Table 2 Previous studies of intratympanic dexamethasone therapy as a salvage treatment
| Â | No. of patients | PTA recovery | Dexamethasone concentration | Doses | Proportion of recovery (%) |
|---|---|---|---|---|---|
Ho et al. [9] | 15 | 28 dB | 4 mg/mL | 3 doses, once a week | 53% |
Choung et al. [10] | 34 | 9 dB | 5 mg/mL | 4 doses, twice a week | 39% |
Roebuck et al. [11] | 31 | 12 dB | 24 mg/mL | Single | 29% |
Haynes et al. [12] | 40 | 5 dB | 24 mg/mL | Single | 27.5% |
Plontke et al. [13] | 11 | 14 dB | 4 mg/mL | Pump for 14 days | 45% |
Kakehata et al. [14] | 24 | 17 dB | 4 mg/mL | 15 doses | 58% |
Lee et al. [15] | 34 | NA | 4 mg/mL | 6 doses for 14 days | 21% |
Mean (95% CI) | 27 (21-33) | Â | Â | Â | 39% (30%-48%) |