Transvenous Lead Extraction During Uninterrupted Warfarin Therapy: Feasibility and Outcomes

Background Uninterrupted anticoagulation is important for patients at high risk for thromboembolism. Bridging with heparin/enoxaparin increases the risk of hematoma and infection. There are no published data on the feasibility of transvenous lead extraction (TLE) during uninterrupted anticoagulation. Objective The purpose of this study was to examine the feasibility and safety of TLE during uninterrupted warfarin therapy with therapeutic international normalized ratio (INR). Methods We performed a retrospective study of patients undergoing TLE while receiving uninterrupted warfarin therapy with INR ≥2.0 at a high-volume center. Results Between March 2011 and December 2016, 1212 patients underwent TLE. Of these patients, 62 underwent TLE during uninterrupted warfarin therapy with therapeutic INR (mean 2.5 ± 0.5; range 2.0–4.5). The cohort was 85% male, mean age 65 years, CHA 2 DS 2 -VASc score 3.4 ± 1.6, and left ventricular ejection fraction 41% ± 16%. A total of 114 of 116 leads were completely removed. These include 45 (38.4%) defibrillator leads of average age 7.8 ± 3.7 years, 65 (55.6%) pace-sense leads of average age 10.5 ± 6.6 years, and 6 (5.2%) coronary sinus lead of average age 5.5 ± 3.4 years. There was a 98.4% procedural and clinical success rate. Two patients had procedure-related complications: 1 small pericardial effusion that resolved spontaneously, and 1 femoral vein tear due to extraction of a large mass of a disrupted implantable cardioverter–defibrillator lead requiring vascular repair. Conclusion TLE during uninterrupted warfarin therapy with therapeutic INR may be considered in patients at high risk for thromboembolism if performed by experienced operators at high-volume centers.