Table 2.
Clinical courses of five patients.
| No. | Age | Gender | Symptoms | Time to IT-DEX (day) | Time to surgery (day) | Preoperative CTP test (ng/ml) | Intraoperative CTP test (ng/ml) | Fistula finding at surgery | Hearing levels Pre IT-DEX |
Hearing levels Preoperative |
Hearing assessment Post IT-DEX |
Hearing levels Postoperative |
Hearing assessment Postoperative |
Improvement of vestibular symptoms |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1. | 15 | Female | Hearing loss, disequilibrium | 6 | 19 | <0.20 | 1.13 | None | 89 dB | 111 dB | No response | 99 dB | Slight recovery | Demonstrating marked improvement |
| 2. | 43 | Male | Hearing loss | 12 | 58 | 0.81 | 0.48 | None | 77 dB | 77 dB | No response | 84 dB | No response | - |
| 3. | 52 | Male | Hearing loss, disequilibrium | 8 | 192 | 3.44 | <0.20 | None | 83 dB | 37 dB | Marked recovery | 38 dB | No response | unchanged |
| 4. | 81 | Male | Hearing loss, disequilibrium | 35 | 416 | 1.85 | 0.53 | None | 48 dB | 51 dB | No response | 47 dB | No response | unchanged |
| 5. | 83 | Female | Hearing loss, disequilibrium | 3 | 727 | 1.00 | 0.48 | None | 57 dB | 69 dB | Slight recovery* | 43 dB | Slight recovery | Demonstrating marked improvement |
*Patient #5 showed hearing improvement to 33 dB after IT-DEX, but then experienced repeated hearing loss and disequilibrium. She had no hearing loss or disequilibrium attacks for 2.5 years after surgery.