ArticleStroke (Hoboken, N.J.)2022
Angiographic Predictors of Outcomes After Balloon Test Occlusion.
Article in Stroke (Hoboken, N.J.), 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 2 papers.
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The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
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Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.
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Who cites it
2 citing papers in PubMed.
- Management Challenges of Internal Carotid Artery Pseudoaneurysm in Skull Base Osteomyelitis.Journal of neurological surgery. Part B, Skull base · 2026Review
- Cerebral in situ ischemic postconditioning: From bench to bedside and beyond.Neuroprotection (Chichester, England) · 2026Review
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Authors and funding
8 authors.
Funding
No grant is acknowledged in the PubMed record.
Abstract
Background: Balloon test occlusion (BTO) with adjunctive single-photon emission computed tomography has been used to predict tolerance after permanent internal carotid artery occlusion. Anatomic characteristics of the cerebral circulation might predict BTO outcomes and identify patients susceptible to test failure. Methods: We performed a single-center retrospective analysis of patients who underwent internal carotid artery BTO from July 2013 to June 2020. Patients who passed the clinical BTO underwent single-photon emission computed tomography imaging; technetium-99m-ethyl cysteinate dimer was injected intravenously after 15 to 30 minutes of occlusion and induced hypotension. The diameter of the vessels of the circle of Willis was measured angiographically. Single-photon emission computed tomography imaging hypoperfusion severity was classified as none, mild, low intermediate, high intermediate, and severe. A threshold vessel diameter with most predicted accuracy for BTO failure was created using the Youden index. The threshold value was tested in a logistic regression for prediction of BTO failure and accuracy as represented with a receiver operator curve. Results: Fifty-seven patients underwent BTO. Neoplasia was the most common indication (n=43, 75%). Twelve (21.1%) patients failed the clinical BTO. Contralateral dominant vertebral artery ( Conclusions: Angiographic findings can be used to predict BTO results. A small ipsilateral posterior communicating artery, and more significantly, a small ACom (<1.1 mm) can be used to identify patients who are likely to fail BTO.
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