Arrhythmia

Can your fitness tracker save your life in the ER?

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 ...

Apr 05, 2016
popularity3 comments 0

Weighing the health benefits of coffee

Chances are, you or someone you know is a coffee drinker. Admittedly, I love coffee and my relationship with it is one of slight dependency. Thus I am fully invested in exploring the research into its health effects.

Apr 15, 2016
popularity38 comments 0

New app improves treatment of atrial fibrillation

Atrial fibrillation increases the risk of stroke. Treatment with oral anticoagulation reduces this risk but instead increases the risk of bleeding. Today, a new blood test based tool enabling better and more individualized ...

Apr 04, 2016
popularity1 comments 0

Cardiac dysrhythmia (also known as arrhythmia and irregular heartbeat) is any of a large and heterogeneous group of conditions in which there is abnormal electrical activity in the heart. The heart beat may be too fast or too slow, and may be regular or irregular.

Some arrhythmias are life-threatening medical emergencies that can result in cardiac arrest. Others cause symptoms such as an abnormal awareness of heart beat (palpitations), and may be merely annoying. These palpitations have also been known to be caused by atrial/ventricular fibrillation, wire faults, and other technical or mechanical issues in cardiac pacemakers/defibrillators. Still others may not be associated with any symptoms at all, but may predispose the patient to potentially life threatening stroke or embolism.

Some arrhythmias are very minor and can be regarded as normal variants. In fact, most people will on occasion feel their heart skip a beat, or give an occasional extra strong beat; neither of these is usually a cause for alarm.

Proarrhythmia is a new or more frequent occurrence of pre-existing arrhythmias, paradoxically precipitated by antiarrhythmic therapy, which means it is a side effect associated with the administration of some existing antiarrhythmic drugs, as well as drugs for other indications. In other words, it is a tendency of antiarrhythmic drugs to facilitate emergence of new arrhythmias.

The term sinus arrhythmia refers to a normal phenomenon of mild acceleration and slowing of the heart rate that occurs with breathing in and out. It is usually quite pronounced in children, and steadily decreases with age. This can also be present during meditation breathing exercises that involve deep inhaling and breath holding patterns.

This text uses material from Wikipedia licensed under CC BY-SA

Latest Spotlight News

High-fat diet starves the brain

A high-fat diet of three days in mice leads to a reduction in the amount of glucose that reaches the brain. This finding was reported by a Research Group led by Jens Brüning, Director at the Max Planck Institute for Metabolism ...

Action recognition without mirror neurons

When someone stands opposite us and purposefully raises their arm to make some kind of movement, our brain asks itself whether they intend to attack us or, perhaps, simply greet us. Scientists from the Department of Human ...

Lifestyle has a strong impact on intestinal bacteria

Everything you eat or drink affects your intestinal bacteria, and is likely to have an impact on your health. That is the finding of a large-scale study led by RUG/UMCG geneticist Cisca Wijmenga into the effect of food and ...