Document Detail


Bidirectional ventricular tachycardia caused by a reentrant mechanism with left bundle branch block configuration on electrocardiography.
MedLine Citation:
PMID:  18654028     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
Reentrant bidirectional ventricular tachycardia (VT) with left bundle branch block (LBBB) configuration was diagnosed in a 54-year-old woman who showed 2 types of VT: QRS morphologies of LBBB with inferior axis and LBBB with superior axis. The development of VT with a superior axis was preceded by VT with inferior axis and/or both configurations of VT in alternate beats exhibiting bidirectional VT. The electrophysiological study demonstrated reproducible induction of both types of VT by programmed ventricular stimulation and both types of VT were entrained. Using conventional pace mapping and electro-anatomical mapping methods, radiofrequency energy applications at the 2 exit sites of the reentry path successfully terminated both types of VT and the patient was free from VT attacks for more than 15 months.
Authors:
Akiko Ueda-Tatsumoto; Harumizu Sakurada; Mitsuhiro Nishizaki; Hidetaka Okazaki; Kota Komiyama; Yuka Mizusawa; Tamotsu Tejima; Masayasu Hiraoka
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Publication Detail:
Type:  Case Reports; Journal Article    
Journal Detail:
Title:  Circulation journal : official journal of the Japanese Circulation Society     Volume:  72     ISSN:  1346-9843     ISO Abbreviation:  Circ. J.     Publication Date:  2008 Aug 
Date Detail:
Created Date:  2008-07-25     Completed Date:  2008-10-03     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  101137683     Medline TA:  Circ J     Country:  Japan    
Other Details:
Languages:  eng     Pagination:  1373-7     Citation Subset:  IM    
Affiliation:
Department of Cardiology, Tokyo Metropolitan Hiroo Hospital, and Department of Cardiovascular Diseases, Medical Research Institute, Tokyo Medical and Dental University, Tokyo, Japan. a_tatsumoto@yahoo.co.jp
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MeSH Terms
Descriptor/Qualifier:
Action Potentials
Bundle-Branch Block / complications,  diagnosis*,  physiopathology,  surgery
Catheter Ablation
Electrocardiography*
Electrophysiologic Techniques, Cardiac
Female
Heart Conduction System / physiopathology*
Humans
Middle Aged
Tachycardia, Ventricular / etiology*,  physiopathology,  surgery
Time Factors
Treatment Outcome

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine


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