Quality of basic life support when using different commercially available public access defibrillators

Table 4 BLS with the use of an AED in scenarios with persistent asystole: optimized sequence of actions

	Time until 1st chest compression [seconds]	Time until completion of 1st rhythm analysis [seconds]	Duration of rhythm analysis [seconds]	Interval between completion of 1st rhythm analysis and start of 2nd rhythm analysis [seconds]	No-flow fraction
(A) Heartsave PAD	40 ± 2^C,E,+	39 ± 3	19 ± 2	140 ± 1^B	0.41 ± 0.01
(B) Philips HS1	26 ± 1^D,G,H,K,+	24 ± 1^D,G,H,+	10 ± 1^C,D,G,H	142 ± 1^A	0.33 ± 0.02^{C,D,E,F,G,H,+}
(C) Lifeline VIEW	33 ± 2^A,D,E,G,H,+	32 ± 2^D,E,+	12 ± 1^B,D,E,F	153 ± 0	0.36 ± 0.02^{B,D,E,F,G,H,+}
(D) Lifepak CR Plus	28 ± 2^{B,C,E,G,H,K,+}	26 ± 1^B,C,E,G,H,+	10 ± 1^B,C,G,H	125 ± 0^G	0.33 ± 0.01^B,C,E,F,G,H
(E) PowerHeart G5	34 ± 0^A,C,D,G,+	32 ± 1^C,D,+	14 ± 1^C,F	184 ± 1	0.34 ± 0.01^{B,C,D,F,G,H,+}
(F) Fred Easy Life	16 ± 2⁺	48 ± 1⁺	15 ± 1^C,E	122 ± 1^G	0.33 ± 0.01^{B,C,D,E,G,H,+}
(G) AED Plus	27 ± 2^{B,C,D,E,H,K,+}	26 ± 1^B,D,H,+	9 ± 0^B,D,H	125 ± 1^D,F	0.35 ± 0^{B,C,D,E,F,H,+}
(H) Cardiolife AED 2100	27 ± 3^B,C,D,G,K,+	25 ± 3^B,D,G,+	9 ± 0^B,D,G	128 ± 1	0.35 ± 0^B,C,D,E,F,G
(K) BLS without AED	25 ± 2^B,D,G,H				0.26 ± 0.01

The duration of the scenario was 300 seconds. Values are the mean ± standard deviation. A lack of statistical significance (p > 0.01) in comparison with a specific model is indicated by the identifying letter (A) – (I). ⁺p < 0.01 against the respective parameter in the scenarios with a standard sequence of actions.

ISSN: 1757-7241