Document Detail


Suppression of ventricular fibrillation by electrical modification of the Purkinje system in hypertrophic cardiomyopathy.
MedLine Citation:
PMID:  24113718     Owner:  NLM     Status:  Publisher    
Abstract/OtherAbstract:
A 56-year-old man in hypertrophic cardiomyopathy had an electrical storm caused by ventricular fibrillation (VF). Mapping during the initiation of the VF triggered by a premature ventricular contraction (PVC1), with right bundle branch block (RBBB)-like morphology and superior axis, demonstrated a prominent Purkinje-muscle junction (PMJ) delay at the distal portion of the left posterior fascicle. Delivery of radiofrequency (RF) energy to this area abolished the VF triggered by the PVC1. However, VF emerged by triggering another PVC (PVC2) with RBBB-like morphology and inferior axis. Similarly, the initiation of VF was associated with the PMJ delay at the peripheral left anterior fascicle, where RF delivery completely suppressed the VF. The PMJ delay and subsequent Purkinje-muscle reentry-like activity could be essential for the initiation of the Purkinje-related VF.
Authors:
Hisashi Yokoshiki; Hirofumi Mitsuyama; Masaya Watanabe; Kazuya Mizukami; Hiroyuki Tsutsui
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Publication Detail:
Type:  JOURNAL ARTICLE     Date:  2013-10-11
Journal Detail:
Title:  Heart and vessels     Volume:  -     ISSN:  1615-2573     ISO Abbreviation:  Heart Vessels     Publication Date:  2013 Oct 
Date Detail:
Created Date:  2013-10-11     Completed Date:  -     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  8511258     Medline TA:  Heart Vessels     Country:  -    
Other Details:
Languages:  ENG     Pagination:  -     Citation Subset:  -    
Affiliation:
Department of Cardiovascular Medicine, Hokkaido University Graduate School of Medicine, Kita-15, Nishi-7, Kita-ku, Sapporo, 060-8638, Japan, yokoshh@med.hokudai.ac.jp.
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