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.
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.
Science has long known that recovery from experimental heart attacks is improved by injection of a mixture of heart muscle cells, endothelial cells and smooth muscle cells, yet results have been limited by poor engraftment and retention, and researchers worry about potential tumorigenesis and heart arrhythmia.
Life-threatening cardiac arrhythmias can be linked to the functional and structural consequences of gene mutations. The study is published in the peer-reviewed journal Bioelectricity.
Health care professionals should become more familiar with medications that cause irregular heart rhythms called arrhythmias, according to "Drug- Induced Arrhythmias," a new scientific statement from the American Heart Association, published today in the Association's flagship journal Circulation.
Researchers developed a new class of medical instruments equipped with an advanced soft electronics system that could dramatically improve the diagnoses and treatments of a number of cardiac diseases and conditions.
Researchers at the University of Washington in Seattle have conducted a study suggesting that infection with severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) can directly infect heart tissue and contribute to whole-organ cardiac dysfunction.
ESC Guidelines for the diagnosis and management of atrial fibrillation developed in collaboration with the European Association of Cardio-Thoracic Surgery (EACTS).
Researchers in Milan, Italy, have identified the presence of severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) in the heart tissue of deceased coronavirus disease 2019 (COVID-19) patients who had died from respiratory failure, without showing any signs of cardiac involvement.
Scientists today urged people with atrial fibrillation - the most common heart rhythm disorder - to kick the habit and cut their stroke risk. The research is presented today at ESC Congress 2020.1