Supraventricular Tachycardia [SVT]
A regular rapid heart rate (150-250 beats per minute) that is caused by events triggered in areas above the heart’s lower chambers (the ventricles); see also paroxysmal supraventricular tachycardia (PSVT)
Disorder
Syncope
A temporary, insufficient blood supply to the brain which causes a loss of consciousness. Usually caused by a serious arrhythmia.
Supra Aortic Stenosis
Narrowing above the aortic valve. This results from narrowing of the aorta just above the valve.