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https://www.readbyqxmd.com/read/28339622/augmented-qrs-notching-and-macroscopic-t-wave-alternans-preceding-polymorphic-ventricular-tachycardia-in-a-patient-with-electrical-storm
#1
Shingo Minatoguchi, Nobuhiro Takasugi, Tomoki Kubota, Hiroaki Ushikoshi, Kazuhiko Nishigaki, Shinya Minatoguchi
No abstract text is available yet for this article.
February 17, 2017: Europace: European Pacing, Arrhythmias, and Cardiac Electrophysiology
https://www.readbyqxmd.com/read/28314850/temporal-trends-and-temperature-related-incidence-of-electrical-storm-the-tempest-study-temperature-related-incidence-of-electrical-storm
#2
Federico Guerra, Paolo Bonelli, Marco Flori, Laura Cipolletta, Corrado Carbucicchio, Maite Izquierdo, Edward Kozluk, Kalyanam Shivkumar, Marmar Vaseghi, Francesca Patani, Claudio Cupido, Salvatore Pala, Ricardo Ruiz-Granell, Angel Ferrero, Claudio Tondo, Alessandro Capucci
BACKGROUND: The occurrence of ventricular tachyarrhythmias seems to follow circadian, daily, and seasonal distributions. Our aim is to identify potential temporal patterns of electrical storm (ES), in which a cluster of ventricular tachycardias or ventricular fibrillation, negatively affects short- and long-term survival. METHODS AND RESULTS: The TEMPEST study (Circannual Pattern and Temperature-Related Incidence of Electrical Storm) is a patient-level, pooled analysis of previously published data sets...
March 2017: Circulation. Arrhythmia and Electrophysiology
https://www.readbyqxmd.com/read/28314846/circadian-and-weekly-patterns-of-electrical-storm-a-role-for-stress
#3
EDITORIAL
Eric J Berkowitz, Rachel Lampert
No abstract text is available yet for this article.
March 2017: Circulation. Arrhythmia and Electrophysiology
https://www.readbyqxmd.com/read/28291121/extracorporeal-life-support-for-electrical-storm-or-for-cardiogenic-shock-with-ventricular-arrhythmia
#4
Corstiaan A den Uil
No abstract text is available yet for this article.
April 2017: Critical Care Medicine
https://www.readbyqxmd.com/read/28275618/extracorporeal-life-support-for-refractory-ventricular-tachycardia
#5
REVIEW
Sujatha P Bhandary, Nicholas Joseph, James P Hofmann, Theodosios Saranteas, Thomas J Papadimos
Extracorporeal life support (ECLS) is a very effective bridging therapy in patients with refractory ventricular tachycardia (VT) associated with cardiogenic shock. A moribund patient in extremis, is not amenable to optimization by standard ACC/AHA guidelines. New approaches and novel salvage techniques are necessary to improve outcomes in patients with refractory clinical settings such as malignant ventricular arrhythmias, cardiac arrest, cardiogenic shock and/or pulmonary failure until further management options are explored...
February 2017: Annals of Translational Medicine
https://www.readbyqxmd.com/read/28261825/electrical-storm-in-icd-recipients-with-arrhythmogenic-right-ventricular-cardiomyopathy
#6
Kang Yin, Ligang Ding, Wei Hua, Shu Zhang
BACKGROUND: Implantable cardioverter defibrillator (ICD) is the most important management for prevention of sudden cardiac death (SCD) in patients with arrhythmogenic right ventricular cardiomyopathy (ARVC). However, some patients may receive multiple ICD therapies in a short period, a condition referred as "electrical storm". OBJECTIVES: This study aimed to determine the prevalence, therapeutic options, and prognostic implications of ES in ARVC patients with an ICD...
March 6, 2017: Pacing and Clinical Electrophysiology: PACE
https://www.readbyqxmd.com/read/28238302/the-effects-of-pure-potassium-channel-blocker-nifekalant-and-sodium-channel-blocker-mexiletine-on-malignant-ventricular-tachyarrhythmias
#7
Sou Otuki, Kanae Hasegawa, Hiroshi Watanabe, Goro Katsuumi, Nobue Yagihara, Kenichi Iijima, Akinori Sato, Daisuke Izumi, Hiroshi Furushima, Masaomi Chinushi, Yoshifusa Aizawa, Tohru Minamino
BACKGROUND: Patients with repetitive ventricular tachyarrhythmias - so-called electrical storm - frequently require antiarrhythmic drugs. Amiodarone is widely used for the treatment of electrical storm but is ineffective in some patients. Therefore, we investigated the efficacy of stepwise administration of nifekalant, a pure potassium channel blocker, and mexiletine for electrical storm. METHODS: This study included 44 patients with repetitive ventricular tachyarrhythmias who received stepwise therapy with nifekalant and mexiletine for electrical storm...
September 8, 2016: Journal of Electrocardiology
https://www.readbyqxmd.com/read/28237968/nationwide-experience-of-catecholaminergic-polymorphic-ventricular-tachycardia-caused-by-ryr2-mutations
#8
Anders Krogh Broendberg, Jens Cosedis Nielsen, Jesper Bjerre, Lisbeth Noerum Pedersen, Jens Kristensen, Finn Lund Henriksen, Henning Bundgaard, Henrik Kjaerulf Jensen
OBJECTIVE: The aim of this study was to characterise disease penetrance, course of disease and use of antiarrhythmic medication and implantable cardioverter-defibrillator (ICD) therapy in a Danish nationwide cohort of patients with catecholaminergic polymorphic ventricular tachycardia (CPVT) due to mutations in the ryanodine receptor-2 (RyR2) gene. METHODS: The study population was identified through the national hereditary heart disease database (Progeny). The study population was divided into three groups: probands, symptomatic and asymptomatic relatives...
February 25, 2017: Heart: Official Journal of the British Cardiac Society
https://www.readbyqxmd.com/read/28220241/-icd-in-elderly-patients
#9
Carsten W Israel
Treatment with an implantable cardioverter-defibrillator (ICD) represents a prognostic but not symptomatic therapy. It should therefore be restricted to patients where an improvement of prognosis is possible and reasonable. ICD implantation should only be performed in patients with a life expectancy of at least 1 year at reasonable quality of life. The decision in which patient improvement of prognosis is no longer a desirable target is problematic, both medically and ethically. It is not entirely clear in which elderly patient an ICD therapy can convey prognostic benefit despite comorbidity and competitive life-threatening diseases, as it is unclear how old age should be defined...
February 20, 2017: Herzschrittmachertherapie & Elektrophysiologie
https://www.readbyqxmd.com/read/28208496/extension-of-discrete-tribocharging-models-to-continuous-size-distributions
#10
Dylan Carter, Christine Hartzell
Triboelectric charging, the phenomenon by which electrical charge is exchanged during contact between two surfaces, has been known to cause significant charge separation in granular mixtures, even between chemically identical grains. This charging is a stochastic size-dependent process resulting from random collisions between grains. The prevailing models and experimental results suggest that, in most cases, larger grains in a mixture of dielectric grains acquire a positive charge, while smaller grains charge negatively...
January 2017: Physical Review. E
https://www.readbyqxmd.com/read/28187168/outcomes-of-ventricular-tachycardia-ablation-in-patients-with-structural-heart-disease-the-impact-of-electrical-storm
#11
Bashar Aldhoon, Dan Wichterle, Petr Peichl, Robert Čihák, Josef Kautzner
AIMS: To investigate predictors of long-term outcomes after catheter ablation (CA) for ventricular tachycardia (VT) and the impact of electrical storm (ES) prior to index ablation procedures. METHODS: We studied consecutive patients with structural heart disease and VT (n = 328; age: 63±12 years; 88% males; 72% ischaemic cardiomyopathy; LVEF: 32±12%) who had undergone CA. According to presenting arrhythmia at baseline, they were divided into ES (n = 93, 28%) and non-ES groups...
2017: PloS One
https://www.readbyqxmd.com/read/28183572/cervical-sympathetic-blockade-for-the-management-of-electrical-storm
#12
Rehan Ali, Jeffrey Ciccone, Victor Tseng
A 75-year-old man presented with dizziness and fatigue secondary to ventricular and supraventricular arrhythmias. He underwent an elective ablation but continued to suffer from ventricular tachycardia with cardiovascular instability despite antiarrhythmic therapy with multiple agents. The patient continued to develop episodes of ventricular tachycardia and an episode of ventricular fibrillation. Electrical storm encompasses a situation of cardiac instability which may present as several episodes of ventricular tachycardia or ventricular fibrillation in a short period...
February 2017: Journal of Clinical Anesthesia
https://www.readbyqxmd.com/read/28159430/-jamaican-stone-a-potentially-lethal-remedy-for-delaying-ejaculation
#13
Belén Díaz-Antón, Guillermo Alonso-Deniz, Jose Luis Perez-Vela, Javier Molina-Martín de Nicolás, Belen Rubio-Alonso, Alfonso Jurado-Román, Ana Miguel-Gutierrez, Roberto Martin-Asenjo
Poisoning by ingestion of 'Jamaican Stone', a kind of cardioactive steroid, is extremely rare. However, mortality is very high. For this reason, when it occurs, an early and accurate diagnosis represents a critical challenge for clinicians. We present an unusual case of electrical storm caused by this substance.
February 2017: Portuguese Journal of Cardiology: An Official Journal of the Portuguese Society of Cardiology
https://www.readbyqxmd.com/read/28139837/long-term-follow-up-of-arrhythmogenic-right-ventricular-cardiomyopathy-patients-with-an-implantable-cardioverter-defibrillator-for-prevention-of-sudden-cardiac-death
#14
Kang Yin, Ligang Ding, Yuqiu Li, Wei Hua
BACKGROUND: Arrhythmogenic right ventricular cardiomyopathy (ARVC) is a rare inherited cardiomyopathywith a high burden of ventricular arrhythmia, which is an important cause of suddencardiac death (SCD). Implantable cardioverter-defibrillator (ICD) is believed to be the most reliable management against SCD. HYPOTHESIS: Ventricular arrhythmia does not necessarily confer a poor prognosis in ARVC patients with an ICD. METHODS: A total of 39 ARVC patients (34 male) implanted with an ICD at our electrophysiologycenter and followed up continuously were included in this study...
January 31, 2017: Clinical Cardiology
https://www.readbyqxmd.com/read/28127437/effect-of-extracorporeal-cytokine-removal-on-vascular-barrier-function-in-a-septic-shock-patient
#15
Sascha David, Kristina Thamm, Bernhard M W Schmidt, Christine S Falk, Jan T Kielstein
BACKGROUND: Sepsis and septic shock are major healthcare problems, affecting millions of individuals around the world each year. Pathophysiologically, septic multiple organ dysfunction (MOD) is a life-threatening condition caused by an overwhelming systemic inflammatory response of the host's organism to an infection. We experimentally tested if high circulating cytokine levels might increase vascular permeability-a critical hallmark of the disease-and if this phenomenon can be reversed by therapeutic cytokine removal (CytoSorb®) in an exemplary patient...
2017: Journal of Intensive Care
https://www.readbyqxmd.com/read/28105848/simplifying-nanowire-hall-effect-characterization-by-using-a-three-probe-device-design
#16
Olof Hultin, Gaute Otnes, Lars Samuelson, Kristian Storm
Electrical characterization of nanowires is a time-consuming and challenging task due to the complexity of single nanowire device fabrication and the difficulty in interpreting the measurements. We present a method to measure Hall effect in nanowires using a three-probe device that is simpler to fabricate than previous four-probe nanowire Hall devices and allows characterization of nanowires with smaller diameter. Extraction of charge carrier concentration from the three-probe measurements using an analytical model is discussed and compared to simulations...
January 23, 2017: Nano Letters
https://www.readbyqxmd.com/read/28100348/-right-coronary-artery-spasm-induced-acute-inferior-wall-myocardial-infarction-complicating-electrical-storm-a-case-report
#17
J Liang, Y J Zhou, H Y Han
No abstract text is available yet for this article.
January 25, 2017: Zhonghua Xin Xue Guan Bing za Zhi
https://www.readbyqxmd.com/read/28069274/extended-bipolar-left-ventricular-pacing-as-a-possible-therapy-for-late-electrical-storm-induced-by-cardiac-resynchronization-therapy
#18
Dimitrios Asvestas, Richard Balasubramaniam, Mark Sopher, John Paisey, Girish G Babu
Although cardiac resynchronization therapy (CRT) has become a well-established treatment option for patients with drug-refractory severe systolic heart failure, there has been some evidence of adverse proarrhythmic events. We report a case of a patient with ischemic cardiomyopathy who underwent CRT with a defibrillator for primary prevention of sudden cardiac death. Two years after the implantation, the patient presented with electrical storm, which was completely terminated by modifying the left ventricular (LV) pacing configuration from true to extended bipolar LV pacing...
December 30, 2016: Journal of Electrocardiology
https://www.readbyqxmd.com/read/28031851/a-good-excuse-for-skipping-the-test-electrical-storm-in-a-teenager
#19
Patrícia Rodrigues, António Pinheiro-Vieira, Marília Loureiro, Sílvia Álvares, Diana Anjo, Carla Roque, Maria João Sousa, Severo Torres
We describe the case of a teenager with a structurally normal heart that presented with torsades de pointes and cardiac arrest. He had a history of epilepsy in childhood, mild cognitive impairment and cognitive visual dysfunction. The baseline electrocardiogram had prominent J waves and a marked early repolarization pattern in all the leads, with normal QT interval. We discuss the differential diagnosis for this interesting case, as well as the patient's management.
December 2016: Oxford Medical Case Reports
https://www.readbyqxmd.com/read/28024555/innovative-approaches-to-arrhythmic-storm-the-growing-role-of-interventional-procedures
#20
REVIEW
Lena Rivard, Jason Andrade
Arrhythmic or electrical storm (AES) is a clinical condition characterized by 3 or more sustained ventricular arrhythmia episodes leading to appropriate device therapy in a 24-hour period and is associated with very high mortality. The clinical presentation is dramatic, and the management remains challenging. Although pharmacologic treatment and sedation are still part of the initial treatment, newer approaches that include ablation (endocardial, epicardial, or alternative procedures), sympathetic blockade (pharmacologic or by interventional sympathetic denervation), and mechanical hemodynamic support are used increasingly in this setting...
January 2017: Canadian Journal of Cardiology
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