Table 2

 Distribution of pre- and postradiosurgical CNDs and neurological disorders in 200 patients with skull base meningiomas

Cranial nerve deficit (CND)/clinical symptomNo. of patients
Before GKRSAfter GKRS
ImprovedStableDeteriorated
*Appearance of new deficit following GKRS.
Hyp/anosmia55
Visual field defect6318432 (1 transient)
Oculomotor nerve palsy3921171 (transient)
Trochlear nerve palsy936
Trigeminal sensory loss18810
Trigeminal neuralgia231672* (transient)
Abducent nerve palsy231211
Facial nerve palsy1367
Hearing loss20119
Tinnitus77
Deglutition difficulty66
Accessory nerve palsy33
Tongue weakness413
Hemiparesis11562 (1* unrelated, 1 transient)
Ataxia954
Vertigo25817
Cephalea2815121 (transient)
Seizure activity7241 (transient)
Exophthalmos1587