Frequency Dependent Shortening of Conduction Time through the Reentrant Pathway during Transient Entrainment of Ventricular Tachycardia
| Autor: | Eiichi Itoh, Akira Shibata, Masaomi Chinushi, Yoshifusa Aizawa, Hirohide Uchiyama, Masami Shiba |
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| Rok vydání: | 1998 |
| Předmět: |
Male
Bundle of His medicine.medical_specialty Ventricular Dysfunction Right Ventricular tachycardia Electrocardiography QRS complex Heart Rate Internal medicine medicine Humans Sinus rhythm Heart Aneurysm Aged business.industry Cardiac Pacing Artificial Rate dependent General Medicine Reentry medicine.disease Reentrancy Tachycardia Ventricular cardiovascular system Cardiology Cardiology and Cardiovascular Medicine Entrainment (chronobiology) business Conduction time |
| Zdroj: | Pacing and Clinical Electrophysiology. 21:126-129 |
| ISSN: | 1540-8159 0147-8389 |
| DOI: | 10.1111/j.1540-8159.1998.tb01071.x |
| Popis: | In a patient with nonischemic ventricular tachycardia (VT), VT was entrained and the conduction time from the pacing site to the entrained local electrogram showed a rate dependent shortening and its degree affected by the pacing site. The QRS complex, which was entrained by the last pacing stimulus, was constant and identical to that of VT and no rate dependent facilitated conduction was observed when the heart was paced at similar paced cycle lengths during sinus rhythm. As the mechanism of the shortening of the conduction time through the reentrant circuit, a shift of the entrance seems most likely. |
| Databáze: | OpenAIRE |
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