Early imaging helps diagnose hypoglossal nerve palsy from carotid artery dissection

This systematic review looked at 87 adult patients who had hypoglossal nerve palsy caused by extracranial internal carotid artery dissection. The average age of these patients was 48.5 years, and most were male. About 64 percent had isolated nerve palsy without other stroke symptoms. Diagnostic error occurred in 31 percent of cases. Medical management was used for 89.7 percent of patients, while surgery or endovascular treatment was used for 10.3 percent. Favorable outcomes were seen in 65.6 percent of patients. A link was found between pseudoaneurysm and surgical or endovascular treatment, as well as shorter follow-up duration. No difference in outcomes was found between groups with or without pseudoaneurysm. No safety concerns were reported in this review. The main reason to be careful is that this is an early review with a small number of patients. Further large-scale studies are needed to refine patient selection and optimize management strategies. Readers should understand that early vascular imaging should be considered in patients with isolated or atypical hypoglossal nerve palsy, even in the absence of ischemic lesions on brain MRI. This finding is important for doctors managing these rare conditions.