Navigation Links
Lupus, Rheumatoid Arthritis May Raise Risk of Abnormal Heart Rhythm
Date:5/8/2011

By Ellin Holohan
HealthDay Reporter

FRIDAY, May 6 (HealthDay News) -- People with two common inflammatory diseases stand a higher chance of developing a heart condition that is strongly associated with stroke, a new study suggests.

The study, done at the University of Arkansas for Medical Sciences, found that patients with lupus and rheumatoid arthritis have a 60 percent increased risk for atrial fibrillation, an abnormal heart rhythm (arrhythmia) linked to stroke.

Pointing to a recent jump in atrial fibrillation cases, one of the study's authors said it was important to understand all the possible sources of the disease.

"We are in the middle of an epidemic of AF (atrial fibrillation)," said Dr. Abhishek Deshmukh, a cardiology fellow at the University of Arkansas for Medical Sciences Medical Center in Little Rock and one of the study's authors. "The numbers have gone sky high as people are living longer. AF tends to affect older people more."

About 2.2 million Americans have atrial fibrillation, according to the American Heart Association. The condition causes the heart to beat erratically and fail to pump all the blood out of the atria, two upper heart chambers. Because the blood pools, it may produce clots, which the heart "throws" from the chamber; the clots may then lodge in an artery in the brain, causing a stroke. About 15 percent of strokes occur this way, according to the association.

Deshmukh said researchers suspected that atrial fibrillation might be linked to systemic lupus erythematosus (SLE) and rheumatoid arthritis because the two autoimmune conditions cause inflammation, which scientists believe plays a role in heart disease. Almost 3 million Americans have one of the two diseases, according to the Arthritis Foundation and the Lupus Foundation of America.

Atrial fibrillation undermines people's quality of life and increases the risk of dying, said Deshmukh, adding that it is associated with congestive heart failure, diabetes, and high blood pressure.

Signs of atrial fibrillation include fluttering of the heart, dizziness, sweating, fatigue, confusion, weakness, shortness of breath and anxiety, although some patients display no symptoms. Many drugs are used to treat it, including the anticoagulant warfarin, which can reduce the risk of death by 68 percent for those with the illness, according to the heart association.

The study findings were slated to be presented Friday in San Francisco at the Heart Rhythm Society meeting.

The study, taking information from a large national database, looked at 416,786 patients older than 65, who were discharged from 1,200 hospitals around the United States after treatment for atrial fibrillation. The study controlled for factors such as age, sex, demographic information, and other illnesses.

In an initial analysis, 2.73 percent of patients with rheumatoid arthritis or lupus were found to have atrial fibrillation, compared to 1.7 percent for those unaffected by either condition.

After adjusting for confounding factors, the researchers found frequency of the heart arrhythmia was 1.6 times higher in patients diagnosed with one of the autoimmune conditions, an increased risk of 60 percent.

While the study found an association between the two diseases and the heart condition, it did not prove a cause-and-effect. And because it was presented at a medical meeting, its findings should be considered preliminary until published in a peer-reviewed journal.

Both lupus and rheumatoid arthritis are genetically based but are believed to have environmental triggers, according to Dr. Olivia Ghaw, a rheumatologist at Mount Sinai Medical Center in New York City. Women are far more likely to be affected, with estrogen playing a possible role, but no definitive answers have been found, she said.

Ghaw said that because the two autoimmune diseases "are systemic," potentially involving almost any organ in the body, it makes sense they could play a role in heart disease. She advised those affected to pay close attention to their health.

"Patients really need to be in touch with their physician so they can be screened and watch out for these other things (heart problems)," said Ghaw.

While both conditions' symptoms include painfully inflamed joints and possibly fever, lupus also causes skin rashes. Onset of lupus often occurs in late teens or early adulthood, but rheumatoid arthritis tends to start later, between the ages of 30 and 50, according to the Arthritis Foundation. A distinct but linked form of rheumatoid arthritis affects children.

Those with rheumatoid arthritis usually have a normal lifespan, but lupus can shorten people's lives because it often affects kidney function and other important organs, said Ghaw.

More information

To learn more about atrial fibrillation, visit the American Heart Association.

SOURCES: Olivia Ghaw, M.D., assistant professor of medicine, rheumatology, Mount Sinai Medical Center, New York City; Abhishek Deshmukh, M.D., cardiology fellow, University of Arkansas for Medical Sciences Medical Center, Little Rock, Ark.; Heart Rhythm Society presentation, abstract, May 6, 2011


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

Related medicine news :

1. Urine protein test might help diagnose kidney damage from lupus, UT Southwestern researchers find
2. Almost three quarters of women with rheumatoid arthritis worldwide suffer pain daily
3. Stomach Bacteria Might Trigger Rheumatoid Arthritis
4. Partners grieve rheumatoid arthritis diagnosis as much as patients
5. Women who consume large amounts of tea have increased risk of rheumatoid arthritis
6. Sex lives of patients are negatively affected by rheumatoid arthritis and SLE
7. New Approach to Rheumatoid Arthritis
8. Majority of Ontarians suffering from rheumatoid arthritis not receiving needed speciality care
9. Could Drinking Help Thwart Rheumatoid Arthritis?
10. New way of classifying rheumatoid arthritis aimed at identifying the disease earlier
11. Rheumatoid arthritis signaling protein reverses Alzheimers disease in mouse model
Post Your Comments:
*Name:
*Comment:
*Email:
Related Image:
Lupus, Rheumatoid Arthritis May Raise Risk of Abnormal Heart Rhythm
(Date:6/25/2016)... ... ... First Choice Emergency Room , the largest network of independent freestanding emergency ... its new Mesquite-Samuell Farm facility. , “We are pleased to announce Dr. Ogunleye ... M. Muzzarelli, Executive Medical Director of First Choice Emergency Room. , Dr. Ogunleye ...
(Date:6/25/2016)... ... June 25, 2016 , ... Dr. Calvin Johnson has ... he has implemented orthobiologic procedures as a method for treating his patients. The ... first doctors to perform the treatment. Orthobiologics are substances that orthopaedic surgeons use ...
(Date:6/25/2016)... ... June 25, 2016 , ... Conventional wisdom preaches the benefits ... terms of the latter, setting the bar too high can result in disappointment, perhaps ... slow progress toward their goal. , Research from PsychTests.com reveals that ...
(Date:6/24/2016)... ... June 24, 2016 , ... Those who have experienced traumatic events may ... to unhealthy avenues, such as drug or alcohol abuse, as a coping mechanism. To ... for healthy coping following a traumatic event. , Trauma sufferers tend to feel a ...
(Date:6/24/2016)... ... ... a crisis. Her son James, eight, was out of control. Prone to extreme mood shifts ... upset him, he couldn’t control his emotions,” remembers Marcy. “If there was a knife ... and say he was going to kill them. If we were driving on the ...
Breaking Medicine News(10 mins):
(Date:6/24/2016)... DUBLIN , June 24, 2016 ... "The World Market for Companion Diagnostic Tests" report to ... World Market for Companion Diagnostics The World ... diagnostic and personalized medicine diagnostics. Market analysis in the report ... Diagnostics Test Market (In Vitro Diagnostic Kits) by Region (N. ...
(Date:6/24/2016)... 2016  Arkis BioSciences, a leading innovator in ... durable cerebrospinal fluid treatments, today announced it has ... is led by Innova Memphis, followed by Angel ... investors.  Arkis, new financing will accelerate the commercialization ... release of its in-licensed Endexo® technology. ...
(Date:6/23/2016)... DUBLIN , June 23, 2016 ... the "Pharmaceutical Excipients Market by Type (Organic Chemical ... Preservative), Formulation (Oral, Topical, Coating, Parenteral) - Global Forecast ... The global pharmaceutical excipients ... 2021 at a CAGR of 6.1% in the forecast ...
Breaking Medicine Technology: