Discover Minneapolis


d-a-n.org keyword stats



Most current MSN search phrases:

minneapolis childrens theater Minnesota Childrens Theater
childrens theater in minnesota tributary of the Mississippi River

Air Pollution Hikes Stroke Risk

The type of stroke that results when a bloodlooked at the incidence of hemorrhagic
clot travels to the brain -- called anstroke, which is caused by bleeding in the
ischemic stroke -- is more likely to occur onbrain, during the same "high pollution" days,
days when the air contains a largernotes Wellenius, but found no association
concentration of particulate matter,between the two.Reducing Exposure May Lower
according to a study published online inRiskThe air pollution in question --
Stroke: Journal of the American Heartparticulate matter smaller than 10
Association.Researchers at Beth Israelmicrometers in diameter -- includes particles
Deaconess Medical Center (BIDMC) and thefrom car and truck exhaust, power plants and
Harvard School of Public Health (HSPH)refineries. The measurements were provided by
examined air quality on a total of 37,000the US Environmental Protection Agency from
days in nine cities. Risk of hospitalizationnine US cities: Birmingham, Ala., Chicago,
for ischemic stroke was 1 percent higher onNew Haven, Conn., Cleveland, Detroit,
days with relatively high levels of airMinneapolis, Pittsburgh, Salt Lake City and
pollution, compared with low-air pollutionSeattle.The authors analyzed hospital
days, reports lead author Gregory Wellenius,admissions among a group of Medicare patients
ScD, postdoctoral fellow in cardiology atwith an average age of 79. Seventy-five
BIDMC.Third Cause of Death in US"Althoughpercent of the patients were white, and 61
these effects sound relatively small," sayspercent were female. Their findings showed
Wellenius, "given the large number of peoplethat during the course of their study, there
exposed to air pollution and the large numberwere 155,503 hospital admissions for ischemic
of people at risk for stroke ... the actualstroke.The final analysis demonstrated a 1.03
number of strokes could bepercent rise in ischemic stroke on the days
significant."Stroke is the third leadingwith the highest pollution measures."We don't
cause of death in the US, affecting more thanknow exactly what mechanisms are involved
700,000 individuals each year.A "consistentthat trigger these cardiac events," says
increased risk" for cardiac health problemsWellenius. "However, we do know that
associated with exposure to ambient airparticulates in the air promote inflammation,
particles was established in earlier researchwhich is a significant risk factor for
by Wellenius and coauthors Murray Mittleman,cardiac events; that exposure to particulates
MD, DrPH, of BIDMC's Cardiovascularcan lead to changes in heart rate and blood
Epidemiology Research Unit and Joel Schwartz,pressure; and that pollution can cause
PhD, of HSPH."Air pollution has been shown tochanges in coaguable states (related to blood
trigger heart attacks and to aggravate theclotting abilities)."The authors say that
conditions of patients with congestive heartfuture research will focus on finding out
failure," says Mittleman, who is also anwhich pollutants are most toxic, as well as
associate professor of medicine at Harvardwhich patients are at greatest risk for
Medical School."These new findings,health problems stemming from air
demonstrating that incidence of clot-basedpollution."Taken together with previous work,
strokes also increase, [are] in keeping withthese latest results support the idea that
our earlier data showing a relationshipreducing exposure to particulate matter may
between air pollution and heart and lungreduce the risk of strokes and heart
disorders," he notes.The researchers alsoattacks," they conclude.



1 A B C 44 45 46 47 48 49 50 51 52 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 81 82 83 84 85