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.
Potentially lethal heart conditions may become easier to spot and may lead to improvements in prevention and treatment thanks to innovative new software that measures electrical activity in the organ.
Affecting an estimated one in eight people older than 75, aortic valve stenosis - a narrowing of the heart's main artery - makes the heart work harder to supply the body with blood, potentially limiting patient's activity levels an quality of life. Ultimately, aortic stenosis can lead to stroke, arrhythmia, heart failure and death.
Patients with septic shock who were treated with norepinephrine earlier than patients receiving standard care were more likely to have their blood pressure and shock stabilized within six hours of diagnosis, according to a randomized, double-blind, controlled trial published online in the American Thoracic Society’s American Journal of Respiratory and Critical Care Medicine.
African Americans - especially African American women - have a significantly higher risk of sudden cardiac death during their lifetime than whites, and much of the disparity can be attributed to income and education levels, according to new research in the American Heart Association's journal Circulation.
Adding functional imaging to structural imaging of patients with ventricular tachycardia (VT) has the potential to improve current VT ablation strategies, according to new research published in the January issue of The Journal of Nuclear Medicine.
A team of researchers led by the University of California San Diego has identified a genetic pathway that causes some individuals to develop an abnormal heart rhythm, or arrhythmia, after experiencing a heart attack. They have also identified a drug candidate that can block this pathway.
For the first time, physicians in the Emergency Department have evidence-based recommendations on how best to catch the life-threatening conditions that make some people faint.
Researchers have successfully developed two biomarkers that could help predict the risk of a heart condition and stroke.
Atrial fibrillation is the most common form of heart arrhythmia. About ten per cent of everyone over age 75 develop this condition, in which the two upper chambers of the heart (the atria) beat much faster than the main chambers (the ventricles), creating a fluttering feeling in the chest.
A group of researchers from the departments of Physical Therapy, Medicine and Electronic Engineering of Valencia University and from the innovations group ITACA have just published research into physical exercise as a protector against sudden cardiac death. The study has been published in the 'PlosOne' journal.
Continuous indoor exposure to second-hand tobacco smoke triggers changes in the heart's electrical activity, known as cardiac alternans, that can predict cardiac arrhythmia and sudden cardiac death, a new study from UC Davis Health researchers shows.
In 2015, then President Barack Obama launched a precision medicine initiative, saying that its promise was "delivering the right treatments, at the right time, every time to the right person.
Scientists have uncovered the first evidence to associate dietary salt intake with the risk of developing a common heart condition that affects millions of people worldwide, in a new study published in the Annals of Medicine.
For more than a decade, the latest Apple products have been the annual must-have holiday gift for the tech-savvy. That raises the question: Is the newest Apple Watch on your list — either to give or receive — this year?
Johnson & Johnson Medical Devices Companies announced today that Biosense Webster, Inc., a worldwide leader in the diagnosis and treatment of heart arrhythmias, has enrolled and treated the first patient in its STELLAR U.S. Investigational Device Exemption study.
Biosense Webster EMEA, a Division of Johnson & Johnson Medical NV/SA and leader in the treatment of Atrial Fibrillation has today, during AF Association Global AF Aware Week, published a report that uncovers the growing burden of AF on patients, caregivers and healthcare systems across Europe.
Pfizer Inc. today announced that the U.S. Food and Drug Administration has approved LORBRENA, a third-generation anaplastic lymphoma kinase tyrosine kinase inhibitor for patients with ALK-positive metastatic non-small cell lung cancer whose disease has progressed on crizotinib and at least one other ALK inhibitor for metastatic disease; or whose disease has progressed on alectinib or ceritinib as the first ALK inhibitor therapy for metastatic disease.
Each year, at least 3 million people worldwide die of sudden cardiac death. In the U.S., this number reaches up to 450,000 people.
Augmented reality, a technology that superimposes computer-generated information on a user's view of the real world, offers a new platform to help physicians better visualize complex medical data, particularly before and during medical procedures.
Sudden cardiac death is a common cause of death in patients with congenital or acquired heart disease. An implanted cardiac defibrillator can effectively put a stop to any underlying cardiac arrhythmia.