Optical coherence tomography confirms shunt malfunction and recurrence of raised intracranial pressure in optic atrophy.
Abstract
Background: Investigating potential cerebrospinal fluid (CSF) shunt malfunction can be a challenge. Optical coherence tomography (OCT), a non-invasive imaging technique, is used to monitor changes at the optic nerve head in papilloedema. Conventional teaching suggests that in the presence of optic atrophy the optic nerve head may not re-swell in response to a relapse in raised intracranial pressure (ICP).
Methods: A retrospective case series of three patients who had prior CSF diversion surgery for idiopathic intracranial cranial hypertension (IIH) is presented demonstrating the benefit of non-invasive OCT imaging confirming raised ICP.
Results: Recurrence of raised ICP, due to malfunctioning CSF shunt, was diagnosed in three patients requiring further surgical intervention. All re-presented acutely with headache and visual disturbances. All had a prior diagnosis of optic atrophy. In all patients, OCT peripapillary retinal nerve fibre layer qualitative image analysis and quantified progression analysis permitted easy detection of the recurrence of papilloedema.
Conclusion: OCT imaging supports clinical decision making in shunt malfunction, even in the presence of established optic atrophy secondary to IIH.
Citations
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Date
2020-11-06
Type
Article
Subject
Neurology, Surgery
Collections
Citation
Qureshi A, Virdee J, Tsermoulas G, Sinclair AJ, Mollan SP. Optical coherence tomography confirms shunt malfunction and recurrence of raised intracranial pressure in optic atrophy. Br J Neurosurg. 2022 Apr;36(2):185-191. doi: 10.1080/02688697.2020.1844146. Epub 2020 Nov 6.
Journal / Source Title
British Journal of Neurosurgery
DOI
10.1080/02688697.2020.1844146
PMID
33155843
Publisher
Taylor & Francis
Publisher’s URL
http://www.tandfonline.com/loi/ibjn20