摘要
对１１７例安装不同品牌、型号起搏器的患者进行长期随访观察，探讨低能量起搏的安全性及程控计算方法。在安装起搏器２个月～１２年后测定起搏阈值，结果为２．４３±０．７５Ｖ、０．１４±０．１０ｍｓ，同时将脉宽设置为阈值的２倍、３倍或更多。１５例经１．１～４．３年的随访，再次重复测定阈值（８例增加、４例下降、３例不变），并调整相应参数。１１７例患者的随访时间为１～６年，此间均未发现起搏失效。由此认为起搏阈值设置为能量阈值的３～４倍是安全的。
Various model pacemakers were implanted with 117 cases. The capture threshold was 2.43±0.75 V (pulse amplitude) and 0.14±0.10 ms (pulse width) after implanting for 2 months to 12 years. Then, The pulse width was set up two to three or more times of capture threshold. The capture threshold was measured repeatly after 1.1～4.3 years in 15 patients. No pacing failure was found in all patients in the following period. We recommed that a 3～4 fold margin of safety for capture is available based upon the deliveried pulse energy.
出处
《中国心脏起搏与心电生理杂志》
1998年第1期26-27,共2页
Chinese Journal of Cardiac Pacing and Electrophysiology
