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Table 1: Pressure measurements, DENSE pontine displacements, and times between measurements in patients with IIH pre-LP and post-LP
Patient No. OP, cm H₂0 CP, cm H₂0 OP to CP Pressure Change, cm H₂0 OP to CP Pressure Change, % CSF Removed, cc Pre-LP DENSE, mm Post-LP DENSE, mm % Change Pre-LP DENSE to OP Time, min CP to Post-LP DENSE Time, min
1 26 15 11 −42 11 0.124 0.134 8 56 17
2 41 18 23 −56 16 0.022 0.059 164 95 48
3 36 17 19 −53 20 0.071 0.097 36 67 18
4 46 19 27 −59 22 0.047 0.087 86 204 35
5 40 16 24 −60 15 0.105 0.119 14 51 34
6 33 16 17 −52 15 0.037 0.051 39 39 21
7 35 15 20 −57 15 0.024 0.052 113 72 10
8 32 19 13 −41 14 0.078 0.085 8 41 30
9 49 26 23 −47 12 0.035 0.054 54 35 26
Note:—CP indicates closing pressure; OP, opening pressure.

Patient No.	OP, cm H₂0	CP, cm H₂0	OP to CP Pressure Change, cm H₂0	OP to CP Pressure Change, %	CSF Removed, cc	Pre-LP DENSE, mm	Post-LP DENSE, mm	% Change	Pre-LP DENSE to OP Time, min	CP to Post-LP DENSE Time, min
1	26	15	11	−42	11	0.124	0.134	8	56	17
2	41	18	23	−56	16	0.022	0.059	164	95	48
3	36	17	19	−53	20	0.071	0.097	36	67	18
4	46	19	27	−59	22	0.047	0.087	86	204	35
5	40	16	24	−60	15	0.105	0.119	14	51	34
6	33	16	17	−52	15	0.037	0.051	39	39	21
7	35	15	20	−57	15	0.024	0.052	113	72	10
8	32	19	13	−41	14	0.078	0.085	8	41	30
9	49	26	23	−47	12	0.035	0.054	54	35	26