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The Egyptian Journal of Otolaryngology

Table 6 Comparison of pure tone average and air–bone gap before and after the procedure, N = 86

From: Effectiveness of trichloroacetic acid and trichloroacetic acid with gel foam for closure in patients with central perforation of tympanic membrane—a randomized controlled trial

 

Small-sized perforation

Medium-sized perforation

PTA

ABG

PTA

ABG

TCA with gel foam

Before procedure

28.95 ± 2.33

16.30 ± 2.21

37.47 ± 2.78

22.36 ± 2.53

After procedure

15.72 ± 1.76

9.63 ± 1.64

17.93 ± 1.97

9.78 ± 1.19

TCA

Before procedure

28.7 ± 2.28

16.46 ± 2.42

37.08 ± 2.94

22.08 ± 2.51

After procedure

18.59 ± 2.57

11.79 ± 1.79

19.35 ± 2.91

11.21 ± 1.52

  1. TCA Trichloroacetic acid, PTA Pure tone average, ABG Air–bone gap
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