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Table 2 Sub-group analysis of laryngoscopy attempts, complications and on scene time

From: Implementing new advanced airway management standards in the Hungarian physician staffed Helicopter Emergency Medical Service

 

Summary

Trauma

Medical

n: 433 (100%)

All trauma

Isolated head injury

Burns

Hanging

Other

All medical

Stroke

Intoxication

Status epilepticus

Ventilatory failure

Post - ROSC

Other

65.1%

19.1%

6.7%

2.1%

37.2%

34.9%

8.3%

7.2%

5.1%

4.2%

3.2%

6.9%

n

%

n

%

n

%

n

%

n

%

n

%

n

%

n

%

n

%

n

%

n

%

n

%

n

%

Attempts at laryngoscopy

1th

413

95.4

269

95.4

80

96.4

27

93.1

9

100

153

95.0

144

95.4

36

100

28

90.3

21

95.5

18

100

12

85.7

29

96.7

2th

15

3.5

10

3.5

3

3.6

1

3.4

  

6

3.7

5

3.3

  

2

6.5

1

4.5

  

1

7.1

1

3.3

3th

1

0.2

1

0.4

      

1

0.6

              

Failed

4

0.9

2

0.7

  

1

3.4

  

1

0.6

2

1.3

  

1

3.2

    

1

7.1

  

Complications

Hypotension

35

8.1

23

8.2

4

4.8

3

10.3

2

22.2

14

8.7

12

7.9

  

4

12.9

3

13.6

4

22.2

1

7.1

  

Desaturation

35

8.1

19

6.7

4

4.8

1

3.4

1

11.1

13

8.1

16

10.6

4

11.1

  

3

13.6

2

11.1

4

28.6

3

10.0

Aspiration

5

1.2

3

1.1

1

1.2

1

3.4

  

1

0.6

2

1.3

        

2

14.3

  

Bleeding

5

1.2

2

0.7

1

1.2

    

1

0.6

3

2.0

  

1

3.2

    

2

14.3

  

Misplacement

3

0.7

3

1.1

2

2.4

    

1

0.6

              

Hypertension

3

0.7

1

0.4

1

1.2

      

2

1.3

1

2.8

        

1

3.3

Dental injury

2

0.5

1

0.4

      

1

0.6

1

0.7

        

1

7.1

  

Bradycardia

2

0.5

1

0.4

      

1

0.6

1

0.7

    

1

4.5

      

On scene time (hh:mm)

Mean

0:49

0:47

0:46

0:49

0:44

0:53

0:53

0:50

0:51

0:59

0:54

0:45

0:59

Standard deviation

0:14

0:12

0:13

0:11

0:11

0:12

0:16

0:16

0:13

0:18

0:18

0:12

0:18

Minimum

0:15

0:20

0:20

0:25

0:31

0:21

0:15

0:20

0:20

0:32

0:30

0:15

0:35

Maximum

1:50

1:32

1:32

1:17

1:01

1:31

1:50

1:21

1:23

1:50

1:23

1:04

1:49