Document Detail


Ventricular pacing thresholds following high-energy implantable cardioverter defibrillator shocks in integrated bipolar defibrillation systems.
MedLine Citation:
PMID:  19492035     Owner:  NLM     Status:  In-Data-Review    
Abstract/OtherAbstract:
BACKGROUND: Increased ventricular pacing thresholds have been observed following monophasic implantable cardioverter defibrillator (ICD) shocks.
AIM: To examine changes following high-energy biphasic shocks delivered by integrated bipolar ICD systems.
METHOD: Ten episodes of ventricular fibrillation (VF) were induced at 10 min intervals in nine pigs with integrated ICD systems. After 10 s of each episode of VF, a 40 J biphasic shock was delivered, which successfully terminated VF (a total of 10 shocks). The bipolar pacing threshold at the right ventricular apex was measured before each shock and at 1 min intervals after each shock.
RESULTS: The mean pacing threshold was 0.029+/-0.059 muJ before the first shock and gradually increased to 0.14+/-0.10 muJ after the 10th shock.
CONCLUSION: It may be necessary to pace at a high-voltage output following biphasic shocks delivered by integrated bipolar ICD systems.
Authors:
Yoshio Yamanouchi; Kei Miyoshi; Sunao Kodama; Yuhei Shiga; Shunichiro Sumi; Hideya Niimura; Hideaki Toujou; Hidenori Urata
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Publication Detail:
Type:  Journal Article    
Journal Detail:
Title:  Experimental and clinical cardiology     Volume:  14     ISSN:  1205-6626     ISO Abbreviation:  Exp Clin Cardiol     Publication Date:  2009  
Date Detail:
Created Date:  2009-06-03     Completed Date:  -     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  9715903     Medline TA:  Exp Clin Cardiol     Country:  Canada    
Other Details:
Languages:  eng     Pagination:  3-5     Citation Subset:  -    
Affiliation:
Department of Cardiology, Chikushi Hospital, Fukuoka University, Fukuoka, Japan.
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