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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
#1
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
#2
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
#3
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
#4
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
#5
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
#6
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
#7
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...
July 26, 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
#8
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
#9
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
#10
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
#11
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
#12
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
#13
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
#14
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
#15
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
#16
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
https://www.readbyqxmd.com/read/28492156/electrical-storm-or-naxos-syndrome-in-an-adult-causing-recurrent-syncope
#17
Muhammad Furrakh Maqbool, Muhammad Sajid, Ahmed Noeman
Among the rare and well-known causes of sudden cardiac death by malignant arrthymias is a condition called arrhythmogenic right ventricular cardiomyopathy. It commonly presents with right ventricular dilatation, dysfunction and ventricular tachycardia of left bundle branch morphology due to fibro-fatty infiltration of right ventricle in second to fifth decade of life, making it an unrecognized and important cause of sudden cardiac death. Two rare variants of arrhythmogenic right ventricular cardiomyopathy are Carvajal syndrome and Naxos syndrome...
April 2017: Journal of the College of Physicians and Surgeons—Pakistan: JCPSP
https://www.readbyqxmd.com/read/28491737/catheter-ablation-of-ventricular-tachycardia-in-the-setting-of-electrical-storm-after-revascularization-of-a-chronic-total-occlusion-of-the-right-coronary-artery-an-uncommon-presentation-of-reperfusion-arrhythmia
#18
Sebastian Koenig, Arash Arya, Gerhard Hindricks, Borislav Dinov
No abstract text is available yet for this article.
November 2016: HeartRhythm Case Reports
https://www.readbyqxmd.com/read/28488109/-epicardial-ablation-of-ventricular-tachycardias
#19
REVIEW
E Ene, P Halbfaß, K Nentwich, K Sonne, M Roos, S Fodor, L Lehmkuhl, F Gietzen, S Barth, K Hamm, T Deneke
Ventricular tachycardias (VT) in patients with structural heart diseases have predominantly a scar-associated reentry mechanism so that substrate-based ablation approaches also have to be used in nearly all procedures. In many VT cases-especially in nonischemic cardiomyopathy (NICM) and arrhythmogenic right ventricular cardiomyopathy-a critical epicardial substrate can be identified as an essential component of the reentry circuit so that for the ablation-based modification of the substrate in these cases an epicardial approach is necessary...
May 9, 2017: Herzschrittmachertherapie & Elektrophysiologie
https://www.readbyqxmd.com/read/28459967/survival-and-electrotransformation-of-pseudomonas-syringae-strains-under-simulated-cloud-like-conditions
#20
Laurine S Blanchard, Anaïs Monin, Hounaïda Ouertani, Lamia Touaibia, Elisa Michel, François Buret, Pascal Simonet, Cindy E Morris, Sandrine Demanèche
To diversify their genetic material, and thereby allow adaptation to environmental disturbances and colonization of new ecological niches, bacteria use various evolutionary processes, including the acquisition of new genetic material by horizontal transfer mechanisms such as conjugation, transduction and transformation. Electrotransformation mediated by lightning-related electrical phenomena may constitute an additional gene-transfer mechanism occurring in nature. The presence in clouds of bacteria such as Pseudomonas syringae capable of forming ice nuclei that lead to precipitation, and that are likely to be involved in triggering lightning, led us to postulate that natural electrotransformation in clouds may contribute to the adaptive potential of these bacteria...
May 1, 2017: FEMS Microbiology Ecology
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