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目的探讨Medtronic 3830主动固定电极在右房间隔部起搏的可行性和安全性。方法 44例需行DDD起搏的患者分为两组,房间隔组22例采用Medtronic 3830主动固定电极,右心耳组22例采用Medtronic 4574或St Jude 1642被动电极。通过比较植入时间、X线曝光时间、术中术后起搏参数、术后并发症来评价房间隔起搏的可行性。结果与右心耳组相比,房间隔组的植入时间和曝光时间稍有延长,两组的起搏参数及术后并发症无差异。房间隔组心房激动时间要明显短于右心耳组[(94.6±30.8)ms vs(135.5±20.3)ms,P<0.05]。结论房间隔起搏安全可行,但操作难度稍大。
Objective To investigate the feasibility and safety of Medtronic 3830 active fixed electrode in right atrial septal pacing. Methods Forty - four patients undergoing DDD pacing were divided into two groups: 22 patients in atrial septum group received Medtronic 3830 active fixed electrode, and 22 patients in right atrial appendage group received Medtronic 4574 or St Jude 1642 passive electrode. The feasibility of atrial septal pacing was evaluated by comparing implantation time, X-ray exposure time, intraoperative postoperative pacing parameters and postoperative complications. Results Compared with the right atrial appendage group, the atrial septum implantation time and exposure time slightly prolonged, there was no difference between the two groups in pacing parameters and postoperative complications. Atrial septal atrial activation time was significantly shorter than the right atrial appendage group [(94.6 ± 30.8) ms vs (135.5 ± 20.3) ms, P <0.05]. Conclusion Atrial septal pacing is safe and feasible, but the operation is more difficult.