Rey J L, el Ghelbazouri F, Tribouilloy C
Cardiology Department, University Hospital, Amiens, France.
Pacing Clin Electrophysiol. 1996 Nov;19(11 Pt 2):1777-9. doi: 10.1111/j.1540-8159.1996.tb03223.x.
A new mode of biphasic pacing was used in 26 patients to assess the feasibility of atrial pacing by means of the floating atrial ring electrodes of a single lead VDD permanent pacing system. During implantation, atrial pacing was possible in 25 patients with a 1-ms total pulse duration, a mean atrial threshold of 1.70 +/- 0.60 V (range, 0.6-3.0), and a mean diaphragmatic threshold of 6.7 +/- 2.5 V (range, 2.5-10.0). At 3 months, the atrial threshold had increased beyond 4.8 V in three patients. In the 22 other patients, the mean atrial threshold was 2.2 +/- 0.5 V (range, 1.50-3.50) in the supine position and 2.5 +/- 0.8 V (range, 1.5-4.8) in the sitting position. Stable atrial capture without diaphragmatic stimulation was achieved in 76% of patients.
对26例患者采用一种新的双相起搏模式，以评估通过单导联VDD永久起搏系统的漂浮心房环电极进行心房起搏的可行性。植入过程中，25例患者能够进行心房起搏，总脉冲持续时间为1毫秒，平均心房阈值为1.70±0.60伏（范围0.6 - 3.0伏），平均膈肌阈值为6.7±2.5伏（范围2.5 - 10.0伏）。3个月时，3例患者的心房阈值升高超过4.8伏。在其他22例患者中，仰卧位时平均心房阈值为2.2±0.5伏（范围1.50 - 3.50伏），坐位时为2.5±0.8伏（范围1.5 - 4.8伏）。76%的患者实现了稳定的心房夺获且无膈肌刺激。
