Implantation of dual chamber pacemaker defibrillator and placement of endocardial leads via the axillary vein.
OBJECTIVES: To assess the preliminary clinical results of implantation of dual chamber pacemaker defibrillator and to evaluate the safety and effectiveness of placement of endocardial leads in the axillary vein. METHODS: Seven patients with ventricular tachycardia and/or ventricular fibrillation (VT/VF), associated with bradyanhythmia received implantation of a dual chamber pacemaker defibrillator, including 5 patients with coronary artery disease and 2 patients with dilated cardiomyopathy. The atrial and ventricular leads were introduced via the axillary vein under venographic guidance. RESULTS: Dual chamber pacemaker defibrillators were successfully implanted in the left chest subcutaneous pocket in 5 patients and the left pectoral muscular pocket in 2 patients. All the VT/VF occurring either inducibly during the procedure or spontaneuously during follow-up were detected promptly and treated successfully. Both the pacing and sensing functions were satisfactory. The endocardial leads required were successfully introduced via the axillary vein without major complications. CONCLUSIONS: Dual chamber pacemaker defibrillators can provide reliable therapy for VT/VF and the dual chamber pacing function. Placement of endocardial leads via the axillary vein under venographic guidance is safe and effective.[1]References
- Implantation of dual chamber pacemaker defibrillator and placement of endocardial leads via the axillary vein. Yang, J., Powell, A., Davis, M. Chin. Med. J. (2001) [Pubmed]
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