Awake craniotomy for auditory brainstem implant in patients with neurofibromatosis type 2: Four case reports

Table 1 Patient characteristics and demographic data

Case	Age (yr)	Sex	BMI (kg/m2)	Preoperative hearing status	Comorbidities	Surgical side
1	43	F	20	Severe hearing loss in left and mild in right	None	Left
2	31	M	26	Complete hearing loss in left ear and profound hearing loss in right	Left-sided lesions at the C3-C4 and C6-C7 intervertebral foraminal areas, 14 years after resection of cervical spinal schwannomas	Left
3	38	M	25	Bilateral total deafness	Total deafness	Left
4	24	F	17	Complete hearing loss in right ear and severe hearing loss in right ear	Anxiety	Right

BMI: Body mass index.