Use of the elective replacement indicator in predicting time of automatic implantable cardioverter-defibrillator battery depletion.

Pacing and Clinical Electrophysiology : PACE
D AaaronsE Veltri

Abstract

The elective replacement indicator (ERI) of an automatic implantable cardioverter-defibrillator (AICD) is intended to be utilized as strict criteria for the appropriate timing of pulse generator replacement. The manufacturer's newest recommendations suggest replacement within 3 months post-ERI attainment and this applies to both AID-B units and the latest Ventak models currently being implanted with expectations or increased battery longevity. Twelve patients with the AID-B model were prospectively evaluated in regard to (a) time from attainment of ERI to generator exchange and (b) total battery life with respect to the presence or absence of spontaneous discharges. In the overall group, the ERI was reached at 18.9 +/- 3.9 months (mean +/- standard deviation). The time from ERI attainment to generator exchange due to battery depletion was 8.1 +/- 5.1 months, and total battery life was 27.3 +/- 3.1 months. In the group with spontaneous discharges, the duration of time (months) post-ERI to generator exchange was 5.7 +/- 2.6 but was 11.4 +/- 6.1 in the others (P = 0.052); battery life was 25.7 +/- 2.4 and 29.4 +/- 2.7, respectively (P = 0.03). We conclude that the current ERI recommendation seems overly conservative in planning ge...Continue Reading

References

Mar 1, 1988·Pacing and Clinical Electrophysiology : PACE·E P VeltriM Mirowski
May 1, 1988·Pacing and Clinical Electrophysiology : PACE·A E EpsteinD C McGiffin
Aug 1, 1985·Journal of the American College of Cardiology·M Mirowski

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Citations

Dec 5, 2009·Heart Rhythm : the Official Journal of the Heart Rhythm Society·Beat Andreas SchaerStefan Osswald
Jun 1, 1992·The Annals of Thoracic Surgery·J J CurtisG C Flaker
Jul 8, 2015·Circulation. Arrhythmia and Electrophysiology·Dominic A M J TheunsLuc Jordaens

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