Featured Research

from universities, journals, and other organizations

Consumption Of Fish Oil Does Not Appear To Protect Against Abnormal Heart Rhythms

Date:
June 15, 2006
Source:
JAMA and Archives Journals
Summary:
Patients with an implantable cardioverter defibrillator did not have a significantly lower risk of serious abnormal heart rhythms or death by consuming fish oil supplements, which had been thought to have a protective effect, according to a study in the June 14 issue of JAMA.

Patients with an implantable cardioverter defibrillator did not have a significantly lower risk of serious abnormal heart rhythms or death by consuming fish oil supplements, which had been thought to have a protective effect, according to a study in the June 14 issue of JAMA.

Sudden cardiac death is responsible for approximately 50 percent of all death from cardiovascular disease in the Western world. Epidemiological studies indicate that intake of very-long-chain n-3 polyunsaturated fatty acids (omega-3 PUFAs) as present in fish or fish oil is associated with a reduction in cardiovascular death, possibly by reducing susceptibility to cardiac arrhythmia, according to background information in the article. Recent trials on fish oil and ventricular arrhythmia (abnormal heart rhythm) in patients with implantable cardioverter defibrillators (ICDs; an electrical device that can correct an abnormal heart rhythm) yielded inconclusive results.

Ingeborg A. Brouwer, Ph.D., of Wageningen University, the Netherlands, and colleagues tested the effect of omega-3 PUFAs from fish on the incidence of recurrent ventricular arrhythmia and all-cause death in a large, placebo-controlled, randomized trial of patients with ICDs. The Study on Omega-3 Fatty acids and ventricular Arrhythmia (SOFA) was conducted at 26 cardiology clinics across Europe and included 546 patients with ICDs and prior documented ventricular tachycardia (VT) or ventricular fibrillation (VF) (both are types of serious cardiac arrhythmias). Patients were randomly assigned to receive 2 grams/day of fish oil in capsules (n = 273) or placebo capsules (n = 273) for a median (midpoint) period of 356 days.

In total, 75 patients (27 percent) in the fish oil group and 81 patients (30 percent) in the placebo group received appropriate ICD intervention for VT or VF. Event-free survival did not substantially improve in the fish oil group. "In this large randomized trial we did not find evidence of strong protective effect of intake of omega-3 PUFAs from fish oil against ventricular arrhythmia in patients with ICDs. In contrast to others, we did not find that fish oil may have proarrhythmic properties," the authors conclude.


Story Source:

The above story is based on materials provided by JAMA and Archives Journals. Note: Materials may be edited for content and length.


Cite This Page:

JAMA and Archives Journals. "Consumption Of Fish Oil Does Not Appear To Protect Against Abnormal Heart Rhythms." ScienceDaily. ScienceDaily, 15 June 2006. <www.sciencedaily.com/releases/2006/06/060615082129.htm>.
JAMA and Archives Journals. (2006, June 15). Consumption Of Fish Oil Does Not Appear To Protect Against Abnormal Heart Rhythms. ScienceDaily. Retrieved October 1, 2014 from www.sciencedaily.com/releases/2006/06/060615082129.htm
JAMA and Archives Journals. "Consumption Of Fish Oil Does Not Appear To Protect Against Abnormal Heart Rhythms." ScienceDaily. www.sciencedaily.com/releases/2006/06/060615082129.htm (accessed October 1, 2014).

Share This



More Health & Medicine News

Wednesday, October 1, 2014

Featured Research

from universities, journals, and other organizations


Featured Videos

from AP, Reuters, AFP, and other news services

Some Positive Ebola News: Outbreak 'Contained' In Nigeria

Some Positive Ebola News: Outbreak 'Contained' In Nigeria

Newsy (Sep. 30, 2014) The CDC says a new case of Ebola has not been reported in Nigeria for more than 21 days, leading to hopes the outbreak might be nearing its end. Video provided by Newsy
Powered by NewsLook.com
UN Ebola Mission Head: Immediate Action Is Crucial

UN Ebola Mission Head: Immediate Action Is Crucial

AFP (Sep. 30, 2014) The newly appointed head of the United Nations Mission for Ebola Emergency Response (UNMEER), Anthony Banbury, outlines operations to tackle the virus. Duration: 00:39 Video provided by AFP
Powered by NewsLook.com
CDC Confirms First Case of Ebola in US

CDC Confirms First Case of Ebola in US

AP (Sep. 30, 2014) The CDC has confirmed the first diagnosed case of Ebola in the United States. The patient is being treated at a Dallas hospital after traveling earlier this month from Liberia. (Sept. 30) Video provided by AP
Powered by NewsLook.com
New Breast Cancer Drug Extends Lives In Clinical Trial

New Breast Cancer Drug Extends Lives In Clinical Trial

Newsy (Sep. 30, 2014) In a clinical trial, breast cancer patients lived an average of 15 months longer when they received new drug Perjeta along with Herceptin. Video provided by Newsy
Powered by NewsLook.com

Search ScienceDaily

Number of stories in archives: 140,361

Find with keyword(s):
Enter a keyword or phrase to search ScienceDaily for related topics and research stories.

Save/Print:
Share:

Breaking News:

Strange & Offbeat Stories


Health & Medicine

Mind & Brain

Living & Well

In Other News

... from NewsDaily.com

Science News

Health News

Environment News

Technology News



Save/Print:
Share:

Free Subscriptions


Get the latest science news with ScienceDaily's free email newsletters, updated daily and weekly. Or view hourly updated newsfeeds in your RSS reader:

Get Social & Mobile


Keep up to date with the latest news from ScienceDaily via social networks and mobile apps:

Have Feedback?


Tell us what you think of ScienceDaily -- we welcome both positive and negative comments. Have any problems using the site? Questions?
Mobile: iPhone Android Web
Follow: Facebook Twitter Google+
Subscribe: RSS Feeds Email Newsletters
Latest Headlines Health & Medicine Mind & Brain Space & Time Matter & Energy Computers & Math Plants & Animals Earth & Climate Fossils & Ruins