Cardiac Arrhythmias
Articles tagged with Cardiac Arrhythmias
Results of major heart study set to save lives, reduce unneeded heart implants
Popular weight loss and anti-inflammatory drugs may help prevent common heart rhythm disorder
University of Cincinnati works with local paramedics to advance sudden cardiac arrest research
A University of Cincinnati study proves the feasibility and scalability of collecting blood from patients in cardiac arrest during treatment. The approach, which involves paramedics delivering samples to a biorepository, showed significant variation among patients and underscores the need for further research.
Heart failure is common in people with atrial fibrillation detected during screening
Individuals with screening-detected atrial fibrillation have a threefold increased risk of developing heart failure compared to those without AF. The incidence of HF was diagnosed early after AF detection, emphasizing the importance of identifying and treating HF in patients with AF.
Exercise harder, not just longer, to reduce risk of disease and death
Research found that people who spend a higher proportion of their total physical activity doing vigorous activity have substantially lower risks of all eight serious health conditions. The benefits of vigorous activity remained even when the amount of time was modest.
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.
Sleep loss linked to higher atrial fibrillation risk in working-age adults
A new multicenter study by Kumamoto University and National Cerebral and Cardiovascular Center found that working-age adults with shorter sleep durations are more likely to develop atrial fibrillation. In contrast, retirees showed no significant association between sleep duration and AF risk.
Telehealth in cardiovascular care
Heart damage is common after an operation and often goes unnoticed, but patients who see a cardiologist may be less likely to die or suffer heart disease as a result
Researchers found that patients seen by cardiologists had lower mortality rates and fewer serious heart problems, including heart attack, sudden failure, or irregular heartbeat. The study suggests close teamwork between surgical and heart teams can improve outcomes after major surgery.
Why can a computational model of the heart created at UPF help doctors operate on and treat patients with arrhythmia?
Researchers have developed a new computational model that can analyze factors affecting the success of device installation and patient evolution. The model enables precise calculation of anticoagulant doses needed post-operation, reducing risk and improving safety for patients with atrial fibrillation.
People with diabetes face higher risk of sudden cardiac death
A large study found that people with type 1 and type 2 diabetes have a higher risk of sudden cardiac death, particularly in younger adults. The research also showed that sudden cardiac death contributes to shorter life expectancy for those with diabetes.
New study overturns assumptions about AFib treatment in sleep apnea patients
A new Tulane University study suggests that catheter ablation delivers major benefits for patients diagnosed with both atrial fibrillation and obstructive sleep apnea, significantly lowering the risks of heart failure and death. The study found a 40% drop in major cardiovascular events and a 70% decline in all-cause mortality.
A new strategy for treating atrial fibrillation: Targeting the TRPC3 channel
Researchers at Toho University discovered that pyrazole-3 inhibits the TRPC3 channel, preventing atrial fibrillation persistence. This finding suggests targeting TRPC3 channels as a promising therapeutic approach for atrial fibrillation and related cardiovascular diseases.
Genetic testing trifecta predicts risk of sudden cardiac death and arrhythmia
A new genetic risk score combines rare and common gene variants with non-coding genome information to predict arrhythmia risk. This comprehensive framework can be applied to other genetically influenced diseases like cancer and Parkinson's Disease.
Ablation reduces stroke risk for AFib and may remove need for some types of blood thinners
A new study suggests that catheter ablation can reduce the risk of stroke in people with atrial fibrillation (AFib) and may even allow them to stop taking blood thinners. The study found that long-term oral anticoagulation is not necessary after successful ablation in patients with moderate to high stroke risk.
Cup of coffee a day may not be harmful for some adults with AFib and could lower episodes
Adults with atrial fibrillation who drank a daily cup of coffee were 39% less likely to have an irregular heart rhythm episode compared to those who avoided all caffeinated products. The preliminary study results suggest that caffeinated coffee may not be responsible for raising the risk of AFib and may even reduce it.
One month of clot prevention after a stent was as effective as year-long course for AFib
A new study found that using a simplified clot-preventing medication regimen for one month after stent placement in adults with atrial fibrillation is equally safe and effective as a standard year-long treatment regimen. This approach may help reduce bleeding risk associated with the medications while maintaining stroke, heart attack, ...
Medication still better than procedure for some irregular heartbeat conditions
A new study found that standard medical care, including blood thinners, is the better choice for older people with irregular heart rhythms who are at high risk of stroke and bleeding. The catheter-based procedure was non-inferior to medical therapy in reducing stroke risk but caused more bleeding in higher-risk patients.
Diabetes drug reduced irregular heartbeat events in overweight/obese adults with AFib
Researchers found that taking metformin in addition to standard care after catheter ablation reduced episodes of atrial fibrillation in people with obesity. The study suggests that lifestyle and risk factor modification efforts can be aided by metformin, and future studies are needed to confirm these findings.
Assessing heart-pumping glitch may reduce stroke risk in adults with heart muscle disease
Researchers have found that atrial electromechanical dissociation (AEMD) can predict stroke risk in people with transthyretin amyloid cardiomyopathy, even when the heart rhythm appears normal. A non-invasive assessment tool may help identify those at increased risk and guide earlier conversations about preventive strategies.
Chance to identify young people at risk of cardiac arrest
A nationwide Swedish study found that many young people who died from cardiac arrest had recently sought medical care and showed signs of heart problems. The study suggests that fainting, seizures, and abnormal ECG findings in young people should be taken more seriously to identify those at risk before a sudden arrhythmic death occurs.
Lehigh University team develops computational model to guide neurostimulation therapy for atrial fibrillation
The Lehigh University team created a computational model to predict the hemodynamic response of patients with AFib, helping tailor neurostimulation dosages. The model validated against clinical data and predicted accurate effects on blood pressure, heart rate, and stroke volume.
CRF unveils 2025 SET-10 Rankings spotlighting global leaders in cardiovascular research
The Cardiovascular Research Foundation (CRF) has announced the 2025 SET-10 Rankings, honoring institutions whose groundbreaking research is shaping the future of cardiovascular care. The rankings recognize academic and medical institutions that are advancing the science and improving patient outcomes.
Radiation therapy shows promise for patients with severe heart rhythm disorder
A retrospective study found that radiation therapy controlled ventricular tachycardia with fewer complications than standard catheter ablation. Radiation therapy was similarly effective in controlling arrhythmia and showed lower serious side effects, especially in the early time window.
New research finds 62% of AFib patients were unaware of the condition before diagnosis
New research from the American Heart Association reveals that most people with atrial fibrillation (AFib) are unaware of the condition before being diagnosed. The study found that AFib patients reported experiencing an average of three symptoms before receiving a diagnosis, highlighting the importance of recognizing early warning signs...
Gene therapy restores functionality in non-human primates after heart attacks
Researchers have successfully treated damage caused by heart attacks in non-human primates using gene therapy, restoring both strength and rhythm of the damaged hearts. The treatment improved heart function in pathological conditions with no adverse effects observed.
Wireless implant network could transform cardiac, neurological care
The system uses magnetoelectric power-transfer technology to deliver precise electrical stimulation to organs like the heart and spinal cord. The more devices in the network, the more efficient it is, offering a less invasive alternative to traditional implantable medical devices. This technology has potential for treating conditions s...
Takotsubo Syndrome: The hidden heart risks in Intensive Care Units
Researchers from the University of South Australia have identified a potential early warning system for Takotsubo syndrome in ICU patients using electrocardiogram patterns and blood markers. Critical care nurses with advanced ECG skills can play a key role in recognising early signs of the condition.
Scar tissue in athletes’ hearts tied to higher risk of dangerous cardiac rhythms
A new study found that scar tissue in the heart of healthy male endurance athletes aged 50 or older may increase their risk of abnormal heart rhythms and sudden cardiac death. The research used magnetic resonance imaging and ECG recorders to track the participants' heart activity over two years.
Patients with heart failure and atrial fibrillation undergoing transcatheter mitral edge-to-edge repair for severe mitral regurgitation are at significantly higher risk of death or rehospitalization
A study from Mount Sinai Hospital found that patients with heart failure and atrial fibrillation who undergo mitral edge-to-edge repair have a doubled risk of death or rehospitalization for heart failure compared to those without AF. The researchers recommend aggressive treatment of AF before the procedure to improve outcomes.
Scientists identify why some heart rhythm drugs heighten risks when sodium levels drop
Researchers found that low sodium levels can disrupt the heartbeat in patients taking widely used rhythm-control medications like flecainide, increasing conduction risk. Interfering with ephaptic coupling or potassium ion flow reduces heart sensitivity to low sodium when sodium channels are blocked.
Olympians' hearts in focus: groundbreaking study reveals elite rowers' surprising AFib risk
A new study involving 121 former elite rowers from Australia found that one in five develops atrial fibrillation, a condition that can lead to stroke and heart failure. The researchers identified genetic and clinical tools that enable early preventive strategies, highlighting the paradox that AFib is more common among fit athletes.
Variability in heart rate during sleep may reveal early signs of stroke, depression or cognitive dysfunction, new study shows
Research found that certain heart rate variability patterns can predict future health conditions, including stroke, depression, and cognitive dysfunction. The study suggests that nocturnal HRV provides a unique window into how the body functions during sleep.
Two decades of progress in heart failure care
The American Heart Association's Get With The Guidelines - Heart Failure registry reveals lasting benefits for hospitalized heart failure patients and hospitals. Hospitals engaging with the program consistently outperform peers on process measures and patient outcomes.
Changes in the aging heart may lessen the risk of irregular heartbeats
Researchers found that microscopic structural changes in heart cells naturally narrow with age, stabilizing heart rhythm and reducing the risk of irregular heartbeats. This discovery challenges the idea that all age-related changes in the heart are harmful.
MRI scans could help detect life-threatening heart disease
Researchers found that MRI scans can detect heart inflammation, scarring, and impaired function in carriers of a mutated LMNA gene. This information can help clinicians predict which patients are at higher risk and inform decisions about treatments such as defibrillators or transplants.
Blood thinners called factor Xa inhibitors lower heart risk in elderly with atrial fibrillation
A new study found that patients using factor Xa inhibitors experienced significantly fewer cardiovascular problems than those on other anticoagulants. Researchers followed over 1,000 patients aged 80 and above for up to five years, revealing lower rates of heart failure, artery disease, and cardiovascular death.
Lack of sleep can increase the risk of cardiovascular disease
A new study from Uppsala University investigates how sleep deprivation affects biomarkers associated with cardiovascular disease. Researchers found that chronic lack of sleep increases the risk of heart problems by promoting inflammatory proteins.
Heart valve abnormality is associated with malignant arrhythmias
A new study from Karolinska Institutet found that people with a certain heart valve abnormality are at increased risk of severe heart rhythm disorders even after successful valve surgery. The condition is more common in women and younger patients, and can lead to sudden cardiac arrest.
Scientists unveil starfish-inspired wearable tech for heart monitoring
The device uses AI technology to detect potential heart problems and provides real-time health insights. It has multiple points touching the skin near the heart, allowing for more accurate tracking even during movement.
A digital twin of the heart helps to improve the diagnosis and treatment of cardiac arrhythmias
A new method combines ECGI with digital twins to locate the origin of premature ventricular contractions, improving accuracy by an average of 7.8 mm. The method has been applied in a real clinical case and is expected to facilitate planning interventions and reduce treatment costs.
A new gene identified in the search for a therapy to treat malignant cardiac arrythmia
Researchers have discovered a novel gene therapy that can reverse conduction slowing and prevent cardiac arrhythmias by introducing the SCN10a-short gene into heart muscle cells. The treatment has shown promise in animal models and human cell studies, offering a potential solution for millions affected by arrhythmias worldwide.
Zhu receives NSF Career award to advance cardiac arrhythmia research
Cardiac arrhythmia disrupts heart rhythm due to malfunctioning electrical impulses. Rui Zhu plans to use deep-learning and computational simulations to model diseased hearts and understand multi-physical factors contributing to arrhythmic conditions.
New York Valves: The Structural Heart Summit is back!
The summit features live case demonstrations, interactive debates, hands-on training, and the latest evidence-based practices in structural heart care. Attendees will witness innovation in action, exploring breakthroughs in surgical techniques, transcatheter interventions, and personalized treatment strategies.
Reduced risk of serious cardiovascular disease after COVID vaccination
A nationwide Swedish study found that full vaccination significantly reduced the risk of severe cardiovascular outcomes linked to COVID-19, such as heart attack and stroke. However, temporary increases in cardiovascular risk were observed after individual doses, particularly among elderly and males.
Wearable heart monitor increases diagnosis of irregular heart rhythm
A large study found that wearable heart monitors increased diagnoses of atrial fibrillation by 52% compared to usual care. However, it did not lead to a significant reduction in hospitalizations due to stroke. The study's findings provide inconclusive data on the effectiveness of screening for atrial fibrillation in reducing stroke risk.
Injectable heart stimulator for emergency situations
A temporary heart stimulator self-assembles around the heart after injecting nanoparticles, correcting irregular heartbeats and facilitating ECG measurements. The device can operate for up to five days with low power inputs from handheld devices like mobile phones.
UCalgary study identifies a key role for pharmacists in stroke risk reduction
A UCalgary study found that involving community pharmacists in prescribing blood thinners for individuals with undiagnosed or undertreated atrial fibrillation can improve stroke prevention. The study showed a 34% increase in optimal blood thinner use among at-risk individuals.
Dr. Harish Manyam revolutionizes cardiac care with innovative device
Dr. Harish Manyam has developed a groundbreaking system that addresses potentially dangerous problems associated with traditional pacemakers and defibrillators. The leadless pacemaker, in combination with a novel subcutaneous defibrillator, eliminates the need for lead extraction procedures.
Doctors advise caution as energy drinks may trigger life-threatening cardiac arrhythmias in patients with genetic heart diseases
A study published in Heart Rhythm examined the potential dangers of energy drink consumption in patients with genetic heart diseases. The research found a temporal relationship between energy drink consumption and sudden cardiac arrest events, but caution is advised due to the small relative risk.
Establishing a novel inherited arrhythmia model mouse causing sudden cardiac death at young age
Researchers established a novel mouse model of inherited arrhythmia that spontaneously causes lethal arrhythmias, shedding light on the pathogenesis and potential drug efficacy. The study identifies a critical mutation in ryanodine receptor 2 (RyR2) as a key regulator of cardiomyocyte contraction.
Modular Communicative Leadless ICD is safe and exceeds performance expectations
The study found that the wireless modular system is safe and effective in treating cardiac arrhythmias, with a success rate of almost 99% in communicating between devices. The technology also reduces complications and invasive procedures, improving patient safety.
Gentle defibrillation for the heart
Scientists developed a new method of gentle defibrillation to control cardiac arrhythmias using low-energy pulses. The approach uses optical light pulses triggered by measured arrhythmic activity, effectively terminating arrhythmias with minimal impact on the heart.
New mechanism discovered for the life-threatening arrhythmias in Andersen-Tawil syndrome
Researchers have discovered a direct link between the C122Y mutation in the Kir2.1 potassium channel and life-threatening arrhythmias in Andersen-Tawil syndrome, which affects fewer than 1 in a million people. The study highlights the importance of understanding the molecular mechanisms underlying cardiac arrhythmias.
Chronic exposure to air pollution may increase risk of cardiovascular hospitalization among seniors
A new study found that chronic exposure to PM2.5 is associated with increased risk of hospital admission for various cardiovascular conditions, particularly ischemic heart disease and cerebrovascular disease. The study suggests that lowering annual average PM2.5 levels could decrease overall cardiovascular hospitalizations by 15%.
Nationwide study suggests link between medical cannabis for chronic pain and abnormal heart rhythm
A nationwide Danish study found a slightly increased risk of arrhythmia in patients taking medical cannabis for chronic pain. The risk was more than twice that of those not receiving cannabis, with the largest increases observed in older adults and those with pre-existing cardiovascular conditions.
Injectable hydrogel electrodes open door to a novel painless treatment regimen for arrhythmia
Researchers develop injectable hydrogel electrodes for treating ventricular arrhythmia, providing a potential solution to painful defibrillation and improving quality of life. The novel pacing modality addresses the pathophysiology of re-entrant arrhythmia and offers a promising alternative to existing therapies.
UofL study shows nicotine in e-cigarettes may not be harmless, as some claim
A new UofL study shows that nicotine salts in pod-based e-cigarettes can increase the risk of irregular heartbeat and cardiac arrhythmias. The research found that these aerosols stimulate the same receptor that is inhibited by beta blockers, leading to increased sympathetic nervous system activity.
Heart vest could help predict sudden cardiac death risk
A new study by UCL researchers suggests that a vest mapping the heart's electrical activity could help identify people at high risk of sudden cardiac death. The electrocardiographic imaging (ECGI) vest combines signals with MRI images to generate 3D models, potentially predicting risk factors for life-threatening heart rhythms.