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.
A new study in Journal of the American Heart Association, reveals that drinking 32 ounces of an energy drink with 320 milligrams (mg) of caffeine results in intense changes in the electrical activity of the heart and in blood pressure, compared with drinking 32 ounces of a control drink with the same amount of caffeine in it.
Atrial fibrillation, an irregular heart rhythm that can cause an increased risk of stroke, affects approximately 2.2 million Americans each year. According to projections, that number is set to double in the next 25 years.
iRhythm Technologies, Inc., a leading digital health care solutions company focused on the advancement of cardiac care, announced the recent publication of two documents in support of extended continuous ambulatory monitoring for arrhythmia detection.
Bielefeld University is strengthening its cooperations in medical research. In five new projects, scientists at the university are cooperating with the University hospitals of the Ruhr University of Bochum in the Ostwestfalen-Lippe region.
New research suggests that an alternative to warfarin, when given at a low dose to dialysis patients, can be maintained in the blood at safe levels for potentially preventing strokes.
Nearly a million new forms of malware are unleashed on the world every day. Manufacturers of software for smartphones, laptops and security cameras, as well as banks, retailers and government agencies, release upgrades frequently to try to protect customers and assets.
For the first time at ECR in Vienna (March 1 – 5) the healthcare division of Siemens AG will be appearing under its new brand – Siemens Healthineers – and with the motto, “Let’s shape the future of healthcare together”.
Contrary to what was previously assumed, physical exercise does not lead to harmful ventricular enlargement.
More than $9 million in federal grants will help fund researchers in the Ohio State University Davis Heart and Lung Research Institute and their collaborators across the university campus to investigate new causes and treatments for cardiovascular disease.
Approximately 350,000 patients in Germany suffer from various forms of cardiac arrhythmia. The condition can lead to permanent damage as a result of stroke, or it may cause sudden heart failure.
Loyola Medicine is the only center in the Midwest enrolling patients in a landmark clinical trial of a new procedure to treat a life-threatening heart rhythm disorder called ventricular tachycardia.
More than half of patients with atrial fibrillation (AF) become asymptomatic after catheter ablation, reports the largest study of the procedure published today in European Heart Journal.
Of patients over age 65 who received an implantable cardioverter-defibrillator (ICD) after surviving sudden cardiac arrest or a near-fatal arrhythmia, almost 80 percent survived two years--a higher rate than found in past trials performed to demonstrate the efficacy of the devices in this situation, according to a study today in the Journal of the American College of Cardiology.
Atrial fibrillation, which is the most common cardiac arrhythmia, is an important risk factor for strokes.
For patients with atrial fibrillation, the most common form of heart arrhythmia, a main goal of treatment is stroke prevention.
A consortium directed by UCLA's Dr. Kalyanam Shivkumar has received a three-year, $8.6 million grant from the National Institutes of Health to map the heart's nervous system.
Iron accumulation in myocardial cells, potentially resulting in heart failure or fatal arrhythmia, is one of the complications most feared by patients with thalassemia major, a hereditary disease also known as Mediterranean anemia.
A suite of sensors can predict heart failure events by detecting when a patient's condition is worsening, according to Dr. John Boehmer, professor of medicine, Penn State College of Medicine, who presented the findings at the American Heart Association annual meeting in New Orleans.
Researchers at the Polytechnic University of Valencia and Hospital Gregorio Marañón in Madrid have partnered to develop a more efficient system for detecting and treating atrial fibrillation that will be in hospitals soon.
The term “stress” originates not in our minds or bodies, but from physics. It is the internal forces generated in an object in response to an external load. In the 1950s, Hans Selye adopted the term to characterize how living organisms change...