Neurology
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To assess the correlation between cognitive impairment and overall vs regional CNS damage, quantified using conventional and diffusion tensor (DT) MRI tractography in multiple sclerosis (MS). ⋯ Lesions in strategic brain WM tracts contribute to cognitive impairment in MS through a multisystem disconnection syndrome.
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To investigate whether central facilitation of trigeminal pain processing is part of the pathophysiology of cluster headache (CH). ⋯ Asymmetric facilitation of trigeminal nociceptive processing predominantly on brainstem level was detected in patients with CH. This alteration is most pronounced in the acute pain phase of the disease, but appears to persist in remission periods. Only chronic CH patients show additional changes of PREP prompting to supraspinal changes of pain processing related to the chronic state of disease in regard to neuronal plasticity, which exceeds changes observed in episodic CH.
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To assess safety and efficacy of thrombolysis in 18- to 50-year-old patients compared to those aged 51 to 80 years recorded in the Safe Implementation of Thrombolysis in Stroke-International Stroke Thrombolysis Register (SITS-ISTR). ⋯ This study provides Class III evidence that younger patients (18-50 years) with ischemic stroke symptoms treated with IV alteplase have lower morbidity and mortality compared to older patients (51-80 years).
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This study explores the functional and structural patterns of connectivity underlying working memory impairment after severe traumatic axonal injury. ⋯ Combining structural and functional neuroimaging data, we were able to describe structural white matter changes related to functional network alterations and to lower performance in working memory in chronic TBI.