Does Attempt at Hearing Preservation Microsurgery of Vestibular Schwannoma Affect Postoperative Tinnitus?

Table 3

Prevalence of the postoperative tinnitus according to the pre- and postoperative hearing level.

		Postoperative tinnitus
Preoperative hearing level	N	N	%
GRC1-GRC2	43	15	35
GRC3-GRC4	38	13	34
GRC5	8	1	12
Postoperative hearing level	N	N	%
GRC1-GRC2	9	1	11
GRC3-GRC4	8	2	25
GRC5	72	26	36

GRC: Gardner-Robertson’s classification.