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Smoking and Seizures
Reported November 27, 2009
(Ivanhoe Newswire) – People who currently smoke cigarettes are at
significant risk for seizures.
Boston-based researchers from Brigham and Women's Hospital and Harvard
Medical School conducted a prospective study to examine the potential risks
associated with cigarette smoking, caffeine intake, and alcohol consumption
as they independently relate to epilepsy. They found that long-term,
moderate intake of caffeine or alcohol does not increase the chance of
having a seizure or developing epilepsy.
Epilepsy is a neurological condition characterized by repeated unprovoked
seizures where electrical disturbances in the brain cause sudden involuntary
convulsions and muscle spasms. Approximately 2.5 million Americans are
affected by epilepsy, with 150,000 new cases diagnosed in 2009 alone. The
Centers for Disease Control estimates that epilepsy accounts for $15.5
billion in medical costs and lost earnings.
Single seizures or those provoked by alcohol withdrawal or other cause are
even more common, occurring in up to 10 percent of the population.
Barbara A. Dworetzky, M.D., and colleagues used data obtained from the
Nurses' Health Study II, a group of 116,608 female registered nurses, aged
25-42 years, who returned mailed questionnaires on their lifestyle and
medical history. The data used in this study were obtained from 1989 through
May 31, 2005.
"Our analysis showed risk of seizure was significantly higher for current
smokers, but not related to the amount of cigarettes smoked daily," Dr.
Dworetzky was quoted as saying. "It does appear, however, that the number of
years of smoking does increase seizure risk."
Researchers observed no trend of increasing seizure or epilepsy risk with
increasing caffeine consumption. Further results indicated that risk of
seizures or epilepsy was not significantly different between heavy to
moderate alcohol drinkers and alcohol abstainers.
"Given the composition of the study group [91 percent Caucasian women], our
findings may not apply to men, younger or older populations, groups with
lower socioeconomic status or lower attained education, or populations with
higher percentages of minorities," advised Dr. Dworetzky.
SOURCE: Epilepsia, February 2010 |
