Author + information
- Received January 10, 1990
- Revision received March 21, 1990
- Accepted April 13, 1990
- Published online October 1, 1990.
- Jack Kron, MD, FACC§,1,
- Ronald P. Oliver, BS1,
- Stephan Norsted, PhD*,1 and
- Michael J. Silka, MD, FACC1
- ↵§Address for reprints: Jack Kron, MD, Division of Cardiology, L-462. Oregon Health Sciences University, 3181 Southwest Sam Jackson Park Road. Portland, Oregon 97201-3098.
An international survey identified 40 patients <20 years old who underwent surgical implantation of an automatic implantable cardioverter-defibrillator (AICD). There was a history of aborted sudden cardiac death or sustained ventricular tachycardia in 92.5% of these patients. Twenty-two patients (55%) had structural heart disease; dilated and hypertrophic cardiomyopathy were the most common diagnoses. Eighteen patients (45%) had primary electrical abnormalities including seven with the congenital long QT syndrome. There were no perioperative deaths associated with device implantation. Concomitant drug therapy was administered to 75% of the patients.
Defibrillator discharge occurred in 70% of the patients, with 17 patients (42.5%) receiving at least one appropriate shock. There were two sudden and two nonsudden deaths at 28.2 months' median follow-up. Sudden death-free survival rates by life table analysis at 12 and 33 months were 0.94 and 0.88, respectively. Total survival rates at 12 and 33 months were 0.94 and 0.82, respectively. The AICD represents an effective treatment approach for young patients with life-threatening ventricular tachyarrhythmias.
- Received January 10, 1990.
- Revision received March 21, 1990.
- Accepted April 13, 1990.
- American College of Cardiology Foundation