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.
COVID-19, the disease caused by the pandemic coronavirus SARS-CoV-2, is primarily regarded as a respiratory infection. Yet the virus has also become known for affecting other parts of the body in ways not as well understood, sometimes with longer-term consequences, such as heart arrhythmia, fatigue and "brain fog."
Researchers have used the zebrafish (Danio rerio) to identify the role of a gene involved in cardiac rhythm, which could help explain the fundamentals of what it takes to make a human heartbeat.
Canadian researchers are the first to study how different patterns in the way older adults walk could more accurately diagnose different types of dementia and identify Alzheimer's disease.
Structural racism is a public health crisis in the U.S. and worldwide. The scientific publishing community can improve our understanding and address the significant health impacts of structural racism in racial and ethnic disparities research.
Researchers from Mayo Clinic and AliveCor Inc. have been using artificial intelligence (AI) to develop a mobile device that can identify certain patients at risk of sudden cardiac death.
There could be an intervention on the horizon to help prevent heart damage caused by the common chemotherapy drug doxorubicin, new research suggests.
onditions causing arrhythmia are among the most common cardiac conditions. A study headed by Prof. Georg Schmidt of the Technical University of Munich has demonstrated for the first time that the nocturnal respiratory rate can help with an important prediction: It is an indicator of whether a defibrillator will help to extend the life of patients with arrhythmia.
Columbia researchers have created a new technology using synthetic llama antibodies to prevent specific proteins from being destroyed inside cells.
Special activity trackers can be used to fairly accurately determine the respiratory rate of people while they sleep.
The American Heart Association and the American College of Cardiology today released an updated guideline for managing patients with hypertrophic cardiomyopathy (HCM).
In a new publication from Cardiovascular Innovations and Applications; Yu Zhang, Wen-Long Dai, Can-Can Lin, Qiao-Yuan Li and Cheng-Jun Guo from Beijing Anzhen Hospital, Capital Medical University, Beijing, China consider implantation of an S-ICD in a patient with a DDD pacemaker and congenitally corrected transposition of the great arteries.
These days having both a land line and a mobile phone seems like overkill. But Virginia Tech researchers have shown that the heart relies on at least two key communication channels to keep abnormal heart rhythms in check.
StemBioSys, Inc announced today the publication of research in Nature Scientific Reports demonstrating their latest CELLvo™ Matrix Plus findings.
New research shows that adults with lupus who take the antimalarial drug, hydroxychloroquine, do not have any differences in their corrected QT (QTc) intervals, an electrocardiogram (EKG) measurement of the heart's electrical signals, even if they have chronic kidney disease (CKD), a complication of lupus that can be associated with increased levels of the medication.
New research presented at ACR Convergence, the American College of Rheumatology's annual meeting, discovers that use of hydroxychloroquine, a generic drug, does not cause any significant differences in QTc length or prolonged QTc, key measures of heart rate, in people with rheumatoid arthritis (RA) or systemic lupus erythematosus (SLE).
Researchers from the nference (a biotech information firm) in Cambridge, MA, USA, the Mayo Clinic in Rochester, MN, USA, and nference Labs based in Bengaluru, India, recently performed a retrospective analysis of 266 COVID-19 patients.
Pacemakers and other implantable cardiac devices used to monitor and treat arrhythmias and other heart problems have generally had one of two drawbacks - they are made with rigid materials that can't move to accommodate a beating heart, or they are made from soft materials that can collect only a limited amount of information.
Researchers from Skoltech and their US colleagues have designed a new machine learning-based approach for detecting atrial fibrillation drivers, small patches of the heart muscle that are hypothesized to cause this most common type of cardiac arrhythmia.
Cardiovascular disease is now the number one cause of maternal mortality in the United States, but a new study suggests that care from a multidisciplinary cardio-obstetrics team may improve pregnancy outcomes and reduce hospital readmission rates.
In a recently published study, researcher Stephen Elledge from Harvard Medical School has described converting the coronavirus disease (COVID-19) death toll from individual deaths to “person-years” lost in order to provide a more accurate picture of the pandemic’s toll on the population.