Table II.
Levels and patterns of obstruction in patients with an AHI > 15.
| Obstruction | Sites of obstruction | ||
|---|---|---|---|
| 415 Patients 67.6% |
Monolevel 193 (46.5%) |
Oropharynx 183 Tongue 8 (4.2%) Epiglottitis 2 (1%) |
|
| Multilevel 222 (53.5%) |
2 levelS 203 (91.5%) |
O + H 172 (77.5%) O + L 27 (12.2%) H + L 4 (1.8%) |
|
| 3 levels 19 (8.5%) |
O + H + L 19 (8.5%) | ||
| Site of obstruction (alone or in association) |
Pattern of obstruction |
|---|---|
| Oropharynx 401 Patients 96.6% |
Antero-posterior 37.2% Latero-lateral 7.2% Circular 55.6% |
| Hypopharynx 203 Patients 48,6% |
Antero-posterior 45.7% Latero-lateral 32.6% Circular 21.7% |
O = Oropharynx; H = Hypopharynx; L = Larynx