SAEM MK63 Thoracic Discharge


Cook County Electrical


 Trauma Study Group


Presented at the Society for Academic Emergency Medicine Annual Meeting

in Chicago, May 16-19, 2007

Poster Session:


Valentino, D., R.J. Walter, K. Nagy, A. Dennis, J. Winners, F. Bokhari, D. Wiley, K. Joseph, and R. Roberts.  2007.  Acad. Emerg. Med., 14:S140.

Poster as PDF file:  Valentino SAEM_thoraxMK63_poster.pdf


Study Methods 

  • Ten Yucatan mini-pigs, 6 experimentals and 4 sham controls, were anesthetized with ketamine, xylazine, and glycopyrrolate. 
  • Experimentals were exposed to two 40 sec discharges from an EID device (MK63, Aegis Indus.) over the left thorax. 
  • ECGs, troponin I, blood gases, and lactate levels were obtained pre-exposure, at 5, 15, 30, 60 min, 24, 48 and 72 hrs post-discharge.



  • No evidence of acute or delayed cardiac arryththmia or biochemical evidence of cardiac injury seen. 
  • No electrolyte abnormalities were detected. 
  • Even lengthy discharges from the MK63 do not cause significant cardiac injury or acid-base or electrolyte disturbances. 


This study has been published in the May 2007 issue of the Journal of Trauma



The authors thank Avocet Polymer Technologies for sponsoring this project.

None of the investigators have any financial interest in any stun device manufacturer. 


Questions or comments?  Contact:  cookcountytrauma AT

   counter create hit 

Reality is that which, when you stop believing in it, doesn't go away.

—Philip K. Dick