Ischemic Stroke Etiology | Neurology Student скачать в хорошем качестве

Ischemic Stroke Etiology | Neurology Student

In the series of Neurology lectures Dr. Hina Khan delivered a lecture on ischemic stroke pathology and in this lecture prime focus is on ischemic stroke etiology. The initial management of Ischemic Stroke often does not depend on the stroke etiology, establishing a cause is essential to reduce the risk of recurrence. The focus should be on atrial fibrillation and carotid atherosclerosis because these etiologies have proven secondary prevention strategies. ▬ 📌 Ischemic Stroke Etiology The clinical presentation and examination findings often establish the cause of stroke or narrow the possibilities to a few. Initially, Dr. Hina Khan explains the acute ischemic stroke pathophysiology leading toward the explanation of Cardioembolic Stroke along with ischemic stroke pathogenesis. Ischemic stroke pathogenesis explains that Cardioembolism is responsible for 20% of all ischemic strokes. Stroke caused by heart disease is primarily due to embolism of thrombotic material forming on the atrial or ventricular wall or the le heart valves. The most significant causes of cardioembolic stroke in most of the world are nonrheumatic (often called nonvalvular) atrial fibrillation, MI, prosthetic valves, rheumatic heart disease, and ischemic cardiac myopathy. Rheumatic heart disease usually causes ischemic stroke when there is prominent mitral stenosis or atrial fibrillation. Thrombus formation on atherosclerotic plaques may embolize intracranial arteries producing an artery to artery embolic stroke. Unlike the myocardial vessels, artery-to-artery embolism, rather than local thrombosis, appears to be the dominant vascular mechanism causing large-vessel brain ischemia. Stroke middle cerebral artery symptoms are also discussed here in depth. The term small-vessel stroke denotes occlusion of such a small penetrating artery and is now the pre-erred term. In the lecture then comes the explanation of small-vessel stroke Pathophysiology and clinical manifestations. Transient ischemic attacks: TIAs are episodes of stroke symptoms that last only briefly; the standard definition of duration is less than 24 h, but most IAs last less than 1 h. If a relevant brain infarction is identified on brain imaging, the clinical entity is now classified as stroke regardless of the duration of symptoms. ▬ 🎬 5500+ sqadia.com Medical Videos ▬▬▬▬▬▬▬▬▬▬ 👩🏻‍⚕️ Accessible Medical Student Education 24/7/365 💡 Simplifying Medical Learning 💪 Study Hard, Dream Big, Achieve More