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New study shows low-dose omega-3 intake does not raise atrial fibrillation risk

A new meta-analysis of 114,000+ participants found that low-dose omega-3 supplementation is not associated with an increased risk of atrial fibrillation, even among individuals at elevated cardiovascular risk. In contrast, high-dose prescription therapies may modestly increase AF risk in these patients.

SourceWright On Marketing & Communications·JournalCirculation Arrhythmia and Electrophysiology·TypeMeta-analysis·DateAug 3, 2026

Heart rhythm monitoring with a smartphone could save healthcare resources

A new study by Karolinska Institutet shows that daily smartphone-based heart rhythm monitoring can reduce same-day cardioversion cancellations by 94.7% and save significant healthcare resources. The method, called CORAI, uses photoplethysmography to measure small changes in blood flow, allowing for accurate heart rhythm assessment.

SourceKarolinska Institutet·JournalJAMA Cardiology·TypeRandomized controlled/clinical trial·DateJun 4, 2026

Large clinical RCT trial finds no clear added benefit of catheter ablation for preventing recurrent stroke in patients with atrial fibrillation

A nationwide Japanese trial found that catheter ablation did not reduce the risk of recurrent stroke or major cardiovascular events in patients with atrial fibrillation who had recently experienced a stroke. The study, which enrolled 251 patients and followed them for over three years, suggests that routine addition of catheter ablatio...

SourceKumamoto University·JournalJAMA Neurology·TypeRandomized controlled/clinical trial·DateMar 31, 2026

Korea University study identifies liver–metabolic disease as a key risk factor for heart failure in older adults with atrial fibrillation

A Korea University study reveals that liver metabolic disease is a key risk factor for heart failure in older adults with atrial fibrillation, with MASLD having the lowest risk and ALD carrying the highest risk. The study highlights the importance of liver health in cardiovascular disease management.

SourceKorea University College of Medicine·JournalEuropean Journal of Heart Failure·TypeObservational study·DateMar 23, 2026

Regular exercise reduces atrial fibrillation recurrence by nearly 50% after catheter ablation, study shows

A new study from CU Anschutz researchers found that regular physical activity can significantly lower post-ablation atrial fibrillation recurrence risk. Adults who engaged in moderate exercise for 30 minutes three times a week had markedly lower rates of AF recurrence compared to those who were less active.

SourceUniversity of Colorado Anschutz·JournalJournal of Interventional Cardiac Electrophysiology·DateFeb 6, 2026

Drink Up: Coffee is safe for people with A-Fib

Researchers found that drinking a cup of caffeinated coffee per day reduced Atrial Fibrillation (A-Fib) by 39% in patients with persistent atrial fibrillation. The study, funded by the National Institutes of Health, suggests that coffee may be protective against A-Fib and could potentially reduce blood pressure.

SourceUniversity of California - San Francisco·JournalJournal of the American Medical Association·TypeRandomized controlled/clinical trial·DateNov 9, 2025

Predicting and lengthening pacemaker battery life

Researchers developed an algorithm to optimize pacemaker function usage, reducing battery power consumption and potentially extending battery life by years. By switching off unnecessary features, doctors can reduce the number of surgeries needed and lower associated costs for the NHS.

SourceUniversity of Leeds·JournalPLOS One·TypeComputational simulation/modeling·DateOct 29, 2025

The heart of female elite athletes adapts differently than those of male elite athletes

Research led by Amsterdam UMC reveals the hearts of female elite athletes have different characteristics compared to their male counterparts. Female athletes exhibit dilation of the heart chambers, whereas males show thickening in combination with a dilation of the heart muscle. This finding can aid doctors in identifying possible hear...

SourceAmsterdam University Medical Center·JournalEuropean Heart Journal - Cardiovascular Imaging·TypeRandomized controlled/clinical trial·DateJun 2, 2025

Breakthrough Durham University research offers new insights into quenching electrical waves in the heart

Researchers at Durham University have developed a theoretical framework to predict the efficacy of quenching electrical pulses in excitable media, such as those found in the human heart. This breakthrough could significantly accelerate the development of more efficient defibrillation techniques for treating cardiac arrhythmias.

SourceDurham University·JournalPhysical Review E·DateJan 7, 2025

Female heart patients less likely to have additional problems fixed during surgery

Research from Michigan Medicine found that female patients with atrial fibrillation and tricuspid regurgitation are less likely to receive simultaneous procedures during cardiac surgery, despite guideline recommendations. This disparity may be related to perceived higher risk among women.

SourceMichigan Medicine - University of Michigan·JournalJournal of Thoracic and Cardiovascular Surgery·TypeObservational study·DateJun 27, 2024

A new technique offers improved diagnostic precision and a route to personalized therapy for a common arrhythmia that affects more than 10 million people in Europe

A new diagnostic method assesses electrical and mechanical activity in the heart during atrial fibrillation, providing personalized assessment of atrial remodeling. This can help predict disease progression and guide treatment.

SourceCentro Nacional de Investigaciones Cardiovasculares Carlos III (F.S.P.)·JournalNature Communications·TypeExperimental study·DateAug 4, 2023

The Texas Heart Institute and The University of Texas at Austin awarded a National Institutes of Health grant to develop injectable hydrogel electrodes to prevent ventricular arrhythmias

The Texas Heart Institute and The University of Texas at Austin receive a four-year, $2.37 million NIH grant to develop injectable hydrogel electrodes for preventing and managing ventricular arrhythmias. Researchers have already demonstrated the feasibility of pacing the heart using the hydrogel in a porcine model.

Research brief: Identifying patients with sarcoidosis at risk for bad cardiac outcomes

Researchers have identified specific magnetic resonance imaging features that indicate cardiac sarcoidosis patients are at higher risk for adverse cardiac outcomes, including ventricular arrhythmias. These findings suggest that patients with certain cardiac MRI features may benefit from implantable cardioverter defibrillators.

SourceUniversity of Minnesota Medical School·JournalJAMA Cardiology·TypeObservational study·DateOct 4, 2022

Calculating a dangerous heartbeat

A team of researchers from Flinders University has developed a single mathematical equation that can accurately model and predict the behavior of ventricular fibrillation, a life-threatening heart rhythm. The equation uses principles from renewal theory to predict the population dynamics of 'rotors' found in the heart during VF.

SourceFlinders University·JournalHeart Rhythm·TypeObservational study·DateNov 7, 2021

3D mapping of post-infarction scarring increases the prognostic potential of cardiac magnetic resonance imaging

A multidisciplinary team developed a method for identifying 3-dimensional features of scar tissue after myocardial infarction, enhancing cardiac magnetic resonance imaging's prognostic potential. The new method reveals significant correlation between low scar transmurality and ventricular tachycardia episodes, improving clinical practice.

SourceCentro Nacional de Investigaciones Cardiovasculares Carlos III (F.S.P.)·JournalScientific Reports·TypeExperimental study·DateSep 28, 2021

The deadly toxin acrolein has a useful biological role

Researchers at RIKEN discovered that acrolein can combine with polyamines to form substances that prevent the aggregation of amyloid-beta peptides, a process linked to Alzheimer's disease. The findings suggest that acrolein may have an anti-fibrillation effect, potentially influencing the progression of neurological disorders.

SourceRIKEN·JournalAdvanced Science·DateJun 1, 2016

Chaos in the heart

A team of scientists has discovered that chaotic wave patterns in the heart's electrical pulses can be controlled and potentially terminated using a weak periodic modulation. This discovery could lead to new methods for treating cardiac fibrillation, a life-threatening condition.

SourceMax-Planck-Gesellschaft·JournalScience·DateJan 31, 2003