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Intracranial Aneurysm Classifier Using Phenotypic Factors: An International Pooled Analysis

Morel, Sandrine; Hostettler, Isabel C; Spinner, Georg R; Bourcier, Romain; Pera, Joanna; Meling, Torstein R; Alg, Varinder S; ... Bijlenga, Philippe; + view all (2022) Intracranial Aneurysm Classifier Using Phenotypic Factors: An International Pooled Analysis. Journal of Personalized Medicine , 12 (9) , Article 1410. 10.3390/jpm12091410. Green open access

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Abstract

Intracranial aneurysms (IAs) are usually asymptomatic with a low risk of rupture, but consequences of aneurysmal subarachnoid hemorrhage (aSAH) are severe. Identifying IAs at risk of rupture has important clinical and socio-economic consequences. The goal of this study was to assess the effect of patient and IA characteristics on the likelihood of IA being diagnosed incidentally versus ruptured. Patients were recruited at 21 international centers. Seven phenotypic patient characteristics and three IA characteristics were recorded. The analyzed cohort included 7992 patients. Multivariate analysis demonstrated that: (1) IA location is the strongest factor associated with IA rupture status at diagnosis; (2) Risk factor awareness (hypertension, smoking) increases the likelihood of being diagnosed with unruptured IA; (3) Patients with ruptured IAs in high-risk locations tend to be older, and their IAs are smaller; (4) Smokers with ruptured IAs tend to be younger, and their IAs are larger; (5) Female patients with ruptured IAs tend to be older, and their IAs are smaller; (6) IA size and age at rupture correlate. The assessment of associations regarding patient and IA characteristics with IA rupture allows us to refine IA disease models and provide data to develop risk instruments for clinicians to support personalized decision-making.

Type: Article
Title: Intracranial Aneurysm Classifier Using Phenotypic Factors: An International Pooled Analysis
Location: Switzerland
Open access status: An open access version is available from UCL Discovery
DOI: 10.3390/jpm12091410
Publisher version: https://doi.org/10.3390/jpm12091410
Language: English
Additional information: This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
Keywords: hypertension, intracranial aneurysm, location, risk factors, smoking, subarachnoid hemorrhage
UCL classification: UCL > Provost and Vice Provost Offices > School of Life and Medical Sciences > Faculty of Brain Sciences
UCL > Provost and Vice Provost Offices > School of Life and Medical Sciences > Faculty of Brain Sciences > UCL Queen Square Institute of Neurology > Brain Repair and Rehabilitation
UCL > Provost and Vice Provost Offices > School of Life and Medical Sciences
UCL
UCL > Provost and Vice Provost Offices > School of Life and Medical Sciences > Faculty of Brain Sciences > UCL Queen Square Institute of Neurology
URI: https://discovery.ucl.ac.uk/id/eprint/10156436
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