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The physiologic effects of multiple simultaneous electronic control device discharges.

Donald M Dawes1, Jeffrey D Ho, Robert F Reardon

  • 1Lompoc Valley Medical Center, Lompoc, CA.

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The TASER Shockwave, an area denial electronic control device, was tested for safety in humans. Multiple simultaneous discharges were reasonably tolerated, suggesting a potential risk/benefit ratio for its intended use.

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Area of Science:

  • Forensic Science
  • Biomedical Engineering
  • Emergency Medicine

Background:

  • Electronic control devices (ECDs) are used by law enforcement and military.
  • The TASER Shockwave is a novel ECD designed for area denial with multiple simultaneous discharges.
  • This study is the first to evaluate the human physiological effects of multiple simultaneous ECD discharges.

Purpose of the Study:

  • To assess the physiological effects of multiple simultaneous discharges from the TASER Shockwave device in human volunteers.
  • To evaluate the safety and tolerability of the TASER Shockwave device.
  • To determine the risk/benefit ratio for using the TASER Shockwave as an area denial tool.

Main Methods:

  • Human volunteers received two to three simultaneous 5-second discharges from the Shockwave device.
  • Physiological parameters including blood markers (pH, lactate, potassium, CK, troponin), spirometry, and electrocardiograms (ECGs) were monitored.
  • Echocardiography was used to assess cardiac rhythm during discharges.

Main Results:

  • Minor elevations in lactate and moderate increases in creatine kinase (CK) at 24 hours were observed, correlating with the number of discharges.
  • A non-statistically significant trend towards decreased minute ventilation was noted.
  • ECG changes indicated increased vagal tone, with no evidence of cardiac capture.

Conclusions:

  • Multiple simultaneous discharges from the TASER Shockwave device were reasonably tolerated by human volunteers.
  • The study suggests a potentially acceptable risk/benefit profile for the device when employed for area protection.
  • Further research may be warranted to fully elucidate long-term effects and optimize usage parameters.