Idiopathic long QT syndrome: Association of ventriculartachycardia with alternating left and right bundle branch block
| Autor: | Gangaiah Natarajan, Michael R. McVay, Borys Surawicz, C.Pratap Reddy |
|---|---|
| Rok vydání: | 1982 |
| Předmět: |
Male
medicine.medical_specialty Adolescent Refractory period Heart Ventricles Long QT syndrome Bundle-Branch Block Torsades de pointes Ventricular tachycardia QT interval Electrocardiography Tachycardia Internal medicine medicine Humans Repolarization Sinus rhythm cardiovascular diseases Child Bundle branch block business.industry Syndrome medicine.disease cardiovascular system Cardiology Cardiology and Cardiovascular Medicine business |
| Zdroj: | Journal of Electrocardiology. 15:189-194 |
| ISSN: | 0022-0736 |
| DOI: | 10.1016/s0022-0736(82)80015-0 |
| Popis: | Summary A case of sporadic long QT syndrome with ventricular tachycardia characteristic of torsades de pointes is presented. The ECG revealed sinus rhythm with marked prolongation (>140%) of QT interval and alternating periods of left and right bundle branch block. The onset of ventricular tachydardia was associated with alternating left and right bundle branch block and the disappearance of bundle branch block coincided with the resolution of ventricular tachycardia. This observation suggests the possibility that heterogeneous repolarization of the bundle branch system contributed to ventricular tachycardia either alone or in combination with dispersion of refractoriness of the ventricular myocardium. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|