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New Campaign to Curb Radiation From CT Scans

Dec. 2, 2010 (Chicago) — Embracing the medical statement of faith to “do no hurt,” specialists today laid out a arrangement of steps pointed at checking exposure to pointless radiation during imaging tests, most notably CT scans.

Radiation, particularly repeated high-dose exposures, has been connected to a little increased risk of cancer years afterward.

Called “Picture Wisely,” the modern campaign points to guarantee “we utilize the right procedure at the proper measurements for the correct persistent,” panel member William R. Hendee, PhD, recognized professor of radiology, radiation oncology, biophysics, and bioethics at the Therapeutic College of Wisconsin in Milwaukee, tells WebMD.

Speaking at the yearly assembly of the Radiological Society of North America, the expert panel says there has been a sevenfold increment within the utilize of radiation-based imaging in the past 25 years.

Moreover, a think about presented at the meeting suggests that the normal individual is being exposed to higher doses of radiation from X-rays, angiography, and CT checks than within the past. But another consider proposes that the cancer hazard from CT scans may be overestimated, at slightest within the elderly.

Increase in Imaging

Despite the development in imaging tests over the past three decades, there has not been a comparable rise in cancer cases or deaths in the U.S., says board part Christoph Wald, MD, PhD, executive vice chairman of the office of radiology at the Lahey Clinic in Burlington, Mass., and relate professor of radiology at Tufts College in Boston.

Nevertheless, radiation is habitually portrayed contrarily in the press, with headlines in daily papers and on broadcast media shouting out its risks, Wald says.

Hendee says cancer risks have generally been assessed using a National Foundation of Sciences think about of Japanese survivors of atomic bombs dropped on Hiroshima and Nagasaki in 1945. People at the far edge of those impacts who ingested around 50 millisievert (mSv) of radiation show up to have an increased lifetime cancer risk of 0.05%, he says.

A series of CT exams might expose a individual to that much radiation, Hendee says. Since the lifetime risk of cancer for the average American’s is approximately 33%, the 0.05% expanded hazard associated with that exposure is essentially negligible on the individual level, he says. But from a public wellbeing point of view for the whole populace, it can be critical, he says.

According to the medical literature, 50 to 100 mSv of radiation is associated with “some increase in cancer frequency,” concurring to Pat Basu, MD, of Stanford College. He displayed the modern study on cancer dangers in the elderly, but was not on the board.

By comparison, 10 mainland round-trip plane flights expose a traveler to 1 mSv of radiation and an astronaut is uncovered to approximately 200 mSv per year, Basu says. Health care laborers are constrained to 20 mSv of radiation per year, he says.

Campaign to Reduce Radiation

Hendee says that the Picture Admirably campaign is built on the profoundly effective Picture Delicately initiative pointed at reducing radiation presentation to children.

“In the event that we are able to do it for kids, why not do it for everyone?” Hendee says.

As part of the activity, the board hopes all institutions that offer radiation tests put up signs with its icon, the owl, and a promise to utilize radiation wisely, he says. “It’s a constant reminder.”

Practices that the panel hopes to dispense with incorporate the utilize of tests to secure against negligence suits, Hendee says. Too, now and then doctors with a financial stake in a radiation center refer patients to that center.

Another problem: With innovation changing so rapidly, specialists may not always know which exam is most fitting, he says. As portion of the campaign, a computerized “choice framework” has been created to help guide specialists.

In the event that you’re not sure why your doctor is requesting a test, inquire, Hendee prompts.

Too, bring a record of what imaging tests you’ve got received once you visit a new facility, suggests James A. Brink, MD, chairman of diagnostic radiology at the Yale University School of Medicine.

The Image Admirably activity is backed by RSNA, the American College of Radiology, the American Association of Physicists in Medicine, and the American Society of Radiologic Technologists.

Annual Radiation Measurements

At the meeting, College of California, San Francisco researchers reported that the average annual radiation dose we receive nearly tripled over 15 years, from 0.80 mSv in 1994 to 2.3 mSv in 2008.

“A little but increasing proportion of patients gotten high measurements,” says researcher Ingrid Burger, MD, PhD.

In 1994, 0.49% and 0.04% of those considered gotten measurements of more than 50 and 100 mSv, separately. In 2008, 2.4% and 0.47% received dosages surpassing these edges, she says.

The researchers reviewed about 24 million radiation exams of individuals enlisted in seven HMOs across the country.

CTs and the Elderly

In the other ponder, Basu and colleagues used Medicare claims information on over 10 million patients to assess cancer dangers related to CT filters.

They found a chance of between 0.02% and 0.04%, “shockingly lower than we expected,” Basu tells WebMD.

The researchers too found that the proportion of patients who had imaging studies increased over time. From 1998 to 2001, for illustration 42% of patients had scans, compared with 50% of those in 2002 to 2005.

Although as it were elderly people were studied, the discoveries could apply to middle-age individuals whose organic affectability to radiation is comparative, Basu says.

Max Wintermark, MD, of the College of Virginia in Charlottesville, agrees. He notes that elderly people account for the greatest use of CT imaging.

“In more youthful patients we are continuously attempting to do something that doesn’t include radiation,” Wintermark says. “We try to utilize MRI or ultrasound instep, in case we are able to.”

A limitation of the study was that cancer risk was assessed using the National Institute of Sciences information. Patients were only taken after for up to four years, a short period amid which radiation-associated cancers might not create.

Also, “you would expect cancer chance to be lower in the elderly, who may die due to other reasons before a secondary cancer has time to manifest,” Hendee says.

Basu says a think about in which people’s radiation exposures and ensuing cancers are tracked over time is required.

The new thinks about were presented at a therapeutic conference. The findings should be considered preparatory as they have not however undergone the “peer review” prepare, in which outside specialists scrutinize the data earlier to publication in a medical journal.

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Trauma Patients Fare Poorly After Hospital Discharge

March 8, 2011 — Injury patients who survive their starting injuries are at high chance for dying within the years that follow, and the hazard is particularly tall for patients who enter nursing homes, a unused think about appears.

The analysis of more than 120,000 adults treated for trauma in Washington state suggests that hospitals are doing a much better work of keep patients alive. But near to one in six patients who survived their wounds kicked the bucket inside three years of healing center release — nearly three times the expected death rate for the populace.

And around twice as many non-elderly patients released to nursing homes passed on than did patients who went domestic following hospitalization.

This mortality distinction persisted even after analysts adjusted the data to reflect the reality that the nursing domestic patients tended to be more practically impaired than patients who were able to go domestic.

Center on Nursing Homes

The think about, distributed in TheJournal of the American Therapeutic Affiliation, is among the primary to examine long-term mortality among injury patients.

“People should not conclude from these discoveries that nursing homes are doing something off-base or that they are hurting patients,” consider co-researcher Saman Arbabi, MD, MPH, of the College of Washington, Seattle tells WebMD. “The patients who went to these offices were different, and indeed in spite of the fact that we tried to control for this, we may not have been completely successful.”

But Arbabi adds that endeavors to move forward long-term survival among injury patients ought to probably center on nursing homes.

The consider included 124,421 adults living in Washington who were hospitalized for trauma between January 1995 and December 2008. The normal age of the patients was 53; 59% were male.

More than half of patients went domestic without paid nursing and about a quarter were discharged to nursing homes. The rest went home with nursing help or went to recovery facilities.

After Healing center Release

Among the study’s major discoveries:

Nearly three times as many patients died following hospital release (21,045) as died amid their healing center remain (7,243). Hospitalization passings dropped steadily during the 14-year ponder, from 8% in 1995 to 4.9% in 2008. During the same period, deaths in the a long time taking after hospital release increased from 4.7% to 7.4%. Roughly one in three patients (34%) released to nursing homes passed on inside three years.

Arbabi credits a facilitated, statewide injury program for the moved forward survival among hospitalized patients.

“Clearly we are doing a much better job getting patients to hospitals and keeping them alive once they get there,” he says. “But the post-discharge outcomes are not as good.”

The in general passing rate inside a year of harm was approximately 10%, rising to 16% inside three years.

Death rates among patients discharged to rehabilitation facilities were not essentially diverse from those of patients who went domestic.

Nursing domestic quality-improvement educator Carol Siem, RN, MSN, tells WebMD she isn’t shocked by the discoveries. She says many younger injury patients who are sent to nursing homes have catastrophic head wounds.

Siem may be a group pioneer with Missouri’s nursing home Quality Enhancement Program.

“These patients are as a rule there since there wounds are so serious that their family individuals can’t care for them at home,” she says.

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Why Super Bowl Food Sacks a Diet

Feb. 2, 2007 — Super Bowl food may spike your count calories this Sunday unless you have a good diversion arrange.

Enter Cornell University’s Brian Wansink, PhD, and Collin Payne, PhD. Their most recent ponder gives a simple strategy to handle thoughtless eating amid the enormous amusement: just look at how much you’ve eaten.

The analysts found that understudies welcomed to a past year’s Super Bowl party ate less on the off chance that the prove of their gobbling wasn’t quickly bused absent.

“In common, it is vital to have some thought of how much you’ve got eaten,” Wansink says in a Cornell news release.

“Serve yourself onto a plate, and then stop when the plate is purge. This can be the most excellent procedure for unintended indulging at your Super Bowl party,” Wansink says. “Dish it out, eat it gradually, and halt.”

Wansink coordinates the Cornell Food and Brand Lab at Cornell College. He’s also author of Thoughtless Eating: Why We Eat More Than We Think.

Fowl Ball

“Serve yourself onto a plate, and after that halt when the plate is empty. Typically the leading methodology for unintended overeating at your Super Bowl party,” Wansink says. “Dish it out, eat it gradually, and halt.”

Wansink coordinates the Cornell Food and Brand Lab at Cornell College. He’s also author of Thoughtless Eating: Why We Eat More Than We Think.

“Serve yourself onto a plate, and after that halt when the plate is empty. Typically the finest technique for unintended overeating at your Super Bowl party,” Wansink says. “Dish it out, eat it slowly, and halt.”

Wansink directs the Cornell Food and Brand Lab at Cornell College. He’s also creator of Mindless Eating: Why We Eat More Than We Think.

Say When

The foot line from the ponder: In the event that you have got some visual report of how much you’ve eaten, you’ll slow down rather than doing an end run around your slim down.

The same methodology may too work with drinks, say the analysts.

In the event that your purge drink bottles or glasses are left on your table, you could be more aware of how much you’ve had to drink than on the off chance that purge drink containers are cleared absent.

“Usually one ally in the battle against mindless eating or drinking” in a distracting environment such as a Super Bowl party, type in Wanskin and Payne.

Their consider is due for publication in an upcoming issue of Perceptual and Engine Aptitudes, concurring to the Cornell news discharge.

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Concussions Drive Dementia Risk Decades Later

By Serena Gordon

HealthDay Columnist

TUESDAY, Jan. 30, 2018 (HealthDay News) — A genuine head damage may increment the chance for dementia even decades later, a modern, huge study recommends.

A traumatic harm to the brain — such as a concussion from a sports collision or a motor vehicle mishap — is as of now associated with short-term hazard of dementia. But the unused inquire about finds that, although the risk diminishes over time, it still proceeds for numerous a long time.

“The most finding is the strong association between a past traumatic brain harm and the chance of dementia,” said the study’s senior author, Peter Nordstrom.

“The association is more grounded for more serious or numerous traumatic brain wounds, and the association endures for more than 30 years after the trauma,” included Nordstrom, a teacher of geriatric medicine at Umea University in Sweden.

This isn’t the first ponder to link traumatic brain injuries (TBIs) and later problems with memory and thinking. A number of considers have looked at professional competitors — such as football players, boxers and mixed military arts fighters — and have found a connection to afterward serious brain troubles. These include dementia or incessant traumatic encephalopathy (CTE), a degenerative brain disease.

As with past ponders, this one can’t however demonstrate a cause-and-effect relationship or point to exactly how a TBI might trigger afterward dementia.

This think about did, however, see at a really large number of individuals from the general populace in Sweden. It started with more than 3.3 million people matured 50 or older in 2005.

From that group, the researchers found more than 164,000 individuals who had brain injuries genuine sufficient for them to seek care at an emergency division from 1964 through 2012, Nordstrom said.

The agents also looked at more than 136,000 individuals who were analyzed with dementia during the think about follow-up period.

The researchers coordinated each of the people in those two bunches with two solid individuals to serve as a control gather.

A third gather consisted of almost 47,000 kin sets, of which only one sibling had experienced a serious head injury.

Amid the primary year after a head harm, the risk of dementia was almost four- to sixfold higher. The hazard dropped quickly, but never returned to ordinary. Even 30 a long time after the brain damage, the chances of dementia were 25 percent higher, the discoveries showed.

In some cases, it’s conceivable that dementia created to begin with and contributed to the head harm, the researchers proposed.

Dr. Daniel Kaufer is director of the memory disarranges program at the College of North Carolina at Chapel Hill. He said, “This study clearly illustrates that TBI is something we need to pay attention to and track.” Kaufer was not included with the modern ponder.

“People are truly starting to pay attention to TBI and aren’t taking it delicately,” Kaufer added.

“It’s not only almost short-term consequences anymore — like whether Gronk can play within the Super Bowl this weekend,” he said, alluding to the Unused Britain Loyalists tight conclusion Rob Gronkowski, who recently suffered a concussion. “It’s concern approximately the long-term risk of creating cognitive side effects,” Kaufer explained.

Just as specialists follow tall blood weight and high cholesterol, they ought to track brain harm in a more systematic way, Kaufer said.

Dr. Ajay Misra, chairman of neurosciences at NYU Winthrop Hospital in Mineola, N.Y., said this ponder is vital generally because of its measure, and that it affirms what individuals knew instinctively.

But he famous the jury is still out on whether this relationship is causal.

Whereas investigate proceeds, the experts suggested taking steps to maintain a strategic distance from TBI whenever conceivable. A few people might select to halt playing contact sports, or not permit their child to play. “I think we’ll see more of that,” Kaufer said.

The foremost important thing to remember, however, is to protect your head. That can often be accomplished by wearing a helmet when taking part in activities such as riding a bike or a bike, he said.

The ponder was published online Jan. 30 in PLOS One.

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Risk Takers Have Less Parkinson’s

Feb. 15, 2006 — Hazard takers may be less likely to create Parkinson’s malady, concurring to a new ponder.

The report, published in the Diary of Neurology, Neurosurgery, and Psychiatry, doesn’t empower anyone to get reckless to avoid the brain illness. It too doesn’t blame play-it-safe identities for Parkinson’s.

Instead, the consider compares 106 individuals with Parkinson’s with 106 without Parkinson’s. There were less risk takers among those with Parkinson’s illness, the ponder appears.

The researchers included Andrew Dregs, MD, FRCP. Lees works in London at the University College London’s Reta Lila Weston Established of Neurological Studies and the National Hospital for Neurology and Neurosurgery.

Risk Takers, Chance Avoiders

Participants took a few mental tests. The tests gauged uneasiness, sadness, and lack of caution in seeking sensations.

Individuals scoring high for incautious sensation seeking were less likely to have Parkinson’s or misery. They were also more likely to be smokers and users of caffeine and alcohol.

Sadness has been related with Parkinson’s illness, the researchers note. They include that people who smoke, drink, and use caffeine may be less likely to create Parkinson’s.

Smoking, drinking, and using caffeine didn’t explain the comes about, type in Lees and colleagues, who aren’t suggesting those habits. They caution that their consider doesn’t prove that chance evasion causes Parkinson’s or that chance resistance prevents the illness.

In Parkinson’s disease, certain brain cells vacillate in their capacity to form dopamine, a brain chemical that helps arrange the body’s movements. As a result, dopamine levels drop.

Low dopamine levels may make individuals with Parkinson’s disease less likely to seek sensations, the researchers write. In case so, they’re not sure which comes first — hazard shirking or Parkinson’s malady.

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