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https://www.readbyqxmd.com/read/28917560/outcomes-of-rescue-cardiopulmonary-support-for-periprocedural-acute-hemodynamic-decompensation-in-patients-undergoing-catheter-ablation-of-electrical-storm
#1
Andres Enriquez, Jackson Liang, Javier Gentile, Robert Schaller, Gregory Supple, David S Frankel, Fermin Garcia, Joyce Wald, Edo Y Birati, J Eduardo Rame, Christian Bermudez, David Callans, Francis Marchlinski, Pasquale Santangeli
BACKGROUND: In patients with ventricular tachycardia/fibrillation (VT/VF) electrical storm (ES) undergoing catheter ablation (CA), hypotension due to refractory VT/VF, use of anesthesia and cardiac stunning due to repeated ICD shocks might precipitate acute hemodynamic decompensation (AHD). OBJECTIVE: We evaluated the outcomes of emergent cardiopulmonary support with extracorporeal membrane oxygenation (ECMO) to rescue AHD in patients undergoing CA of ES. METHODS: Between 2010 and 2016, 21 patients with ES (VT in 11 and PVC-triggered VF in 10) were referred for CA and had periprocedural AHD requiring emergent ECMO support...
September 13, 2017: Heart Rhythm: the Official Journal of the Heart Rhythm Society
https://www.readbyqxmd.com/read/28900864/ventricular-tachycardia-with-icd-shocks-when-to-medicate-and-when-to-ablate
#2
REVIEW
Amir AbdelWahab, John Sapp
PURPOSE OF REVIEW: Ventricular tachycardia occurrence in implantable cardioverter defibrillator (ICD) patients may result in shock delivery and is associated with increased morbidity and mortality. In addition, shocks may have deleterious mechanical and psychological effects. Prevention of ventricular tachycardia (VT) recurrence with the use of antiarrhythmic drugs or catheter ablation may be warranted. Antiarrhythmic drugs are limited by incomplete efficacy and an unfavorable adverse effect profile...
September 13, 2017: Current Cardiology Reports
https://www.readbyqxmd.com/read/28879778/percutaneous-extracorporeal-membrane-oxygenation-in-electrical-storm-five-case-reports-addressing-efficacy-transferring-allowance-or-radiofrequency-ablation-support
#3
Aitor Uribarri, Loreto Bravo, Javier Jimenez-Candil, Javier Martin-Moreiras, Eduardo Villacorta, Pedro L Sanchez
Extracorporeal membrane oxygenation systems have undergone rapid technological improvements and are now feasible options for medium-term support of severe cardiac or pulmonary failure. We report five cases of electrical storm that was rescued by the insertion of peripheral veno-arterial extracorporeal membrane oxygenation systems. This device could help to restore systemic circulation as well as permitting organ perfusion in patients with cardiogenic shock in relation to electrical storm thus achieving greater electrical stability...
September 1, 2017: European Heart Journal. Acute Cardiovascular Care
https://www.readbyqxmd.com/read/28843418/successful-ventricular-tachycardia-ablation-in-patients-with-electrical-storm-reduces-recurrences-and-improves-survival
#4
Pasquale Vergara, Roderick Tung, Marmar Vaseghi, Chiara Brombin, David Frankel, Luigi Di Biase, Koichi Nagashima, Usha Tedrow, Wendy S Tzou, William H Sauer, Nilesh Mathuria, Shiro Nakahara, Kairav Vakil, Venkat Tholakanahalli, T Jared Bunch, J Peter Weiss, Timm Dickfeld, Rama Vunnam, Dhanunjaya Lakireddy, J David Burkhardt, Anna Correra, Pasquale Santangeli, David Callans, Andrea Natale, Francis Marchlinski, William G Stevenson, Kalyanam Shivkumar, Paolo Della Bella
BACKGROUND: ▪▪▪. OBJECTIVE: The purpose of this study was to evaluate the characteristics and outcome of patients undergoing ablation after electrical storm (ES). METHODS: Clinical and procedural characteristics, ventricular tachycardia (VT) recurrence, and mortality rates from 1940 patients undergoing VT ablation were compared between patients with and without ES. RESULTS: The group of 677 patients with ES (34...
August 24, 2017: Heart Rhythm: the Official Journal of the Heart Rhythm Society
https://www.readbyqxmd.com/read/28817194/prediction-and-prognosis-of-ventricular-tachycardia-recurrence-after-catheter-ablation-with-remote-magnetic-navigation-for-electrical-storm-in-patients-with-ischemic-cardiomyopathy
#5
Qi Jin, Peter Karl Jacobsen, Steen Pehrson, Xu Chen
BACKGROUND: Ventricular tachycardia (VT) recurrence after catheter ablation for electrical storm is commonly seen in patients with ischemic cardiomyopathy (ICM). HYPOTHESIS: We hypothesized that VT recurrence can be predicted and be related to the all-cause death after VT storm ablation guided by remote magnetic navigation (RMN) in patients with ICM. METHODS: A total of 54 ICM patients (87% male; mean age, 65 ± 7.1 years) presenting with VT storm undergoing acute ablation using RMN were enrolled...
August 17, 2017: Clinical Cardiology
https://www.readbyqxmd.com/read/28803583/cross-sectional-survey-of-long-term-care-facilities-in-the-rockaway-peninsula-preparedness-and-response-during-hurricane-sandy
#6
Lynn Jiang, Christopher Tedeschi, Saleena Subaiya
BACKGROUND: Few studies have described the challenges experienced by long-term care facilities (LTCFs) following Hurricane Sandy. This study examined LTCF preparedness and experiences during and after the storm. METHODS: A cross-sectional survey was conducted 2 years after Hurricane Sandy to assess LTCF demographics, preparation, and post-storm resources. Surveys were conducted at LTCFs located on the Rockaway Peninsula of New York City. All LTCFs located in a heavily affected area were approached...
August 14, 2017: Disaster Medicine and Public Health Preparedness
https://www.readbyqxmd.com/read/28781852/electrical-storm-in-the-inflamed-heart-ventricular-tachycardia-due-to-myocarditis
#7
Gustav Mattsson, Peter Magnusson
Electrical storm during the acute inflammatory phase caused by myocarditis may be resistant to antiarrhythmic therapy. Cardiac imaging including magnetic resonance tomography, positron emission tomography, and endomyocardial biopsy are crucial to guide potential therapeutic options. Optimal management involves a multidisciplinary approach, including expertise beyond cardiology.
August 2017: Clinical Case Reports
https://www.readbyqxmd.com/read/28754398/management-of-implantable-cardioverter-defibrillator-recipients-care-beyond-guidelines
#8
REVIEW
François Philippon, Laurence D Sterns, Pablo B Nery, Ratika Parkash, David Birnie, Claus Rinne, Blandine Mondesert, Derek Exner, Matthew Bennett
This companion article is intended to address common clinical scenarios in patients with implantable defibrillators that were not addressed in the 2016 Canadian Cardiovascular Society/Canadian Heart Rhythm Society implantable cardioverter defibrillator guidelines including recommendations for device programming to improve detection, to minimize shocks (appropriate and inappropriate), and to minimize ventricular pacing. Important issues at the time of replacement such as device prescription, technical aspects (vascular access, extraction), and management of components on advisories are also discussed...
August 2017: Canadian Journal of Cardiology
https://www.readbyqxmd.com/read/28750887/probing-the-interplay-between-dendritic-spine-morphology-and-membrane-bound-diffusion
#9
Max Adrian, Remy Kusters, Cornelis Storm, Casper C Hoogenraad, Lukas C Kapitein
Dendritic spines are protrusions along neuronal dendrites that harbor the majority of excitatory postsynapses. Their distinct morphology, often featuring a bulbous head and small neck that connects to the dendritic shaft, has been shown to facilitate compartmentalization of electrical and cytoplasmic signaling stimuli elicited at the synapse. The extent to which spine morphology also forms a barrier for membrane-bound diffusion has remained unclear. Recent simulations suggested that especially the diameter of the spine neck plays a limiting role in this process...
July 24, 2017: Biophysical Journal
https://www.readbyqxmd.com/read/28706587/management-of-ventricular-tachycardia-storm-in-patients-with-structural-heart-disease
#10
REVIEW
Daniele Muser, Pasquale Santangeli, Jackson J Liang
Electrical storm (ES) is a medical emergency characterized by repetitive episodes of sustained ventricular arrhythmias (VAs) in a limited amount of time (at least 3 within a 24-h period) leading to repeated appropriate implantable cardioverter defibrillator therapies. The occurrence of ES represents a major turning point in the natural history of patients with structural heart disease being associated with poor short- and long-term survival particularly in those with compromised left ventricular ejection fraction (LVEF) that can develop hemodynamic decompensation and multi-organ failure...
June 26, 2017: World Journal of Cardiology
https://www.readbyqxmd.com/read/28704670/cryo-conditioned-rocky-coast-systems-a-case-study-from-wilczekodden-svalbard
#11
M C Strzelecki, M Kasprzak, M Lim, Z M Swirad, M Jaskólski, Ł Pawłowski, P Modzel
This paper presents the results of an investigation into the processes controlling development of a cryo-conditioned rock coast system in Hornsund, Svalbard. A suite of nested geomorphological and geophysical methods have been applied to characterise the functioning of rock cliffs and shore platforms influenced by lithological control and geomorphic processes driven by polar coast environments. Electrical resistivity tomography (ERT) surveys have been used to investigate permafrost control on rock coast dynamics and reveal the strong interaction with marine processes in High Arctic coastal settings...
December 31, 2017: Science of the Total Environment
https://www.readbyqxmd.com/read/28703268/electrical-storm-secondary-to-theophylline-prescription-in-a-patient-with-implantable-cardioverter-defibrillator
#12
Afef Ben Halima, Zied Ibn Elhadj, Marouane Boukhris, Farouk Abcha, Salem Kachboura
No abstract text is available yet for this article.
2017: Kardiologia Polska
https://www.readbyqxmd.com/read/28694398/renal-sympathetic-denervation-assisted-treatment-of-electrical-storm-due-to-polymorphic-ventricular-tachycardia-in-a-patient-with-cathecolaminergic-polymorphic-ventricular-tachycardia
#13
Tolga Aksu, Tümer Erdem Güler, Kazım Serhan Özcan, Serdar Bozyel, Kıvanç Yalın
Electrical storm (ES) is not a rare clinical entity. Sympathetic hyperactivity may play critical role in development and continuation of ES. Some recent reports have demonstrated that catheter-based renal sympathetic denervation (RSD) may reduce sympathetic activation and have a potential role in reducing arrhythmic burden. A 46-year-old man was admitted to clinic with frequent implantable cardioverter defibrillator shocks and ES related to catecholaminergic polymorphic ventricular tachycardia (VT). Tachycardia was unresponsive to administration of beta-blockers, verapamil, and flecainide...
July 2017: Türk Kardiyoloji Derneği Arşivi: Türk Kardiyoloji Derneğinin Yayın Organıdır
https://www.readbyqxmd.com/read/28685659/electrical-storm-secondary-to-cardiac-metastasis-of-non-small-cell-lung-cancer
#14
Sercan Okutucu, Hakan Aksoy, Begum Yetis Sayin, Ali Oto
No abstract text is available yet for this article.
July 7, 2017: Acta Cardiologica
https://www.readbyqxmd.com/read/28680620/ranolazine-safe-and-effective-in-a-patient-with-hypertensive-cardiomyopathy-and-multiple-episodes-of-electrical-storm
#15
Panagiotis Margos, Nikolaos Margos, Nadiya Mokadem, Ilias Patsiotis, Athanasios Kranidis
Among implantable cardioverter-defibrillator (ICD) recipients, there are patients with recurrent episodes of electrical storm (ES), retractable to the optimal antiarrhythmic drug therapy or invasive ablation procedures. A relatively novel anti-ischemic drug with also antiarrhythmic properties, ranolazine, may effectively suppress ventricular arrhythmias in such patients for a long period of time.
July 2017: Clinical Case Reports
https://www.readbyqxmd.com/read/28669440/electrical-storms-in-patients-with-apical-aneurysms-and-hypertrophic-cardiomyopathy-with-midventricular-obstruction-a-case-series
#16
Anita Nguyen, Hartzell V Schaff
No abstract text is available yet for this article.
June 8, 2017: Journal of Thoracic and Cardiovascular Surgery
https://www.readbyqxmd.com/read/28618061/electrical-storm-in-a-patient-with-duchenne-muscular-dystrophy-cardiomyopathy-triggered-by-abrupt-%C3%AE-blocker-interruption
#17
Nikolaos Fragakis, Melani Sotiriadou, Lydia Krexi, Vassilios Vassilikos
We present a case of a young man with Duchenne muscular dystrophy cardiomyopathy (DMDC) having an implantable cardioverter defibrillator for secondary prevention, who presented with electrical storm shortly after β-blocker interruption. The patient was stabilized and remained free of ventricular arrhythmias soon after reinitiating b-adrenoreceptor antagonists. The present case highlights the importance of sympathetic blockage in patients with DMDC due to existing pathophysiology of excess diastolic Ca(2+) leak from sarcoplasmic reticulum as a result of ryanodine receptor dysfunction...
June 15, 2017: Annals of Noninvasive Electrocardiology
https://www.readbyqxmd.com/read/28595339/cardiac-resynchronization-therapy-and-electrical-storm-results-of-the-observational-registry-on-long-term-outcome-of-icd-patients-observo-icd
#18
Federico Guerra, Pietro Palmisano, Gabriele Dell'Era, Matteo Ziacchi, Ernesto Ammendola, Giulia Pongetti, Paolo Bonelli, Francesca Patani, Chiara Devecchi, Michele Accogli, Eraldo Occhetta, Gerardo Nigro, Mauro Biffi, Giuseppe Boriani, Alessandro Capucci
Aims: Electrical storm (ES) is a condition defined as three or more episodes of ventricular fibrillation (VF) or ventricular tachycardia (VT) within 24 h, and usually coexist with advanced heart failure in patients with structural heart disease. The aim of the present study is to test whether cardiac resynchronization therapy (CRT) can be associated with a lower incidence of ES. Methods and results: The OBSERVO-ICD (NCT02735811) is a multicentre, retrospective registry, enrolling all consecutive patients undergoing ICD or CRT-D implantation from 2010 to 2012 in five Italian high-volume arrhythmia centres...
June 7, 2017: Europace: European Pacing, Arrhythmias, and Cardiac Electrophysiology
https://www.readbyqxmd.com/read/28576780/outcomes-of-ventricular-tachycardia-ablation-using-percutaneous-left-ventricular-assist-devices
#19
COMPARATIVE STUDY
Shigeki Kusa, Marc A Miller, William Whang, Yoshinari Enomoto, Jorge G Panizo, Jin Iwasawa, Subbarao Choudry, Sean Pinney, Anthony Gomes, Noelle Langan, Jacob S Koruth, Andre d'Avila, Vivek Y Reddy, Srinivas R Dukkipati
BACKGROUND: Although percutaneous left ventricular assist devices (pLVADs) facilitate mapping and ablation of hemodynamically unstable ventricular tachycardia (VT), there is limited data whether clinical outcomes are improved. We sought to retrospectively compare the outcomes of patients undergoing scar-related VT ablation with and without pLVAD support. METHODS AND RESULTS: The study population comprised 194 patients (109 pLVAD and 85 non-pLVAD). The pLVAD group more often had dilated cardiomyopathy (33% versus 13%; P=0...
June 2017: Circulation. Arrhythmia and Electrophysiology
https://www.readbyqxmd.com/read/28535346/optimization-of-current-injection-in-algainp-core-shell-nanowire-light-emitting-diodes
#20
Pyry Kivisaari, Alexander Berg, Mohammad Karimi, Kristian Storm, Steven Limpert, Jani Oksanen, Lars Samuelson, Håkan Pettersson, Magnus T Borgström
Core-shell nanowires offer great potential to enhance the efficiency of light-emitting diodes (LEDs) and expand the attainable wavelength range of LEDs over the whole visible spectrum. Additionally, nanowire (NW) LEDs can offer both improved light extraction and emission enhancement if the diameter of the wires is not larger than half the emission wavelength (λ/2). However, AlGaInP nanowire LEDs have so far failed to match the high efficiencies of traditional planar technologies, and the parameters limiting the efficiency remain unidentified...
June 14, 2017: Nano Letters
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