Acute Ischemic Stroke Due to Posterior Cerebral Artery P2 Segment Occlusion Treated with Mechanical Thrombectomy

Abstract Introduction: Mechanical thrombectomy (MT) has become part of the standard treatment for patients who have acute ischemic stroke due to large-vessel occlusion in the anterior cerebral circulation. But the safety and effectiveness of MT for posterior cerebral artery (PCA) is still controversial. Patient concerns: We report a 40-year-old man with a medical history of hypertension who was non-compliant with the treatment. He presented to the hospital with right extremity paralysis, aphasia, and left gaze paralysis due to the occlusion of left PCA P2 segment (National Institutes of Health Stroke Scale Score 16). Head computed tomography showed infarction area of left temporal lobe and occipital lobe. Diagnosis: A head computed tomography angiography examination showed left PCA P2 segment occlusion. Interventions: The patient underwent MT and subsequent angiography showed left PCA P2 segment occlusion was recanalized after MT. Outcomes: The patient's symptoms improved completely after MT. Conclusion: The clinical symptoms due to PCA P2 segment occlusion may be mistaken clinically for MCA stroke syndrome, which may lead to severe functional deficit. MT seems to be safe and effective in treating PCA P2 segment occlusion.