An arrhythmia is a problem with the speed or rhythm of the heartbeat. During an arrhythmia, the heart can beat too fast, too slow, or with an irregular rhythm. A heartbeat that is too fast is called tachycardia. A heartbeat that is too slow is called bradycardia. Most arrhythmias are harmless, but some can be serious or even life threatening. When the heart rate is too slow, too fast, or irregular, the heart may not be able to pump enough blood to the body. Lack of blood flow can damage the brain, heart, and other organs.
In a new study, researchers identified the most common characteristics of 85 COVID-19 patients who died in Wuhan, China in the early stages of the coronavirus pandemic.
As some consider treating coronavirus patients with a combination of the malaria drug hydroxychloroquine and the antibiotic azithromycin, cardiologists are advising caution because both medications can increase the risk for dangerous abnormal heart rhythms.
Researchers led by biomedical engineers at Tufts University invented a microfluidic chip containing cardiac cells that is capable of mimicking hypoxic conditions following a heart attack - specifically when an artery is blocked in the heart and then unblocked after treatment.
The world has been brought to a stand-still by the COVID-19 pandemic that has affected 197 countries, areas and territories, infected 467,594, and killed 21,181 individuals as of today. COVID-19 disease is caused by severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2), a single-stranded RNA virus, contagious in humans.
SARS-CoV-2, the virus that causes COVID-19, continues to spread, leading to more than 20,000 deaths worldwide in less than four months. Efforts are progressing to develop a COVID-19 vaccine, but it's still likely 12 to 18 months away.
Cardiac arrhythmias are a major cause of morbidity and mortality worldwide. Currently, the 12-lead electrocardiogram is the noninvasive clinical gold standard used to diagnose and localize these conditions, but it has limited accuracy, cannot provide an anatomical tool to visually localize the source of the arrhythmia, and depending on which clinician is looking at the signals, there might be some interpretation variability.
A new study in Finland has revealed that inherited malignant ventricular arrhythmia is fairly common among Finnish Leonbergers under three years of age. At its worst, such arrhythmia can result in the dog's sudden death.
Get ready for the latest practice-changing research in heart rhythm disorders: presented at EHRA 2020, a scientific congress of the European Society of Cardiology.
Cardiologists at The Ohio State University Wexner Medical Center are the first in the United States to test a new type of ablation technology for patients suffering from atrial fibrillation, a common type of irregular heartbeat.
For most people, the benefits of aerobic exercise far outweigh the risks, however, extreme endurance exercise - such as participation in marathons and triathlons for people who aren't accustomed to high-intensity exercise - can raise the risk of sudden cardiac arrest, atrial fibrillation (a heart rhythm disorder) or heart attacks, according to a new Scientific Statement "Exercise-Related Acute Cardiovascular Events and Potential Deleterious Adaptations Following Long-Term Exercise Training: Placing the Risks Into Perspective-An Update from the American Heart Association," published today in the Association's premier journal Circulation.
A group of researchers led by Professor Yoshiki SAWA of the Cardiovascular Group in the Graduate School of Medicine, Osaka University, succeeded in beating-heart surgery to repair a mitral valve.
A new study published in the journal BMJ in February 2020 reports that macrolide or penicillin antibiotic consumption in pregnancy could be linked to several adverse health outcomes in children. These include major malformations, cerebral palsy, attention deficit hyperactivity disorder, and autism spectrum disorder.
People may feel a flip-flop in their chest when they're under stress, haven't slept well or even during normal activity.
Low oxygen levels in the heart have long been known to produce life-threatening arrhythmias, even sudden death. Until now, it was not clear how.
An approach based on artificial intelligence may allow EKGs to be used to screen for hypertrophic cardiomyopathy in the future.
Cardiomyopathy refers to diseases of the heart muscle causing cardiac myocyte injury and myocardial dysfunction, which impair structural and functional ventricular filling or ejection of blood in the absence of other structural or vascular heart diseases.
The A143T variant of the GLA gene is associated with an increased risk of Fabry cardiomyopathy, according to a new study.
Duchenne type muscular dystrophy is the most common hereditary muscular disease among children, leaving them wheelchair-bound before the age of twelve and reducing life expectancy.
A panel of experts have said that nine genes linked to a dangerous heart disorder called long QT syndrome, are not associated with the condition.
Researchers from the Faculty of Health and Medical Sciences have shown a possible link between a genetic variation and the widespread type of cardiac arrhythmia, atrial fibrillation.