Table 3.
Comparison of parameters between patients cured versus those with residual obstructive sleep apnea following maxillomandibular advancement (MMA).
| Post-MMA | |||||
|---|---|---|---|---|---|
| Surgical cure (AHI < 5) N = 10; 42% (mean ± SD) |
n | No cure (AHI ≥ 5) N = 14; 58% (mean ± SD) |
n | P value | |
| Pre-MMA | 14 | ||||
| Age (years) | 44.4 ± 7.8 | 10 | 51.0 ± 12.0 | 14 | 0.07 |
| Male (%) | 80 | 8 | 71.4 | 10 | 0.5 |
| BMI | 30.3 ± 4.4 | 9 | 31.0 ± 6.5 | 12 | 0.9 |
| AHI (events/h) | 46.5 ± 31.9 | 10 | 44.6 ± 23.0 | 14 | 0.9 |
| SpO2 nadir (%) | 81.1 ± 9.6 | 10 | 81.3 ± 6.6 | 12 | 0.7 |
| Previous phase-I surgery1 (%) | 62.5 | 5/8 | 37.5 | 3/8 | 0.2 |
|
| |||||
| Surgery | |||||
| Maxillary advancement (mm) | 9.2 ± 1.9 | 9 | 9.6 ± 0.8 | 12 | 0.8 |
| Mandibular advancement (mm) | 9.1 ± 2.0 | 9 | 9.0 ± 2.0 | 12 | 0.9 |
|
| |||||
| Post-MMA | |||||
| BMI (kg/m2) | 29.2 ± 7.1 | 8 | 30.0 ± 3.8 | 13 | 0.9 |
| % Change in BMI (%) | −1.7 ± 5.5 | 7 | 0.5 ± 6.7 | 11 | 0.6 |
| AHI (events/h) | 1.0 ± 0.5 | 10 | 12.7 ± 11.6 | 14 | <0.0001 |
| % Change in AHI (%) | −96.5 ± 3.5 | 10 | −63.2 ± 40.1 | 14 | <0.0001 |
| SpO2 nadir (%) | 88.8 ± 4.2 | 10 | 84.1 ± 5.2 | 14 | 0.0221 |
| % Change in SpO2 nadir (%) | 10.9 ± 14.9 | 10 | 3.9 ± 12.8 | 12 | 0.2 |
Abbreviations: SD: standard deviation; BMI: body mass index (kg/m2); AHI: apnea-hypopnea index (apneas and hypopneas/hour sleep); SpO2: oxyhemoglobin saturation.
1Patients who underwent an upper airway procedure prior to MMA.