Results 151 to 160 of about 53,127 (203)
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Hypocalcemia-Induced QT Interval Prolongation
Cardiology, 2022An 87-year-old man with a history of transcatheter aortic valve replacement, pulmonary hypertension, diastolic dysfunction with preserved systolic function, and myelofibrosis had a 12-lead ECG showed a prolonged QT interval of 508 ms with heart-rate correction placing it in the 99th percentile of the population.
Jacky K.K. Tang, Simon W. Rabkin
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The Journal of Emergency Medicine, 1985
The QT interval is a function of ventricular repolarization time and is measured from the onset of the QRS complex to the end of the T wave. The length of this interval is inversely related to heart rate. A prolonged QT interval is most often secondary to the use of Type I antidysrhythmic medications (quinidine, procainamide).
J L, Scott, R M, Walls
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The QT interval is a function of ventricular repolarization time and is measured from the onset of the QRS complex to the end of the T wave. The length of this interval is inversely related to heart rate. A prolonged QT interval is most often secondary to the use of Type I antidysrhythmic medications (quinidine, procainamide).
J L, Scott, R M, Walls
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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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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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Drug-Induced Prolongation of the QT Interval
New England Journal of Medicine, 2004The single most common cause of the withdrawal or restriction of the use of marketed drugs has been QT-interval prolongation associated with polymorphic ventricular tachycardia, or torsade de pointes, a condition that can be fatal. This review summarizes the current knowledge about molecular and clinical predictors of drug-induced QT-interval ...
Curigliano G, Cipolla C, de Braud F
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Prolongation of the QT interval in primary aldosteronism
Clinical and Experimental Pharmacology and Physiology, 2005SUMMARY1. Only limited information is available concerning the changes in the electrocardiogram in primary aldosteronism. The aim of the present study was to determine factors influencing the QTc interval in patients with primary aldosteronism.2. Nineteen patients with primary aldosteronism caused by a Conn's adenoma and 69 patients with essential ...
Kiyoshi, Matsumura +4 more
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Antipsychotic Drugs and QT Interval Prolongation
Psychiatric Quarterly, 2003The QTc prolongation by antipsychotic drugs is of major concern, especially in light of the data indicating an increased risk of sudden death in psychiatric patients taking these drugs. Sudden death in psychiatric patients could be partially attributed to drug-induced torsades de pointes and for this reason careful evaluation of QTc prolonging ...
Wojciech, Zareba, David A, Lin
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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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Prolonged QT interval and cocaine use
Journal of Electrocardiology, 1997Cardiovascular consequences of cocaine use are well known, and surveillance for them is common practice in the routine care of cocaine abusers. However, the cardiac electrical abnormalities that arise, although studied in animal experiments, lack correlation with human reports.
R, Perera, A, Kraebber, M J, Schwartz
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