Hennepin County Medical Center, Minneapolis, MN 55415, United States.
Forensic Sci Int. 2011 Jan 30;204(1-3):50-7. doi: 10.1016/j.forsciint.2010.05.003.
The conducted electrical weapon (CEW) is used by law enforcement to control potentially violent people. Much of the research in CEW safety has focused on the TASER X26, which uses a single deployment cartridge. New Generation CEW (NGCEW) technology has been developed that uses a different circuit and multiple cartridges that can be simultaneously deployed. The objective of this study is to examine the cardiovascular effects of the NGCEW in different deployment possibilities.
This was a prospective study of human subjects during NGCEW training courses. Subjects received a NGCEW probe deployment to the frontal torso in 1 of 3 configurations: 2, 3,or 4 embedded probes and then underwent a 10-s exposure. Before and after vital signs, electrocardiograms (ECGs), and serum troponin I values were obtained. Real-time echocardiography was utilized before, during and after the exposure to evaluate heart rate and rhythm.
Initially, a 1st version NGCEW (NGCEWv1) that was in the final stages of manufacturer verification was used at the training courses. It had not been publicly released. During a NGCEWv1 exposure with 2 probes, there was an apparent brief episode of cardiac capture. Testing was halted and the manufacturer was notified. The device was redesigned and the study continued when a redesigned, 2nd version (NGCEWv2) was used. The NGCEW1 was studied in 8 subjects. The NGCEWv2 was studied in 45 subjects with no evidence of cardiac capture. There were no important post-exposure vital sign, troponin I or ECG changes found in any volunteers.
An apparent brief myocardial capture event occurred with the NGCEWv1. This device was not released and was redesigned. The NGCEWv2 appears to exhibit a reasonable degree of cardiac safety with frontal torso exposures and multiple probe combination configurations.
执法部门使用电击枪（CEW）来控制可能具有暴力倾向的人员。CEW 安全性的大部分研究都集中在 TASER X26 上，该设备使用单个部署弹夹。现已开发出新一代 CEW（NGCEW）技术，该技术使用不同的电路和多个可同时部署的弹夹。本研究的目的是研究 NGCEW 在不同部署可能性下对心血管的影响。
这是一项对 NGCEW 培训课程中人类受试者的前瞻性研究。受试者在前胸部以 1 种 3 种配置中的 1 种接受 NGCEW 探头部署：2 个、3 个或 4 个嵌入式探头，然后进行 10 秒暴露。在暴露前后，获取生命体征、心电图（ECG）和肌钙蛋白 I 值。在暴露前、暴露中和暴露后使用实时超声心动图评估心率和节律。
最初，在培训课程中使用了处于制造商验证最后阶段的 1 代 NGCEW（NGCEWv1）。它尚未公开发布。在使用 2 个探头进行 NGCEWv1 暴露时，出现了明显的短暂心脏捕获期。测试停止并通知制造商。该设备经过重新设计，当使用重新设计的第 2 代（NGCEWv2）时，研究继续进行。NGCEW1 在 8 名受试者中进行了研究。NGCEWv2 在 45 名受试者中进行了研究，没有发现心脏捕获的重要迹象。在任何志愿者中，都没有发现暴露后重要的生命体征、肌钙蛋白 I 或心电图变化。
在 NGCEWv1 中出现了明显的短暂心肌捕获事件。该设备未发布并已重新设计。NGCEWv2 在正面胸部暴露和多个探头组合配置下似乎具有合理程度的心脏安全性。
