Simultaneous bilateral stapes surgery after follow-up of 13 years

Figures & data

Figure 1. The average air-conduction hearing thresholds (mean ± SEM) at the preoperative, 1-year postoperative and late postoperative visits in patients that underwent simultaneous bilateral stapes surgery. The thresholds of 0.5–4 kHz are presented for the preoperative and 1-year postoperative visits and the thresholds of 0.125–8 kHz for the late postoperative visit.

Figure 2. The air-bone gap categories at the two postoperative visits.

Table 1. Audiological findings in patients that underwent simultaneous bilateral stapes surgery.

Parameter	Preoperative (n = 18)	1-year postoperative (n = 18)	Late postoperative (n = 13)
PTA-AC (dB HL; mean ± SEM)	42 ± 2	25 ± 1* (p < .0001)	30 ± 2* (p < .0001)
PTA-BC (dB HL; mean ± SEM)	21 ± 1	19 ± 1	22 ± 1
ABG (dB HL, mean ± SEM)	22 ± 1	6 ± 1* (p < .0001)	7 ± 1* (p < .0001)
WRS (%; median [range])	100 (92–100)	100 (84–100)	100 (92–100)
SRT (dB HL; median [range])	40 (25–60)	20 (10–40)^a (p < .0001)	23 (15–40)^a (p < .0001)

*Statistically significant difference between the preoperative value (one-way analysis of variance with Bonferroni correction).

^aStatistically significant difference between the preoperative value (Kruskal-Wallis test with Bonferroni correction).