Aneurysm Arising from the Distal Anterior Inferior Cerebellar Artery

An aneurysm arising from the distal anterior inferior cerebellar artery is reported. The patient, a 66-year-old woman, was admitted to our hospital with vertigo, headache, nausea and vomiting. CT scan showed a high-density area in the right ambient cistern, quadrigeminal cistern and cerebellopotine angle cistern. A right vertebral angiogram revealed a saccular aneurysm at the distal portion of the right anterior inferior cerebellar artery. Surgery was performed 4 days after admission. The neck of the aneurysm was clipped via the suboccipital approach. Normal pressure hydrocephalus ossurred during the postoperative course. Ventriculoperitoneal shunt was performed 4 weeks after the osccurrence of subarachnoidal hemorrhage. Clinical features of aneurysms arising from the distal anterior inferior cerebellar artery are reviewed from the previous reports and a mechanism of formation and treatment modalities of the aneurysm are discussed in this study.

Respiration

weaning

acute respiratory failure

Circulation

catecholamine