Introduction
Patients and methods
Patients
Endoscopic laser surgery
Radiotherapy
Methods
Acoustic voice analyses
Statistical analyses
Results
Patients
Radiotherapy (n = 39) | Laser surgery (n = 67) | Total (n = 106) | |
---|---|---|---|
Recurrence | 2 (5%) | 2 (3%) | 4 (4%) |
Larynx preservation | 37 (95%) | 67 (100%) | 104 (98%) |
3rd month assessment | 6th month assessment | 12th month assessment | 24th month assessment | |
---|---|---|---|---|
Radiotherapy | ||||
Median | 3.3 | 7.1 | 12.4 | 24.7 |
Laser surgery | ||||
Median | 3.6 | 6.8 | 12.4 | 24.5 |
Voice outcome
Patients versus controls
Pre-treatment assessment | 3rd month assessment | 6th month assessment | 12th month assessment | 24th month assessment | ||||||
---|---|---|---|---|---|---|---|---|---|---|
RT | Laser | RT | Laser | RT | Laser | RT | Laser | RT | Laser | |
Jitter | 0.69 (68) | 0.61 (0.65) |
0.64 (0.55) |
0.31 (.22) | 0.51 (0.54) | 0.36 (0.30) | 0.48 (0.41) | 0.47 (0.75) | 0.62 (0.62) | 0.46 (0.49) |
Shimmer | 7.08 (2.73) | 7.11 (4.76) |
6.78 (3.26) |
4.55 (1.98) | 5.70 (2.54) | 4.89 (2.75) | 5.39 (2.66) | 5.06 (4.46) | 5.81 (3.75) | 5.28 (3.19) |
NNE | −5.10 (3.38) | −6.81 (4.77) | −6.94 (3.79) | −8.38 (3.90) | −8.57 (3.92) | −9.46 (4.43) | −8.11 (4.45) | −9.64 (5.09) | −7.17 (4.00) | −8.39 (4.23) |
F0 | 161 (32) | 153 (33) |
121 (29) |
153 (40) | 132 (37) | 147 (28) |
129 (32) |
144 (31) |
124 (29) |
141 (33) |