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Table 1 BLS with the use of an AED in scenarios of persistent ventricular fibrillationThe duration of the scenario was 300 seconds

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

 

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 2nd rhythm analysis [seconds]

Perishock pause [seconds]

No-flow fraction

(A) Heartsave PAD

50 ± 3 I

47 ± 3D,I

13 ± 1B,C,D,F,G

63 ± 4D

138 ± 0C

12 ± 0+

0.51 ± 0.01C,E,G,+

(B) Philips HS1§

125 ± 2

77 ± 3C,G,H

13 ± 2A,C,D,E,F,G,H

88 ± 2C

194 ± 3

44 ± 4G

0.72 ± 0.01F

(C) Philips HS1*

103 ± 1G,+

77 ± 3B,G,H,+

10 ± 1A,B,D,E,F,H,I

90 ± 2B,+

140 ± 1A

29 ± 1E,H,+

0.52 ± 0.01A,G,+

(D) Lifeline VIEW

68 ± 3+

48 ± 2A,I,+

11 ± 1A,B,C,E,F,H,I

56 ± 3A,I,+

153 ± 3

34 ± 2E,F,+

0.61 ± 0.03+

(E) Lifepak CR Plus

81 ± 1H,+

63 ± 1 H,+

10 ± 1B,C,D,F,H,I

75 ± 1G,H,+

125 ± 1G,H,I

31 ± 1C,D,+

0.48 ± 0A,G,H,+

(F) PowerHeart G5

147 ± 1+

93 ± 1+

11 ± 1A,B,C,D,E,H

101 ± 1+

183 ± 1

38 ± 1D,+

0.71 ± 0B,+

(G) Fred Easy Life

105 ± 1C,+

74 ± 1B,C,H,+

15 ± 0A,B

80 ± 1E,H,+

124 ± 1E,H,I

46 ± 0B,+

0.50 ± 0A,C,E,+

(H) AED Plus

81 ± 3E,+

71 ± 2B,C,E,G,+

9 ± 1B,C,D,E,F,I

77 ± 2E,G,+

121 ± 1E,G,I

25 ± 1C,I,+

0.45 ± 0.01E

(I) Cardiolife AED 2100

55 ± 1A,+

41 ± 2A,D,+

7 ± 1C,D,H,I

48 ± 2+

126 ± 1E,G,H

21 ± 2H

0.37 ± 0.01

(K) BLS without AED

25 ± 2

     

0.26 ± 0.01

  1. Values are the mean ± standard deviation. The Philips HS1 asks the rescuer to press an “info button” for detailed information about chest compressions and ventilations after each shock. The scenario was run 3 times when pressing the info button§ and 3 times without pressing the button*. 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 an optimized sequence of actions