PMID: 6160497Jan 1, 1980Paper

Of pacemakers and statistics: the actuarial method extended

Pacing and Clinical Electrophysiology : PACE
J DusselI W Obel

Abstract

Pacemakers cease functioning because of either natural battery exhaustion (nbe) or component failure (cf). A study of four series of pacemakers shows that a simple extension of the actuarial method, so as to incorporate Normal statistics, makes possible a quantitative differentiation between the two modes of failure. This involves the separation of the overall failure probability density function PDF(t) into constituent parts pdfnbe(t) and pdfcf(t). The approach should allow a meaningful comparison of the characteristics of different pacemaker types.

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