A case of acute basilar artery occlusion treated with endovascular techniques via the persistent hypoglossal artery
ZHANG Bo-gang
WANG Guo-qing
PENG Min
CHEN Xiu-xiao
SHEN Xiao-ping
YAN Xi-ge
Abstract：Persistent hypoglossal artery (PHA) is a rare cerebrovascular anomaly,frequently associated with hypoplasia of the vertebral arteries and incomplete development of the circle of Willis. As a collateral branch of the carotid-basilar anastomosis,it serves as a critical blood supply route for the posterior circulation. Misidentification or inadvertent embolization of PHA during endovascular procedures can lead to severe neurological consequences. We report a case of acute basilar artery occlusion associated with PHA. The patient underwent successful endovascular intervention via PHA,resulting in significant clinical improvement and subsequent discharge. One month post-treatment,follow-up evaluation revealed that the patient had achieved functional independence,with a modified Rankin Scale (mRS) score of 1. Therefore,accurate identification of PHA is crucial for ensuring the safety and efficacy of cerebrovascular interventions. It also plays a vital role in diagnosing specific types of posterior circulation infarction. Given its rarity and potential impact on treatment outcomes,clinicians should be vigilant in recognizing this anatomical variation.
Keywords：Acute basilar artery occlusionPersistent hypoglossal arteryEndovascular intervention
Publication Date：2024-09-25
Online Publishing Date：2025-08-15(First online date of this platform, not the publication date of the document)
Pages：3( 574-576 )