What is the pathophysiology of AF?
The pathogenesis of AF is now thought to involve an interaction between initiating triggers, often in the form of rapidly firing ectopic foci located inside one or more pulmonary veins, and an abnormal atrial tissue substrate capable of maintaining the arrhythmia.
What is the pathophysiology of atrial fibrillation with RVR?
Rapid ventricular rate or response (RVR) AFib is caused by abnormal electrical impulses in the atria, which are the upper chambers of the heart. These chambers fibrillate, or quiver, rapidly. The result is a rapid and irregular pumping of blood through the heart.
What causes atrial fibrillation?
Atrial fibrillation is common in people with other heart conditions, such as:
- high blood pressure (hypertension)
- heart valve disease.
- congenital heart disease.
What is atrial fibrillation simple explanation?
When a person has AFib, the normal beating in the upper chambers of the heart (the two atria) is irregular, and blood doesn’t flow as well as it should from the atria to the lower chambers of the heart (the two ventricles). AFib may happen in brief episodes, or it may be a permanent condition.
What is atrial fibrillation NCBI?
Atrial fibrillation is the most common type of cardiac arrhythmia. It is due to abnormal electrical activity within the atria of the heart, causing them to fibrillate. It is characterized as a tachyarrhythmia, which means that the heart rate is often fast.
What is the pathophysiology of atrial flutter?
Pathophysiology – Atrial Flutter Typical atrial flutter is counterclockwise in direction and originates from a reentrant circuit around the tricuspid valve annulus and through the cavo-tricuspid isthmus. This results in negatively-directed flutter waves in the inferior leads.
What is AFib Wikipedia?
Atrial fibrillation (AF or A-fib) is an abnormal heart rhythm (arrhythmia) characterized by rapid and irregular beating of the atrial chambers of the heart. It often begins as short periods of abnormal beating, which become longer or continuous over time.
What drugs cause AFib?
Adults who use methamphetamines, cocaine, opiates or cannabis (marijuana) may have a 35% to 86% higher risk of developing an irregular heartbeat known as atrial fibrillation or AFib, which can lead to serious heart-related complications, according to an analysis of 10 years of medical data.
What is atrial fibrillation Medscape?
Atrial fibrillation (AF) has strong associations with other cardiovascular diseases, such as heart failure, coronary artery disease (CAD), valvular heart disease, diabetes mellitus, and hypertension. It is characterized by an irregular and often rapid heartbeat (see the first image below).
What causes atrial fibrillation Pubmed?
Risk factors for atrial fibrillation include advanced age, high blood pressure, underlying heart and lung disease, congenital heart disease, and increased alcohol consumption.
Why did I go into atrial fibrillation?
Fatigue and illness. Sleep deprivation,physical illness,and recent surgery are also common triggers for AFib.
When to call a doctor about AFIB?
– Are you taking any medications for blood pressure or other heart problems, or any anti-coagulants ( blood thinners )? – Are you allergic to any medications? – Do you have a personal or family history of bleeding or clotting problems? – Have you previously been hospitalized for heart problems or stroke?
What are the treatments for AFIB?
Atrial fibrillation (AFib) is a type of heart disorder that can cause an abnormally high heart rate. The best type of treatment that is recommended for a patient is based on their symptoms. Treatment options of AFib include lifestyle changes, medications, and procedures such as cardioversion or ablation.
What are symptoms of AFIB?
– Anxiety or panic attack. The surge of adrenaline during an anxiety attack often leads to a full-body response, including painful or tight sensations in the chest and heart palpitations. – Lightheadedness or fatigue. – Heartburn. – Hyperthyroidism. – Heart attack. – Heart disorders. – Other physiologic ailments.