Table 1.
Patient demographics and hearing thresholds in the affected ear.
| Affected Ear Thresholds | |||||||||
|---|---|---|---|---|---|---|---|---|---|
| Case | Affected Ear |
Gender | Agea | 3fPTA Pre |
FFPTA Pre |
3fPTA 3 mob |
FFPTA 3 mo |
3fPTA 6 mo |
FFPTA 6 mo |
| 1c | R | F | 28 | 70.0 | 73.1 | 120.0 | 120.0 | 120.0 | 120.0 |
| 2 | R | M | 50 | 50.0 | 55.7 | 120.0 | 120.0 | 120.0 | 120.0 |
| 3 | R | F | 43 | 46.7 | 54.4 | 120.0 | 120.0 | NAd | NA |
| 4 | R | M | 45 | 15.0 | 33.1 | 120.0 | 120.0 | 120.0 | 120.0 |
| 5 | R | F | 47 | 30.0 | 48.1 | 33.3 | 48.8 | 35.0 | 49.4 |
| 6 | L | M | 39 | 48.3 | 46.7 | 120.0 | 120.0 | 120.0 | 120.0 |
| 7 | L | M | 52 | 43.3 | 61.3 | 50.0 | 63.8 | NA | NA |
| 8 | L | F | 56 | 35.0 | 38.3 | 36.7 | 50.0 | 38.3 | 40.8 |
| 9 | L | F | 53 | 18.3 | 28.1 | 61.7 | 65.8 | 61.7 | 61.1 |
| Mean | 45.9 | 39.6 | 48.8 | 86.9 | 92.0 | 87.9 | 90.2 | ||
| SEM | 2.9 | 5.7 | 4.7 | 13.4 | 11.2 | 15.5 | 14.2 | ||
| Tumor size and location per case. | ||||
|---|---|---|---|---|
| Case | Size (cm) | Volume | Location | Treatmente |
| 1 | n/af | n/a | n/a | SR vestibular nerve |
| 2 | 3.4 × 3.2 | CPA, residual tumor | Radical subtotal SR followed with GK | |
| 3 | 2 | CPA, extending in | SR | |
| 4 | 2.7 × 2.2 × | CPA, extending in | SR followed with GK | |
| 5 | 0.5 × 1 | IAC | Middle fossa craniotomy | |
| 6 | 1.6 × 2.1 × | CPA | Sub-occipital craniotomy with SR | |
| 7 | 1.2 × 1 | 683.4 | CPA, extending in | GK |
| 8 | 0.6 | 217 | IAC mid canal | GK |
| 9 | 1700 | CPA, extending in | GK | |
a
Age at time of study enrollment.
b
One hundred twenty assigned to all thresholds with no response to test equipment limits.
c
Case 1 had Meniere’s syndrome.
d
Patient not available for threshold testing or imaging scans, NA.
a
Cerebellopontine angle (CPA); intracanalicular (IAC).
b
Treatments included Gamma Knife radiosurgery, GK and surgical resection, SR.
c
Not applicable (n/a); other dimensions as noted by surgeons in the patient records.