Table 3.
BLS with the use of an AED in scenarios of persistent ventricular fibrillation: optimized sequence of actionsThe duration of the scenario was 300 seconds
| Time until 1st chest compression [seconds] | Time until completion of 1st rhythm analysis [seconds] | Duration of rhythm analysis [seconds] | Time until 1st shock [seconds] | Interval between 1st shock and start of 2nd rhythm analysis [seconds] | Perishock pause [seconds] | No-flow fraction | |
|---|---|---|---|---|---|---|---|
| (A) Heartsave PAD | 35 ± 2B,C,E,G | 34 ± 2 B,C,E | 14 ± 1 B,C,E,F | 47 ± 2 F | 137 ± 1 B | 3 ± 1 D,+ | 0.36 ± 0.01B,C,D,E,F,G,H,+ |
| (B) Philips HS1 | 31 ± 2A,D,E,G,H,K,+ | 28 ± 2 A,D,E,G,H,+ | 14 ± 2 A,C,E,F,G | 30 ± 2 E,G,H,+ | 140 ± 0 A | 10 ± 1 E,H,+ | 0.34 ± 0.01A,C,D,E,F,G,H,+ |
| (C) Lifeline VIEW | 41 ± 1 A,+ | 35 ± 1 A,E,+ | 11 ± 2 A,B,D,E,G,H | 39 ± 1 D,+ | 154 ± 1 | 18 ± 1 F,G,+ | 0.36 ± 0.01A,B,D,E,F,G,H,+ |
| (D) Lifepak CR Plus | 28 ± 2B,E,G,H,K,+ | 27 ± 2 B,E,G,H,+ | 10 ± 1 B,C,E,G,H | 38 ± 3 C,E,+ | 125 ± 1 F,G,H | 1 ± 1 A,+ | 0.32 ± 0.01A,B,C,E,F,H,+ |
| (E) PowerHeart G5 | 34 ± 1A,B,D,G,H,+ | 30 ± 2 A,B,C,D,G,+ | 12 ± 1 A,B,C,D,F,G,H | 32 ± 1 B,D,G,H,+ | 185 ± 2 | 13 ± 2 B,G,H,+ | 0.33 ± 0.01A,B,C,D,F,G,H,+ |
| (F) Fred Easy Life | 17 ± 2+ | 49 ± 1+ | 15 ± 1 A,B,E | 51 ± 2 A,+ | 124 ± 1 D,G,H | 19 ± 1 C,G,+ | 0.35 ± 0.01A,B,C,D,E,G,H,+ |
| (G) AED Plus | 33 ± 2A,B,D,E,H,+ | 27 ± 2 B,D,E,H,+ | 10 ± 1 B,C,D,E,H | 31 ± 2 B,E,H,+ | 125 ± 1 D,F,H | 18 ± 1 C,E,F,+ | 0.37 ± 0.02A,B,C,E,F,H |
| (H) Cardiolife AED 2100 | 27 ± 1B,D,E,G,K,+ | 23 ± 0 B,D,G,+ | 8 ± 1 C,D,E,G | 26 ± 1 B,E,G,+ | 127 ± 2 D,F,G | 11 ± 1 B,E | 0.35 ± 0.02A,B,C,D,E,F,G |
| (K) BLS without AED | 25 ± 2B,D,H | 0.26 ± 0.01 |
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