ประเภทของภาวะหัวใจเต้นผิดปกติ (Types of Arrhythmias)
Premature atrial contractions (PACs)—These early extra beats start in one of the atria, the heart’s two upper chambers. They are harmless and don’t usually require treatment.
Premature ventricular contractions (PVCs)—Common and generally benign, a PVC is felt as a skipped heartbeat but is actually an early extra beat that starts in the heart’s two lower chambers, the ventricles.
Atrial fibrillation (AF) —A quivering or irregular heartbeat in the upper chambers of the heart that causes blood to move through the ventricles more slowly than normal. Atrial fibrillation can lead to blood clots, stroke, heart failure, and other heart-related complications. It’s the most common serious arrhythmia in people over the age of 65.
Atrial flutter—Similar to atrial fibrillation but usually more organized and regular, atrial flutter happens most often in people who have had surgery for heart disease. It usually changes to atrial fibrillation.
Ventricular fibrillation—When the heart’s lower chambers quiver and can’t contract or pump blood around the body, causing a medical emergency. Ventricular fibrillation must be treated with CPR and defibrillation as soon as possible.
Sick sinus syndrome—A slow or erratic heartbeat that occurs when your sinus node, which is responsible for setting the pace of your heart, doesn’t send impulses normally, causing your heart to not pump enough blood. This condition is sometimes treated with a pacemaker.