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.
An enzyme released by mast cells in the lungs appears to play a key role in the tightening of airways that is a hallmark of asthma -- pointing to a potential new target for treatment against the illness.
Celebrex, a popular arthritis drug that blocks pain by inhibiting an enzyme known as COX-2, has been shown in laboratory studies to induce arrhythmia, or irregular beating of the heart, via a novel pathway unrelated to its COX-2 inhibition.
Stereotaxis, Inc. has announced that the Company has been advised that the U.S. Food and Drug Administration (FDA) has approved its partnered magnetic irrigated catheter for use in mapping and ablation in the United States.
Methadone is a possible cause of sudden cardiac death even when it isn't overdosed but is taken at therapeutic levels primarily for relief of chronic pain or drug addiction withdrawal, a new study by Oregon Health & Science University researchers suggests.
An estimated 750,000 hospitalized patients experience cardiac arrest and undergo CPR annually, and less than 30 percent of those leave the hospital alive.
Scientists funded by the Biotechnology and Biological Sciences Research Council (BBSRC) at Imperial College London have overcome two significant obstacles on the road to harnessing stem cells to build patches for damaged hearts.
In as many as one in five people over age 55, when the heart contracts to send blood around the body, some degree of backward leakage occurs across the mitral valve, a condition known as mitral regurgitation (MR).
In as many as one in five people over age 55, when the heart contracts to send blood around the body, some degree of backward leakage occurs across the mitral valve, a condition known as mitral regurgitation (MR).
CV Therapeutics, Inc. has announced that the U.S. Food and Drug Administration (FDA) has notified the Company that it will evaluate the approval of potential anti-arrhythmic claims for Ranexa (ranolazine extended-release tablets) as part of its ongoing review of the Company's supplemental new drug application (sNDA).
When researchers at Cornell, the University of Bonn and the University of Pittsburgh transplanted living embryonic heart cells into cardiac tissue of mice that had suffered heart attacks, the mice became resistant to cardiac arrhythmias, thereby avoiding one of the most dangerous and fatal consequences of heart attacks.
VTT Technical Research Centre of Finland and A*STAR Agency for Science, Technology and Research from Singapore have developed remote healthcare services that allow patients to be treated globally independent of time and location and irrespective of the solutions provided by hardware and data system suppliers. In Finland, the first trial services for treating cardiac patients and patients suffering from chronic illnesses have been promising.
Everyone loves a two-fer, but a two-in-one heart test that has the potential to save lives is the real deal.
In a new study, UC Davis researchers report the first functional evidence that heart cells derived from human embryonic stem cells exhibit one of the most critical properties of mature adult heart cells, an important biological process called excitation-contraction coupling.
GlaxoSmithKline and Reliant Pharmaceuticals Inc. have announced that they had reached an agreement under which Reliant will be acquired by GSK for $1.65 billion (800 million pounds Sterling) in cash.
Women with heart failure are less likely than men to receive recommended investigations and treatment, when admitted to hospital as an emergency, reveals an extensive UK survey, published ahead of print in the journal Heart.
Stereotaxis, Inc. has announced that the first atrial fibrillation procedures performed with its partnered magnetic irrigated catheter were successfully completed over the course of the past week.
Researchers at the University of Pittsburgh School of Medicine have identified a new gene responsible for a rare, inherited form of sudden cardiac arrest, known as Brugada syndrome.
CryoCath Technologies Inc., the global leader in cardiac arrhythmia products to treat cardiovascular disease, today announced it filed against CryoCor, Inc. a patent infringement lawsuit in the United States District Court for the District of Delaware.
People with heart disease should take special precautions before undergoing any kind of surgery, even noncardiac surgery, to reduce their risk of a cardiac event, according to new joint guidelines from the American College of Cardiology and the American Heart Association.
When out-of-control nerve impulses cause the heart to beat irregularly, cardiologists often use heat during a minimally invasive outpatient procedure to destroy the defective signaling pathways and restore the rhythm to order.
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