Results 291 to 300 of about 55,181 (324)
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2023
Abstract Long QT syndrome is an uncommon condition and, if left untreated, can be a life-threatening condition. Patient presentation can range from asymptomatic to sudden death. The typical presentation is in younger patients, with symptoms ranging from asymptomatic to mild palpitations to cardiac arrest.
Kris Ferguson, Peter Papapetrou
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Abstract Long QT syndrome is an uncommon condition and, if left untreated, can be a life-threatening condition. Patient presentation can range from asymptomatic to sudden death. The typical presentation is in younger patients, with symptoms ranging from asymptomatic to mild palpitations to cardiac arrest.
Kris Ferguson, Peter Papapetrou
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Antipsychotics and QT prolongation
Acta Psychiatrica Scandinavica, 2003Objective: To evaluate literature relating to cardiac QT prolongation and the use of antipsychotic drugs.Method: Literature searches of EMBASE, Medline, PsychLIT were performed in December 2001 and reference sections of retrieved papers scrutinized for further relevant reports.Results: The Cardiac QTc interval is difficult to measure precisely or ...
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Prolonged QT-Interval Syndromes
JAMA: The Journal of the American Medical Association, 1986PROLONGATION of the QT interval, either on a congenital or an acquired basis, is associated with an increased likelihood of malignant ventricular arrhythmias. 1-3 Patients with QT prolongation frequently develop recurrent attacks of syncope or may present with sudden death.
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Statistical Characterization of QT Prolongation
Journal of Biopharmaceutical Statistics, 2010The appropriate assessment of QT prolongation remains controversial. We suggest that before the relative merits of various methods can be evaluated, we must state what we assume an assessment of QT prolongation should be about. As a general framework for the assessment of QT prolongation we propose that an assessment of "absolute" or "uncorrected" QT ...
Robert, Schall, Arne, Ring
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Syncope With Prolonged QT Interval
Archives of Pediatrics & Adolescent Medicine, 1976Four children with syncope had a prolonged QT interval on the electrocardiogram. Neurologic studies were negative. One patient had associated deaf mutism, one had a family history of sudden death and prolonged QT interval, and two had ventricular arrhythmias while being monitored in the hospital.
J P, Frank, D Z, Friedberg
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Tamoxifen-induced QT interval prolongation
Journal of Clinical Pharmacy and Therapeutics, 2008We report on a case of tamoxifen-induced QT interval prolongation in a 56-year-old-female patient with hormone-dependent carcinoma of the right breast, stage T2N0M0, grade 3 and HER-2 negative. Partial mastectomy with axillary lymph node excision was performed in July 2007 with adjuvant hormonal and radiation therapy.
L, Slovacek +4 more
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QT dispersion: An electrocardiographic derivative of QT prolongation
American Heart Journal, 2001QT dispersion has been considered a surrogate for heterogeneity of repolarization, leading to ventricular arrhythmias.High-resolution 12-lead electrocardiograms were obtained in 15 patients with a history of ventricular tachycardia or ventricular fibrillation, 15 patients with congestive heart failure, 17 patients with a history of previous Q-wave ...
A D, Krahn +5 more
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Antipsychotic drugs and QT prolongation
International Clinical Psychopharmacology, 2005Antipsychotic drugs (AD) are effective and frequently prescribed to more females than males. AD may cause serious cardiovascular side-effects, including prolonged QT interval, eventually leading to torsades de pointes (TdP) and sudden death. Epidemiologic data and case-control studies indicate an increased rate of sudden death in psychiatric patients ...
Claudia, Stöllberger +2 more
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Gatifloxacin and Prolonged QT Interval
The American Journal of the Medical Sciences, 2004We report the case of a 54-year-old woman who, while being treated for acute sinusitis with gatifloxacin, presented with syncope and was found to have a markedly prolonged QT interval. After stopping gatifloxacin, the QT interval normalized. We speculate that her episode of syncope was caused by a ventricular arrhythmia that resulted from an increased ...
Shoaib R, Ansari, Nagesh, Chopra
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QT prolongation and arrhythmia suppression
American Heart Journal, 1985It seems possible to draw some overall conclusions from the data on antiarrhythmic drug-induced QT prolongation and its role in drug effects. At one end of the spectrum are patients with highly exaggerated QT responses during therapy, most often in the setting of hypokalemia and long cycle lengths (post-ectopic pauses, bradycardia).
D M, Roden, R L, Woosley
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