Table 2.
Comparison of manometry (BAP, SAP, HPZL), questionnaire (FISI, Wexner) and EMG values before implantation and 6, 12, 18 weeks and 12 months after implantation. Results are mean values
| Initial | 6 weeks | 12 weeks | 18 weeks | 12 months | |
|---|---|---|---|---|---|
| BAP (cmH2O) | 34.78 | 35.56 | 40.89 | 47.11 | 44.22 |
| SAP (cmH2O) | 63.56 | 70.00 | 79.33 | 84.11 | 85.44 |
| HPZL (cm) | 1.49 | 1.57 | 2.03 | 2.17 | 1.91 |
| FISI | 36.67 | 28.89 | 27.44 | 26.67 | 28.11 |
| Wexner | 14.33 | 10.89 | 9.67 | 8.33 | 9.89 |
| EMG amplitude (µV) | 5.80 | 7.43 | 8.63 | 9.88 | 8.50 |
| EMG frequency (Hz) | 96.78 | 91.81 | 88.24 | 85.94 | 91.00 |
BAP resting anal pressure, SAP squeeze pressure, HPZL high-pressure zone length, FISI Fecal Incontinence Severity Index, EMG electromyography