Rehan Ahmad, Haq Nawaz, Hassan Shahzad Nazar, Sarfraz Ahmad, Aftab Rabbani, Basharat Ahmed.
Aetiology of tricuspid regurgitation.
J Ayub Med Coll Abottabad Jan ;23(4):28-9.

Background: Tricuspid regurgitation (TR) is regarded as a secondary disorder. Aim of the study was to know what percentage is secondary to heart and lung disease and its prevalence in normal adults. Methods: Two hundred and 30 adults with clinically detectable TR were studied clinically to know the cause of TR. Results: Thirteen percent of the adults were normal without any detectable cause for TR. In others, 24% of TR cases were secondary to ischemic heart disease (IHD) and hypertension was found in 14% cases. Sixteen percent had rheumatic heart disease (RHD) while chronic obstructive lung disease was found in 23% cases. The rest of 10% cases of TR had cardiomyopathy (CMP) and congenital heart disease as secondary causes. Conclusion: Ischemic heart disease, COPD and hypertension are common causes of TR. Others include RHD, CMP and congenital heart disease. Thirteen percent of apparently normal adults had TR

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