Table 2 The CSFP pulse during lumbar puncture versus ICP pulse during over-night ICP monitoring
Over-night ICP monitoring* | Lumbar puncture | |||
|---|---|---|---|---|
ICP wave amplitude | CSFP wave amplitude during opening phase | CSF wave amplitude during lumbar infusion | ||
< 2 mmHg | ≥ 2 mmHg | < 4 mmHg | ≥ 4 mmHg | |
< 4 mmHg (n = 20) | 17 | 3 | 12 | 8 |
≥ 4 mmHg (n = 42) | 17 | 25 | 5 | 37 |
Statistics | Sensitivity = 60; Specificity = 85 PPV = 89; NPV = 50 | Sensitivity = 88; Specificity = 60 PPV = 82; NPV = 71 | ||