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

Table 6

Correlation of preservation of the anatomical and functional integrity of the cochlear nerve with preoperative, postoperative, and new postoperative tinnitus and resolution of tinnitus.

Cochlear nerve		Postoperative hearing level		Preoperative tinnitus		Postoperative tinnitus		New tinnitus		Elimination of tinnitus
					%		%		%		%
Interrupted	53	GRC5	53	46	87	15	28	0	0	31	86
Preserved	36		19	14	74	11	58	3	16	6	32
		GRC3-GRC4	8	6	75	2	25	1	13	5	63
		GRC1-GRC2	9	7	78	1	11	0	0	6	67

GRC: Gardner-Robertson’s classification.