Table 4.
Cognitive changes after 2-year in the three leptomeningeal collateral status MCAS groups.
| Good collateral status group | 2-year follow-up | Moderate collateral status group | 2-year follow-up | Poor collateral status droup | 2-year follow-up | |
|---|---|---|---|---|---|---|
| PASAT | 36.50±2.58 | 35.88±3.10 | 31.48±1.53 | 29.63±1.31a | 29.84±1.54 | 25.42±1.88b |
| SDMT | 43.82±2.07 | 42.71±2.17 | 36.50±1.55 | 34.11±1.75a | 33.84±2.26 | 29.17±1.35b |
| VFT | 20.63±2.28 | 20.08±2.48 | 18.85±1.91 | 17.18±1.99a | 15.95±1.36 | 12.36±1.42b |
| AVLT immediate recall | 9.27±1.04 | 8.79±0.85 | 9.02±1.45 | 8.40±1.48 | 8.52±0.99 | 8.08±1.01 |
| AVLT delayed free recall | 8.35±1.07 | 8.01±1.06 | 8.08±1.47 | 7.74±1.45 | 7.83±1.05 | 7.32±1.21 |
| Stroop task | 90.71±7.21 | 89.54±6.28 | 82.89±6.29 | 80.33±5.61 | 79.91±5.01 | 72.64±4.48b |
| Stroop interference task | 44.04±5.19 | 42.58±5.19 | 39.47±3.67 | 37.62±3.86a | 37.59±3.25 | 31.56±3.02b |
VFT – verbal fluency task; SDMT – symbol-digit modalities test; AVLT – auditory verbal learning test; PASAT – paced auditory serial addition test.
a
Moderate collateral circulation baseline vs. 2-year follow-up, P<0.05;
b
Poor collateral circulation baseline vs. 2-year follow-up, P<0.05.