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During an episode of SVT, the heart beats about 150 to 220 times per minute. [9] Specific treatment depends on the type of SVT [5] and can include medications, medical procedures, or surgery. [5] Vagal maneuvers, or a procedure known as catheter ablation, may be effective in certain types. [5]
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]
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]
An automatic tachycardia is a cardiac arrhythmia which involves an area of the heart generating an abnormally fast rhythm, sometimes also called enhanced automaticity.These tachycardias, or fast heart rhythms, differ from reentrant tachycardias (AVRT and AVNRT) in which there is an abnormal electrical pathway which gives rise to the pathology.
The Great Oxidation Event (GOE) or Great Oxygenation Event, also called the Oxygen Catastrophe, Oxygen Revolution, Oxygen Crisis or Oxygen Holocaust, [2] was a time interval during the Earth's Paleoproterozoic era when the Earth's atmosphere and shallow seas first experienced a rise in the concentration of free oxygen. [3]
Died of apparent dysentery in June, after a months-long period of illness during which he predicted his own imminent death, in his 46th year. 1422: King Henry V of England died suddenly on 31 August 1422 at the Château de Vincennes, apparently from dysentery, [39] which he had contracted during the siege of Meaux. He was 35 years old and had ...
Choi Seung-cheol (Korean: 최승철; born August 8, 1995), professionally known by his stage name S.Coups (에스쿱스), is a South Korean rapper, singer and songwriter.. Managed by Pledis Entertainment, he is the leader of the boy group Seventeen, and also the leader of its hip hop te
The Great Wave off Kanagawa is also the subject of the 93rd episode of the BBC Radio series A History of the World in 100 Objects produced in collaboration with the British Museum, which was released on 4 September 2010. [86] A replica of The Great Wave off Kanagawa was created for a documentary film about Hokusai released by the British Museum ...