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Incidence of drug-induced torsades de pointes with intravenous amiodarone.
Indian Heart J
July 2018
Sri Jayadeva Institute Of Cardiovascular Sciences and Research, 9th Block Jayanagar, Bannerghatta Road, Bengaluru 560069, India.
Aim: To define the incidence, presentation, and outcomes of drug-induced Torsades de Pointes (TdP) with intravenous (IV) amiodarone.
Methods: From January 2014 to August 2016 a total of 268 patients received IV amiodarone, 142 for ventricular tachycardia, 104 for atrial flutter/fibrillation, and 22 for incessant atrial tachycardia. A uniform dosing of amiodarone to yield 1gm/day was used in all patients.
Evaluation and management of bradycardia in neonates and children.
Eur J Pediatr
February 2016
Lucile Packard Children's Hospital, Division of Pediatric Electrophysiology, Stanford University, Palo Alto, CA, USA.
Unlabelled: Heart rate is commonly used in pediatric early warning scores. Age-related changes in the anatomy and physiology of infants and children produce normal ranges for electrocardiogram features that differ from adults and vary with age. Bradycardia is defined as a heart rate below the lowest normal value for age.
View Article and Find Full Text PDFThe classical "R-on-T" phenomenon.
Indian Heart J
December 2016
Turkiye Yuksek Ihtisas Training and Research Hospital, Department of Cardiology, Ankara, Turkey.
The polymorphic ventricular tachycardia (PVT) is uncommon arrhythmia with multiple causes and has been classified according to whether they are associated with long QT interval or normal QT. Whereas "Torsade de pointes (TdP)" is an uncommon and distinctive form of PVT occurring in a setting of prolonged QT interval, which may be congenital or acquired (congenital or acquired), "PVT with normal QT" is associated with myocardial ischemia, electrolyte abnormalities (hypokalemia), mutations of the cardiac sodium channel (Brugada syndrome), and the ryanodine receptor (catecholaminergic PVT). This distinction is crucial because of the differing etiologies and management of these arrhythmias.
View Article and Find Full Text PDFPause-dependent normalization of ST-segment elevation during the ajmaline test in a patient with Brugada syndrome.
Heart Rhythm
April 2014
Centro de Arritmias Cardíacas de la Ciudad Autónoma de Buenos Aires, División Cardiología, Hospital General de Agudos J.M. Ramos Mejía, Buenos Aires, Argentina. Electronic address:
Suppression of autonomic-mediated triggered firing in pulmonary vein preparations, 24 hours postcoronary artery ligation in dogs.
J Cardiovasc Electrophysiol
July 2006
University of Oklahoma Health Sciences Center, OU Medical Center, Oklahoma City, Oklahoma 73104, USA.
Introduction: Rapid arrhythmia originating within pulmonary veins (PVs) precipitates atrial fibrillation (AF) in man. To determine a possible basis for an increased incidence of AF observed peri-myocardial infarction in man, we compared AF induction in vivo and triggered arrhythmia formation within isolated PVs in vitro in normal dogs and dogs studied 24 hours postcoronary artery ligation.
Methods And Results: The incidence of AF initiated by atrial premature stimuli was increased in dogs postcoronary artery ligation (6/9) versus normal (2/12) (P = 0.
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