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ricuspid and pulmonary valve regurgitation usually occurs as a secondary phenomenon caused by dilatation of the valve ring secondary to right ventricular failure or pulmonary hypertension, respectively. Primary diseases of the tricuspid or pulmonary valves are uncommon, but the more likely causes might include congenital abnormalities, rheumatic heart disease, or infective endocarditis. Carcinoid heart disease is a rare, but interesting and important cause of intrinsic tricuspid and pulmonary valve disease leading to significant morbidity and mortality caused by right heart failure. When treated medically, and in appropriate cases surgically, significant benefits in overall quality of life and long term survival can be achieved. We review the current literature regarding the pathophysiological basis of the disease, the cardiovascular complications, and the currently available treatment strategies. AETIOLOGY AND PATHOPHYSIOLOGYc Carcinoid tumours are rare neuroendocrine malignancies arising from neural crest amine precursor uptake decarboxylation cells. Approximately 90 % of all carcinoid tumours are located in the gastrointestinal system of which the most common sites are the appendix and terminal ileum. Other less common sites include the bronchus and gonads. The most malignant of the carcinoi