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Pleomorphic ventricular tachycardia originating from Purkinje fiber network of left anterior fascicle
Title: | Pleomorphic ventricular tachycardia originating from Purkinje fiber network of left anterior fascicle |
Authors: | Yokoshiki, Hisashi Browse this author | Mitsuyama, Hirofumi Browse this author | Watanabe, Masaya Browse this author | Sakurai, Masayuki Browse this author | Tsutsui, Hiroyuki Browse this author |
Keywords: | Pleomorphic ventricular tachycardia | Polymorphic ventricular tachycardia | Diastolic potential | Delayed potential | Left anterior fascicle | Purkinje fiber network | Syncope | Radiofrequency ablation |
Issue Date: | Sep-2010 |
Publisher: | Elsevier |
Journal Title: | Journal of Electrocardiology |
Volume: | 43 |
Issue: | 5 |
Start Page: | 452 |
End Page: | 458 |
Publisher DOI: | 10.1016/j.jelectrocard.2009.12.007 |
PMID: | 20092827 |
Abstract: | A 55-year old woman with recurrent syncope and palpitation experienced polymorphic ventricular tachycardia (VT) and more than three monomorphic VTs with a right bundle branch block configuration, either inferior-, middle-, and superior-axis. During the pleomorphic VT, the diastolic potential (dp) was recorded at the antero-lateral left ventricle. Changes in the QRS morphology were associated with the time between dp and onset of QRS complex (dp-V interval), and prolongation of dp-V interval terminated the VT. In addition, the delayed potentials were seen during sinus rhythm around this area. Delivery of radiofrequency current targeting the delayed potentials abolished all the VTs. Different exits from relatively large area of slow conduction in the left anterior fascicle might have produced the pleomorphic VTs. |
Type: | article (author version) |
URI: | http://hdl.handle.net/2115/43902 |
Appears in Collections: | 北海道大学病院 (Hokkaido University Hospital) > 雑誌発表論文等 (Peer-reviewed Journal Articles, etc)
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Submitter: 横式 尚司
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