Proarrhythmic effect of class I agents: Clinical and electrocardiographic investigation of polymorphic ventricular tachycardia associated with QRS widening during atrial tachyarrhythmias.
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چکیده
منابع مشابه
Ventricular Tachycardia with Narrow QRS
gram. Tachyeardias originating in the left bundle branch and documented by right, left, and His bundle recordings have been produced in animals given excessive digitalis. We have noted a similar tachycardia in a patient with ischemic heart disease receiving digitalis during hypokalemia. The QRS complexes were 0.10 sec in duration and by contour suggested an ectopic focus located in the posterio...
متن کاملWide-QRS tachycardia inducible by both atrial and ventricular pacing.
We describe an interesting case of an atriofascicular re-entrant tachycardia due to a Mahaim pathway. The differential diagnosis is discussed and a review of the relevant literature is presented.
متن کاملClinical experiences of patients with catecholaminergic polymorphic ventricular tachycardia.
Catecholaminergic polymorphic ventricular tachycardia is a rare entity that can occur in children without cardiac disease and with a normal QT interval. It may cause syncope, convulsions, and sudden death during physical activity or emotional distress. We report the clinical features, treatment, and follow-up of 16 children with this diagnosis, emphasizing the potentially fatal nature of the di...
متن کاملClinical phenotype and functional characterization of CASQ2 mutations associated with catecholaminergic polymorphic ventricular tachycardia.
BACKGROUND Four distinct mutations in the human cardiac calsequestrin gene (CASQ2) have been linked to catecholaminergic polymorphic ventricular tachycardia (CPVT). The mechanisms leading to the clinical phenotype are still poorly understood because only 1 CASQ2 mutation has been characterized in vitro. METHODS AND RESULTS We identified a homozygous 16-bp deletion at position 339 to 354 leadi...
متن کاملDiagnosis of Ventricular Tachycardia Electrocardiography
Les signes clectrocardiographiques classiques nc sont pas toujours suMisants pour ·le diagnostic de la tachycardie ventriculaire. Nous avons insiste d'une part sur !'importance diagnostique des complex de ca· ptures et d'auters part sur l'import.anre des procedcs nouveux Tels : 1- Enrcgishemcnt du potentiel du faisreau de 2- Stimulation references endocavitaire.
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ژورنال
عنوان ژورنال: Japanese Journal of Electrocardiology
سال: 1997
ISSN: 1884-2437,0285-1660
DOI: 10.5105/jse.17.46