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Normally, hemiplegia and other associated symptoms cease completely with sleep, but they may recur upon waking. [1] Most frequently AHC is caused by a spontaneous mutation in the ATP1A3 gene. [2] [3] [4] It is an extremely rare disorder – approximately one in one million people have AHC. It was only recently discovered, having first been ...
[3] [4] [5] Some non-modifiable risk factors such as age at diabetes onset, type of diabetes, gender, and genetics may influence risk. Other health problems compound the chronic complications of diabetes such as smoking , obesity , high blood pressure , elevated cholesterol levels, and lack of regular exercise .
Atherosclerosis narrows blood vessels in the brain, resulting in decreased cerebral perfusion. Other risk factors that contribute to stroke include smoking and diabetes. [6] Narrowed cerebral arteries can lead to ischemic stroke, but continually elevated blood pressure can also cause tearing of vessels, leading to a hemorrhagic stroke. [4]
Hemiplegia, in its most severe form, is the complete paralysis of one entire side of the body. Either hemiparesis or hemiplegia can result from a variety of medical causes, including congenital conditions, trauma, tumors, traumatic brain injury and stroke.
Weber's syndrome, also known as midbrain stroke syndrome or superior alternating hemiplegia, is a form of stroke that affects the medial portion of the midbrain. It involves oculomotor fascicles in the interpeduncular cisterns and cerebral peduncle so it characterizes the presence of an ipsilateral lower motor neuron type oculomotor nerve palsy and contralateral hemiparesis or hemiplegia.
Hemorrhage into the basal ganglia or thalamus causes contralateral hemiplegia due to damage to the internal capsule. [7] Other possible symptoms include gaze palsies or hemisensory loss. [7] Intracerebral hemorrhage into the cerebellum may cause ataxia, vertigo, incoordination of limbs and vomiting. [7]
[3] The biggest risk factor for stroke is high blood pressure. [7] Other risk factors include high blood cholesterol, tobacco smoking, obesity, diabetes mellitus, a previous TIA, end-stage kidney disease, and atrial fibrillation. [2] [7] [8] Ischemic stroke is typically caused by blockage of a blood vessel, though there are also less common causes.
Anterior cerebral artery syndrome is a condition whereby the blood supply from the anterior cerebral artery (ACA) is restricted, leading to a reduction of the function of the portions of the brain supplied by that vessel: the medial aspects of the frontal and parietal lobes, basal ganglia, anterior fornix and anterior corpus callosum.