Carcinoid Heart Disease (CaHD) is a valvular heart disease manifesting clinically as right sided Heart failure. CaHD is a complication of Carcinoid Syndrome which is caused by a Neuroendocrine Tumour. Serotonin is thought to be at the heart of CaHD pathogenesis. Tumour biomarkers and echocardiography are the mainstay of diagnosis. Pharmacotherapy involves using Somatostatin analogues, but currently Valvular Heart surgery is the only option offering a potential cure.