Multiple and mirror intracranial aneurysms: study of prevalence and associated risk factors

Rosí, Jefferson; Santos, Alexandra Gomes dos; Silva, Saul Almeida da; Iglesio, Ricardo; Caldas, J. G. M. P.; Rabelo, Ní­collas Nunes; Teixeira, Manoel Jacobsen; Preul, Mark C.; Spetzler, Robert F.; Figueiredo, Eberval Gadelha

doi:10.1080/02688697.2020.1817849

Cited by 5 publications

(2 citation statements)

References 28 publications

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“…21 This was subsequently supported by findings from a study of 1404 aneurysm patients, in which there was an increased frequency of females with multiple aneurysms compared with males (OR, 1.883 [95% CI, 1.386-2.560]). 22 Postulated reasons for these sex differences in aneurysm location and multiplicity include hormonal influences on vascular remodeling and potentially increased frequency of vessel wall weakness in females. 16,18,19,23 One study evaluated how hemodynamic factors may also play a role in sex differences in aneurysm prevalence and location by examining middle cerebral artery and internal carotid bifurcation anatomy along with resulting hemodynamic implications.…”

Section: Aneurysm Location and Multiplicitymentioning

confidence: 99%

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Sex Differences in Cerebral Aneurysms and Subarachnoid Hemorrhage

Fuentes

McGuire

Amin‐Hanjani

2022

Stroke

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Sex differences in cerebral aneurysm occurrence and characteristics have been well described. Although sex differences in outcomes following ischemic stroke have been identified, the effect of sex on outcomes following hemorrhagic stroke, and in particular, aneurysm treatment has been less studied. We describe the current state of knowledge regarding the impact of sex on treatment and outcomes of cerebral aneurysms. Although prior studies suggest that aneurysm prevalence and progression may be related to sex, we did not find clear evidence that outcomes following subarachnoid hemorrhage vary based on sex. Last, we identify areas for future research that could enhance understanding of the role sex plays in this context.

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Section: Aneurysm Location and Multiplicitymentioning

confidence: 99%

Section: Cerebral Aneurysms and Sexmentioning

confidence: 99%

Sex Differences in Cerebral Aneurysms and Subarachnoid Hemorrhage

Fuentes

McGuire

Amin‐Hanjani

2022

Stroke

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Effect of Siphon Morphology on the Risk of C7 Segment Aneurysm Formation

Wang,

Chen,

Song

et al. 2024

Clin Neuroradiol

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Purpose Tortuosity of the internal carotid artery (ICA) is associated with intracranial aneurysms (IAs). The siphon is the most curved segment of the ICA, but its morphology has controversial effects on IAs. This study aimed to explore the morphometric features of the siphon and the potential hemodynamic mechanisms that may affect C7 aneurysm formation. Methods In this study 32 patients with C7 aneurysms diagnosed at Xiangya Hospital between 2019 and 2021 and 32 control subjects were enrolled after propensity score matching. Computed tomography angiography (CTA) images were acquired to measure morphologic features, and then, by combining clinical data, simplified carotid siphon models were constructed, and computational fluid dynamics (CFD) analysis was performed. Results The presence of C7 aneurysms was associated with the height of the C4–C6 curved arteries (odds ratio [OR] 0.028, 95% confidence interval [CI] 0.003–0.201; P < 0.001). The heights of the C4–C6 curved arteries in the aneurysm group were significantly shorter than those in the control group. The CFD analysis revealed that shorter C4–C6 bends led to greater blood velocity and pressure in the C7 segment arteries. Conclusion A shorter C4–C6 bend was associated with distal C7 aneurysm formation, and an elaborate hemodynamic mechanism may underlie this association.

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Neuro-image: giant communicating segment mirror aneurysms

Zhao

Liang

2022

Acta Neurol Belg

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Multiple and mirror intracranial aneurysms: study of prevalence and associated risk factors

Cited by 5 publications

References 28 publications

Sex Differences in Cerebral Aneurysms and Subarachnoid Hemorrhage

Sex Differences in Cerebral Aneurysms and Subarachnoid Hemorrhage

Effect of Siphon Morphology on the Risk of C7 Segment Aneurysm Formation

Neuro-image: giant communicating segment mirror aneurysms

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