Table 3 Comparison between the largest cohorts of PCNSV.
 | Mayo cohort4 | French cohort5 | Sundaram et al.10 | AIIMS cohort |
---|---|---|---|---|
Total cases | 163 | 112 | 45 | 82 |
Median age (years) | 48 | 47 | 36 | 28.6 |
Sex (M:F) | 78:89 | 60:52 | 31:14 | 68:14 |
Most common symptom | Headache (59.5%) | Motor deficit | Hemiparesis | Seizures (70.7%) |
Abnormal DSA | 113/163 (69.3) | 74/95 (78) | 30/42 (71) | 45/46 (97.8) |
Abnormal biopsy (%) | 58/81 (72) | 33/53 (62) | 19/29 (66) | 50/56 (89.3) |
Abnormal CSF (%) | 117/126 (93) | 73/104 (70) | 25/45 (60) | 42/48 (87.5) |
Median mRS | Â | 2 | 2 | 2 |
Good functional outcome | mRS 0–3 | mRS 0–2: 63/112 56% | mRS 0–2: 33/45 77% | mRS 0–2: 30/46 65.2% |
Mortality (%) | 25/163 (15) | 9/112 (8) | 7/45 (16) | 4/46 (8.5%) |