Tricuspid Regurgitation

Valvular Disorders of the Heart Right-sided Valve Lesions Tricuspid Regurgitation

Table 1: Aetiology of tricuspid regurgitation
Congenital	Acquired
Ebstein’s anomaly	RV dilatation – mitral valve disease, RV infarction, pulmonary hypertension Infective endocarditis (intravenous drug abuse) Marfan’s syndrome

Both the tricuspid and pulmonary valves can be stenotic or regurgitant.

In the emergency setting, the most important presentation is tricuspid regurgitation (TR) secondary to either infective endocarditis in intravenous drug abusers or chronic obstructive pulmonary disease (COPD) with pulmonary hypertension and subsequent right ventricular failure/dilatation.
The aetiology of TR is explained in Table 1.

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