Depression may raise risk of dementia
Depression and dementia have longed been linked and now new research suggests that depression may help speed the rate of a person’s cognitive decline.
For the study, published in the journal Neurology, researchers looked at whether depression is a consequence of dementia and if both conditions develop from the same problems in the brain.
The scientists analyzed 1,764 people of an average age of 77, who were a part of the Religious Orders Study and the Rush Memory and Aging Project. All participants were free of any memory or thinking problems at study’s start. Each year, for an average of 7.8 years, the participants were assessed for symptoms of depression, such as reduced appetite and loneliness and took part in tests that gauged their memory and thinking skills. During the study period 680 people died. Autopsies were performed on 582 of these individuals to identify any brain plaques or tangles related to dementia, as well as any other indications of brain damage.
But, according to the researchers, no relationship was found between the levels of brain damage among participants and the levels of depression or changes in depressive symptoms. They did find, however, that participants who developed dementia were more likely to have a higher level of depressive symptoms before they were diagnosed with dementia.
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Sourced from: Medical News Today, Researchers shed light on how depression is related to dementia
Published On: July 31, 2014
When you arrive at hospital affects heart attack survival rate
A new study suggests that your chances of surviving a heart attack could be affected at least to some degree by when you arrive at the hospital. The research from the American Heart Association found that people who come to a hospital at night, on the weekend or during a holiday have a 13 percent higher risk of dying, compared to people who arrive during normal hours.
In the U.S, each year, more than a quarter of a million people experience severe heart attacks, known to doctors as an ST elevation myocardial infarction (STEMI). If blood flow cannot be restored to the heart as soon as possible or the patient could die.
For the study, researchers compared data from 27,270 STEMI patients who arrived at the hospital during off hours and data from 15,972 STEMI patients who arrived during normal business hours. The data came from 447 U.S. hospitals and came from a period from January 2007 to September 2010.
They found that on average, it took take 56 minutes for patients arriving to the emergency room during regular work hours to receive an angioplasty, which is necessary to unblock the blood vessel. But the patients who arrived at the ER in the evenings, weekends or holidays waited an average of 72 minutes for the life-saving procedure.
One reassuring finding: The scientists did find that almost 88 percent of STEMI patients arriving within regular hours, and 79 percent arriving during off hours were treated with angioplasty within the 90-minute period recommended by the American Heart Association.
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Sourced from: Medical News Today, Heart attack survival rates ‘influenced by time of arrival at hospital’
Published On: July 31, 2014