Page 63 - Revista Portuguesa - SPORL - Vol 63. Nº2

Chart 5
Preoperative GAP

Table 5
Hearing outcomes by surgery performed. *p< 0.05 was considered significant

Pre-op A-B Post-op A-B Statistical Pre-op PTA Post-op PTA Statistical
Surgical procedure
gap (mean) gap (mean) analysis * (mean) (mean) analysis *
CWU 28,6 24,4 p=0.017 47,1 48,3 p=0.512
tympano-mastoidectomy
CWD
tympano-mastoidectomy 29,7 24,6 p=0.002 53,1 54,2 p=0.702
Attycotomy 38,8 22,5 p=0.447 61,7 49,9 p=0.472

pre-operative A-B gap was 28.6 dB, and the Hearing outcomes were not statistically
average PTA was 47.1 dB, with an average different between CWU and CWD groups
post-operative reduction in gap of 4.2 dB and regarding PTA (p=0.785) and A-B gap (p=0.722).
PTA worsening of 1.2 db. For the CWD group, Additionally, we concluded that there was also
the average pre-operative A-B gap was 29.7 no significant difference when comparing
dB, and the average PTA was 53.1 dB, with an type 2 and type 3 tympanoplasties: PTA (p=
average post-operative reduction in gap of 5.1 0,769) and A-B gap (p= 0,373). The overall
dB and PTA worsening of 1.1 dB. relapse rate was 21.6%, (n=21). Distribution of
From the small sample group of atticotomies those cases were as follows: 16 in CWU group,
(n=2), average pre-operative A-B gap was 38.8 4 in CWD group and 1 in the atticotomy group
dB, and the average PTA was 61.7 dB. After (table 6). From the total relapse cases, 17
surgery, there was a marked reduction in both (81%) corresponded to cholesteatomas which
A-B gap (16.3 dB) and PTA (11.8 dB), however, extended through more than one site and
the small sample size prevents any valid in 9 cases (42,9 %) there was cholesteatoma
assumptions from being drawn. visible in a difficult access site (S1 or S2). Of the

Volume 63 . Nº2 . Junho 2025 167