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Table 4 Type of early-onset adverse events after gamma knife radiosurgery (classified as the dominant symptom)

From: Early-onset adverse events after stereotactic radiosurgery for jugular foramen schwannoma: a mid-term follow-up single-center review of 46 cases

Variable

Patients, n (%)

Newly developed symptoms

9 (56.3)

 CN VII–VIIIa

1 (6.2)

 CN IX–XIIb

5 (31.3)

 CN VII–VIII and CN IX–XII

3 (18.8)

 Neither CN VII–VIII nor CN IX–XIIc

0 (0.0)

Aggravation of pre-existing symptoms

7 (43.7)

 CN VII–VIIIa

0 (0.0)

 CN IX–XIIb

5 (31.2)

 CN VII–VIII and CN IX–XII

2 (12.5)

 Neither CN VII–VIII nor CN IX–XIIc

0 (0.0)

  1. CN cranial nerve
  2. aHearing impairment, facial weakness, etc
  3. bHoarseness, difficulty swallowing, tongue deviation, dysphagia, etc
  4. cHeadache, dizziness, etc