The electrophysiology of electrocution

Electrocution is a death caused by an application of electrical current to the human body. Our present understanding electrocution—as induction ventricular fibrillation (VF)—followed nearly century-long path misunderstandings and speculation primarily focused on hypotheses asphyxia as well central nervous system trauma. It hard for us today appreciate past mystery unexpected sudden usually bereft visible Even today, false dogma exists that direct-current shocks can cause asystole instead VF. A lightning discharge (up 500 megavolts) differentiated because it substantial acute chronic neural effects leading other cardiac arrest rhythms. The heart exquisitely sensitive alternating currents, VF be induced with currents one-eighth required mere pacing. Because these low this effect obtains only in TQ interval, low-power electrocution does not involve vulnerable period. If strong enough electrocute, generally will do so 1–2 seconds; longer tend more dangerous. Regardless concomitant drug dosing, rhythm still VF, suggesting stand-alone death; potentiate drug. experimental clinical data supporting mechanism are provided.