Table 1.
Frequency and characteristics of acute audiovestibular disturbance before AICA territory infarction
| Lee and Cho [15] | Kim et al. [26] | Lee et al. [10] | |
|---|---|---|---|
| Number of studied patients | 16 | 54 | 82 |
| Pattern of AICA territory infarction | |||
| Isolated AICA | 12 | 36 | 55 |
| AICA plus | 4 | 18 | 27 |
| Percentage of acute audiovestibular disturbance before VBIS | 31% (5/16) | 8% (4/54) | 16% (13/82) |
| Identification of normal MRI at the stage of isolated audiovestibular disturbance | None | Complete | Incomplete |
| Identification of CP at the stage of isolated audiovestibular disturbance | None | Complete | Incomplete |
| Identification of SNHL on PTA at the stage of isolated audiovestibular disturbance | None | Complete | Incomplete |
| Pattern of audiovestibular disturbance before VBIS | |||
| Vertigo/hearing loss/tinnitus | 3 | 3 | 3 |
| Vertigo/tinnitus | 1 | 0 | 1 |
| Vertigo/Hearing | 1 | 1 | 9 |
| Interval from audiovestibular disturbance to VBIS | 10 days | 4 days | 30 days |
| Kinetics of audiovestibular disturbance | |||
| Plus other symptoms | 0 | 0 | 0 |
| Isolated | 5 | 4 | 13 |
CP, canal paresis; AICA, anterior inferior cerebellar artery; SNHL, sensorineural hearing loss; PTA, pure tone audiogram; VBIS, vertebrobasilar ischemic stroke.