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...

  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 2 — CLINICAL MASTERCLASS & ADVANCED IMAGING INTERPRETATION Binocular Visual Loss Caused by Acute Cardioembolic Stroke SECTION 10 — CLINICAL PRESENTATION: NEURO-OPHTHALMOLOGIC MASTERCLASS 10.1 Clinical Spectrum of Acute Binocular Visual Loss Acute binocular visual loss represents one of the most catastrophic neurological symptoms, indicating bilateral involvement of central visual processing structures . Unlike monocular vision loss, which frequently reflects ocular or anterior optic pathway pathology, binocular visual loss almost always implies post-chiasmal or cortical dysfunction , most commonly due to ischemic stroke. The clinic...