Supraventricular Tachycardia Overview & Full Info

Treatment for supraventricular tachycardia (SVT) is a condition where the body does not require medical attention. To reduce its symptoms, medical workers may recommend massage of the carotid sinuses, vagal maneuvers, medications, cardioversion, a catheter, and a pacemaker.

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These procedures can help reduce the heart rate of the patients and improve their heart health. Patients should prioritize a heart-healthy lifestyle as part of their treatment. Sextventricular tachycardia can be treated with a combination of heart-friendly foods, regular physical activity, giving up tobacco use, maintaining weight, lowering cholesterol and blood pressure, reducing or avoiding alcohol consumption, following up with follow-up care, and medications that don’t meet the standard. Thyoga, medication, and methods for unwinding can help reduce anxiety.

A fast, erratic heartbeat (arrhythmia) that occurs in the upper chambers of the heart is known as supraventricular tachycardia (SVT). Paroxysmal supraventricular tachycardia is another name for SVT.

The average human heart beats somewhere from 60 to 100 times per minute. If your heart rate of more than 100 beats a minute is called tachycardia. During an episode of SVT, the heart beats typically 150 to 220 times a minute, but it might occasionally beat faster or slower.

SVT patients rarely require therapy or limits on their daily activities. Some people can manage their symptoms of a racing heart with a combination of medicine and a change in lifestyle; others need surgical intervention.

Types of Supraventricular Tachycardia

Supraventricular tachycardia (SVT) falls into three primary groups:

  • Atrioventricular nodal reentrant tachycardia (AVNRT) (AVNRT). Among the various forms of supraventricular tachycardia, this one is the most prevalent.
  • Reciprocating tachycardia between the atrium and ventricle (AVRT). The second most frequent form of supraventricular tachycardia is atrial flutter/fibrillation (AVRT). Younger persons tend to be the ones to receive a diagnosis.
  • Symptoms include rapid heart rate in the atria. Those with preexisting heart conditions tend to be diagnosed with this particular SVT. Atrial tachycardia doesn’t include the AV node.

Supraventricular tachycardia can also take the form of:

  • Rapid heart rate originating in the sinuses; sinus tachycardia
  • Reentrant tachycardia of the sinus node (SNRT)
  • Tachycardia in the sinus node (IST)
  • Instances of tachycardia in several atria (MAT)
  • Junctional ectopic tachycardia (JET) (JET)
  • Junctional tachycardia that doesn’t come and go (NPJT)

Symptoms of Supraventricular Tachycardia

SVT is a fast heart rate (100 or more beats per minute) that can last for minutes or days.The fast heartbeat may come and go unexpectedly, with spans of typical heart rates in between.

Not everyone with SVT exhibits symptoms.

These are some signs of supraventricular tachycardia:

  • A pounding or racing heart
  • Palpitations and/or chest pain (palpitations)
  • The back of the neck pain throbbing
  • Weakness or feeling very fatigued (fatigue) (fatigue)

The Symptoms Include:

  • Chest Pain
  • Breathlessness
  • Feelings of faintness or vertigo
  • Sweating

Symptoms include as syncope (fainting) and near-syncope

It might be challenging to recognize SVT symptoms in infants and very young children. Perspiring, inadequate nutrition, a sallow complexion, and a racing heart are all symptoms. SVT screening should be discussed with your child’s doctor if he or she is an infant or young child who is experiencing any of these symptoms.

Is It Time To See A Doctor?

Unless you already have significant heart damage or another serious cardiac problem, supraventricular tachycardia (SVT) is unlikely to be fatal. SVT can cause unconsciousness or cardiac arrest in extreme cases.

If you’ve never experienced an extremely fast pulse before, or if an irregular heartbeat lasts more than a few seconds, you should see your doctor immediately.

It is possible that some of the symptoms of SVT are indicators of a more significant underlying health issue. In the event of an SVT episode lasting more than a few minutes or accompanied by any of the following symptoms, you should immediately dial 911 or your local emergency number.

  • Anxiety
  • Breathing difficulties
  • Weakness
  • Dizziness

Causes of Supraventricular Tachycardia

For some persons, the onset of an episode of supraventricular tachycardia (SVT) can be directly linked to a specific factor (trigger), such as physical exertion, emotional strain, or sleep deprivation. A discernible trigger is not always there.

Some potential triggers for an episode of SVT include:

  • Health issues related to the heart
  • Deficiency of the heart, often known as heart failure
  • Wolff-Parkinson-White syndrome and other heart diseases
  • Lung problems that persist for a long time
  • Extreme Caffeine Content
  • Drinking too much alcohol

Use of illicit substances like cocaine and methamphetamine

  • Pregnancy
  • Smoking
  • Thyroid illness
  • Medications, such as those used to treat asthma and allergies

What causes the heart to beat at its regular rate?

There are four chambers in the human heart: two upper chambers (atria) and two lower chambers (ventricles) (ventricles).

A natural pacemaker (the sinus node) in the right upper chamber of the heart regulates its rhythm (atrium). Most heartbeats are initiated by electrical signals sent by the sinus node. In response to these impulses, the atrial muscles contract and force blood into the ventricles.

At the AV node, a collection of cells, the cardiac signals are attenuated. For the ventricles to fill with blood, this brief pause is necessary. After receiving electrical signals, the ventricles contract and force blood into the lungs and throughout the body.

A normal heart has a resting rate of 60–100 beats per minute due to the efficient transmission of electrical signals.

SVT develops when a series of premature beats in the upper chambers of the heart are triggered by incorrect electrical connections in the heart (atria). This increases heart rate rapidly. There is insufficient time for blood to fill the heart’s chambers before they begin to contract. If your brain isn’t getting enough blood and oxygen, you may feel faint or dizzy.

Risk factors

Most pediatric arrhythmia cases involve supraventricular tachycardia (SVT). Pregnant women are at danger, but anybody can have this medical emergency.

The likelihood of developing supraventricular tachycardia may also be influenced by the following:

  • Age. Middle-aged and elderly adults tend to have an increased risk of developing certain forms of SVT.

Coronary artery disease, various forms of heart disease, or a history of heart surgery. SVT risk may be raised by preexisting cardiac conditions such as narrowed arteries, heart failure, heart or valve damage, cardiomyopathy, and so on.

Inherited heart defects A congenital heart defect is a disorder with the heart that is present at birth and can lead to a variety of abnormal heart rhythms, including SVT.

A condition affecting the thyroid gland. Supraventricular tachycardia is more likely in people who also have an overactive or underactive thyroid.

  • Diabetes. Uncontrolled diabetes significantly raises the danger of cardiovascular disease and hypertension.

obstructive sleep apnea. This disease, in which breathing is disrupted during sleep, can raise the risk of supraventricular tachycardia.

  • Nicotine and illegal drug use. A bout of supraventricular tachycardia can be triggered by nicotine and illegal drugs like amphetamines and cocaine.

Complications of Supraventricular Tachycardia

Supraventricular tachycardia (SVT) can weaken the heart and lead to heart failure if it goes untreated and occurs frequently, especially if it occurs alongside other medical disorders.

It is possible for an episode of SVT to result in cardiac arrest or loss of consciousness.

Diagnosis of Supraventricular Tachycardia

Your doctor will ask you about your symptoms and do a physical exam to make a diagnosis of supraventricular tachycardia (SVT). Thyroid disease is only one of several disorders that might manifest similarly and necessitates a blood test.


In order to analyze the heart and make a diagnosis of supraventricular tachycardia (SVT), the following tests may be performed:

  • Heart Electrode Graph (ECG or EKG). Electrocardiograms are recordings of the heart’s electrical activity. An electrocardiogram (ECG) records the timing and length of the heart’s various electrical phases. Depending on the rate at which the heart is pounding, it can reveal the person’s general health.
  • Incorporating a Holter monitor. This wearable ECG monitor records cardiac activity throughout the day.

This device is an event recorder. The purpose of this portable ECG monitor is to identify irregular heartbeats. When signs and symptoms appear, you trigger an action. Event recorders typically last 30 days or until arrhythmia or symptoms occur.

  • Echocardiogram. The beating heart can be visualized with the use of ultrasonic waves. Echocardiograms reveal heart and valve information.
  • A loop recorder that can be surgically implanted. This implantable device monitors the heart for abnormal rhythms and is placed subcutaneously in the chest.

There are further tests that could be performed, such as:

There is a stress test that involves physical activity. Stress and exercise can cause supraventricular tachycardia. A stress test involves cardio equipment like a treadmill or stationary cycle and tracking your heart rate and other vitals. If your doctor suspects heart disease is causing your arrhythmia and you cannot exercise, you may be given medication to simulate exercise during the test.

  • The tilt table. If you’ve experienced episodes of fainting, your doctor may recommend this examination. While lying on a table, your heart rate and blood pressure are measure. The table will tilt when you stand up. Your doctor will monitor your heart and nervous system’s response to the new perspective.
  • Analysis of electrical activity in the brain (EP). Catheters are thin, flexible tubes placed into a blood artery (usually in the groin) and manipulated to specific cardiac sites. The catheters’ sensors can capture the electrical activity of the heart. A doctor can observe the propagation of electrical signals throughout the heart during a beat with the help of an EP research.

Treatment For Supraventricular Tachycardia

Nonetheless, the vast majority of patients with supraventricular tachycardia (SVT) do not require medical attention. If your attacks are long or frequent, your doctor may recommend:

  • Massage of the carotid sinuses. Medical workers gently compress the neck’s carotid artery at the bifurcation. This massage releases pulse-lowering chemicals. Carotid sinus massage is not something you should try to perform on your own.
  • Vagal maneuvers. Coughing, bearing down as if having a bowel movement, or applying an ice pack to the face are all simple but effective ways to reduce heart rate. In the event that you experience SVT, your doctor may instruct you to take the following steps. The vagus nerve, which aids in heart rate regulation, is impact by these procedures.
  • Medications. Repeated episodes of SVT may warrant a prescription for medicine to slow your heart rate or normalize your rhythm. In this method you treatment of supraventricular tachycardia to reduce adverse effects and take the medicine as advised.
  • Cardioversion. Electrical shocks delivered through paddles or patches on the chest can assist reset the heart’s rhythm. Whenever vagal techniques and drugs have failed, cardioversion has been the standard treatment.
  • Ablation by means of a catheter. Catheters are thin, flexible tubes inserted into veins or arteries, typically through the groin. A sensor on the catheter tip heats or chills the heart to create small scars that block aberrant electrical signals.
  • Pacemaker. Pacemakers are small, implanted devices that electrically stimulate the heart to beat. It is a relatively simple surgical technique to implant the pacemaker under the skin in the upper chest, just below the collarbone. The device is connect to the heart through a wire.

Wellness routines and natural Treatment for supraventricular tachycardia:

Supraventricular tachycardia patients should prioritize a heart-healthy lifestyle as part of their Treatment of supraventricular tachycardia.

Some examples of how to improve your heart’s health are:

  • Consuming only heart-friendly foods. Have a diet full of fresh produce and nutritious grains. Cut back on salt and bad fats.
  • Doing regular physical activity. Physical activity and exercise should be done regularly.
  • Giving up tobacco use. Talk to your doctor about resources available to you if you’re having trouble quitting smoking on your own.
  • Keeping your weight steady. When a person is overweight, their risk of developing cardiovascular disease is increasing. Find out what your ideal weight should be by consulting your doctor.
  • Lowering cholesterol and blood pressure. You can treat hypertension (high blood pressure) and high cholesterol by making dietary and pharmacological modifications as directed by your doctor.
  • Reducing or avoiding alcohol consumption. But remember to drink responsibly if you decide to imbibe. In general, it’s OK for healthy individuals to have one drink per day; women of all ages and men over the age of 65 can have two drinks per day.
  • Keeping up with follow-up care. Always follow your doctor’s orders when taking medication. Keep up with your routine checkups. If you see a worsening of your SVT symptoms, you should contact your doctor.

Treatment of supraventricular tachycardia by medication that isn’t on the standard

It’s possible that some forms of alternative medicine can help you relax and unwind. Some persons get supraventricular tachycardia when under stress. Methods for reducing anxiety and treatment supraventricular tachycardia.

  • Yoga
  • Meditation
  • Methods for unwinding


If you want to avoid having an episode of supraventricular tachycardia (SVT), it’s crucial to learn what sets you off. To better understand what sets off your anxious thoughts, you can benefit from maintaining a journal. Keep track of your heart rate, symptoms, and what you were doing during an SVT episode.

In addition, exercise caution when taking any medication. Certain medications, particularly over-the-counter remedies, may contain stimulants that increase heart rate.

The best way to avoid SVT is to maintain good heart health. Adopt a heart-healthy diet, don’t smoke, get regular exercise and handle stress.

Caffeine in moderate doses does not usually bring on an attack of supraventricular tachycardia in those who already have the heart rhythm disorder. However, it’s best to stay away from caffeine in large quantities.

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