Balloon Guide Versus Conventional Guide Catheter in Stroke Thrombectomy

The purpose of this clinical trial is to study the two main types of approaches used in stroke thrombectomy and to investigate if one approach is more effective than the other, as this is currently not known. This study will be conducted in adults who have been diagnosed with an acute ischemic stroke and who are undergoing a thrombectomy for the treatment of their stroke. The main questions it aims to answer are: * Does the use of a balloon guide catheter versus a conventional guide catheter lower the time needed to restore blood flow in the blocked vessel in the brain * To help researchers better understand the technical, clinical, and procedural outcomes associated with using a balloon guide catheter versus a conventional guide catheter in stroke thrombectomy Participants will be asked to * Share their medical history and imaging data that is collected as part of their routine medical care * Undergo a mechanical thrombectomy as part of their routine medical care * Answer some questions about their neurological functioning at 3 months (90 days) post hospitalization