Abstract
Flow diversion is a relatively new technique used for the treatment of intracranial aneurysms. The introduction of flow diverters (FDs) dates back to 2007. Nowadays, several types of FDs are available on the market of neurointerventional devices. Indications for flow diverter use are unruptured large or giant saccular wide-neck or fusiform intracranial aneurysms. However, the number of published studies regarding the off-label use of FDs in the setting of acute aneurysmal subarachnoid hemorrhage (SAH) is increasing [1–4].
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Funding
No specific funding from either commercial or non-commercial organizations was received for the research and writing of this chapter.
BoxWhat is known?
Flow diversion as treatment for recently ruptured aneurysms seems to yield a high complete occlusion rate. Two meta-analysis about this topic, with overlapping study population but different inclusion criteria, reported fairly high rates of favorable clinical outcome. Reporting of (treatment-related) varies considerably among published studies.
What is new?
Only (very) low quality evidence regarding the use of flow diverters in the acute SAH phase is available. Publication and selection bias seem to be important types of bias distorting the final results of meta-analyses, with larger series tending to report especially more negative results regarding clinical outcome.
Consequences for clinical practice
Flow diversion should be considered last resort option in the treatment of recently ruptured aneurysms. When no other treatment option is deemed feasible, the use of FDs can be considered. However the high rate of complications should be kept in mind. Rationale behind choice for FD treatment in this setting should be documented properly and should be subject of future research.
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ten Brinck, M.F.M., de Vries, J. (2019). Subarachnoid Hemorrhage Due to Ruptured Intracranial Aneurysms: The Scientific Base for Flow Diverters. In: Bartels, R., Rovers, M., Westert, G. (eds) Evidence for Neurosurgery. Springer, Cham. https://doi.org/10.1007/978-3-030-16323-5_7
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DOI: https://doi.org/10.1007/978-3-030-16323-5_7
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