Skip to main content

Table 1 Comparison of CSF dynamics in Groups A (Post traumatic hydrocephalus) versus B (possible iNPH who positively responded to shunt surgery)

From: Cerebrospinal fluid dynamics in non-acute post-traumatic ventriculomegaly

Mean

Group A

(N = 36)

Group B

(N = 45)

p-value

ICPb [mmHg]

9.31 ± 4.12

9.48 ± 4.57

ns

Rout [mmHg/min/ml]

13.53 ± 5.21

19 ± 8.91

p < 0.001

AMPb [mmHg]

0.55 ± 0.39

1.02 ± 0.72

p < 0.05

dAMP [mmHg]

1.58 ± 1.21

2.76 ± 1.50

p < 0.001

Slow [mmHg]

0.66 ± 0.68

1.26 ± 1.5

ns

AMP-P slope

0.09 ± 0.05

0.14 ± 0.08

p < 0.05

Elasticity [1/ml]

0.19 ± 0.13

0.19 ± 0.1

ns

RAPb

0.57 ± 0.18

0.38 ± 0.21

ns

RAPinf

0.95 ± 0.07

0.92 ± 0.075

ns

  1. Results are shown as mean ± SD. ICPb: Intracranial pressure at baseline. Rout: resistance to out flow. AMP: fundamental pulse amplitude of ICP. dAMP: AMP plateau—AMP baseline. Slow: magnitude of slow waves of ICP. AMP-P slope: slope of the line derived from ICP-AMP linear regression. Elasticity: [1/ml]. RAPb: compensatory reserve index (moving correlation coefficient between ICP and AMP) at baseline. RAPinf: RAP during infusion
  2. ns not significant
Back to article page

Fluids and Barriers of the CNS

ISSN: 2045-8118