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Since then, there has been a growing interest in ALA, ω-3 fatty acid family precursor, as a cardioprotective nutrient. Much of the interest has focused on the potential antiarrhythmic effect of longer chain ω-3 fatty acids, DHA and EPA, derived from fish.
We therefore concluded it important to test wether vegetable source ω-3 also had antiarrhythmic effects, as shown in animals by Leaf and McLennan, since this might also explain the beneficial effects seen on cardiovascular mortality in the Lyon Diet Heart Study.
Objective: To determine the effect of an ALA rich diet in reducing recurrence of atrial fibrillation as a further example of a cardiac arrhythmia.
Design: Randomized parallel design efficacy study.
Setting: Three university hospital centers in the Bordeaux region, France.
Patients: 98 patients randomized immediately after successful atrial fibrillation electrical cardioversion.
Intervention: A canola margarine and oil, versus a conventional diet (control), with a one year follow-up.
Main outcome measure: Length of time to first recurrence of atrial fibrillation.
Significance: If ALA is antiarrhythmic, this action may explain its cardioprotective effect in clinical trials and cohort studies.
Allocation: Randomized, Control: Active Control, Endpoint Classification: Efficacy Study, Intervention Model: Parallel Assignment, Masking: Open Label, Primary Purpose: Prevention
Alpha-linolenic enriched diet
Assistance Publique - Hôpitaux de Paris
Published on BioPortfolio: 2014-08-27T03:41:12-0400
Omega-3 fatty acids are "good fats," and are among the most important nutrients lacking in Western diets today. The average person in developing countries consumes less than 100 mg of DHA ...
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An alpha-linolenic acid (ALA) rich diet in the Lyon Heart Study reduced sudden cardiac deaths possibly by reducing cardiac arrhythmias and ventricular fibrillation (Lancet 1994). Since the...
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Rapid, irregular atrial contractions caused by a block of electrical impulse conduction in the right atrium and a reentrant wave front traveling up the inter-atrial septum and down the right atrial free wall or vice versa. Unlike ATRIAL FIBRILLATION which is caused by abnormal impulse generation, typical atrial flutter is caused by abnormal impulse conduction. As in atrial fibrillation, patients with atrial flutter cannot effectively pump blood into the lower chambers of the heart (HEART VENTRICLES).
Long-term changes in the electrophysiological parameters and/or anatomical structures of the HEART ATRIA that result from prolonged changes in atrial rate, often associated with ATRIAL FIBRILLATION or long periods of intense EXERCISE.
A cardiotonic glycoside obtained mainly from Digitalis lanata; it consists of three sugars and the aglycone DIGOXIGENIN. Digoxin has positive inotropic and negative chronotropic activity. It is used to control ventricular rate in ATRIAL FIBRILLATION and in the management of congestive heart failure with atrial fibrillation. Its use in congestive heart failure and sinus rhythm is less certain. The margin between toxic and therapeutic doses is small. (From Martindale, The Extra Pharmacopoeia, 30th ed, p666)
A plant genus of the family LAMIACEAE that is a source of perilla alcohol and the oil is rich in alpha-linolenic acid (alpha-18:3).
Long chain organic acid molecules that must be obtained from the diet. Examples are LINOLEIC ACIDS and LINOLENIC ACIDS.
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