Table 1 Clinical characters and offending vessels of two groups.
From: Persistent abnormal muscle response after microvascular decompression for hemifacial spasm
Group A (n = 305) | Group B (n = 21) | P value | |
|---|---|---|---|
Gender (male/female) | 136/169 | 11/10 | 0.490 |
Side (left/right) | 172/133 | 8/13 | 0.103 |
Mean age (years) | 52.9 ± 6.85 | 55.3 ± 6.32 | 0.120 |
Mean duration (months) | 23.4 ± 4.01 | 39.8 ± 9.63 | < 0.001 |
Offending vessels | |||
AICA | 113 (37.0%) | 8 (38.1%) | 0.670 |
PICA | 84 (27.5%) | 5 (23.8%) | |
AICA + PICA | 27 (8.9%) | 2 (9.5%) | |
AICA + VA | 41 (13.4%) | 3 (14.3%) | |
PICA + VA | 32 (10.5%) | 2 (9.5%) | |
VA | 6 (2.0%) | 0 | |
AICA + PICA + VA | 2 (0.7%) | 1 (4.8%) | |
