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Circulation. Arrhythmia and Electrophysiology

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https://read.qxmd.com/read/30755022/his-bundle-pacing-themed-issue
#1
EDITORIAL
Paul J Wang
No abstract text is available yet for this article.
February 2019: Circulation. Arrhythmia and Electrophysiology
https://read.qxmd.com/read/30744401/year-in-review-in-cardiac-electrophysiology
#2
Wendy S Tzou, Ayman A Hussein, Malini Madhavan, Mohan N Viswanathan, Benjamin A Steinberg, Scott R Ceresnak, Darryl R Davis, David S Park, Paul J Wang, Suraj Kapa
No abstract text is available yet for this article.
February 2019: Circulation. Arrhythmia and Electrophysiology
https://read.qxmd.com/read/30739495/direct-visualization-of-the-his-bundle-pacing-lead-placement-by-3-dimensional-electroanatomic-mapping
#3
Michael V Orlov, Ioannis Koulouridis, A J Monin, David Casavant, Mikhail Maslov, Aharon Erez, Amy Hicks, Joe Aoun, John V Wylie
BACKGROUND: His bundle pacing (HBP) remains technically challenging and is currently guided by electrograms and 2-dimensional fluoroscopy. Our objective was to describe a new technique for HBP directly guided by electroanatomic mapping (EAM). METHODS: Twenty-eight patients were included. The atrioventricular septum was mapped via EAM, and His bundle (HB) electrograms, selective, and nonselective HB capture sites were tagged. Pacing leads were connected to EAM, navigated to tagged HB target sites and deployed...
February 2019: Circulation. Arrhythmia and Electrophysiology
https://read.qxmd.com/read/30722682/device-programming-for-his-bundle-pacing
#4
Haran Burri, Daniel Keene, Zachary Whinnett, Francesco Zanon, Pugazhendhi Vijayaraman
Although permanent His bundle pacing was first reported almost 2 decades ago, it is only recently gaining wider adoption, following facilitation of the implant procedure by dedicated tools. An additional challenge is programming the system, as His bundle pacing may have specific configurations and require special considerations which current implantable pulse generators are not designed for. The aim of this article is to provide practical recommendations for programming His bundle pacing, to deliver optimal therapy and ensure patient safety...
February 2019: Circulation. Arrhythmia and Electrophysiology
https://read.qxmd.com/read/30707037/programmed-his-bundle-pacing
#5
Marek Jastrzębski, Paweł Moskal, Agnieszka Bednarek, Grzegorz Kiełbasa, Pugazhendhi Vijayaraman, Danuta Czarnecka
BACKGROUND: During permanent nonselective His bundle (ns-HB) pacing, it is crucial to confirm HB capture/exclude that only right ventricle (RV) myocardial septal pacing is present. Because the effective refractory period (ERP) of the working myocardium is different than the ERP of the HB, we hypothesized that it should be possible to differentiate ns-HB capture from RV myocardial capture using programmed extrastimulus technique. METHODS: In consecutive patients during HB pacemaker implantation, programmed HB pacing was delivered from the screwed-in HB pacing lead...
February 2019: Circulation. Arrhythmia and Electrophysiology
https://read.qxmd.com/read/30707036/novel-method-for-assessment-of-his-bundle-pacing-morphology-using-near-field-and-far-field-device-electrograms
#6
Aditya Saini, Nicholas J Serafini, Shawn Campbell, William B Waugh, Ryan Zimberg, Todd J Sheldon, Jordana Kron, Gautham Kalahasty, Santosh K Padala, Richard Trohman, Richard K Shepard, Jayanthi N Koneru, Pugazhendhi Vijayaraman, Kenneth A Ellenbogen, Parikshit S Sharma
BACKGROUND: The 12-lead ECG is considered the gold standard to differentiate between selective (S), nonselective (NS) His bundle pacing (HBP), and right ventricular septal capture in routine clinical practice. We sought to assess the utility of device EGM recordings as a tool to identify the type of HBP morphology. METHODS: One hundred forty-eight consecutive patients underwent HBP with a 3830 Select Secure lead (Medtronic, Inc) at 3 centers between October 2016 and October 2017...
February 2019: Circulation. Arrhythmia and Electrophysiology
https://read.qxmd.com/read/30704289/low-fluoroscopy-permanent-his-bundle-pacing-using-electroanatomic-mapping
#7
Parikshit S Sharma, Henry D Huang, Richard G Trohman, Angela Naperkowski, Kenneth A Ellenbogen, Pugazhendhi Vijayaraman
BACKGROUND: Conventional permanent His Bundle pacing (PHBP) can be challenging and associated with high fluoroscopy exposure. The aim of this study was to assess the feasibility and safety of performing low fluoroscopy PHBP using 3-dimensional electroanatomic mapping and comparing outcomes with conventional fluoroscopy guided PHBP implants. METHODS: PHBP was performed at 2 centers using electroanatomic mapping-guided low fluoroscopy implantation in 10 patients using a novel protocol (group 1) and conventional fluoroscopy guided implantation in 20 patients (group 2)...
February 2019: Circulation. Arrhythmia and Electrophysiology
https://read.qxmd.com/read/30681348/his-optimized-cardiac-resynchronization-therapy-to-maximize-electrical-resynchronization
#8
Pugazhendhi Vijayaraman, Bengt Herweg, Kenneth A Ellenbogen, Jacek Gajek
Background Cardiac resynchronization therapy (CRT) is an established therapy for patients with cardiomyopathy, left bundle branch block, and heart failure. His bundle pacing (HBP) may also improve clinical outcomes by narrowing QRS duration. The QRS narrowing by HBP may not always be optimal. The aim of the study was to determine if CRT could be optimized by sequential HBP followed by left ventricular (LV) pacing (His-Optimized CRT [HOT-CRT]) to maximize electrical resynchronization. Methods We attempted permanent HBP in 27 patients (left bundle branch block 17, intraventricular conduction defect 5, and right ventricular pacing 5) referred for CRT in addition to LV lead...
February 2019: Circulation. Arrhythmia and Electrophysiology
https://read.qxmd.com/read/30645144/correction-to-atrial-fibrillation-thermographic-and-endoscopic-monitoring-of-patients-safety-algorithm-for-the-esophagus-af-temp-safe-study
#9
(no author information available yet)
No abstract text is available yet for this article.
January 2019: Circulation. Arrhythmia and Electrophysiology
https://read.qxmd.com/read/30636478/genetic-association-study-in-multigenerational-kindreds-with-vasovagal-syncope
#10
Robert Sheldon, M Sarah Rose, Debbie Ritchie, Kristina Martens, Connor Maxey, Jennie Jagers, Jillian Parboosingh, Brenda Gerull
BACKGROUND: Several studies suggest that vasovagal syncope has a genetic origin, but this is unclear. We assessed whether plausible gene variants associate with vasovagal syncope. METHODS: We studied 160 subjects in 9 kindreds comprising 82 fainters and 78 controls. The diagnosis was ascertained with the Calgary Syncope Score. Common genetic variants were genotyped for 12 genes for vascular signaling, potassium channels, the HTR1A(serotonin 5-HT1A receptor), SLC6A4(serotonin reuptake transporter), and COMT(catecholamine O-methyltransferase)...
January 2019: Circulation. Arrhythmia and Electrophysiology
https://read.qxmd.com/read/30636477/npr-c-natriuretic-peptide-receptor-c-modulates-the-progression-of-angiotensin-ii-mediated-atrial-fibrillation-and-atrial-remodeling-in-mice
#11
Hailey J Jansen, Martin Mackasey, Motahareh Moghtadaei, Yingjie Liu, Jaspreet Kaur, Emmanuel E Egom, Jari M Tuomi, Sara A Rafferty, Adam W Kirkby, Robert A Rose
BACKGROUND: Atrial fibrillation (AF) commonly occurs in hypertension and in association with elevated Ang II (angiotensin II) levels. The specific mechanisms underlying Ang II-mediated AF are unclear, and interventions to prevent the effects of Ang II are lacking. NPs (natriuretic peptides), which elicit their effects through specific NP receptors, including NPR-C (natriuretic peptide receptor-C), are cardioprotective hormones that affect cardiac structure and function. METHODS: This study used wild-type and NPR-C knockout (NPR-C-/ - ) mice to investigate the effects of Ang II (3 mg/kg per day for 3 weeks) on AF susceptibility and atrial function using in vivo electrophysiology, high-resolution optical mapping, patch clamping, and molecular biology...
January 2019: Circulation. Arrhythmia and Electrophysiology
https://read.qxmd.com/read/30636476/anatomical-connections-between-the-papillary-muscles-and-the-ventricular-myocardium
#12
Santiago Rivera, Nicolás Vecchio, Paz Ricapito
BACKGROUND: Papillary muscles (PM) ventricular arrhythmias (VAs) exhibit QRS variability, attributed to anisotropy. ECG inconsistencies such as late precordial transition (TZ) and discordant QRS axis may not be solely explained by anisotropic conduction. We sought to determine the presence of anatomic connections of the PM and correlate them with ECG inconsistencies and ablation results. METHODS: Patients with prior PM VAs catheter ablation (N=33/66 PMs) were prospectively evaluated with cardiac resonance for the presence of muscular connection (PMCs) away from the PM base...
January 2019: Circulation. Arrhythmia and Electrophysiology
https://read.qxmd.com/read/30626209/multicenter-study-of-the-validity-of-additional-freeze-cycles-for-cryoballoon-ablation-in-patients-with-paroxysmal-atrial-fibrillation
#13
Koji Miyamoto, Atsushi Doi, Kanae Hasegawa, Yoshiaki Morita, Tsuyoshi Mishima, Ippei Suzuki, Kenichi Kaseno, Kenzaburo Nakajima, Naoya Kataoka, Tsukasa Kamakura, Mitsuru Wada, Kenichiro Yamagata, Kohei Ishibashi, Yuko Y Inoue, Satoshi Nagase, Takashi Noda, Takeshi Aiba, Masanori Asakura, Chisato Izumi, Teruo Noguchi, Hiroshi Tada, Masahiko Takagi, Satoshi Yasuda, Kengo F Kusano
BACKGROUND: Pulmonary vein isolation (PVI) is a cornerstone of catheter ablation in patients with paroxysmal atrial fibrillation, and balloon-based ablation has been recently performed worldwide. The second-generation cryoballoon (CB2) ablation has proven to be highly effective in achieving freedom from paroxysmal atrial fibrillation. However, there are some debatable questions, including the ideal number of freeze cycles. METHODS: The AD-Balloon study (Multicenter Study of the Validity of Additional Freeze Cycles for Cryoballoon Ablation) was designed as a prospective, multicenter, and randomized clinical trial for investigation of the optimal strategy of freeze cycles for the CB2 ablation...
January 2019: Circulation. Arrhythmia and Electrophysiology
https://read.qxmd.com/read/30626208/ventricular-fibrillation-waveform-analysis-during-chest-compressions-to-predict-survival-from-cardiac-arrest
#14
Jason Coult, Jennifer Blackwood, Lawrence Sherman, Thomas D Rea, Peter J Kudenchuk, Heemun Kwok
BACKGROUND: Quantitative measures of the ventricular fibrillation (VF) ECG waveform can assess myocardial physiology and predict cardiac arrest outcomes, making these measures a candidate to help guide resuscitation. Chest compressions are typically paused for waveform measure calculation because compressions cause ECG artifact. However, such pauses contradict resuscitation guideline recommendations to minimize cardiopulmonary resuscitation interruptions. We evaluated a comprehensive group of VF measures with and without ongoing compressions to determine their performance under both conditions for predicting functionally-intact survival, the study's primary outcome...
January 2019: Circulation. Arrhythmia and Electrophysiology
https://read.qxmd.com/read/30606034/pseudoblock-of-the-posterior-mitral-line-with-epicardial-bridging-connections-is-a-frequent-cause-of-complex-perimitral-tachycardias
#15
Michael Barkagan, Ayelet Shapira-Daniels, Eran Leshem, Changyu Shen, Elad Anter
BACKGROUND: The mitral isthmus is the critical element of perimitral reentrant tachycardias. Prolongation in transisthmus conduction time and differential pacing techniques are commonly used to determine block. However, these may not distinguish block from slow conduction or conduction via epicardial bridging connections. The aim of this study was to examine these standard criteria for mitral line block with endocardial and epicardial activation mapping. METHODS: In 56 patients, posterior mitral line was performed using radiofrequency ablation...
January 2019: Circulation. Arrhythmia and Electrophysiology
https://read.qxmd.com/read/30562105/first-in-vivo-use-of-high-resolution-near-infrared-optical-mapping-to-assess-atrial-activation-during-sinus-rhythm-and-atrial-fibrillation-in-a-large-animal-model
#16
LETTER
Brian J Hansen, Ning Li, Katelynn M Helfrich, Suhaib H Abudulwahed, Esthela J Artiga, Matthew E Joseph, Peter J Mohler, John D Hummel, Vadim V Fedorov
No abstract text is available yet for this article.
December 2018: Circulation. Arrhythmia and Electrophysiology
https://read.qxmd.com/read/30562104/predictive-score-for-identifying-survival-and-recurrence-risk-profiles-in-patients-undergoing-ventricular-tachycardia-ablation
#17
Pasquale Vergara, Wendy S Tzou, Roderick Tung, Chiara Brombin, Alessandro Nonis, Marmar Vaseghi, David S Frankel, Luigi Di Biase, Usha Tedrow, Nilesh Mathuria, Shiro Nakahara, Venkat Tholakanahalli, T Jared Bunch, J Peter Weiss, Timm Dickfeld, Dhanunjaya Lakireddy, J David Burkhardt, Pasquale Santangeli, David Callans, Andrea Natale, Francis Marchlinski, William G Stevenson, Kalyanam Shivkumar, William H Sauer, Paolo Della Bella
BACKGROUND: Several distinct risk factors for arrhythmia recurrence and mortality following ventricular tachycardia (VT) ablation have been described. The effect of concurrent risk factors has not been assessed so far; thus, it is not yet possible to estimate these risks for a patient with several comorbidities. The aim of the study was to identify specific risk groups for mortality and VT recurrence using the Survival Tree (ST) analysis method. METHODS: In 1251 patients 16 demographic, clinical and procedure-related variables were evaluated as potential prognostic factors using ST analysis using a recursive partitioning algorithm that searches for relationships among variables...
December 2018: Circulation. Arrhythmia and Electrophysiology
https://read.qxmd.com/read/30562103/supraventricular-tachycardia
#18
Bruce B Lerman, Steven M Markowitz, Jim W Cheung, Christopher F Liu, George Thomas, James E Ip
No abstract text is available yet for this article.
December 2018: Circulation. Arrhythmia and Electrophysiology
https://read.qxmd.com/read/30562102/delayed-gadolinium-enhancement-magnetic-resonance-imaging-detected-anatomic-gap-length-in-wide-circumferential-pulmonary-vein-ablation-lesions-is-associated-with-recurrence-of-atrial-fibrillation
#19
Markus Linhart, Francisco Alarcon, Roger Borràs, Eva M Benito, Fredy Chipa, Jennifer Cozzari, Gala Caixal, Norihiro Enomoto, Alicia Carlosena, Eduard Guasch, Elena Arbelo, Jose Maria Tolosana, Susana Prat-Gonzalez, Rosario J Perea, Adelina Doltra, Marta Sitges, Josep Brugada, Antonio Berruezo, Lluís Mont
BACKGROUND: There is limited knowledge about the impact of anatomic gaps as assessed by delayed gadolinium enhancement cardiac magnetic resonance on atrial fibrillation (AF) recurrence after first pulmonary vein (PV) isolation. METHODS: Consecutive patients underwent delayed gadolinium enhancement cardiac magnetic resonance 3 months after radiofrequency circumferential PV isolation. Delayed gadolinium enhancement cardiac magnetic resonance images were assessed from 360 PV resulting in 2880 segments in the 2×8-segment model from 94 patients (52±11 years, 62% paroxysmal AF)...
December 2018: Circulation. Arrhythmia and Electrophysiology
https://read.qxmd.com/read/30562101/atrial-fibrillation-thermographic-and-endoscopic-monitoring-of-patients
#20
LETTER
James P Hummel, Anis John Kadado, Matthew Baker, Anil K Gehi, J Paul Mounsey, Murrium I Sadaf, Alan D Enriquez, James V Freeman, Joseph G Akar
No abstract text is available yet for this article.
December 2018: Circulation. Arrhythmia and Electrophysiology
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