MediAI

  Binocular visual loss, acute visual loss, cardioembolic stroke, cerebral angiography, DSA, selective intraarterial thrombolysis, visual pathway infarction, posterior circulation stroke, occipital lobe infarction, cortical blindness, visual pathway ischemia, neuro-ophthalmology, emergency stroke imaging, interventional neuroradiology PART 5 — QUIZ + ADVANCED INTERPRETATION Binocular Visual Loss Caused by Acute Cardioembolic Stroke QUIZ Q1.  A 43-year-old woman developed sudden deterioration of consciousness accompanied by acute binocular visual loss during percutaneous mitral balloon valvuloplasty . Digital subtraction angiography (DSA) revealed distal occlusion of both posterior cerebral arteries (PCAs) . Which diagnosis best explains this patient’s clinical presentation? A. Hemi-neglect B. Paratonic rigidity C. Urinary incontinence D. Binocular visual loss E. Verbal agnosia Answer: D. Binocular visual loss.  Explanation:  Bilateral distal PCA occlus...

  Giant Basilar Artery Aneurysm: Pathophysiology, MRI Diagnosis, Imaging Features, Treatment, and Prognosis | Neurovascular Imaging Review Introduction: Giant Basilar Artery Aneurysm as a Critical Neurovascular Emergency The Giant Basilar Artery Aneurysm represents one of the most complex and life-threatening entities in neurovascular medicine. This rare but devastating form of intracranial aneurysm arises within the basilar artery, the central vessel supplying the brainstem, cerebellum, and posterior cerebral circulation. Due to its location within the posterior circulation, even gradual enlargement may result in severe neurological deterioration, while rupture can lead to catastrophic subarachnoid hemorrhage and death. The present case involves a 47-year-old right-handed woman presenting with progressive occipital headache, cognitive impairment, and personality change, with imaging revealing a giant basilar artery aneurysm measuring approximately 3.5 × 4.0 cm. These clin...

  Binocular visual loss, acute visual loss, cardioembolic stroke, cerebral angiography, DSA, selective intra-arterial thrombolysis, visual pathway infarction, posterior circulation stroke, occipital lobe infarction, cortical blindness, visual pathway ischemia, neuro-ophthalmology, emergency stroke imaging, interventional neuroradiology PART 4 — ADVANCED TREATMENT STRATEGIES, NEUROCRITICAL CARE & PROGNOSIS Binocular Visual Loss Caused by Acute Cardioembolic Stroke State-of-the-Art Therapeutic Framework & Evidence-Based Outcome Prediction SECTION 24 — THERAPEUTIC PRINCIPLES IN ACUTE BINOCULAR VISUAL LOSS Acute binocular visual loss due to ischemic stroke constitutes a  neuro-ophthalmologic catastrophe . Management must be: Immediate Multidisciplinary Evidence-based Time-critical Core Therapeutic Objectives: Rapid reperfusion Salvage of ischemic penumbra Prevention of infarct expansion Reduction of cerebral edema Prevention of secondary complications Maximization of visua...