Demographic and clinical data at the time of intracranial pressure monitoring
| Total | Group 1 | Group 2 | Group 3 | |
|---|---|---|---|---|
| Data presented as absolute numbers. The percentages are given in parenthesis and represent the proportions of numbers within each group. ICP, intracranial pressure. Group 1, “normal” mean ICP; group 2, “low” mean ICP; group 3, “high” mean ICP. | ||||
| Total number of patients | 69 | 46 | 14 | 9 |
| Male/female | 40/29 | 29/17 | 7/7 | 4/5 |
| Age (months) at ICP monitoring | ||||
| Median (range) | 66 (12 to 358) | 65 (12 to 358) | 93 (20 to 255) | 46 (21 to 234) |
| Clinical symptoms before ICP monitoring | ||||
| Headache | 41 (59) | 26 (57) | 9 (64) | 6 (67) |
| Irritability | 29 (42) | 21 (46) | 4 (29) | 4 (44) |
| Nausea | 19 (28) | 10 (22) | 3 (21) | 6 (67) |
| Lethargy | 24 (35) | 18 (39) | 3 (21) | 3 (33) |
| Epileptic seizures | 9 (13) | 5 (11) | 3 (21) | 1 (11) |
| Positional symptoms | ||||
| Relief by lying down | 15 (22) | 7 (15) | 7 (50) | 1 (11) |
| Relief by sitting up | 7 (10) | 5 (11) | 2 (14) | |
| Worsening by lying down | 5 (7) | 3 (7) | 2 (14) | |
| Worsening by sitting up | 5 (7) | 1 (2) | 4 (29) | |
| Day and night variation in symptoms | ||||
| Worst in the morning | 5 (7) | 3 (7) | 2 (22) | |
| Worst in the evening | 5 (7) | 2 (4) | 2 (14) | 1 (11) |
| Worst in the night | 6 (9) | 5 (11) | 1 (11) | |
| Clinical indications for ICP monitoring | ||||
| Clinically suspected increased ICP | 45 (65) | 33 (72) | 4 (29) | 8 (89) |
| Clinically suspected reduced ICP | 24 (35) | 13 (28) | 10 (71) | 1 (11) |
| Mean ICP during sleep | ||||
| <10.0 mm Hg | 37 (54) | 24 (52) | 13 (93) | |
| 10.0 to 15.0 mm Hg | 28 (41) | 22 (48) | 1 (7) | 5 (56) |
| >15.0 mm Hg | 4 (6) | 4 (44) | ||
| Mean ICP during the awake state | ||||
| <10.0 mm Hg | 56 (81) | 41 (89) | 13 (93) | 2 (22) |
| 10.0 to 15.0 mm Hg | 8 (12) | 5 (11) | 1 (7) | 2 (22) |
| >15.0 mm Hg | 5 (7) | 5 (56) | ||
| Outcome after management | ||||
| Relief of symptoms | 29 (42) | 16 (35) | 6 (43) | 7 (78) |
| Lasting and unchanged symptoms | 40 (58) | 30 (65) | 8 (57) | 2 (22) |