Background: This case report highlights the successful revascularization therapy and favorable functional outcome in a rare and challenging case involving basilar artery occlusion and left subclavian artery partial obstruction. Case Presentation: We report a patient presented with a high National Institutes of Health Stroke Scale score and altered mental state following collapse. Timely intervention, with multidisciplinary team approach including mechanical thrombectomy and intravenous thrombolysis, led to a remarkable neurological recovery. The discussion emphasizes the significance of prompt revascularization in cases of posterior circulation stroke and underscores the need for further research on multiple arterial obstructions. Conclusion: This case illustrates the potential for positive prognostic indicators even in complex scenarios, ultimately improving patient outcomes in such critical conditions.

Keywords: Basilar artery occlusion, left subclavian artery, stroke, thrombectomy.