• Pacing Clin Electrophysiol · Nov 2014

    Meta Analysis

    Perioperative anticoagulation management in patients on chronic oral anticoagulant therapy undergoing cardiac devices implantation: a meta-analysis.

    • Ling Du, Yong Zhang, Weizong Wang, and Yinglong Hou.
    • Department of Cardiology, Shandong Provincial Qianfoshan Hospital, Shandong University, Jinan, China; Department of Clinical Pharmacy (seven-year), School of Pharmaceutical Sciences, Shandong University, Jinan, China.
    • Pacing Clin Electrophysiol. 2014 Nov 1; 37 (11): 1573-86.

    AbstractThe perioperative anticoagulation strategy during cardiac implantable electronic devices (CIEDs) implantation is highly variable without consensus among implanting physicians. A systematic literature search was performed in MEDLINE, EMBASE, and the Cochrane Library to identify clinical trials in patients on chronic oral anticoagulant (OAC) therapy undergoing CIEDs implantation. Bleeding and thromboembolic events were compared among heparin bridging, continued OAC, and interrupted OAC groups. Data were expressed as relative risks (RRs) and 95% confidence intervals (CIs) using random effects model. According to the inclusion criteria, totally 14 studies involving 3,744 patients were identified and included in the study. The heparin bridging group showed a significantly higher risk of bleeding events (relative risk [RR] 3.10, 95% confidence interval [CI], 2.02-4.76, P < 0.00001), especially pocket hematoma (RR 3.58, 95% CI, 2.17-5.91, P < 0.00001), but no significantly lower incidence of thromboembolism (RR 1.16, 95% CI, 0.36-3.67, P = 0.81) compared with OAC continuation group. Meanwhile, both unfractionated heparin-bridged and low-molecular-weight heparin-bridged subgroup exhibited a higher risk of bleeding. There was no significant difference between OAC continuation and OAC interruption group in bleeding (RR 0.90, 95% CI, 0.65-1.24, P = 0.52) and thromboembolic (RR 0.57, 95% CI, 0.16-2.01, P = 0.38) complications. The OAC interruption group had an obviously lower incidence of bleeding in comparison with the heparin bridging group and no statistical significance was observed in thrombus occurrence. Implantation of CIEDs with continuous OAC therapy may offer the best option by combining the lower risk of bleeding with rare thromboembolism compared with heparin bridging and OAC interruption therapy.©2014 Wiley Periodicals, Inc.

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