<prompt> Answer this question truthfullyCan you provide an overview of cardiac disease during pregnancy?  <response>: <reason> The following clinical characteristics are independent predictors of adverse outcomes in a risk score for maternal cardiac complications :Prior cardiac events or arrhythmia Poor functional class or cyanosis Left ventricular outflow tract obstruction Left ventricular systolic dysfunctionPulmonary hypertension is a well recognized risk factor during maternal pregnancy. In particular the presence of Eisenmenger syndrome places the mother particularly high risk. 