Results 61 to 70 of about 14,335 (221)

Genome wide analysis of drug-induced torsades de pointes: lack of common variants with large effect sizes.

PLoS ONE, 2013
Marked prolongation of the QT interval on the electrocardiogram associated with the polymorphic ventricular tachycardia Torsades de Pointes is a serious adverse event during treatment with antiarrhythmic drugs and other culprit medications, and is a ...
Elijah R Behr, Marylyn D Ritchie, Toshihiro Tanaka, Stefan Kääb, Dana C Crawford, Paola Nicoletti, Aris Floratos, Moritz F Sinner, Prince J Kannankeril, Arthur A M Wilde, Connie R Bezzina, Eric Schulze-Bahr, Sven Zumhagen, Pascale Guicheney, Nanette H Bishopric, Vanessa Marshall, Saad Shakir, Chrysoula Dalageorgou, Steve Bevan, Yalda Jamshidi, Rachel Bastiaenen, Robert J Myerburg, Jean-Jacques Schott, A John Camm, Gerhard Steinbeck, Kris Norris, Russ B Altman, Nicholas P Tatonetti, Steve Jeffery, Michiaki Kubo, Yusuke Nakamura, Yufeng Shen, Alfred L George, Dan M Roden   +33 more
doaj   +1 more source

Itraconazole-induced Torsade de Pointes in a patient receiving methadone substitution therapy [PDF]

, 2009
Issues. Methadone, a pharmacological agent used to treat heroin dependence is relatively safe, but may cause cardiac arrhythmias in the concurrent presence of other risk factors. Approach and Key Findings.
Narayanan, S., Robson , Noorzurani, Vicknasingam, B.   +2 more
core  

Jervell and Lange‐Nielsen Syndrome Related Clinical Genetics and Experimental Models

Pediatric Discovery, EarlyView.
ABSTRACT Jervell and Lange‐Nielsen syndrome (JLNS) is defined by electrocardiographic QT prolongation and sensorineural hearing loss, caused by homozygous or compound heterozygous variants in KCNQ1 and/or KCNE1. KCNQ1 encodes the alpha subunit Kv7.1 of the ion channels accountable for slow delayed rectifier potassium currents (IKs), whereas KCNE1 ...
Yafei Zhou, Christopher L.‐H. Huang, Ying Yang, Yanmin Zhang   +3 more
wiley   +1 more source

QT Prolongation Complicated with Torsades de Pointes in Prosthetic Mitral Valve Endocarditis: A Case Report

Case Reports in Medicine, 2012
We present the case of a 49-year-old male patient with prosthetic mitral valve endocarditis associated with QT prolongation and torsades de pointes. He was asymptomatic until the end of January 2012, when he was admitted to our hospital emergency unit ...
A. Tounsi, L. Abid, M. Akrout, M. Hentati, S. Kammoun   +4 more
doaj   +1 more source

International Multisite Study of Human-Induced Pluripotent Stem Cell-Derived Cardiomyocytes for Drug Proarrhythmic Potential Assessment

Cell Reports, 2018
Summary: To assess the utility of human-induced pluripotent stem cell-derived cardiomyocytes (hiPSC-CMs) as an in vitro proarrhythmia model, we evaluated the concentration dependence and sources of variability of electrophysiologic responses to 28 drugs ...
Ksenia Blinova, Qianyu Dang, Daniel Millard, Godfrey Smith, Jennifer Pierson, Liang Guo, Mathew Brock, Hua Rong Lu, Udo Kraushaar, Haoyu Zeng, Hong Shi, Xiaoyu Zhang, Kohei Sawada, Tomoharu Osada, Yasunari Kanda, Yuko Sekino, Li Pang, Tromondae K. Feaster, Ralf Kettenhofen, Norman Stockbridge, David G. Strauss, Gary Gintant   +21 more
doaj   +1 more source

Refractory Torsades de Pointes Due to Dofetilide Overdose

Journal of Investigative Medicine High Impact Case Reports, 2021
Dofetilide, a class III antiarrhythmic, is widely used in the treatment of cardiac arrhythmias. Antiarrhythmic drugs can have a long duration of action that prolongs the QT interval.
James Crosby DO, Huzefa Bhopalwala MD, Amrin Kharawala MD, Nakeya Dewaswala MD, Subramanya Shyam Ganti MD, MBBS, Adnan Bhopalwala MD   +5 more
doaj   +1 more source

Methadone, Metoclopramide and Metronidazole Interaction Causing Torsades de Pointes

Clinics and Practice, 2021
There are several classes of medications that can cause prolongation of the corrected QT (QTc) interval and potentially Torsades de Pointes (TdP). Most of these medications are commonly used in the emergency department, and interaction between these ...
Karthik Gnanapandithan, Nishrutha Karthik, Jaime Gerber   +2 more
doaj   +1 more source

Variable electrophysiology before and after block of the two delayed rectifier potassium channels in groups of isolated rabbit ventricular cells

British Journal of Pharmacology, EarlyView.
Abstract Background and Purpose Between‐cell differences in ventricular cardiomyocyte action potential duration (APD) and responses to ion channel block may contribute to pro‐arrhythmic dispersion of myocardial repolarisation. This study quantifies between‐cell physiological and pharmacological variability in the rabbit left ventricle (LV) and uses ...
Rebecca J. Gilchrist, Muhamad Hifzhudin Noor Aziz, Francis L. Burton, Radostin D. Simitev, Rachel C. Myles, Godfrey L. Smith   +5 more
wiley   +1 more source

Changes of QTc interval after opioid switching to oral methadone. [PDF]

, 2013
A consecutive sample of patients who were switched from strong opioids to methadone in a period of 1 year was surveyed. QTc was assessed before switching (T0) and after achieving adequate analgesia and an acceptable level of adverse effects (Ts).
Adile, C., Casuccio, A., Mercadante, S., Prestia, G.   +3 more
core   +1 more source

Cardiotoxicity of BRAF/MEK inhibitors

British Journal of Pharmacology, EarlyView.
Abstract Rapidly accelerated fibrosarcoma type B/B‐Raf proto‐oncogene, serine/threonine kinase (BRAF) and mitogen‐activated protein kinase (MEK) inhibitors have transformed outcomes in cancer therapy, particularly in melanoma. However, cardiovascular toxicities are increasingly recognized in real‐world clinical practice.
Katharina Seuthe, Valerie Lohner, Kevin Terre, Thomas Riffelmacher, Roman Pfister   +4 more
wiley   +1 more source