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首页> 外文期刊>PACE: Pacing and clinical electrophysiology >Low chronic pacing thresholds of steroid-eluting active-fixation ventricular pacemaker leads: a useful alternative to passive-fixation leads.
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Low chronic pacing thresholds of steroid-eluting active-fixation ventricular pacemaker leads: a useful alternative to passive-fixation leads.

机译：类固醇洗脱主动固定心室起搏器导线的慢性起搏阈值低：这是被动固定导线的一种有用替代方法。

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Active-fixation pacemaker leads enable pacing at various sites, have a low dislodgment rate, and are easier to extract than passive-fixation leads, though are usually not routinely implanted in the ventricle because of their higher pacing threshold. The long-term pacing threshold associated with an active-fixation steroid-eluting lead was prospectively measured in 18 women and 20 men. At a mean follow-up of 14 months (range 3-25 months), pacing threshold increased from 0.71 +/- 0.29 V to 0.96 +/- 0.28 V (P = 0.01) between implant and the first month of follow-up, then remained stable over time, consistently allowing the long-term programming of the ventricular output at 2.5 V, while lead impedance remained stable (from 647 +/- 161 omega at implant to 666 +/- 122 omega at last follow-up). If the long-term performance of this type of lead is confirmed, the routine implantation of ventricular steroid-eluting active-fixation leads should be considered since lead extraction has become a major concern.
机译：主动固定起搏器导线可在各个部位起搏，移动速率低，并且比被动固定起搏器更容易拔出，尽管由于起搏阈值较高，通常不常规植入心室。前瞻性测量了18位女性和20位男性中与主动固定类固醇洗脱铅相关的长期起搏阈值。在植入后至随访的第一个月之间，平均随访14个月（3-25个月），起搏阈值从0.71 +/- 0.29 V增加到0.96 +/- 0.28 V（P = 0.01），然后随着时间的推移保持稳定，始终允许在2.5 V时对心室输出进行长期编程，而引线阻抗保持稳定（从植入时的647 +/- 161Ω到最后一次随访时的666 +/- 122Ω）。如果证实了这种铅的长期性能，则应考虑常规植入心室类固醇洗脱的主动固定式铅，因为铅的提取已成为一个主要问题。

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