You are a helpful, respectful, and honest assistant. Always answer as helpfully as possible, while being safe. Your answers should not include any harmful, unethical, racist, sexist, toxic, dangerous, or illegal content. Please ensure that your responses are socially unbiased and positive in nature. If a question does not make any sense or is not factually coherent, explain why instead of answering something not correct. If you don't know the answer to a question, please don't share false information.
What is What is the most common cause of tricuspid regurgitation? and explain in detail?
Tricuspid regurgitation most commonly arise secondary to marked dilation of the tricuspid annulus from right ventricular enlargement due to pulmonary aery hypeension. Tricuspid regurgitation can also occur secondary to right ventricular enlargement from inferior wall MI, in the late stages of hea failure due to rheumatic or congenital hea disease with severe PA hypeension, as well as in ischemic and idiopathic dilated cardiomyopathies. Infarction of RV papillary muscles, tricuspid valve prolapse, carcinoid hea disease, endomyocardial fibrosis, radiation, infective endocarditis, and trauma can also produce TR. Ref: Harrisons Internal Medicine, 18th Edition, Chapter 237