Choice of the optimum pulse duration for precordial cardiac pacing: a theoretical study.
Choice of the optimum pulse duration for precordial cardiac pacing: a theoretical study.
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心前区心脏起搏最佳脉冲持续时间的选择：理论研究。
DOI：
10.1111/j.1540-8159.1985.tb05906.x
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发表时间：
1985
期刊：
影响因子：
--
通讯作者：
Aronson,AL
中科院分区：
文献类型：
--
作者：
Geddes,LA;Babbs,CF;Voorhees3rd,WD;Foster,KS;Aronson,AL
In precordial pacing with skin‐surface electrodes, the goal is to excite the ventricles with minimal stiniuiation of overlying tissues. A theoretical analysis is presented to identify the relevant factors; the two most important are electrode location and pulse duration. Using the basic law of stimulalion, we developed a model which indicates that the optimum pulse duration for the closed‐chest pacing pulse is one that is long with respect to the membrane time constant of cardiac muscle. Current‐versus‐duration curves are presented for pacing and pain, based on experimentally obtained data. For pacing with minimum pain, the optimum stimulus duration was found to be about 10 ms.
