Magazine article Clinical Psychiatry News

Obstructive Sleep Apnea May Increase Risk of Stroke Twofold

Magazine article Clinical Psychiatry News

Obstructive Sleep Apnea May Increase Risk of Stroke Twofold

Article excerpt

SAN DIEGO -- Obstructive sleep apnea increases the risk of the composite outcome of transient ischemic attack, stroke, or death by twofold, Dr. Klar Yaggi reported in a poster session at the 29th International Stroke Conference.

Moreover, increasing severity of obstructive sleep apnea (OSA) is associated with increased risk for the development of this outcome, said Dr. Yaggi, an instructor in the department of medicine at Yale University, New Haven.

"A number of case-control and cross-sectional studies have shown a strong association between OSA and stroke, but evidence that clearly delineates the direction of causation is lacking," he said at the conference, sponsored by the American Stroke Association.

Dr. Yaggi and his associates conducted a prospective study of 1,052 patients referred to the Yale Center for Sleep Medicine for evaluation of sleep-disordered breathing between Jan. 1, 1997 and Dec. 31, 2000. Patients underwent overnight polysomnography; OSA was diagnosed when the apnea-hypopnea index was greater than or equal to five events per hour. The investigators used validated measurements to assess incident stroke events and determined all-cause mortality from records filed with the Connecticut Department of Public Health and Social Security Death Index. …

Search by... Author
Show... All Results Primary Sources Peer-reviewed

Oops!

An unknown error has occurred. Please click the button below to reload the page. If the problem persists, please try again in a little while.