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Performance of a New Steroid‐Eluting Coronary Sinus Lead Designed for Left Ventricular Pacing
Author(s) -
ACHTELIK MICHAEL,
BOCCHIARDO MARIO,
TRAPPE HANSJOACHIM,
GAITA FIORENZO,
LOZANO IGNACIO,
NIAZI IMRAN,
GOLD MICHAEL,
YONG PATRICK,
DUBY CHRISTIAN
Publication year - 2000
Publication title -
pacing and clinical electrophysiology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.686
H-Index - 101
eISSN - 1540-8159
pISSN - 0147-8389
DOI - 10.1111/j.1540-8159.2000.tb07009.x
Subject(s) - medicine , coronary sinus , cardiology , lead (geology) , defibrillation , qrs complex , heart failure , ejection fraction , implant , cardiac resynchronization therapy , ventricular pacing , surgery , geomorphology , geology
The Ventak CHF/CONTAK CD Biventricular Pacing Study is a prospective randomized trial to examine the safety and efficacy of biventricular (BV) pacing in patients with standard indications for an ICD, symptomatic heart failure, a LVEF ≤ 0.35, and a QRS ≥ 120 ms. Patients underwent implantation of a BV pacing and sensing system with backup defibrillation capability, which includes a steroideluting coronary venous lead that is advanced into the coronary venous vasculature by over‐the‐wire techniques. LV pacing threshold, BV impedance, and BV R wave amplitude were measured in 58 consecutive patients. Using a percutaneous over‐the‐wire insertion technique, steroid‐eluting coronary venous leads were associated with satisfactory mean LV pacing threshold, BV impedance, and BV R wave amplitude acutely up to 4 months after implantation. Pacing threshold stabilized 2 weeks after lead implantation and sensing threshold remained stable from the time of implant.