Table 3 SEMG findings (amplitude and firing frequency) in patients with different levator muscle function before and after surgery
Pre-operative SEMG | Pre-operative clinical parameters (levator muscle function) | Post-operative SEMG | Post-operative clinical parameters (levator muscle function) | ||||
|---|---|---|---|---|---|---|---|
Good (N = 10) | Fair (N = 23) | Poor (N = 7) | Good (N = 21) | Fair (N = 15) | Poor (N = 4) | ||
Amplitude (uV) | 300.6 ± 51.2 205–339 | 241.3 ± 38.2 200–330 | 173.7 ± 17.6 150–190 | Amplitude (uV) | 455.5 ± 26.8 410–500 | 374.5 ± 104.2 200–470 | 172.3 ± 14.6 160–189 |
Firing frequency (Hz) | 28.4 ± 1.4 27–31 | 29.7 ± 1.5 28–32 | 33.9 ± 0.9 33–35 | Firing frequency (Hz) | 26.2 ± 0.9 25–27 | 28.9 ± 2.4 26–31 | 34.5 ± 0.6 34–35 |