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https://www.readbyqxmd.com/read/29777285/insufficient-left-ventricular-unloading-after-extracorporeal-membrane-oxygenation-a-case-series-observational-study
#1
W Hu, J Zhou, L Chen, J Huang, W Hu, Y Zhu, T Yuan
BACKGROUND: Extracorporeal membrane oxygenation (ECMO) is a method widely used to support circulation in patients with fulminant myocarditis (FM). However, a common complication associated with ECMO is left ventricular (LV) overload. METHODS: This case series observed the effects of intra-aortic balloon pump (IABP) and beta-blockers for the treatment of LV overload after ECMO. The cases of eight patients with FM who underwent ECMO from September 2009 to July 2016 were reviewed...
May 18, 2018: Herz
https://www.readbyqxmd.com/read/29776063/electrostatic-stiffening-and-induced-persistence-length-for-coassembled-molecular-bottlebrushes
#2
Ingeborg M Storm, Martien A Cohen Stuart, Renko de Vries, Frans A M Leermakers
A self-consistent field analysis for tunable contributions to the persistence length of isolated semiflexible polymer chains including electrostatically driven coassembled deoxyribonucleic acid (DNA) bottlebrushes is presented. When a chain is charged, i.e., for polyelectrolytes, there is, in addition to an intrinsic rigidity, an electrostatic stiffening effect, because the electric double layer resists bending. For molecular bottlebrushes, there is an induced contribution due to the grafts. We explore cases beyond the classical phantom main-chain approximation and elaborate molecularly more realistic models where the backbone has a finite volume, which is necessary for treating coassembled bottlebrushes...
March 2018: Physical Review. E
https://www.readbyqxmd.com/read/29765434/risk-factors-and-prognostic-role-of-an-electrical-storm-in-patients-after-myocardial-infarction-with-an-implanted-icd-for-secondary-prevention
#3
Wojciech Kwaśniewski, Artur Filipecki, Michał Orszulak, Witold Orszulak, Dagmara Urbańczyk, Robert Roczniok, Maria Trusz-Gluza, Katarzyna Mizia-Stec
Introduction: The aim of our study was to determine the risk factors for electrical storm (ES) and to assess the impact of ES on the long-term prognosis in patients after myocardial infarction (MI) with an implantable cardioverter-defibrillator (ICD) for secondary prevention of sudden cardiac death (SCD). Material and methods: We retrospectively analyzed 416 patients with coronary artery disease after MI who had an implanted ICD for secondary prevention of SCD. Fifty (12%) patients had one or more incidents of an electrical storm - the ES (+) group...
April 2018: Archives of Medical Science: AMS
https://www.readbyqxmd.com/read/29759543/long-term-outcomes-of-catheter-ablation-of-electrical-storm-in-nonischemic-dilated-cardiomyopathy-compared-with-ischemic-cardiomyopathy
#4
Daniele Muser, Jackson J Liang, Rajeev K Pathak, Silvia Magnani, Simon A Castro, Tatsuya Hayashi, Fermin C Garcia, Gregory E Supple, Michael P Riley, David Lin, Sanjay Dixit, Erica S Zado, David S Frankel, David J Callans, Francis E Marchlinski, Pasquale Santangeli
OBJECTIVES: The goal of this study was to determine the long-term outcomes of catheter ablation (CA) of electrical storm in patients with nonischemic dilated cardiomyopathy (NIDCM) compared with patients with ischemic cardiomyopathy (ICM). BACKGROUND: CA of ventricular tachycardia (VT) electrical storm has been shown to improve VT-free survival in patients with ICM. Data on the outcomes of CA of electrical storm in patients with NIDCM are insufficient. METHODS: The study included 267 consecutive patients with NIDCM (n = 71; ejection fraction 32 ± 14%) and ICM (n = 196; ejection fraction 28 ± 12%)...
July 2017: JACC. Clinical Electrophysiology
https://www.readbyqxmd.com/read/29757020/recent-advances-in-the-treatment-of-brugada-syndrome
#5
Mariana Argenziano, Charles Antzelevitch
Brugada syndrome (BrS) is an inherited cardiac arrhythmia syndrome characterized by ST-segment elevation in right precordial ECG leads and associated with sudden cardiac death in young adults. The ECG manifestations of BrS are often concealed but can be unmasked by sodium channel blockers and fever. Areas covered: Implantation of a cardioverter defibrillator (ICD) is first-line therapy for BrS patients presenting with prior cardiac arrest or documented VT. A pharmacological approach to therapy is recommended in cases of electrical storm, as an adjunct to ICD and as preventative therapy...
May 14, 2018: Expert Review of Cardiovascular Therapy
https://www.readbyqxmd.com/read/29753550/rescue-procedure-for-an-electrical-storm-using-robotic-non-invasive-cardiac-radio-ablation
#6
Raphaël Jumeau, Mahmut Ozsahin, Juerg Schwitter, Véronique Vallet, Frédéric Duclos, Michele Zeverino, Raphaël Moeckli, Etienne Pruvot, Jean Bourhis
Stereotactic body radiotherapy (SBRT) is an emerging non-invasive treatment in the management of ventricular tachycardia (VT). We report here an intensive care patient suffering from an electrical storm due to incessant VT, unresponsive to catheter ablation and anti-arrhythmic drugs, showing an immediate and durable response to electrophysiology-guided cardiac SBRT.
May 9, 2018: Radiotherapy and Oncology: Journal of the European Society for Therapeutic Radiology and Oncology
https://www.readbyqxmd.com/read/29716710/catheter-ablation-for-electrical-storm-in-brugada-syndrome-results-of-substrate-based-ablation
#7
Abhijeet Shelke, Ajit Tachil, Daljeet Saggu, Masilamani Lawrance Jesuraj, Sachin Yalagudri, Calambur Narasimhan
BACKGROUND: Brugada syndrome (BrS) is known to cause malignant ventricular arrhythmia (VA) and sudden cardiac death (SCD). Patients with implantable cardioverter defibrillator (ICD) may experience recurrent shocks from ICD. Recent reports indicate that radiofrequency ablation (RFA) in BrS is feasible, and effective. Catheter ablation of premature ventricular complexes (PVCs) triggering VA and substrate modification of right ventricular outflow tract (RVOT) has been described. METHODS AND RESULTS: Five patients (4 males, age-23 to 32 years) with BrS and electrical storm (ES) despite being on isoprenaline infusion and cilostazol (phosphodiestrase-3 inhibitor) underwent 3 dimensional electroanatomic mapping and RFA...
March 2018: Indian Heart Journal
https://www.readbyqxmd.com/read/29716709/management-of-electrical-storm-of-unstable-ventricular-tachycardia-in-post-myocardial-infarction-patients-a-single-centre-experience
#8
B Hygriv Rao, Mohammed Sadiq Azam, Geetesh Manik
OBJECTIVE: This is a case series of consecutive patients with past myocardial infarction presenting with Electrical Storm (ES) of unstable ventricular tachycardia (VT) treated by a protocol directed algorithm. METHODS: Management protocol involved treatment of reversible causes, ventilatory & hemodynamic support, administration of antiarrhythmic drugs (AAD) & maximally tolerated doses of beta-blockers, stellate ganglionectomy and Radiofrequency ablation (RFA) guided by Electro Anatomic Mapping (EAM)...
March 2018: Indian Heart Journal
https://www.readbyqxmd.com/read/29699617/why-is-propranolol-better-than-metoprolol-in-acute-treatment-of-electrical-storm
#9
EDITORIAL
Peng-Sheng Chen, Anisiia Doytchinova
No abstract text is available yet for this article.
May 1, 2018: Journal of the American College of Cardiology
https://www.readbyqxmd.com/read/29699616/propranolol-versus-metoprolol-for-treatment-of-electrical-storm-in-patients-with-implantable-cardioverter-defibrillator
#10
Sofia Chatzidou, Christos Kontogiannis, Diamantis I Tsilimigras, Georgios Georgiopoulos, Marinos Kosmopoulos, Elektra Papadopoulou, Georgios Vasilopoulos, Stylianos Rokas
BACKGROUND: Electrical storm (ES), characterized by unrelenting recurrences of ventricular arrhythmias, is observed in approximately 30% of patients with implantable cardioverter-defibrillators (ICDs) and is associated with high mortality rates. OBJECTIVES: Sympathetic blockade with β-blockers, usually in combination with intravenous (IV) amiodarone, have proved highly effective in the suppression of ES. In this study, we compared the efficacy of a nonselective β-blocker (propranolol) versus a β1 -selective blocker (metoprolol) in the management of ES...
May 1, 2018: Journal of the American College of Cardiology
https://www.readbyqxmd.com/read/29696170/international-electrical-storm-registry-electra-background-rationale-study-design-and-expected-results
#11
Federico Guerra, Michele Accogli, Paolo Bonelli, Corrado Carbucicchio, Valentina Catto, Laura Cipolletta, Gaetano Maria De Ferrari, Gabriele Dell'Era, Veronica Dusi, Oscar Fabregat-Andrés, Marco Flori, Eraldo Occhetta, Pietro Palmisano, Francesca Patani, Alessandro Proclemer, Alessandro Capucci
Electrical storm (ES) is defined as three or more episodes of ventricular fibrillation (VF) or ventricular tachycardia (VT) within 24 h and is associated with an increased cardiac and all-cause mortality. ES is a full arrhythmic emergency, its prevalence steadily increasing along with the number of implantable cardioverter-defibrillator implanted every year in developed countries. Nowadays, little evidence exists regarding clinical predictors of ES and their potential association on mortality and heart failure (HF), nor optimal pharmacological and non-pharmacological treatment has ever been codified...
September 2017: Contemporary Clinical Trials Communications
https://www.readbyqxmd.com/read/29680972/prophylactic-catheter-ablation-of-ventricular-tachycardia-in-ischemic-cardiomyopathy-a-systematic-review-and-meta-analysis-of-randomized-controlled-trials
#12
REVIEW
Varunsiri Atti, Venkat Vuddanda, Mohit K Turagam, Praveen Vemula, Zubair Shah, Himakar Nagam, Srikanth Yandrapalli, Mohammad-Ali Jazayeri, Scott Koerber, Juan Viles Gonzalez, Andrea Natale, Luigi Di Biase, Dhanunjaya R Lakkireddy
BACKGROUND: Catheter ablation is proven to be an effective strategy for drug refractory ventricular tachycardia (VT) in ischemic cardiomyopathy. However, the appropriate timing of VT ablation and identifying the group of patients that may receive the greatest benefit remains uncertain. There is limited data on the effect on prophylactic catheter ablation (PCA) in the prevention of implantable cardioverter defibrillator (ICD) therapy, electrical storm, and mortality. METHODS: We performed a comprehensive literature search through November 1, 2017, for all eligible studies comparing PCA + ICD versus ICD only in eligible patients with ischemic cardiomyopathy...
April 21, 2018: Journal of Interventional Cardiac Electrophysiology: An International Journal of Arrhythmias and Pacing
https://www.readbyqxmd.com/read/29577339/frailty-as-a-predictor-of-negative-outcomes-after-cardiac-resynchronization-therapy
#13
Agnieszka Mlynarska, Rafal Mlynarski, Krzysztof S Golba
AIM: To assess the prevalence of frailty among patients who had cardiac resynchronization as well as the influence of frailty on the main endpoints during follow-up. METHODS: The study included 156 pts. (aged 74.33 ± 6.75; 27W) with diagnosed heart failure that were hospitalized for the implantation of a cardiac resynchronization device. The Tilburg Frailty Indicator questionnaire was used to evaluate frailty syndrome. RESULTS: Frailty syndrome was diagnosed in 75...
March 25, 2018: Pacing and Clinical Electrophysiology: PACE
https://www.readbyqxmd.com/read/29565842/initial-public-health-laboratory-response-after-hurricane-maria-puerto-rico-2017
#14
Jeniffer Concepción-Acevedo, Anita Patel, Carolina Luna-Pinto, Rafael González Peña, Rosa Ivette Cuevas Ruiz, Héctor Rivera Arbolay, Mayra Toro, Carmen Deseda, Victor R De Jesus, Efrain Ribot, Jennifer-Quiñones Gonzalez, Gouthami Rao, Alfonsina De Leon Salazar, Marisela Ansbro, Brunilís B White, Margaret C Hardy, Joaudimir Castro Georgi, Rita Stinnett, Alexandra M Mercante, David Lowe, Haley Martin, Angela Starks, Beverly Metchock, Stephanie Johnston, Tracy Dalton, Olga Joglar, Cortney Stafford, Monica Youngblood, Katherine Klein, Stephen Lindstrom, LaShondra Berman, Renee Galloway, Ilana J Schafer, Henry Walke, Robyn Stoddard, Robin Connelly, Elaine McCaffery, Marie-Claire Rowlinson, Stephen Soroka, Darin T Tranquillo, Anne Gaynor, Chris Mangal, Kelly Wroblewski, Atis Muehlenbachs, Reynolds M Salerno, Matthew Lozier, Brittany Sunshine, Craig Shapiro, Dale Rose, Renee Funk, Satish K Pillai, Eduardo O'Neill
Hurricane Maria made landfall in Puerto Rico on September 20, 2017, causing major damage to infrastructure and severely limiting access to potable water, electric power, transportation, and communications. Public services that were affected included operations of the Puerto Rico Department of Health (PRDOH), which provides critical laboratory testing and surveillance for diseases and other health hazards. PRDOH requested assistance from CDC for the restoration of laboratory infrastructure, surveillance capacity, and diagnostic testing for selected priority diseases, including influenza, rabies, leptospirosis, salmonellosis, and tuberculosis...
March 23, 2018: MMWR. Morbidity and Mortality Weekly Report
https://www.readbyqxmd.com/read/29548904/electrical-storm-after-coronary-artery-bypass-grafting-diagnosing-and-treating-the-trigger
#15
Morgan L Montgomery, Mehdi Oloomi, Ahmed El-Eshmawi, David H Adams
No abstract text is available yet for this article.
February 3, 2018: Journal of Cardiothoracic and Vascular Anesthesia
https://www.readbyqxmd.com/read/29525385/a-successful-catheter-ablation-of-a-ventricular-fibrillation
#16
Serdar Demir, Abdulkadir Uslu, Ahmet Guner, Sabahattin Gunduz, Muzaffer Kahyaoglu, Ayhan Kup, Mehmet Celik, Ozge Akgun, Munevver Sarı, Taylan Akgun
Malignant ventricular arrhythmias are challenging to manage, requiring a multidisciplinary approach. The mechanism, which triggers ventricular fibrillation (VF) associated with ventricular extrasystoles has not been clarified yet, however, abolishing ventricular extrasystoles may stop ventricular fibrillation in these patients. By this case presentation, we aimed to present a successful treatment of an electrical storm (ES), which developed after an acute myocardial infarction, by catheter ablation.
February 24, 2018: Journal of Electrocardiology
https://www.readbyqxmd.com/read/29518264/external-implantable-defibrillator-as-a-bridge-to-reimplant-after-explant-for-infection-experience-from-two-centers
#17
Gabriele Dell'Era, Matteo Ziacchi, Eleonora Prenna, Igor Diemberger, Marco Varalda, Cristian Martignani, Federico Guerra, Mauro Biffi, Eraldo Occhetta
BACKGROUND: The management of patients explanted for implantable converter defibrillator (ICD) infections may be complex when anti-bradycardia pacing and tachyarrhythmia protection are needed. We aimed to test the efficacy and safety of a conventional ICD externally connected to a transvenous dual-coil lead as bridging therapy before the reimplantation. METHODS AND RESULTS: We enrolled seven patients explanted for ICD infections and needed prolonged antibiotic therapy in two high-volume hospitals in Italy and treated them with a passive-can external ICD for a mean of 13 (4-30) days before reimplant...
March 8, 2018: Pacing and Clinical Electrophysiology: PACE
https://www.readbyqxmd.com/read/29516531/trees-down-hazards-abound-observations-and-lessons-from-hurricane-sandy
#18
Michele Ochsner, Elizabeth G Marshall, Daniel Lefkowitz
BACKGROUND: Given predictions that climate change will lead to an increase in severe storms, it is important to more fully understand the risks experienced by workers charged with the cleanup and removal of storm damaged trees. These hazards have received little attention in the occupational safety and health literature. METHODS: This paper is based on semi-structured interviews with 23 stakeholders involved in the Hurricane Sandy cleanup effort. RESULTS: Interview participants identified at risk sectors, gaps in training and preparedness, and raised particular concerns about storm downed trees, electrical hazards, and fatigue and suggested steps to reduce these hazards...
May 2018: American Journal of Industrial Medicine
https://www.readbyqxmd.com/read/29455831/thoracoscopic-sympathectomy-for-refractory-electrical-storm-after-coronary-artery-bypass-grafting
#19
Brody Wehman, Michael Mazzeffi, Robert Chow, A Claire Watkins, Brittany Aicher, Si Pham, Whitney Burrows, Bradley Taylor
We report a patient with refractory electrical storm after coronary artery bypass grafting who was successfully treated with thoracoscopic sympathectomy. Cardiac arrest with ventricular tachycardia occurred on postoperative day 2, and the patient required emergency support with venoarterial extracorporeal membrane oxygenation. Frequent episodes of ventricular tachycardia prevented cardiac recovery and weaning from mechanical circulatory support. A percutaneous left stellate ganglion block initially demonstrated successful prevention of ventricular tachycardia, and definitive sympathetic denervation was achieved by a left thoracoscopic sympathectomy...
March 2018: Annals of Thoracic Surgery
https://www.readbyqxmd.com/read/29429026/modulation-of-renal-sympathetic-innervation-recent-insights-beyond-blood-pressure-control
#20
REVIEW
Dominik Linz, Mathias Hohl, Adrian D Elliott, Dennis H Lau, Felix Mahfoud, Murray D Esler, Prashanthan Sanders, Michael Böhm
Renal afferent and efferent sympathetic nerves are involved in the regulation of blood pressure and have a pathophysiological role in hypertension. Additionally, several conditions that frequently coexist with hypertension, such as heart failure, obstructive sleep apnea, atrial fibrillation, renal dysfunction, and metabolic syndrome, demonstrate enhanced sympathetic activity. Renal denervation (RDN) is an approach to reduce renal and whole body sympathetic activation. Experimental models indicate that RDN has the potential to lower blood pressure and prevent cardio-renal remodeling in chronic diseases associated with enhanced sympathetic activation...
February 10, 2018: Clinical Autonomic Research: Official Journal of the Clinical Autonomic Research Society
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