Results 211 to 220 of about 46,008 (253)

Drug-induced Prolonged Repolarisation (Acquired Long QT Syndrome) Arrhythmias

Heart Lung <html_ent glyph="@amp;" ascii="&amp;"/> Circulation, 2003
Long QT Syndrome is a genetically determined disease of protein structures in the heart called ionic channels that control the flow of ions such as sodium, potassium and calcium, which produce the electrical activity of heart, depolarisation and repolarisation.
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Post-acute management of the acquired long QT syndrome

Postgraduate Medical Journal, 2014
Abstract The mechanisms underlying drug induced QT prolongation and the immediate treatment of torsade de pointes have been extensively studied but the post-acute management of the Acquired Long QT Syndrome (ALQTS) remains to be addressed.
Sérgio, Barra, Sharad, Agarwal, David, Begley, Rui, Providência   +3 more
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[ECG pearl: acquired long QT syndrome].

Orvosi hetilap, 2019
Authors report the case of a patient with drug-induced long QT syndrome. This case highlights the importance of ECG signs of LQTS that may lead to torsade de pointes tachycardia. The patient received the QT prolonging moxifloxacine and the QT remained long even after the offending drug was discontinued. Orv Hetil. 2018; 159(39): 1607-1610.
János, Tomcsányi, Kristóf, Tomcsányi
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Acquired Long QT Syndrome Secondary to Cesium Chloride Supplement

The Journal of Alternative and Complementary Medicine, 2006
The use of complementary medication is on the rise worldwide. More often than not, the treating physicians are unaware of this and also unfamiliar with the potential benefit or toxicity of the agents. Here, we present the case of a 39-year-old woman who presented with new onset of syncope as a result of acquired long QT syndrome secondary to taking a ...
Himeshkumar, Vyas, Katya, Johnson, Robert, Houlihan, Brent A, Bauer, Michael J, Ackerman   +4 more
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Congenital and acquired long QT syndromes.

The Canadian journal of cardiology, 2003
Exploration into the underlying genetic causes of congenital long QT syndrome (LQTS) has opened the door to our understanding of repolarization disorders. Expression of LQTS mutations has led to an improved understanding of the mechanisms of arrhythmogenesis, clinical diagnostic tools and channel specific therapy.
Bruce D, Walker, Andrew D, Krahn, George J, Klein, Allan C, Skanes, Jian, Wang, Robert A, Hegele, Raymond, Yee   +6 more
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Drug Induced QT Prolongation: Lessons from Congenital and Acquired Long QT Syndromes

Current Drug Target -Cardiovascular & Hematological Disorders, 2003
Recent developments regarding the underlying genetic and intracardiac ion channel causes of congenital long QT syndrome have shed new light in the area of repolarization disorders and their resultant cardiac arrhythmias. Drug induced or acquired QT prolongation often represents a latent form of congenital long QT syndrome, though the genetic basis of ...
Bruce D, Walker, Andrew D, Krahn, George J, Klein, Allan C, Skanes, Raymond, Yee   +4 more
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[Acquired long QT syndrome: a dominant problem?].

Annales de cardiologie et d'angeiologie, 2007
QT prolongation is essentially of pharmacologic origin. It is principally linked to a block of the outward potassium current Ikr, with as a consequence a prolongation of the repolarisation causing early after potentials and re-entry. The term "repolarisation reserve" expresses the variable risk of arrhythmia among individuals under the same drug ...
C, Barnay, J, Taieb, R, Morice, B, Jouve, Y, Rahal, T, Benchaa, A, Alfares, C, Lenaers, L, Boulain, E, Pizigo   +9 more
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Molecular basis of congenital and acquired long QT syndromes

Journal of Electrocardiology, 2004
In the United States, over 1,000 individuals will die suddenly each day due to a fatal ventricular arrhythmia. The vast majority of these individuals are middle-aged or elderly with coronary artery disease. Although less than 1% of these sudden cardiac deaths stem from a cardiac channelopathy like congenital long QT syndrome (LQTS), these deaths are ...
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ACQUIRED LONG QT SYNDROME: A UNIQUE CASE OF PAROXETINE-INDUCED STEPWISE RISE AND FALL IN QT INTERVAL VIA A KV1.5 CHANNEL INHIBITION MECHANISM

Chest, 2022
O. Bolaji, Uchenna D UNAMBA, Muhammed Shittu, Faizal Ouedraogo   +3 more
semanticscholar   +1 more source

The Effects of Cycle Ergometer Versus Treadmill Exercise Stress Testing on QTc Interval Prolongation in Patients With Long QT Syndrome: A Systematic Review and Meta-analysis

Clinical Journal of Sports Medicine
Supplemental Digital Content is Available in the Text. Objective: The safest and most effective exercise stress tests (EST) modalities for long QT syndrome (LQTS) are currently unknown.
Audrey Harvey, D. Curnier, Philippe Dodin, Vincent Jacquemet, M. Caru   +4 more
semanticscholar   +1 more source