What is Supraventricular tachycardia?
'''Supraventricular tachycardia''' ('''SVT''') is an [[tachycardia|abnormally]] fast heart rhythm caused from improper [[electrical conduction system of the heart|electrical activity]] in the upper part of the [[heart]].<ref name=NIH2011Type>{{cite web|title=Types of Arrhythmia|url=http://www.nhlbi.nih.gov/health/health-topics/topics/arr/types|website=NHLBI|date=July 1, 2011|url-status=live|archive-url=https://web.archive.org/web/20150607165144/http://www.nhlbi.nih.gov/health/health-topics/topics/arr/types|archive-date=June 7, 2015}}</ref> There are four main types: [[atrial fibrillation]], [[paroxysmal supraventricular tachycardia]] (PSVT), [[atrial flutter]], and [[Wolff–Parkinson–White syndrome]]. Symptoms may include [[palpitations]], feeling faint, sweating, [[shortness of breath]], or [[chest pain]].<ref name=NIH2011Sym>{{cite web|title=What Are the Signs and Symptoms of an Arrhythmia?|url=http://www.nhlbi.nih.gov/health/health-topics/topics/arr/signs|website=NHLBI|access-date=27 September 2016|date=July 1, 2011|url-status=live|archive-url=https://web.archive.org/web/20150219081446/http://www.nhlbi.nih.gov/health/health-topics/topics/arr/signs|archive-date=19 February 2015}}</ref> ==References== {{reflist}} {{med-stub}} [[Category:Heart disease]]