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Supraventricular tachycardia (SVT) is an umbrella term for fast heart rhythms arising from the upper part of the heart. [2] This is in contrast to the other group of fast heart rhythms – ventricular tachycardia , which start within the lower chambers of the heart . [ 2 ]
Paroxysmal supraventricular tachycardia (PSVT) is a type of supraventricular tachycardia, named for its intermittent episodes of abrupt onset and termination. [3] [6] Often people have no symptoms. [1] Otherwise symptoms may include palpitations, feeling lightheaded, sweating, shortness of breath, and chest pain. [2] The cause is not known. [3]
An episode of SVT may present with palpitations, dizziness, shortness of breath, or losing consciousness (fainting). The electrocardiogram (ECG) would appear as a narrow-complex SVT. Between episodes of tachycardia the affected person is likely to be asymptomatic; however, the ECG would demonstrate the classic delta wave in Wolff–Parkinson ...
SVT is recognized by the presence of pain, warmth, redness, and tenderness over a superficial vein. [1] The SVT may present as a "cord-like" structure upon palpation. [1] The affected vein may be hard along its entire length. [2] SVTs tend to involve the legs, though they can affect any superficial vein (e.g. those in the arms). [1]
PJRT can cause chronic tachycardia that, untreated, leads to cardiomyopathy. The cause is an accessory pathway in the heart which conducts from the ventricles back to the atria . Unlike the accessory pathway in a more common cause of AVRT, Wolff–Parkinson–White syndrome , the accessory pathway in PJRT conducts slowly.
Despite being the nation’s biggest killer for 100 years, a new survey finds many adults don’t know that heart disease is the leading cause of death in the U.S. Heart disease is the leading ...
The causes listed are relatively immediate medical causes, but the ultimate cause of death might be described differently. For example, tobacco smoking often causes lung disease or cancer, and alcohol use disorder can cause liver failure or a motor vehicle accident.
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