American Academy of Neurology, April 13-18

The annual meeting of the American Academy of Neurology was held this year from April 13 to 18 in Denver, drawing participants from around the world, including clinicians, academicians, allied health professionals, and others interested in neurology. The conference highlighted recent advances in neurological disorders, with presentations focusing on the diagnosis, management, and treatment of disorders impacting the brain and nervous system.

In one study, Elan Louis, M.D., of the University of Texas Southwestern Medical Center in Dallas, and colleagues found that essential tremor may serve as a risk factor for other neurodegenerative diseases, including dementias.

A total of 222 individuals with essential tremor were evaluated over a five-year period, every 1.5 years, to determine their cognitive skills. At the beginning of the study, the authors found that 168 individuals had normal cognitive skills, 35 had mild cognitive impairment, and 19 had dementia. During the study period, 59 individuals developed mild cognitive impairment and 41 developed dementia. The researchers found that the risk of developing dementia was as much as three times higher among individuals with essential tremor compared to the general population.

“A growing body of evidence from case-control studies to prospective, longitudinal studies has convincingly established that essential tremor, a neurodegenerative disease itself, is a risk factor for other neurodegenerative diseases, including dementias,” Louis said. “This work sets the stage for additional studies that examine the mechanistic basis for the association between essential tremor and dementia.”

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In another study, Chanaka Kahathuduwa, M.D., Ph.D., of the Texas Tech University Health Sciences Center in Lubbock, and colleagues found that patients with poor social determinants of health are less likely to receive thrombolytic therapy upon presentation to the emergency department with acute ischemic stroke.

Using the Texas Emergency Department Public Use Data Files from 2016 to 2019, the authors evaluated whether there is an association between social determinants of health and receiving thrombolytic therapy following presentation with an acute ischemic stroke. The researchers found that older age, Black race, Hispanic ethnicity, having government-sponsored insurance or no insurance (compared with having private insurance), and living in a rural setting were all associated with a lower likelihood of receiving thrombolytic therapy.

“We emphasize the need to conduct large-scale national and international studies to examine the causative factors, mediators, and moderators of this association,” Kahathuduwa said. “Until we come up with these specific answers, at least we can be more cognizant, especially when making that decision in the emergency room, to make sure those who medically deserve the clot buster receive the clot buster.”

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