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. 2021 Feb 13;16(3):165–177. doi: 10.1016/j.joto.2021.02.001

Table 3.

Summary of treatment outcomes.

Study(Publication Year) Criterion for hearing recovery
Outcome(Recovery Rate[%])
PTA Before Treatment(dB)
PTA Differences(dB)
Frequency for PTA(kHz)
Follow-up Period
Results
T C T C T C T C T C T C
[1]Chen, 2018 >15 dB improvement in PTA 67.5 37.5 69.4 ± 14.6 69.5 ± 14.7 NA NA NA injection > IV
[2]Gülce et al., 2017 >10 dB improvement in PTA 87.5 84.2 NA NA 0.5, 1.0, and 2.0 3M injection = oral
[3]Hong et al., 2009 >15 dB improvement in PTA 75 72 77.5 ± 27.6 79.9 ± 23.5 NA 0.5, 1, 2 and 3 3M injection = oral
[4]Liang et al., 2012 >15 dB improvement in PTA 91.7 80 66.55 ± 16.52 66.2 ± 16.43 NA NA 30d Eustachian tube injection > IV/oral
[5]LI Hui et al., 2013 >15 dB improvement in PTA 84.2 60.5 68.3 ± 23.5 63.2 ± 21.7 NA 0.5, 1, 2 and 4 1M injection > IV
[6]Lim, 2013 >10 dB improvement in PTA 55 60 58.9 ± 31.2 57.8 ± 28.5 12.1 ± 14.6 12.8 ± 15.4 0.5, 1, 2 and 3 3W injection = IV
[7]LI Zhi et al., 2015 >15 dB improvement in PTA 81.3 75 64.5 ± 20.1 65.8 ± 18.7 13.9 ± 17.16 14.8 ± 16.5 NA NA injection > IV
[8]Michael, 2018 >15 dB improvement in PTA 70.6 77.1 81.4 ± 23.3 81.1 ± 28.8 27 29 0.5, 1, 2 and 4 90d injection = IV/oral
[9]Peng et al., 2008 >15 dB improvement in PTA 80.95 61.9 72.0 ± 18.6 69.0 ± 16.5 43.2 ± 21.5 21.3 ± 16.6 0.5, 1, 2 and 4 1W injection/Eustachian tube injection > IV/oral
85.7 66.7 71.0 ± 18.67 70.0 ± 17.6 48.1 ± 15.2 27.5 ± 14.5
[10]Qu et al., 2015 >15 dB improvement in PTA 80.7 78.26 NA NA NA NA injction = IV
[11]Tang et al., 2015 NA 84 68 85.4 ± 5.6 84.8 ± 5.6 53.7 ± 5.17 36.6 ± 5.28 NA 15d injection > IV
[12]Zhang et al., 2016 >15 dB improvement in PTA 76.19 73.74 76.95 ± 15.49 78.08 ± 15.90 25.88 ± 14.46 22.85 ± 12.37 NA 8W injection = IV
[13]Rauch, 2011 >10 dB improvement in PTA 76.7 84.3 86.4(82.8–90.0) 86.7(82.9–90.6) NA NA 2M injection = oral
[14]Kosyakov et al., 2011 >15 dB improvement in PTA 88 56 41.0 ± 12.87 39.1 ± 16.97 24.8 ± 5.83 14.0 ± 3.58 0.5, 1, 2 and 4 6M 1 month treatment, injection = IV; Long-term treatment, injection > IV
[15]Dispenza et al., 2011 >10 dB improvement in PTA 80 81 65 51 NA 0.5, 1, 2, and 4 6M injection = IV

T, Treatment group C, control group PTA, pure tone average NA, not available.