I63.413

Clinical Causes: Blood clots or fatty deposits that travel from elsewhere in the body and block blood flow in both middle cerebral arteries Emboli originating from the heart, especially in cases of atrial fibrillation or heart valve disease Atherosclerosis leading to formation of emboli that can dislodge and travel to cerebral arteries Rarely, fragments of tumors or other debris acting as emboli Presence of patent foramen ovale (a type of heart defect) that allows emboli to pass from the right to the left side of the heart and then to the brain

Key Symptoms: Sudden weakness or numbness, especially on one side of the body Difficulty speaking or understanding speech Sudden vision problems in one or both eyes Loss of coordination or balance, leading to falls Sudden severe headache that may be described as the worst ever experienced Confusion or difficulty with reasoning and memory Difficulty swallowing or drooling Loss of sensation or abnormal sensations in affected regions

Diagnosis Path: Neurological examination to evaluate motor skills, speech, vision, and cognitive functions Imaging tests such as computed tomography (CT) scans or magnetic resonance imaging (MRI) to visualize brain tissue and confirm infarction Angiography to visualize blood flow in cerebral arteries and identify blockages Echocardiography to detect potential sources of emboli within the heart Blood tests to assess clotting factors, cholesterol levels, and other risk indicators Electrocardiogram (ECG) to identify cardiac arrhythmias like atrial fibrillation

Treatment Protocols: Immediate administration of clot-dissolving medications such as tissue plasminogen activator (tPA), if within the appropriate time window Endovascular procedures like mechanical thrombectomy to physically remove the embolus Antiplatelet medications (e.g., aspirin) to reduce clot formation Anticoagulants such as warfarin or novel agents to prevent new emboli, particularly in cases linked to heart conditions Blood pressure control and management of cholesterol levels to reduce future stroke risk Lifestyle modifications including smoking cessation, diet changes, and increased physical activity Rehabilitation therapies—physical, occupational, and speech therapy—to aid recovery of lost functions