Stabilization of the coronary sinus electrode position with coronary stent implantation to prevent and treat dislocation

Szabolcs Szilagyi, B. Merkely, Attila Roka, E. Zima, Gabor Fulop, Valentina Kutyifa, Gabor Szucs, David Becker, Astrid Apor, L. Gellér

Research output: Contribution to journalArticle

49 Citations (Scopus)

Abstract

CS Electrode Stabilization with Stent Implantation. Introduction: Coronary sinus (CS) leads used for cardiac resynchronization have undergone development in the last years. However, dislocation rate remained high (5-9%). The aim of this study was to investigate the effectiveness and safety of stent implantation in a CS side vein to stabilize the left ventricular lead position after postoperative or intraoperative dislocation of the electrode. Methods and Results: Thirty-six patients (age: 64 ± 9.7 years, 19 primary, 17 ischemic cardiomyopathy, NYHA class III: 30, IV: 6) were treated with stenting. The procedure was performed because of postoperative dislocation in seven patients, while dislocation was observed during the implantation in 29 cases. The electrode was repositioned into the desired position and a bare metal coronary stent was introduced via another guide wire. The stent was deposited at 5- to 15-mm proximal to the tip of the electrode with a pressure of 6 to 14 atmospheres. Control angiography showed no blood flow compromise in any of the side branches or in the coronary sinus. Control echocardiography did not show pericardial effusion due to stenting. During follow-up (11.5 ± 5.5, 2-23 months), left ventricular pacing threshold increased from 2.2 to 5.6 V in one patient, but dislocation was not found by fluoroscopy. Clinically important pacing threshold increase was not detected in the other cases. Impedance measurements did not suggest lead insulation failure. Conclusion: Stent implantation to stabilize the left ventricular lead position seems to be a useful and safe procedure in the treatment of patients with complicated coronary sinus anatomy or lead instability.

Original languageEnglish
Pages (from-to)303-307
Number of pages5
JournalJournal of Cardiovascular Electrophysiology
Volume18
Issue number3
DOIs
Publication statusPublished - Mar 2007

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Coronary Sinus
Stents
Electrodes
Cardiac Resynchronization Therapy
Pericardial Effusion
Fluoroscopy
Electric Impedance
Atmosphere
Cardiomyopathies
Echocardiography
Veins
Anatomy
Angiography
Metals
Safety
Pressure
Lead

Keywords

  • Cardiac resynchronization
  • Coronary sinus
  • Lead dislocation
  • LV lead implantation
  • Stent implantation

ASJC Scopus subject areas

  • Cardiology and Cardiovascular Medicine
  • Physiology

Cite this

Stabilization of the coronary sinus electrode position with coronary stent implantation to prevent and treat dislocation. / Szilagyi, Szabolcs; Merkely, B.; Roka, Attila; Zima, E.; Fulop, Gabor; Kutyifa, Valentina; Szucs, Gabor; Becker, David; Apor, Astrid; Gellér, L.

In: Journal of Cardiovascular Electrophysiology, Vol. 18, No. 3, 03.2007, p. 303-307.

Research output: Contribution to journalArticle

Szilagyi, Szabolcs ; Merkely, B. ; Roka, Attila ; Zima, E. ; Fulop, Gabor ; Kutyifa, Valentina ; Szucs, Gabor ; Becker, David ; Apor, Astrid ; Gellér, L. / Stabilization of the coronary sinus electrode position with coronary stent implantation to prevent and treat dislocation. In: Journal of Cardiovascular Electrophysiology. 2007 ; Vol. 18, No. 3. pp. 303-307.
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