Stories
» Go to news mainExophthalmos following mechanical thrombectomy for anterior circulation stroke: A retrospective study and review of literature
New publication from Dr. David Volders. See full text.
Abstract
Background: Anecdotal cases of exophthalmos after acute mechanical thrombectomy have been described. We sought to estimate the incidence in a large cohort of patients with acute anterior circulation stroke treated with mechanical thrombectomy. Secondarily, we aimed to evaluate the underlying mechanism and to differentiate it on imaging from other pathology with similar clinical orbital features.
Methods: Between November 2016 and November 2018, we performed a retrospective single-center study of 250 patients who underwent anterior circulation mechanical thrombectomy. Development of exophthalmos was independently evaluated by two readers on preprocedure and 24-h postprocedure non-contrast cerebral CT.
Results: In the mechanical thrombectomy cohort, six individuals (2.4%) developed interval ipsilateral exophthalmos at 24 h. Of these, at least two patients developed clinical symptoms. There was almost perfect agreement between assessments of the two readers (Cohen's kappa = 0.907 (95% confidence interval: 0.726, 1.000)). In two patients, there was delayed ophthalmic artery filling on digital subtraction angiography. None of the patients had features of a direct carotid-cavernous fistula.
Conclusions: Exophthalmos is not uncommon after mechanical thrombectomy (2.4%). The underlying mechanism is difficult to confirm, but it is most likely due to orbital ischemia from hypoperfusion or distal emboli.
Recent News
- QEII welcomes the first GE StarGuide SPECT‑CT scanner in Canada.
- The first 68Ga‑PSMA PET scans in Atlantic Canada mark a new era in prostate cancer assessment
- Dr. David Volders awarded the Dr. Charles Lo Prize in Radiology Research
- Radiology Research Day 2024
- Program Administrator Award of Excellence
- Clinical practice guideline for management of osteoporosis and fracture prevention in Canada: 2023 update
- Dr. Siân Iles interviewed on CBC's Information Morning
- Dr. Steven Beyea and Dr. Adela Cora featured in the latest Beyond Research podcast from ResearchNS
Comments
comments powered by Disqus