Table 2.
Changes in main variables following IJVC according to injury severity
| Variable | All patients (n = 85) | Groups | p value | ||
|---|---|---|---|---|---|
| Sk1 (n = 24) | Sk2 (n = 37) | Sk3 (n = 24) | |||
| Δ MAP (mm Hg) | 1.08 ± 4.73 | 0.14 ± 3.24 | 0.17 ± 3.36 | 3.52 ± 6.87 | 0.034 |
| Δ ICP (mm Hg) | 5.41 ± 4.46 | 6.83 ± 6.14 | 5.69 ± 3.66 | 3.39 ± 2.41 | 0.052 |
| Δ CPP (mm Hg) | − 4.33 ± 6.51 | − 6.69 ± 6.59 | − 5.51 ± 4.64 | 0.13 ± 7.02 | 0.002 |
| Δ CBv (cm × s−1) | − 5.93 ± 8.28 | − 7.06 ± 5.71 | − 6.28 ± 9.50 | − 4.14 ± 8.78 | 0.54 |
| Δ Heart rate (bpm) | 0.58 ± 2.80 | − 0.54 ± 2.53 | 0.82 ± 2.74 | 1.44 ± 2.92 | 0.075 |
| Δ CrCP (mm Hg) | 4.54 ± 5.03 | 6.43 ± 4.42 | 5.10 ± 5.29 | 1.57 ± 4.08 | 0.007 |
| Δ RAP (mm Hg cm × s−1) | 0.03 ± 0.13 | − 0.01 ± 0.11 | − 0.00 ± 0.10 | 0.11 ± 0.17 | 0.005 |
Values are mean ± SD
ΔCBv, change in cerebral blood velocity; ΔCPP, change in cerebral perfusion pressure; ΔCrCP, change in critical closing pressure; ΔICP, change in intracranial pressure; ΔMAP, change in mean arterial blood pressure; ΔRAP, change in resistance-area product; IJVC, internal jugular veins compression; SD, standard deviation; Sk1, no surgical skull opening; Sk2, craniotomy; Sk3, decompressive craniectomy
Tukey’s post hoc test for paired comparisons with sk3 p < 0.05 or p < 0.005
Bold values are statistically significant