Table 1.

The most common conditions associated with WPW syndrome.

Category	Condition	Percent (%)
Congenital heart diseases	tricuspid atresia	0.29–1.3%
	Ebstein anomaly	5–25%
	tetralogy of Fallot
	pulmonary stenosis
	coronary abnormalities
	coronary sinus diverticula	3.6–20%
	corrected transposition of the great vessels	2–5%
	atrial/ventricular septal defects
	hypertrophic cardiomyopathy	5%
	mitral valve prolapse
	fibroelastosis
Multisystem diseases	PRKAG2 syndrome hypokalemic periodic paralysis
	Pompe disease
	Danon disease	<1%
	tuberous sclerosis complex; cardiac rhabdomyoma
Surgically acquired	Corrective surgeries; e.g., Fontan procedure
	Heart transplantation
	Valve surgeries
	Intra-atrial baffles