This paper is only available as a PDF. To read, Please Download here.
Abstract
This study evaluated the energy requirements for porous electrodes implanted on the
parietal pericardium versus those for porous electrodes implanted on the epicardial
surface of the heart. Defibrillation with a 2.5-cm porous electrode implanted on the
parietal pericardium was successful in 42% of all episodes of ventricular fibrillation.
The minimal energy requirement ranged from 30–68 J, with an average of 46 J. Epicardial
defibrillation was successful in approximately 80% of all episodes. The average maximal
energy was 21.3 J. There was histological evidence of subepicardial damage in the
parietal defibrillation group. This may be related to the higher energy required to
defibrillate in this group. However, in this group frequent, large, external shocks
were required to defibrillate the dog's hearts. Theoretically, there may be some physiological
and surgical advantages to an intact pericardium. However, the high energy requirement
and the low success rate for defibrillation with a porous electrode on the parietal
pericardium negate the feaslbility of this route of defibrillation with a permanent
implantable system.
Keywords
To read this article in full you will need to make a payment
One-time access price info
- For academic or personal research use, select 'Academic and Personal'
- For corporate R&D use, select 'Corporate R&D Professionals'
Subscribe:
Subscribe to The American Journal of Emergency MedicineAlready a print subscriber? Claim online access
Already an online subscriber? Sign in
Register: Create an account
Institutional Access: Sign in to ScienceDirect
References
- Implantation of the automatic defibrillator: The subxiphoid approach.Ann Thorac Surg. 1982; 34: 515-520
- An evaluation of left intraventricular defibrillation.in: 3rd Defibrillation Conference, Purdue University, West Lafayette, IndianaSeptember 1979
- Defibrillation threshold energy and electrode size.in: 2nd Defibrillation Conference, Purdue University, West Lafayette, IndianaSeptember 1977
- A comparison of electrodes for Pervenous Defibrillation.in: Proceeding of the AAMI 12th Annual Meeting. 1976: 408
- Epicardial defibrillation with a permanent porous electrode.in: 17th Annual Meeting of Assn. for the Advancement of Medical Instrumentation (AAMI), San Francisco1982
- The Porous Surfaced electrode.J Thorac Cardiovasc Surg. 1979; 78: 281-291
- Epicardial defibrillation with a permanent porous electrode: A histopathological study.in: 4th Purdue Conference on Cardiac Defibrillation and Cardiopulmonary Resuscitation, Purdue University, West Lafayette, IndianaSeptember 1981
- The functions of the pericardium.J Physiol. 1898; 22: 43-48
- The normal pericardium.Am J Cardiol. 1970; 26: 455-465
Article Info
Publication History
Accepted:
November 5,
1984
Footnotes
☆Presented at the Fifth Purdue Conference on CPR and Defibrillation, West Lafayette, Indiana, September 25–26, 1984.
Identification
Copyright
© 1985 Published by Elsevier Inc.
