Classification of brain arteriovenous malformations located in motor-related areas based on location and anterior choroidal artery feeding.

ABSTRACT:

Objective

Surgical management of arteriovenous malformations (AVMs) involving motor cortex or fibre tracts (M-AVMs) is challenging. This study aimed to construct a classification system based on nidus locations and anterior choroidal artery (AChA) feeding to pre-surgically evaluate motor-related and seizure-related outcomes in patients undergoing resection of M-AVMs.

Methods and materials

A total of 125 patients who underwent microsurgical resection of M-AVMs were retrospectively reviewed. Four subtypes were identified based on nidus location: (I) nidus involving the premotor area and/or supplementary motor areas; (II) nidus involving the precentral gyrus; (III) nidus involving the corticospinal tract (CST) and superior to the posterior limb of the internal capsule; (IV) nid

SUBMITTER: Jiao Y 

PROVIDER: S-EPMC8485233 | biostudies-literature | 2021 Sep

REPOSITORIES: biostudies-literature