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Acta Neurochirurgica

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01-12-2024 | Brain Arteriovenous Malformation | Original Article

Location-based clinical and angiographic profile of brain arteriovenous malformations – a single-center observational study

Authors: Juan E. Basilio-Flores, Joel A. Aguilar-Melgar, Henry Pacheco-Fernandez Baca

Published in: Acta Neurochirurgica | Issue 1/2024

Abstract

Background

The location of brain arteriovenous malformations (bAVM) is one of the most relevant prognostic factors included in surgical, endovascular and radiosurgical scores. However, their characteristics according to location are seldom described. The goal of this study was to describe the clinical and angiographic characteristics of bAVM classified according to their location.

Methods

This retrospective observational study included patients diagnosed with bAVM and attending a national referral hospital during the period 2010–2020. Data regarding clinical and angiographic variables were extracted, including characteristics on nidus, arterial afferents, venous drainage and associated aneurysms. BAVM were classified in 8 groups according to their location: frontal, temporal, parieto-occipital, periventricular, deep, cerebellar, brainstem and mixed. Data distribution for each group was determined and between-group differences were assessed.

Results

A total of 269 bAVM (in 258 patients) were included. The most frequent location was parieto-occipital; and the least frequent, brainstem. Statistically significant differences were observed between groups for most studied variables, including: clinical presentation, functional status at admission; nidus size and density, classification according to the Spetzler-Martin, Buffalo and modified Pollock-Flickinger scales; number, diameter, origin and type of afferents; number, diameter, type and direction of venous drainage, retrograde venous flow; and presence and size of flow-related aneurysms.

Conclusion

The clinical and angiographic differences observed between brain AVM groups allow the formulation of profiles according to their location.

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Title: Location-based clinical and angiographic profile of brain arteriovenous malformations – a single-center observational study
Authors: Juan E. Basilio-Flores
Joel A. Aguilar-Melgar
Henry Pacheco-Fernandez Baca
Publication date: 01-12-2024
Publisher: Springer Vienna
Keywords: Brain Arteriovenous Malformation
Aneurysm
Aneurysm
Intracranial Aneurysm
Published in: Acta Neurochirurgica / Issue 1/2024
Print ISSN: 0001-6268
Electronic ISSN: 0942-0940
DOI: https://doi.org/10.1007/s00701-024-06105-y

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Springer Medicine

Location-based clinical and angiographic profile of brain arteriovenous malformations – a single-center observational study

Abstract

Background

Methods

Results

Conclusion

Keynote webinar | Spotlight on medication adherence

Springer Medicine

Abstract

Background

Methods

Results

Conclusion

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