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ventricular tachycardia management

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https://www.readbyqxmd.com/read/28534205/outflow-tract-ventricular-arrhythmias-electrocardiographic-features-in-relation-to-mapping-and-ablation
#1
REVIEW
Deepak Padmanabhan, Alan Sugrue, Prakriti Gaba, Samuel J Asirvatham
Ventricular arrhythmia arising from the outflow tracts can manifest itself as frequent premature ventricular complexes (PVCs), salvos of ventricular tachycardia (VT), and/or sustained VT. It is amenable to management with medication and catheter ablation without need for an intracardiac defibrillator. The electrocardiogram (ECG) is a crucial tool in the management of these patients as it is can help localize the site of origin, thereby helping guide the electrophysiologist. An appreciation of the unique anatomy of the outflow tracts as well as their relationships with the surrounding structures is essential in interpreting the ECG...
May 22, 2017: Herzschrittmachertherapie & Elektrophysiologie
https://www.readbyqxmd.com/read/28528323/c-graph-a-validated-scoring-system-for-early-stratification-of-neurologic-outcome-after-out-of-hospital-cardiac-arrest-treated-with-targeted-temperature-management
#2
Erich L Kiehl, Alex M Parker, Ralph M Matar, Matthew F Gottbrecht, Michelle C Johansen, Mark P Adams, Lori A Griffiths, Steven P Dunn, Katherine L Bidwell, Venu Menon, Kyle B Enfield, Lawrence W Gimple
BACKGROUND: Out-of-hospital cardiac arrest (OHCA) results in significant morbidity and mortality, primarily from neurologic injury. Predicting neurologic outcome early post-OHCA remains difficult in patients receiving targeted temperature management. METHODS AND RESULTS: Retrospective analysis was performed on consecutive OHCA patients receiving targeted temperature management (32-34°C) for 24 hours at a tertiary-care center from 2008 to 2012 (development cohort, n=122)...
May 20, 2017: Journal of the American Heart Association
https://www.readbyqxmd.com/read/28506917/atrial-antitachycardia-pacing-and-atrial-remodeling-a-substudy-of-the-international-randomized-minerva-trial
#3
Giuseppe Boriani, Raymond Tukkie, Mauro Biffi, Lluis Mont, Renato Ricci, Helmut Pürerfellner, Giovanni Luca Botto, Antonis S Manolis, Maurizio Landolina, Michele Gulizia, J Harrison Hudnall, Lorenza Mangoni, Andrea Grammatico, Luigi Padeletti
BACKGROUND: Atrial tachycardia (AT) and atrial fibrillation (AF) are common in pacemaker patients and are associated with bad prognosis. OBJECTIVE: To evaluate atrial antitachycardia pacing impact on AT/AF induced atrial remodeling, measured by early recurrence of AT/AF (ERAF) and by change in left atrium diameter (LAD). To evaluate impact of AT/AF duration on ERAF incidence. METHODS: Pacemaker patients were randomized to dual-chamber pacing (Control DDDR-385 patients), managed ventricular pacing (MVP-398 patients) or atrial antitachycardia pacing plus MVP (DDDRP+MVP-383 patients)...
May 12, 2017: Heart Rhythm: the Official Journal of the Heart Rhythm Society
https://www.readbyqxmd.com/read/28491768/successful-prenatal-management-of-ventricular-tachycardia-and-second-degree-atrioventricular-block-in-fetal-long-qt-syndrome
#4
Akira Miyake, Heima Sakaguchi, Aya Miyazaki, Takekazu Miyoshi, Takeshi Aiba, Isao Shiraishi
No abstract text is available yet for this article.
January 2017: HeartRhythm Case Reports
https://www.readbyqxmd.com/read/28490655/practice-guideline-summary-reducing-brain-injury-following-cardiopulmonary-resuscitation-report-of-the-guideline-development-dissemination-and-implementation-subcommittee-of-the-american-academy-of-neurology
#5
Romergryko G Geocadin, Eelco Wijdicks, Melissa J Armstrong, Maxwell Damian, Stephan A Mayer, Joseph P Ornato, Alejandro Rabinstein, José I Suarez, Michel T Torbey, Richard M Dubinsky, Jason Lazarou
OBJECTIVE: To assess the evidence and make evidence-based recommendations for acute interventions to reduce brain injury in adult patients who are comatose after successful cardiopulmonary resuscitation. METHODS: Published literature from 1966 to August 29, 2016, was reviewed with evidence-based classification of relevant articles. RESULTS AND RECOMMENDATIONS: For patients who are comatose in whom the initial cardiac rhythm is either pulseless ventricular tachycardia (VT) or ventricular fibrillation (VF) after out-of-hospital cardiac arrest (OHCA), therapeutic hypothermia (TH; 32-34°C for 24 hours) is highly likely to be effective in improving functional neurologic outcome and survival compared with non-TH and should be offered (Level A)...
May 10, 2017: Neurology
https://www.readbyqxmd.com/read/28489458/toxicokinetics-of-ibogaine-and-noribogaine-in-a-patient-with-prolonged-multiple-cardiac-arrhythmias-after-ingestion-of-internet-purchased-ibogaine
#6
Marieke Henstra, Liza Wong, Abdel Chahbouni, Noortje Swart, Cor Allaart, Ferdi Sombogaard
BACKGROUND: Ibogaine is an agent that has been evaluated as an unapproved anti-addictive agent for the management of drug dependence. Sudden cardiac death has been described to occur secondary to its use. We describe the clinical effects and toxicokinetics of ibogaine and noribogaine in a single patient. For this purpose, we developed a LC-MS/MS-method to measure ibogaine and noribogaine plasma-concentrations. We used two compartments with first order absorption. CASE DETAILS: The maximum concentration of ibogaine was 1...
July 2017: Clinical Toxicology
https://www.readbyqxmd.com/read/28487348/conquest-of-ventricular-tachycardia-insights-into-mechanisms-innovations-in-management-contribution-of-mark-e-josephson-md-to-clinical-electrophysiology
#7
REVIEW
Mohammad Shenasa, John M Miller, David J Callans, Jesus M Almendral, Francis E Marchlinski, Alfred E Buxton
No abstract text is available yet for this article.
May 2017: Circulation. Arrhythmia and Electrophysiology
https://www.readbyqxmd.com/read/28482930/fatal-monomorphic-ventricular-tachycardia-in-a-semi-urban-setting-in-cameroon-a-case-report
#8
Clovis Nkoke, Engelbert Bain Luchuo, Laetitia Dikoume
BACKGROUND: Ventricular tachycardia is a life threatening cardiac arrhythmia. It needs management with defibrillation, without which, immediate death may occur. CASE PRESENTATION: A 66 year old black African patient with a 2 year history of hypertension was admitted to the emergency department of the Buea Regional hospital, a semi-urban setting in Cameroon, after presenting with syncope while in church. The wife described a similar episode 2 weeks prior without any further evaluation...
May 8, 2017: BMC Research Notes
https://www.readbyqxmd.com/read/28471068/stellate-ganglion-blockade-and-bilateral-cardiac-sympathetic-denervation-in-patients-with-life-threatening-ventricular-arrhythmias
#9
Ricardo Cardona-Guarache, Santosh K Padala, Luis Velazco-Davila, Anthony Cassano, Antonio Abbate, Kenneth A Ellenbogen, Jayanthi Koneru
Autonomic modulation is being increasingly employed as a strategy to treat ventricular arrhythmias refractory to beta-blockers, antiarrhythmic drugs and catheter-based ablation procedures. We report 6 patients with refractory ventricular tachycardia (VT) or ventricular fibrillation (VF) treated with stellate ganglion blockade (SGB) and/or bilateral cardiac sympathetic denervation (CSD). Our case series emphasizes the concept that the cardiac sympathetic nerves are important targets in the management of ventricular arrhythmias...
May 4, 2017: Journal of Cardiovascular Electrophysiology
https://www.readbyqxmd.com/read/28469493/beyond-the-electrocardiogram-mutations-in-cardiac-ion-channel-genes-underlie-nonarrhythmic-phenotypes
#10
REVIEW
Thomas M Roston, Taylor Cunningham, Anna Lehman, Zachary W Laksman, Andrew D Krahn, Shubhayan Sanatani
Cardiac ion channelopathies are an important cause of sudden death in the young and include long QT syndrome, Brugada syndrome, catecholaminergic polymorphic ventricular tachycardia, idiopathic ventricular fibrillation, and short QT syndrome. Genes that encode ion channels have been implicated in all of these conditions, leading to the widespread implementation of genetic testing for suspected channelopathies. Over the past half-century, researchers have also identified systemic pathologies that extend beyond the arrhythmic phenotype in patients with ion channel gene mutations, including deafness, epilepsy, cardiomyopathy, periodic paralysis, and congenital heart disease...
2017: Clinical Medicine Insights. Cardiology
https://www.readbyqxmd.com/read/28460772/profiling-cardiac-arrhythmia-and-heart-failure-patients-in-india-the-pan-arrhythmia-and-heart-failure-observational-study
#11
Amit Vora, Ajay Naik, Yash Lokhandwala, Arun Chopra, Jagmohan Varma, G S Wander, Aparna Jaswal, V Srikanthan, Balbir Singh, Dhiman Kahali, Anoop Gupta, R R Mantri, Anil Mishra, Ulhas Pandurangi, Debashis Ghosh, Jitendra Singh Makkar, Sujaayaa Sahu, Rajesh Radhakrishnan
BACKGROUND: The PANARrhythMia and Heart Failure Registry (PANARM HF) characterized demographic, clinical and interventional therapy indication profiles of cardiac arrhythmia (CA) and heart failure (HF) patients in India. METHODS: Consulting Physicians (CP) who medically manage CA and HF patients enrolled patients with one or more of the following: syncope, pre-syncope, dyspnea, palpitation, fatigue and LV dysfunction. The CPs were trained by interventional cardiologists (IC) to identify CA/HF patients indicated for implantable device/radiofrequency ablation (RFA)...
March 2017: Indian Heart Journal
https://www.readbyqxmd.com/read/28458554/patient-characteristics-associated-with-false-arrhythmia-alarms-in-intensive-care
#12
Patricia R Harris, Jessica K Zègre-Hemsey, Daniel Schindler, Yong Bai, Michele M Pelter, Xiao Hu
INTRODUCTION: A high rate of false arrhythmia alarms in the intensive care unit (ICU) leads to alarm fatigue, the condition of desensitization and potentially inappropriate silencing of alarms due to frequent invalid and nonactionable alarms, often referred to as false alarms. OBJECTIVE: The aim of this study was to identify patient characteristics, such as gender, age, body mass index, and diagnosis associated with frequent false arrhythmia alarms in the ICU. METHODS: This descriptive, observational study prospectively enrolled patients who were consecutively admitted to one of five adult ICUs (77 beds) at an urban medical center over a period of 31 days in 2013...
2017: Therapeutics and Clinical Risk Management
https://www.readbyqxmd.com/read/28456577/evaluation-of-processed-borax-as-antidote-for-aconite-poisoning
#13
Prasanta Kumar Sarkar, Pradeep K Prajapati, Vinay J Shukla, Basavaiah Ravishankar
ETHNOPHARMACOLOGICAL RELEVANCE: Aconite root is very poisonous; causes cardiac arrhythmias, ventricular fibrillation and ventricular tachycardia. There is no specific antidote for aconite poisoning. In Ayurveda, dehydrated borax is mentioned for management of aconite poisoning. AIM OF THE STUDY: The investigation evaluated antidotal effect of processed borax against acute and sub-acute toxicity, cardiac toxicity and neuro-muscular toxicity caused by raw aconite...
April 26, 2017: Journal of Ethnopharmacology
https://www.readbyqxmd.com/read/28429542/study-of-the-wearable-cardioverter-defibrillator-in-advanced-heart-failure-patients-swift
#14
Alon Barsheshet, Valentina Kutyifa, Theodora Vamvouris, Arthur J Moss, Yitschak Biton, Leway Chen, Eugene Storozynsky, Chingping Wan, Steven J Szymkiewicz, Ilan Goldenberg
INTRODUCTION: The wearable cardioverter defibrillator (WCD) may allow stabilization until reassessment for an implantable cardioverter defibrillator (ICD) among high-risk HF patients. However, there are limited data on the WCD benefit in the acute decompensated HF setting. METHODS AND RESULTS: The Study of the Wearable Cardioverter Defibrillator in Advanced Heart-Failure Patients (SWIFT) was a prospective clinical trial carried out at two medical centers. Patients hospitalized with advanced HF symptoms and reduced left ventricular ejection function (LVEF) were enrolled and prescribed a WCD prior to discharge for a total of 3 months...
April 21, 2017: Journal of Cardiovascular Electrophysiology
https://www.readbyqxmd.com/read/28429512/tailored-approach-for-management-of-ventricular-tachycardia-in-cardiac-sarcoidosis
#15
Sachin Yalagudri, Ngwe Zin Thu, Soumen Devidutta, Daljeet Saggu, Ajit Thachil, Sridevi Chennapragada, Calambur Narasimhan
INTRODUCTION: Treating ventricular tachycardia (VT) in patients with cardiac sarcoidosis (CS) is challenging as patients present in different phase of the disease (inflammatory, scar or sometimes both). A customized approach to treatment is required for better outcomes. We describe our experience in the management of VT in CS based on the phase of the disease. METHODS AND RESULTS: Patients were considered to have myocardial inflammation if there was an increased myocardial (18) Fluoro Deoxy Glucose (FDG) uptake in PET-CT scan of the chest (n=14)...
April 21, 2017: Journal of Cardiovascular Electrophysiology
https://www.readbyqxmd.com/read/28421842/the-management-of-ventricular-dysrhythmia-in-aconite-poisoning
#16
REVIEW
James M Coulson, Thomas M Caparrotta, John P Thompson
INTRODUCTION: Aconite poisoning is relatively rare but is frequently complicated by ventricular dysrhythmias, which may be fatal. Molecular basis of aconite alkaloid ventricular arrhythmogenicity: Aconite exerts its toxic effects due to the presence of an admixture of alkaloids present in all parts of the plant. The major target of these aconite alkaloids is the fast voltage-gates sodium channel, where they cause persistent activation. This blockade of the channel in the activated state promotes automaticity within the ventricular myocardium and the generation of ventricular arrhythmias...
June 2017: Clinical Toxicology
https://www.readbyqxmd.com/read/28410590/early-predictors-of-poor-outcome-after-out-of-hospital-cardiac-arrest
#17
Louise Martinell, Niklas Nielsen, Johan Herlitz, Thomas Karlsson, Janneke Horn, Matt P Wise, Johan Undén, Christian Rylander
BACKGROUND: Early identification of predictors for a poor long-term outcome in patients who survive the initial phase of out-of-hospital cardiac arrest (OHCA) may facilitate future clinical research, the process of care and information provided to relatives. The aim of this study was to determine the association between variables available from the patient's history and status at intensive care admission with outcome in unconscious survivors of OHCA. METHODS: Using the cohort of the Target Temperature Management trial, we performed a post hoc analysis of 933 unconscious patients with OHCA of presumed cardiac cause who had a complete 6-month follow-up...
April 13, 2017: Critical Care: the Official Journal of the Critical Care Forum
https://www.readbyqxmd.com/read/28395022/optogenetic-manipulation-of-anatomical-re-entry-by-light-guided-generation-of-a-reversible-local-conduction-block
#18
Masaya Watanabe, Iolanda Feola, Rupamanjari Majumder, Wanchana Jangsangthong, Alexander S Teplenin, Dirk L Ypey, Martin J Schalij, Katja Zeppenfeld, Antoine A F de Vries, Daniël A Pijnappels
Aims: Anatomical re-entry is an important mechanism of ventricular tachycardia, characterized by circular electrical propagation in a fixed pathway. It's current investigative and therapeutic approaches are non-biological, rather unspecific (drugs), traumatizing (electrical shocks), or irreversible (ablation). Optogenetics is a new biological technique that allows reversible modulation of electrical function with unmatched spatiotemporal precision using light-gated ion channels. We therefore investigated optogenetic manipulation of anatomical re-entry in ventricular cardiac tissue...
March 1, 2017: Cardiovascular Research
https://www.readbyqxmd.com/read/28385672/characterization-of-health-care-utilization-in-patients-receiving-implantable-cardioverter-defibrillator-therapies-an-analysis-of-the-managed-ventricular-pacing-trial
#19
John Rickard, David Whellen, Lou Sherfesee, Brett J Peterson, Tara Nahey, Anthony S Tang, Kenneth A Ellenbogen, Alan Cheng
BACKGROUND: Implantable cardioverter-defibrillators (ICDs) are effective in terminating lethal arrhythmias, but little is known about the degree of health care utilization (HCU) after ICD therapies. OBJECTIVE: Using data from the managed ventricular pacing trial, we sought to identify the incidence and types of HCU in ICD recipients after receiving ICD therapy (shocks or antitachycardia pacing [ATP]). METHODS: We analyzed HCU events (ventricular tachyarrhythmia [VTA]-related, heart failure-related, ICD implant procedure-related, ICD system-related, or other) and their association with ICD therapies (shocked ventricular tachycardia episode, ATP-terminated ventricular tachycardia episode, and inappropriately shocked episode)...
April 4, 2017: Heart Rhythm: the Official Journal of the Heart Rhythm Society
https://www.readbyqxmd.com/read/28373784/left-ventricular-noncompaction-a-rare-form-of-cardiomyopathy-revelation-modes-and-predictors-of-mortality-in-adults-through-23-cases
#20
Iliyasse Asfalou, Sanae Boulaamayl, Maha Raissouni, Najat Mouine, Mohamed Sabry, Jamal Kheyi, Nawal Doghmi, Aatif Benyass
OBJECTIVES: To describe modes of clinical presentation and echocardiographic, angiographic, and rhythmic features, and prognostic characteristics of left ventricular noncompaction cardiomyopathy (LVNC) in North African adults, through one of the first series in Morocco. BACKGROUND: LVNC is a rare congenital disorder, described for the first time by Engberding in 1984. The suspected diagnosis in thromboembolic, hemodynamic, or rhythm events requires both echocardiography and cardiovascular magnetic resonance (CMR)...
April 2017: Journal of the Saudi Heart Association
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