Table 3

‚ÄÉConditions in which pregnancy risk is WHO 2 or 3

WHO 2 if otherwise well and uncomplicatedWHO 2-3 depending on individualWHO 3
Unoperated atrial septal defectMild left ventricular impairmentMechanical valve
Repaired tetralogy of Fallot Most arrhythmiasHypertrophic cardiomyopathy Native or tissue valvular heart disease not considered WHO 4Systemic right ventricle (e.g. congenitally corrected transposition, simple transposition post Mustard or Senning repair)
Marfan syndrome without aortic dilatation Heart transplantationPost Fontan operation Cyanotic heart disease
Other complex congenital heart disease