Why the study?
Does a sharp precordial thump terminate ventricular tachycardia in patients with coronary heart disease?
Does a sharp precordial thump terminate ventricular tachycardia in patients with coronary heart disease?
A precordial thump can effectively terminate ventricular tachycardia, likely by providing a low-energy current that depolarizes re-entry pathways.
Precordial thump success in this case series warrants prospective trials; should not change practice for VT termination.
A sharp precordial thump was employed to terminate 12 episodes of ventricular tachycardia (VT) in five patients with coronary heart disease. A precordial thump, through electromechanical transduction, provides a low energy current that depolarizes a re-entry pathway, the probable basis for most cases of clinical VT. Indeed, analysis of cardioversion energies for VT has demonstrated that 93 per cent of episodes are reversed with energies of 10 w sec or less. Chest thump is an important maneuver for treating cardiac arrest initiated by VT.
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Pennington et al. (1970) studied this question.
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