Articles tagged with Atrial Fibrillation
Comprehensive exploration of living organisms, biological systems, and life processes across all scales from molecules to ecosystems. Encompasses cutting-edge research in biology, genetics, molecular biology, ecology, biochemistry, microbiology, botany, zoology, evolutionary biology, genomics, and biotechnology. Investigates cellular mechanisms, organism development, genetic inheritance, biodiversity conservation, metabolic processes, protein synthesis, DNA sequencing, CRISPR gene editing, stem cell research, and the fundamental principles governing all forms of life on Earth.
Comprehensive medical research, clinical studies, and healthcare sciences focused on disease prevention, diagnosis, and treatment. Encompasses clinical medicine, public health, pharmacology, epidemiology, medical specialties, disease mechanisms, therapeutic interventions, healthcare innovation, precision medicine, telemedicine, medical devices, drug development, clinical trials, patient care, mental health, nutrition science, health policy, and the application of medical science to improve human health, wellbeing, and quality of life across diverse populations.
Comprehensive investigation of human society, behavior, relationships, and social structures through systematic research and analysis. Encompasses psychology, sociology, anthropology, economics, political science, linguistics, education, demography, communications, and social research methodologies. Examines human cognition, social interactions, cultural phenomena, economic systems, political institutions, language and communication, educational processes, population dynamics, and the complex social, cultural, economic, and political forces shaping human societies, communities, and civilizations throughout history and across the contemporary world.
Fundamental study of the non-living natural world, matter, energy, and physical phenomena governing the universe. Encompasses physics, chemistry, earth sciences, atmospheric sciences, oceanography, materials science, and the investigation of physical laws, chemical reactions, geological processes, climate systems, and planetary dynamics. Explores everything from subatomic particles and quantum mechanics to planetary systems and cosmic phenomena, including energy transformations, molecular interactions, elemental properties, weather patterns, tectonic activity, and the fundamental forces and principles underlying the physical nature of reality.
Practical application of scientific knowledge and engineering principles to solve real-world problems and develop innovative technologies. Encompasses all engineering disciplines, technology development, computer science, artificial intelligence, environmental sciences, agriculture, materials applications, energy systems, and industrial innovation. Bridges theoretical research with tangible solutions for infrastructure, manufacturing, computing, communications, transportation, construction, sustainable development, and emerging technologies that advance human capabilities, improve quality of life, and address societal challenges through scientific innovation and technological progress.
Study of the practice, culture, infrastructure, and social dimensions of science itself. Addresses how science is conducted, organized, communicated, and integrated into society. Encompasses research funding mechanisms, scientific publishing systems, peer review processes, academic ethics, science policy, research institutions, scientific collaboration networks, science education, career development, research programs, scientific methods, science communication, and the sociology of scientific discovery. Examines the human, institutional, and cultural aspects of scientific enterprise, knowledge production, and the translation of research into societal benefit.
Comprehensive study of the universe beyond Earth, encompassing celestial objects, cosmic phenomena, and space exploration. Includes astronomy, astrophysics, planetary science, cosmology, space physics, astrobiology, and space technology. Investigates stars, galaxies, planets, moons, asteroids, comets, black holes, nebulae, exoplanets, dark matter, dark energy, cosmic microwave background, stellar evolution, planetary formation, space weather, solar system dynamics, the search for extraterrestrial life, and humanity's efforts to explore, understand, and unlock the mysteries of the cosmos through observation, theory, and space missions.
Comprehensive examination of tools, techniques, methodologies, and approaches used across scientific disciplines to conduct research, collect data, and analyze results. Encompasses experimental procedures, analytical methods, measurement techniques, instrumentation, imaging technologies, spectroscopic methods, laboratory protocols, observational studies, statistical analysis, computational methods, data visualization, quality control, and methodological innovations. Addresses the practical techniques and theoretical frameworks enabling scientists to investigate phenomena, test hypotheses, gather evidence, ensure reproducibility, and generate reliable knowledge through systematic, rigorous investigation across all areas of scientific inquiry.
Study of abstract structures, patterns, quantities, relationships, and logical reasoning through pure and applied mathematical disciplines. Encompasses algebra, calculus, geometry, topology, number theory, analysis, discrete mathematics, mathematical logic, set theory, probability, statistics, and computational mathematics. Investigates mathematical structures, theorems, proofs, algorithms, functions, equations, and the rigorous logical frameworks underlying quantitative reasoning. Provides the foundational language and tools for all scientific fields, enabling precise description of natural phenomena, modeling of complex systems, and the development of technologies across physics, engineering, computer science, economics, and all quantitative sciences.
The RE-LY study found dabigatran to be more effective than warfarin in preventing stroke in patients with atrial fibrillation. The higher dose of dabigatran significantly reduces stroke risk by 34% compared to warfarin, while the lower dose has a similar effect but with less major bleeding.
A study found that high coffee consumption is associated with an increased risk of atrial fibrillation, a common arrhythmia. Patients with high caffeine intake and low Mediterranean diet adherence had higher rates of arrhythmias, suggesting a potential link between coffee consumption and cardiovascular disease.
A study found that warfarin may increase the risk of stroke in dialysis patients with abnormal heart rhythms. Patients on dialysis who take warfarin are at a higher risk of stroke, particularly those whose blood is not monitored for warfarin levels after treatment.
Researchers have identified new targets for treating breast cancer metastasis by inhibiting Brk protein expression. Additionally, a study on Wnk1 revealed its critical role in angiogenesis and heart development. Furthermore, drug abuse has been found to worsen HIV-associated neurocognitive disorders through dopamine signaling.
The PROTECT AF study found that percutaneous closure of the left atrial appendage (LAA) is a viable option for stroke prevention in patients with non-valvular atrial fibrillation. The device-based approach showed non-inferior efficacy to long-term warfarin therapy, but higher safety event rates.
Researchers at the University of Alabama at Birmingham found that atrial fibrillation significantly increases hospitalization due to worsening heart failure in patients not receiving beta-blockers. However, the risk of all-cause mortality was similar between those with and without atrial fibrillation.
A study of over 7,500 individuals found that first-degree atrioventricular block is associated with a two-fold increased risk of atrial fibrillation, a three-fold increased risk of pacemaker implantation, and a 1.4-fold increased risk of all-cause death. The researchers suggest that the natural history of this condition may not be as b...
Long-term endurance sport participation increases the incidence of cardiac arrhythmias, particularly atrial fibrillation. Research efforts are focused on preventing and treating arrhythmias through techniques like CPVA and deconditioning.
Researchers found that an overactive enzyme plays a role in atrial fibrillation, but does not act alone. The study revealed a synergy between the enzyme and a specific calcium channel mutation, which is necessary for arrhythmia development.
Mayo Clinic is leading a six-year study to determine whether catheter ablation is more effective than drug therapy for treating atrial fibrillation. The trial will randomize patients over three years, examining effectiveness and safety of left atrial catheter ablation versus current state-of-the-art drug therapy.
Researchers at Intermountain Medical Center discovered a strong relationship between atrial fibrillation and the development of Alzheimer's disease in a study of over 37,000 patients. Patients with atrial fibrillation were 44% more likely to develop dementia than those without, with younger patients facing higher risks.
Researchers have found that a delayed-enhancement MRI method holds promise for predicting treatment outcomes and measuring disease progression in patients with atrial fibrillation. The study revealed that those with extensive scar tissue damage were at greater risk of AF recurrence after treatment.
A new study from the Sahlgrenska Academy reveals that big men are more susceptible to atrial fibrillation, a disturbance in the heart's rhythm. The risk of atrial fibrillation increases linearly with both body size and weight gain, putting larger men at higher risk.
A large-scale trial found that diabetic patients with atrial fibrillation have a significantly higher risk of death from cardiovascular causes. The study suggests that aggressive treatment with blood pressure-lowering drugs can reduce this risk, and highlights the importance of identifying undiagnosed AF in diabetic patients.
A new study by Kaiser Permanente researchers found that chronic kidney disease independently increases the risk of ischemic stroke in patients with atrial fibrillation. Kidney function may provide an additional clue about how to best assess stroke risk and decide upon the best prevention strategy for patients with AF.
A new risk score has been developed to identify people at risk of atrial fibrillation in primary care, using clinical characteristics and echocardiographic measures. The tool was tested on 4,764 participants and showed good predictive value, with age being the strongest risk factor associated with atrial fibrillation.
The ATHENA trial found that dronedarone reduced the incidence of cardiovascular-related hospitalisation or death by 24% compared to placebo. The study also showed a significant reduction in cardiovascular death, with no difference in overall mortality.
A new study identifies NUP155 as the root cause of rare and severe atrial fibrillation. The gene controls molecular transport into and out of the cell nucleus, affecting heart health.
A study of 34,715 women found that up to two drinks per day is not associated with an increased risk of atrial fibrillation. However, women who consumed more than two drinks per day had a higher risk of developing the condition.
DeCODE's DNA-based risk tests have been shown to increase accuracy of MI risk prediction by measuring genetic markers on chromosomes 9p21 and 4q25. These tests provide a new tool for improving screening, prevention, and treatment of cardiovascular conditions.
deCODE's DNA-based tests measure genetic markers linked to increased cardiovascular conditions' risk. These tests provide doctors with a new tool for improving screening, prevention, and treatment.
Researchers found that patients receiving donated lungs may develop arrhythmias, including atrial fibrillation, within 30 days of transplantation. Herpes zoster, or shingles, is also a common complication after lung transplantation, but antiviral prophylaxis and treatment with the antibody RATG can be protective.
Common osteoporosis medications bisphosphonates may cause irregular heartbeats and serious atrial fibrillation in patients. The risk is significant, with up to two times more likelihood of serious AF compared to placebo, highlighting the need for caution when prescribing these medications.
A study found that reducing amiodarone treatment frequency did not decrease side effects but increased atrial fibrillation recurrence rates. Patients in the episodic treatment group had higher all-cause deaths and cardiovascular hospitalizations compared to those receiving continuous treatment.
Researchers at University of Utah Health developed an MRI-based method to detect and measure scarring on the left atrium's wall in patients with atrial fibrillation. The study found that higher percentages of LA wall injury are linked to a lower recurrence rate of arrhythmia.
Researchers have found a gene mutation linked to one family's hereditary form of atrial fibrillation, leading to better understanding and potential new treatments. The discovery provides insight into pathways that may be applicable to people in the general population with atrial fibrillation.
A study found 10.7% of asymptomatic middle-aged individuals had silent cerebral infarctions, a brain injury caused by blood clots. Hypertension and atrial fibrillation significantly increased the risk of SCI.
A major international clinical trial has found that a simpler approach to treating atrial fibrillation in patients with congestive heart failure can significantly reduce hospitalization rates and eliminate the need for repeated cardioversions. The study, published in the New England Journal of Medicine, enrolled 1,376 patients at 123 h...
Dr. Marrouche's pioneering work with magnetic resonance imaging (MRI) has improved the curative rates and safety of radiofrequency ablation procedures for atrial fibrillation. His research has led to significant reduction in complications and arrhythmia-free outcomes for patients.
Women using Fosamax are nearly twice as likely to develop atrial fibrillation, a chronic irregular heartbeat. The study found that maintaining a healthy body weight may help protect against this condition.
A new study found that women taking osteoporosis medication alendronate are at increased risk of developing atrial fibrillation. The researchers estimated that approximately 3% of new atrial fibrillation cases may be attributed to alendronate use.
Atrial tachycardia is associated with mitochondrial dysfunction and oxidative stress, leading to NF-kB activation. Blockade of angiotensin II receptors, L-type calcium channels, NADPH oxidase, and inhibition of NF-κB activation can abolish or decrease tachycardia-dependent changes in atrial tissue.
The Cox-Maze procedure has been enhanced to include an additional ablation, known as the box lesion, which improves patient outcomes by reducing atrial flutter and fibrillation. This new technique also leads to shorter hospital stays and lower use of antiarrhythmic drugs.
A recent study found that patients taking statins were 61% less likely to develop atrial fibrillation. The American College of Cardiology also releases new performance measures for monitoring AF care, which focus on stroke prevention through medication and regular monitoring.
Researchers concluded that warfarin reduces stroke risk by 52% compared to aspirin in patients over 75 with atrial fibrillation. The study found no significant increase in bleeding risks associated with warfarin use.
The Ottawa Aggressive Protocol, involving IV procainamide and electrical cardioversion, is effective in treating AAF and AAFL with a high discharge rate of over 90%. This approach stands in contrast to traditional US practice, which often involves hospital admission followed by cardiologist treatment.
A study by the American Heart Association found that patients who used an online education program were more aware of treatment options and asked their doctors about care. The program provided personalized information in lay language, leading to improved patient knowledge and behavior.
A new study has found that a once-a-year treatment for osteoporosis can be as effective as monthly or weekly regimens at reducing bone fractures. The treatment, zoledronic acid, was shown to reduce the risk of spinal fractures by 70% and hip fractures by 40% over three years.
A new study published in JAMA found that patients who receive hydrocortisone after cardiac surgery have a significantly lower risk of developing atrial fibrillation. The incidence of AF was reduced by 37% in the hydrocortisone group compared to those receiving placebo.
A Mayo Clinic study has identified a genetic mutation associated with an inherited predisposition to atrial fibrillation, a type of irregular heartbeat. The discovery may lead to improved identification and treatment of younger patients affected by this condition.
A study identified pulse pressure as an important predictor of atrial fibrillation development, with increased stiffness associated with higher risk. The research found that a 20 mm Hg increase in pulse pressure was linked to a 34% increased risk of developing AF.
Atrial fibrillation affects over 2.2 million US citizens, causing fatigue, shortness of breath, and stroke risk; the new Cox-maze IV procedure offers a simpler alternative to traditional surgery with fewer complications
Researchers at Columbia University Medical Center present several studies on cardiovascular diseases, including the molecular roots of atrial fibrillation, genes influencing heart transplant rejection, and the cost of end-stage heart failure. Additionally, they explore the potential of stem cells to repair cardiac damage in patients wi...
The new radiofrequency device-based approach significantly shortens the Cox-Maze procedure from over 90 minutes to just 30 minutes. The ablation technology disrupts abnormal electrical activity, normalizing heart rhythm and eliminating atrial fibrillation in over 90% of patients.
A new imaging procedure using intracardiac echocardiography (ICE) provides real-time monitoring of the esophagus during ablation, reducing the risk of esophageal injury. The study involved 152 patients who underwent left atrial ablation for AF and found that ICE could detect lesions on the posterior wall of the heart's left atrium.
A new study found that older age is an independent risk factor for developing bleeding in the body, particularly intracranial hemorrhage in the brain. Carefully monitored warfarin therapy can be used with reasonable safety in older patients.
The revised guidelines recommend using risk factors for stroke to determine whether anti-clotting therapy is given to people with atrial fibrillation. Aspirin or warfarin is recommended for patients with certain risk factors, and daily aspirin therapy is suggested for those without stroke risk factors.
Researchers at Mayo Clinic have identified a gene mutation causing chaotic electrical activation of the heart muscle and atrial fibrillation. The study found that a specific genetic mutation in the KCNA5 gene leads to susceptibility for atrial fibrillation, providing new insight into its mechanism.
A new study suggests that expensive heart rhythm treatment LACA is cost-effective for younger patients with certain risk factors, while older patients or those without additional risk factors may not benefit from the procedure. The analysis used computer modeling to compare costs and benefits of LACA versus traditional drug therapy.
Patients with atrial fibrillation have a five times higher stroke risk than those without the condition. Warfarin has been shown to reduce stroke risk by a significant margin, outperforming alternative treatments like aspirin and clopidogrel in reducing stroke rates by nearly two-thirds.
Regular exercise helps patients with permanent atrial fibrillation (AF) maintain a regular heartbeat. Moderate physical activity decreased the patients' ventricular rate by 12 percent in those with chronic AF. Researchers also explored new pacemaker technology using acoustic energy, found to be safe and effective.
A study of nearly 17,700 male physicians found that fish consumption was associated with a lower risk of sudden cardiac death, but not necessarily atrial fibrillation. Omega-3 fatty acid supplementation may also have mixed effects on heart health, depending on individual factors.
A large cohort study found that patients taking high-dose corticosteroids are at increased risk of developing atrial fibrillation. Corticosteroids may affect heart function by altering potassium balance and causing fluid retention, leading to high blood pressure and congestive heart failure.
A study has found that taller people are more likely to develop atrial fibrillation, with the risk increasing by 32% for those in the tallest quartile compared to the shortest. The researchers suggest that tall individuals may need more aggressive risk factor attenuation strategies.
A new magnetic-guided catheter has successfully treated atrial fibrillation in 38 of 40 patients, with no reported complications. The robotic device offers more precise control than conventional catheter ablation devices, potentially reducing procedure duration and improving outcomes.
Recent studies have improved safety and effectiveness in treating patients with acute coronary syndromes, enhancing the management of cardiovascular disease. These advancements include innovative therapies such as bivalirudin and pexelizumab, which aim to reduce major bleeding risks while maintaining efficacy.
Temporary esophageal stenting is a new alternative to surgery for correcting esophageal perforations, which can occur during atrial fibrillation ablation procedures. This non-invasive method has been shown to be effective in healing the esophagus without surgery.
A study published in the New England Journal of Medicine found that radiofrequency catheter ablation significantly improved heart rhythm and quality of life for patients with chronic atrial fibrillation. The procedure was effective in returning 74% of patients to normal rhythm, even in those with difficult-to-treat cases.
A study of 3,233 individuals aged 65+ found that subclinical hyperthyroidism was associated with an increased risk of developing atrial fibrillation. However, the study did not find a link between abnormal thyroid function and other cardiovascular problems.
A Loyola study found that continuous cardiac rhythm monitoring detects unsuspected paroxysmal abnormalities in stroke patients, including atrial fibrillation. Cardiovascular risk factors were discovered more frequently in monitored patients, highlighting the importance of routine telemetry for all stroke patients.