时间:2019-02-03 作者:英语课 分类:2007年VOA标准英语(一月)


英语课

By Melinda Smith
Washington, DC
11 January 2007
 
watch Heart Disease Blood Test



 


The World Health Organization (WHO) says that cardiovascular disease causes approximately one third of all deaths worldwide (16.7 million). And those deaths are not just limited to industrialized nations.  By 2010, the WHO estimates that heart disease and stroke also will be the leading causes of death in developing countries.  But the WHO says heart disease is not always a death sentence. At least 20 million people survive heart disease and stroke every year.  And now a blood test can accurately 1 predict a patient's chances of a heart attack. 


Many people already know what they should do to avoid a heart attack or stroke:  Stay away from foods full of saturated 2 fat, salt and carbohydrates 3.  Eat more fruit and vegetables.  Exercise more.  Don't smoke.  Take a cholesterol-lowering drug.


But sometimes the odds 4 of a future heart attack or stroke are still higher for those people who have already been diagnosed with cardiovascular disease. 


 
Thomas Gray
Sixty-four-year-old Thomas Gray has survived two heart attacks and is under regular medical care.   But his doctor, Kirsten Bibbins-Domingo, believes the more she knows about the risk, the more aggressive his treatment can be. "The things we were interested in are things like a heart attack, a stroke, heart failure or dying from your heart disease."


Dr. Bibbins-Domingo and a team of medical researchers in San Francisco, California followed the progress of at least 900 heart patients.  Their findings, published in the Journal of the American Medical Association, showed that the presence of a marker called NT-pro-BNP in the blood helps forecast a possible attack. 


 
Dr. Kirsten Bibbins-Domingo
Dr. Bibbins-Domingo says higher the marker, the greater the odds. "What we think is that the blood test that detects NT-proBNP can detect the heart that's under stress at very early stages in a way that may be missed by other types of heart tests that we routinely order."


Researchers say the blood test is only useful for those patients who already have heart disease.  Dr. Bibbins-Domingo says standard diagnostic tools, such as echocardiograms and stress tests, may not always reflect the true picture.


"...in some of these patients who otherwise had normal tests, their NT-proBNP levels were high and were predictive of having future complications," she says.


Patients in the study were followed for almost four years on average.  Those whose blood tests showed the highest percentage of the NT-proBNP marker were at least three times more likely to either have a heart attack or die from some form of heart disease. 


While the findings may be a little hard for patients like Thomas Gray to hear, they may alert his doctors to the need for targeted treatment: "I've been wondering how much longer do I have and what's the prognosis look like.  So I think it would be great to have a test like that."



adv.准确地,精确地
  • It is hard to hit the ball accurately.准确地击中球很难。
  • Now scientists can forecast the weather accurately.现在科学家们能准确地预报天气。
a.饱和的,充满的
  • The continuous rain had saturated the soil. 连绵不断的雨把土地淋了个透。
  • a saturated solution of sodium chloride 氯化钠饱和溶液
n.碳水化合物,糖类( carbohydrate的名词复数 );淀粉质或糖类食物
  • The plant uses the carbohydrates to make cellulose. 植物用碳水化合物制造纤维素。 来自《简明英汉词典》
  • All carbohydrates originate from plants. 所有的碳水化合物均来自植物。 来自辞典例句
n.让步,机率,可能性,比率;胜败优劣之别
  • The odds are 5 to 1 that she will win.她获胜的机会是五比一。
  • Do you know the odds of winning the lottery once?你知道赢得一次彩票的几率多大吗?
学英语单词
above resonance balancing machine
Applicable Law of Right in Rem
argoan
automatic reset
auxiliary service transformer
B.Mus.Ed.
back-stabbings
bewilderingly
bigos
blasphemy act
boranylidene
bromides
Byzantinologists
cable telephony
capital from treasury stock transactions
carolina lupines
charbroiling
Chikou Span
CHVP
combined permanent deformation
condylura cristatas
corn rootworm
cutaway disk
deboshing
defense adaptation
defina
electronic document communication system
evil-willer
eyeshadow cream
first coat of plaster
for goodness' sake
free-up
friponnerie
full -line forcing
gay bashes
genus dolichoss
good weathers
Graninge
graph traversal
halo symptom
helium-displacement method
high angle hole
hodge-pudding
hydropower
incrementalduplex
intra-epidermal
ion complex
karataviensis
Kavalerovskiy Rayon
l-plan
letter-fit
master cqs
mountain phloxes
movielink
Muggensturm
Murillo el Fruto
Never put off till tomorrow .
new-tech
nieuwveld ra. (nuweveldberge)
obstructives
omnidirectional beacon
periodic test signal
plastic-lined steel pipe
point of pleadings
poisonmonger
postabdominal
pretensed
procainamide
pupillostatometer
quinine dihydrochloridum
quotably
railway computer network
relaxation rate
relessors
reporter gene
reprotonated
rock catcher
roten
rudimentum
salivate
search mode logic
sectional flywheel
selection felling
shed a new light
shelter oneself behind
shushers
Sierra Vista
slime pond
Sobger, Sungai
sodiers
styrax liquidus
suburban coach
territorial planning
Titova, Mys
torgochs
torsional channel
tower-type launch pad
u-s
ulps
ultrasonic cleaning unit
variable endpoint
weedery