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.
Vernakalant, a new drug for treating recent-onset atrial fibrillation, has proved to be considerably more effective than Ibutilide, an established drug in this indication. It was able to normalize patients' heart rhythm more rapidly and with fewer side-effects ocurring. This was revealed by a study conducted at the Department of Emergency Medicine at Medical University of Vienna/General Hospital that has recently been published in "Europace", a journal of the European Society of Cardiology.
Centres with procedures in place for the rapid assessment of patients with transient ischaemic attack or minor stroke achieve low recurrence rates in these patients, a multinational study shows.
Scientists from MIPT's Laboratory of the Biophysics of Excitable Systems have discovered how to control the behaviour of heart muscle cells (cardiomyocytes) using laser radiation; this study will help scientists to better understand the mechanisms of the heart and could ultimately provide a method of treating arrhythmia. The paper has been published in the journal PLOS ONE.
The U.S. Food and Drug Administration today approved the first pacemaker that does not require the use of wired leads to provide an electrical connection between the pulse-generating device and the heart. While the Micra Transcatheter Pacing System works like other pacemakers to regulate heart rate, the self-contained, inch-long device is implanted directly in the right ventricle chamber of the heart.
Emergency physicians used a patient's personal activity tracker and smartphone to identify the time his heart arrhythmia started, which allowed them to treat his new-onset atrial fibrillation with electrical cardioversion and discharge him home.
Patients treated with CMX-2043--an investigational drug that has previously shown some ability to protect heart muscle from damage during stenting--saw no improved protection in their kidneys compared to placebo, according to research presented at the American College of Cardiology's 65th Annual Scientific Session.
Giving intravenous beta blockers before performing a coronary angioplasty in patients who had experienced the deadliest form of heart attack—ST-segment elevation myocardial infarction (STEMI)—was safe but did not reduce heart attack severity or improve blood flow from the heart's main pumping chamber, according to research presented at the American College of Cardiology's 65th Annual Scientific Session.
AliveCor, Inc., the leader in FDA-cleared electrocardiogram (EKG) technology for mobile devices, announced today the introduction of the first medical-grade EKG band for the Apple Watch, Kardia Band (pending 510k clearance, available in late spring) along with a new app for smartphones (available now).
Doctors have long characterized epilepsy as a brain disorder, but researchers at Case Western Reserve University have found that part of the autonomic nervous system functions differently in epilepsy during the absence of seizures.This connection to the involuntary division of the nervous system may have implications for diagnosing and treating the disease and understanding sudden unexpected death in epilepsy
Patients with no schooling benefit least from blood thinning medications, reveals a European Heart Rhythm Association / European Society of Cardiology survey published today in Europace.
North American researchers have identified drugs that showed promising perspectives in treating cancers, according to a recent study published in Cancer Research.
A new blood clotting analysis system designed in Japan makes it easier to determine the effects of taking one or more antithrombotic (anti-clotting) drugs.
A review of BCR–ABL1 tyrosine kinase inhibitors highlights the need to consider cardiovascular adverse event risk profiles when prescribing for patients with chronic myeloid leukaemia.
The U.S. Food and Drug Administration has approved Eli Lilly and Company's Humulin R U-500 KwikPen(insulin human injection) 500 units/mL, a pre-filled device containing Humulin R U-500, a highly concentrated formulation of insulin.
Diseased hearts may be thrown out of rhythm by structural differences -- now visible for the first time -- in protein groups that connect heart muscle cells, according to the authors of a study to be published in the journal Nature Communications online Jan. 20.
A pioneer in developing life-saving therapies for a deadly heart arrhythmia has called on electrophysiologists to reexamine a widely used technique to guide the treatment of the faulty electrical impulses responsible for these abnormal heartbeats.
Columbia Engineering researchers have shown, for the first time, that electrical stimulation of human heart muscle cells (cardiomyocytes) engineered from human stem cells aids their development and function.
Supraventricular arrhythmias are common in patients with pulmonary arterial hypertension but can be successfully managed with standard treatments, a study shows.
Scientists at the University of Leicester have demonstrated for the first time the mechanism by which the level of sugar in your blood can affect the contraction of blood vessels, with potentially dangerous effects on the heart and blood pressure.
A review of medical records of patients with genetic variations linked with cardiac disorders found that patients often did not have any symptoms or signs of the conditions, questioning the validity of some genetic variations thought to be related to serious disorders, according to a study in the January 5 issue of JAMA.
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