Cardiovascular · UKMLA & AKT
Tricuspid stenosis
A free high-yield preview for the UKMLA Applied Knowledge Test. Below are the key points to recognise tricuspid stenosis — the full SA Note notes add investigations, management, complications and 10 practice questions.
Key high-yield points
- Rare valvular lesion causing obstruction to right ventricular inflow during diastole → right atrial hypertension → systemic venous congestion
- Most common cause: rheumatic heart disease (almost always with concurrent mitral stenosis)
- Carcinoid syndrome - circulating serotonin causes fibrous plaques on right-sided valves; tricuspid stenosis + pulmonary stenosis are characteristic; left-sided valves spared (liver inactivates mediators) unless hepatic metastases
- Congenital tricuspid stenosis - extremely rare; Ebstein's anomaly primarily causes regurgitation not stenosis
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