Reduction of Energy Required for Defibrillation by Delivering Shocks in Orthogonal Directions in the Dog
- 1 November 1988
- journal article
- Published by Wiley in Pacing and Clinical Electrophysiology
- Vol. 11 (11) , 1990-1995
- https://doi.org/10.1111/j.1540-8159.1988.tb06339.x
Abstract
Reduction of energy required to defibrillate (ERD) seems to represent a necessary condition for intensive development of implantable defibrillator, so as for minimization of cardiac and pulmonary damages provoked by high energy transthoracic defibrillation electric shocks. The present work describes a defibrillation method using shocks delivered in orthogonal directions and separated by a 100 ms delay. Defibrillation threshold measured with classical unidirectional shocks on 30 dogs has been found to be 286.8 +/- 22.2 joules. In the same animals, defibrillation threshold measured by use of orthogonal shocks has been found to be 101.4 +/- 14.9 joules. We conclude that this crossed shocks method leads to a substantial reduction of ERD (64%).Keywords
This publication has 7 references indexed in Scilit:
- Sudden Cardiac DeathScientific American, 1986
- Internal cardiac defibrillation in man: pronounced improvement with sequential pulse delivery to two different lead orientations.Circulation, 1986
- The automatic implantable cardioverter-defibrillator: An overviewJournal of the American College of Cardiology, 1985
- Advance prediction of transthoracic impedance in human defibrillation and cardioversion: importance of impedance in determining the success of low-energy shocks.Circulation, 1984
- Influence of cardiac fiber orientation on wavefront voltage, conduction velocity, and tissue resistivity in the dog.Circulation Research, 1979
- Directional differences of impulse spread in trabecular muscle from mammalian heart.The Journal of Physiology, 1976
- Influence of pH and hypoxia on the success of defibrillationCritical Care Medicine, 1975