Table 2 Distribution of audio-vestibular dysfunction symptoms in patients with vascular loop/vascular contact MRI
MR findings | Tinnitus | Sensory hear loss (deafness) | Vertigo | ||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Symptomatic ear (n = 42) | Asymptomatic ear | χ2 | p | Symptomatic ear (n = 34) | Asymptomatic ear | χ2 | p | With (n = 64) | Without | χ2 | p | ||||
Patient (n = 154) | Control (n = 120) | Patient (n = 162) | Control (n = 120) | Patients (n = 132) | Control (n = 120) | ||||||||||
Vascular loop | |||||||||||||||
Grade I | 31 (73.8%) | 111 (72.1%) | 75 (62.5%) | 3.79 | 0.15 | 25 (73.5%) | 115 (71%) | 75 (62.5%) | 0.72 | 0.70 | 45 (70.3%) | 88 (66.7%) | 75 (62.5%) | 2.22 | 0.33 |
Grade II | 7 (16.7%) | 39 (25.3%) | 37 (30.8%) | 8 (23.5%) | 39 (24%) | 37 (30.8%) | 18 (28.1%) | 37 (28.0%) | 37 (30.8%) | ||||||
Grade III | 4 (9.5%) | 4 (2.6%) | 8 (6.7%) | 1 (3%) | 8 (5%) | 8 (6.7%) | 1 (1.6%) | 7 (5.3%) | 8 (6.7%) | ||||||
Vascular contact | |||||||||||||||
Type I | 22 (52.4%) | 111 (72.1%) | 53 (44.1%) | 0.86 | 0.65 | 20 (58.8%) | 112 (69.1%) | 53 (44.2%) | 0.03 | 1.0 | 42 (65.6%) | 100 (75.7%) | 53 (44.2%) | 0.77 | 0.68 |
Type II | 18 (42.8%) | 38 (24.7%) | 62 (51.7%) | 13 (38.3%) | 47 (29%) | 62 (51.6%) | 20 (31.3%) | 31 (23.5%) | 62 (51.7%) | ||||||
Type III | 2 (4.8%) | 5 (3.2%) | 5 (4.2%) | 1 (2.9%) | 3 (1.9%) | 5 (4.2%) | 2 (3.1%) | 1 (0.8%) | 5 (4.2%) | ||||||