A to Z: Paroxysmal Supraventricular Tachycardia (PSVT)enparentshttps://kidshealth.org/EN/images/headers/P-khAZDictionary-enHD-AR1.jpgParoxysmal supraventricular tachycardia (PSVT) is a type of arrhythmia in which the heart beats very rapidly.Paroxysmal supraventricular tachycardia, supraventricular tachycardia, PSVT, paroxysmal SVT, Wolff-Parkinson-White syndrome, arrhythmia, racing heart, rapid heartbeat, Valsalva maneuver, cardiac ablation, CD1Cardiology06/12/201303/18/201909/02/201919417543-5cb3-4372-b31f-33695659dbbbhttps://kidshealth.org/ws/RadyChildrens/en/parents/az-psvt.html/<p>Paroxysmal supraventricular tachycardia (PSVT) is a type of <a href="https://kidshealth.org/ws/RadyChildrens/en/parents/arrhythmias.html/">arrhythmia</a> (abnormal heart rhythm) in which the heart beats very rapidly (about 160&ndash;220 times per minute). PSVT starts in <a href="https://kidshealth.org/ws/RadyChildrens/en/parents/heart.html/">heart</a> tissue above the ventricles, and occurs in sudden episodes that can last minutes or hours.</p> <h3>More to Know</h3> <p>PSVT can be the result of another heart condition but is most often caused by abnormal electrical pathways in the heart. It is most common among young people and infants.</p> <p>In addition to heart palpitations, or feeling like the heart is racing, symptoms of PSVT may include shortness of breath, anxiety, chest pain, rapid pulse, dizziness, or <a href="https://kidshealth.org/ws/RadyChildrens/en/parents/az-symptoms-fainting.html/">fainting</a>.</p> <p>Smoking and the use of alcohol, caffeine, and drugs increase the risk for PSVT.</p> <p>To slow down the heartbeat, people with PSVT can try splashing ice water on their face, coughing while leaning over, and straining as if having a bowel movement (Valsalva maneuver). If symptoms are severe or the episode lasts more than 20 minutes, emergency treatment such as drug injections or electrical shock may be necessary.</p> <p>Long-term solutions for people with recurring PSVT can include a procedure called cardiac ablation, medications, pacemakers, or even surgery.</p> <h3>Keep in Mind</h3> <p>While PSVT can be scary and uncomfortable, it usually isn't considered dangerous for people with otherwise healthy hearts.</p> <p><em>All A to Z dictionary entries are regularly reviewed by KidsHealth medical experts.</em></p>
A to Z: Atrial FlutterAtrial flutter is an abnormal heart rhythm that causes the heart to beat too fast.https://kidshealth.org/ws/RadyChildrens/en/parents/az-atrial-flutter.html/4a4962a1-204e-4173-a4e7-af55bbeda667
A to Z: PalpitationsLearn about arrhythmias and conditions that affect the heart and heartbeat.https://kidshealth.org/ws/RadyChildrens/en/parents/az-palpitations.html/d630ff54-93c4-4dcf-82d1-34ad1992c21f
A to Z: TachycardiaLearn more about types of arrhythmias and problems of the heart.https://kidshealth.org/ws/RadyChildrens/en/parents/az-tachycardia.html/0af116e7-b6aa-44eb-9198-e1fcc89bd99d
Arrhythmia (Abnormal Heartbeat)An arrhythmia is an abnormal heartbeat usually caused by an electrical "short circuit" in the heart. Many are minor and not a health threat, but some can indicate a more serious problem.https://kidshealth.org/ws/RadyChildrens/en/parents/arrhythmias.html/19038a47-2ae4-48f8-8bd5-9e46150171b0
ArrhythmiasArrhythmias are abnormal heartbeats usually caused by an electrical "short circuit" in the heart. Many are minor and not a significant health threat, but others can indicate a more serious problem.https://kidshealth.org/ws/RadyChildrens/en/teens/arrhythmias.html/79184e00-417e-4ce4-a49b-2e89de1b1bd4
FaintingFainting is pretty common in teens. The good news is that most of the time it's not a sign of something serious.https://kidshealth.org/ws/RadyChildrens/en/teens/fainting.html/39ee89ff-e68b-438a-ad17-4ec77092ccc5
First Aid: FaintingFainting is a loss of consciousness that can be caused by many things. Here's what to do if your child faints or is about to faint.https://kidshealth.org/ws/RadyChildrens/en/parents/fainting-sheet.html/b8ba5e0a-d99a-4baa-bbc6-7343aa8af606
Heart and Circulatory SystemThe heart and circulatory system are our body's lifeline, delivering blood to the body's tissues. Brush up on your ticker with this body basics article.https://kidshealth.org/ws/RadyChildrens/en/parents/heart.html/52398b6a-54a6-4272-a569-42ed5b12aeac
The HeartYour heart beats and sends oxygen throughout your entire body. Find out how it works and how heart problems can be fixed.https://kidshealth.org/ws/RadyChildrens/en/kids/center/heart-center.html/d4cb468c-ba42-454a-94bf-4173f8e15a69
kh:age-allAgesOrAgeAgnostickh:clinicalDesignation-cardiologykh:genre-dictionarykh:primaryClinicalDesignation-cardiologyPhttps://kidshealth.org/ws/RadyChildrens/en/parents/dictionary/p/e492181e-6c97-4cd3-8738-cebc1f62bc38Cardiology A to Zhttps://kidshealth.org/ws/RadyChildrens/en/parents/dictionary/az-cardio/04be85fa-f4f5-44c2-a321-21821f326c6a