Navigation Links
Abnormal Heart Rhythm Linked to Alzheimer's
Date:4/16/2010

Cardiovascular disease appears to be a major risk factor for dementia, expert says

FRIDAY, April 16 (HealthDay News) -- People with atrial fibrillation, a form of abnormal heart rhythm, are more likely than others to develop dementia, including Alzheimer's disease, a new study finds.

The presence of atrial fibrillation also predicted higher death rates in dementia patients, especially among younger patients in the group studied, meaning under the age of 70.

"This leaves us with the finding that atrial fibrillation, independent of everything else, is a risk factor [for dementia]," said Dr. Gary Kennedy, director of geriatric psychiatry at Montefiore Medical Center in New York City. "This is adding one more brick in the road toward understanding that cardiovascular disease is a major risk factor for dementia."

"Alzheimer's disease, in particular, is one where we don't quite understand the risk factors and what causes it, so studies [like this] that try to investigate the causative effect will help us understand that and ultimately design therapies and approaches to prevent or minimize disease," added Dr. Jared Bunch, lead author of a study appearing in the April edition of the HeartRhythm Journal and a cardiologist/ electrophysiologist with Intermountain Medical Center in Murray, Utah.

This study, however, was not specifically set up to establish a direct cause-and-effect relationship.

The authors looked at 37,025 patients without atrial fibrillation or dementia, aged 60 to 90, over a five-year period.

Individuals who developed atrial fibrillation had a higher risk of all types of dementia, even when other risk factors were taken into account. Alzheimer's disease is by far the most common form of dementia.

More surprising was that those in the younger group -- under age 70 -- who had atrial fibrillation had the highest risk of developing dementia, even though dementia is normally associated with aging. People in this group were also at a 38 percent higher risk of dying.

Among the 764 patients who developed both conditions, diagnosis of atrial fibrillation usually happened first, followed by a diagnosis of dementia. Sometimes the diagnoses occurred simultaneously, the researchers noted.

The authors hypothesized that both atrial fibrillation and dementia may arise from the same risk factors, such as hypertension. Another possibility is that atrial fibrillation increases inflammation, and dementia has been shown to be higher in people with signs of systemic inflammation. Investigating whether treatment of hypertension and/or inflammation in AF patients might help curb the risk of dementia is an area of future study, the researchers added.

"From a public health perspective, the best thing we can do to decrease the coming epidemic of Alzheimer's disease is to do a much better, more aggressive job of helping people with heart disease," Kennedy said. "That means diet and exercise, of course -- everyone knows that. We need to look at obstacles that people encounter beyond their own behavior, obstacles we put up environmentally in the workplace, in the school, that keep people from having better diet and exercise. A heart-healthy diet and lifestyle are really the best means we have available to prevent dementia."

About 2.2 million Americans have atrial fibrillation, while an estimated 5.5 million suffer from Alzheimer's.

More information

The American Heart Association has more on atrial fibrillation.



SOURCES: Jared Bunch, M.D., cardiologist and electrophysiologist, Intermountain Medical Center, Murray, Utah; Gary Kennedy, M.D., director, geriatric psychiatry, Montefiore Medical Center, New York City; April 2010 Heart Rhythm Journal


'/>"/>
Copyright©2010 ScoutNews,LLC.
All rights reserved

Related medicine news :

1. Newborns of Smokers Have Abnormal Blood Pressure
2. Brain Abnormalities in Parkinson's Patients Develop Before Symptoms Occur, According to Feinstein Scientists
3. Parkinsons patients who are pathological gamblers also display abnormal social behavior
4. Surgeons Create Palate for Baby with Rare Facial Abnormality
5. Overweight children may develop back pain and spinal abnormalities
6. Overweight Children may Develop Back Pain and Spinal Abnormalities
7. New study finds 70 percent of able-bodied hockey players have abnormal hip and pelvis MRIs
8. Autism Consortium study in Pediatrics shows CMA finds more genetic abnormalities than current tests
9. Mount Sinai researchers are the first to identify heart abnormalities in World Trade Center workers
10. Researchers ID brain abnormalities in children exposed to methamphetamine in utero
11. New research identifies modifiable risk factors for heart disease
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:10/13/2017)... ... , ... Yisrayl Hawkins, Pastor and Overseer at The House of Yahweh, has ... least understood books in the Holy Scriptures, Revelation. The Book of Revelation paints a ... centuries. Many have tossed it off as mere rubbish, but Yisrayl Hawkins says that ...
(Date:10/13/2017)... (PRWEB) , ... October 13, 2017 , ... “The Journey: ... faced every danger possible to save lost souls in the Philippines. “The Journey: From ... Carole is a dedicated teacher of the Bible. She has taught all ages and ...
(Date:10/12/2017)... San Francisco, CA (PRWEB) , ... October 12, ... ... and Dr. Cheng, are now treating sleep apnea using cutting-edge Oventus ... sleep apnea, a serious sleep disorder characterized by frequent cessation in breathing. Oral ...
(Date:10/12/2017)... ... , ... IsoComforter, Inc. ( https://isocomforter.com ), one of the Nation’s ... design of the shoulder pad. The shoulder pad provides optimal support and full ... while using cold therapy. By utilizing ice and water that is circulated from an ...
(Date:10/12/2017)... ... 2017 , ... Information about the technology: , Otomagnetics has ... prevention of a major side effect of chemotherapy in children. Cisplatin and carboplatin ... cisplatin, hearing loss is FDA listed on-label as a dose limiting toxicity. Hearing ...
Breaking Medicine News(10 mins):
(Date:9/22/2017)... 2017  As the latest Obamacare repeal effort moves ... (R-LA) and Lindsey Graham (R-SC) medical ... device industry is in an odd place.  The industry ... excise tax on medical device sales passed along with ... patients, increased visits and hospital customers with the funding ...
(Date:9/18/2017)... , Pa. and KALAMAZOO, Mich. , Sept. ... Penn. , and OptiMed Specialty Pharmacy of ... partnership to offer a strategic hub service that expedites ... highly sought-after personal spirometer, Spiro PD 2.0, and wellness ... A spirometer is a medical device used to measure ...
(Date:9/12/2017)... N.J. , Sept. 12, 2017  Consumer reviews on the ... Hearing as the number one company for hearing aids, ranking ... and fifteen other brands. ... Embrace Hearing Named #1 by Consumers For Hearing Aids ... Embrace Hearing is an online store that provides high ...
Breaking Medicine Technology: