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  • Writer's pictureOren Zarif

Symptoms of a Thalamic Stroke - Oren Zarif - Thalamic Stroke


A thalamic stroke can result in severe symptoms, including impaired sensation. The symptoms of a thalamic stroke may progress to severe pain and thermal dysregulation, but recovery is possible and depends on the type of stroke. A full recovery can take weeks or even months. It is important to integrate rehabilitation skills into daily life to improve recovery. Symptoms are not always temporary, but if you suffer from a thalamic stroke, you should see your doctor right away.

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The five major thalamic nuclei are subdivided into 5 functional classes. Retinal and intralaminar nuclei subserve arousal and nociception, while sensory nuclei support motor function and aspects of language. Associative nuclei contribute to high-level cognitive functions, and limbic nuclei are responsible for motivation and mood. The vascular lesions that affect different combinations of nuclei are responsible for the various symptoms of a thalamic stroke. Tuberothalamic territory strokes are characterized by impaired arousal and orientation and by superimposition of temporally unrelated information.

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A thalamic stroke can lead to acute movement disorders and delayed movements due to the disruption of important fibres and connections in the thalamus. However, thanks to cerebral plasticity, the majority of thalamic stroke survivors show significant improvement in their movement disorders. Some patients experience bilateral tremor. There are four major types of tremor: resting, postural, action, and intention. The following table describes the most common types of tremor associated with a thalamic infarct.

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Bilateral thalamic stroke is a rare complication of a cerebral ischemia. The cause of this rare form of stroke is unclear, but the etiology is often cardioembolic disease, small vessel disease, or individual anatomical predisposition. Neurological deficits may include speech, cognition, and memory impairment. There may be no obvious physical signs or symptoms of this disorder, although neurological imaging can be useful in identifying ischemic loci.

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Vascular imaging has the potential to distinguish between a thalamic infarct and a smaller vascular syndrome. Moreover, vascular imaging can also be used to identify underlying vascular pathologies. If a thalamic infarct is small in size, a borderzone infarct may result in a smaller, less visible thalamic infarct. The authors conclude that a borderzone infarct is a more likely diagnosis than a thalamic infarct.

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Patients with isolated thalamic stroke have a higher likelihood of being admitted to the hospital than patients with right-sided thalamic infarcts. These patients have more left-sided ITS lesions, which is reflected in the lesion map. The lesion map also reveals asymmetry between the anteromedian and lateral thalamic vascular territories. Although more left-sided ITS lesions were associated with neuropsychological symptoms, these lesions were not associated with lacunar syndromes.

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When a person experiences a thalamic infarct, the brain tissue surrounding the infarct receives inadequate blood flow. Without adequate blood flow, the brain cannot receive enough oxygen to perform the necessary functions. The infarct cuts off the oxygen supply to the tissue, resulting in long-term consequences. The resulting damage may include speech and communication problems, and even seizures. It is important to understand the symptoms of a thalamic infarct in order to determine whether you are suffering from this type of stroke.

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The most common thalamic infarcts are anterior choroidal artery infarction and posterior choroidal artery infarctions. These infarcts involve the anterior limb of the internal capsule, the lateral geniculate body, and the internal medullary lamina. These patients have a severely impaired memory and are usually not aware of the events surrounding them. Although a large portion of patients with these conditions will have significant visual and cognitive deficits, most will return to a normal life.

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While most thalamic strokes involve the lateral thalamus, they can also affect the behavior of the patient. The thalamus contains several fiber systems that connect to other regions of the brain. Because these pathways are impacted, some clinical symptoms may occur. The resulting symptoms can include visual hallucinations, global dysphasia, and other neurological problems. In addition, these brain lesions may also result in toxicity.

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Previous studies have described the vascular supplies of the thalamus in various regions. However, little is known about the long-term outcomes of thalamic infarcts. In a recent study of twenty-seven patients with a thalamic infarct, researchers described the clinical background, etiology, and TOAST classification. Although the clinical outcome was largely similar between groups, older patients were more likely to die and have recurrent strokes.

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