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Clinical features of all 123 patients included in the study
| Perineural infiltrations | Yes 98 (79%) | No 25 (21%) |
| DGE | Yes 39 (32%) | No 84 (68%) |
| Age | 31–90 (68 ±10.9) | – |
| Gender (M/F) | 73/50 | – |
| Postoperative fistula | Yes 47 (38%) | No 76 (62%) |
| Postoperative fistula grade A | 37 (78%) | – |
| Postoperative fistula grade B | 6 (12%) | – |
| Postoperative fistula grade C | 4 (8%) | – |
| Post operative haemorrhage | Yes 19 (15%) | No 104 (85%) |
| Days of hospitalization | 8–115 (36 ±21.1) | – |
| Survival in months | 21.7 ±18.6 |
