PMID: 8953401Nov 1, 1996Paper

Short-term and long-term outcome of left heart function after cardioverter defibrillator implantation

Journal of cardiology
K TakeichiS Hosoda

Abstract

The usefulness and problems of implantable cardioverter defibrillators (ICD) were examined in patients with reduced heart function. Of 36 patients who received ICD for refractory ventricular tachycardia (VT) or ventricular fibrillation (VF), VT and/or VF was associated with underlying heart disease in 26 patients, and VF without underlying heart disease in 10. Of the former 26 patients, 13 with left ventricular ejection fraction (LVEF) of less than 30% were assigned to group A, 13 with LVEF of greater than 30% to group B, and the other 10 with idiopathic VF to group C. Intraoperative death, cardiac death due to heart failure, sudden death, functional status of the ICD, exacerbation of heart failure symptoms and complications were compared between the three groups. There were no intraoperative deaths in any of the groups. During the median follow-up period of 36 +/- 22 months, there was only one sudden death in group A. There were no significant differences between the three groups. There were five cardiac deaths in group A, but none in groups B or C. The cardiac death-free rates 12, 24, and 36 months after implantation in group A were 83%, 60% and 50%, respectively. These values significantly differed from those in groups B and...Continue Reading

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