Table 3

Mean changes of ΔONSD and ΔICP in the different groups

All subjects (N=84)Normal ICP (n=66)Elevated ICP (n=18)
ΔONSD, median (IQR), mm0.11 (0.05–0.21)0.105 (0.05–0.21)0.11 (0.06–0.24)
ΔICP, median (IQR), mmH2O30 (20–40)30 (20–40)30 (20–82)
  • ΔICP, the mean changes of intracranial pressure (ICP) before and after lumbar puncture.

  • ΔONSD, the mean changes in optic nerve sheath diameter (ONSD) values measured before and after lumbar puncture.