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The mechanism of endocardial lead-induced tricuspid regurgitation

Using this case report we attempt to define the mechanism of endocardial lead-induced tricuspid regurgitation (TR) in particular the direct effect of endocardial pacing leads on the competence of the tricuspid valve. We recommend a high index of suspicion and an early diagnostic strategy in order to reduce long-term morbidity which is associated with this condition and the need for a potentially avoidable surgery.