Table 1.
Mean ± standard deviation and relative change (RC %) of airway volume, surface area, and minimum cross-sectional area (mCSA).
| PAS | T0 (Mean ± SD) |
T1 (Mean ± SD) |
T2 (Mean ± SD) |
RC % (T0–T1) | RC % (T1–T2) |
|---|---|---|---|---|---|
| Volume (mm3) | |||||
| TA | 21,194.14 ± 5113.33 | 28,617.26 ± 8032.89 | 26,556.54 ± 8055.54 | 38% | −5% |
| NP | 5437.92 ± 2175.23 | 5919.18 ± 2101.36 | 5812.14 ± 2249.14 | 14% | −2% |
| OP | 14,773.96 ± 4813.27 | 21,908.69 ± 6828.23 | 20,136.73 ± 6680.50 | 59% | −4% |
| HP | 3243.95 ± 1330.66 | 3259.58 ± 1624.11 | 3529.96 ± 2024.87 | 21% | 2% |
| Surface area (mm2) | |||||
| TA | 10,869.39 ± 2148.63 | 12,095.80 ± 2476.5 | 12,273.99 ± 2884.84 | 13% | 3% |
| NP | 3081.18 ± 821.31 | 3158.71 ± 804.38 | 3249.71 ± 868.29 | 5% | 4% |
| OP | 6771.97 ± 1713.87 | 7939.60 ± 1881.65 | 8008.57 ± 2010.05 | 22% | 4% |
| HP | 1925.02 ± 657.01 | 1875.73 ± 674.8 | 1947.94 ± 763.86 | 8% | 6% |
| mCSA (mm2) | |||||
| 98.07 ± 47.59 | 182.29 ± 93.90 | 167.48 ± 78.96 | 71% | −15% | |
PAS: pharyngeal airway space; TA: total airway; NP: nasopharynx; OP: oropharynx; HP: hypopharynx; T0: before surgery; T1: immediately after surgery; T2: 1-year follow-up; SD: standard deviation; %: percentage; Sign: significance; −ve percentage indicates decrease; +ve percentage indicates increase; bold value indicates statistical significance.