Abstract

Posterior circulation stroke accounts for approximately 20% of ischemic strokes with varied clinical presentation, which differ from strokes in anterior circulation, with reference to etiology, clinical features, and prognosis. Short penetrating and circumferential branches in the posterior circulation supply the brain stem, thalamus, cerebellum, occipital, and medial temporal lobes. Materials and Methods: We prospectively analyzed 80 participants of posterior circulation ischemic stroke patients in Government General hospital, Vijayawada. Patients were analyzed for demographics, stroke risk factors, clinical characteristics, neuroimaging, and stroke subtypes. Results: Posterior circulation ischemic stroke accounted for 80 cases of all ischemic strokes from January 2023 to February 2024. Fifty one were males with mean age group 60-70 yrs(35%). Hypertension was found to be the most common risk factor 42 (52.5%). Giddiness and vomiting was the most common clinical symptom reported in 52 (65%) cases. 58 (72.5%) patients had large artery disease, 6 (7.5%) had documented cardioembolic source. Topographically distal intracranial involvement was most frequent 36 (40%).Brain stem is most commonly involved area 32 (40%).Conclusion: Our study demonatrated the occurrence of posterior circulation stroke in older age group . We also found higher percentage of large artery disease, while cardioembolism as a less frequent cause of posterior circulation ischemic stroke. Distal territory involvement was most common in our study

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