Double Reverse Flow of Orbitary Vessels Following Mechanical Thrombectomy in Acute Ischemic Stroke

Duplex ultrasound is a noninvasive and rapid technique that offers information on cerebral vascular hemodynamics in real time, which is very useful in acute stroke. Specifically, the orbital study provides important information on collateralization in severe cases of cervical carotid stenosis, showing an inversion of the ophthalmic artery (OA). Less frequently evaluated, hemodynamic changes in the ophthalmic vein provide information on the presence of arteriovenous malformations or fistulas (Erickson SJ et al. Radiology 1989: 173 (2): 511–516). We report a case of ophthalmic artery and vein inversion simultaneously after mechanical thrombectomy (MT).