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Neurological deficits before and after surgery (64 cases).
| Complication | Pre-operation | Post-operation | ||
|---|---|---|---|---|
| Aggravation | New-onset | Total | ||
| Hearing dysfunction | 32 | 0 | 1 | 1 (1.6%) |
| Dysphagia | 36 | 13 | 13 | 26 (40.6%) |
| Hoarseness | 26 | 5 | 13 | 18 (28.1%) |
| Tongue deviation | 28 | 2 | 5 | 7 (10.9%) |
| Facial paralysis | 9 | 1 | 9 | 10 (15.6%) |
