The Edinburgh University Secondary Insult Grades (EUSIG) for a Patient with Traumatic Brain Injury

mean intracranial pressure

< 20 mm Hg

0

20 - 29 mm Hg

1

30 - 39 mm Hg

2

>= 40 mm Hg

3

systolic blood pressure

<= 50 mm Hg

3

51 - 70 mm Hg

2

71 - 90 mm Hg

1

91 - 159 mm Hg

0

160 - 189 mm Hg

1

190 - 219 mm Hg

2

>= 220 mm Hg

3

mean blood pressure

<= 40 mm Hg

3

41 - 55 mm Hg

2

56 - 70 mm Hg

1

71 - 109 mm Hg

0

110 - 129 mm Hg

1

130 - 149 mm Hg

2

>= 150 mm Hg

3

mean cerebral perfusion pressure

> 60 mm Hg

0

51 - 60 mm Hg

1

41 - 50 mm Hg

2

<= 40 mm Hg

3

hypoxemia

> 8 kPa

0

7.1 - 8.0 kPa

1

6.1 - 7.0 kPa

2

<= 6.0 kPa

3

oxygen saturation

> 90%

0

86 - 90%

1

81 - 85%

2

<= 80%

3

fever

< 38°C

0

38 - 38.9°C

1

39 - 39.9°C

2

>= 40°C

3

heart rate

<= 30 beats per minute

3

31 - 40 beats per minute

2

41 - 50 beats per minute

1

51 to 119 beats per minute

0

120 - 134 beats per minute

1

135 - 149 beats per minute

2

>= 150 beats per minute

3

PaCO2

<= 2 kPa

3

2.1 - 2.5 kPa

2

2.6 - 3.0 kPa

1

3.1 - 5.9 kPa

0

6.0 - 7.9 kPa

1

8.0 - 9.9 kPa

2

>= 10.0 kPa

3

percent oxygen saturation jugular vein

<=45%

3

46 - 49%

2

50 - 54%

1

55 - 74%

0

75 - 84%

1

85 - 94%

2

>= 95%

3

oxygen extraction fraction

<= 4

1

4.1 - 8.9

0

>= 9.0

1