Aorta. The aorta is the body's largest artery (the blood vessels that carry oxygen-rich blood). Roughly the diameter of a garden hose, this artery extends from the aortic valve in the heart down through the chest and abdominal region, where it divides into a blood vessel that supplies each leg.
WolffâParkinsonâWhite syndrome (WPW) is one of several disorders of the electrical system of the heart that are commonly referred to as pre-excitation syndromes.olffâParkinsonâWhite syndrome (WPW) is one of several disorders of the electrical system of the heart that are commonly referred to as pre-excitation syndromes.
Approximately 80% of patients with WPW syndrome have a reciprocating tachycardia, 15-30% will develop atrial fibrillation (AF), and 5% have atrial flutter. Ventricular tachycardia (VT) is uncommon. Patients with mitral valve prolapse have an association with WPW, but the mechanism is unclear.