![]() ![]() The sinus node sends electrical signals that typically start each heartbeat. The heart's rhythm is controlled by a natural pacemaker (the sinus node) in the right upper chamber (atrium). The heart is made of four chambers - two upper chambers (atria) and two lower chambers (ventricles). The signal then travels through the atria to the atrioventricular (AV) node and into the ventricles, causing them to contract and pump blood. In a typical heart rhythm, a tiny cluster of cells at the sinus node sends out an electrical signal. Sensation of a fast or pounding heartbeat.If you feel like your heart is beating too fast, make an appointment to see a health care provider.Ĭall 911 or your local emergency number if you have any of the following symptoms for more than a few minutes: ![]() For example, the heart rate may increase with exercise. Sometimes a fast heartbeat, or heart rate, isn't a concern. It's important to get a prompt diagnosis and care. It's often discovered by chance during a heart test. ![]() This condition is called Wolff-Parkinson-White (WPW) pattern. Some people with an extra electrical pathway don't have signs or symptoms of a fast heartbeat. Blue or gray coloring to the skin, lips and nails (cyanosis).Signs and symptoms of WPW syndrome in infants can include: A rapid, fluttering or pounding heartbeat (palpitations).In general, signs and symptoms that may occur in people with WPW syndrome include: Some people with WPW syndrome also have a fast and chaotic heart rhythm problem called atrial fibrillation. Supraventricular tachycardia causes episodes of a fast, pounding heartbeat that begin and end abruptly. The most common arrhythmia seen with WPW syndrome is supraventricular tachycardia. Other signs and symptoms of WPW syndrome are related to the fast heart rate and underlying heart rhythm problem (arrhythmia). Episodes can occur during exercise or while at rest. The most common sign of Wolff-Parkinson-White (WPW) syndrome is a heart rate greater than 100 beats a minute.Įpisodes of a fast heart rate (tachycardia) can begin suddenly and may last a few seconds or several hours. ![]()
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