Recurrent Giant Anterior Cerebral Artery (ACA) Aneurysm With Previous Coiling, Attempted Clipping Then Direct ACA-to-ACA Bypass: 2-Dimensional Operative Video.
Giant aneurysms are defined as lesions with a widest diameter of 2.5 cm or greater and account for 2% to 5% of all intracranial aneurysms. These lesions are challenging entities for microsurgical management with techniques such as direct aneurysmal neck clipping, aneurysm neck reconstructions, aneurysmotomy, and aneurysmectomy. This patient had a previously coiled, unruptured, superiorly projecting giant anterior communicating artery (ACom) aneurysm, eccentric toward the left, for which surgical intervention was undertaken. A left orbitozygomatic craniotomy was performed, and a temporary clip was applied to the bilateral proximal A1 segments. Aneurysmotomy was then performed with internal debulking of the aneurysmal thrombus. Aneurysmectomy and removal of the coil mass were performed. Next, the aneurysm neck was reconstructed using multiple surgical clips. After anticipated aneurysm neck reconstruction, indocyanine green (ICG) angiography demonstrated a lack of flow in the ipsilateral A2. The ACom was then transected along the aneurysm neck, and an end-to-end anastomosis of the distal A1 and proximal A2 was performed. Repeat ICG angiography demonstrated patency of the A1-A2 anastomosis. The patient gave informed consent for surgery and video recording. Institutional review board approval was deemed unnecessary. Used with permission from Barrow Neurological Institute, Phoenix, Arizona.
Oper Neurosurg (Hagerstown)
Digital Object Identifier (DOI)
Hendricks, Benjamin K and Spetzler, Robert F, "Recurrent Giant Anterior Cerebral Artery (ACA) Aneurysm With Previous Coiling, Attempted Clipping Then Direct ACA-to-ACA Bypass: 2-Dimensional Operative Video." (2020). Neurosurgery. 534.