Table 1 Summary of pre and post-operative improved tympanograms based on type (A, B, or C)
From: Balloon dilation of the eustachian tube: a tympanometric outcomes analysis
| Pre-op tymp | Post-op tymp | Proportion | Percentage |
|---|---|---|---|
| B | A | 2/5 | 40 % |
| C | A | 6/20 | 30 % |
| B | C | 1/5 | 20 % |
| Improvement in Type | 9/25 | 36 % | |
| Normalization of Tympanogram | 8/25 | 32 % | |