All (n=43) | Idiopathic (n=20) | SID (n=23) | p-value | |
---|---|---|---|---|
Abnormal MRN findings,a n (%) | 30/41 (73.2) | 10/18 (55.5) | 20/23 (86.9) | 0.024 |
T2-weighted high signal lesions | 14 (34.1) | 5 (27.8) | 9 (39.1) | 0.324 |
Pseudotumoural lesions | 3 (7.3) | 0 | 3 (13) | 0.094 |
Arachnoiditis | 7 (17.1) | 3 (16.7) | 4 (17.4) | 0.832 |
Dilatation of ventricles | 2 (4.9) | 2 (11.1) | 0 | 0.120 |
Myelitis | 3 (7) | 0 | 3 (13) | 0.094 |
Vasculitisb | 2 (4.9) | 0 | 2 (8.7) | 0.177 |
ICU, n (%) | 13 (30.2) | 6 (30) | 7 (30.4) | 0.975 |
Treatment, n (%) | 37 (86) | 15 (75) | 22 (95.7) | 0.051 |
Steroids | 29 (67.4) | 7 (35) | 22 (95.7) | <0.001 |
Antibiotics | 22 (51.1) | 11 (55) | 11 (47.8) | 0.451 |
Antituberculous therapy | 6 (13.9) | 2 (10) | 4 (17.4) | 0.485 |
Acyclovir IV infusion | 15 (34.9) | 10 (50) | 5 (21.7) | 0.052 |
Follow up, median (range) | 32.5 (1–73) | 19 (1–60) | 38 (14–73) | 0.250 |
Chronicc/recurrent meningitis, n (%) | 15 (34.9) | 6 (30) | 9 (39.1) | 0.531 |
Death, n (%) | 1 (2.3) | 1 (5) | 0 | 0.278 |
↵aBrain MRN was performed in 41 patients only.
↵bVasculitis refers to small cortical and subcortical lesions that were hypointense in T1-weighted images (with or without gadolinium enhancement) and hyperintense in T2, fluid-attenuated inversion recovery (FLAIR) and diffusion-weighted (DW) imaging.
↵cChronic meningitis was defined as meningitis lasting 4 weeks or longer.
ICU = intensive care unit; IV = intravenous; MRN = magnetic resonance neurography; SID = systemic inflammatory disorders