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【科普】健康风险与夜间高血压有关
Big health risks tied to nightly blood pressure
STUDY | 24-hour monitoring may help avert heart attack, stroke
May 21, 2007
BY JIM RITTER Health Reporter jritter@suntimes.com
WARNING: Having the wrong blood pressure when you're asleep may be dangerous to your health.
Blood pressure normally drops between 10 percent and 20 percent in sleep.
Renee Thompson, a nurse at Provena St. Joseph Medical Center in Joliet, checks Sheila Seaberg's blood pressure.
(STNG)
A new study has found that if the decrease is outside that range -- either less than 10 percent or more than 20 percent -- the patient faces a higher risk of heart attacks, strokes and kidney problems.
The findings illustrate the need for nighttime blood pressure monitoring, said Italian researcher Dr. Sante Pierdomenico, lead author of a study being presented at a meeting in Chicago of the American Society of Hypertension.
A 24-hour monitoring device can measure blood pressure while a patient sleeps. The patient wears the battery-operated device on the hip and a blood pressure cuff on the arm. A plastic tube connects the monitor and the cuff.
But insurance doesn't pay
The device periodically inflates the cuff and takes a blood pressure reading. Some patients wake up when the cuff inflates; others sleep through it. A University of Iowa study found that only 20 percent of patients found the device uncomfortable.
University of Chicago blood pressure specialist Dr. George Bakris recommends 24-hour blood pressure monitoring for high-risk groups, including African Americans, obese patients, diabetics and kidney patients. Results can help determine whether patients should take blood pressure pills in the morning or evening.
Twenty-four-hour monitoring costs $250 to $400. Medicare provides limited coverage for a few patients and no coverage for most. Many insurers also deny coverage. Some patients decline to have 24-hour monitoring because of cost, Bakris said.
Previous studies found that little or no blood pressure dip at night increases the risk of heart attacks and strokes. The new study is the first to show that a large dip also is bad, Bakris said. Low blood pressure can reduce blood flow and increase the risk of clots, he said.
Medicare will pay for 24-hour monitoring when a patient is suspected of having "white coat hypertension." This is when otherwise normal blood pressure increases when it's taken by a doctor or nurse. 本人已认领该文编译，48小时后若未提交译文，请其他战友自由认领。 Big health risks tied to nightly blood pressure
健康风险与夜间高血压有关
STUDY | 24-hour monitoring may help avert heart attack, stroke
研究：24小时监测可能有助于防止心脏病，中风
May 21, 2007
BY JIM RITTER Health Reporter jritter@suntimes.com
WARNING: Having the wrong blood pressure when you're asleep may be dangerous to your health.
2007年5月21日，JIM RITTER 健康通讯员r jritter@suntimes.com。
警告：当你睡眠时有不正常的血压可能对健康有危害。
Blood pressure normally drops between 10 percent and 20 percent in sleep.
在睡眠时，血压正常的升降范围在10％和20％之间。
Renee Thompson, a nurse at Provena St. Joseph Medical Center in Joliet, checks Sheila Seaberg's blood pressure. [标签:content1][标签:content2]
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作者:admin@医学,生命科学 2011-03-04 05:11
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