Table 5.
Comparison of the volumetric measurement on preoperatively (T0), immediate postoperatively (T1), and after 6 months postoperatively (T2)
| n = 22 | T0 | T1 | T2 | P value | ||
|---|---|---|---|---|---|---|
| Mean (SD) percentage | Mean (SD) percentage | Mean (SD) percentage | T0–T1 | T1–T2 | T0–T2 | |
| Nasopharynx | 5363.45 (1895.90) 100 % | 5013.05 (1562.34) 93.5 % | 5214.30 (1892.05) 97.2 % | .137 | .405 | .358 |
| Oropharynx | 17,833.09 (9130.96) 100 % | 10,989.30 (6776.01) 61.6 % | 11,860.33 (6187.34) 66.5 % | <.001 | .361 | <.001 |
| Hypopharynx | 7175.34 (5344.89) 100 % | 4635.66 (2513.35) 64.6 % | 4568.04 (2324.86) 63.7 % | .010 | .836 | .007 |
| Total | 30,371.88 (13,547.62) 100 % | 20,638.01 (9585.39) 68.0 % | 21,642.67 (9164.16) 71.3 % | <.001 | .445 | <.001 |
Volumetric measurements are expressed by cubic millimeters. The preoperative state (T0) was defined as 100 %. The paired t test was used, and P values <.05 are statistically significant.
Abbreviations: T0 preoperatively, T1 immediate postoperatively, T2 after 6 months postoperatively, SD standard deviation