Feature | May 30, 2014

Study Finds Bariatric Surgery Prevents Obese Patients From Developing Atrial Fibrillation

First-of-its-kind results presented at Heart Rhythm 2014 shows positive correlation between weight loss surgery and reduced risk of atrial fibrillation

May 30, 2014 — New research has found that bariatric surgery is an effective way to control weight in morbidly obese patients who are at risk for developing atrial fibrillation (AF). Bariatric or weight loss surgery is an operation on the stomach that limits food intake and is typically recommended for patients who are unable to lose weight on their own through diet and exercise.

The first study of its kind to look at the relationship between AF and bariatric surgery on a large patient population was presented at Heart Rhythm 2014, the Heart Rhythm Society’s (HRS) 35th annual scientific sessions.

According to the Centers for Disease Control and Prevention, more than two-thirds of the adult population in the United States is considered to be overweight or obese. Obesity is a known risk factor for arrhythmias like AF, and other risk factors for AF include smoking, high blood pressure and high cholesterol. AF is the most common arrhythmia and affects more than 2.7 million American adults. It is characterized by a rapid and irregular heartbeat when the top chambers of the heart (the atria) quiver (fibrillate) erratically, sometimes faster than 300 times per minute.

“Obesity has become an epidemic in our culture and prevention efforts are more important now than ever,” said Yong-Mei Cha, M.D., FHRS, professor of medicine at Mayo Clinic. “Bariatric surgery is a preventative measure that obese patients may choose to take, and our study shows that the surgery helps them not only lose weight, but also reduces their risk of developing a serious cardiac condition like AF. It is important to continue the conversation about how to help prevent this epidemic from becoming even more widespread.”

The retrospective study was conducted in 438 patients with a body mass index (BMI) of 40 or higher and identified as good candidates for bariatric surgery. Of these patients, 326 elected to undergo surgery for weight reduction and 112 were controls who were managed medically. The diagnosis of AF was documented by electrocardiogram (ECG) or ambulatory monitors and metabolic profiles were collected at baseline and follow-up.

The baseline BMI was different in the patients that underwent surgery versus those who did not have surgery (46.9 vs. 43.2kg/m2). The prevalence of AF at baseline was not significantly different between the two groups (surgical 3.7 percent vs. control 4.5 percent p=0.63) at baseline. After a mean follow-up duration of 7.2±3.7 years, new onset of AF occurred in 3.1 percent of the surgical group, significantly lower than 12.5 percent (p<0.01) in the medically treated group. Additionally, the surgical group had a significant reduction in BMI and improvement in metabolic profile compared to the control group.

For more information: www.hrsonline.org

Related Content

St. Jude Medical, HeartMate 3 LVAS, MOMENTUM 3 IDE study results, AHA Scientific Sessions 2016
News | Ventricular Assist Devices (VAD)| December 08, 2016
St. Jude Medical Inc. announced results of the MOMENTUM 3 U.S. IDE Clinical Study during a late-breaking clinical trial...
INRatio, Alere, Abbott, I and R testing, INR testing
Feature | Point of Care Testing| December 07, 2016
December 7, 2016 — Abbott has filed a complaint to terminate its proposed acquisition of Alere based on the substanti
PET, F-18 florbetaben, cardiac amyloidosis, Princess Alexandria Hospital

In a pilot study, F-18-florbetaben PET imaging appeared promising for differentiating between cardiac amyloidosis and hypertensive heart disease. Image courtesy of W. Phillip Law/Princess Alexandra Hospital, Brisbane, Australia.

News | Nuclear Imaging| December 06, 2016
Researchers at Princess Alexandra Hospital, Brisbane, Australia, have demonstrated that cardiac amyloidosis (abnormal...
TCT 2016, TCT.16, main arena, late breaking trials, transcatheter cardiovascular therapeutics

There were several hot topics that came out of the 2016 Transcatheter Cardiovascular Therapeutics (TCT) annual meeting Oct. 29 - Nov. 2, which made this month's top 20 list, including several videos. Number 4 on the list of content was the result of the EXCEL Trial key TCT late-breaker, which showed stenting is equal in outcomes to surgery for the first time, when using one of the latest generation drug-eluting stents. 

Feature | December 05, 2016
December 5, 2016 — Here is the list of the top 20 most popular pieces of content on the Diagnostic and Interventional
coronary CT angiography, CCTA, alcohol consumption, CAD, coronary artery disease, RSNA 2016
News | CT Angiography (CTA)| November 29, 2016
Researchers using coronary computed tomography angiography (CCTA) found no association between light to moderate...
News | Cath Lab| November 21, 2016
November 21, 2016 – A single-center study sponsored by the National Institutes of Health (NHLBI) failed to show an ea
InspireMD, CGuard embolic protection system, EPS, clinical data, internal carotid artery stenosis, ICA
News | Stents Carotid| November 18, 2016
November 18, 2016 — InspireMD Inc.
Boston Scientific, HeartLogic Heart Failure Diagnostic Service, MultiSENSE trial data, AHA Scientific Sessions 2016
News | Heart Failure| November 18, 2016
Boston Scientific recently announced results from the first clinical trial evaluating the performance of the HeartLogic...
cardiac rehabilitation, depression, death risk, heart surgery, Intermountain Medical Center Heart Institute, AHA Scientific Sessions 2016
News | Cardiac Rehabilitation| November 15, 2016
Depression has been known to be associated with poor cardiovascular outcomes. But if patients who are depressed attend...
atrial fibrillation, warfarin, dementia, Intermountain Medical Center Heart Institute, American Heart Association, AHA Scientific Sessions 2016
News | Atrial Fibrillation| November 15, 2016
Atrial fibrillation patients who use warfarin to lower risk of stroke are at higher risk of developing dementia than...
Overlay Init