SVT is an acronym that stands for Supraventricular tachycardia. It is a type of abnormal heart rhythm or arrhythmia that originates above the ventricles of the heart.
Supraventricular refers to the fact that this rapid heart rate begins in the upper chambers or atria of the heart, while tachycardia means an abnormally fast heartbeat. In SVT, electrical signals in the heart's electrical pathway become disrupted, causing the atria to contract more rapidly than normal, leading to a fast and irregular heartbeat.
SVT can occur suddenly and without warning, and the episodes may last anywhere from a few seconds to several hours. During an SVT episode, individuals may experience symptoms such as palpitations, rapid pulse, shortness of breath, dizziness, lightheadedness, chest discomfort, or fainting.
Treatment for SVT depends on the severity of symptoms and the frequency of episodes. Some cases can be managed through lifestyle changes, including avoiding triggers such as caffeine and nicotine, managing stress, and practicing relaxation techniques. Medications may also be prescribed to control the heart rate or restore normal rhythm during an episode. In more severe cases, procedures such as electrical cardioversion or catheter ablation may be recommended to correct the arrhythmia and prevent future episodes.
It is important for individuals experiencing symptoms of SVT to seek medical attention for diagnosis and proper management of the condition.