To explore the safety and efficacy of interventional therapy for the Wallenberg syndrome (dorsolateral medullary syndrome) caused by extracranial vertebral artery occlusion.

The clinical data of 6 patients with Wallenberg syndrome caused by extracranial vertebral artery occlusion who received emergency interventional recanalization in the First People's Hospital of Xianyang and XD group Hospital from September 2022 to January 2023 were collected, and the basic data of the patients were retrospectively analyzed, including preoperative symptoms, occlusion of blood vessels, recanalization grade, surgical complications, changes in clinical symptoms and signs at 24 hours, mRS score at 90 days, etc.

The range of onset time in 6 cases was from 5 hours to 5 days. All responsible vessels were left vertebral arteries. The vertebral arteries were re-opened in all 6 patients, and the subjective symptoms such as dizziness/vertigo were significantly relieved in all patients 24 hours after the operation. One patient had thrombosis escape during the opening process, and had no symptoms after using intermediate catheter aspiration. mRS score at 90 days was good in all 6 patients.

Emergency intervention for Wallenberg syndrome caused by acute occlusion at the beginning of vertebral artery occlusion is safe and feasible, which can significantly alleviate patients' discomfort.