Stroke May Be Foretold By Sudden Hearing Loss

Stroke May Be Foretold By Sudden Hearing Loss


New details have emerged indicating that according to Taiwanese researchers, sudden hearing loss may foreshadow a stroke by as much as two years.

Very tellingly, the researchers analyzed five years of follow-up data on 1,423 patients hospitalized for an acute episode of sudden hearing loss and found they were more than 1.5 times more likely to suffer a stroke than a control group of 5,692 patients hospitalized for an appendectomy.

For interested persons, the findings, published in the current issue of Stroke, haven't been duplicated in other research and should be interpreted with caution.

As lead investigator Herng-Ching Lin, a professor at Taipei Medical University School of Health Care Administration, said in a prepared statement: "To the best of our knowledge, no study has investigated the incidence or risk of cerebrovascular diseases developing following the onset of sudden sensorineural hearing loss"

But because this is the first time any association has been suggested, and because there were many limitations in the data, the results need to be interpreted cautiously until additional independent studies are performed," Lin said.

One limitation was the lack of a clear definition for sudden sensorineural hearing loss in the database reviewed by the researchers.

On a concluding note, Lin noted that "Secondly, the database did not contain information regarding severity of hearing loss, extent of hearing recovery, tobacco use, body-mass index and the medical history of cardiovascular disease and atrial fibrillation -- all of which can contribute to stroke risk."

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