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  • Writer's pictureOren Zarif

Symptoms of Thalamic Stroke - Oren Zarif - Thalamic Stroke


Patients with thalamic stroke may have different symptoms based on the specific vascular anatomy of their brain. Neuropsychological tests are not used to diagnose thalamic stroke, but the information provided by treating physicians may be helpful in making a diagnosis. The four major vascular syndromes of thalamic stroke are outlined below. These stroke syndromes are not specific to one of the four thalamic nuclei, but are based on clinical and anatomic observations and reciprocal connections with behaviorally defined regions of cerebral cortex.

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The thalamic nuclei comprise 5 functional classes. The reticular and intralaminar nuclei serve the arousal and nociception domains, respectively. Effector nuclei participate in motor function and aspects of language, while limbic nuclei regulate mood and motivation. Vascular lesions in the thalamus destroy different combinations of these nuclei. These strokes are characterized by impairments of orientation and arousal, and can cause the superimposition of temporally unrelated information.

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The two main types of thalamic stroke are called polar artery territory infarction and thalamic infarction. They are often caused by a variety of factors, including ischemic stroke, vascular syndromes, and infection. The treatment for these strokes depends on the type of thalamus infarction. Although the vascular system of the thalamus is complex, it is generally a minor condition that can be treated without causing permanent damage.

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The symptoms of thalamic stroke include trouble with movement, speech difficulties, and visual loss. Treatment for thalamic stroke involves rapid diagnosis and treatment of the underlying cause and extensive rehabilitation. Although the road to recovery can be long, recent advances in stroke care have led many patients to return to a fulfilling life. But the road to recovery is not always smooth and rehabilitative treatment is the best way to overcome the challenges associated with a thalamic stroke.

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A recent study shows that patients with left hemispheric thalamic stroke are admitted to the hospital at 1.9 times the rate of those with right hemispheric thalamatic stroke. The most common location for ITS lesions is the left anterior thalamus, and the asymmetry of anteromedian thalamic vascular territories is prominent in patients with left-sided thalamic lesions.

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Because thalamic stroke has fewer recognizable symptoms, there may be a subgroup of patients with ITS that goes undiagnosed in the prehospital setting. This may lead to delayed diagnosis, which can limit secondary prophylaxis and treatment. Therefore, more research is needed to characterize the phenotypic features of thalamic stroke and identify diagnostic instruments for the subgroup. The findings may help improve the understanding of this neurological disorder.

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