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September 1991

Rapid Recovery From Cortical Visual Impairment Following Correction of Prolonged Shunt Malfunction in Congenital Hydrocephalus

Author Affiliations

From the Division of Child Neurology, Department of Paediatrics (Drs Connolly and Jan) and Department of Surgery (Dr Cochrane), University of British Columbia, Vancouver.

Arch Neurol. 1991;48(9):956-957. doi:10.1001/archneur.1991.00530210082028

• Three children with congenital hydrocephalus are described in whom increased intracranial pressure was associated with severe, long-lasting cortical visual impairment. Following shunt revisions or reconstructive craniotomies, visual improvement began within hours. It is speculated that increased intracranial pressure can occasionally result in chronic hypoperfusion of the parietal-occipital lobes, either due to posterior cerebral artery compromise secondary to transtentorial pressure gradient or to direct compression of cerebral tissues.