95
ECG Analysis System
– ECG Database Test
ECG
Rhythm
Class
Rhythms
Minimum
test sample
size
Performa
nce goal
Test
sample
size
Shock
Decision
No Shock
Decision
Observed
Performance
90% One
Sided Lower
Confidence
Limit
S
H
OC
K
A
B
L
E
Coarse VF
200
>90%
sensitivity
219
213
6
97.26%
(213/219)
sensitivity
95%
Fast VT
50
>75%
sensitivity
137
111
26
81.02%
(111/137)
sensitivity
76%
N
ON
S
H
OC
K
A
B
L
E
Normal Sinus
Rhythm
100
minimum
(arbitrary)
> 99%
specificity
100
0
100
100%
(100/100)
specificity
97%
AF,SB,
SVT, heart
block,
idioventricular
PVC’s
30
(arbitrary)
> 95%
specificity
219
1
218
99.54%
(218/219)
specificity
98%
Asystole
100
> 95%
specificity
132
5
127
96.21%
(127/132)
specificity
93%
a. A Statement for Health Professionals from the AHA (American Heart Association) Task Force on AED,
Subcommittee on AED Safety and Efficacy. Automatic External Defibrillators for Public Access
Defibrillation: Recommendations for Specifying and Reporting Arrhythmia Analysis Algorithm
Performance, Incorporating New Waveforms, and Enhancing Safety. Published 1997; 95:1677-1682.
b. According to AHA Recommendations (a) and AAMI-based DF80, SVT is clearly included in the non
shockable rhythm grade.
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