Symptoms of the mysterious ailment have included hearing noise and experiencing head pressure followed by headache, migraines, dizziness, and memory lapses.
A U.S. government research team found no significant evidence of brain injury among a group of federal employees reporting symptoms of the “no differences in most clinical measures between a group of 86 employees and their adult family members reporting unusual health incidents and a matched group of healthy volunteers who had similar work assignments.
“These individuals have symptoms that are real, distressing and very difficult to treat,” Dr. Leighton Chan, NIH Clinical Center acting chief scientific officer and lead study author, said on a call to discuss the findings published in JAMA.and the United States, underwent a battery of clinical, auditory, balance, visual, neuropsychological and blood testing. They also received different types of MRI scans aimed at investigating volume, structure and function of the brain.
The findings from the MRI brain imaging study “should be some reassurance for patients,” since researchers did not find a link between unusual symptoms and neurodegenerative changes, said Louis French, study investigator and deputy director of the National Intrepid Center of Excellence at Walter Reed National Military Medical Center.
The U.S. State Department on Monday said it was reviewing the NIH report and that Secretary of State Antony Blinken’s top priority regarding what the department calls anomalous health incidents was the health, safety and security of personnel and family members.
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