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Clinical evolution of patient symptoms.
| Preoperative | Postoperative | |
|---|---|---|
| Headaches | 14 (67%) | 3 (14%) |
| Dizziness | 5 (24%) | 2 (10%) |
| Instability | 8 (38%) | 1 (5%) |
| Vestibular syndrome | 2 (10%) | 1 (5%) |
| Nystagmus | 4 (19%) | 1 (5%) |
| Ronchopathy | 2 (10%) | 0 |
| Sleep apnea syndrome | 3 (14%) | 0 |
| Paresthesia | 6 (29%) | 2 (10%) |
| Swallowing syndrome | 3 (14%) | 1 (5%) |
