Table 1. Number of cases tested and number and percentage of cases with abnormal results from routine CSF analysis in different CNS syndromes.
| Clinical syndrome | CSF pressure | CSF WBC | CSF protein | CSF RT-PCR |
|---|---|---|---|---|
| Ischemic stroke | 0 | 0/4 (0%) | 0/4 (0%) | 0/3 (0%) |
| Encephalitis | 2/30 (6.66%) | 39/74 (52.70%) | 25/54 (46.29%) | 6/35 (17.14%) |
| Encephalopathy | 1/2 (50%) | 24/196 (12.24%) | 42/153 (29.41%) | 5/149 (3.35%) |
| Headache | 6/14 (42.86%) | 0/16 (0%) | 1/16 (6.25%) | 0/17 (0%) |
| Inflammatory syndromes | 4/13 (32.5%) | 18/48 (37.50%) | 29/48 (41.66%) | 1/31 (3.22%) |
| Meningitis | 0 | 2/2 (100%) | 1/1 (100%) | 1/2 (50%) |
| Seizures | 0 | 3/9 (33.34%) | 4/5 (80%) | 0/6 (0%) |
CSF: cerebrospinal fluid; CSF pressure: elevated CSF open pressure; CSF WBC: increased CSF white blood cells; CSF protein: increased CSF protein concentration; CSF RT-PCR: detection of severe acute respiratory coronavirus 2 in CSF by means of reverse transcriptase polymerase chain reaction.