Taser blunt probe dart-to-heart distance causing ventricular fibrillation in pigs.

Wu, Jiun-Yan; Sun, Hongyu; O'Rourke, Ann P; Huebner, Shane M; Rahko, Peter S; Will, James A; Webster, John G · IEEE Trans Biomed Eng · 2008

basic_science · Level V

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Abstract

The maximum distance between the heart and a model Taser stimulation dart, called the dart-to-heart distance, at which the Taser can directly cause ventricular fibrillation (VF), was measured in pigs. A 9-mm-long blunt probe was advanced snugly through the surrounding tissues toward the heart. Five animals [pig mass=61.2+/-6.23 standard deviation (SD) kg] for ten dart-to-heart distances where the Taser caused VF were tested. The dart-to-heart distances where the Taser caused VF of the first stimulation site ranged from 4 to 8 mm with average 6.2 mm+/-1.79 (SD) and of the second stimulation site ranged from 2 to 8 mm with average 5.4 mm+/-2.41 (SD). The results help inform the evolving discussion of risks associated with Tasers.

Medical subject headings