Table 2 Comparison between grades of papilledema as regards TCD parameters
| Â | Grade 1 (n = 7) | Grade 2 (n = 14) | Grade 3 (n = 9) | Grade 4 (n = 6) | Grade 5 (n = 4) | p value | |
|---|---|---|---|---|---|---|---|
PSV | Range | 78.8–87.3 | 76.5–117.6 | 94.8–119.81 | 118.7–138.7 | 132.6–141.1 | 0.012* |
Mean | 81.7 | 90.8 | 101.9 | 132.4 | 136.5 | ||
± SD | 3.8 | 10.1 | 90.1 | 7.7 | 3.7 | ||
EDV | Range | 30–48.9 | 24–49.5 | 27–42.6 | 25.5–45.6 | 24.7–28.8 | 0.102 |
Mean | 36.2 | 35.6 | 34.5 | 30.1 | 26.8 | ||
± SD | 6.3 | 7.7 | 5.2 | 7.7 | 2.3 | ||
RI | Range | 0.4–0.7 | 0.5–0.7 | 0.6–0.7 | 0.6–0.8 | 0.8–0.8 | 0.025* |
Mean | 0.6 | 0.6 | 0.7 | 0.8 | 0.8 | ||
± SD | 0.1 | 0.1 | 0.1 | 0.1 | 0.0 | ||
PI | Range | 0.5–1.0 | 0.6–1.3 | 0.8–1.2 | 0.6–1.4 | 1.3–1.4 | 0.016* |
Mean | 0.8 | 0.9 | 1.0 | 1.1 | 1.3 | ||
± SD | 0.1 | 0.2 | 0.1 | 0.3 | 0.1 | ||