Delayed inflammatory reaction after mechanical thrombectomy: A case report and literature review

Affiliations

Advocate Lutheran General Hospital

Abstract

Mechanical thrombectomy is the standard of care for patients with ischemic stroke due to large vessel occlusion with salvageable penumbra and has resulted in improved outcomes. Mechanical thrombectomy is performed under fluoroscopy and involves the use of microcatheters introduced into the cerebral circulation. A rare side effect of this procedure is granulomatous inflammation due to hydrophilic polymer particles which are part of the composition of the microcatheters and can slough off during their usage resulting in a delayed inflammatory reaction due to the presence of foreign material. We report a case of a 70-year-old woman who presented with a seizure several months after mechanical thrombectomy whose imaging demonstrated vasogenic edema in the territory of her infarct, suggestive of a granulomatous reaction. She was successfully treated with intravenous steroids followed by an oral steroid taper which resulted in clinical improvement and resolution of the lesion. The recognition of this rare condition is important as it can lead to delayed neurological complications, which can be treated with steroids.

Type

Article

Link to Full Text

 

Share

COinS