. 2010 Feb 12;7:5. doi: 10.1186/1743-8454-7-5

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