Table 1 Patient characteristics
CSF leakage-positive exams (n = 22) | CSF leakage-negative exams (n = 37) | p value | |||
|---|---|---|---|---|---|
Age (years) | 50 ± 18 (17–86) | 56 ± 19 (17–86) | 0.27 | ||
Gender (male: female) | 12: 10 | 19: 12* | 0.66 | ||
Underlying disorders | |||||
Neuropathy/neuritis | 8 | 6 | |||
Demyelination | 4 | 9 | |||
Infection | 3 | 2 | |||
Hydrocephalus | 1 | 3 | |||
Degenerative disease | 1 | 3 | |||
Others | 5 | 8 | |||
Gauge of spinal needle | 21 G | -19 | 21 G | – 18 | 0.18 |
19 G | – 1 | 19 G | – 2 | ||
23 G | – 1 | 23 G | – 6 | ||
Unknown | – 1 | Unknown | – 11 | ||
Puncture level | L3/4 | – 4 | L3/4 | – 6 | 0.69 |
L4/5 | – 12 | L4/5 | – 16 | ||
L5/S | – 0 | L5/S | – 1 | ||
Unknown | – 6 | Unknown | – 14 | ||
Duration of bed rest (hour) | 1 h | – 1 | 1 h | – 0 | 0.06 |
1.5 h | – 1 | 1.5 h | – 0 | ||
2 h | – 20 | 2 h | – 37 | ||
Duration between LP and MRM (days) | 1.8 ± 2.6 | 4.0 ± 4.3 | 0.13 | ||
Post-dural puncture headache | 3 (14%) | 5 (14%) | 0.66 | ||