Sinus tachycardia

Key Points about Sinus Tachycardia • Sinus tachycardia may occur when your heart's sinoatrial node, the heart's natural pacemaker, sends quicker than normal electrical signals, resulting in a rapid and steady heart rate increase. • Sinus tachycardia occurs when something, such as physiological stress, pain, fever, anxiety, disrupts the heart's electrical signals that control how quickly the heart pumps blood. • If you have any condition that puts a strain on the heart, such as diabetes, heart disease, anemia, or high blood pressure, you are at a higher risk of developing sinus tachycardia. • Complications associated with sinus tachycardia include blood clots that could lead to a heart attack or stroke, heart failure, loss of consciousness, or sudden death. • Your doctor can diagnose sinus tachycardia by reviewing your medical history, performing a physical exam, and ordering diagnostic tests such as an electrocardiogram, blood tests, or an echocardiogram. • Some cases of sinus tachycardia do not need treatment. If you do need treatment, your doctor will treat the underlying condition with medications or lifestyle changes. If those treatments are not effective, you may need a cardiac ablation. Overview Sinus tachycardia is a type of irregular heartbeat that is characterized by a faster than normal heart rhythm. Your heart's sinus node generates electrical impulses that travel through the heart muscle, causing it to beat. A normal sinus rhythm has a heart rate of between 60 ...

Overview Supraventricular tachycardia (SVT) is as an irregularly fast or erratic heartbeat (arrhythmia) that affects the heart's upper chambers. SVT is also called paroxysmal supraventricular tachycardia. The typical heart beats about 60 to 100 times a minute. A heart rate of more than 100 beats a minute is called a tachycardia (tak-ih-KAHR-dee-uh). During an episode of SVT, the heart beats about 150 to 220 times a minute, but it can occasionally beat faster or slower. Most people with supraventricular tachycardia don't need activity restrictions or treatment. For others, lifestyle changes, medication and heart procedures may be needed to control or eliminate the rapid heartbeats and related symptoms. Types Supraventricular tachycardia (SVT) falls into three main groups: • • Atrioventricular reciprocating tachycardia (AVRT). AVRT is the second most common type of supraventricular tachycardia. It's most commonly diagnosed in younger people. • SVT is more commonly diagnosed in people who have heart disease. Atrial tachycardia doesn't involve the AV node. Other types of supraventricular tachycardia include: • Sinus tachycardia • Sinus nodal reentrant tachycardia (SNRT) • Inappropriate sinus tachycardia (IST) • Multifocal atrial tachycardia (MAT) • Junctional ectopic tachycardia (JET) • Nonparoxysmal junctional tachycardia (NPJT) Symptoms The main symptom of supraventricular tachycardia (SVT) is a very fast heartbeat (100 beats a minute or more) that may last for a few minutes...

Atrial tachycardia (AT) is a type of abnormal heart rhythm, or What happens during atrial tachycardia? A normal heartbeat begins with an electrical impulse from the sinus node, a single point in the heart's right atrium (right upper chamber). During atrial tachycardia, an electrical impulse outside the sinus node fires repeatedly, often due to a short circuit — a circular electrical pathway. Electricity circles the atria again and again, causing the upper chambers to contract more than 100 times per minute. (A An arrhythmia centered in the upper chambers of the heart is called a supraventricular tachycardia (SVT) — literally, fast "heartbeat above the ventricles" (lower chambers). Atrial tachycardia usually occurs for brief periods and starts and stops spontaneously. That's called paroxysmal AT. If it continues, it is called persistent AT What are the symptoms of atrial tachycardia? Atrial tachycardia may cause no symptoms at all or may cause any of the following: • Palpitations (a fluttering in the chest) • Fainting • Chest pain • Shortness of breath • Fatigue • Heart failure What causes atrial tachycardia? Atrial tachycardia occurs most commonly in elderly patients and those with other types of heart disease, though it occasionally appears in children, younger people and those with healthy hearts. Causes include: • A "stretched" atrium resulting from high blood pressure ( • A previous heart attack • Excessive use of alcohol, cocaine and other stimulants • An "irritable f...

Overview Supraventricular tachycardia (SVT) is as an irregularly fast or erratic heartbeat (arrhythmia) that affects the heart's upper chambers. SVT is also called paroxysmal supraventricular tachycardia. The typical heart beats about 60 to 100 times a minute. A heart rate of more than 100 beats a minute is called a tachycardia (tak-ih-KAHR-dee-uh). During an episode of SVT, the heart beats about 150 to 220 times a minute, but it can occasionally beat faster or slower. Most people with supraventricular tachycardia don't need activity restrictions or treatment. For others, lifestyle changes, medication and heart procedures may be needed to control or eliminate the rapid heartbeats and related symptoms. Types Supraventricular tachycardia (SVT) falls into three main groups: • • Atrioventricular reciprocating tachycardia (AVRT). AVRT is the second most common type of supraventricular tachycardia. It's most commonly diagnosed in younger people. • SVT is more commonly diagnosed in people who have heart disease. Atrial tachycardia doesn't involve the AV node. Other types of supraventricular tachycardia include: • Sinus tachycardia • Sinus nodal reentrant tachycardia (SNRT) • Inappropriate sinus tachycardia (IST) • Multifocal atrial tachycardia (MAT) • Junctional ectopic tachycardia (JET) • Nonparoxysmal junctional tachycardia (NPJT) Symptoms The main symptom of supraventricular tachycardia (SVT) is a very fast heartbeat (100 beats a minute or more) that may last for a few minutes...

Atrial tachycardia (AT) is a type of abnormal heart rhythm, or What happens during atrial tachycardia? A normal heartbeat begins with an electrical impulse from the sinus node, a single point in the heart's right atrium (right upper chamber). During atrial tachycardia, an electrical impulse outside the sinus node fires repeatedly, often due to a short circuit — a circular electrical pathway. Electricity circles the atria again and again, causing the upper chambers to contract more than 100 times per minute. (A An arrhythmia centered in the upper chambers of the heart is called a supraventricular tachycardia (SVT) — literally, fast "heartbeat above the ventricles" (lower chambers). Atrial tachycardia usually occurs for brief periods and starts and stops spontaneously. That's called paroxysmal AT. If it continues, it is called persistent AT What are the symptoms of atrial tachycardia? Atrial tachycardia may cause no symptoms at all or may cause any of the following: • Palpitations (a fluttering in the chest) • Fainting • Chest pain • Shortness of breath • Fatigue • Heart failure What causes atrial tachycardia? Atrial tachycardia occurs most commonly in elderly patients and those with other types of heart disease, though it occasionally appears in children, younger people and those with healthy hearts. Causes include: • A "stretched" atrium resulting from high blood pressure ( • A previous heart attack • Excessive use of alcohol, cocaine and other stimulants • An "irritable f...

Key Points about Sinus Tachycardia • Sinus tachycardia may occur when your heart's sinoatrial node, the heart's natural pacemaker, sends quicker than normal electrical signals, resulting in a rapid and steady heart rate increase. • Sinus tachycardia occurs when something, such as physiological stress, pain, fever, anxiety, disrupts the heart's electrical signals that control how quickly the heart pumps blood. • If you have any condition that puts a strain on the heart, such as diabetes, heart disease, anemia, or high blood pressure, you are at a higher risk of developing sinus tachycardia. • Complications associated with sinus tachycardia include blood clots that could lead to a heart attack or stroke, heart failure, loss of consciousness, or sudden death. • Your doctor can diagnose sinus tachycardia by reviewing your medical history, performing a physical exam, and ordering diagnostic tests such as an electrocardiogram, blood tests, or an echocardiogram. • Some cases of sinus tachycardia do not need treatment. If you do need treatment, your doctor will treat the underlying condition with medications or lifestyle changes. If those treatments are not effective, you may need a cardiac ablation. Overview Sinus tachycardia is a type of irregular heartbeat that is characterized by a faster than normal heart rhythm. Your heart's sinus node generates electrical impulses that travel through the heart muscle, causing it to beat. A normal sinus rhythm has a heart rate of between 60 ...