Tricuspid regurgitation may either be due to abnormality of the valve such as in Ebstein anomaly
[31] or following endocarditis or be a result of annular dilatation secondary to right ventricular
dilatation. Patients with preserved right ventricular function and who are in NYHA class II and
without arrhythmia tolerate pregnancy with low risk of complications. Patients with moderate to
severe tricuspid regurgitation associated with right ventricular dysfunction or arrhythmias are at a
risk of decompensation during pregnancy, and surgical repair should be considered prior to
pregnancy.