Table 2.

Clinical data of patients.

	Left neurotomy	Right neurotomy	Statistics
Aetiology
VS Grade 1	n = 1	n = 0
VS Grade 2	n = 4	n = 4
VS Grade 3	n = 6	n = 2
MD	n = 2	n = 2
Examination at D–1
Delay since onset (years)	3.3 ± 3.2	2.4 ± 1.8	p = 0.403
Hearing loss (dB)	44.6 ± 6.9	58.6 ± 19.2	p = 0.959
VOR gain	0.46 ± 0.13	0.42 ± 0.16	p = 0.558
Spontaneous nystagmus (°/s)
Horizontal	0.6 ± 0.8	0.5 ± 0.6	p = 0.870
Vertical	0.4 ± 0.7	0.5 ± 0.6	p = 0.636
Examination at D+7
VOR gain	0.4 ± 0.1	0.4 ± 0.1	p = 0.659
Spontaneous nystagmus (°/s)
Horizontal	3.4 ± 2.7	3.6 ± 5.6	p = 0.936
Vertical	1.6 ± 1.3	0.7 ± 1.0	p = 0.146
Cyclotorsion (°)	9.8 ± 4.2	8.3 ± 4.1	p = 0.530
Examination at D+60
Cyclotorsion (°)	5.1 ± 4.3	5.7 ± 4.9	p = 0.819

MD, Ménière's disease; VOR, vestibulo-ocular reflex; VS, vestibular schwannoma. Statistics: independent-samples t-test was used to compare the groups of patients.