Table 1. Patient characteristics.

	Number	Percentage
Gender	103 males	44
	131 females	56
Laterality	125 right	50
	124 left	50
Location of prior surgery	Own institution: 36	14
	Other institution: 197	86
Preoperative irradiation	22	10
Neurofibromatosis type 2	86	37
Surgical approach	Translabyrinthine: 217	87
	Transcochlear: 14	6
	Middle fossa: 13	5
	Retrosigmoid: 6	2
Extent of resection	Gross total: 212	85
	Subtotal: 33	13
	Decompression only: 4	2
Intraoperative transfusion	30	14
Cerebrospinal fluid leak	21	8.4
Ventriculoperitoneal shunt	2	0.8
	Mean	Range
Age (years)	42.9	12–88
Length to follow-up	30 d	4 d to 1.8 y
Number of prior surgeries	1.26	1–4
Size of tumor at surgery (cm)	2.6	0.5–6.9
Operating time (hours)	4.6	1–12
Estimated blood loss (mL)	342	40–3,000

Note: Reported percentages are calculated using number of patients for whom data were available.