Table 1.

	Patients	Age (years)	Side (L: left, R: right)	Size of tumor	Canal paresis (%)	Length of surgery (hours)
ITG group	1	33	L	1	40	7
	2	47	L	4	41	6
	3	65	R	3	15	7
	4	59	R	2	30	7
	5	42	R	3	40	6
	6	40	L	4	28	8
	7	51	R	2	27	8
	8	56	L	3	34	6
	9	59	L	4	18	7
	10	52	L	2	20	8
Control group	1	43	L	3	9	7
	2	47	L	4	7	6
	3	60	R	4	15	9
	4	60	L	4	54	11
	5	54	L	3	40	6
	6	56	R	3	24	6
	7	44	L	2	23	8
	8	42	R	4	18	8
	9	52	L	4	40	9
	10	45	L	2	35	5

ITG: intratympanic gentamicin.