. 2019 Mar 20;86(2):182–190. doi: 10.1093/neuros/nyz075

TABLE 3.

Examples of Major and Minor Complications Reported During Long-Term Follow-Up in 5 Studies

Study	Major complications	Minor complications
Yang et al³³	Hearing loss (0.9%), partial facial nerve palsy (0.4%), meningitis (0.9%), CSF leak (0.9%)	Headaches (3.6%), vomiting (4.0%), facial dysesthesia (2.7%), ataxia (0.9%)
Sandel et al⁸	Cerebellar hematoma (1.2%), CSF leak (2.9%), abacterial meningitis (0.4%), facial paresis, death (0.4%)	Wound infection (1.6%), facial numbness (0.9%), dizziness (1.8%), hearing impairment (2.7%), tinnitus (0.4%)
Sekula et al⁴¹	Hyponatremia (5.6%)	Trigeminal numbness (13.9%), dysesthesias (5.7%)
Ferroli et al⁴³	Hearing loss (1%), CSF fistula (4.2%), posterior fossa subdural hematoma (0.2%), bacterial meningitis (0.4%)	Trigeminal numbness (5.5%), transient diplopia (3.2%), mild hearing loss (5.2%)
Sindou et al⁶²	Trochlear nerve palsy (0.83%), facial nerve palsy (0.83%), hearing loss (1.9%), death (0.44%)	Trigeminal numbness (3.04%)

CSF, cerebrospinal fluid.