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https://www.readbyqxmd.com/read/29305400/effect-of-baseline-antiarrhythmic-drug-on-outcomes-with-ablation-in-ischemic-ventricular-tachycardia-a-vanish-substudy-ventricular-tachycardia-ablation-versus-escalated-antiarrhythmic-drug-therapy-in-ischemic-heart-disease
#1
Ratika Parkash, Isabelle Nault, Lena Rivard, Lorne Gula, Vidal Essebag, Pablo Nery, Stanley Tung, Jean-Marc Raymond, Laurence Sterns, Steve Doucette, George Wells, Anthony S L Tang, William G Stevenson, John L Sapp
BACKGROUND: The VANISH trial (Ventricular Tachycardia Ablation Versus Escalated Antiarrhythmic Drug Therapy in Ischemic Heart Disease) compared the effectiveness of escalated antiarrhythmic drug therapy to catheter ablation in patients with prior myocardial infarction, an implanted defibrillator, and ventricular tachycardia (VT). The effectiveness of these interventions in patients on sotalol versus amiodarone was compared. METHODS AND RESULTS: Analysis was conducted based on whether patients had recurrent VT, despite amiodarone (amio-refractory) or nonamiodarone drugs (sotalol-refractory)...
January 2018: Circulation. Arrhythmia and Electrophysiology
https://www.readbyqxmd.com/read/29276907/-regulatory-adaptive-status-in-determining-the-effectiveness-of-bisoprololum-and-sotalolum-in-patients-with-hypertensive-disease-and-paroxysmal-supraventricular-tachycardia
#2
V G Tregubov, V M Pokrovsky, N M Nazhalkina
AIM: To determine efficacy of bisoprolol and sotalol treatments in patients with paroxysmal supraventricular tachycardia (SVT) and essential hypertension (EH) considering effects of these treatments on the regulatory adaptive status (RAS). MATERIALS AND METHODS: The study included 49 patients with paroxysmal SVT associated with stage II-III EH randomized to two groups of either bisoprolol (6.9±2.2 mg/day, n=25) or sotalol (162.5±46.2 mg/day, n=24) treatment. Lisinopril (14...
2017: Kardiologiia
https://www.readbyqxmd.com/read/29274391/electrophysiological-characteristics-and-pharmacological-sensitivity-of-two-lines-of-human-induced-pluripotent-stem-cell-derived-cardiomyocytes-coming-from-two-different-suppliers
#3
Sonia Goineau, Vincent Castagné
Human induced pluripotent stem cell-derived cardiomyocytes (hiPSC-CMs) are increasingly used as preclinical tool for predicting drug-induced QT prolongation and arrhythmias. This study was conducted to assess the electrophysiological characteristics and the pharmacological sensitivity of two commercialized hiPSC-CMs. The baseline electrophysiological characteristics measured with a multi-electrode array (MEA) technology differ between Cor.4U and iCell2: higher beat rate (+32bpm) and shorter field potential duration (FPD, -201ms) for Cor...
December 20, 2017: Journal of Pharmacological and Toxicological Methods
https://www.readbyqxmd.com/read/29250266/intravenous-sotalol-reintroducing-a-forgotten-agent-to-the-electrophysiology-therapeutic-arsenal
#4
REVIEW
Syeda Atiqa Batul, Rakesh Gopinathannair
Sotalol is a racemic mixture possessing beta-blocker and class III anti arrhythmic properties. Approved by US food and drug administration (FDA) since 2009 based on its bioequivalence with oral sotalol, clinicians are less familiar with the potential uses of the intravenous form despite its re-launch in United States in 2015. Available literature suggests that intravenous sotalol in recommended doses can be safely administered in adult and pediatric population achieving rapid reliable therapeutic plasma concentration and without additional proarrhythmic effects when compared to its oral form as well as other antiarrhythmic medications...
February 2017: Journal of Atrial Fibrillation
https://www.readbyqxmd.com/read/29250225/atrial-fibrillation-in-patients-with-congenital-heart-disease
#5
REVIEW
Tabitha G Moe, Victor A Abrich, Edward K Rhee
Advances in surgical techniques have led to the survival of most patients with congenital heart disease (CHD) up to their adulthood. During their lifetime, many of them develop atrial tachyarrhythmias due to atrial dilatation and scarring from surgical procedures. More complex defects and palliative repairs are linked to a higher incidence and earlier occurrence of arrhythmias. Atrial fibrillation (AF) is common in patients who have atrial septal defects repaired after age 55 and in patients with tetralogy of Fallot repaired after age 45...
June 2017: Journal of Atrial Fibrillation
https://www.readbyqxmd.com/read/29246961/first-line-antiarrhythmic-transplacental-treatment-for-fetal-tachyarrhythmia-a-systematic-review-and-meta-analysis
#6
REVIEW
Tarek Alsaied, Shankar Baskar, Munes Fares, Fares Alahdab, Richard J Czosek, Mohammad Hassan Murad, Larry J Prokop, Allison A Divanovic
BACKGROUND: There is no consensus on the most effective and best tolerated first-line antiarrhythmic treatment for fetal tachyarrhythmia. The purpose of this systematic review and meta-analysis was to compare the efficacy, safety, and fetal-maternal tolerance of first-line monotherapies for fetal supraventricular tachycardia and atrial flutter. METHODS AND RESULTS: A comprehensive search of several databases was conducted through January 2017. Only studies that made a direct comparison between first-line treatments of fetal tachyarrhythmia were included...
December 15, 2017: Journal of the American Heart Association
https://www.readbyqxmd.com/read/29208503/maternal-complications-induced-by-digoxin-treatment-of-fetal-tachycardia-a-retrospective-series-of-18-cases
#7
S Moatassim, S Touleimat, T Hazelzet, M-D Brasseur, A Diguet, I Durand, E Verspyck
OBJECTIVE: To evaluate maternal tolerance to digoxin, used alone or associated to other antiarrhythmic drugs in the management of fetal tachycardia. PATIENTS AND METHODS: This retrospective study was conducted at Rouen University Hospital between January 2009 and July 2016. All women who have received a treatment by either digoxin alone or associated with another antiarrhythmic drug for fetal tachycardia were included in the study. Maternal cardiac and extracardiac adverse effects were reported and comparisons between electrocardiograms before and during treatment with digoxin alone were performed...
December 2, 2017: Journal of Gynecology Obstetrics and Human Reproduction
https://www.readbyqxmd.com/read/29205742/trends-in-outpatient-anti-arrhythmic-prescriptions-for-atrial-fibrillation-and-left-atrial-ablation-in-australia-1997-2016
#8
Ifrah Khan, Hitesh C Patel, Shane Nanayakkara, Hariharan Raju, Aleksandr Voskoboinik, Justin A Mariani
BACKGROUND: An important aspect of atrial fibrillation (AF) management is the decision whether to adopt a rate or rhythm control strategy. Options for the latter include oral anti-arrhythmic drugs (AADs) or catheter ablation. AIM: We sought to describe the trends in rhythm control for AF in Australia between 1997 and 2016. METHODS: We conducted a retrospective study using prospectively collected data between 1997 - 2016 from the Pharmaceutical Benefit Scheme and Medicare Benefit Schedule websites, which respectively contain information pertaining to public AAD prescriptions and rebatable AF ablation procedures performed in the Australia...
December 5, 2017: Internal Medicine Journal
https://www.readbyqxmd.com/read/29171211/a-prospective-survey-of-atrial-fibrillation-management-for-real-world-guideline-adherence-comparison-study-of-drugs-for-symptom-control-and-complication-prevention-of-atrial-fibrillation-code-af-registry
#9
Hyeongsoo Kim, Tae Hoon Kim, Myung Jin Cha, Jung Myung Lee, Junbeom Park, Jin Kyu Park, Ki Woon Kang, Jaemin Shim, Jae Sun Uhm, Jun Kim, Hyung Wook Park, Eue Keun Choi, Jin Bae Kim, Changsoo Kim, Young Soo Lee, Boyoung Joung
BACKGROUND AND OBJECTIVES: The aging population is rapidly increasing, and atrial fibrillation (AF) is becoming a significant public health burden in Asia, including Korea. This study evaluated current treatment patterns and guideline adherence of AF treatment. METHODS: In a prospective observational registry (COmparison study of Drugs for symptom control and complication prEvention of Atrial Fibrillation [CODE-AF] registry), 6,275 patients with nonvalvular AF were consecutively enrolled between June 2016 and April 2017 from 10 tertiary hospitals in Korea...
October 17, 2017: Korean Circulation Journal
https://www.readbyqxmd.com/read/29150808/monitoring-enzymatic-degradation-of-emerging-contaminants-using-a-chip-based-robotic-nano-esi-ms-tool
#10
Lara F Stadlmair, Thomas Letzel, Johanna Graßmann
Up to now, knowledge of enzymes capable of degrading various contaminants of emerging concern (CEC) is limited, which is especially due to the lack of rapid screening methods. Thus, a miniaturized high-throughput setup using a chip-based robotic nanoelectrospray ionization system coupled to mass spectrometry has been developed to rapidly screen enzymatic reactions with environmentally relevant CECs. Three laccases, two tyrosinases, and two peroxidases were studied for their ability to transform ten pharmaceuticals and benzotriazole...
November 17, 2017: Analytical and Bioanalytical Chemistry
https://www.readbyqxmd.com/read/29128797/sotalol-enhances-the-anticonvulsant-action-of-valproate-and-diphenylhydantoin-in-the-mouse-maximal-electroshock-model
#11
Monika Banach, Monika Popławska, Kinga K Borowicz-Reutt
BACKGROUND: Sotalol as a drug blocking β-receptors and potassium KCNH2 channels may interact with different substances that affect seizures. Herein, we present interactions between sotalol and four conventional antiepileptic drugs: carbamazepine, valproate, phenytoin and phenobarbital. METHODS: Effects of sotalol and antiepileptics alone on seizures were determined in the electroconvulsive threshold test, while interactions between sotalol and antiepileptic drugs were estimated in the maximal electroshock test in mice...
May 11, 2017: Pharmacological Reports: PR
https://www.readbyqxmd.com/read/29081622/the-basis-for-low-affinity-herg-potassium-channel-block-by-sotalol
#12
Yi Hong Zhang, Christopher E Dempsey, Jules C Hancox
No abstract text is available yet for this article.
July 2017: Journal of Pharmacology & Pharmacotherapeutics
https://www.readbyqxmd.com/read/29042382/drugs-and-life-threatening-ventricular-arrhythmia-risk-results-from-the-dare-study-cohort
#13
Abigail L Coughtrie, Elijah R Behr, Deborah Layton, Vanessa Marshall, A John Camm, Saad A W Shakir
OBJECTIVES: To establish a unique sample of proarrhythmia cases, determine the characteristics of cases and estimate the contribution of individual drugs to the incidence of proarrhythmia within these cases. SETTING: Suspected proarrhythmia cases were referred by cardiologists across England between 2003 and 2011. Information on demography, symptoms, prior medical and drug histories and data from hospital notes were collected. PARTICIPANTS: Two expert cardiologists reviewed data for 293 referred cases: 130 were included...
October 16, 2017: BMJ Open
https://www.readbyqxmd.com/read/29023952/pharmacokinetics-and-electrophysiological-effects-of-sotalol-hydrochloride-in-horses
#14
B Broux, D De Clercq, A Decloedt, L Vera, M Devreese, R Gehring, S Croubels, G van Loon
BACKGROUND: Arrhythmias in horses may require long term anti-arrhythmic therapy. Unfortunately, oral anti-arrhythmic drugs for use in horses are currently scarce. In human patients and small animals, sotalol, a β-blocker with class III anti-arrhythmic properties, is often used for long-term treatment. OBJECTIVES: To determine the pharmacokinetics of sotalol at multiple oral dosages in unfasted horses, as well as the effects on electro- and echocardiographic measurements, right atrial and ventricular monophasic action potential (MAP) and effective refractory period (ERP)...
October 10, 2017: Equine Veterinary Journal
https://www.readbyqxmd.com/read/28953472/laboratory-and-full-scale-studies-on-the-removal-of-pharmaceuticals-in-an-aerated-constructed-wetland-effects-of-aeration-and-hydraulic-retention-time-on-the-removal-efficiency-and-assessment-of-the-aquatic-risk
#15
Hannele Auvinen, Wilhelm Gebhardt, Volker Linnemann, Gijs Du Laing, Diederik P L Rousseau
Pharmaceutical residues in wastewater pose a challenge to wastewater treatment technologies. Constructed wetlands (CWs) are common wastewater treatment systems in rural areas and they discharge often in small water courses in which the ecology can be adversely affected by the discharged pharmaceuticals. Hence, there is a need for studies aiming to improve the removal of pharmaceuticals in CWs. In this study, the performance of a full-scale aerated sub-surface flow hybrid CW treating wastewater from a healthcare facility was studied in terms of common water parameters and pharmaceutical removal...
September 2017: Water Science and Technology: a Journal of the International Association on Water Pollution Research
https://www.readbyqxmd.com/read/28940299/a-history-of-drug-induced-torsades-de-pointes-is-associated-with-t-wave-morphological-abnormalities
#16
Tanveer A Bhuiyan, Claus Graff, Jørgen K Kanters, Jacob Melgaard, Egon Toft, Stefan Kääb, Johannes J Struijk
The hypothesis of the study is that TdP history can be better identified using T-wave morphology compared to QTcF at baseline. ECGs were recorded at baseline and during sotalol challenge in 20 patients with a history of TdP (+TdP) and 16 patients without previous TdP (-TdP). The Fridericia-corrected QT interval (QTcF) and T-wave morphology combination score (MCS) were calculated. At baseline, there was no significant difference in QTcF between the groups (+TdP: QTcF = 446±9 ms; -TdP: QTcF = 431±9 ms, p = 0...
September 22, 2017: Clinical Pharmacology and Therapeutics
https://www.readbyqxmd.com/read/28916640/clinical-profile-and-consequences-of-atrial-fibrillation-in-hypertrophic-cardiomyopathy
#17
Ethan J Rowin, Anais Hausvater, Mark S Link, Patrick Abt, William Gionfriddo, Wendy Wang, Hassan Rastegar, N A Mark Estes, Martin S Maron, Barry J Maron
BACKGROUND: Atrial fibrillation (AF), the most common sustained arrhythmia in hypertrophic cardiomyopathy (HCM), is capable of producing symptoms that impact quality of life and is associated with risk for embolic stroke. However, the influence of AF on clinical course and outcome in HCM remains incompletely resolved. METHODS: Records of 1558 consecutive patients followed at the Tufts Medical Center Hypertrophic Cardiomyopathy Institute for 4.8±3.4 years (from 2004 to 2014) were accessed...
December 19, 2017: Circulation
https://www.readbyqxmd.com/read/28904293/characteristics-of-electromechanical-window-in-anesthetized-rabbit-models-of-short-qt-and-long-qt-syndromes
#18
Vudhiporn Limprasutr, Nakkawee Saengklub, Pradtana Meedech, Anusak Kijtawornrat, Robert L Hamlin
The current regulatory guidelines recommend the use of QT interval to assess the risk of arrhythmogenic potential of new chemical entities. Recently, the electromechanical window (EMW), the difference in duration between electrical and mechanical systole, has been proposed as markers for drug-induced torsades de pointes (TdP); however, data of EMW in short QT model are not available. This study aimed to characterize the EMW as a marker for drug-induced ventricular arrhythmias in anesthetized rabbit model of long QT syndrome type 2 (LQT2) and short QT syndrome (SQTS) infused with reference compounds known to lengthen or shorten QT intervals...
2017: Journal of Toxicological Sciences
https://www.readbyqxmd.com/read/28900864/ventricular-tachycardia-with-icd-shocks-when-to-medicate-and-when-to-ablate
#19
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/28868038/quantitative-comparison-of-effects-of-dofetilide-sotalol-quinidine-and-verapamil-between-human-ex-vivo-trabeculae-and-in-silico-ventricular-models-incorporating-inter-individual-action-potential-variability
#20
Oliver J Britton, Najah Abi-Gerges, Guy Page, Andre Ghetti, Paul E Miller, Blanca Rodriguez
Background:In silico modeling could soon become a mainstream method of pro-arrhythmic risk assessment in drug development. However, a lack of human-specific data and appropriate modeling techniques has previously prevented quantitative comparison of drug effects between in silico models and recordings from human cardiac preparations. Here, we directly compare changes in repolarization biomarkers caused by dofetilide, dl-sotalol, quinidine, and verapamil, between in silico populations of human ventricular cell models and ex vivo human ventricular trabeculae...
2017: Frontiers in Physiology
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