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Supraventricular tachycardia (SVT) occurs when the heart beats too fast, causing the heart to not be completely filled with blood. The heart normally beats 60–100 bpm but with supraventricular tachycardia the heart beats 150–250 beats per minute (bpm). There are many types of supraventricular tachycardia that includes chronic atrial fibrillation (AFIB), paroxysmal sinus tachycardia, atrioventricular nodal reentry tachycardia (AVNRT) and atrioventricular reciprocating tachycardia (AVRT), including Wolff-Parkinson-White syndrome. If you suspect you have SVT, you should seek medical attention immediately.
Both men and women can have SVT, but it appears to be more common in women. SVT is the most common arrythmia in children. You can minimized the chance of having hernias by reducing your risk factors. Please discuss with your doctor for further information.
The most common symptom is palpitation or rapid heartbeat.
Others include dizziness, lightheadedness, shortness of breath, fainting, angina (chest pain), tiredness, sweating, and nausea. Symptoms may start and stop suddenly and last for a few minutes. Some people may not experience any symptoms at all. In some serious cases, patients may lose their consciousness.
There may be some signs or symptoms not listed above. If you have any concerns about a symptom, please consult your doctor.
If you have any signs or symptoms listed above or have any questions, please consult with your doctor. Everyone’s body acts differently. It is always best to discuss with your doctor what is best for your situation.
Normally, the electrical signal that starts in the heart’s sinoatrial (SA) node starts the contraction of the atria. Then, ventricles contract. SVT occurs when an extra electrical pathway triggers fast heartbeats. Causes include:
Certain factors may increase your risk of developing SVT:
Not having risk factors does not mean you cannot get SVT. These factors are for reference only. You should consult your doctor for more details.
The information provided is not a substitute for any medical advice. ALWAYS consult with your doctor for more information.
An electrocardiogram (ECG) is an effective tool that is widely practiced by physians for diagnosing tachycardia as well as other cardiovascular problems.
The doctor can make a diagnosis by listening to heart sounds. Blood moves abnormally through the mitral valve and cause a sound called a murmurwhich can be heard with the help of a stethocope. The timing and location of the murmur help the doctor tell which valve is affected.
The doctor uses a physical examination, medical history, electrocardiography (ECG), laboratory tests, and chest X-ray for the initial diagnosis. The doctor may order a Holter monitor, a portable 24-hour ECG, to determine how often SVT occurs during a 24-hour period. The doctor may also want an electrophysiology study (EPS) for more accurate diagnosis.
Treatment is not necessary for people without symptoms.
For symptoms, treatment includes vagal maneuvers, such as the Valsalva maneuver or coughing, and splashing ice water on the face.
Drugs like adenosine, diltiazem and verapamil may be prescribed. The doctor may use electrical cardioversion for emergency treatment or if other treatments don’t work. In electrical cardioversion, a brief electric shock is given to reset the heart’s rhythm.
For recurring SVT, treatment may involve drugs (such as beta-blockers), pacemakers, catheter ablation, and surgery.
The following lifestyles and home remedies might help you cope with supraventricular tachycardia.
If you have any questions, please consult with your doctor to better understand the best solution for you.
Hello Health Group does not provide medical advice, diagnosis or treatment.
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