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The Journal of Thoracic and Cardiovascular Surgery, Vol 82, 492-500, Copyright © 1981 by The American Association for Thoracic Surgery and The Western Thoracic Surgical Association
L Watkins Jr, M Mirowski, MM Mower, PR Reid, LS Griffith, SC Vlay, ML Weisfeldt and VL Gott
The automatic implantable defibrillator is an electronic device designed to
detect and promptly correct malignant ventricular arrhythmias. Nineteen
patients, all survivors of multiple cardiac arrests because of ventricular
arrhythmias unresponsive to therapy, have undergone implantation of the
automatic defibrillator. In seven patients who had had a previous cardiac
operation, implantation was performed through a left lateral thoracotomy. A
median sternotomy was used in five patients without a previous operation.
In six patients cardiac procedures were performed concomitantly with
defibrillator implantation. There were no operative deaths. The average
follow-up is 6 months, the longest being 14 months. Following implantation,
47 episodes of malignant ventricular arrhythmias were documented. Twenty-
six occurred spontaneously (17 of them outside the hospital); all were
corrected with a single 25 joule pulse. Seventeen of 21 arrhythmias induced
postoperatively were terminated. Although further validation is required,
this study demonstrates that the automatic defibrillator is capable of
diagnosing and terminating potentially lethal ventricular arrhythmias.
Finally, implantation can be safely accomplished in an exceedingly high
risk population.
ARTICLES
Automatic defibrillation in man. The initial surgical experience
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