title: Comparison of results with different left ventricular pacing leads.
abstract: OBJECTIVE
  To compare different coronary sinus (CS) leads and delivery systems (DSs) for left ventricular pacing.
  
  
  RESULTS
  Delivery systems-related (including CS dissection and dislocations during sheath/stylet removal) and lead-related (including failure to accomplish implantations and long-term malfunctions resulting in abandonment or repositioning/replacing of the lead) complications between systems and leads were compared. We used Medtronic (MDT) attain DS (n = 123) with over-the-wire (OTW) (4193, 4194) and stylet-driven (2187) leads, and Guidant (GDT) DS (n = 126) with Easytrak OTW leads (4513, 4518, and 4525). Coronory sinus dissection occurred in 6/123 (5%) cases using the MDT DS vs. 7/126 (6%) with GDT DS (P= NS). Dislocations during sheath/stylet removal occurred in 8/123 cases (6%) with MDT DS, and in 8/126 (6%) with GDT DS (P= NS). Failure to achieve successful implantation occurred in 6/32 (19%) of the 2187 leads, in 11/87(13%) of the 4193/4194 leads, in 7/94(7%) of the 4513/4518 leads, and in 4/29 (14%) of the 4525 leads (P= NS). Long-term lead-related complications occurred in 5/32 (15%) of the 2187 leads, 19/80 (23%) of the 4193/4194 leads, 19/93 (20%) of the 4513/4518 leads, and 2/28 (7%) of the 4525 leads (P= NS).
  
  
  CONCLUSIONS
  No significant differences in complication rates between systems and leads were observed.
authors.affiliation: Heart Institute, Sheba Medical Center and Sackler Faculty of Medicine, Tel Aviv University, 52621 Tel Hashomer, Tel Aviv, Israel. ernof@netvision.net.il
authors.forename: Eyal
authors.initials: E
authors.lastname: Nof
authors.forename: Osnat
authors.initials: O
authors.lastname: Gurevitz
authors.forename: Shemy
authors.initials: S
authors.lastname: Carraso
authors.forename: David
authors.initials: D
authors.lastname: Bar-Lev
authors.forename: David
authors.initials: D
authors.lastname: Luria
authors.forename: Sharona
authors.initials: S
authors.lastname: Bachar
authors.forename: Michael
authors.initials: M
authors.lastname: Eldar
authors.forename: Michael
authors.initials: M
authors.lastname: Glikson
mesh_terms: D000368:Aged; D000369:Aged, 80 and over; D002304:Cardiac Pacing, Artificial / Q000379:methods*; D054326:Coronary Sinus / Q000503:physiopathology; D004867:Equipment Design; D004868:Equipment Failure; D005260:Female; D005500:Follow-Up Studies; D005548:Foreign-Body Migration; D006333:Heart Failure / Q000503:physiopathology / Q000628:therapy; D006352:Heart Ventricles / Q000503:physiopathology*; D006801:Humans; D008297:Male; D008875:Middle Aged; D010138:Pacemaker, Artificial