Document Detail

Long-term follow-up data of coronary sinus stenting for the stabilization of the left ventricular leads.
MedLine Citation:
PMID:  20946309     Owner:  NLM     Status:  MEDLINE    
BACKGROUND: Cardiac resynchronization therapy has been increasingly used for patients with heart failure. However, unstable and dislocated coronary sinus leads reduce the effectiveness of this important intervention.
AIM: To examine the long-term effects of coronary sinus side branch stenting on sensing and pacing parameters of the left ventricular leads.
METHODS: A total of eight patients (six males; two females; mean age, 56.6 ± 14.4 years) whose coronary sinus lead dislocated during the procedure were included in the study. Targeted coronary sinus side branch stenting was performed to stabilize the leads. Sensing and pacing parameters including lead impedance, capture threshold, and R-wave amplitude were measured at implantation, first month, sixth month, and every 6-month period.
RESULTS: Mean follow-up period was 30.4 ± 7.4 months. At the time of implantation, lead impedance, capture threshold, and R-wave amplitude were 656 ± 162 Ω, 1.1 ± 0.5 V, and 13.0 ± 6.8 mV, respectively. No statistically significant mean lead impedance, capture threshold, and R-wave amplitude differences were observed between at the time of implantation and at the time of last follow-up (697 ± 164 Ω, 1.1 ± 0.5 V, 12.8 ± 6.9 mV, respectively).
CONCLUSION: In this long-term study, coronary sinus side branch stenting for the stabilization of dislocated leads seems to be effective.
Ahmet Duran Demir; Serkan Cay; Ali Riza Erbay; Orhan Maden; Ramazan Atak; Yucel Balbay
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Publication Detail:
Type:  Journal Article     Date:  2010-10-14
Journal Detail:
Title:  Pacing and clinical electrophysiology : PACE     Volume:  33     ISSN:  1540-8159     ISO Abbreviation:  Pacing Clin Electrophysiol     Publication Date:  2010 Dec 
Date Detail:
Created Date:  2010-12-07     Completed Date:  2011-04-21     Revised Date:  2014-07-30    
Medline Journal Info:
Nlm Unique ID:  7803944     Medline TA:  Pacing Clin Electrophysiol     Country:  United States    
Other Details:
Languages:  eng     Pagination:  1485-9     Citation Subset:  IM    
Copyright Information:
©2010, The Authors. Journal compilation ©2010 Wiley Periodicals, Inc.
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MeSH Terms
Cardiac Resynchronization Therapy Devices*
Coronary Sinus / surgery*
Electrodes, Implanted*
Follow-Up Studies
Foreign-Body Migration / radiography
Heart Failure / surgery
Heart Ventricles / physiopathology
Middle Aged
Prospective Studies
Prosthesis Failure
Treatment Outcome

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

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