Acute ischemic stroke resulting from tandem lesions — insights from a Thrombectomy Capable Stroke Center in Kashubia region (Poland). The frequency, causes, procedural intricacies, and complications of tandem lesions compared to isolated intracranial artery occlusions and isolated extracranial internal carotid artery occlusion

Key Points

• To evaluate the impact of tandem lesions on clinical outcomes and procedural dynamics in acute ischemic stroke patients.
• Analyzed a cohort of interventionally treated acute ischemic stroke patients.
• Compared outcomes and complications of tandem lesions with isolated intracranial and extracranial occlusions.
• Assessed presence of atherosclerosis risk factors in patients.
• Tandem lesions correlated with poorer clinical outcomes compared to isolated lesions.
• Endovascular procedures for tandem lesions were more complex and took longer.
• Patients with isolated intracranial lesions were older and primarily had atrial fibrillation as a risk factor.