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11 Possible Causes for Early Repolarization, Myoclonic Jerking, Ventricular Fibrillation

  • Cocaine Abuse

    Cocaine has been found to trigger chaotic heart rhythms, called ventricular fibrillation; accelerate heartbeat and breathing; and increase blood pressure and body temperature[] Those rhythms may be ventricular tachycardia and ventricular fibrillation and may cause sudden death.[]

  • Torsades De Pointes

    The following day, nursing staff observed repetitive, short-lived episodes of generalized mild myoclonic jerks. The patient remained conscious during these episodes.[] Therefore, in this context long or short QT syndrome, Brugada syndrome or early repolarization syndrome were unlikely. 6 Analysis of periods of torsade de pointes in our patient[] Sumatriptan manufacturer-provided drug information states that life threatening arrhythmias, including ventricular tachycardia and ventricular fibrillation (VF), have been[]

  • Sudden Cardiac Death

    The following points need to be considered: Prompt recognition and diagnosis (brief seizure-like activity or involuntary myoclonic jerks have been reported in approximately[] Patients having major clinical events showed more frequent Brugada type patterns, early repolarization, and more diffuse multivessel coronary vasospasms.[] Implantable cardioverter-defibrillators (ICDs) are effective in patients with structural heart disease and ventricular fibrillation.[]

  • Sick Sinus Syndrome

    Syncope may be accompanied by myoclonic jerks (convulsive syncope), but postictal confusion is absent.[] The simultaneous occurrence of V596M and R16472H may increase the severity of early repolarization.[] Multifocal premature ventricular contractions followed by ventricular fibrillation were documented.[]

  • Syncope

    jerking is common in syncope.[] Why is ‘Benign’ early repolarization not a benign condition in patients with syncope? Which children with syncope should be admitted? and many more….[] Ventricular fibrillation (VF) is the most common arrhythmia leading to sudden cardiac death, but in rare cases VF can manifest as a syncope, provided that it will self-terminate[]

  • SHORT Syndrome

    Myoclonic seizures (brief shock-like jerks of a muscle or group of muscles) appear between 1 and 5 years in 85% of children with Dravet syndrome.[] High prevalence of early repolarization in short QT syndrome. Heart Rhythm 2010;7:647-52.[] […] and ventricular fibrillation.[]

  • Hypertrichotic Osteochondrodysplasia

    jerks.[] Examples of J-wave disorders are arrhythmias associated with an early repolarization pattern in the inferior or mid to lateral precordial leads, Brugada syndrome, some cases[] KCNJ8 sequence variations are traditionally associated with J-wave syndromes, involving ventricular fibrillation and sudden cardiac death.[]

  • Carotid Sinus Syncope

    Patients in whom the cardiac arrest had lasted 14 seconds had 1 or 2 generalized myoclonic jerks.[] In patients with syncope, the clinical significance of the early repolarization pattern is unknown. Recommendations for Early Repolarization Pattern 5.[] It has also been reported to precipitate ventricular fibrillation.[]

  • Familial Progressive Cardiac Conduction Defect Type 2

    Seizures began at 21/2 years with arm stiffness, then clusters of right-sided facial twitching and weakness, then staring spells, eye twitching, and myoclonic jerks.[] Long-term outcome associated with early repolarization on electrocardiography. N Engl J Med 2009; 361: 2529–37.[] Fibrillation 261 Single Nucleotide Polymorphisms in Health and Cardiac Disease 281 Electrophysiological Remodeling in Dilated Cardiomyopathy and Heart Failure 290 Ventricular[]

  • Dofetilide

    jerks, sleep disorder, anxiety, syncope, head injuries, or a family history of seizures Have any serious or active medical or psychiatric illness (including depression) which[] […] afterdepolarizations (prolonged repolarization) in cell models and Torsade de Pointes in a rabbit screen for proarrhythmic properties when administered at a dose of 10 mg[] […] dofetilide-associated ventricular tachyarrhythmias and ICD-induced ventricular fibrillation six months after the initiation of the antiarrhythmic drug therapy.[]

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