Document Detail

Progressive decrease in amplitude of intracardiac ventricular electrogram and higher left ventricular ejection fraction are associated with conductors' externalization in Riata leads.
MedLine Citation:
PMID:  23388185     Owner:  NLM     Status:  Publisher    
AIMS: Increased rates of structural abnormalities including externalized conductors have been reported in the Riata family of implantable cardioverter-defibrillator leads (St Jude Medical). Little is known about their reliability and the time lag for emergence of functional or structural abnormalities.METHODS AND RESULTS: Thirty-six patients who received small-caliber leads of the Riata family and who completed face-profile flouroscopies, repeated at every 6 months were included. We assessed the prevalence of conductors' externalization and its relation to abnormal electrical parameters or adverse events. Thirty-six patients, mean age = 64 ± 10 years, with at least 7-month completed fluoroscopy follow-up were included in the analysis. Externalized conductors were identified in 12 (33%) patients after a 53-month (13-114) mean delay. A higher left ventricular ejection fraction (LVEF): 47 ± 13 vs. 33 ± 12%, P = 0.04, and a progressive decrease (≥30% of the initial value) in amplitude of ventricular electrogram 9/12 (75%) vs. 4/24 (17%), P = 0.03 were independently associated with the fluoroscopic failures. Detection of the conductors' externalization was preceded by an electrical lead abnormality in 10 (83%) patients.CONCLUSION: Repeated face-profile fluoroscopies allowed detection of conductors' externalization in 33% of patients implanted with Riata leads. Better LVEF and a progressive decrease in amplitude of intracardiac ventricular electrogram were independently associated with externalized conductors. The structural abnormality was preceded by an electrical lead dysfunction 83% of patients.
Maciej Kubala; Sarah Traullé; Laurent Leborgne; Jean-Sylvain Hermida
Related Documents :
23602035 - Patients with new york heart association class iii heart failure may benefit with high ...
17477105 - Noninvasive cardiac imaging.
23415315 - Risk stratification of ambulatory patients with advanced heart failure undergoing evalu...
23438605 - Prognostic value of angiographic perfusion score (aps) following percutaneous intervent...
22484505 - Testosterone replacement therapy promotes angiogenesis after acute myocardial infarctio...
1259565 - Crossed double internal mammary-to-coronary artery grafts.
Publication Detail:
Type:  JOURNAL ARTICLE     Date:  2013-2-6
Journal Detail:
Title:  Europace : European pacing, arrhythmias, and cardiac electrophysiology : journal of the working groups on cardiac pacing, arrhythmias, and cardiac cellular electrophysiology of the European Society of Cardiology     Volume:  -     ISSN:  1532-2092     ISO Abbreviation:  Europace     Publication Date:  2013 Feb 
Date Detail:
Created Date:  2013-2-7     Completed Date:  -     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  100883649     Medline TA:  Europace     Country:  -    
Other Details:
Languages:  ENG     Pagination:  -     Citation Subset:  -    
Department of Cardiac Arrhythmia, Cardiology Unit, Picardie University Hospital, Boulevard Laennec, 80000 Amiens, France.
Export Citation:
APA/MLA Format     Download EndNote     Download BibTex
MeSH Terms

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

Previous Document:  Individually tailored left ventricular lead placement: lessons from multimodality integration betwee...
Next Document:  Measures of Safeguard and Rehabilitation for landscape protection planning: A qualitative approach b...