Study of the Long-Term Results of Decompressive Craniectomy after Severe Traumatic Brain Injury Based on a Series of 60 Consecutive Cases
Table 1
Patient characteristics in group 1 and group 2.
Group 1
Group 2
Total
value
Number
Mean
Number
Mean
Number
Mean
%
Age (years)
≤15 years
5
31.5
3
33.5
8
33.0
13.3
0.800ω
16–30 years
14
7
21
35.0
>30 years
21
10
31
51.7
Gender
Male
31
NA
15
NA
46
NA
76.7
0.910ψ
Female
9
5
14
23.3
Initial Glasgow score
3 to 5
15
7.22
11
7.25
26
7.23
43.4
0.540ω
6 to 8
14
3
17
28.3
>8
11
6
17
28.3
Preoperative pupillary abnormality
No
23
NA
3
NA
26
NA
43.3
0.031 ψ
Unilateral dilated
11
10
21
35
Bilateral dilated (absent corneal reflex)
6 ()
7 ()
13 ()
21.7 (8.3)
Multiple trauma
Yes
17
NA
9
NA
26
NA
43.3
No
23
11
34
56.7
Circumstances of trauma
Road accident
26
NA
10
NA
36
NA
60.0
NA
Fall from a great height
3
5
7
11.7
Fall from a small height
11
5
17
28.3
Initial CT analysis of the lesions according to the Marshall classification
I
14
NA
0
NA
14
NA
23.3
0.003 ω
II
12
0
12
20.0
I + II
26
0
26
43.3
III
1
0
1
1.7
IV
13
4
17
28.3
III + IV
14
4
18
30.0
Evacuated mass
0
16
16
26.7
Interval between trauma and decompressive craniectomy
<6 h
4
2.35 days
16
0.55 days
20
1.75 days
33.3
<0.001 ω
6 h to 24 h
7
0
7
11.7
24 h to 7 days
26
4
30
50.0
>7 days
3
0
3
5.0
Preoperative characteristics of patients in group 1 and group 2 are expressed by number in each category and the mean value or percentage with respect to the total sample size (%). Values for the 2 groups were compared by statistical tests evaluating the value ( < 5%). Welch -test; Mann-Whitney test; Chi-square test. MVA: motor vehicle accident; VKA: vitamin K antagonist; PAI: platelet aggregation inhibitor; NA: not applicable. The bold font highlights the most significant parameters.
