patients with paroxysmal AF and OSA. METHODS AND RESULTS: In 86 patients with paroxysmal AF (43 with ≥moderate OSA [apnea-hypopnea index ≥15] and 43 without OSA [apnea-hypopnea index <5]), right atrial and left atrial voltage distribution, conduction velocities, and electrogram characteristics were analyzed during atrial pacing...
November 2017: Circulation. Arrhythmia and Electrophysiology
https://www.readbyqxmd.com/read/29133182/a-novel-method-for-localization-and-ablation-of-conduction-gaps-after-wide-antral-circumferential-ablation-of-pulmonary-veins
#15
Raoul Bacquelin, Raphaël P Martins, Nathalie Behar, Vincent Galand, Baptiste Polin, Jonathan Lacaze, Frédéric Sebag, Christophe Leclercq, Jean-Claude Daubert, Philippe Mabo, Dominique Pavin
BACKGROUND: Atrial fibrillation ablation is often performed by achieving pulmonary vein isolation using the "wide antral circumferential ablation" (WACA) technique, but many pulmonary veins remain connected because of conduction gaps in the ablation line. AIM: To analyse the efficacy of a novel technique based on pacing manoeuvres to detect gaps in an initial WACA lesion. METHODS: Patients referred for radiofrequency atrial fibrillation ablation were enrolled prospectively...
November 10, 2017: Archives of Cardiovascular Diseases
https://www.readbyqxmd.com/read/29132930/a-novel-algorithm-increases-the-delivery-of-effective-cardiac-resynchronization-therapy-during-atrial-fibrillation-the-crtee-randomized-cross-over-trial
#16
Christopher J Plummer, Christopher M Frank, Zsolt Bári, Yahya S Al Hebaishi, Ruth Nicholson Klepfer, Robert W Stadler, Subham Ghosh, Shufeng Liu, Suneet Mittal
BACKGROUND: Cardiac resynchronization therapy (CRT) requires a high % of ventricular pacing (%Vp) to maximize its clinical benefits. Atrial fibrillation (AF) has been shown to reduce %Vp in CRT due to competition with irregular intrinsic atrio-ventricular (AV) conduction. We report the results of a prospective randomized cross-over trial evaluating the amount of effective CRT delivered during AF with a novel algorithm (eCRTAF). OBJECTIVE: To determine whether eCRTAF increases the amount of effective CRT delivered during AF when compared to a currently available rate regularization algorithm...
November 10, 2017: Heart Rhythm: the Official Journal of the Heart Rhythm Society
https://www.readbyqxmd.com/read/29131294/clinical-echocardiographic-and-pacing-parameters-affecting-atrial-fibrillation-burden-in-tachycardia-bradycardia-patients
#17
Jan Bohdan Ciszewski, Tomasz Chwyczko, Ilona Kowalik, Wojciech Majda, Michał Mirosław Farkowski, Agnieszka Jankowska, Anna Borowiec, Paweł Syska, Hanna Szwed, Mariusz Pytkowski
BACKGROUND: The influence of different factors on the atrial fibrillation (AF) development in the population of tachycardia bradycardia syndrome (TBS) patients remains unclear. There is no data examining such an impact of different right ventricular pacing percentage (RVp%) profiles. AIM: The purpose of the study was to evaluate the relationship between the AF burden (AFB) and different clinical, echocardiographic and pacing parameters in TBS patients. METHODS: We performed a prospective, one-year registry of TBS patients with documented AF referred to the dual-chamber pacemaker (DDD) implantation...
November 13, 2017: Kardiologia Polska
https://www.readbyqxmd.com/read/29100590/anemia-and-the-risk-of-life-threatening-ventricular-tachyarrhythmias-from-the-israeli-implantable-cardioverter-defibrillator-registry
#18
Ido Goldenberg, Alon Barsheshet, Avishag Laish-Farkash, Moshe Swissa, Jorge E Schliamser, Yoav Michowitz, Michael Glikson, Mahmoud Suleiman
Anemia was shown to be associated with increased risk for adverse events in patients with heart failure (HF). However, there are limited data on the association between anemia and the risk for ventricular arrhythmias (VAs) in patients with an implantable cardioverter defibrillator (ICD). The present study population comprised 2,352 patients who were enrolled and prospectively followed up in the Israeli ICD Registry. The risk for a first appropriate ICD shock for VA was assessed by the presence of anemia, categorized at the lower tertile of hemoglobin distribution (≤12 g/dL [n = 753])...
October 5, 2017: American Journal of Cardiology
https://www.readbyqxmd.com/read/29068807/antiarrhythmic-effects-of-combining-dofetilide-and-ranolazine-in-a-model-of-acutely-induced-atrial-fibrillation-in-horses
#19
Helena Carstensen, Line Kjær, Maria Mathilde Haugaard, Mette Flethøj, Eva Zander Hesselkilde, Jørgen K Kanters, Steen Pehrson, Rikke Buhl, Thomas Jespersen
BACKGROUND: Antiarrhythmic compounds against atrial fibrillation (AF) often have reduced efficacy and may display cardiac and/or non-cardiac toxicity. Efficacy can be improved by combining two compounds with distinct mechanisms, and it may be possible to use lower doses of each compound, thereby reducing the likelihood of adverse side-effects. The purpose of this study was to investigate whether the effective doses of dofetilide and ranolazine can be reduced if the drugs are combined...
October 25, 2017: Journal of Cardiovascular Pharmacology
https://www.readbyqxmd.com/read/29056544/lack-of-prognostic-value-of-atrial-arrhythmia-inducibility-and-change-in-inducibility-status-following-catheter-ablation-of-atrial-fibrillation
#20
Pasquale Santangeli, Erica S Zado, Fermin C Garcia, Michael P Riley, David Lin, David S Frankel, Gregory E Supple, Robert D Schaller, Sanjay Dixit, David J Callans, Francis E Marchlinski
BACKGROUND: Prior studies have suggested a role of atrial arrhythmia inducibility as an endpoint of catheter ablation of atrial fibrillation (AF). The prognostic value of non-inducibility after ablation and of a change in inducibility status have not been investigated in large studies. OBJECTIVE: We evaluated the prognostic role of non-inducibility and of a change in inducibility status after ablation of AF. METHODS: We studied 305 consecutive patients with AF (66% paroxysmal) undergoing antral pulmonary vein (PV) isolation plus non-PV triggers ablation...
October 19, 2017: Heart Rhythm: the Official Journal of the Heart Rhythm Society
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