E-6
PHILIPS MEDICAL SYSTEMS
E
ECG ANALYSIS PERFORMANCE
rhythm class ECG test
sample
a
size
meets AHA recommendations
b
for adult defibrillation
observed 90% one-sided
performance lower confidence limit
shockable rhythm —
ventricular fibrillation
300 sensitivity >90%
(meets AAMI DF80 requirement)
(87%)
shockable rhythm —
ventricular tachycardia
100 sensitivity >75%
(meets AAMI DF80 requirement)
(67%)
non-shockable rhythm —
normal sinus rhythm
300 specificity >99%
(meets AAMI DF80 requirement)
(97%)
non-shockable rhythm —
asystole
100 specificity >95%
(meets AAMI DF80 requirement)
(92%)
non-shockable rhythm — all
other non-shockable
rhythms
c
450 specificity >95%
(meets AAMI DF80 requirement)
(88%)
a. From Philips Medical Systems Heartstream ECG rhythm databases.
b. American Heart Association (AHA) AED Task Force, Subcommittee on AED Safety & Efficacy. Automatic External Defibrillators for Public
Access Use: Recommendations for Specifying and Reporting Arrhythmia Analysis Algorithm Performance, Incorporation of New
Waveforms, and Enhancing Safety. Circulation 1997;95:1677-1682.
c. Supraventricular tachycardia (SVT) is specifically included in the non-shockable rhythm class, in accordance with AHA recommendations
b
and the AAMI standard DF80.
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